Cheap flights from Buffalo to San Francisco from C$ 178

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SFO
7 Jan — 14 Jan1
1 adult
1 adult, Economy, 0 bags

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

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 8 December 2025.

Tue 23/123:20 p.m.BUF - SFO
1 stop11h 35mSouthwest
Sat 10/19:30 p.m.SFO - BUF
1 stop7h 35mSouthwest
Deal found 7/12C$ 477
Tue 23/123:20 p.m.BUF - SFO
1 stop11h 35mSouthwest
Tue 13/15:30 a.m.SFO - BUF
1 stop13h 30mSouthwest
Deal found 7/12C$ 485
Tue 23/123:20 p.m.BUF - SFO
1 stop11h 35mSouthwest
Mon 12/15:30 a.m.SFO - BUF
1 stop13h 30mSouthwest
Deal found 7/12C$ 493
Fri 19/126:00 a.m.BUF - SFO
1 stop9h 36mDelta
Thu 25/125:50 a.m.SFO - BUF
1 stop8h 22mDelta
Deal found 8/12C$ 568
Tue 23/125:35 p.m.BUF - SFO
1 stop10h 02mUnited Airlines
Wed 7/19:30 p.m.SFO - BUF
1 stop10h 19mUnited Airlines
Deal found 6/12C$ 591
Sat 20/126:10 a.m.BUF - SFO
1 stop8h 04mDelta
Thu 25/125:50 a.m.SFO - BUF
1 stop8h 22mDelta
Deal found 8/12C$ 595
Tue 23/125:35 p.m.BUF - SFO
1 stop9h 28mUnited Airlines
Wed 31/125:00 a.m.SFO - BUF
1 stop8h 54mUnited Airlines
Deal found 8/12C$ 600
Tue 23/126:10 a.m.BUF - SFO
1 stop7h 51mDelta
Tue 6/110:54 p.m.SFO - BUF
1 stop9h 33mDelta
Deal found 6/12C$ 605
Tue 23/126:10 a.m.BUF - SFO
1 stop7h 51mDelta
Thu 25/125:50 a.m.SFO - BUF
1 stop8h 22mDelta
Deal found 8/12C$ 609

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 8 December 2025.

Round-trip from

C$ 347

One-way from

C$ 178

Popular in

December

Cheapest in

January

Average price

C$ 659
Southwest
  • Southwest
  • 20/1-28/1
  • 2 total stops
  • 19h 35m total
  • Buffalo to San Francisco
Delta
  • Delta
  • 31/1
  • 1 total stop
  • 8h 41m total
  • Buffalo to San Francisco
Highest demand for flights based on searches. 4% potential increase in price (C$ 29 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 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

Sat 10/1

5:43 p.m.-11:25 p.m.

1 stop8h 42m

San Francisco

Mon 12/1

10:54 p.m.-11:27 a.m.

1 stop9h 33m

C$ 359

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 3/3

5:44 p.m.-10:57 p.m.

1 stop8h 13m

San Francisco

Wed 4/3

10:54 p.m.-9:47 a.m.

1 stop7h 53m

C$ 359

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 6/2

2:49 p.m.-10:57 p.m.

1 stop11h 08m

San Francisco

Sun 8/2

1:30 a.m.-2:14 p.m.

1 stop9h 44m

C$ 363

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 3/3

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

1 stop9h 15m

San Francisco

Wed 4/3

7:00 a.m.-6:33 p.m.

1 stop8h 33m

C$ 363

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 1/5

5:29 p.m.-12:54 a.m.

1 stop10h 25m

San Francisco

Mon 4/5

11:59 p.m.-11:29 a.m.

1 stop8h 30m

C$ 363

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 9/5

5:29 p.m.-12:54 a.m.

1 stop10h 25m

San Francisco

Fri 15/5

9:30 p.m.-9:39 a.m.

1 stop9h 09m

C$ 438

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 23/12

3:20 p.m.-11:55 p.m.

1 stop11h 35m

San Francisco

Sat 10/1

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

1 stop7h 35m

C$ 477

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 1/5

12:40 p.m.-7:55 p.m.

2 stops10h 15m

San Francisco

Mon 4/5

9:15 p.m.-7:50 a.m.

1 stop7h 35m

C$ 478

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 31/1

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

1 stop8h 41m

C$ 178

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 22/1

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

1 stop10h 34m

C$ 182

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 18 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 5 December 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$ 184). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 334). 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 8 December 2025.

It’s typically best to fly out from Buffalo to San Francisco in the evening. Doing so could potentially save you 16% on the flight price compared to flying at noon, which is usually more expensive.

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 December 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.

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

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.

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

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.

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

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.

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

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.

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

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.

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

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 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?

    Delta, United Airlines, and JetBlue can get you from Buffalo to San Francisco in just under 8h 42m. Your travel time can differ by up to 2h 26m. 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 Delta and United Airlines. Users have found that Frontier is 68% 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, January is the cheapest month in which you can book a flight from Buffalo to San Francisco (average of C$ 184). Flying from Buffalo to San Francisco in December is currently the most expensive (average of C$ 334). 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
Redwood City
Burlingame
South San Francisco
Scotts Valley
Novato
Santa Clara
Vallejo

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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 8 December 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 185AverageC$ 401FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapestC$ 191AverageC$ 440FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SouthwestCheapestC$ 257AverageC$ 487FlexibilityNo cancel feeOn-time63%
Search Southwest flights
American AirlinesCheapestC$ 340AverageC$ 384FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 382AverageC$ 584FlexibilityNo 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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