United's Polaris offers lie-flat seats and Saks Fifth Avenue bedding for premium comfort.
United's Premium Plus offers extra legroom, upgraded meals, and two checked bags on international routes.
Most accurate provider | AranGrant 3 stars |
---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $616 (Scandinavian Airlines) |
One-way from | $289 (JetBlue) |
Popular in | June |
Cheapest in | October |
Average price | $982 |
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Thu 2/13
5:30 pm-9:20 pm
2 stops19h 50m
London Heathrow
Mon 2/17
6:40 am-3:40 pm
1 stop17h 00m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Mon 1/13
4:40 pm-5:30 pm
1 stop16h 50m
London Heathrow
Fri 1/17
7:55 pm-2:55 pm
1 stop27h 00m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Wed 2/5
8:00 am-9:30 am
1 stop17h 30m
London Heathrow
Wed 2/12
8:25 am-9:43 pm
1 stop21h 18m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Mon 1/20
8:40 pm-3:15 pm
Nonstop10h 35m
London Heathrow
Fri 1/31
11:45 am-3:00 pm
Nonstop11h 15m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Wed 2/5
1:00 pm-10:10 am
1 stop13h 10m
London Heathrow
Wed 2/12
8:55 am-4:25 pm
1 stop15h 30m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Sun 2/2
8:40 pm-3:15 pm
Nonstop10h 35m
London Heathrow
Wed 2/12
9:50 am-3:30 pm
1 stop13h 40m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Tue 4/22
4:35 pm-11:00 am
Nonstop10h 25m
London Heathrow
Tue 9/30
10:45 am-1:50 pm
Nonstop11h 05m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Wed 2/12
1:00 pm-10:10 am
1 stop13h 10m
London Heathrow
Thu 2/20
8:55 am-4:25 pm
1 stop15h 30m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Wed 1/8
5:30 pm-12:00 pm
Nonstop10h 30m
London Heathrow
Tue 1/14
11:45 am-3:00 pm
Nonstop11h 15m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Wed 1/8
7:25 pm-5:50 pm
1 stop14h 25m
London Heathrow
Mon 1/13
6:40 pm-4:25 pm
1 stop29h 45m
Provider | Price Accuracy | Trust Score* |
---|---|---|
Expedia | Price Accuracy1 star | Trust Score*3 stars |
AranGrant | Price Accuracy3 stars | Trust Score*3 stars |
eDreams | Price Accuracy3 stars | Trust Score*3 stars |
FlightHub | Price Accuracy3 stars | Trust Score*3 stars |
Ovago | Price Accuracy2 stars | Trust Score*3 stars |
Cheapflightsfares | Price Accuracy3 stars | Trust Score*1 star |
Jetabroad | Price Accuracy3 stars | Trust Score*3 stars |
ScholarTrip | Price Accuracy3 stars | Trust Score*3 stars |
KAYAK | Price Accuracy- | Trust Score*1 star |
Kiwi.com | Price Accuracy3 stars | Trust Score*3 stars |
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Booking 29 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, November is the cheapest month in which you can book a flight from San Francisco to London Heathrow Airport (average of $661). Flying from San Francisco to London Heathrow Airport in June is currently the most expensive (average of $1,135). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from San Francisco to London Heathrow Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 9% on airfare.
Travelers seeking maximum savings on their San Francisco to London Heathrow Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from SFO to LHR are scheduled on a Monday (32 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (32 on average).
In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 1.6 in.
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).
Crew
Entertainment
Overall
Boarding
Comfort
Food
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Crew
Entertainment
Overall
Boarding
Comfort
Food
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Crew
Entertainment
Overall
Boarding
Comfort
Food
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Crew
Entertainment
Overall
Boarding
Comfort
Food
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Crew
Entertainment
Overall
Boarding
Comfort
Food
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Scandinavian Airlines | Cheapest$448 | Average$583 | FlexibilityNo cancel fee | On-time77% |
TAP AIR PORTUGAL | Cheapest$487 | Average$609 | FlexibilityNo cancel fee | On-timeN/A |
Finnair | Cheapest$519 | Average$661 | FlexibilityNo cancel fee | On-time76% |
SWISS | Cheapest$555 | Average$719 | FlexibilityNo cancel fee | On-time79% |
Aer Lingus | Cheapest$558 | Average$907 | FlexibilityNo cancel fee | On-timeN/A |
Iberia | Cheapest$571 | Average$700 | FlexibilityNo cancel fee | On-time77% |
KLM | Cheapest$586 | Average$912 | FlexibilityNo cancel fee | On-time75% |
British Airways | Cheapest$588 | Average$821 | FlexibilityNo cancel fee | On-time70% |
American Airlines | Cheapest$589 | Average$881 | FlexibilityNo cancel fee | On-time71% |
Delta | Cheapest$590 | Average$808 | FlexibilityNo cancel fee | On-timeN/A |