Find flights
When to book
Airlines
FAQs

Cheap flights from Buffalo to San Francisco from C$ 173

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 20/2. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SFO
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 8 January 2026.

Round-trip from

C$ 314

One-way from

C$ 173

Popular in

December

Cheapest in

January

Average price

C$ 362
United Airlines
  • United Airlines
  • 7/5-11/5
  • 2 total stops
  • 17h 00m total
  • Buffalo to San Francisco
Search Deals
Frontier
  • Frontier
  • 20/2
  • 1 total stop
  • 11h 10m total
  • Buffalo to San Francisco
Search Deals
High demand for flights, 1% potential price rise
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 January 2026
Search Deals

Find 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 8 January 2026.

Thu 7/57:00 a.m.BUF - SFO
1 stop9h 28mUnited Airlines
Mon 11/511:15 p.m.SFO - BUF
1 stop7h 32mUnited Airlines
Deal found 7/1C$ 314
Thu 16/48:00 p.m.BUF - SFO
1 stop7h 20mSouthwest
Mon 20/411:25 p.m.SFO - BUF
1 stop7h 55mSouthwest
Deal found 7/1C$ 319
Mon 9/33:55 p.m.BUF - SFO
1 stop10h 45mSouthwest
Mon 16/311:25 p.m.SFO - BUF
1 stop7h 45mSouthwest
Deal found 7/1C$ 351
Thu 26/26:15 a.m.BUF - SFO
1 stop7h 49mDelta
Mon 2/310:45 p.m.SFO - BUF
1 stop9h 58mDelta
Deal found 7/1C$ 354
Tue 14/48:56 a.m.BUF - SFO
1 stop8h 59mDelta
Tue 21/410:35 p.m.SFO - BUF
1 stop9h 26mDelta
Deal found 7/1C$ 355
Fri 17/44:59 p.m.BUF - SFO
1 stop10h 00mDelta
Tue 21/410:55 p.m.SFO - BUF
1 stop6h 21mDelta
Deal found 7/1C$ 359
Fri 17/44:59 p.m.BUF - SFO
1 stop10h 00mDelta
Sat 18/410:55 p.m.SFO - BUF
1 stop6h 21mDelta
Deal found 7/1C$ 364
Thu 16/44:00 p.m.BUF - SFO
1 stop10h 20mSouthwest
Tue 21/410:40 p.m.SFO - BUF
2 stops10h 35mSouthwest
Deal found 7/1C$ 365
Fri 20/23:50 p.m.BUF - SFO
1 stop10h 35mSouthwest
Mon 23/25:55 p.m.SFO - BUF
2 stops11h 10mSouthwest
Deal found 7/1C$ 366
Wed 18/37:00 p.m.BUF - SFO
1 stop7h 45mSouthwest
Sun 22/39:20 p.m.SFO - BUF
1 stop7h 30mSouthwest
Deal found 7/1C$ 372
Thu 5/33:55 p.m.BUF - SFO
1 stop10h 45mSouthwest
Sat 14/39:20 p.m.SFO - BUF
1 stop7h 30mSouthwest
Deal found 6/1C$ 383

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 8 January 2026.
Use the filters below to find and compare flights from Buffalo to San Francisco that are best for you.

Fly from

Buffalo

Fly to

San Francisco

Route

Depart

Return

Price

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 9/3

3:55 p.m.-11:40 p.m.

1 stop10h 45m

San Francisco

Mon 16/3

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

1 stop7h 45m

C$ 351

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 26/2

5:44 p.m.-11:25 p.m.

1 stop8h 41m

San Francisco

Mon 2/3

10:45 p.m.-11:43 a.m.

1 stop9h 58m

C$ 354

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 5/3

3:55 p.m.-11:40 p.m.

1 stop10h 45m

San Francisco

Sat 14/3

9:20 p.m.-7:50 a.m.

1 stop7h 30m

C$ 383

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 4/4

7:45 p.m.-12:20 a.m.

1 stop7h 35m

San Francisco

Wed 8/4

7:15 p.m.-7:50 a.m.

