Flights to San Francisco

£265 Cheap flights to San Francisco

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to San Francisco departing on 6/5. 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 the United Kingdom to San Francisco

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
10:45 - 13:50
LHR
-
SFO
11h 05mdirect
British Airways Logo
16:35 - 11:00
SFO
-
LHR
10h 25mdirect
£380British Airways
Mon, 20 Apr - Sun, 26 Apr
United Airlines Logo
10:35 - 13:35
LHR
-
SFO
11h 00mdirect
United Airlines Logo
22:35 - 20:40
SFO
-
LHR
14h 05m
1 stop
£398United Airlines
Mon, 1 Jun - Tue, 9 Jun
British Airways Logo
10:45 - 13:50
LHR
-
SFO
11h 05mdirect
British Airways Logo
19:30 - 13:55
SFO
-
LHR
10h 25mdirect
£401British Airways
Wed, 19 Aug - Mon, 24 Aug
British Airways Logo
10:45 - 13:50
LHR
-
SFO
11h 05mdirect
British Airways Logo
19:30 - 13:55
SFO
-
LHR
10h 25mdirect
£406British Airways
Wed, 12 Aug - Wed, 19 Aug
United Airlines Logo
10:00 - 18:30
LHR
-
SFO
16h 30m
1 stop
United Airlines Logo
19:45 - 14:10
SFO
-
LHR
10h 25mdirect
£418United Airlines
Tue, 21 Jul - Tue, 28 Jul
Scandinavian Airlines Logo
06:40 - 14:40
LHR
-
SFO
16h 00m
1 stop
Scandinavian Airlines Logo
16:45 - 16:00
SFO
-
LHR
15h 15m
1 stop
£439Scandinavian Airlines
Fri, 1 May - Mon, 18 May
SWISS Logo
18:35 - 16:15
LGW
-
SFO
29h 40m
1 stop
SWISS Logo
19:35 - 17:50
SFO
-
LGW
14h 15m
1 stop
£440SWISS
Thu, 16 Apr - Sun, 19 Apr
SWISS Logo
08:40 - 16:15
LHR
-
SFO
15h 35m
1 stop
SWISS Logo
14:00 - 16:25
SFO
-
LHR
18h 25m
1 stop
£440SWISS
Fri, 8 May - Fri, 15 May
Scandinavian Airlines Logo
19:40 - 14:40
EDI
-
SFO
27h 00m
2 stops
Scandinavian Airlines Logo
16:45 - 18:25
SFO
-
EDI
17h 40m
1 stop
£461Scandinavian Airlines
Fri, 15 May - Fri, 29 May
Aer Lingus Logo
08:10 - 15:50
BHX
-
SFO
15h 40m
1 stop
Aer Lingus Logo
17:40 - 21:05
SFO
-
BHX
19h 25m
1 stop
£560Aer Lingus
Thu, 28 May - Sat, 6 Jun

momondo Fare Finder

 
Locate flights to San Francisco that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 19 March 2026.
Use the filters below to find and compare flights to San Francisco that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 20/4

10:45-13:50

Nonstop11h 05m

San Francisco

Sun 26/4

16:35-11:00

Nonstop10h 25m

£380

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 1/6

10:35-13:35

Nonstop11h 00m

San Francisco

Tue 9/6

22:35-20:40

1 stop14h 05m

£398

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 19/8

10:45-13:50

Nonstop11h 05m

San Francisco

Mon 24/8

19:30-13:55

Nonstop10h 25m

£401

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 12/8

10:45-13:50

Nonstop11h 05m

San Francisco

Wed 19/8

19:30-13:55

Nonstop10h 25m

£406

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 21/7

10:00-18:30

1 stop16h 30m

San Francisco

Tue 28/7

19:45-14:10

Nonstop10h 25m

£418

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 1/5

06:40-14:40

1 stop16h 00m

San Francisco

Mon 18/5

16:45-16:00

1 stop15h 15m

£439

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Thu 16/4

18:35-16:15

1 stop29h 40m

San Francisco

Sun 19/4

19:35-17:50

1 stop14h 15m

£440

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 8/5

08:40-16:15

1 stop15h 35m

San Francisco

Fri 15/5

14:00-16:25

1 stop18h 25m

£440

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Fri 15/5

19:40-14:40

2 stops27h 00m

San Francisco

Fri 29/5

16:45-18:25

1 stop17h 40m

£461

BirminghamSan Francisco

BHX - SFO

BHXSFO

Birmingham

Thu 28/5

08:10-15:50

1 stop15h 40m

San Francisco

Sat 6/6

17:40-21:05

1 stop19h 25m

£560

Flights are sorted by cheapest return flights first.

