Cheap flights from Buffalo to San Francisco from C$ 166

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SFO
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Buffalo to San Francisco are usually found in August or January, booked 56 days in advance, depart on a Wednesday or Saturday and return on a Monday

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 15 September 2025.

Round-trip from

C$ 218

One-way from

C$ 166

Popular in

December

Cheapest in

August

Average price

C$ 503
Frontier
  • Frontier
  • 3/10-5/10
  • 2 total stops
  • 16h 52m total
  • Buffalo to San Francisco
Frontier
  • Frontier
  • 2/10
  • 1 total stop
  • 12h 04m total
  • Buffalo to San Francisco
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find flight deals from Buffalo to San Francisco

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 15 September 2025.

Fri 3/104:57 p.m.BUF - SFO
1 stop10h 19mFrontier
Sun 5/106:29 a.m.SFO - BUF
1 stop6h 33mFrontier
Deal found 15/9C$ 218
Thu 2/1012:17 p.m.BUF - SFO
1 stop12h 04mFrontier
Sun 5/106:29 a.m.SFO - BUF
1 stop6h 33mFrontier
Deal found 15/9C$ 224
Fri 3/104:57 p.m.BUF - SFO
1 stop10h 19mFrontier
Mon 6/106:29 a.m.SFO - BUF
1 stop6h 34mFrontier
Deal found 13/9C$ 246
Thu 2/1012:17 p.m.BUF - SFO
1 stop12h 04mFrontier
Mon 6/106:29 a.m.SFO - BUF
1 stop6h 34mFrontier
Deal found 13/9C$ 290
Sat 18/101:02 p.m.BUF - SFO
1 stop11h 21mFrontier
Mon 27/106:34 a.m.SFO - BUF
1 stop6h 55mFrontier
Deal found 13/9C$ 298
Fri 17/105:24 p.m.BUF - SFO
1 stop9h 50mFrontier
Sun 26/108:21 p.m.SFO - BUF
1 stop17h 08mFrontier
Deal found 13/9C$ 320
Fri 17/105:24 p.m.BUF - SFO
1 stop9h 50mFrontier
Mon 20/106:34 a.m.SFO - BUF
1 stop6h 55mFrontier
Deal found 14/9C$ 322
Fri 10/105:24 p.m.BUF - SFO
1 stop9h 50mFrontier
Sun 19/108:21 p.m.SFO - BUF
1 stop17h 08mFrontier
Deal found 14/9C$ 332
Sat 18/101:02 p.m.BUF - SFO
1 stop11h 21mFrontier
Sat 25/1010:23 p.m.SFO - BUF
1 stop9h 56mFrontier
Deal found 13/9C$ 350
Thu 20/118:05 a.m.BUF - SFO
1 stop8h 15mSouthwest
Mon 24/115:15 a.m.SFO - BUF
1 stop11h 05mSouthwest
Deal found 14/9C$ 365

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 15 September 2025.
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 2/10

12:17 p.m.-9:21 p.m.

1 stop12h 04m

San Francisco

Sun 5/10

6:29 a.m.-4:02 p.m.

1 stop6h 33m

C$ 224

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 3/10

4:57 p.m.-12:16 a.m.

1 stop10h 19m

San Francisco

Sun 5/10

6:29 a.m.-4:02 p.m.

1 stop6h 33m

C$ 246

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 17/10

5:24 p.m.-12:14 a.m.

1 stop9h 50m

San Francisco

Mon 20/10

6:34 a.m.-4:29 p.m.

1 stop6h 55m

C$ 320

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 17/10

5:24 p.m.-12:14 a.m.

1 stop9h 50m

San Francisco

Mon 27/10

6:34 a.m.-4:29 p.m.

1 stop6h 55m

C$ 320

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 20/11

8:05 a.m.-1:20 p.m.

1 stop8h 15m

San Francisco

Mon 24/11

5:15 a.m.-7:20 p.m.

1 stop11h 05m

C$ 365

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Wed 15/10

5:31 p.m.-12:59 a.m.

1 stop10h 28m

San Francisco

Mon 20/10

9:00 p.m.-8:59 a.m.

1 stop8h 59m

C$ 399

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 24/2

12:45 p.m.-10:49 p.m.

1 stop13h 04m

San Francisco

Thu 26/2

9:35 p.m.-8:29 a.m.

1 stop7h 54m

C$ 399

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 15/12

6:15 a.m.-11:00 a.m.

1 stop7h 45m

San Francisco

Mon 26/1

9:30 p.m.-8:05 a.m.

1 stop7h 35m

C$ 399

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 11/12

8:05 a.m.-1:20 p.m.

1 stop8h 15m

San Francisco

Mon 15/12

10:35 a.m.-9:05 p.m.

1 stop7h 30m

C$ 399

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 9/1

5:50 a.m.-1:25 p.m.

1 stop10h 35m

San Francisco

Mon 12/1

9:30 p.m.-8:05 a.m.

1 stop7h 35m

C$ 399

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/9

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 12 September 2025.

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, January is the cheapest month in which you can book a flight from Buffalo to San Francisco (average of C$ 276). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 368). 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 15 September 2025.

It’s typically best to fly out from Buffalo to San Francisco in the evening. Doing so could potentially save you 17% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Buffalo to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to San Francisco. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Buffalo to San Francisco flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 15 September 2025.
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.

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

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.

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

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.
8.0
Very good

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

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.

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

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.

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

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.

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

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?

    Frontier can get you from Buffalo to San Francisco in just under 12h 04m. Your travel time can differ by up to . Airlines will cover a distance of 3705 km.

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

    Delta, at C$ 192, was found to be the cheapest airline from Buffalo to San Francisco.Alternate airlines to your destination round-trip include Frontier and Southwest. Users have found that Delta is 60% 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$ 166 on Frontier. Other airlines that offer cheap prices include Southwest from C$ 181 and Delta from C$ 192 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, January is the cheapest month in which you can book a flight from Buffalo to San Francisco (average of C$ 276). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 368). 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
Alameda
Redwood City
Burlingame
San Bruno
South San Francisco
Scotts Valley
Belmont
Novato
Millbrae
Santa Clara
Vallejo

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Buffalo to San Francisco

Discover the top 6 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 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 192AverageC$ 454FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 203AverageC$ 401FlexibilityNo cancel feeOn-time62%
Search Frontier flights
SouthwestCheapestC$ 277AverageC$ 510FlexibilityNo cancel feeOn-time63%
Search Southwest flights
American AirlinesCheapestC$ 314AverageC$ 384FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
JetBlueCheapestC$ 356AverageC$ 439FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapestC$ 474AverageC$ 733FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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.

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