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£56+ Cheap flights from San Francisco

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SFO — LHR
7 Jul — 14 Jul1
1 adult

What to know about flights from San Francisco

Discover essential information about flights departing from San Francisco, including flight schedules, destinations, airlines operating at the San Francisco airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 2 July 2025.

Cheapest one-way flight

£35

Cheapest round-trip flight

£103

Cheapest airline

Frontier

Most popular destination

London Heathrow (LHR)

Good round-trip deal

£65 or less

Good one-way deal

£57 or less
The cheapest one-way flight from San Francisco is currently to Las Vegas Harry Reid Intl.
The cheapest round-trip flight from San Francisco is currently to Portland.
On average, Frontier currently has the cheapest one-way flight from San Francisco (avg. price of £66).
London Heathrow (LHR) is currently the most popular flight destination from San Francisco (average return price of £345).
Price to beat on a round-trip flight from San Francisco.
Price to beat on a one-way flight from San Francisco.

Find flights from San Francisco

Cheapest flights from San Francisco
Explore the most affordable flight options available from San Francisco. Find the lowest fares based on data from user searches, with prices last updated on 2 July 2025.

Tue 19/807:20SFO - DCA
1 stop10h 39mHawaiian Airlines
Wed 27/818:59DCA - SFO
Nonstop5h 51mHawaiian Airlines
Deal found 30/6£209
Wed 13/823:40SFO - DCA
1 stop8h 19mJetBlue
Sun 17/818:50DCA - SFO
1 stop9h 08mJetBlue
Deal found 30/6£215
Tue 12/807:20SFO - DCA
1 stop10h 39mAlaska Airlines
Wed 13/809:59DCA - SFO
1 stop9h 09mAlaska Airlines
Deal found 30/6£215
Wed 13/805:55SFO - DCA
2 stops9h 20mSouthwest
Wed 20/811:55DCA - SFO
1 stop9h 30mSouthwest
Deal found 30/6£220
Sat 16/800:30SFO - DCA
1 stop8h 16mUnited Airlines
Sat 23/807:00DCA - SFO
Nonstop5h 50mUnited Airlines
Deal found 2/7£220
Thu 14/806:37SFO - DCA
1 stop12h 20mFrontier
Sat 16/807:00DCA - SFO
2 stops15h 39mFrontier
Deal found 30/6£221
Tue 12/805:50SFO - DCA
1 stop7h 43mDelta
Thu 14/818:55DCA - SFO
1 stop8h 00mDelta
Deal found 2/7£223
Tue 12/817:45SFO - GLA
1 stop16h 45mMultiple Airlines
Tue 26/807:35GLA - SFO
1 stop16h 20mMultiple Airlines
Deal found 1/7£330
Wed 1/1008:30SFO - LTN
2 stops19h 50mMultiple Airlines
Wed 8/1018:25LTN - SFO
2 stops26h 15mMultiple Airlines
Deal found 2/7£423
Tue 9/912:07SFO - LCY
2 stops20h 33mVirgin Atlantic
Tue 23/907:45LCY - SFO
2 stops20h 03mVirgin Atlantic
Deal found 1/7£426
Mon 1/1219:25SFO - LGW
1 stop14h 25mSWISS
Mon 22/1218:40LGW - SFO
1 stop29h 45mSWISS
Deal found 2/7£426
Wed 20/816:30SFO - LHR
Nonstop10h 25mBritish Airways
Tue 23/910:45LHR - SFO
Nonstop11h 05mBritish Airways
Deal found 2/7£426

Find flights from San Francisco within your budget

Find flights departing from San Francisco that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 2 July 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Tue 19/8

