BUF - SFO

C$ 166 Find Cheap Flights from Buffalo to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to San Francisco departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San Francisco, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Buffalo to San Francisco (BUF-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to San Francisco

Fri, 3 Oct - Sun, 5 Oct
Frontier Logo
4:57 p.m. - 12:16 a.m.BUF-SFO
10h 19m1 stop
Frontier Logo
6:29 a.m. - 4:02 p.m.SFO-BUF
6h 33m1 stop
C$ 219Frontier
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Thu, 2 Oct - Sun, 5 Oct
Frontier Logo
12:17 p.m. - 9:21 p.m.BUF-SFO
12h 04m1 stop
Frontier Logo
6:29 a.m. - 4:02 p.m.SFO-BUF
6h 33m1 stop
C$ 224Frontier
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Fri, 3 Oct - Sun, 5 Oct
Frontier Logo
4:57 p.m. - 12:16 a.m.BUF-SFO
10h 19m1 stop
Frontier Logo
6:29 a.m. - 4:02 p.m.SFO-BUF
6h 33m1 stop
C$ 246Frontier
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Thu, 20 Nov - Mon, 24 Nov
Southwest Logo
8:05 a.m. - 1:20 p.m.BUF-SFO
8h 15m1 stop
Southwest Logo
5:15 a.m. - 7:20 p.m.SFO-BUF
11h 05m1 stop
C$ 365Southwest
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Mon, 15 Dec - Mon, 26 Jan
Southwest Logo
6:00 a.m. - 1:20 p.m.BUF-SFO
10h 20m1 stop
Southwest Logo
5:35 p.m. - 8:05 a.m.SFO-BUF
11h 30m2 stops
C$ 407Southwest
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Tue, 14 Oct - Mon, 20 Oct
American Airlines Logo
4:01 p.m. - 11:35 p.m.BUF-SFO
10h 34m1 stop
American Airlines Logo
5:09 a.m. - 6:52 p.m.SFO-BUF
10h 43m1 stop
C$ 408American Airlines
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Tue, 14 Oct - Mon, 20 Oct
American Airlines Logo
4:25 p.m. - 9:56 p.m.BUF-SFO
8h 31m1 stop
American Airlines Logo
5:09 a.m. - 6:52 p.m.SFO-BUF
10h 43m1 stop
C$ 435American Airlines
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Wed, 1 Oct - Sun, 5 Oct
Delta Logo
12:06 p.m. - 6:48 p.m.BUF-SFO
9h 42m1 stop
Delta Logo
11:00 p.m. - 8:23 a.m.SFO-BUF
6h 23m1 stop
C$ 493Delta
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Mon, 23 Feb - Thu, 26 Feb
Delta Logo
7:15 p.m. - 10:40 a.m.BUF-SFO
18h 25m1 stop
Delta Logo
10:45 p.m. - 9:45 a.m.SFO-BUF
8h 00m1 stop
C$ 501Delta
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Tue, 14 Oct - Tue, 21 Oct
United Airlines Logo
7:07 a.m. - 1:35 p.m.BUF-SFO
9h 28m1 stop
United Airlines Logo
6:35 a.m. - 9:13 p.m.SFO-BUF
11h 38m2 stops
C$ 562United Airlines
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Everything you should know

Top airlines
Frontier
Cheapest • from C$ 219 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 17% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
C$ 219
Overall average: C$ 493
Frontier
Fri 3/10Sun 5/10
BUF - SFO • 1 stop
Cheapest one-way flights
C$ 166
Typical prices: C$ 199-498
Frontier
Thu 2/10
BUF - SFO • 1 stop
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We hope you love your trip to San Francisco!
Booking Insights

KAYAK's insights & trends for Buffalo to San Francisco flights

Get data-powered insights and trends into flights from Buffalo to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Buffalo to San Francisco?

The average price of all round-trip flights from Buffalo to San Francisco clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to San Francisco on a Wednesday and more expensive on a Sunday. On your return trip to Buffalo, you should consider flying back on a Monday, and avoid Tuesdays for better deals.

What is the cheapest month to fly from Buffalo to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Buffalo to San Francisco is August, where tickets cost C$ 406 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is C$ 550 and C$ 548 respectively.

