Cheap United flights from San Francisco to London (SFO to LHR)

Find The Best Day To Fly from San Francisco to London

Amazing United SFO to LHR Flight Deals

The cheapest flights to Heathrow found within the past 7 days were $631 round trip and one way. Prices and availability subject to change. Additional terms may apply.

Wed, Nov 13 - Tue, Nov 19
SFO
San Francisco
LHR
London
$631 Roundtrip, found 1 hour ago
$631
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Nov 13 from San Francisco to London, returning Tue, Nov 19, priced at $631 found 1 hour ago

LHR From SFO Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Mercure London Earls Court

Mercure London Earls Court

4 out of 5
per person
Dec 21 - Dec 26
found 15 hours ago
Roundtrip non-stop flight included
San Francisco (SFO) to London (LHR)
Pestana Chelsea Bridge Hotel & SPA

Pestana Chelsea Bridge Hotel & SPA

4 out of 5
per person
Dec 21 - Dec 26
found 15 hours ago
Roundtrip non-stop flight included
San Francisco (SFO) to London (LHR)
Mercure London Bridge

Mercure London Bridge

4 out of 5
per person
Dec 21 - Dec 26
found 15 hours ago
Roundtrip non-stop flight included
San Francisco (SFO) to London (LHR)
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Frequently asked questions

Can I catch a flight from SFO to London Heathrow right now?
It’s always wise to learn about any quarantine requirements and travel advice reports in place in your destination. Ensure you visit the Covid-19 Travel Advisor for up-to-date information on flying to London Heathrow.
What terminal is United Airlines at San Francisco Airport?
If you’re flying with United Airlines from San Francisco Airport, you’ll usually be boarding from terminal I. If you’re jetting to Heathrow Airport from here, you’re most likely to be pulling in at terminal 2.
Are there United Airlines non-stop flights from SFO to LHR?
The answer is yes. Save yourself time and trouble and fly straight from San Francisco Intl. Airport (SFO) to LHR with United Airlines. Avoid lengthy stopovers, reduce the risk of losing your belongings and arrive at your destination faster — direct flights are the preferred way to travel for many.
How long is a United Airlines flight from SFO to LHR?
If you’re into a good movie marathon, you probably won’t mind the fact that your United Airlines flight from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR) will take about 11 hours and 45 minutes. Remember to download all your films before you climb aboard the plane, or simply get stuck into the in-flight entertainment.
What type of aircraft does United Airlines fly from SFO to LHR?
United Airlines usually uses the Boeing 787-9 or the Boeing 777 on the route between SFO and LHR.
How many direct and indirect flights does United Airlines fly from SFO to LHR?
United Airlines operates roughly 4 flights every day from San Francisco Airport to LHR.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to London Heathrow, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from San Francisco SFO to London LHR 

To find the best deals on flights to San Francisco from London with United, just enter your travel dates, filter by United, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from San Francisco SFO to London LHR with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $631 to $631, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from San Francisco SFO to London LHR 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from San Francisco to London costs from . Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to London LHR from  San Francisco SFO with United 

To find a cheap United flight from San Francisco SFO to London LHR, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from San Francisco SFO to London LHR 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from San Francisco SFO to London LHR with United 

If you’re keen to be on London soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around 26 hour(s) 35 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from San Francisco SFO to London LHR 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to London LHR from  San Francisco SFO with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to London

Hilton Garden Inn London Heathrow Terminal 2 and 3
Hilton Garden Inn London Heathrow Terminal 2 and 3
3.5 out of 5
Heathrow T2, Hounslow, England
This hotel features a restaurant, a gym, and a bar/lounge. WiFi in public areas is free. A 24-hour business center, a snack bar/deli, and express check-out are ...
8.8/10 Excellent! (4,129 reviews)
"Stayed the night prior to departing back home to USA. Good place to wind down the day before a long flight. Walkable to the departure gates."

Reviewed on Oct 27, 2024

Hilton Garden Inn London Heathrow Terminal 2 and 3
Renaissance London Heathrow Hotel
Renaissance London Heathrow Hotel
4 out of 5
Bath Road, Heathrow, Hounslow, England
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the business center, free WiFi in public areas, and ...
8.8/10 Excellent! (2,167 reviews)
"Very convenient for the airport lots of parking and a hoppa transfer bus. Food in the Market Garden restaurant is good quality and well presented. Bedrooms are off very long corridors but are clean and comfortable"

Reviewed on Oct 28, 2024

Renaissance London Heathrow Hotel
Leonardo London Heathrow Airport
Leonardo London Heathrow Airport
4 out of 5
Bath Road, West Drayton, England
This hotel features a restaurant, a gym, and a bar/lounge. Traveling on business? Take advantage of the business center, free WiFi in public areas, and airport ...
8.6/10 Excellent! (5,002 reviews)
"Nice and modern"

Reviewed on Oct 27, 2024

Leonardo London Heathrow Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.