Cheap flights from San Francisco to London Heathrow Airport from £173
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to London Heathrow Airport departing on 6/8. 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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Finnair flights from San Francisco to London Heathrow Airport
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Scandinavian Airlines flights from San Francisco to London Heathrow Airport
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How to get the cheapest flight ticket from San Francisco to London Heathrow Airport
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
What is the typical price of a round-trip flight between San Francisco and London Heathrow Airport?
What is the cheapest month to fly to London Heathrow Airport?
In general, October is the cheapest month to fly from San Francisco to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £496. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from San Francisco averaging around £516.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from San Francisco is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £533. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £740.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from San Francisco to London Heathrow Airport in the afternoon for as low as £613. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £810 on average. Flights to London Heathrow Airport from San Francisco at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest San Francisco to London Heathrow flight route?
Fly from San Francisco to London Heathrow for the best San Francisco - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from San Francisco when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £610 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Francisco for as low as £590 on momondo.
What cabin class options are available on San Francisco to London Heathrow flights?
There are 3 cabin classes available to choose from on San Francisco to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from San Francisco to London Heathrow?
TAP AIR PORTUGAL, SWISS, and WestJet are the most popular carriers operating from San Francisco to London Heathrow
Which airlines fly to London Heathrow Airport?
Virgin Atlantic, British Airways and United Airlines are the top three most popular airlines that fly to London Heathrow Airport from San Francisco according to our data. Virgin Atlantic is the first choice among our users, with 41% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 10 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Francisco to London Heathrow Airport on average per day?
The number of flights available between San Francisco and London Heathrow Airport is 13 per day as of March 2025. The most frequent departure time is 18:00, with 59% of daily flights leaving in the evening.
How many flights depart from San Francisco to London Heathrow Airport on average per week?
As of March 2025, there are 96 flights per week flying from San Francisco to London Heathrow Airport. The most common day of the week flights depart is Wed, with 33% of flights taking off on this day.
When to book flights from San Francisco to London Heathrow Airport
Cheap San Francisco to London Heathrow Airport (SFO to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to London Heathrow Airport
How far is San Francisco to London Heathrow by plane?
The distance between San Francisco and London Heathrow is about 5341.3 mi. Typically, this will take 10h 20m by plane in normal conditions.
When did momondo last update prices for flights from San Francisco Airport to London Heathrow Airport?
Prices for flights from San Francisco Airport to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Airport to London Heathrow Airport?
There are 10 operators available for flights from San Francisco Airport to London Heathrow Airport as of March 2025.
How old do you have to be to fly from San Francisco Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Francisco to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from San Francisco to London Heathrow Airport is Boeing 777, representing 30.16% of all bookings. The subsequent popular models are Airbus A380-800 at 23.81%, Boeing 787-9 Dreamliner at 23.23%, and Airbus A380 at 7.63%.
What is the most popular airline from San Francisco to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to London Heathrow Airport is Virgin Atlantic (31% of total bookings). The next most popular airlines are British Airways (18%), United Airlines (17%), and Lufthansa (13%).
Best airlines flying from San Francisco to London Heathrow Airport
Compare and see reviews for airlines that fly from San Francisco to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £379 | Free Cancellation | Rating 7.6 1,267 reviews | |||
| PriceFrom £406 | Free Cancellation | Rating 7.1 1,827 reviews | |||
| PriceFrom £438 | Free Cancellation | Rating 7.4 634 reviews | |||
| PriceFrom £444 | Free Cancellation | Rating 7.0 2,651 reviews | |||
| PriceFrom £447 | Free Cancellation | Rating 6.6 6,712 reviews | |||
| PriceFrom £451 | Free Cancellation | Rating 7.0 8,986 reviews | |||
| PriceFrom £459 | Free Cancellation | Rating 7.8 1,321 reviews | |||
| PriceFrom £472 | Free Cancellation | Rating 7.4 8,603 reviews | |||
| PriceFrom £500 | Free Cancellation | Rating 6.7 6,956 reviews | |||
| PriceFrom £530 | Free Cancellation | Rating 8.0 7,896 reviews |
Delta Flights From San Francisco to London Heathrow Airport
The lowest priced Delta flight from San Francisco to London Heathrow Airport from the last 72 hours was £686. Generally, Delta has 3 flights on this route every week with an average price of £931. Delta is rated 8.0/10 by our users.
KLM Flights From San Francisco to London Heathrow Airport
Across 1,321 KLM reviews on momondo, the average score is 7.8/10. KLM flies from San Francisco to London Heathrow Airport about 3 times each week, with ticket deals ranging from £594 to £681. Price data is based on momondo searches in the last 72 hours.
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Why should I use momondo to find a flight deal from San Francisco to London?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to London . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from San Francisco to London with flexible booking policies on momondo?
Flights from San Francisco to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from San Francisco to London?
momondo provides multiple filters to help you find the best flight to London from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from San Francisco to London right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of San Francisco to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.