Cheap flights from San Francisco to London from $151

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to London departing on 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

JetBlue Logo
11:55 am - 8:45 pmSFO-LHR
24h 50m1 stop
JetBlue Logo
7:25 am - 3:41 pmLHR-SFO
16h 16m1 stop
$151JetBlue
Find Deal
lun., nov. 3 - vie., nov. 7
JetBlue Logo
6:00 am - 8:45 pmSFO-LHR
30h 45m1 stop
JetBlue Logo
8:15 am - 8:47 pmLHR-SFO
20h 32m1 stop
$195JetBlue
Find Deal
sáb., ago. 16 - sáb., ago. 23
Virgin Atlantic Logo
10:00 am - 9:50 amSFO-LHR
15h 50m1 stop
Virgin Atlantic Logo
6:30 am - 11:45 amLHR-SFO
13h 15m1 stop
$470Virgin Atlantic
Find Deal
lun., ago. 18 - jue., ago. 28
Lufthansa Logo
1:00 pm - 7:25 amSFO-LHR
10h 25mnonstop
Lufthansa Logo
4:15 pm - 7:10 pmLHR-SFO
10h 55mnonstop
$474Lufthansa
Find Deal
mié., ago. 6 - mié., ago. 20
Virgin Atlantic Logo
4:35 pm - 2:15 pmSFO-LHR
13h 40m1 stop
Virgin Atlantic Logo
11:15 am - 2:15 pmLHR-SFO
11h 00mnonstop
$476Virgin Atlantic
Find Deal
lun., ago. 18 - jue., ago. 28
Lufthansa Logo
8:30 am - 6:30 amSFO-LHR
14h 00m1 stop
Lufthansa Logo
12:00 pm - 8:02 pmLHR-SFO
16h 02m1 stop
$480Lufthansa
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mié., ago. 6 - mié., ago. 20
British Airways Logo
4:30 pm - 10:55 amSFO-LHR
10h 25mnonstop
British Airways Logo
3:25 pm - 7:45 pmLHR-SFO
11h 20mnonstop
$495British Airways
Find Deal
mar., oct. 7 - jue., oct. 30
British Airways Logo
7:20 pm - 1:45 pmSFO-LHR
10h 25mnonstop
British Airways Logo
10:45 am - 1:50 pmLHR-SFO
11h 05mnonstop
$496British Airways
Find Deal
lun., sep. 29 - mié., oct. 8
United Airlines Logo
1:05 pm - 7:25 amSFO-LHR
10h 20mnonstop
United Airlines Logo
8:55 am - 5:25 pmLHR-SFO
15h 30m1 stop
$497United Airlines
Find Deal
mié., oct. 8 - jue., oct. 30
United Airlines Logo
1:05 pm - 7:25 amSFO-LHR
10h 20mnonstop
United Airlines Logo
8:40 am - 4:10 pmLHR-SFO
15h 30m1 stop
$499United Airlines
Find Deal
mar., sep. 9 - vie., sep. 19

JetBlue flights from San Francisco to London Heathrow Airport

Our best JetBlue deals on San Francisco to London Heathrow Airport flight tickets
JetBlue
Nov 3
SFO11:55 amSan Francisco
24h 50m
1 stop
LHR8:45 pmLondon Heathrow
Nov 7
LHR7:25 amLondon Heathrow
16h 16m
1 stop
SFO3:41 pmSan Francisco
JetBlue
Aug 16
SFO6:00 amSan Francisco
30h 45m
1 stop
LHR8:45 pmLondon Heathrow
Aug 23
LHR8:15 amLondon Heathrow
20h 32m
1 stop
SFO8:47 pmSan Francisco
JetBlue
Jul 26
SFO7:40 amSan Francisco
29h 05m
1 stop
LHR8:45 pmLondon Heathrow
Aug 2
LHR8:25 amLondon Heathrow
23h 14m
1 stop
SFO11:39 pmSan Francisco

TAP AIR PORTUGAL flights from San Francisco to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on San Francisco to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
Oct 21
SFO4:20 pmSan Francisco
21h 40m
1 stop
LHR10:00 pmLondon Heathrow
Nov 4
LHR6:30 pmLondon Heathrow
28h 00m
1 stop
SFO2:30 pmSan Francisco
TAP AIR PORTUGAL
Nov 10
SFO4:35 pmSan Francisco
22h 05m
1 stop
LHR10:40 pmLondon Heathrow
Nov 22
LHR6:00 amLondon Heathrow
16h 45m
1 stop
SFO2:45 pmSan Francisco
TAP AIR PORTUGAL
Sep 9
SFO6:45 pmSan Francisco
19h 15m
1 stop
LHR10:00 pmLondon Heathrow
Sep 22
LHR6:45 pmLondon Heathrow
26h 50m
1 stop
SFO1:35 pmSan Francisco

