£240 Cheap Flights from San Francisco (SFO) to London (LHR)

You can find cheap one-way flights from £240 and cheap return flights £569 SFO to LHR with Expedia. One-way flights typically cost between £307 and £2,177, and return flights often range between £606 and £4,898. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SFO to LHR ticket fares go up or down.

The cheapest months to fly from San Francisco, CA (SFO) to London (LHR) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

There are 3 airlines offering direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR). Here are the carriers:
* United operates 21 direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR) every week.
* British Airways operates 14 direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR) every week.
* Virgin Atlantic operates 11 direct flights from San Francisco International Airport (SFO) to London Heathrow (LHR) every week.

To find a cheap flight from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) will differ from traveller to traveller. If you like to fly early, United offers early morning flights. If price is the most important factor, Virgin Atlantic typically offers the lowest fares. American Airlines offers the most daily flights from SFO to LHR, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find around 7 nonstop flights per day from San Francisco Intl. (SFO) to London Heathrow (LHR). For even more choices, look at flights that include layovers, as there are approximately 156 connecting flights per day. Some common connection points include John F. Kennedy Intl. (JFK), Logan Intl. (BOS), and Los Angeles Intl. (LAX).

The earliest flight from San Francisco International Airport (SFO) to London Heathrow (LHR) typically departs around 12:00 AM local time. This service is operated by Delta and is a seasonal offering, active in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from San Francisco International Airport (SFO) to London Heathrow (LHR) on a Wednesday, with around 178 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Flight schedules are quite consistent throughout the week, so you'll have plenty of choices no matter which day you choose to fly.

The most popular departure times for flights from San Francisco Intl. (SFO) to Heathrow (LHR) are in the late afternoon, from 3pm to 6pm. Many major carriers, including Virgin Atlantic, United and British Airways, offer flights during this window. Many travellers prefer these times as they allow for a full day of activities before heading to the airport, and you'll arrive in London ready to start your day.

When flying from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow), a nonstop flight typically takes around 10 hours 30 minutes. This route covers a distance of approximately 8,618 kilometers. If you opt for a one-stop flight, your journey will usually be longer, taking about 14 hours. Flights with two or more stops generally take even more time, averaging around 16 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and specific routing.

You can fly business class or first class between SFO and LHR. Airlines that offer business class service on this route include:

* Virgin Atlantic
* Swiss International Air Lines
* TAP Portugal
* Lufthansa
* Air France
* Iberia
* SAS
* ITA Airways
* Aer Lingus
* KLM
* Korean Air
* Singapore Airlines
* Turkish Airlines
* Alaska Airlines
* LOT-Polish Airlines
* British Airways
* Air Canada
* JetBlue Airways
* Skywest Air
* Delta
* United
* Finnair
* Horizon Air
* American Airlines
* Condor

First class cabins are available on:

* Swiss International Air Lines
* Lufthansa
* Alaska Airlines
* British Airways
* United
* American Airlines

A direct, return business class ticket from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) typically costs between £6,554 - £12,500. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) if you opt for a connecting flight.

It's easy to earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to London from San Francisco Intl. (SFO), you can fly directly into Heathrow (LHR). Some flights may connect through major hubs like Logan Intl. (BOS), Los Angeles Intl. (LAX), or Kastrup (CPH) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.