2 stops9h 35m

C$ 401

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 16/3

3:55 p.m.-11:40 p.m.

1 stop10h 45m

San Francisco

Fri 20/3

5:10 a.m.-3:15 p.m.

1 stop7h 05m

C$ 401

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 22/1

3:25 p.m.-10:59 p.m.

1 stop10h 34m

San Francisco

Mon 26/1

10:37 p.m.-9:36 a.m.

1 stop7h 59m

C$ 434

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 6/3

7:35 p.m.-12:05 a.m.

1 stop7h 30m

San Francisco

Sun 22/3

9:20 p.m.-7:50 a.m.

1 stop7h 30m

C$ 434

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 28/3

7:45 p.m.-12:20 a.m.

1 stop7h 35m

San Francisco

Sun 5/4

11:25 p.m.-10:30 a.m.

1 stop8h 05m

C$ 438

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 4/4

7:45 p.m.-12:20 a.m.

1 stop7h 35m

San Francisco

Sat 11/4

9:15 p.m.-8:15 a.m.

1 stop8h 00m

C$ 438

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 26/2

8:00 a.m.-2:15 p.m.

1 stop9h 15m

San Francisco

Mon 2/3

7:00 a.m.-6:35 p.m.

1 stop8h 35m

C$ 446

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 20 results
1
2

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?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to San Francisco. Price data was last updated on 2 January 2026.

To ensure you get the cheapest price possible for a flight from Buffalo to San Francisco, you should look to book at least 56 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, March is the cheapest month in which you can book a flight from Buffalo to San Francisco (average of C$ 203). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 333). 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.

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 8 January 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
4,250 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

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

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

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.
Delta
7.9
Good
8,025 reviews
Southwest
8.0
Very good
4,250 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

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.
United Airlines
7.4
Good
9,139 reviews
Southwest
8.0
Very good
4,250 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

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.
American Airlines
7.2
Good
11,095 reviews
Southwest
8.0
Very good
4,250 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

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.
Frontier
5.7
Fair
3,062 reviews
Southwest
8.0
Very good
4,250 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

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 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 41m. Your travel time can differ by up to 2h 04m. 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$ 154, was found to be the cheapest airline from Buffalo to San Francisco.Alternate airlines to your destination round-trip include United Airlines and Delta. Users have found that Frontier is 67% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Buffalo to San Francisco one-way?

    One-way options have recently been found by users for as low as C$ 165 on Frontier. Other airlines that offer cheap prices include Southwest from C$ 173 and Delta from C$ 190 one-way.

  • 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, March is the cheapest month in which you can book a flight from Buffalo to San Francisco (average of C$ 203). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 333). 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
Richmond
Newark
Burlingame
South San Francisco
Scotts Valley
Novato
Santa Clara
Vallejo

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Buffalo to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Buffalo to Las Vegas flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Los Angeles flights
Newark to San Francisco flights
Buffalo to Los Angeles flights
John F Kennedy Intl to San Francisco flights
Syracuse to Los Angeles flights
Buffalo to San Diego flights
Newark to Las Vegas flights
Buffalo to Palm Springs flights
Newark to Los Angeles flights
Plattsburgh to Las Vegas flights
Buffalo to Burbank flights
Newark to San Diego flights
Buffalo to Santa Ana flights
Plattsburgh to Los Angeles flights
Syracuse to Las Vegas flights
Buffalo to Fresno flights
Buffalo to San Jose flights
Buffalo to Santa Barbara flights
LaGuardia to Los Angeles flights
Buffalo to Reno flights

Top 5 airlines flying from Buffalo to San Francisco

Discover the top 5 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 8 January 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 185AverageC$ 401FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 191AverageC$ 440FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 246AverageC$ 568FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
SouthwestCheapestC$ 257AverageC$ 462FlexibilityNo cancel feeOn-time63%
Search Southwest flights
American AirlinesCheapestC$ 264AverageC$ 416FlexibilityNo cancel feeOn-time71%
Search American Airlines 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.