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Cheap flights from Buffalo to San Diego from C$ 187

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAN
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to San Diego
Explore the most affordable flight options available from Buffalo to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Sat 5/95:15 p.m.
BUF
-
SAN
1 stop9h 00m
Southwest
Fri 11/910:40 p.m.
SAN
-
BUF
1 stop8h 15m
Southwest
Deal found 31/7C$ 445
Sat 29/87:00 a.m.
BUF
-
SAN
1 stop10h 14m
American Airlines
Sat 5/910:30 p.m.
SAN
-
BUF
1 stop9h 11m
American Airlines
Deal found 30/7C$ 449
Sat 5/910:30 a.m.
BUF
-
SAN
2 stops9h 30m
United Airlines
Fri 11/910:30 p.m.
SAN
-
BUF
1 stop7h 38m
United Airlines
Deal found 3/8C$ 452
Wed 23/93:53 p.m.
BUF
-
SAN
1 stop10h 41m
Delta
Tue 29/912:52 p.m.
SAN
-
BUF
1 stop8h 00m
Delta
Deal found 30/7C$ 453
Fri 30/103:53 p.m.
BUF
-
SAN
1 stop10h 53m
Delta
Mon 2/1110:30 p.m.
SAN
-
BUF
1 stop9h 46m
Delta
Deal found 30/7C$ 456
Thu 12/113:59 p.m.
BUF
-
SAN
1 stop11h 00m
Delta
Sun 22/1110:00 p.m.
SAN
-
BUF
1 stop7h 20m
Delta
Deal found 4/8C$ 459
Mon 12/106:50 a.m.
BUF
-
SAN
1 stop15h 05m
Southwest
Mon 12/109:50 p.m.
SAN
-
BUF
1 stop7h 35m
Southwest
Deal found 30/7C$ 460
Fri 9/106:50 a.m.
BUF
-
SAN
1 stop15h 05m
Southwest
Tue 13/1010:40 p.m.
SAN
-
BUF
1 stop8h 45m
Southwest
Deal found 30/7C$ 463
Tue 15/129:10 a.m.
BUF
-
SAN
1 stop8h 20m
Southwest
Tue 5/18:05 p.m.
SAN
-
BUF
2 stops9h 00m
Southwest
Deal found 2/8C$ 466
Thu 22/104:50 p.m.
BUF
-
SAN
2 stops9h 25m
Southwest
Mon 26/108:00 p.m.
SAN
-
BUF
2 stops9h 25m
Southwest
Deal found 30/7C$ 467
Mon 12/106:50 a.m.
BUF
-
SAN
1 stop15h 05m
Southwest
Thu 15/1010:40 p.m.
SAN
-
BUF
2 stops10h 20m
Southwest
Deal found 30/7C$ 469

Find flight deals from Buffalo to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 August 2026.

Round-trip from

C$ 445

One-way from

C$ 187

Popular in

December

Cheapest in

October

Average price

C$ 542
Southwest
  • Southwest
  • 5/9-11/9
  • 2 total stops
  • 17h 15m total
  • Buffalo to San Diego
Search Deals
Frontier
  • Frontier
  • 28/9
  • 2 total stops
  • 29h 19m total
  • Buffalo to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 4 August 2026.
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

Cheapest round-trip
Quickest round-trip

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 13/9

6:20 a.m.-10:18 a.m.

1 stop6h 58m

San Diego

Sun 20/9

10:20 p.m.-8:24 a.m.

1 stop7h 04m

C$ 459

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Fri 9/10

6:50 a.m.-6:55 p.m.

1 stop15h 05m

San Diego

Tue 13/10

3:25 p.m.-12:25 a.m.

1 stop6h 00m

C$ 466

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 24/12

5:00 p.m.-11:05 p.m.

1 stop9h 05m

San Diego

Wed 30/12

6:30 a.m.-6:00 p.m.

1 stop8h 30m

C$ 473

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 11/10

7:00 p.m.-12:30 a.m.

1 stop8h 30m

San Diego

Mon 19/10

9:50 p.m.-8:25 a.m.

1 stop7h 35m

C$ 496

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 5/9

4:35 p.m.-11:15 p.m.

2 stops9h 40m

San Diego

Fri 11/9

10:10 a.m.-9:55 p.m.

2 stops8h 45m

C$ 503

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 11/10

7:00 p.m.-12:30 a.m.

1 stop8h 30m

San Diego

Sun 18/10

10:40 p.m.-10:25 a.m.

1 stop8h 45m

C$ 532

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 7/11

12:10 p.m.-8:20 p.m.

1 stop11h 10m

San Diego

Mon 9/11

9:30 p.m.-8:27 a.m.

1 stop7h 57m

C$ 535

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 17/12

12:00 p.m.-5:59 p.m.

1 stop8h 59m

San Diego

Fri 18/12

12:50 p.m.-11:59 p.m.

1 stop8h 09m

C$ 566

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 16/12

5:55 a.m.-10:50 a.m.

1 stop7h 55m

San Diego

Fri 18/12

10:30 a.m.-9:50 p.m.

1 stop8h 20m

C$ 599
Cheapest one-way

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 5/12

6:00 a.m.-10:24 a.m.

1 stop7h 24m

C$ 230

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Buffalo to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Buffalo to San Diego?

Currently, October is the cheapest month in which you can book a flight from Buffalo to San Diego (average of C$ 493). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 772). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Buffalo to San Diego?

Airfare is below average for this route at the moment.

Buffalo to San Diego flights typically cost between C$ 491 and C$ 640 in September.
The cheapest round-trip price found within the last 5 days was C$ 445 on Southwest (5 Sep-11 Sep).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated 4 August 2026.
See what other customers who have flown with Southwest and American Airlines from Buffalo to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,222 reviews
Check prices

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Southwest
8.0
Very good
4,222 reviews
Southwest
8.0
Very good
4,222 reviews
Check prices

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
American Airlines
7.1
Good
11,850 reviews
Southwest
8.0
Very good
4,222 reviews
Check prices

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Related info for your journey

Find useful and relevant information for your journey from Buffalo to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buffalo to San Diego?

    There are many flights that can get you from Buffalo to San Diego in 6h 58m. Fly via Delta or Southwest to get the fastest option. The distance from Buffalo to San Diego is about 3526 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Buffalo to San Diego round-trip?

    Currently priced at C$ 312, American Airlines will fly you from Buffalo to San Diego and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Southwest for as low as C$ 416. American Airlines is priced at 45% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Buffalo to San Diego that include hotel bookings?

    Yes. In addition to deals on Buffalo to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to San Diego.

  • Can I find deals for business class flights from Buffalo to San Diego?

    Yes. Cheapflights offers flight deals from Buffalo to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, October is the cheapest month in which you can book a flight from Buffalo to San Diego (average of C$ 493). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 772). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
La Mesa
Borrego Springs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Buffalo to San Diego

Discover the top 2 airlines that operate flights from Buffalo to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 4 August 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 312AverageC$ 500FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
SouthwestCheapestC$ 416AverageC$ 615FlexibilityNo cancel feeOn-time63%
Search Southwest flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to San Diego?

When you search for this flight from Buffalo to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to San Diego?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Buffalo to San Diego.

Can Cheapflights find flights from Buffalo to San Diego with no change fees?

Yes, we can. To see specific flights from Buffalo to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Buffalo to San Diego become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Buffalo today and book when prices fit your budget.

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