07:20-20:59

1 stop10h 39m

Washington, D.C. Reagan-National

Wed 27/8

18:59-21:50

Nonstop5h 51m

£209

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Wed 13/8

23:40-10:59

1 stop8h 19m

Washington, D.C. Reagan-National

Sun 17/8

18:50-00:58

1 stop9h 08m

£215

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Tue 12/8

07:20-20:59

1 stop10h 39m

Washington, D.C. Reagan-National

Wed 13/8

09:59-16:08

1 stop9h 09m

£215

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Wed 13/8

23:59-11:20

1 stop8h 21m

Washington, D.C. Reagan-National

Tue 19/8

06:00-10:30

1 stop7h 30m

£216

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Wed 13/8

05:55-18:15

2 stops9h 20m

Washington, D.C. Reagan-National

Wed 20/8

11:55-18:25

1 stop9h 30m

£220

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Sat 16/8

00:30-11:46

1 stop8h 16m

Washington, D.C. Reagan-National

Sat 23/8

07:00-09:50

Nonstop5h 50m

£220

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Thu 14/8

06:37-21:57

1 stop12h 20m

Washington, D.C. Reagan-National

Sat 16/8

07:00-19:39

2 stops15h 39m

£221

San FranciscoGlasgow

SFO - GLA

SFOGLA

San Francisco

Tue 12/8

17:45-18:30

1 stop16h 45m

Glasgow Intl

Tue 26/8

07:35-15:55

1 stop16h 20m

£330

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 28/7

12:55-17:50

2 stops20h 55m

London Gatwick

Mon 25/8

18:35-16:10

1 stop29h 35m

£423

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sun 27/7

11:20-10:55

1 stop15h 35m

London Gatwick

Thu 28/8

10:45-23:59

1 stop21h 14m

£423

Flights are sorted by cheapest return flights first.

Deals found on 30/6

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Best time to book a flight from San Francisco

Have a flexible travel schedule? Discover the best time to fly from San Francisco with our price prediction graph.
Estimated return 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.

Travel insights for flights from San Francisco

Get recent, data-driven insights about flights from San Francisco including ideal travel times, pricing trends, and more.

When is the best time to book a flight from San Francisco?

Use this chart to determine the optimal time to book a return flight from San Francisco to Heathrow. Price data was last updated on 27 June 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from 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 San Francisco?

Currently, January is the cheapest month in which you can book a flight from San Francisco (average of £382). Flying from San Francisco in June will prove the most costly (average of £589). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from San Francisco?

Use this chart to determine the cheapest time to fly return from San Francisco to Heathrow. Price data was last updated on 29 June 2025.

Those who are seeking the cheapest fare on flights departing from San Francisco would be wise to consider leaving during Sunday at midday when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Monday mornings when fares are usually the most expensive.

Airline reviews for flights from San Francisco

Get insights into the airlines that provide service from 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 airline for your flight from San Francisco. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Check out reviews from past customers who have flown Delta, KLM, andAustrian Airlines from San Francisco to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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Related info for your journey

Access useful and relevant information related to your journey from San Francisco. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 2 July 2025.
  • What are the most popular destinations to fly to from San Francisco?

    This month, the top selected destinations from San Francisco are Boston, Bengaluru, Mumbai. Throughout the year, Mumbai, Bengaluru, Boston are some of the top choices made by users flying from San Francisco.

  • What is the cheapest flight from San Francisco to anywhere?

    Users have flown out of San Francisco for as low as £29 to San Diego (prices may vary depending on the airline and departure time). On average, users have booked flights for £539 to fly from San Francisco.

  • What are the cheapest airlines flying from San Francisco to anywhere?

    Over the past few days, we've found that Frontier, Hawaiian Airlines, and Alaska Airlines have the cheapest prices from San Francisco. Frontier flights from San Francisco to Denver Intl (£14), Hawaiian Airlines flights from San Francisco to Burbank Bob Hope (£35), and Alaska Airlines flights from San Francisco to Honolulu (£39).

  • What is the cheapest premium economy flight from San Francisco?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from San Francisco.
    San Francisco to Las Vegas from £242
    San Francisco to Dallas/Fort Worth Airport from £469
    San Francisco to Salt Lake City from £479
    San Francisco to Detroit Metropolitan Wayne County Airport from £616

  • What is the cheapest first class flight from San Francisco?

    If you’re looking for a cheap first-class flight from San Francisco, consider Palm Springs. Prices start at £281 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from San Francisco?

    At the present moment the cheapest month to fly from San Francisco is currently January; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from San Francisco?

    Check out the cheapest flights from San Francisco to embark to:
    Travel from San Francisco to London from £296 round trip
    Travel from San Francisco to Edinburgh from £420 round trip

  • How does Cheapflights help users find flights from San Francisco?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from San Francisco?

    Cheapflights helps you find that perfect flight from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

  • Can Cheapflights find flights from San Francisco with no change fees?

    Certainly. Search results for flights from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from San Francisco become cheaper?

    Yes! Start tracking prices for flights from San Francisco today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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How does Cheapflights help users find flights from San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Francisco?

Cheapflights helps you find that perfect flight from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from San Francisco with no change fees?

Certainly. Search results for flights from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco become cheaper?

Yes! Start tracking prices for flights from San Francisco today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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