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

San Francisco flights insights and trends

Explore insights for your San Francisco flight to craft the best travel plan

What is the cheapest month to fly to San Francisco?

The month of February is, on average, the cheapest month to fly to San Francisco from United Kingdom, with most prices found around £413. If you are unable to visit San Francisco during the month of February, then departing from United Kingdom during the month September is also very affordable. Most momondo users find prices during this month for around £430.

What is the absolute cheapest flight to San Francisco?

£54 is the cheapest deal found on momondo in the last two weeks for a flight to San Francisco. This flight is from Las Vegas and is 79% cheaper than most flights to San Francisco. To find the cheapest price to San Francisco from your area, use momondo’s Airport-to-Airport Pricing Tool.

See prices from:

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart on your flight to San Francisco is on a Thursday when prices can be found for as low as £562. This is often the case because there is less demand to fly during this day of the week. Flights from United Kingdom to San Francisco on a Sunday will generally be more expensive and average around £646. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Francisco?

Our most recent data shows that the best time of day to fly to San Francisco is in the morning. Flights from United Kingdom to San Francisco during this time can be as low as £563. Try not to purchase tickets at midday because they tend to be around £797. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around £510 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from United Kingdom for as low as £463 on momondo.

Cheapest flights to San Francisco

Find the cheapest flights to San Francisco from your nearest city or airport
CHEAPEST MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORTFebruary17% cheaperFlying from London Heathrow Airport to San Francisco costs on average just £427 in February
MOST EXPENSIVE MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORTDecember29% more expensiveIt costs about £662 for flights to San Francisco from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORTJuly273% more users visitedMore momondo users searched in flights to San Francisco from London Heathrow Airport in July than any other month

Cheap San Francisco flight deals and tips

Summary info about San Francisco flight prices, duration and airlines

Best One-Way Price

£265

Best Round-Trip Price

£380

Fastest flight time

11h 05m

Popular in

July
The best one-way flight price to San Francisco from United Kingdom in the last 72 hours is £265 (Manchester to San Francisco).
The best round-trip flight price to San Francisco from United Kingdom in the last 72 hours is £380 (London Heathrow to San Francisco).
The fastest flight to San Francisco from United Kingdom takes 11h 05m (London Heathrow to San Francisco).
July has the highest demand for flights to San Francisco, with a 13% price increase on average.

Frequently asked questions about flying to San Francisco

When is it best to fly to San Francisco to go sightseeing?

Sights like Fisherman's Wharf, Lombard Street, and Alcatraz are most enjoyable in months with moderate weather conditions like January, February, or December. Plan your flight to San Francisco for those months.

How far in advance should I book a flight to San Francisco?

In general, most travellers find the cheapest time to book a flight to San Francisco is about 51 days prior to their departure date, when tickets on average are £504. Keep in mind that you might also find cheap flights to San Francisco outside of this time window. In fact, momondo users recently found flights from United Kingdom to San Francisco for £434.

Is there an alternative airport near San Francisco?

Those flying to San Francisco could potentially find better pricing at Oakland Airport (12 mi from San Francisco city centre), Concord Buchanan Fld Airport (24 mi from San Francisco city centre), Napa County Airport (30 mi from San Francisco city centre), San Jose Airport (40 mi from San Francisco city centre) or Santa Rosa Sonoma County Airport (54 mi from San Francisco city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into San Francisco?

You can find deals at Oakland Airport for £175 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to San Francisco Airport?

Prices for flights to San Francisco Airport are refreshed on a daily basis.

How many operators does momondo search for flights to San Francisco Airport?

How old do you have to be to fly to San Francisco Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents required for your trip to San Francisco 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 San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Sunnyvale
Santa Clara
Seaside
Rohnert Park
Big Sur
Newark
Campbell
Palo Alto
South San Francisco
Capitola
Santa Cruz
Roseville
Novato
Sausalito
San Bruno
Woodland
Pacific Grove
Aptos
Burlingame
Daly City

Why use momondo?

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

Finding the right flight to San Francisco is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to San Francisco with this policy.

How can momondo help me find flights to San Francisco?

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 filter your options to help you make an informed choice when booking flights to San Francisco.

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

Of course. momondo tracks the price of San Francisco 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 San Francisco trip

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Sat 18/4
Sat 25/4

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