See travel insights to London from

How to get the cheapest flight ticket from San Francisco to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Francisco and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from San Francisco, with most prices found around $642. If you’re not able to fly to London Heathrow Airport in October, then February is your next best option. Flight prices from San Francisco to London Heathrow Airport during February average around $668.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $807. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $944.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from San Francisco to London Heathrow Airport in the evening for as low as $852. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $990.

What is the cheapest San Francisco to London Heathrow flight route?

Fly from San Francisco to London Heathrow for the best San Francisco - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $770 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Francisco for as low as $712 on momondo.

What cabin class options are available on San Francisco to London Heathrow flights?

There are 4 cabin classes available to choose from on San Francisco to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Francisco to London Heathrow Airport flight prices changed over time?

As of July 2025, prices for San Francisco to London Heathrow Airport flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to London Heathrow Airport (SFO to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to London Heathrow Airport

Best Price Found

$165

Fastest flight time

10h 20m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from San Francisco in the past 72 hours is $165. The best round-trip flight deal from San Francisco to London Heathrow Airport found on momondo in the last 72 hours is $151.
The fastest flight from San Francisco to London Heathrow Airport takes 10h 20m
Direct flights go from San Francisco to London Heathrow Airport every day.

  • How far is San Francisco to London Heathrow by plane?

    London Heathrow is 5341.3 mi away from San Francisco. Typically, this will take 10h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from San Francisco Airport to London Heathrow Airport?

    Prices for flights from San Francisco Airport to London Heathrow Airport refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to London Heathrow Airport?

  • How old do you have to be to fly from San Francisco Airport to London Heathrow Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Francisco to London Heathrow Airport?

  • What is the most popular airline from San Francisco to London Heathrow Airport?


Best airlines flying from San Francisco to London Heathrow Airport

Compare and see reviews for airlines that fly from San Francisco to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $337Free CancellationRating
7.3
1,424 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $440Free CancellationRating
7.1
1,922 reviews
Search TAP AIR PORTUGAL flights
SWISSPriceFrom $558Free CancellationRating
7.5
1,661 reviews
Search SWISS flights
British AirwaysPriceFrom $572Free CancellationRating
6.6
7,151 reviews
Search British Airways flights
IberiaPriceFrom $572Free CancellationRating
7.0
2,842 reviews
Search Iberia flights
FinnairPriceFrom $573Free CancellationRating
7.6
1,316 reviews
Search Finnair flights
American AirlinesPriceFrom $580Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $582Free CancellationRating
6.8
7,216 reviews
Search Lufthansa flights
JetBluePriceFrom $584Free CancellationRating
7.3
2,910 reviews
Search JetBlue flights
KLMPriceFrom $586Free CancellationRating
7.8
1,374 reviews
Search KLM flights
  • Delta Flights From San Francisco to London Heathrow Airport

    Delta flight deals from San Francisco to London Heathrow Airport start from $590 round-trip. Over the 14 Delta flights for this route in a normal week, average airfare is usually $806 round-trip - but some users have found much cheaper deals with momondo.

  • Alaska Airlines Flights From San Francisco to London Heathrow Airport

    Alaska Airlines (8.0/10 from 10,000 reviews) operates around 14 flights from San Francisco to London Heathrow Airport in any given week. The average Alaska Airlines airfare for this route is around $936, with deals from around $789 rare but found on momondo. Referenced prices are for round-trip San Francisco to London Heathrow Airport flight searches in the last 72 hours.


Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Slough
Dover
Luton
Croydon
Dartford
Guildford
Stansted
Milton Keynes
Hayes
Salisbury
Ilford
Swindon
Colchester
Stratford-upon-Avon
Chelmsford
Canterbury
Watford
Richmond

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to London?

It is quick and easy to find San Francisco to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from San Francisco to London with flexible booking policies on momondo?

Flights from San Francisco to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Francisco to London?

momondo helps you find the best flight between San Francisco and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Francisco to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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1 adult
mar. 7/22
mar. 7/29

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