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Cheap flights from Buffalo to San Diego from $136

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to San Diego departing on 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Buffalo to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:25 pm - 11:00 pmBUF-SAN
7h 35m1 stop
Southwest Logo
1:15 pm - 10:40 pmSAN-BUF
6h 25m1 stop
$333Southwest
Find Deal
Tue, Dec 9 - Tue, Dec 16
Southwest Logo
9:30 am - 5:05 pmBUF-SAN
10h 35m2 stops
Southwest Logo
1:15 pm - 10:40 pmSAN-BUF
6h 25m1 stop
$338Southwest
Find Deal
Tue, Dec 9 - Tue, Dec 16
Delta Logo
5:44 pm - 11:04 pmBUF-SAN
8h 20m1 stop
Delta Logo
7:00 am - 7:19 pmSAN-BUF
9h 19m1 stop
$343Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
United Airlines Logo
2:49 pm - 8:47 pmBUF-SAN
8h 58m1 stop
United Airlines Logo
6:15 am - 8:29 pmSAN-BUF
11h 14m2 stops
$348United Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
10:45 am - 5:28 pmBUF-SAN
9h 43m2 stops
United Airlines Logo
6:15 am - 7:25 pmSAN-BUF
10h 10m2 stops
$353United Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
Delta Logo
10:31 am - 10:48 pmBUF-SAN
15h 17m2 stops
Delta Logo
11:43 am - 10:59 pmSAN-BUF
8h 16m1 stop
$358Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
Delta Logo
10:31 am - 10:48 pmBUF-SAN
15h 17m2 stops
Delta Logo
10:05 pm - 9:48 amSAN-BUF
8h 43m1 stop
$363Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
JetBlue Logo
11:48 am - 10:28 amBUF-SAN
25h 40m1 stop
JetBlue Logo
9:05 pm - 9:20 amSAN-BUF
9h 15m1 stop
$364JetBlue
Find Deal
Sun, Dec 7 - Sat, Dec 13
United Airlines Logo
7:00 am - 11:25 amBUF-SAN
7h 25m1 stop
United Airlines Logo
10:30 pm - 10:26 amSAN-BUF
8h 56m1 stop
$371United Airlines
Find Deal
Wed, Apr 22 - Wed, Apr 29
Delta Logo
10:31 am - 10:48 pmBUF-SAN
15h 17m2 stops
Delta Logo
11:43 am - 10:59 pmSAN-BUF
8h 16m1 stop
$373Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4

Southwest flights from Buffalo to San Diego

Our best Southwest deals on Buffalo to San Diego flight tickets
Southwest
Dec 9
BUF6:25 pmBuffalo
7h 35m
1 stop
SAN11:00 pmSan Diego
Dec 16
SAN1:15 pmSan Diego
6h 25m
1 stop
BUF10:40 pmBuffalo
$333
Find similar
Southwest
Dec 9
BUF9:30 amBuffalo
10h 35m
2 stops
SAN5:05 pmSan Diego
Dec 16
SAN1:15 pmSan Diego
6h 25m
1 stop
BUF10:40 pmBuffalo
$338
Find similar
Southwest
Feb 6
BUF5:50 amBuffalo
10h 00m
2 stops
SAN12:50 pmSan Diego
Feb 14
SAN6:45 amSan Diego
8h 50m
2 stops
BUF6:35 pmBuffalo
$378
Find similar

United Airlines flights from Buffalo to San Diego

Our best United Airlines deals on Buffalo to San Diego flight tickets
United Airlines
Jan 13
BUF2:49 pmBuffalo
8h 58m
1 stop
SAN8:47 pmSan Diego
Jan 20
SAN6:15 amSan Diego
11h 14m
2 stops
BUF8:29 pmBuffalo
$348
Find similar
United Airlines
Jan 13
BUF10:45 amBuffalo
9h 43m
2 stops
SAN5:28 pmSan Diego
Jan 20
SAN6:15 amSan Diego
10h 10m
2 stops
BUF7:25 pmBuffalo
$353
Find similar
United Airlines
Apr 22
BUF7:00 amBuffalo
7h 25m
1 stop
SAN11:25 amSan Diego
Apr 29
SAN10:30 pmSan Diego
8h 56m
1 stop
BUF10:26 amBuffalo
$371
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from Buffalo to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 12/9

