Flights to San Francisco

£248 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 27/3. 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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Find the cheapest flights from the United Kingdom to San Francisco

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
18:00 - 17:36
LHR
-
SFO
31h 36m
2 stops
Air Canada Logo
08:49 - 06:30
SFO
-
LHR
13h 41m
1 stop
£390Air Canada
Mon, 26 Jan - Tue, 3 Feb
SWISS Logo
09:20 - 16:30
LCY
-
SFO
15h 10m
1 stop
SWISS Logo
19:25 - 17:05
SFO
-
LCY
13h 40m
1 stop
£390SWISS
Wed, 28 Jan - Mon, 2 Feb
British Airways Logo
09:50 - 15:35
LHR
-
SFO
13h 45m
1 stop
British Airways Logo
22:30 - 22:10
SFO
-
LHR
15h 40m
1 stop
£391British Airways
Wed, 28 Jan - Sat, 31 Jan
United Airlines Logo
15:20 - 23:04
LHR
-
SFO
15h 44m
1 stop
United Airlines Logo
17:25 - 12:00
SFO
-
LHR
10h 35mdirect
£392United Airlines
Sat, 21 Feb - Sat, 7 Mar
Austrian Airlines Logo
13:45 - 17:00
LHR
-
SFO
11h 15mdirect
Austrian Airlines Logo
13:40 - 11:50
SFO
-
LHR
14h 10m
1 stop
£392Austrian Airlines
Sat, 14 Feb - Thu, 7 May
British Airways Logo
09:50 - 15:35
LHR
-
SFO
13h 45m
1 stop
British Airways Logo
06:20 - 14:00
SFO
-
LHR
23h 40m
1 stop
£396British Airways
Sat, 21 Feb - Sat, 7 Mar
Lufthansa Logo
10:05 - 13:20
LHR
-
SFO
11h 15mdirect
Lufthansa Logo
18:25 - 12:00
SFO
-
LHR
10h 35mdirect
£397Lufthansa
Wed, 4 Mar - Sat, 21 Mar
Lufthansa Logo
09:50 - 21:10
LCY
-
SFO
18h 20m
1 stop
Lufthansa Logo
14:40 - 17:55
SFO
-
LCY
19h 15m
1 stop
£398Lufthansa
Wed, 25 Mar - Mon, 30 Mar
United Airlines Logo
09:25 - 17:34
EDI
-
SFO
16h 09m
1 stop
United Airlines Logo
05:00 - 07:55
SFO
-
EDI
18h 55m
2 stops
£480United Airlines
Mon, 9 Feb - Mon, 23 Feb
Virgin Atlantic Logo
06:10 - 18:36
LBA
-
SFO
20h 26m
2 stops
Virgin Atlantic Logo
05:45 - 16:45
SFO
-
LBA
27h 00m
2 stops
£534Virgin Atlantic
Sat, 28 Feb - Sat, 7 Mar

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 16 January 2026.
Use the filters below to find and compare flights to San Francisco that are best for you.

Fly from

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 26/1

18:00-17:36

2 stops31h 36m

San Francisco

Tue 3/2

08:49-06:30

1 stop13h 41m

£390

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Wed 28/1

09:20-16:30

1 stop15h 10m

San Francisco

Mon 2/2

19:25-17:05

1 stop13h 40m

£390

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

09:50-15:35

1 stop13h 45m

San Francisco

Sat 31/1

22:30-22:10

1 stop15h 40m

£391

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 21/2

15:20-23:04

1 stop15h 44m

San Francisco

Sat 7/3

17:25-12:00

Nonstop10h 35m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 14/2

13:45-17:00

Nonstop11h 15m

San Francisco

Thu 7/5

13:40-11:50

1 stop14h 10m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 21/2

09:50-15:35

1 stop13h 45m

San Francisco

Sat 7/3

06:20-14:00

1 stop23h 40m

£396

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/3

10:05-13:20

Nonstop11h 15m

San Francisco

Sat 21/3

18:25-12:00

Nonstop10h 35m

£397

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Wed 25/3

09:50-21:10

1 stop18h 20m

San Francisco

Mon 30/3

14:40-17:55

1 stop19h 15m

£398

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Mon 9/2

09:25-17:34

1 stop16h 09m

San Francisco

Mon 23/2

05:00-07:55

2 stops18h 55m

£480

LeedsSan Francisco

LBA - SFO

LBASFO

Leeds/Bradford

Sat 28/2

06:10-18:36

2 stops20h 26m

San Francisco

Sat 7/3

05:45-16:45

2 stops27h 00m

£534

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 £421. 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 £427.

What is the absolute cheapest flight to San Francisco?

£87 is the cheapest deal found on momondo in the last two weeks for a flight to San Francisco. This flight is from Los Angeles and is 54% 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 £578. 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 £674. 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 £918. 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 £507 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 £477 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 AIRPORTFebruary18% cheaperFlying from London Heathrow Airport to San Francisco costs on average just £420 in February
MOST EXPENSIVE MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORTDecember29% more expensiveIt costs about £658 for flights to San Francisco from London Heathrow Airport in December
MOST POPULAR MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORTJuly246% 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

£248

Best Round-Trip Price

£390

Fastest flight time

14h 50m

Popular in

July
The best one-way flight price to San Francisco from United Kingdom in the last 72 hours is £248 (Edinburgh Turnhouse to San Francisco).
The best round-trip flight price to San Francisco from United Kingdom in the last 72 hours is £390 (London Heathrow to San Francisco).
The fastest flight to San Francisco from United Kingdom takes 14h 50m (Leeds/Bradford to San Francisco).
July has the highest demand for flights to San Francisco, with a 15% 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 £500. 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 £424.

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 Santa Rosa Sonoma County Airport for £118 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
Big Sur
Rohnert Park
Campbell
Palo Alto
Santa Cruz
South San Francisco
Novato
Capitola
Sausalito
San Bruno
Woodland
Aptos
Redwood City
Pacific Grove
Burlingame
Mill Valley
Modesto

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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