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Cheap flights from Buffalo to San Francisco from C$ 241

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SFO
3 Jul — 10 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to San Francisco
Explore the most affordable flight options available from Buffalo to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 June 2026.

Wed 26/87:59 p.m.
BUF
-
SFO
1 stop8h 00m
United Airlines
Tue 1/910:35 p.m.
SFO
-
BUF
1 stop7h 53m
United Airlines
Deal found 31/5C$ 370
Sat 29/812:29 p.m.
BUF
-
SFO
1 stop9h 56m
Frontier
Tue 1/910:15 p.m.
SFO
-
BUF
1 stop12h 40m
Frontier
Deal found 2/6C$ 388
Thu 2/711:35 a.m.
BUF
-
SFO
1 stop10h 51m
Frontier
Wed 29/711:00 p.m.
SFO
-
BUF
1 stop8h 29m
Frontier
Deal found 2/6C$ 400
Tue 8/96:00 a.m.
BUF
-
SFO
1 stop8h 35m
Southwest
Tue 22/911:40 p.m.
SFO
-
BUF
1 stop8h 40m
Southwest
Deal found 29/5C$ 414
Wed 19/84:49 p.m.
BUF
-
SFO
1 stop8h 51m
American Airlines
Mon 31/85:05 a.m.
SFO
-
BUF
1 stop7h 54m
American Airlines
Deal found 1/6C$ 425
Thu 6/811:29 a.m.
BUF
-
SFO
1 stop10h 44m
Frontier
Tue 11/810:10 p.m.
SFO
-
BUF
1 stop12h 43m
Frontier
Deal found 2/6C$ 441
Tue 30/611:50 a.m.
BUF
-
SFO
1 stop11h 05m
Frontier
Sun 5/710:10 p.m.
SFO
-
BUF
1 stop12h 43m
Frontier
Deal found 2/6C$ 451
Thu 6/811:29 a.m.
BUF
-
SFO
1 stop10h 44m
Frontier
Mon 10/811:00 p.m.
SFO
-
BUF
1 stop8h 29m
Frontier
Deal found 2/6C$ 459
Fri 28/812:02 p.m.
BUF
-
SFO
1 stop9h 11m
Delta
Wed 2/911:35 a.m.
SFO
-
BUF
1 stop8h 34m
Delta
Deal found 1/6C$ 477

Find flight deals from Buffalo to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to San Francisco (SFO). 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 June 2026.

Round-trip from

C$ 370

One-way from

C$ 241

Popular in

March

Cheapest in

January

Average price

C$ 537
United Airlines
  • United Airlines
  • 26/8-1/9
  • 2 total stops
  • 15h 53m total
  • Buffalo to San Francisco
Search Deals
Southwest
  • Southwest
  • 28/9
  • 1 total stop
  • 10h 20m total
  • Buffalo to San Francisco
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to San Francisco 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 June 2026.
Use the filters below to find and compare flights from Buffalo to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 8/9

3:55 p.m.-10:20 p.m.

1 stop9h 25m

San Francisco

Tue 22/9

7:40 a.m.-9:05 p.m.

2 stops10h 25m

C$ 422
Quickest round-trip

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 29/8

8:57 a.m.-2:27 p.m.

1 stop8h 30m

San Francisco

Tue 1/9

11:34 a.m.-11:59 p.m.

1 stop9h 25m

C$ 425

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 27/8

12:02 p.m.-6:13 p.m.

1 stop9h 11m

San Francisco

Mon 31/8

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

1 stop10h 01m

C$ 480

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Wed 19/8

3:00 p.m.-10:05 p.m.

2 stops10h 05m

San Francisco

Mon 31/8

11:40 p.m.-11:20 a.m.

1 stop8h 40m

C$ 529

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 17/7

7:36 p.m.-8:21 a.m.

2 stops15h 45m

San Francisco

Sun 19/7

8:05 p.m.-6:24 p.m.

2 stops19h 19m

C$ 573

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 2/7

7:55 p.m.-12:10 a.m.

1 stop7h 15m

San Francisco

Wed 29/7

8:55 a.m.-10:45 p.m.

2 stops10h 50m

C$ 621

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 2/7

6:05 a.m.-1:55 p.m.

2 stops10h 50m

San Francisco

Mon 6/7

11:40 p.m.-10:25 a.m.

1 stop7h 45m

C$ 650

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 18/7

4:50 p.m.-10:25 p.m.

1 stop8h 35m

San Francisco

Wed 22/7

11:40 p.m.-2:15 p.m.

2 stops11h 35m

C$ 667

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 16/7

4:10 p.m.-11:30 p.m.

2 stops10h 20m

San Francisco

Sat 18/7

10:10 a.m.-11:15 p.m.

2 stops10h 05m

C$ 698

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 29/6

7:35 a.m.-1:55 p.m.

2 stops9h 20m

San Francisco

Mon 6/7

11:00 a.m.-12:15 a.m.

2 stops10h 15m

C$ 716

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/5

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Buffalo to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco 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 Francisco

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

To ensure you get the cheapest price possible for a flight from Buffalo to San Francisco, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Buffalo to San Francisco (average of C$ 363). Flying from Buffalo to San Francisco in March is currently the most expensive (average of C$ 554). 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 SFO?

Find hourly flight availability from Buffalo to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 June 2026.

When flying from Buffalo to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 Francisco. Reviews last updated 3 June 2026.
Get a feel of what it's like to fly with Southwest,Delta, andAmerican Airlines from Buffalo to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,255 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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
4,255 reviews
Southwest
8.0
Very good
4,255 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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!
Delta
7.9
Good
8,398 reviews
Southwest
8.0
Very good
4,255 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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
11,642 reviews
Southwest
8.0
Very good
4,255 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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!
Frontier
5.6
Fair
2,920 reviews
Southwest
8.0
Very good
4,255 reviews
Check prices

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

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 Francisco. 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 Francisco?

    Southwest and Delta can get you from Buffalo to San Francisco in just under 8h 30m. Your travel time can differ by up to 55m. Airlines will cover a distance of 3705 km. This flight may include one or multiple stops.

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

    Frontier, at C$ 156, was found to be the cheapest airline from Buffalo to San Francisco.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that Frontier is 67% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo to San Francisco 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 Francisco?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to San Francisco (average of C$ 363). Flying from Buffalo to San Francisco in March is currently the most expensive (average of C$ 554). 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 Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Burlingame
San Bruno
Roseville
Livermore
South San Francisco
Novato
Santa Clara
Vallejo

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Buffalo to San Francisco

Discover the top 4 airlines that operate flights from Buffalo to San Francisco. 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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 156AverageC$ 387FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 190AverageC$ 497FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 216AverageC$ 363FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
SouthwestCheapestC$ 257AverageC$ 407FlexibilityNo 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 Francisco?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from Buffalo today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Buffalo to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to San Francisco from Buffalo? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Buffalo to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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