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Amazing United SFO to LHR Flight Deals

The cheapest flights to Heathrow found within the past 7 days were $654 round trip and $421 one way. Prices and availability subject to change. Additional terms may apply.


Carrier Flight Depart SFO Arrive LHR Mon
9/28
Tue
9/29
Wed
9/30
Thu
10/1
Fri
10/2
Sat
10/3
Sun
10/4
Stops
UA 901 02:10 pm 08:30 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)

FAQs about United Airlines Flights from SFO to LHR

What terminal is United Airlines at San Francisco Airport?

If you're flying with United Airlines from San Francisco, CA (SFO-San Francisco Intl.), you'll generally be boarding from terminal I. If you're heading to London (LHR-Heathrow) from here, you'll likely be pulling in at terminal 2.

Are there United Airlines non-stop flights from SFO to LHR?

If you need to get from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) and want to fly nonstop, United Airlines can help. Choose your favorite seat now and you'll be living it up at your destination in no time at all.

How long is an United Airlines flight from SFO to LHR?

Life is one big journey — and so is your trip from San Francisco, CA (SFO-San Francisco Intl.) to London (LHR-Heathrow) with United Airlines. With an average flying time of 11 hours and 55 minutes, be sure to bring the basics like an eye mask, a warm sweater and toiletries.

What type of aircraft does United Airlines fly from SFO to LHR?

You'll get to enjoy everything the Boeing 777 has to offer when flying between San Francisco, CA (SFO-San Francisco Intl.) and London (LHR-Heathrow) with United Airlines. This is the most typically used aircraft on this route.

How many direct and indirect flights does United Airlines fly from SFO to LHR?

There are around 9 United Airlines flights weekly that service the route from SFO 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 (LHR-Heathrow), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week 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 2019, flights departing on a Tuesday 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 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.


*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.