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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 17/7. 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
9 Jul — 16 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 4 July 2025.

Cheapest one-way flight

£35

Cheapest round-trip flight

£104

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 £67).
London Heathrow (LHR) is currently the most popular flight destination from San Francisco (average return price of £347).
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 4 July 2025.

Wed 13/806:37SFO - BWI
1 stop6h 54mFrontier
Wed 13/819:56BWI - SFO
2 stops19h 19mFrontier
Deal found 2/7£211
Thu 14/822:43SFO - IAD
Nonstop5h 07mAlaska Airlines
Sat 16/808:10IAD - SFO
Nonstop5h 45mAlaska Airlines
Deal found 2/7£215
Tue 12/808:25SFO - DCA
1 stop8h 38mJetBlue
Mon 18/815:45DCA - SFO
1 stop12h 13mJetBlue
Deal found 3/7£216
Thu 14/818:52SFO - IAD
1 stop8h 42mMultiple Airlines
Tue 19/817:25IAD - SFO
1 stop9h 25mMultiple Airlines
Deal found 3/7£216
Tue 12/807:20SFO - DCA
1 stop10h 39mAlaska Airlines
Wed 13/809:59DCA - SFO
1 stop9h 09mAlaska Airlines
Deal found 3/7£217
Mon 11/821:10SFO - BWI
Nonstop5h 18mUnited Airlines
Thu 14/819:00BWI - SFO
Nonstop5h 49mUnited Airlines
Deal found 3/7£218
Sat 23/809:55SFO - DCA
1 stop8h 40mSouthwest
Sat 30/806:00DCA - SFO
2 stops9h 25mSouthwest
Deal found 3/7£221
Thu 14/806:00SFO - IAD
1 stop7h 25mHawaiian Airlines
Sat 16/819:59IAD - SFO
Nonstop5h 47mHawaiian Airlines
Deal found 1/7£221
Thu 14/800:30SFO - DCA
1 stop8h 16mUnited Airlines
Tue 26/807:00DCA - SFO
Nonstop5h 50mUnited Airlines
Deal found 3/7£222
Thu 14/823:59SFO - BWI
1 stop8h 24mSun Country Air
Sun 17/812:25BWI - SFO
1 stop13h 31mSun Country Air
Deal found 3/7£223
Mon 11/800:40SFO - IAD
1 stop7h 38mDelta
Mon 18/807:30IAD - SFO
1 stop7h 41mDelta
Deal found 3/7£224
Tue 12/805:50SFO - DCA
1 stop7h 43mDelta
Thu 14/819:38DCA - SFO
1 stop7h 57mDelta
Deal found 3/7£225

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 4 July 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Wed 13/8

06:37-16:31

1 stop6h 54m

Baltimore/Washington

Wed 13/8

19:56-12:15

2 stops19h 19m

£211

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 14/8

22:43-06:50

Nonstop5h 07m

Washington, D.C. Dulles Intl

Sat 16/8

08:10-10:55

Nonstop5h 45m

£215

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Tue 12/8

08:25-20:03

1 stop8h 38m

Washington, D.C. Reagan-National

Mon 18/8

15:45-00:58

1 stop12h 13m

£216

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 14/8

18:52-06:34

1 stop8h 42m

Washington, D.C. Dulles Intl

Tue 19/8

17:25-23:50

1 stop9h 25m

£216

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

£217

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Mon 11/8

21:10-05:28

Nonstop5h 18m

Baltimore/Washington

Thu 14/8

19:00-21:49

Nonstop5h 49m

£218

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Sat 23/8

09:55-21:35

1 stop8h 40m

Washington, D.C. Reagan-National

Sat 30/8

06:00-12:25

2 stops9h 25m

£221

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 14/8

06:00-16:25

1 stop7h 25m

Washington, D.C. Dulles Intl

Sat 16/8

19:59-22:46

Nonstop5h 47m

£221

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Thu 14/8

00:30-11:46

1 stop8h 16m

Washington, D.C. Reagan-National

Tue 26/8

07:00-09:50

Nonstop5h 50m

£222

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Thu 14/8

23:59-11:23

1 stop8h 24m

Baltimore/Washington

Sun 17/8

12:25-22:56

1 stop13h 31m

£223

Flights are sorted by cheapest return flights first.

Deals found on 2/7

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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 £385). Flying from San Francisco in June will prove the most costly (average of £593). 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, Austrian Airlines, andAir France 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.

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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.

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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.

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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.

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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.

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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 4 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 £543 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 (£40).

  • 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 £244
    San Francisco to Dallas/Fort Worth Airport from £473
    San Francisco to Salt Lake City from £482
    San Francisco to Detroit Metropolitan Wayne County Airport from £621

  • 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 £283 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 Washington, D.C. from £219 round trip
    Travel from San Francisco to London from £308 round trip
    Travel from San Francisco to Edinburgh from £423 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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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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