Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from San Francisco to London from $471

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
23 Dec — 30 Dec1
1 adult

The best prices from San Francisco to London are usually found in October or September, booked 38 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from San Francisco to London

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to London (LON). 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 18 December 2024.

Round-trip from

$970

One-way from

$471

Popular in

June

Cheapest in

October

Average price

$1,457
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/2-13/3
  • 2 total stops
  • 31h 30m total
  • San Francisco to London
JetBlue
  • JetBlue
  • 13/1
  • 1 total stop
  • 21h 25m total
  • San Francisco to London
High demand for flights, 21% potential price rise
Best time to find cheap flights, 4% potential price drop
Average for round-trip flights in December 2024

Find flight deals from San Francisco to London

Cheapest flights from San Francisco to London
Explore the most affordable flight options available from San Francisco to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2024.

Sun 29/1213:00SFO - LHR
1 stop13h 10mUnited Airlines
Fri 17/108:55LHR - SFO
1 stop15h 30mUnited Airlines
Deal found 17/12$996
Mon 30/1216:40SFO - LHR
Nonstop10h 15mDelta
Tue 14/106:30LHR - SFO
1 stop13h 20mDelta
Deal found 17/12$1,003
Mon 30/1216:40SFO - LHR
Nonstop10h 15mVirgin Atlantic
Wed 15/111:40LHR - SFO
Nonstop11h 05mVirgin Atlantic
Deal found 16/12$1,027
Sat 28/1217:30SFO - LHR
1 stop14h 30mScandinavian Airlines
Thu 16/106:40LHR - SFO
1 stop17h 00mScandinavian Airlines
Deal found 17/12$1,030
Mon 30/1220:40SFO - LHR
Nonstop10h 35mBritish Airways
Thu 16/111:45LHR - SFO
Nonstop11h 15mBritish Airways
Deal found 17/12$1,044
Mon 30/1220:35SFO - LHR
2 stops33h 30mAustrian Airlines
Wed 15/109:05LHR - SFO
2 stops44h 37mAustrian Airlines
Deal found 18/12$1,079
Mon 30/1219:25SFO - LHR
1 stop14h 25mSWISS
Sun 12/119:30LHR - SFO
2 stops52h 55mSWISS
Deal found 17/12$1,082
Tue 31/1217:30SFO - LHR
Nonstop10h 30mFinnair
Sat 18/110:40LHR - SFO
1 stop16h 30mFinnair
Deal found 17/12$1,087
Mon 30/1214:40SFO - LHR
2 stops22h 40mBrussels Airlines
Mon 20/106:50LHR - SFO
2 stops43h 55mBrussels Airlines
Deal found 17/12$1,122
Tue 17/1217:25SFO - LHR
Nonstop10h 35mMultiple Airlines
Wed 25/1213:00LHR - SFO
1 stop34h 35mMultiple Airlines
Deal found 17/12$1,265
Fri 27/1215:50SFO - LHR
1 stop14h 35mKLM
Sun 29/1210:45LHR - SFO
1 stop15h 37mKLM
Deal found 17/12$1,429
Sat 28/1212:50SFO - LHR
Nonstop10h 35mLufthansa
Thu 16/109:30LHR - SFO
1 stop14h 30mLufthansa
Deal found 17/12$1,561

Find flights from San Francisco to London within your budget

Customise your flight search to find flights from San Francisco to London 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 647,157 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 20/2

