BUF - SAN

C$ 241 Find Cheap Flights from Buffalo to San Diego

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 Diego departing on 16/7. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to San Diego, 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 Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 473
Typical prices: C$ 638-C$ 443
Southwest
Fri 11/9Sun 13/9
BUF - SAN • 1 stop
Cheapest one-way flights
C$ 241
Typical prices: C$ 238-C$ 506
Delta
Thu 16/7
BUF - SAN • 1 stop
Top airlines
Cheapest • from C$ 473 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between Buffalo and San Diego. You’ll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg C$ 397 (round-trip)
Shortest trip • 7h 06m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 33% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to San Diego (BUF-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to San Diego 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 Diego

Fri, 11 Sep - Sun, 13 Sep
Southwest Logo
3:55 p.m. - 10:45 p.m.
BUF
-
SAN
9h 50m
1 stop
Southwest Logo
4:05 p.m. - 1:30 a.m.
SAN
-
BUF
6h 25m
1 stop
C$ 473Southwest
Fri, 17 Jul - Sun, 19 Jul
Delta Logo
7:36 p.m. - 11:30 p.m.
BUF
-
SAN
6h 54m
1 stop
Delta Logo
2:40 p.m. - 11:58 p.m.
SAN
-
BUF
6h 18m
1 stop
C$ 480Delta
Fri, 11 Sep - Sun, 13 Sep
Southwest Logo
3:55 p.m. - 9:55 p.m.
BUF
-
SAN
9h 00m
2 stops
Southwest Logo
4:05 p.m. - 1:30 a.m.
SAN
-
BUF
6h 25m
1 stop
C$ 481Southwest
Fri, 13 Nov - Sun, 15 Nov
Southwest Logo
7:20 a.m. - 1:40 p.m.
BUF
-
SAN
9h 20m
2 stops
Southwest Logo
7:45 a.m. - 4:50 p.m.
SAN
-
BUF
6h 05m
1 stop
C$ 487Southwest
Fri, 11 Sep - Sun, 13 Sep
Southwest Logo
3:55 p.m. - 9:55 p.m.
BUF
-
SAN
9h 00m
2 stops
Southwest Logo
9:30 p.m. - 11:10 a.m.
SAN
-
BUF
10h 40m
2 stops
C$ 494Southwest
Fri, 26 Jun - Mon, 29 Jun
Delta Logo
7:45 p.m. - 11:35 p.m.
BUF
-
SAN
6h 50m
1 stop
Delta Logo
10:00 p.m. - 9:40 a.m.
SAN
-
BUF
8h 40m
1 stop
C$ 513Delta
Thu, 16 Jul - Wed, 22 Jul
Delta Logo
7:36 p.m. - 11:30 p.m.
BUF
-
SAN
6h 54m
1 stop
Delta Logo
2:40 p.m. - 11:58 p.m.
SAN
-
BUF
6h 18m
1 stop
C$ 514Delta
Thu, 16 Jul - Mon, 20 Jul
Southwest Logo
5:55 p.m. - 11:20 p.m.
BUF
-
SAN
8h 25m
1 stop
Southwest Logo
7:35 p.m. - 8:00 a.m.
SAN
-
BUF
9h 25m
2 stops
C$ 521Southwest
Fri, 18 Sep - Tue, 22 Sep
Southwest Logo
6:30 a.m. - 1:25 p.m.
BUF
-
SAN
9h 55m
2 stops
Southwest Logo
9:35 a.m. - 8:35 p.m.
SAN
-
BUF
8h 00m
2 stops
C$ 522Southwest
Sat, 27 Jun - Tue, 7 Jul
Southwest Logo
12:35 p.m. - 10:55 p.m.
BUF
-
SAN
13h 20m
1 stop
Southwest Logo
7:15 a.m. - 9:25 p.m.
SAN
-
BUF
11h 10m
2 stops
C$ 524Southwest
Booking Insights

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

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

How much is a round-trip flight from Buffalo to San Diego?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Buffalo to San Diego departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Buffalo to San Diego, 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 Diego is October, where tickets cost C$ 483 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is C$ 727 and C$ 569 respectively.

