United Airlines flights from San Francisco to London Heathrow Airport (SFO - LHR)

SFO — LHR
Mar 2 — Mar 91

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 Heathrow in 2024

Find detailed information about United Airlines flights from San Francisco to Heathrow. Explore the options provided by United Airlines to plan your journey from San Francisco to Heathrow. Data last updated February 26, 2024.

Popular in

June

Cheapest in

February

Average price (all airlines)

$682

One-way from

$458

Round-trip from

$619
Highest demand for flights from San Francisco to London Heathrow; 22% potential price increase.
Best time to find cheap flights from San Francisco to London Heathrow; 4% potential price drop.
Average price for all San Francisco to London Heathrow flights (one-way and round-trip).
Cheapest one-way United Airlines flight from San Francisco to London Heathrow
Cheapest round-trip United Airlines flight from San Francisco to London

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

United Airlines offers 23 flights from San Francisco to London Heathrow Airport for under $700. Prices vary by date and time. To see all prices and select your dates, click here.

How do most travelers feel about United Airlines?

United Airlines has received a 6.9/10 rating from 26 Cheapflights user reviews. If you wish to plan your next trip from San Francisco to London Heathrow Airport with United Airlines, enter your preferred travel dates above!

Cheapest United Airlines flights from San Francisco to Heathrow

Discover the cheapest flight options specifically offered by United Airlines for travel from San Francisco to Heathrow. 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 3,409,476 searches. The data was last updated on February 26, 2024.
Fri 3/110:45 pmSFO - LHR
1 stop13h 50mUnited Airlines
Sun 3/36:30 amLHR - SFO
2 stops20h 13mUnited Airlines
Deal found 2/26$621
Thu 3/710:56 pmSFO - LHR
1 stop30h 34mUnited Airlines
Sun 3/1012:05 pmLHR - SFO
1 stop36h 10mUnited Airlines
Deal found 2/25$625
Fri 3/18:35 pmSFO - LHR
1 stop15h 00mUnited Airlines
Sun 3/39:30 amLHR - SFO
1 stop14h 35mUnited Airlines
Deal found 2/26$629

Direct flights from San Francisco to Heathrow on United Airlines

Discover the cheapest flight options specifically offered by United Airlines for travel from San Francisco to Heathrow. 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 3,409,476 searches. The data was last updated on February 26, 2024.
Mon 3/116:35 pmSFO - LHR
Nonstop10h 25mUnited Airlines
Wed 3/279:20 amLHR - SFO
Nonstop11h 10mUnited Airlines
Deal found 2/25$655
Wed 3/206:35 pmSFO - LHR
Nonstop10h 25mUnited Airlines
Thu 3/289:20 amLHR - SFO
Nonstop11h 10mUnited Airlines
Deal found 2/25$656
Tue 3/266:35 pmSFO - LHR
Nonstop10h 25mUnited Airlines
Tue 4/1612:20 pmLHR - SFO
Nonstop11h 00mUnited Airlines
Deal found 2/26$657

Last minute deals on Cheapflights

Explore last-minute flight deals on United Airlines for various destinations, including San Francisco to Heathrow. 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 26, 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 3,409,476 searches.
Thu 3/710:56 pmSFO - LHR
1 stop30h 34mUnited Airlines
Sun 3/1012:05 pmLHR - SFO
1 stop36h 10mUnited Airlines
Deal found 2/25$625
Mon 3/48:30 amSFO - LHR
1 stop14h 40mUnited Airlines
Wed 3/208:50 amLHR - SFO
1 stop15h 25mUnited Airlines
Deal found 2/26$640
Sun 3/31:00 pmSFO - LHR
Nonstop10h 30mUnited Airlines
Tue 3/126:30 amLHR - SFO
1 stop14h 05mUnited Airlines
Deal found 2/25$641

One-way United Airlines flights to Heathrow from San Francisco

Search for one-way flight options from San Francisco to Heathrow 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 3,409,476 searches. The data was last updated on February 26, 2024.
Wed 4/171:30 pmSFO - LHR
2 stops14h 50mUnited Airlines
Deal found 2/26$458
Tue 5/712:35 pmSFO - LHR
Nonstop10h 20mUnited Airlines
Deal found 2/26$459
Mon 7/811:00 amSFO - LHR
2 stops16h 10mUnited Airlines
Deal found 2/25$463

Average price of United Airlines flights from San Francisco to Heathrow

Plan your United Airlines flight from San Francisco to Heathrow by taking into account the cheapest months to travel. The average price of a one-way United Airlines flight from San Francisco to Heathrow is currently $460 while a round-trip flight costs $656. 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 Heathrow Airport in November, with an average price of $652. Conversely, traveling with United Airlines from San Francisco to London Heathrow Airport 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 Heathrow by month

Plan your trip to Heathrow 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 Heathrow Airport, 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).

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 Heathrow on another airline
Consider alternative airlines that service the Heathrow area. Flight routes are based on user searches made on Cheapflights and were last updated on February 26, 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 26, 2024.
United Airlines
7.4
Good
11,829 reviews
Overview

Boarding

7.7

Entertainment

7.1

Food

6.7

Comfort

7.2

Crew

8.1
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.