6:25 pm-11:00 pm

1 stop7h 35m

San Diego

Tue 12/16

1:15 pm-10:40 pm

1 stop6h 25m

$333

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 12/9

9:30 am-5:05 pm

2 stops10h 35m

San Diego

Tue 12/16

1:15 pm-10:40 pm

1 stop6h 25m

$338

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/3

5:44 pm-11:04 pm

1 stop8h 20m

San Diego

Wed 3/4

7:00 am-7:19 pm

1 stop9h 19m

$343

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 1/13

2:49 pm-8:47 pm

1 stop8h 58m

San Diego

Tue 1/20

6:15 am-8:29 pm

2 stops11h 14m

$348

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 1/13

10:45 am-5:28 pm

2 stops9h 43m

San Diego

Tue 1/20

6:15 am-7:25 pm

2 stops10h 10m

$353

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/3

10:31 am-10:48 pm

2 stops15h 17m

San Diego

Wed 3/4

11:43 am-10:59 pm

1 stop8h 16m

$358

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/3

10:31 am-10:48 pm

2 stops15h 17m

San Diego

Wed 3/4

10:05 pm-9:48 am

1 stop8h 43m

$363

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 12/7

11:48 am-10:28 am

1 stop25h 40m

San Diego

Sat 12/13

9:05 pm-9:20 am

1 stop9h 15m

$364

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 4/22

7:00 am-11:25 am

1 stop7h 25m

San Diego

Wed 4/29

10:30 pm-10:26 am

1 stop8h 56m

$371

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/3

10:31 am-10:48 pm

2 stops15h 17m

San Diego

Wed 3/4

11:43 am-10:59 pm

1 stop8h 16m

$373

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Buffalo to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of October, then departing from Buffalo during the month September is also very affordable. Most momondo users find prices during this month for around $373.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Buffalo to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $397. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $551. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $330. Flights in the morning are often more expensive with an average ticket price of $457.

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

You are more likely to see cheaper flights to San Diego from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $431 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Buffalo for as low as $354 on momondo.

How have Buffalo to San Diego flight prices changed over time?

As of November 2025, prices for Buffalo to San Diego flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Buffalo to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to San Diego (BUF to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to San Diego

Direct flights

None
There are no direct flights from Buffalo to San Diego. There are no popular flight routes from Buffalo to San Diego.
Search flight deals

  • How far is Buffalo to San Diego by plane?

    There are 2181.7 mi between Buffalo and San Diego. Typically, this will take 7h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Buffalo Airport to San Diego Airport?

    Prices for flights from Buffalo Airport to San Diego Airport are updated daily.

  • How many operators does momondo search for flights from Buffalo Airport to San Diego Airport?

  • How old do you have to be to fly from Buffalo Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Buffalo to San Diego?

  • What is the most popular airline from Buffalo to San Diego?

Best airlines flying from Buffalo to San Diego

Compare and see reviews for airlines that fly from Buffalo to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $99Free CancellationRating
5.8
3,113 reviews
Search Frontier flights
JetBluePriceFrom $256Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
SouthwestPriceFrom $267Free CancellationRating
8.0
4,235 reviews
Search Southwest flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,010 reviews
Search Delta flights
United AirlinesPriceFrom $331Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Imperial Beach
La Mesa
Poway
Borrego Springs
San Ysidro
Lemon Grove
Alpine
Santee

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to San Diego?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Buffalo.

Can I find flights from Buffalo to San Diego with flexible booking policies on momondo?

Flights from Buffalo to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Buffalo to San Diego?

momondo helps you find the best flight between Buffalo and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Buffalo to San Diego right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Buffalo to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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