How do most travelers feel about United Airlines?

Cheapflights users who travel with United Airlines (a popular airline from San Francisco to London) have rated them a 6.8/10. This rating comes from 29 reviews. If you are looking to travel SFO-LON, search your dates above.

Can I get a flight from San Francisco to London on United Airlines for under $1,300?

Cheapflights users have found 46 United Airlines flights for under $1,300 on the SFO-LON route. Prices on flights to London from San Francisco can vary based on many factors including dates. To look at price based on your preferred dates, click here.

How far ahead should I book a flight from San Francisco to London with United Airlines?

Booking with United Airlines 4 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Francisco to London with United Airlines?

Currently, the most affordable month to book a United Airlines flight from San Francisco to London in November, with an average price of $652. Conversely, traveling with United Airlines from San Francisco to London in June will be the most expensive, with an average cost of $1,114. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Fly United Airlines from SFO to London as low as $424

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Cheapflights users flying from San Francisco to London on United Airlines typically fly into London Heathrow and depart from San Francisco. Select your dates above for pricing.

United Airlines flights from San Francisco to London in 2024

Popular in	June
Cheapest in	October
Average price (all airlines)	$1,221
One-way from	$424
Round-trip from	$530

Highest demand for flights from San Francisco to London; 22% potential price increase.

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Best time to find cheap flights from San Francisco to London; 4% potential price drop.

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Average price for all San Francisco to London flights (one-way and round-trip).

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Cheapest one-way United Airlines flight from San Francisco to London

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Cheapest round-trip United Airlines flight from San Francisco to London

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Can I get a flight from San Francisco to London on United Airlines for under $1,300?
Cheapflights users have found 46 United Airlines flights for under $1,300 on the SFO-LON route. Prices on flights to London from San Francisco can vary based on many factors including dates. To look at price based on your preferred dates, click here.
How do most travelers feel about United Airlines?
Cheapflights users who travel with United Airlines (a popular airline from San Francisco to London) have rated them a 6.8/10. This rating comes from 29 reviews. If you are looking to travel SFO-LON, search your dates above.

Cheapest United Airlines flights from San Francisco to London

Tue 6/254:00 pmSFO - LHR

Nonstop10h 25mUnited Airlines

Thu 8/224:15 pmLHR - SFO

Nonstop11h 00mUnited Airlines

Deal found 5/31$875

Pick Dates

Wed 6/263:45 pmSFO - LHR

1 stop12h 35mUnited Airlines

Wed 8/214:15 pmLHR - SFO

Nonstop11h 00mUnited Airlines

Deal found 5/31$880

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Sun 6/24:00 pmSFO - LHR

Nonstop10h 25mUnited Airlines

Thu 10/310:25 amLHR - SFO

Nonstop11h 05mUnited Airlines

Deal found 5/31$918

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Direct flights from San Francisco to London on United Airlines

Tue 10/112:35 pmSFO - LHR

Nonstop10h 20mUnited Airlines

Mon 10/710:25 amLHR - SFO

Nonstop11h 05mUnited Airlines

Deal found 5/31$548

Pick Dates

Thu 9/2612:35 pmSFO - LHR

Nonstop10h 20mUnited Airlines

Mon 10/1412:20 pmLHR - SFO

Nonstop11h 05mUnited Airlines

Deal found 5/31$598

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Wed 8/214:00 pmSFO - LHR

Nonstop10h 25mUnited Airlines

Tue 8/2712:20 pmLHR - SFO

Nonstop11h 00mUnited Airlines

Deal found 5/31$617

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Last minute deals on Cheapflights

Tue 6/118:25 amSFO - LHR

1 stop13h 30mUnited Airlines

Wed 8/288:40 amLHR - SFO

1 stop15h 25mUnited Airlines

Deal found 5/30$926

Pick Dates

Tue 6/1112:30 pmSFO - LHR

Nonstop10h 25mUnited Airlines

Tue 6/188:40 amLHR - SFO

1 stop15h 25mUnited Airlines

Deal found 5/31$977

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Sun 6/912:55 pmSFO - LHR

1 stop12h 45mUnited Airlines

Thu 6/2012:20 pmLHR - SFO

Nonstop11h 00mUnited Airlines

Deal found 5/30$978

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One-way United Airlines flights to London from San Francisco

Sat 9/2112:35 amSFO - LHR

1 stop23h 05mUnited Airlines

Deal found 5/31$424

Pick Dates

Mon 9/2312:35 amSFO - LHR

1 stop23h 05mUnited Airlines

Deal found 5/31$428

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Mon 10/2812:32 amSFO - LHR

1 stop27h 18mUnited Airlines

Deal found 6/1$443

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Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco with our price prediction graph.

Estimated round-trip price

Temperature and rainfall in London by month

LON Temperature	39.2 - 62.6 °F

LON

Temperature

39.2 - 62.6 °F

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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Fly from San Francisco to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

British Airways flights from San Francisco to London

Virgin Atlantic flights from San Francisco to London

Other United Airlines flights from San Francisco
Browse through other United Airlines flights departing from San Francisco. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

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Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

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Other airlines servicing San Francisco and London
Choose from other airlines serving San Francisco and London.