How far in advance should I book a flight from Buffalo to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Buffalo to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Buffalo to San Francisco, you should book around 4 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flightC$ 166
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 0% lower on average.
Flight from Buffalo to San Francisco

When to book flights from Buffalo to San Francisco

Are your dates flexible? Find out the best times to travel from Buffalo to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to San Francisco

  • Does BUF have a pet relief area?

    BUF has a pet relief area on the lower level of the main terminal next to the terminal exit. It should be noted that pets are only permitted inside the airport's grounds if they are contained in approved animal crates.

  • Where is the USO military lounge located in SFO?

    The USO military lounge is located on the mezzanine level of Terminal 1. It features comfortable seats, clean restrooms, a snack bar, and complimentary magazines. The lounge is only open to serving members of the US military and their families. It is accessible via the elevators behind the Delta Airlines ticket counter.

  • How can I get assisted travel services on my flight from BUF to SFO?

    All the airlines that offer flights from BUF to SFO offer disabled travelers assisted travel services. If you’re one such traveler, you can get the assisted travel services you require if you inform the airline you intend to travel with in advance. Ideally, you should inform the airline when booking your flight ticket or at least 24 hours prior to your flight.

  • Can I breastfeed at SFO?

    Traveling mothers who wish to breastfeed or tend to their babies at SFO can do so with ease, given that this airport features numerous private and comfortable nursing rooms. These nursing rooms can be found in all terminals near the family restrooms. Mothers are urged to look for the nursery and family restroom signs and use the black courtesy phones next to the entrance to request access.

  • What is the cheapest flight from Buffalo to San Francisco?

    In the last 3 days, the lowest price for a flight from Buffalo to San Francisco was C$ 120 for a one-way ticket and C$ 158 for a round-trip.

  • Which airports will I be using when flying from Buffalo to San Francisco?

    Buffalo airport is called Buffalo and the only airport in San Francisco is San Francisco.

  • Which aircraft models fly most regularly from Buffalo to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to San Francisco?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Buffalo and San Francisco, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Buffalo to San Francisco, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Buffalo to San Francisco are Southwest and Delta. With an average price for the route of C$ 511 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 455 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Buffalo to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Buffalo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Buffalo to San Francisco

  • Buffalo Niagara International Airport (BUF) is the primary airport serving Buffalo. It is located in Cheektowaga, 11 miles east of downtown Buffalo. San Francisco International Airport (SFO) is the primary aviation gateway into San Francisco. It is located in San Mateo, 13 miles south of downtown San Francisco. It serves as a hub for United Airlines, Alaska Airlines, and SkyWest Airlines.
  • Take advantage of BUF's elite Club Lounge if you need a quiet place to relax before your flight. The lounge is located in the main Terminal between Gate 6 and Gate 9 and can be accessed by paying an entrance fee at the door.
  • In case you are traveling with children, take them to the children's play area at BUF. The Fisher-Price branded children's play area is located in the main terminal directly across from Gate 19. It features modern children's play equipment, including toys and slides, and an adult seating area with power outlets.
  • Travelers Aid, a non-profit organization, has teamed up with SFO to help passengers who are in distress or stranded at the airport. Volunteers from the organization assist travelers in emergencies, such as finding emergency accommodation or transportation. They have offices in Terminal 1 opposite Door 6 and Terminal 3 opposite Yankee Pier Restaurant.
  • If you arrive at SFO feeling stressed or anxious, look for the Wag Brigade. The Wag Brigade is a group of trained therapy dogs that roam the airport comforting passengers. You are welcome to cuddle and pet these animals as they will reciprocate the affection.

Reviews of the top 5 airlines flying from Buffalo to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
8.6Crew
7.5Entertainment
8.1Boarding
8.0Comfort
7.0Food
Airline reviews

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

10.0 ExcellentGordon, Jul 2025GEG - OAK
Read more Southwest reviews

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

It went well. Plane wasn't full. Will be great when assigned seating is in place

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

I believe that a four-hour trip should have a meal. Delta had none.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The entertainment and wifi mostly didn't work on this flight.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Boarded plane and then delayed 1.5 hours while on the plane

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

Finally a Frontier on time and efficient. I've had problems before with your airline, but this time everything went fine.

The experience was good. No frills but I got there safe and sound and on time.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

sluggish boarding and arrival procedures, fake nice flight attendants, and lots of delays.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Everything you need to know for your flight from Buffalo to San Francisco

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