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Cheap flights from San Francisco to London from $322

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to London departing on 10/27. 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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Find the cheapest flights from San Francisco to London (SFO-LTN)

Cheap round-trip flights

Logo
8:30 am - 12:20 pmSFO-LTN
19h 50m2 stops
Logo
6:10 pm - 4:10 pmLTN-SFO
30h 00m2 stops
$539
Find Deal
Tue, Sep 30 - Tue, Oct 7
Logo
8:30 am - 12:20 pmSFO-LTN
19h 50m2 stops
Logo
6:40 am - 7:00 pmLTN-SFO
20h 20m2 stops
$540
Find Deal
Mon, Oct 6 - Thu, Oct 16
Logo
8:30 am - 12:20 pmSFO-LTN
19h 50m2 stops
Logo
6:10 pm - 4:10 pmLTN-SFO
30h 00m2 stops
$553
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Tue, Sep 30 - Tue, Oct 7
Logo
4:40 pm - 10:55 pmSFO-LTN
22h 15m2 stops
Logo
2:40 pm - 2:35 pmLTN-SFO
31h 55m2 stops
$566
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Sat, Nov 15 - Sun, Nov 23
Logo
8:30 am - 12:20 pmSFO-LTN
19h 50m2 stops
Logo
4:00 pm - 12:40 pmLTN-SFO
28h 40m2 stops
$577
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Mon, Sep 29 - Mon, Oct 6
Logo
8:25 am - 7:25 pmSFO-LTN
27h 00m2 stops
Logo
8:05 pm - 12:40 pmLTN-SFO
24h 35m2 stops
$578
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Mon, Nov 10 - Mon, Nov 17
Logo
7:30 pm - 11:35 pmSFO-LTN
20h 05m2 stops
Logo
6:10 pm - 12:40 pmLTN-SFO
26h 30m2 stops
$586
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Tue, Sep 23 - Tue, Oct 7
Logo
8:25 am - 2:00 pmSFO-LTN
21h 35m3 stops
Logo
8:05 pm - 12:40 pmLTN-SFO
24h 35m2 stops
$596
Find Deal
Tue, Nov 11 - Tue, Nov 18
Logo
9:30 pm - 10:10 pmSFO-LTN
17h 40m2 stops
Logo
8:05 pm - 2:35 pmLTN-SFO
26h 30m2 stops
$601
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Thu, Oct 30 - Sat, Nov 8
Logo
5:20 pm - 8:05 pmSFO-LTN
18h 45m1 stop
Logo
5:50 am - 3:35 pmLTN-SFO
17h 45m1 stop
$603
Find Deal
Tue, Nov 4 - Fri, Nov 14

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to London Luton Airport 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, momondo users made 832,500 searches. Data last updated September 3, 2025.
Use the filters below to find and compare flights from San Francisco to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Tue 9/30

8:30 am-12:20 pm

2 stops19h 50m

London Luton

Tue 10/7

6:10 pm-4:10 pm

2 stops30h 00m

$539

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 10/6

8:30 am-12:20 pm

2 stops19h 50m

London Luton

Thu 10/16

6:40 am-7:00 pm

2 stops20h 20m

$540

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Tue 9/30

8:30 am-12:20 pm

2 stops19h 50m

London Luton

Tue 10/7

6:10 pm-4:10 pm

2 stops30h 00m

$553

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Sat 11/15

4:40 pm-10:55 pm

2 stops22h 15m

London Luton

Sun 11/23

2:40 pm-2:35 pm

2 stops31h 55m

$566

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 9/29

8:30 am-12:20 pm

2 stops19h 50m

London Luton

Mon 10/6

4:00 pm-12:40 pm

2 stops28h 40m

$577

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 11/10

8:25 am-7:25 pm

2 stops27h 00m

London Luton

Mon 11/17

8:05 pm-12:40 pm

2 stops24h 35m

$578

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Tue 9/23

7:30 pm-11:35 pm

2 stops20h 05m

London Luton

Tue 10/7

6:10 pm-12:40 pm

2 stops26h 30m

$586

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Tue 11/11

8:25 am-2:00 pm

3 stops21h 35m

London Luton

Tue 11/18

8:05 pm-12:40 pm

2 stops24h 35m

$596

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Thu 10/30

9:30 pm-10:10 pm

2 stops17h 40m

London Luton

Sat 11/8

8:05 pm-2:35 pm

2 stops26h 30m

$601

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Tue 11/4

5:20 pm-8:05 pm

1 stop18h 45m

London Luton

Fri 11/14

5:50 am-3:35 pm

1 stop17h 45m

$603

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from San Francisco to London Luton Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to London Luton 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 Luton Airport (SFO to LTN) flight deals and tips

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

Direct flights

None
There are no direct flights from San Francisco to London Luton Airport. There are no popular flight routes from San Francisco to London Luton Airport.
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  • How far is San Francisco to London Luton by plane?

    London Luton is 5323.7 mi away from San Francisco. A reasonable flight in good conditions will take 15h 45m.

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to London Luton Airport.

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

    The travel and health documents required for your trip to London Luton Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Luton Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • How do I get Price Alerts for flights from San Francisco to London Luton Airport?

    Search flight deals from San Francisco to London Luton Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from San Francisco to London Luton Airport with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Luton
Dover
Slough
Milton Keynes
Hayes
Guildford
Dartford
Stansted
Crawley
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Watford
Richmond
Wembley
Canterbury

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to London. momondo saves you time and could save you money on your trip.

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

Yes. All flights to London from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from San Francisco.

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

Of course. momondo tracks the price of San Francisco to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Luton Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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