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Cheap flights from San Francisco to London from $453

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 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from San Francisco to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:00 pm - 4:35 pm
SFO
-
LTN
19h 35m
2 stops
Multiple Airlines Logo
9:25 pm - 9:55 pm
LTN
-
SFO
32h 30m
3 stops
$822Multiple Airlines
Wed, Aug 5 - Sat, Aug 22
Multiple Airlines Logo
11:10 am - 2:25 pm
SFO
-
LTN
19h 15m
2 stops
Multiple Airlines Logo
8:35 pm - 12:40 pm
LTN
-
SFO
24h 05m
2 stops
$835Multiple Airlines
Wed, Sep 23 - Mon, Sep 28
Multiple Airlines Logo
6:40 am - 2:20 pm
SFO
-
LTN
23h 40m
3 stops
Multiple Airlines Logo
12:40 pm - 2:05 pm
LTN
-
SFO
33h 25m
2 stops
$845Multiple Airlines
Mon, Sep 28 - Sun, Oct 4
Multiple Airlines Logo
8:10 am - 3:15 pm
SFO
-
LTN
23h 05m
2 stops
Multiple Airlines Logo
5:50 pm - 5:35 pm
LTN
-
SFO
31h 45m
2 stops
$846Multiple Airlines
Mon, Aug 3 - Fri, Aug 28
Multiple Airlines Logo
8:10 am - 11:00 am
SFO
-
LTN
18h 50m
2 stops
Multiple Airlines Logo
12:40 pm - 2:05 pm
LTN
-
SFO
33h 25m
2 stops
$847Multiple Airlines
Sun, Aug 16 - Sun, Aug 30
Multiple Airlines Logo
4:45 pm - 7:05 pm
SFO
-
LTN
18h 20m
2 stops
Multiple Airlines Logo
7:45 pm - 2:40 pm
LTN
-
SFO
26h 55m
2 stops
$849Multiple Airlines
Mon, Aug 17 - Sun, Aug 23
Multiple Airlines Logo
3:05 pm - 7:05 pm
SFO
-
LTN
20h 00m
2 stops
Multiple Airlines Logo
6:10 pm - 11:45 am
LTN
-
SFO
25h 35m
2 stops
$850Multiple Airlines
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
8:10 am - 12:25 pm
SFO
-
LTN
20h 15m
2 stops
Multiple Airlines Logo
6:15 pm - 6:31 pm
LTN
-
SFO
32h 16m
3 stops
$852Multiple Airlines
Sun, Sep 20 - Sat, Sep 26
Multiple Airlines Logo
6:00 am - 4:20 pm
SFO
-
LTN
26h 20m
3 stops
Multiple Airlines Logo
12:40 pm - 2:05 pm
LTN
-
SFO
33h 25m
2 stops
$853Multiple Airlines
Fri, Sep 18 - Sun, Sep 27
Multiple Airlines Logo
8:10 am - 11:00 am
SFO
-
LTN
18h 50m
2 stops
Multiple Airlines Logo
5:45 pm - 2:35 pm
LTN
-
SFO
28h 50m
2 stops
$855Multiple Airlines
Mon, Aug 24 - Tue, Sep 8

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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 June 26, 2026.
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

Cheapest round-trip

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Wed 8/5

1:00 pm-4:35 pm

2 stops19h 35m

London Luton

Sat 8/22

9:25 pm-9:55 pm

3 stops32h 30m

$822
Quickest round-trip

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Wed 9/23

11:10 am-2:25 pm

2 stops19h 15m

London Luton

Mon 9/28

8:35 pm-12:40 pm

2 stops24h 05m

$835

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 9/28

6:40 am-2:20 pm

3 stops23h 40m

London Luton

Sun 10/4

12:40 pm-2:05 pm

2 stops33h 25m

$845

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 8/3

8:10 am-3:15 pm

2 stops23h 05m

London Luton

Fri 8/28

5:50 pm-5:35 pm

2 stops31h 45m

$846

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Sun 8/16

8:10 am-11:00 am

2 stops18h 50m

London Luton

Sun 8/30

12:40 pm-2:05 pm

2 stops33h 25m

$847

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 8/17

4:45 pm-7:05 pm

2 stops18h 20m

London Luton

Sun 8/23

7:45 pm-2:40 pm

2 stops26h 55m

$849

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 8/3

3:05 pm-7:05 pm

2 stops20h 00m

London Luton

Wed 8/19

6:10 pm-11:45 am

2 stops25h 35m

$850

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Sun 9/20

8:10 am-12:25 pm

2 stops20h 15m

London Luton

Sat 9/26

6:15 pm-6:31 pm

3 stops32h 16m

$852

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Fri 9/18

6:00 am-4:20 pm

3 stops26h 20m

London Luton

Sun 9/27

12:40 pm-2:05 pm

2 stops33h 25m

$853

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Mon 8/24

8:10 am-11:00 am

2 stops18h 50m

London Luton

Tue 9/8

5:45 pm-2:35 pm

2 stops28h 50m

$855

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from San Francisco to London Luton 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

How often are flights from San Francisco to London delayed?

Historically, on average around 0% of flights between San Francisco and London have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

What is the most punctual flight time for San Francisco to London flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

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

Fastest flight time

14h 25m

Direct flights

None
The fastest flight from San Francisco to London Luton Airport takes 14h 25m
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.
Search flight deals

Frequently asked questions about flying from San Francisco to London Luton Airport

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

    London Luton is 5323.9 mi away from San Francisco. A reasonable flight in good conditions will take 14h 25m.

  • 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.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Dover
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Watford
Cobham
Brentwood
Guildford
Ilford
Folkestone
Uxbridge
Romford

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

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