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$131+ Cheap flights from Buffalo to San Francisco (BUF - SFO)

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SFO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to San Francisco are usually found in January or September, booked 56 days in advance, depart on a Friday or Thursday and return on a Tuesday

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 September 11, 2025.

Round-trip from

$157
(Southwest)

One-way from

$131
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$329
From Buffalo to San Francisco
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One-way flight from Buffalo to San Francisco
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:10 amBUF - SFO
1 stop9h 20mSouthwest
Tue 11/46:10 amSFO - BUF
1 stop6h 40mSouthwest
Deal found 9/9$157
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:17 pmBUF - SFO
1 stop12h 04mFrontier
Mon 9/296:29 amSFO - BUF
1 stop6h 34mFrontier
Deal found 9/10$172
This Frontier deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/181:02 pmBUF - SFO
1 stop11h 21mFrontier
Fri 10/2410:23 pmSFO - BUF
1 stop10h 13mFrontier
Deal found 9/8$178
This Priceline deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:17 pmBUF - SFO
1 stop12h 04mFrontier
Mon 10/66:29 amSFO - BUF
1 stop6h 34mFrontier
Deal found 9/11$190
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:15 amBUF - SFO
1 stop7h 45mSouthwest
Tue 11/189:25 pmSFO - BUF
1 stop7h 50mSouthwest
Deal found 9/9$201
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:17 pmBUF - SFO
1 stop12h 04mFrontier
Sun 9/286:29 amSFO - BUF
1 stop6h 33mFrontier
Deal found 9/11$204
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:17 pmBUF - SFO
1 stop12h 04mFrontier
Sat 10/411:00 pmSFO - BUF
1 stop9h 22mFrontier
Deal found 9/11$209
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:15 amBUF - SFO
1 stop7h 45mSouthwest
Sat 12/69:25 pmSFO - BUF
1 stop7h 30mSouthwest
Deal found 9/10$211
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:58 pmBUF - SFO
1 stop10h 18mFrontier
Mon 9/296:29 amSFO - BUF
1 stop6h 34mFrontier
Deal found 9/11$217

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 2,558,603 searches. Data last updated September 11, 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

Tue 10/28

4:15 pm-11:05 pm

2 stops9h 50m

San Francisco

Tue 11/4

6:10 am-3:50 pm

1 stop6h 40m

$188

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 9/22

4:58 pm-12:16 am

1 stop10h 18m

San Francisco

Fri 9/26

10:11 pm-4:02 pm

2 stops38h 51m

$259

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Wed 11/26

5:45 am-10:10 am

1 stop7h 25m

San Francisco

Thu 12/4

9:25 pm-8:15 am

1 stop7h 50m

$264

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Wed 10/1

6:15 am-10:40 am

1 stop7h 25m

San Francisco

Sun 10/5

11:00 pm-8:23 am

1 stop6h 23m

$276

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 11/6

5:40 pm-11:59 pm

1 stop9h 19m

San Francisco

Sun 11/9

7:00 am-4:48 pm

1 stop6h 48m

$277

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 10/14

6:20 am-10:33 am

1 stop7h 13m

San Francisco

Tue 10/21

6:10 am-6:25 pm

1 stop9h 15m

$277

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 9/22

4:58 pm-9:21 pm

2 stops31h 23m

San Francisco

Mon 9/29

6:29 am-4:03 pm

1 stop6h 34m

$280

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Wed 10/15

3:55 pm-12:59 am

1 stop12h 04m

San Francisco

Mon 10/20

9:00 pm-8:59 am

1 stop8h 59m

$290

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Wed 10/15

7:45 pm-12:55 am

1 stop8h 10m

San Francisco

Mon 10/20

11:33 pm-9:53 am

1 stop7h 20m

$290

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 12/9

12:00 pm-8:06 pm

1 stop11h 06m

San Francisco

Sun 12/14

10:32 pm-11:15 am

1 stop9h 43m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

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 August 29, 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $276). Flying from Buffalo to San Francisco in June is currently the most expensive (average of $357). 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 September 11, 2025.

It’s typically best to fly out from Buffalo to San Francisco in the evening. Doing so could potentially save you 23% on the flight price compared to flying in the morning, 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 December 16, 2024.

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

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 September 11, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Buffalo to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

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?

    A quick flight from Buffalo to San Francisco can take about 7h 25m. Southwest provides one of the quickest options available for as low as $276. There are 2302 mi between Buffalo and San Francisco. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Buffalo to San Francisco is Frontier. Our recent data shows that you can find tickets from as low as $168 on this airline. Additional options worth looking into are American Airlines and Southwest, starting at $203 and $228 round-trip. You may be able to fly from Buffalo to San Francisco for 52% less than the average price by searching for these airlines.

  • 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 $276). Flying from Buffalo to San Francisco in June is currently the most expensive (average of $357). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Manteca
Santa Clara
Sunnyvale
Hollister
Vacaville
Foster City
Vallejo
Burlingame
Redwood City
Union City
San Leandro
San Mateo
Lathrop

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Alternative routes for Buffalo to San Francisco

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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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$248FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$203Average$371FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$228Average$364FlexibilityNo cancel feeOn-time63%
DeltaCheapest$256Average$375FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$259Average$320FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$260Average$395FlexibilityNo cancel feeOn-time69%

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