BUF - SAN

$174 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 6/21. 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.
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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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Cheap Flights from Buffalo to San Diego

 
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.

Recent round-trip flight deals from Buffalo to San Diego

KAYAK's recommended round-trip deals from the most popular airlines that fly from Buffalo to San Diego.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
11:41 am - 5:03 pmBUF-SAN
8h 22m1 stop
 Logo
6:25 am - 4:29 pmSAN-BUF
7h 04m1 stop
Thu, May 29 - Mon, Jun 2
 Logo
11:41 am - 5:03 pmBUF-SAN
8h 22m1 stop
 Logo
10:57 am - 4:19 pmSAN-BUF
26h 22m1 stop
Thu, May 29 - Thu, Jun 5
United Airlines Logo
5:51 pm - 10:14 pmBUF-SAN
7h 23m1 stop
United Airlines Logo
10:30 pm - 9:56 amSAN-BUF
8h 26m1 stop
$320United Airlines
Find Deal
Tue, Jun 3 - Thu, Jun 12
United Airlines Logo
7:00 am - 11:23 amBUF-SAN
7h 23m1 stop
United Airlines Logo
10:30 pm - 9:54 amSAN-BUF
8h 24m1 stop
$325United Airlines
Find Deal
Thu, Jun 12 - Wed, Jun 25
Delta Logo
6:00 am - 12:33 pmBUF-SAN
9h 33m1 stop
Delta Logo
6:34 am - 7:19 pmSAN-BUF
9h 45m1 stop
$327Delta
Find Deal
Tue, May 27 - Fri, May 30
American Airlines Logo
6:10 am - 1:36 pmBUF-SAN
10h 26m1 stop
American Airlines Logo
9:45 pm - 11:16 amSAN-BUF
10h 31m1 stop
$343American Airlines
Find Deal
Thu, May 22 - Mon, May 26
Southwest Logo
12:50 pm - 7:25 pmBUF-SAN
9h 35m2 stops
Southwest Logo
9:10 pm - 8:05 amSAN-BUF
7h 55m1 stop
$348Southwest
Find Deal
Wed, Sep 24 - Mon, Sep 29
American Airlines Logo
8:00 am - 3:19 pmBUF-SAN
10h 19m2 stops
American Airlines Logo
10:55 pm - 11:09 amSAN-BUF
9h 14m1 stop
$357American Airlines
Find Deal
Fri, Jul 4 - Mon, Jul 7
Delta Logo
3:50 pm - 10:31 pmBUF-SAN
9h 41m1 stop
Delta Logo
12:35 pm - 11:50 pmSAN-BUF
8h 15m1 stop
$362Delta
Find Deal
Mon, Oct 13 - Tue, Oct 21
Southwest Logo
5:30 pm - 9:35 pmBUF-SAN
7h 05m1 stop
Southwest Logo
10:30 am - 11:30 pmSAN-BUF
10h 00m2 stops
$375Southwest
Find Deal
Sat, Aug 16 - Thu, Aug 21
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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.

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

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

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

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 January, where tickets cost $381 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $586 and $501 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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
High seasonDecember
Cheapest flight$174
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 30% increase in price.
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 $174 for a one-way ticket and $252 for a round-trip.

  • Do I need a passport to fly between Buffalo and San Diego?

    No, a passport isn't needed to fly from Buffalo to San Diego. However, local authorities might ask for an official ID.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Buffalo to San Diego are Delta and Southwest. With an average price for the route of $416 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $463 and an overall rating of 8.0.

  • 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. Booking your flights between Buffalo and SAN can sometimes prove cheaper using this method.

  • 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.

Top 5 airlines serving 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 4294 reviews
8.2Boarding
7.1Food
8.0Comfort
7.6Entertainment
8.6Crew
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2025LGB - SMF
Read more Southwest reviews

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.

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 hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

Rough day of travel all the way around. Wrong info given to us multiple times and mistakes in their booking making our trip 10 hours longer than planned. I’m bummed because I fly Delta all the time and love them. Mistakes happen. Just bummed that this was a rare trip our whole family was traveling together.

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

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We arrived early and finally made it to our gate almost an hour after.

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

The best flight I’ve had in a while. The plane was like 25% capacity, if that. Smoothest boarding and deplaning process I’ve ever experienced. Wish all flights were this smooth.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

Over 2 hour delay for a 50-minute flight is unacceptable, especially in normal weather. Very poor communication via app

In-flight staff was very helpful and excellent. However, the flight was delayed by 90 minutes. Also the boarding process should be expedited in case of delayed flights. This will help the passengers trying to make international connections.

The WiFi stopped working early on in the flight. No audio from entertainment system.

The flight was excellent. The crew was welcoming and attentive.

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

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

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

AA is always pretty solid. Was on time all the way around today so can’t complain!

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

Information on your arrival and departure airports

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