17:30-16:00

1 stop14h 30m

London Heathrow

Thu 13/3

06:40-16:40

1 stop17h 00m

$970

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 18/2

06:00-05:55

1 stop15h 55m

London Heathrow

Thu 13/3

12:20-01:04

1 stop19h 44m

$980

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 13/1

16:40-17:30

1 stop16h 50m

London Heathrow

Sun 19/1

19:55-14:45

1 stop26h 50m

$984

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 29/12

13:00-10:10

1 stop13h 10m

London Heathrow

Fri 17/1

08:55-16:25

1 stop15h 30m

$996

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 30/12

16:40-10:55

Nonstop10h 15m

London Heathrow

Tue 14/1

06:30-11:50

1 stop13h 20m

$1,003

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 15/1

17:30-12:00

Nonstop10h 30m

London Heathrow

Thu 23/1

11:45-15:00

Nonstop11h 15m

$1,027

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 25/3

18:30-12:00

Nonstop10h 30m

London Heathrow

Tue 8/4

10:45-13:50

Nonstop11h 05m

$1,044

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 29/12

19:25-21:25

2 stops18h 00m

London Heathrow

Tue 14/1

20:05-16:25

1 stop28h 20m

$1,071

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 6/1

13:40-10:00

1 stop12h 20m

London Heathrow

Mon 13/1

09:10-21:00

1 stop19h 50m

$1,166

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 24/1

20:35-20:50

2 stops16h 15m

London Heathrow

Fri 31/1

07:10-18:45

2 stops19h 35m

$1,174

Flights are sorted by cheapest return flights first.

Deals found on 18/12

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London 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 to London

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

How far ahead should I book a flight from San Francisco to London?

Use this chart to determine the optimal time to book a return flight from San Francisco to London. Price data was last updated on 13 December 2024.

The best time to book flights from San Francisco to London is 38 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to London?

Currently, October is the cheapest month in which you can book a flight from San Francisco to London (average of $1,037). Flying from San Francisco to London in December is currently the most expensive (average of $1,543). 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 SFO to LON?

Find hourly flight availability from San Francisco to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2024.

When flying from San Francisco to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Francisco to London

Explore weekly flight availability from San Francisco to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 December 2024.

The most flights from SFO to LON are scheduled on a Monday (33 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 on average).

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 18 December 2024.
See what other customers who have flown with SWISS, KLM and United Airlines from San Francisco to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.3
Very Good
754 reviews

Overall

8.3

Crew

8.6

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

8.3
Very Good
754 reviews
8.3
Very Good
754 reviews

Overall

8.3

Crew

8.6

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

8.0
Very Good
8,604 reviews
8.3
Very Good
754 reviews

Overall

8.3

Crew

8.6

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

8.0
Very Good
9,554 reviews
8.3
Very Good
754 reviews

Overall

8.3

Crew

8.6

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

7.8
Good
1,349 reviews
8.3
Very Good
754 reviews

Overall

8.3

Crew

8.6

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

7.7
Good
1,285 reviews
8.3
Very Good
754 reviews

Overall

8.3

Crew

8.6

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Reviews

1 / 10

Had a beer dropped in my lap which was a total accident, what I want impressed with was the fact that I had to ask for a towel to clean up my leg and the ground. From Taipei to Seattle

Related info for your journey

Find useful and relevant information for your journey from San Francisco to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from San Francisco to London?

    Located just 19.0 km from the city centre, San Francisco is the airport most travellers will use when flying to London from San Francisco. Booking flights from San Francisco (SFO) to London should be relatively easy as there are 33 daily outbound flights to London from 0 different airlines.

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

    Currently priced at $970, Scandinavian Airlines will fly you from San Francisco to London and back. In addition to Scandinavian Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and TAP AIR PORTUGAL - these airlines can fly you to your destination from $981 and $994, respectively. Scandinavian Airlines is priced at 22% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $471. However, be on the lookout for offers from WestJet and Delta, as they are both options that can get you from San Francisco to London for a low price.

  • What are the most reliable airlines from San Francisco to London?

    Consider Iberia (82%), KLM (81%) or American Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to London.

  • What are the cheapest flights from San Francisco to London?

    Looking for the cheapest flight from San Francisco to London? While on average our users pay $1,314, our data indicates the cheapest price to be $647. The most popular route (San Francisco - London Heathrow), is priced around $3,228.

  • Can I find deals for flights from San Francisco to London that include hotel bookings?

    Yes. In addition to deals on San Francisco to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to London.

  • Can I find deals for business class flights from San Francisco to London?

    Yes. Cheapflights offers flight deals from San Francisco to London 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 San Francisco to London?

    Currently, October is the cheapest month in which you can book a flight from San Francisco to London (average of $1,037). Flying from San Francisco to London in December is currently the most expensive (average of $1,543). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to London

See prices for flight routes from nearby airports that may be better suited for you.

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 to London?

Deals for San Francisco to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to London.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to London flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on San Francisco to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.