BUF - SAN

C$ 186 Find Cheap Flights from Buffalo to San Diego – Compare and Save

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 28/9. 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

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Everything you should know

Cheapest round-trip
C$ 430
Typical prices: C$ 513-C$ 702
Southwest
Sat 12/9Sat 19/9
BUF - SAN • 1 stop
Cheapest one-way flights
C$ 186
Typical prices: C$ 216-C$ 615
Frontier
Mon 28/9
BUF - SAN • 2 stops
Top airlines
Cheapest • from C$ 430 (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$ 436 (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 44% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 14% price drop
Most popular
Good to know
Good to know
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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

Sat, 12 Sep - Sat, 19 Sep
Southwest Logo
7:50 a.m. - 12:10 p.m.
BUF
-
SAN
7h 20m
1 stop
Southwest Logo
10:40 p.m. - 10:50 a.m.
SAN
-
BUF
9h 10m
1 stop
C$ 430Southwest
Sat, 5 Sep - Fri, 11 Sep
Southwest Logo
5:15 p.m. - 11:15 p.m.
BUF
-
SAN
9h 00m
1 stop
Southwest Logo
10:40 p.m. - 9:55 a.m.
SAN
-
BUF
8h 15m
1 stop
C$ 430Southwest
Thu, 10 Dec - Tue, 15 Dec
Delta Logo
12:32 p.m. - 6:42 p.m.
BUF
-
SAN
9h 10m
1 stop
Delta Logo
10:40 p.m. - 11:23 a.m.
SAN
-
BUF
9h 43m
1 stop
C$ 430Delta
Wed, 23 Sep - Tue, 29 Sep
Delta Logo
3:53 p.m. - 11:34 p.m.
BUF
-
SAN
10h 41m
1 stop
Delta Logo
12:52 p.m. - 11:52 p.m.
SAN
-
BUF
8h 00m
1 stop
C$ 430Delta
Thu, 29 Oct - Mon, 2 Nov
Delta Logo
6:10 a.m. - 10:20 a.m.
BUF
-
SAN
7h 10m
1 stop
Delta Logo
11:31 a.m. - 10:38 p.m.
SAN
-
BUF
8h 07m
1 stop
C$ 430Delta
Thu, 3 Dec - Sun, 6 Dec
Southwest Logo
4:55 p.m. - 11:00 p.m.
BUF
-
SAN
9h 05m
1 stop
Southwest Logo
6:15 a.m. - 4:50 p.m.
SAN
-
BUF
7h 35m
1 stop
C$ 434Southwest
Mon, 5 Oct - Fri, 9 Oct
Southwest Logo
5:45 p.m. - 12:10 a.m.
BUF
-
SAN
9h 25m
1 stop
Southwest Logo
9:50 p.m. - 8:15 a.m.
SAN
-
BUF
7h 25m
1 stop
C$ 434Southwest
Sat, 29 Aug - Sat, 5 Sep
American Airlines Logo
7:00 a.m. - 2:14 p.m.
BUF
-
SAN
10h 14m
1 stop
American Airlines Logo
10:30 p.m. - 10:41 a.m.
SAN
-
BUF
9h 11m
1 stop
C$ 448American Airlines
Thu, 27 Aug - Thu, 3 Sep
American Airlines Logo
6:09 p.m. - 11:47 p.m.
BUF
-
SAN
8h 38m
1 stop
American Airlines Logo
9:36 p.m. - 10:18 a.m.
SAN
-
BUF
9h 42m
1 stop
C$ 520American Airlines
Sun, 22 Nov - Tue, 1 Dec
American Airlines Logo
3:26 p.m. - 9:45 p.m.
BUF
-
SAN
9h 19m
1 stop
American Airlines Logo
6:20 a.m. - 6:37 p.m.
SAN
-
BUF
9h 17m
1 stop
C$ 537American Airlines
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 December.

Flight prices are below average for this route right now.

Flights to San Diego from Buffalo usually cost between C$ 490 and C$ 639 in December.
The lowest price found in the past 5 days was C$ 430 on Delta (10 Dec–15 Dec).

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$ 492 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is C$ 771 and C$ 642 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 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

June

Cheapest flight

C$ 186
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly and prices are also 6% 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 5 days, the lowest price for a flight from Buffalo to San Diego was C$ 186 for a one-way ticket and C$ 430 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$ 614 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$ 499 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 4229 reviews
7.5Entertainment
7.0Food
8.0Comfort
8.1Boarding
8.6Crew
Airline reviews

3 hour delay. Had to change plans and was still delayed.

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

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

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

Our first flight was so delayed that we had 10 mins to board the next one. We requested if the flight attendant could allow us off there plane first and they denied our request even though I have seen this done before. Luck was on our side that we didn’t miss our next flight.

Everything was great except for the in-flight wifi that wasn't working.

It was great! The new boeing has much more space and charging ports!

Took a little longer than normal, but the process is clear and easy to understand.

Baggage check in would have been better if the service clerk told the other clerk that she was merging her two long lines of customers with her line so she could move luggage. Instead she only told the customers. When I told the agent and ask if she could direct who is next in line so we weren’t trying to cut in front of each other she said it’s not her problem and she can’t work three lines. I was shocked. Understood that they were working more than their share but some organization so the customers aren’t getting upset at each other would have gone a long way

The seat when "flat" was not flat and pad was too thin to cover it.

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

We are too tired and frustrated to comment politely at this point

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.

The service and food needs to improve to catch up with other international flights

The flight crew was fantastic! Which the seats had a small TV.

also wi-fi never worked attendant said satellite coverage is spotty over water ..... but we were over land!

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

This time my flight was smooth and uneventful. They started boarding even earlier than it was scheduled. I was pleasantly surprised. Thank you!

Boarding was a mess - the agent basically called every group in rapid succession, so there was no organization at all. The economy seats are a joke, and main cabin extra seats were sold out when I purchased my flight. As such, I was locked in the same position for four hours. Being 6’6”, it was impossible to get my bag out from under the seat in front of me, and I couldn’t have used my laptop even if my bag were accessible due to the minuscule seat pitch. Also the wifi was broken. American is a joke - can’t wait until they merge with Spirit.

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

Information on your arrival and departure airports