Which airlines fly to San Francisco?

British Airways, Virgin Atlantic, Lufthansa and United Airlines are the most popular airlines that fly from United Kingdom to San Francisco on a routine basis, according to our data. You should be able to find flights to San Francisco with these airlines and other airlines flying from United Kingdom.

Delta Flights to San Francisco

The most popular airline for flights to San Francisco on momondo is Delta, which operates 39 flights in this direction every week. Most depart out of Atlanta Hartsfield-Jackson, with the best deal for Delta flights to San Francisco being £242 (round-trip, London Heathrow to San Francisco, momondo searches within the last 72 hours). In 8,007 Delta reviews, it is rated 7.9 by momondo users.

KLM Flights to San Francisco

KLM flight deals to San Francisco start from £378 - this is the best price found recently on momondo, and was a return journey departing from Birmingham. Over any normal week, KLM flight prices are typically higher, but vary depending on where you fly from - New York John F Kennedy Intl is the most popular KLM departure point to San Francisco so generally has the most availability. KLM is scored a 7.7/10 in 1,410 reviews.

How long does it take to fly to San Francisco?

If you’re flying from a popular airport in United Kingdom, such as London Heathrow or Manchester, and flying into San Francisco, then you can expect flight times to average 11h and 15h 30m, respectively.

