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Cheap flights from London Luton Airport to San Francisco from £437

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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SFO
15 Jun — 22 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luton to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Luton to San Francisco
Explore the most affordable flight options available from Luton to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 May 2026.

Tue 1/916:10
LTN
-
SFO
2 stops30h 30m
Multiple Airlines
Sun 13/916:45
SFO
-
LTN
3 stops20h 55m
Multiple Airlines
Deal found 13/5£539
Wed 3/606:15
LTN
-
SFO
1 stop17h 40m
Multiple Airlines
Wed 10/617:40
SFO
-
LTN
1 stop19h 35m
Multiple Airlines
Deal found 12/5£541
Fri 5/606:20
LTN
-
SFO
1 stop17h 30m
Multiple Airlines
Mon 8/617:35
SFO
-
LTN
1 stop14h 10m
Multiple Airlines
Deal found 16/5£544
Wed 10/606:15
LTN
-
SFO
1 stop17h 40m
Multiple Airlines
Tue 16/617:40
SFO
-
LTN
1 stop13h 50m
Multiple Airlines
Deal found 11/5£547
Mon 7/914:25
LTN
-
SFO
3 stops32h 15m
Multiple Airlines
Tue 15/916:45
SFO
-
LTN
2 stops21h 25m
Multiple Airlines
Deal found 14/5£552
Sat 13/609:00
LTN
-
SFO
1 stop14h 55m
Multiple Airlines
Tue 23/617:40
SFO
-
LTN
1 stop20h 30m
Multiple Airlines
Deal found 12/5£554
Wed 27/506:15
LTN
-
SFO
1 stop17h 40m
Multiple Airlines
Thu 4/617:35
SFO
-
LTN
1 stop15h 10m
Multiple Airlines
Deal found 11/5£555
Sat 13/609:00
LTN
-
SFO
1 stop14h 55m
Multiple Airlines
Sun 28/617:40
SFO
-
LTN
1 stop20h 00m
Multiple Airlines
Deal found 12/5£556
Mon 15/608:15
LTN
-
SFO
1 stop15h 35m
Multiple Airlines
Sun 21/617:40
SFO
-
LTN
1 stop13h 45m
Multiple Airlines
Deal found 12/5£560
Thu 21/509:25
LTN
-
SFO
1 stop14h 25m
Multiple Airlines
Thu 4/617:35
SFO
-
LTN
1 stop21h 50m
Multiple Airlines
Deal found 14/5£561
Sat 13/609:00
LTN
-
SFO
1 stop14h 55m
Multiple Airlines
Wed 24/617:40
SFO
-
LTN
1 stop13h 45m
Multiple Airlines
Deal found 12/5£564

Find flight deals from Luton to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Luton (LTN) to San Francisco (SFO). 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 16 May 2026.

Round-trip from

£539

One-way from

£437

Popular in

December

Cheapest in

February

Average price

£539
1/9-13/9
  • 1/9-13/9
  • 5 total stops
  • 51h 25m total
  • London to San Francisco
Search Deals
14/7
  • 14/7
  • 3 total stops
  • 48h 00m total
  • London to San Francisco
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton to San Francisco 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 858,174 searches. Data last updated 16 May 2026.
Use the filters below to find and compare flights from London Luton Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Tue 16/6

17:45-14:30

2 stops28h 45m

San Francisco

Sun 28/6

16:30-23:20

2 stops22h 50m

£626

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Sat 6/6

11:00-22:06

2 stops19h 06m

San Francisco

Sat 13/6

17:40-16:05

1 stop14h 25m

£633

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Tue 2/6

13:40-12:40

3 stops31h 00m

San Francisco

Tue 9/6

12:15-23:45

3 stops27h 30m

£649
Fastest return journey

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Tue 9/6

09:40-15:55

1 stop14h 15m

San Francisco

Fri 19/6

17:35-17:25

1 stop15h 50m

£666

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Wed 10/6

06:15-15:55

1 stop17h 40m

San Francisco

Fri 19/6

17:35-17:25

1 stop15h 50m

£675

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Wed 8/7

20:35-16:15

2 stops27h 40m

San Francisco

Mon 20/7

08:10-14:35

2 stops22h 25m

£714

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Sat 13/6

06:00-13:50

1 stop15h 50m

San Francisco

Sat 20/6

18:05-12:35

2 stops34h 30m

£735

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Thu 25/6

18:20-11:45

2 stops25h 25m

San Francisco

Thu 9/7

20:10-22:45

2 stops18h 35m

£744

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Sat 11/7

16:35-16:40

2 stops32h 05m

San Francisco

Thu 13/8

20:30-09:25

1 stop28h 55m

£759

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Fri 12/6

19:00-13:50

1 stop26h 50m

San Francisco

Sun 21/6

06:00-12:35

2 stops22h 35m

£814

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Luton to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Luton 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.

Cheapflights Insights

Everything you need to know about your flight from London Luton Airport to San Francisco

How often are flights from London to San Francisco delayed?

About 100% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 78 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

Monday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Related info for your journey

Find useful and relevant information for your journey from Luton to San Francisco. 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 into for flights to San Francisco from London Luton?

    For a flight from London Luton to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.0 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 0 inbound flights from London Luton per day. 0 airlines have flights to San Francisco from London Luton on a regular basis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luton to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Luton to San Francisco

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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 Luton to San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Luton to 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 Luton to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Luton to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to San Francisco from Luton? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Luton to San Francisco flights 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 your alerts.

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