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Cheap flights from Buffalo to San Francisco from C$ 179

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 31/3. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SFO
28 Feb — 7 Mar1
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 29 January 2026.

Thu 18/67:00 a.m.
BUF
-
SFO
1 stop9h 29m
United Airlines
Tue 23/610:55 p.m.
SFO
-
BUF
1 stop7h 45m
United Airlines
Deal found 27/1C$ 352
Fri 25/94:30 p.m.
BUF
-
SFO
1 stop10h 32m
Delta
Mon 28/911:45 p.m.
SFO
-
BUF
1 stop8h 30m
Delta
Deal found 27/1C$ 357
Fri 6/36:00 a.m.
BUF
-
SFO
1 stop9h 57m
JetBlue
Mon 9/37:00 a.m.
SFO
-
BUF
1 stop8h 35m
JetBlue
Deal found 28/1C$ 358
Fri 10/48:00 p.m.
BUF
-
SFO
1 stop7h 20m
Southwest
Thu 16/411:25 p.m.
SFO
-
BUF
1 stop7h 50m
Southwest
Deal found 28/1C$ 388
Fri 10/46:15 a.m.
BUF
-
SFO
1 stop7h 30m
Delta
Fri 17/410:55 p.m.
SFO
-
BUF
1 stop9h 50m
Delta
Deal found 28/1C$ 395
Thu 26/26:15 a.m.
BUF
-
SFO
1 stop7h 49m
Delta
Mon 2/310:50 p.m.
SFO
-
BUF
1 stop9h 10m
Delta
Deal found 28/1C$ 399
Thu 26/210:25 a.m.
BUF
-
SFO
1 stop9h 31m
JetBlue
Mon 2/37:00 a.m.
SFO
-
BUF
1 stop8h 35m
JetBlue
Deal found 27/1C$ 407
Fri 10/46:15 a.m.
BUF
-
SFO
1 stop7h 30m
Delta
Thu 16/45:50 a.m.
SFO
-
BUF
1 stop6h 24m
Delta
Deal found 28/1C$ 433
Sun 15/22:19 p.m.
BUF
-
SFO
1 stop10h 20m
Frontier
Sun 22/210:46 p.m.
SFO
-
BUF
1 stop11h 07m
Frontier
Deal found 28/1C$ 436

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 29 January 2026.

Round-trip from

C$ 352

One-way from

C$ 179

Popular in

December

Cheapest in

January

Average price

C$ 356
United Airlines
  • United Airlines
  • 18/6-23/6
  • 2 total stops
  • 17h 14m total
  • Buffalo to San Francisco
Search Deals
Delta
  • Delta
  • 31/3
  • 1 total stop
  • 7h 30m total
  • Buffalo to San Francisco
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 29 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

Thu 18/6

7:00 a.m.-1:29 p.m.

1 stop9h 29m

San Francisco

Tue 23/6

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

1 stop7h 45m

C$ 352

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 5/6

5:47 p.m.-10:59 p.m.

1 stop8h 12m

San Francisco

Tue 9/6

5:05 a.m.-4:40 p.m.

1 stop8h 35m

C$ 357

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 10/4

8:00 p.m.-12:20 a.m.

1 stop7h 20m

San Francisco

Thu 16/4

11:25 p.m.-10:15 a.m.

1 stop7h 50m

C$ 388

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 10/4

6:15 a.m.-10:45 a.m.

1 stop7h 30m

San Francisco

Wed 15/4

10:55 p.m.-11:39 a.m.

1 stop9h 44m

C$ 395

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 26/2

6:15 a.m.-11:04 a.m.

1 stop7h 49m

San Francisco

Mon 2/3

10:50 p.m.-11:00 a.m.

1 stop9h 10m

C$ 399

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 26/2

10:25 a.m.-4:56 p.m.

1 stop9h 31m

San Francisco

Mon 2/3

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

1 stop8h 35m

C$ 407

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 27/4

12:50 p.m.-7:03 p.m.

1 stop9h 13m

San Francisco

Mon 4/5

11:39 p.m.-11:01 a.m.

1 stop8h 22m

C$ 409

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 10/4

6:15 a.m.-10:45 a.m.

1 stop7h 30m

San Francisco

Thu 16/4

5:50 a.m.-3:14 p.m.

1 stop6h 24m

C$ 433

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sun 15/2

2:19 p.m.-9:39 p.m.

1 stop10h 20m

San Francisco

Sun 22/2

10:46 p.m.-12:53 p.m.

1 stop11h 07m

C$ 436

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Wed 11/3

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

1 stop9h 15m

San Francisco

Tue 17/3

7:01 a.m.-8:53 p.m.

1 stop10h 52m

C$ 444

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

Showing 1-10 of 21 results
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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?

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 23 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$ 201). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 327). 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 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 29 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
4,267 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

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
4,267 reviews
Southwest
8.0
Very good
4,267 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

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.
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

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.
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

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.
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

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.
Frontier
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews
Check prices

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

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 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?

    United Airlines, Southwest, and Delta can get you from Buffalo to San Francisco in just under 7h 20m. Your travel time can differ by up to 2h 09m. 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$ 152, 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.

  • 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$ 201). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 327). 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

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Alternative routes for Buffalo to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 152AverageC$ 390FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapestC$ 164AverageC$ 558FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 186AverageC$ 432FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SouthwestCheapestC$ 222AverageC$ 410FlexibilityNo cancel feeOn-time63%
Search Southwest flights
American AirlinesCheapestC$ 259AverageC$ 409FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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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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