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$139+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to San Francisco are usually found in November or August, booked 25 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 June 12, 2025.

Round-trip from

$247
(Southwest)

One-way from

$139
(Delta)

Popular in

December

Cheapest in

November

Average price

$367
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, 2% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:00 amBUF - SFO
1 stop7h 35mSouthwest
Mon 11/35:30 amSFO - BUF
1 stop6h 30mSouthwest
Deal found 6/11$247
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:54 pmBUF - SFO
1 stop7h 40mUnited Airlines
Wed 8/276:30 amSFO - BUF
1 stop7h 22mUnited Airlines
Deal found 6/11$251
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:25 amBUF - SFO
2 stops9h 31mAmerican Airlines
Wed 8/278:10 amSFO - BUF
1 stop10h 30mAmerican Airlines
Deal found 6/11$256
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:20 amBUF - SFO
1 stop7h 10mDelta
Fri 8/2211:35 amSFO - BUF
1 stop9h 22mDelta
Deal found 6/10$277
This JetBlue deal was found by Cheapflights users on 6/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:45 pmBUF - SFO
1 stop10h 29mJetBlue
Wed 11/58:40 amSFO - BUF
1 stop9h 45mJetBlue
Deal found 6/11$281
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/712:11 pmBUF - SFO
1 stop13h 45mSun Country Air
Sun 8/1011:59 pmSFO - BUF
1 stop7h 45mSun Country Air
Deal found 6/10$285
This Frontier deal was found by Cheapflights users on 6/10. 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.
Fri 8/294:55 pmBUF - SFO
1 stop10h 24mFrontier
Mon 9/16:26 amSFO - BUF
1 stop6h 34mFrontier
Deal found 6/10$301
This CheapOair deal was found by Cheapflights users on 6/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/302:10 pmBUF - SFO
1 stop13h 14mMultiple Airlines
Thu 7/3111:59 pmSFO - BUF
1 stop7h 39mMultiple Airlines
Deal found 6/11$389
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/285:30 amBUF - SFO
2 stops14h 04mAlaska Airlines
Sun 8/316:00 amSFO - BUF
2 stops14h 31mAlaska Airlines
Deal found 6/10$408

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 June 12, 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 8/19

5:54 pm-10:34 pm

1 stop7h 40m

San Francisco

Wed 8/27

6:30 am-4:52 pm

1 stop7h 22m

$251

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 8/19

6:25 am-12:56 pm

2 stops9h 31m

San Francisco

Wed 8/27

8:10 am-9:40 pm

1 stop10h 30m

$256

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 8/8

4:10 pm-11:20 pm

1 stop10h 10m

San Francisco

Tue 8/12

9:05 pm-8:05 am

1 stop8h 00m

$264

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Tue 8/19

6:20 am-10:30 am

1 stop7h 10m

San Francisco

Fri 8/22

11:35 am-11:57 pm

1 stop9h 22m

$277

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 9/4

3:55 pm-11:43 pm

1 stop10h 48m

San Francisco

Mon 9/8

8:25 pm-8:53 am

1 stop9h 28m

$281

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 8/7

12:11 pm-10:56 pm

1 stop13h 45m

San Francisco

Sun 8/10

11:59 pm-10:44 am

1 stop7h 45m

$285

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Sat 8/23

1:56 pm-9:03 pm

1 stop10h 07m

San Francisco

Mon 9/1

6:26 am-4:00 pm

1 stop6h 34m

$299

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Mon 6/30

2:10 pm-12:24 am

1 stop13h 14m

San Francisco

Thu 7/31

11:59 pm-10:38 am

1 stop7h 39m

$389

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Thu 8/28

5:30 am-4:34 pm

2 stops14h 04m

San Francisco

Sun 8/31

6:00 am-11:31 pm

2 stops14h 31m

$408

BuffaloSan Francisco

BUF - SFO

BUFSFO

Buffalo

Fri 7/25

7:24 pm-11:35 pm

1 stop7h 11m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 17 results
1
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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 June 9, 2025.

Booking 25 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 $364). 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 June 12, 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.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Our cheapest airline available from Buffalo to San Francisco is Southwest. Our recent data shows that you can find tickets from as low as $247 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $251 and $256 round-trip. You may be able to fly from Buffalo to San Francisco for 29% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $139. Users have also found prices from $158 and $178 on Sun Country Air and Frontier, respectively.

  • 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 $364). 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 Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$232FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$214Average$373FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$256Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$373FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$259Average$332FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$277Average$368FlexibilityNo cancel feeOn-time63%

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