Which airlines fly to San Francisco?

Virgin Atlantic, British Airways, 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 36 flights in this direction every week. Most depart out of Atlanta Hartsfield-Jackson, with the best deal for Delta flights to San Francisco being £234 (round-trip, Edinburgh Turnhouse to San Francisco, momondo searches within the last 72 hours). In 7,957 Delta reviews, it is rated 7.9 by momondo users.

KLM Flights to San Francisco

KLM flight deals to San Francisco start from £366 - 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 - Los Angeles is the most popular KLM departure point to San Francisco so generally has the most availability. KLM is scored a 7.8/10 in 1,386 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 14h 05m, respectively.

£265 Cheap Flights to San Francisco in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from the United Kingdom to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap return flights

08:40 - 16:10LHR-SFO

15h 30m1 stop

20:25 - 21:40SFO-LHR

18h 15m1 stop

£383SWISS

Find Deal

Thu, 2 Oct - Wed, 29 Oct

06:30 - 17:45LHR-SFO

19h 15m2 stops

13:25 - 11:10SFO-LHR

13h 45m1 stop

£383United Airlines

Find Deal

Wed, 1 Oct - Wed, 8 Oct

07:25 - 14:30LHR-SFO

15h 05m1 stop

13:05 - 07:25SFO-LHR

10h 20mdirect

£386Lufthansa

Find Deal

Fri, 26 Sep - Wed, 8 Oct

11:15 - 14:15LHR-SFO

11h 00mdirect

16:30 - 10:40SFO-LHR

10h 10mdirect

£387Virgin Atlantic

Find Deal

Fri, 26 Sep - Thu, 26 Feb

11:45 - 15:00LHR-SFO

11h 15mdirect

20:40 - 15:10SFO-LHR

10h 30mdirect

£389British Airways

Find Deal

Tue, 25 Nov - Tue, 2 Dec

06:15 - 21:58LHR-SFO

23h 43m2 stops

17:30 - 12:00SFO-LHR

10h 30mdirect

£390British Airways

Find Deal

Wed, 11 Feb - Fri, 6 Mar

16:15 - 19:20LHR-SFO

11h 05mdirect

13:05 - 07:25SFO-LHR

10h 20mdirect

£394Lufthansa

Find Deal

Sat, 27 Sep - Sat, 4 Oct

16:25 - 19:30LHR-SFO

11h 05mdirect

16:30 - 10:40SFO-LHR

10h 10mdirect

£418Virgin Atlantic

Find Deal

Wed, 15 Oct - Wed, 5 Nov

18:55 - 12:50LCY-SFO

24h 55m1 stop

05:50 - 08:10SFO-LCY

18h 20m2 stops

£433KLM

Find Deal

Fri, 31 Oct - Fri, 7 Nov

09:20 - 11:50NCL-SFO

34h 30m1 stop

13:55 - 22:55SFO-NCL

25h 00m1 stop

£1,128KLM

Find Deal

Sat, 20 Dec - Fri, 2 Jan

Fly from

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 2/10

08:40-16:10

1 stop15h 30m

San Francisco

Wed 29/10

20:25-21:40

1 stop18h 15m

£383

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 1/10

06:30-17:45

2 stops19h 15m

San Francisco

Wed 8/10

13:25-11:10

1 stop13h 45m

£383

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 26/9

07:25-14:30

1 stop15h 05m

San Francisco

Wed 8/10

13:05-07:25

Nonstop10h 20m

£386

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 26/9

11:15-14:15

Nonstop11h 00m

San Francisco

Thu 26/2

16:30-10:40

Nonstop10h 10m

£387

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 25/11

11:45-15:00

Nonstop11h 15m

San Francisco

Tue 2/12

20:40-15:10

Nonstop10h 30m

£389

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 11/2

06:15-21:58

2 stops23h 43m

San Francisco

Fri 6/3

17:30-12:00

Nonstop10h 30m

£390

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 27/9

16:15-19:20

Nonstop11h 05m

San Francisco

Sat 4/10

13:05-07:25

Nonstop10h 20m

£394

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 15/10

16:25-19:30

Nonstop11h 05m

San Francisco

Wed 5/11

16:30-10:40

Nonstop10h 10m

£418

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Fri 31/10

18:55-12:50

1 stop24h 55m

San Francisco

Fri 7/11

05:50-08:10

2 stops18h 20m

£433

Newcastle upon TyneSan Francisco

NCL - SFO

NCLSFO

Newcastle upon Tyne

Sat 20/12

09:20-11:50

1 stop34h 30m

San Francisco

Fri 2/1

13:55-22:55

1 stop25h 00m

£1,128

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 February is, on average, the cheapest month to fly to San Francisco from United Kingdom, with most prices found around £414. 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 £422.

What is the absolute cheapest flight to San Francisco?

£35 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 77% 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 Tuesday when prices can be found for as low as £555. 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 £634. 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 £472. Try not to purchase tickets at midday because they tend to be around £929. 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 £490 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 £454 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 £411 in February
MOST EXPENSIVE MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORT	July	29% more expensive	It costs about £637 for flights to San Francisco from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO SAN FRANCISCO FROM LONDON HEATHROW AIRPORT	July	208% 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	£265
Best Round-Trip Price	£383
Fastest flight time	29h 00m
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).

Search Deals

The best round-trip flight price to San Francisco from United Kingdom in the last 72 hours is £383 (London Heathrow to San Francisco).

Search Deals

The fastest flight to San Francisco from United Kingdom takes 29h 00m (Edinburgh Turnhouse to San Francisco).

Search Deals

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

Search Deals

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 86 days prior to their departure date, when tickets on average are £487. 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 £421.

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 £116 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 September 2025, there are 35 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

Vacaville

Salinas

Rohnert Park

Campbell

Sunnyvale

San Ramon

South San Francisco

Capitola

Palo Alto

Millbrae

San Bruno

Sausalito

Santa Cruz

Woodland

Redwood City

Burlingame

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

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Fri 17/10

Fri 24/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip 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 2/10. 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

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United Kingdom to San Francisco

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Recent direct flight deals from the United Kingdom to San Francisco

momondo Fare Finder

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

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?

What is the absolute cheapest flight to San Francisco?

£35 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 77% 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 14h 05m, 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