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

SFO — LON
Feb 27 — Mar 51

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 February 22, 2024.

Popular in

June

Cheapest in

October

Average price (all airlines)

$680

One-way from

$459

Round-trip from

$639
Highest demand for flights from San Francisco to London; 21% potential price increase.
Best time to find cheap flights from San Francisco to London; 4% potential price drop.
Average price for all San Francisco to London flights (one-way and round-trip).
Cheapest one-way United Airlines flight from San Francisco to London
Cheapest round-trip United Airlines flight from San Francisco to London

Can I get a flight from San Francisco to London on United Airlines for under $700?

Cheapflights users have found 25 United Airlines flights for under $700 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 6.9/10. This rating comes from 26 reviews. If you are looking to travel SFO-LON, search your dates above.

Cheapest United Airlines flights from San Francisco to London

Discover the cheapest flight options specifically offered by United Airlines for travel from San Francisco to London. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,442,422 searches. The data was last updated on February 22, 2024.
Tue 3/198:30 amSFO - LHR
1 stop15h 40mUnited Airlines
Tue 3/268:50 amLHR - SFO
1 stop15h 25mUnited Airlines
Deal found 2/22$639
Sun 3/102:00 pmSFO - LHR
Nonstop10h 30mUnited Airlines
Tue 3/268:50 amLHR - SFO
1 stop15h 25mUnited Airlines
Deal found 2/20$640
Mon 3/116:35 pmSFO - LHR
Nonstop10h 25mUnited Airlines
Tue 3/196:30 amLHR - SFO
1 stop14h 05mUnited Airlines
Deal found 2/21$641

Direct flights from San Francisco to London on United Airlines

Discover the cheapest flight options specifically offered by United Airlines for travel from San Francisco to London. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,442,422 searches. The data was last updated on February 22, 2024.
Mon 3/116:35 pmSFO - LHR
Nonstop10h 25mUnited Airlines
Thu 3/219:20 amLHR - SFO
Nonstop11h 10mUnited Airlines
Deal found 2/20$639
Wed 4/177:45 pmSFO - LHR
Nonstop10h 25mUnited Airlines
Wed 4/244:15 pmLHR - SFO
Nonstop11h 00mUnited Airlines
Deal found 2/21$640
Tue 3/196:35 pmSFO - LHR
Nonstop10h 25mUnited Airlines
Tue 3/261:45 pmLHR - SFO
Nonstop11h 10mUnited Airlines
Deal found 2/22$655

Last minute deals on Cheapflights

Explore last-minute flight deals on United Airlines for various destinations, including San Francisco to London. Discover attractive deals on flights departing soon. Keep an eye on the latest last-minute deals to find great opportunities for spontaneous travel. Please note that prices are subject to change and availability may vary. Data last updated February 22, 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 3,442,422 searches.
Wed 2/2810:47 amSFO - LHR
1 stop17h 03mUnited Airlines
Wed 3/138:50 amLHR - SFO
1 stop15h 25mUnited Airlines
Deal found 2/21$669
Wed 2/281:10 pmSFO - LHR
1 stop14h 40mUnited Airlines
Tue 3/59:30 amLHR - SFO
1 stop14h 35mUnited Airlines
Deal found 2/21$671
Wed 2/284:30 pmSFO - LHR
1 stop13h 00mUnited Airlines
Wed 3/138:50 amLHR - SFO
1 stop15h 25mUnited Airlines
Deal found 2/21$674

One-way United Airlines flights to London from San Francisco

Search for one-way flight options from San Francisco to London specifically provided by United Airlines. Find affordable one-way fares from United Airlines and compare prices with other airlines. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 3,442,422 searches. The data was last updated on February 22, 2024.
Wed 5/18:15 amSFO - LHR
1 stop14h 15mUnited Airlines
Deal found 2/21$459
Wed 3/2010:57 amSFO - LHR
2 stops17h 08mUnited Airlines
Deal found 2/22$460
Sun 4/213:55 pmSFO - LHR
1 stop12h 25mUnited Airlines
Deal found 2/22$463

Average price of United Airlines flights from San Francisco to London

Plan your United Airlines flight from San Francisco to London by taking into account the cheapest months to travel. The average price of a one-way United Airlines flight from San Francisco to London is currently $461 while a round-trip flight costs $645. Price data was last updated on February 18, 2024.

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 $1,187. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

January

$675

February

$665

March

$710

April

$737

May

$769

June

$1,187

July

$1,017

August

$801

September

$751

October

$717

November

$652

December

$676

Temperature and rainfall in London by month

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

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 February 22, 2024.

See what others are saying about United Airlines

Read reviews and see what other travelers are saying about their experiences with United Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing United Airlines for your next flight. Reviews last updated February 22, 2024.
United Airlines
7.4
Good
11,872 reviews
Overview

Comfort

7.2

Food

6.7

Entertainment

7.1

Boarding

7.7

Crew

8.1
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