£309 Cheap Flights to San Francisco in 2025/26

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19:55 - 14:35LHR-SFO

26h 40m1 stop

16:35 - 18:55SFO-LHR

18h 20m1 stop

£406TAP AIR PORTUGAL

Find Deal

Sun, 7 Dec - Wed, 14 Jan

19:55 - 14:35LHR-SFO

26h 40m1 stop

16:35 - 22:40SFO-LHR

22h 05m1 stop

£411TAP AIR PORTUGAL

Find Deal

Sun, 7 Dec - Wed, 14 Jan

06:40 - 14:35LHR-SFO

15h 55m1 stop

16:40 - 16:00SFO-LHR

15h 20m1 stop

£412Scandinavian Airlines

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Thu, 27 Nov - Sun, 30 Nov

19:30 - 14:35LHR-SFO

27h 05m1 stop

16:40 - 16:00SFO-LHR

15h 20m1 stop

£413Scandinavian Airlines

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Wed, 3 Dec - Fri, 27 Feb

18:55 - 12:50LCY-SFO

24h 55m1 stop

13:45 - 16:40SFO-LCY

18h 55m1 stop

£476Virgin Atlantic

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Fri, 27 Mar - Tue, 14 Apr

20:10 - 11:45LCY-SFO

23h 35m1 stop

15:00 - 18:30SFO-LCY

19h 30m2 stops

£483Virgin Atlantic

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Tue, 31 Mar - Sun, 12 Apr

06:50 - 15:00EDI-SFO

16h 10m1 stop

17:30 - 17:40SFO-EDI

16h 10m1 stop

£547British Airways

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Tue, 13 Jan - Thu, 26 Feb

07:50 - 15:00EDI-SFO

15h 10m1 stop

17:30 - 17:40SFO-EDI

16h 10m1 stop

£549British Airways

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Tue, 13 Jan - Thu, 26 Feb

08:45 - 20:10BHX-SFO

19h 25m1 stop

13:35 - 17:05SFO-BHX

19h 30m2 stops

£574Lufthansa

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Mon, 16 Feb - Thu, 26 Feb

06:00 - 19:45BHX-SFO

21h 45m2 stops

09:25 - 12:35SFO-BHX

19h 10m2 stops

£585United Airlines

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Mon, 16 Feb - Thu, 26 Feb

Fly from

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 7/12

19:55-14:35

1 stop26h 40m

San Francisco

Wed 14/1

16:35-18:55

1 stop18h 20m

£406

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 7/12

19:55-14:35

1 stop26h 40m

San Francisco

Wed 14/1

16:35-22:40

1 stop22h 05m

£411

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 27/11

06:40-14:35

1 stop15h 55m

San Francisco

Sun 30/11

16:40-16:00

1 stop15h 20m

£412

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 3/12

19:30-14:35

1 stop27h 05m

San Francisco

Fri 27/2

16:40-16:00

1 stop15h 20m

£413

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Fri 27/3

18:55-12:50

1 stop24h 55m

San Francisco

Tue 14/4

13:45-16:40

1 stop18h 55m

£476

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Tue 31/3

20:10-11:45

1 stop23h 35m

San Francisco

Sun 12/4

15:00-18:30

2 stops19h 30m

£483

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Tue 13/1

06:50-15:00

1 stop16h 10m

San Francisco

Thu 26/2

17:30-17:40

1 stop16h 10m

£547

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Tue 13/1

07:50-15:00

1 stop15h 10m

San Francisco

Thu 26/2

17:30-17:40

1 stop16h 10m

£549

BirminghamSan Francisco

BHX - SFO

BHXSFO

Birmingham

Mon 16/2

08:45-20:10

1 stop19h 25m

San Francisco

Thu 26/2

13:35-17:05

2 stops19h 30m

£574

BirminghamSan Francisco

BHX - SFO

BHXSFO

Birmingham

Mon 16/2

06:00-19:45

2 stops21h 45m

San Francisco

Thu 26/2

09:25-12:35

2 stops19h 10m

£585

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

San Francisco flights insights and trends

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

Prices

Other information

What is the cheapest month to fly to San Francisco?

The month of September is, on average, the cheapest month to fly to San Francisco from United Kingdom, with most prices found around £436. If you are unable to visit San Francisco during the month of September, then departing from United Kingdom during the month February is also very affordable. Most momondo users find prices during this month for around £440.

What is the absolute cheapest flight to San Francisco?

£74 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 50% 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 £593. 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 £690. 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 evening. Flights from United Kingdom to San Francisco during this time can be as low as £489. Try not to purchase tickets at midday because they tend to be around £981. 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 £515 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

Find flights from London Heathrow Airport to San Francisco

CHEAPEST MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORT	February	17% cheaper	Flying from London Heathrow Airport to San Francisco costs on average just £429 in February
MOST EXPENSIVE MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORT	July	28% more expensive	It costs about £662 for flights to San Francisco from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORT	July	220% more users visited	More 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	£309
Best Round-Trip Price	£406
Fastest flight time	13h 45m
Popular in	July

The best one-way flight price to San Francisco from United Kingdom in the last 72 hours is £309 (Glasgow Intl to San Francisco).

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The best round-trip flight price to San Francisco from United Kingdom in the last 72 hours is £406 (London Heathrow to San Francisco).

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The fastest flight to San Francisco from United Kingdom takes 13h 45m (London Heathrow to San Francisco).

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July has the highest demand for flights to San Francisco, with a 16% price increase on average.

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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 £510. 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 £445.

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 £120 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?

As of November 2025, there are 32 operators available to choose from 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.

Carmel-by-the-Sea

Santa Clara

Seaside

Big Sur

Rohnert Park

Sunnyvale

San Ramon

South San Francisco

Capitola

Campbell

Palo Alto

Sausalito

San Bruno

Woodland

Santa Cruz

Redwood City

Burlingame

Modesto

Aptos

Fremont

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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£309 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 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

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Filter for what you want

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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?

What is the absolute cheapest flight to San Francisco?

£74 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 50% 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?

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

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

How long does it take to fly to San Francisco?

If you’re flying from a popular airport in United Kingdom, such as London Heathrow or Manchester, and flying into San Francisco, then you can expect flight times to average 11h and 15h 30m, respectively.

Cheapest flights to San Francisco

Find the cheapest flights to San Francisco from your nearest city or airport

Cheap San Francisco flight deals and tips

Summary info about San Francisco flight prices, duration and airlines

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Popular in

Frequently asked questions about flying to San Francisco

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

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

Is there an alternative airport near San Francisco?

Is there a cheaper alternative to flying into San Francisco?

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

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?

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

Travelling to a place near San Francisco?

Why use momondo?

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

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

How can momondo help me find flights to San Francisco?

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

An easier way to manage your San Francisco trip

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to San Francisco

Popular Flights to San Francisco

Popular routes according to searches in the past day on momondo