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Cheap flights from Buffalo to San Diego from $129

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 10/4. 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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0 bags

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Find the cheapest flights from Buffalo to San Diego

Cheap round-trip flights

Frontier Logo
4:57 pm - 11:53 pmBUF-SAN
9h 56m1 stop
Frontier Logo
6:35 am - 4:02 pmSAN-BUF
6h 27m1 stop
$242Frontier
Find Deal
Fri, Sep 26 - Sun, Sep 28
Frontier Logo
12:17 pm - 11:53 pmBUF-SAN
14h 36m2 stops
Frontier Logo
6:35 am - 4:03 pmSAN-BUF
6h 28m1 stop
$255Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
11:34 am - 6:59 pmBUF-SAN
10h 25m1 stop
American Airlines Logo
6:19 am - 3:56 pmSAN-BUF
6h 37m1 stop
$257American Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
American Airlines Logo
6:02 pm - 10:24 pmBUF-SAN
7h 22m1 stop
American Airlines Logo
10:49 pm - 11:08 amSAN-BUF
9h 19m1 stop
$258American Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Delta Logo
5:55 pm - 10:00 pmBUF-SAN
7h 05m1 stop
Delta Logo
6:15 am - 5:07 pmSAN-BUF
7h 52m1 stop
$297Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
Delta Logo
1:11 pm - 6:29 pmBUF-SAN
8h 18m1 stop
Delta Logo
10:10 pm - 10:37 amSAN-BUF
9h 27m1 stop
$307Delta
Find Deal
Sat, Nov 15 - Fri, Jan 9
Southwest Logo
6:20 am - 10:50 amBUF-SAN
7h 30m1 stop
Southwest Logo
7:40 pm - 8:05 amSAN-BUF
9h 25m2 stops
$309Southwest
Find Deal
Tue, Jan 6 - Tue, Jan 6
Southwest Logo
5:05 pm - 9:00 pmBUF-SAN
6h 55m1 stop
Southwest Logo
8:40 am - 8:40 pmSAN-BUF
9h 00m2 stops
$312Southwest
Find Deal
Sat, Nov 1 - Wed, Nov 5
United Airlines Logo
2:55 pm - 10:29 pmBUF-SAN
10h 34m2 stops
United Airlines Logo
12:43 pm - 10:52 pmSAN-BUF
7h 09m1 stop
$338United Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
United Airlines Logo
2:50 pm - 8:19 pmBUF-SAN
8h 29m1 stop
United Airlines Logo
10:15 pm - 9:43 amSAN-BUF
8h 28m1 stop
$350United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6

American Airlines flights from Buffalo to San Diego

Our best American Airlines deals on Buffalo to San Diego flight tickets
American Airlines
Nov 15
BUF11:34 amBuffalo
10h 25m
1 stop
SAN6:59 pmSan Diego
Nov 19
SAN6:19 amSan Diego
6h 37m
1 stop
BUF3:56 pmBuffalo
$257
Find similar
American Airlines
Oct 29
BUF6:02 pmBuffalo
7h 22m
1 stop
SAN10:24 pmSan Diego
Nov 5
SAN10:49 pmSan Diego
9h 19m
1 stop
BUF11:08 amBuffalo
$258
Find similar
American Airlines
Nov 15
BUF11:54 amBuffalo
9h 30m
2 stops
SAN6:24 pmSan Diego
Nov 19
SAN6:46 amSan Diego
8h 02m
1 stop
BUF5:48 pmBuffalo
$262
Find similar

Delta flights from Buffalo to San Diego

Our best Delta deals on Buffalo to San Diego flight tickets
Delta
Mar 3
BUF5:55 pmBuffalo
7h 05m
1 stop
SAN10:00 pmSan Diego
Mar 4
SAN6:15 amSan Diego
7h 52m
1 stop
BUF5:07 pmBuffalo
$297
Find similar
Delta
Nov 15
BUF1:11 pmBuffalo
8h 18m
1 stop
SAN6:29 pmSan Diego
Jan 9
SAN10:10 pmSan Diego
9h 27m
1 stop
BUF10:37 amBuffalo
$307
Find similar
Delta
Oct 17
BUF3:57 pmBuffalo
10h 50m
1 stop
SAN11:47 pmSan Diego
Oct 20
SAN10:20 pmSan Diego
7h 03m
1 stop
BUF8:23 amBuffalo
$317
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 September 15, 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

Fri 9/26

4:57 pm-11:53 pm

1 stop9h 56m

San Diego

Sun 9/28

6:35 am-4:02 pm

1 stop6h 27m

$242

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 10/2

12:17 pm-11:53 pm

2 stops14h 36m

San Diego

Mon 10/6

6:35 am-4:03 pm

1 stop6h 28m

$255

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 11/15

11:34 am-6:59 pm

1 stop10h 25m

San Diego

Wed 11/19

6:19 am-3:56 pm

1 stop6h 37m

$257

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 10/29

6:02 pm-10:24 pm

1 stop7h 22m

San Diego

Wed 11/5

10:49 pm-11:08 am

1 stop9h 19m

$258

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/3

5:55 pm-10:00 pm

1 stop7h 05m

San Diego

Wed 3/4

6:15 am-5:07 pm

1 stop7h 52m

$297

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 11/15

1:11 pm-6:29 pm

1 stop8h 18m

San Diego

Fri 1/9

10:10 pm-10:37 am

1 stop9h 27m

$307

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 1/6

6:20 am-10:50 am

1 stop7h 30m

San Diego

Tue 1/6

7:40 pm-8:05 am

2 stops9h 25m

$309

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 11/1

5:05 pm-9:00 pm

1 stop6h 55m

San Diego

Wed 11/5

8:40 am-8:40 pm

2 stops9h 00m

$312

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 11/13

2:55 pm-10:29 pm

2 stops10h 34m

San Diego

Mon 11/17

12:43 pm-10:52 pm

1 stop7h 09m

$338

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 10/2

2:50 pm-8:19 pm

1 stop8h 29m

San Diego

Mon 10/6

10:15 pm-9:43 am

1 stop8h 28m

$350

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 November, then departing from Buffalo during the month January is also very affordable. Most momondo users find prices during this month for around $396.

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 $438 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 $360 on momondo.

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

As of September 2025, prices for Buffalo to San Diego flights are approximately 15% more expensive 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.
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  • How far is Buffalo to San Diego by plane?

    There are 2181.7 mi between Buffalo and San Diego. Typically, this will take 6h 55m 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
3,172 reviews
Search Frontier flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
JetBluePriceFrom $259Free CancellationRating
7.2
2,912 reviews
Search JetBlue flights
DeltaPriceFrom $296Free CancellationRating
7.9
7,954 reviews
Search Delta flights
United AirlinesPriceFrom $340Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
SouthwestPriceFrom $346Free CancellationRating
8.0
4,242 reviews
Search Southwest 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
La Mesa
National City
Poway
Imperial Beach
San Ysidro
Borrego Springs
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.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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