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

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 Diego, 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 Diego, you should book around 4 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJuly
Cheapest flightC$ 241
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Buffalo to San Diego

When to book flights from Buffalo to San Diego

Are your dates flexible? Find out the best times to travel from Buffalo to San Diego 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 Diego

  • If you will be sending an unaccompanied minor from Buffalo to San Diego, consider choosing an affordable Delta flight with one stop in either Atlanta (ATL) or Detroit (DTW). During the connection at ATL or DTW, your child can enjoy the Delta Sky Zone, a supervised lounge designed to entertain unaccompanied minors waiting for the next leg of their flight.

    Which airline provides an affordable green flight from Buffalo to San Diego?

  • A competitively-priced flight on American Airlines with one stop will leave a small carbon footprint. American Airlines is often rated one of the Top 10 most sustainable airlines in the world because they use more sustainable aviation fuel than almost any other North American airline. American also reduces waste and increases recycling on each of their flights.

    Which Buffalo to San Diego flight offers the most comfortable economy seat?

  • A Basic Economy ticket aboard Delta buys you 31 inches of seat pitch, as opposed to 28–30 inches on other comparably priced airlines. At your Delta economy seat, you can also enjoy power and USB outlets and seat back entertainment. You can buy a light meal for a fee on the second leg of the flight.

    What are some common connection cities on a flight from Buffalo to San Diego?

  • On one-stop flights from BUF to SAN, Chicago (ORD) is a common connection city on United and American. American also stops in Philadelphia, Charlotte, and Dallas (DFW). Delta flights tend to stop in Atlanta, Detroit, or Minneapolis. JetBlue stops in Boston and Frontier stops in Orlando.

    Can I rent a car when I land in San Diego?

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

    In the last 3 days, the lowest price for a flight from Buffalo to San Diego was C$ 241 for a one-way ticket and C$ 473 for a round-trip.

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Buffalo to San Diego flight route.

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

    oneworld is the only airline alliance operating flights between Buffalo and San Diego.

  • Which is the best airline for flights from Buffalo to San Diego, Southwest or American Airlines?

    The two airlines most popular with KAYAK users for flights from Buffalo to San Diego are Southwest and American Airlines. With an average price for the route of C$ 641 and an overall rating of 8.0, Southwest is the most popular choice. American Airlines is also a great choice for the route, with an average price of C$ 489 and an overall rating of 7.1.

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

    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 Diego.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego 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 Diego?

    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 Diego 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 Diego?

    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 Diego 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 Diego

  • Because both the Czech Republic and Germany are parties to the Schengen Agreement, Americans may visit these countries as a tourist or for business purposes for up to 90 days without applying for a visa. If you plan to be in the Schengen Area longer than 90 days, or you are traveling for other purposes, you will probably need to apply for a visa.
  • The Buffalo Niagara International Airport (BUF) is a hub for Delta, JetBlue, Southwest, and Wiggins Airlines. The San Diego International Airport (SAN) is a hub for Southwest Airlines, West Air, and Alaska Airlines. You can find some of the cheapest tickets from BUF to SAN aboard Delta, JetBlue, and Southwest.
  • Some of the cheapest tickets you can buy from BUF to SAN are aboard American Airlines with one stop. Many of these flights, though not all, include one carry-on in the price of your Basic Economy ticket. Your American Airlines carry-on must be within 22 x 14 x 9 inches and 40 lb.
  • Consider pampering yourself from BUF to SAN by choosing a First Class ticket for your flight across the country. With First Class, you will speed through check-in and security, board first, and get your checked bags first when you land. Your seat in the cabin will be wider with more legroom, and you'll be able to enjoy complimentary alcoholic drinks and refined dining.
  • If you want to relax in style and comfort at BUF as you wait for your flight to San Diego, you can pay an entrance fee in order to access the exclusive lounge The Club. BUF has just one terminal, and The Club is in this terminal airside between gate 6 and 7.

Reviews of the top airlines flying from Buffalo to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to San Diego. 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 Diego? 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 4291 reviews
8.6Crew
7.5Entertainment
8.0Comfort
7.0Food
8.1Boarding
Airline reviews

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

10.0 ExcellentRobert, May 2026
LAS - SFO
Read more Southwest reviews

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

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

Information on your arrival and departure airports