Other popular destinations in Europe
If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Flights to Manchester

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Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on June 1, 2024.

United Airlines flights from San Francisco to Honolulu

United Airlines flights from San Francisco to Cancún

United Airlines flights from San Francisco to Las Vegas

United Airlines flights from San Francisco to Orlando

United Airlines flights from San Francisco to Cancún

United Airlines flights from San Francisco to Los Angeles

United Airlines flights from San Francisco to Miami

United Airlines flights from San Francisco to Denver

United Airlines flights from San Francisco to Los Angeles

United Airlines flights from San Francisco to Fort Lauderdale

United Airlines flights from San Francisco to Los Angeles

United Airlines flights from San Francisco to Las Vegas

United Airlines flights from San Francisco to New York

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United Airlines flights from San Francisco to Newark

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United Airlines flights from San Francisco to Denver

United Airlines flights from San Francisco to Atlanta

United Airlines flights from San Francisco to Cancún

United Airlines flights from San Francisco to Los Angeles

United Airlines flights from San Francisco to Denver

United Airlines flights from San Francisco to Cancún

United Airlines flights from San Francisco to Las Vegas

United Airlines flights from San Francisco to Los Angeles

United Airlines flights from San Francisco to San Diego

See what others are saying about United Airlines

United Airlines

7.4

Good

10,754 reviews

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Overview

Recent reviews

8.0

Very good|Mar 2022

Just a normal flight - all was just fine and reasonably comfortable given the physical limitations of flight - arrived safe and on time which are the important things. The only thing that could have been better - that was controllable - was the food - I am always amazed that it can get worse than it was before but United seems to have experts in this area and they should be commended on continuing to make the food worse when it seemed like it as as bad as it could get while using actual food as inputs. I'm guessing we are pretty close to rock bottom by now but United always seems be able to give that extra effort to eliminate that last little bit of remaining quality and taste. I would recommend that United stop having their accountants plan and prepare meals and snacks and let actual chefs, or at least cooks prepare them in the future.

6.0

Okay|Apr 2024

The staff were pleasant. There was no food or entertainment.

2.0

Poor|Nov 2021

Clear attendant at the Logan airport was awful. Rude and inconsiderate to everyone. Let every clear customer in front of every priority United customer. Usually they switch off groups but we were waiting 30 minutes when we were third from the front because every clear customer was let in front of us.

8.0

Very good|Jan 2022

Everything was great. Even though the flight got delayed 10 minutes we arrived on time

5.9

Fair|Aug 2021

Boarding was too long. The Seats are too thin. The snacks were water and a cookie.

1 out of 3585

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Cheapflights users flying from San Francisco to London on United Airlines typically fly into London Heathrow and depart from San Francisco. Select your dates above for pricing.

United Airlines flights from San Francisco to London in 2024

Find detailed information about United Airlines flights from San Francisco to London. Explore the options provided by United Airlines to plan your journey from San Francisco to London. Data last updated June 1, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from San Francisco to London on United Airlines for under $1,300?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from San Francisco to London

Direct flights from San Francisco to London on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to London from San Francisco

Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco with our price prediction graph.

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from San Francisco to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Other United Airlines flights from San Francisco
Browse through other United Airlines flights departing from San Francisco. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Browse through other United Airlines flights departing from San Francisco. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing San Francisco and London
Choose from other airlines serving San Francisco and London.

Choose from other airlines serving San Francisco and London.

Other popular destinations in Europe
If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

If London is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Popular flights with United Airlines
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on June 1, 2024.

See what others are saying about United Airlines

Overview

Recent reviews

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Flights

United Airlines flights from San Francisco to London (SFO - LON)

Cheapflights users flying from San Francisco to London on United Airlines typically fly into London Heathrow and depart from San Francisco. Select your dates above for pricing.

United Airlines flights from San Francisco to London in 2024

Find detailed information about United Airlines flights from San Francisco to London. Explore the options provided by United Airlines to plan your journey from San Francisco to London. Data last updated June 1, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from San Francisco to London on United Airlines for under $1,300?

How do most travelers feel about United Airlines?

Cheapest United Airlines flights from San Francisco to London

Direct flights from San Francisco to London on United Airlines

Last minute deals on Cheapflights

One-way United Airlines flights to London from San Francisco

Best time to book a flight from San Francisco to London

Have a flexible travel schedule? Discover the best time to fly to London from San Francisco with our price prediction graph.

Temperature and rainfall in London by month

Plan your trip to London by taking into account the average temperature and rainfall totals by month.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from San Francisco to London on another airlineConsider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.

See what others are saying about United Airlines

Overview

100% Free

Book with Flexibility

Travel Smart

Fly from San Francisco to London on another airline
Consider alternative airlines that service the London area. Flight routes are based on user searches made on Cheapflights and were last updated on June 1, 2024.