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Cheap flights from Buffalo to San Diego from C$ 177

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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SAN
3 Jan — 10 Jan1
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 December 2025.

Wed 24/121:50 p.m.BUF - SAN
1 stop12h 35mSouthwest
Fri 9/17:05 a.m.SAN - BUF
1 stop7h 00mSouthwest
Deal found 3/12C$ 631
Wed 24/122:50 p.m.BUF - SAN
2 stops11h 01mUnited Airlines
Fri 9/19:00 a.m.SAN - BUF
2 stops8h 29mUnited Airlines
Deal found 3/12C$ 652
Sat 20/125:05 p.m.BUF - SAN
1 stop8h 50mSouthwest
Tue 30/122:30 p.m.SAN - BUF
1 stop6h 25mSouthwest
Deal found 2/12C$ 735
Tue 16/125:40 p.m.BUF - SAN
2 stops19h 41mUnited Airlines
Sun 21/126:55 p.m.SAN - BUF
2 stops11h 51mUnited Airlines
Deal found 3/12C$ 888
Sat 20/126:30 a.m.BUF - SAN
2 stops14h 04mUnited Airlines
Fri 26/129:30 p.m.SAN - BUF
1 stop9h 21mUnited Airlines
Deal found 4/12C$ 924
Tue 30/126:29 p.m.BUF - SAN
1 stop8h 15mMultiple Airlines
Wed 31/129:40 p.m.SAN - BUF
1 stop9h 55mMultiple Airlines
Deal found 3/12C$ 1,056

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 December 2025.

Round-trip from

C$ 356

One-way from

C$ 170

Popular in

December

Cheapest in

October

Average price

C$ 860
United Airlines
  • United Airlines
  • 20/1-24/1
  • 4 total stops
  • 20h 14m total
  • Buffalo to San Diego
Search Deals
Southwest
  • Southwest
  • 6/1
  • 1 total stop
  • 12h 45m total
  • Buffalo to San Diego
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 2025.
Use the filters below to find and compare flights from Buffalo to San Diego that are best for you.

Fly from

Buffalo

Fly to

San Diego

Route

Depart

Return

Price

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 20/1

10:45 a.m.-5:28 p.m.

2 stops9h 43m

San Diego

Sat 24/1

9:00 a.m.-10:31 p.m.

2 stops10h 31m

C$ 356

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sat 17/1

9:55 a.m.-5:28 p.m.

2 stops10h 33m

San Diego

Thu 22/1

6:30 a.m.-7:25 p.m.

2 stops9h 55m

C$ 359

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/2

10:25 a.m.-8:20 p.m.

1 stop12h 55m

San Diego

Wed 4/2

9:00 p.m.-9:02 a.m.

1 stop9h 02m

C$ 375

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Thu 19/3

9:54 a.m.-7:17 p.m.

1 stop12h 23m

San Diego

Mon 23/3

9:00 p.m.-9:04 a.m.

1 stop9h 04m

C$ 375

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Sun 18/1

7:00 a.m.-2:18 p.m.

1 stop10h 18m

San Diego

Sun 25/1

9:00 p.m.-9:02 a.m.

1 stop9h 02m

C$ 375

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Fri 13/3

9:54 a.m.-7:17 p.m.

1 stop12h 23m

San Diego

Mon 16/3

9:00 p.m.-9:04 a.m.

1 stop9h 04m

C$ 375

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Mon 2/2

7:00 a.m.-2:18 p.m.

1 stop10h 18m

San Diego

Mon 16/2

9:00 p.m.-9:28 a.m.

1 stop9h 28m

C$ 430

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 7/1

1:59 p.m.-10:37 p.m.

2 stops11h 38m

San Diego

Fri 9/1

9:00 a.m.-8:29 p.m.

2 stops8h 29m

C$ 433

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Wed 4/3

7:00 a.m.-11:38 a.m.

1 stop7h 38m

San Diego

Thu 12/3

11:03 a.m.-11:10 p.m.

2 stops9h 07m

C$ 481

BuffaloSan Diego

BUF - SAN

BUFSAN

Buffalo

Tue 3/2

2:49 p.m.-8:47 p.m.

1 stop8h 58m

San Diego

Wed 4/2

9:00 a.m.-8:29 p.m.

2 stops8h 29m

C$ 486

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 19 results
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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?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to San Diego. Price data was last updated on 28 November 2025.

Booking 53 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, June is the cheapest month in which you can book a flight from Buffalo to San Diego (average of C$ 138). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 398). 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.

What is the cheapest time of day to fly from BUF to SAN?

Find hourly flight availability from Buffalo to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 December 2025.

When flying from Buffalo to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 51% versus a flight in the morning.

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 December 2025.
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
4,250 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 9h 43m. Fly via United Airlines or JetBlue 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$ 528, 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 12% 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, June is the cheapest month in which you can book a flight from Buffalo to San Diego (average of C$ 138). Flying from Buffalo to San Diego in December is currently the most expensive (average of C$ 398). 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 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 528AverageC$ 672FlexibilityNo cancel feeOn-time63%
Search Southwest flights

Fly with Cheapflights

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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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