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Cheap flights from Buffalo to San Diego from C$ 238

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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAN
2 Jun — 9 Jun1
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 3 May 2026.

Sun 22/114:59 p.m.
BUF
-
SAN
1 stop9h 04m
Delta
Tue 1/1210:30 p.m.
SAN
-
BUF
1 stop6h 59m
Delta
Deal found 30/4C$ 473
Mon 31/81:40 p.m.
BUF
-
SAN
1 stop9h 20m
Southwest
Sun 6/98:00 a.m.
SAN
-
BUF
1 stop8h 30m
Southwest
Deal found 28/4C$ 474
Tue 4/812:16 p.m.
BUF
-
SAN
1 stop7h 44m
Delta
Tue 11/86:20 a.m.
SAN
-
BUF
1 stop9h 23m
Delta
Deal found 28/4C$ 485
Fri 10/74:05 p.m.
BUF
-
SAN
1 stop10h 20m
Southwest
Wed 15/77:40 p.m.
SAN
-
BUF
2 stops9h 30m
Southwest
Deal found 29/4C$ 489
Thu 25/65:55 p.m.
BUF
-
SAN
1 stop8h 25m
Southwest
Sun 6/910:40 p.m.
SAN
-
BUF
1 stop9h 30m
Southwest
Deal found 29/4C$ 508
Thu 18/67:45 p.m.
BUF
-
SAN
1 stop6h 50m
Delta
Thu 25/610:15 p.m.
SAN
-
BUF
1 stop7h 08m
Delta
Deal found 28/4C$ 514
Tue 9/66:00 a.m.
BUF
-
SAN
1 stop8h 10m
Southwest
Mon 15/67:50 p.m.
SAN
-
BUF
2 stops9h 10m
Southwest
Deal found 29/4C$ 515
Sun 30/88:00 a.m.
BUF
-
SAN
2 stops14h 50m
Southwest
Sun 6/910:40 p.m.
SAN
-
BUF
1 stop9h 30m
Southwest
Deal found 29/4C$ 523

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 3 May 2026.

Round-trip from

C$ 474

One-way from

C$ 238

Popular in

December

Cheapest in

October

Average price

C$ 533
Southwest
  • Southwest
  • 31/8-6/9
  • 2 total stops
  • 17h 50m total
  • Buffalo to San Diego
Search Deals
Delta
  • Delta
  • 13/8
  • 1 total stop
  • 9h 14m total
  • Buffalo to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 3 May 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

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 26/5

7:00 a.m.-11:21 a.m.

1 stop7h 21m

San Diego

Sat 30/5

10:55 a.m.-10:58 p.m.

1 stop9h 03m

C$ 474

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 3/6

6:25 a.m.-10:23 a.m.

1 stop6h 58m

San Diego

Wed 10/6

1:02 p.m.-11:59 p.m.

1 stop7h 57m

C$ 474

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Mon 31/8

1:40 p.m.-8:00 p.m.

1 stop9h 20m

San Diego

Sun 6/9

8:00 a.m.-7:30 p.m.

1 stop8h 30m

C$ 474
Quickest round-trip

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 16/7

7:36 p.m.-11:30 p.m.

1 stop6h 54m

San Diego

Mon 20/7

2:40 p.m.-11:58 p.m.

1 stop6h 18m

C$ 474

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 2/6

4:55 p.m.-11:27 p.m.

1 stop9h 32m

San Diego

Wed 10/6

1:02 p.m.-11:59 p.m.

1 stop7h 57m

C$ 474

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 20/8

7:35 p.m.-11:19 p.m.

1 stop6h 44m

San Diego

Mon 24/8

6:15 a.m.-6:57 p.m.

1 stop9h 42m

C$ 474

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 30/7

2:50 p.m.-11:20 p.m.

1 stop11h 30m

San Diego

Fri 7/8

10:40 p.m.-9:55 a.m.

1 stop8h 15m

C$ 481

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 30/8

6:25 a.m.-10:46 a.m.

1 stop7h 21m

San Diego

Sun 6/9

10:30 p.m.-8:23 a.m.

1 stop6h 53m

C$ 485

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Mon 31/8

7:35 p.m.-11:19 p.m.

1 stop6h 44m

San Diego

Sun 6/9

10:30 p.m.-8:23 a.m.

1 stop6h 53m

C$ 485

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 26/5

6:15 a.m.-11:16 a.m.

1 stop8h 01m

San Diego

Thu 4/6

10:53 a.m.-11:59 p.m.

1 stop10h 06m

C$ 563

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 19 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 52 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$ 477). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 707). 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?

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 3 May 2026.
See what other customers who have flown with Southwest 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
4,310 reviews
Check prices

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,310 reviews
Southwest
8.0
Very good
4,310 reviews
Check prices

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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, United Airlines, 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 is the cheapest airline to fly from Buffalo to San Diego round-trip?

    Currently priced at C$ 403, Southwest will fly you from Buffalo to San Diego and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Southwest is priced at 25% 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$ 477). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 707). 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

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Top airline flying from Buffalo to San Diego

Discover the top airline 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 3 May 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 403AverageC$ 647FlexibilityNo 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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