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

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

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to London.

What documentation or ID do you need to fly to London?

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

₹ 45,225 Cheap Flights from San Francisco to London in 2025/26

1 adult

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LON-SFO

13878 kmmulti-stop

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How to get the cheapest flight ticket from San Francisco to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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Other information

What is the cheapest month to fly to London?

The month of October is, on average, the cheapest month to fly to London from San Francisco, with most prices found around ₹ 56,728. The month of September is another great option to travel to London, with average flight prices from San Francisco averaging around ₹ 58,221.

What is the cheapest day to depart on your flight to London?

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as ₹ 83,834. On the other hand, Tuesday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travellers. As a result, prices tend to be around ₹ 104,706.

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

According to our data, the cheapest time of day to fly to London is at midday. momondo users have found flights departing from San Francisco to London at midday for as low as ₹ 76,874. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to London are more costly in the evening, with an average ticket price of ₹ 96,624. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest San Francisco to London flight route?

Fly from San Francisco to London Heathrow for the best San Francisco - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around ₹ 67,354 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Francisco for as low as ₹ 61,997 on momondo.

What cabin class options are available on San Francisco to London flights?

There are 3 cabin classes available to choose from on San Francisco to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Francisco to London flights?

You could potentially save up to 58% on your flight if you consider stops on a San Francisco to London flight.

How have San Francisco to London flight prices changed over time?

As of September 2025, prices for San Francisco to London flights are approximately 94% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to London

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap San Francisco to London (SFO to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to London

Best price found	₹ 31,060
Direct flights	None

The best one-way flight to London from San Francisco in the past 72 hours is ₹ 31,060. The best return flight deal from San Francisco to London found on momondo in the last 72 hours is ₹ 72,989.

There are no direct flights from San Francisco to London. Popular non-direct route for this connection is San Francisco Airport - London Heathrow Airport.

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How far is San Francisco to London by plane?
A flight from San Francisco to London will travel around 8609.4 km.
When did momondo last update prices for flights from San Francisco Airport to London?
Prices for flights from San Francisco Airport to London are refreshed on a daily basis.
How old do you have to be to fly from San Francisco Airport to London?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from San Francisco to London?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Francisco to London is Boeing 777 (30.97% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (24.89%), Airbus A380-800 (14.74%), and Boeing 777-300ER (10.55%).

Best airlines flying from San Francisco to London

Compare and see reviews for airlines that fly from San Francisco to London with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom ₹ 43,794	Free Cancellation	Rating 7.4 8,926 reviews		Search United Airlines flights

United Airlines Flights From San Francisco to London
The lowest priced United Airlines flight from San Francisco to London from the last 72 hours was ₹ 499. Generally, United Airlines has 21 flights on this route every week with an average price of ₹ 865. United Airlines is rated 7.4/10 by our users.

Milton Keynes

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Southall

Watford

Luton

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Bedford

Harrow

Hastings

Winchester

Croydon

Lymington

Hayes

Richmond

Wembley

Uxbridge

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to London for you.

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

Yes. All flights to London from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Francisco to London?

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

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

Yes. momondo can track prices for San Francisco to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.