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 | $595 (Gotogate) |
One-way from | $252 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $703 |
Good round-trip deal | $690 or less |
Good one-way deal | $478 or less |
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Wed 2/5
5:30 pm-12:00 pm
Nonstop10h 30m
London Heathrow
Wed 2/12
11:45 am-3:00 pm
Nonstop11h 15m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Sun 2/9
4:40 pm-10:55 am
Nonstop10h 15m
London Heathrow
Tue 2/25
6:30 am-11:50 am
1 stop13h 20m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Mon 2/3
4:40 pm-12:40 pm
1 stop36h 00m
London Heathrow
Fri 2/7
1:40 pm-2:55 pm
1 stop33h 15m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Sun 2/2
5:30 pm-5:40 pm
1 stop16h 10m
London Heathrow
Sun 2/16
7:30 pm-3:40 pm
1 stop28h 10m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Wed 2/5
7:00 am-9:20 am
2 stops18h 20m
London Heathrow
Wed 2/12
6:00 am-4:25 pm
1 stop18h 25m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Tue 4/22
12:55 pm-7:25 am
Nonstop10h 30m
London Heathrow
Tue 4/29
1:45 pm-4:10 pm
1 stop34h 25m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Mon 2/24
4:40 pm-10:55 am
Nonstop10h 15m
London Heathrow
Tue 3/11
6:30 am-12:50 pm
1 stop13h 20m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Mon 2/10
8:40 pm-3:15 pm
Nonstop10h 35m
London Heathrow
Wed 2/26
3:20 pm-6:45 pm
Nonstop11h 25m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Sun 2/9
5:30 pm-12:00 pm
Nonstop10h 30m
London Heathrow
Tue 2/25
8:25 am-3:30 pm
1 stop15h 05m
San FranciscoLondon
SFO - LHR
SFOLHR
San Francisco
Mon 4/21
3:00 pm-12:15 pm
1 stop13h 15m
London Heathrow
Tue 4/29
6:30 am-11:45 am
1 stop13h 15m
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 |
Cheapflightsfares | Price Accuracy3 stars | Trust Score*1 star |
Jetabroad | Price Accuracy3 stars | Trust Score*3 stars |
ScholarTrip | Price Accuracy3 stars | Trust Score*3 stars |
Kiwi.com | Price Accuracy3 stars | Trust Score*3 stars |
business-class.com | Price Accuracy3 stars | Trust Score*3 stars |
CheapOair | Price Accuracy2 stars | Trust Score*2 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 26 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 $1,137). 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 at noon could potentially save you up to 19% 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. Saturday mornings 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 (31 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (26 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).
Comfort
Food
Overall
Entertainment
Crew
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Food
Overall
Entertainment
Crew
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Food
Overall
Entertainment
Crew
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Food
Overall
Entertainment
Crew
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Food
Overall
Entertainment
Crew
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Food
Overall
Entertainment
Crew
Boarding
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$458 | Average$586 | FlexibilityNo cancel fee | On-time77% |
TAP AIR PORTUGAL | Cheapest$488 | Average$598 | FlexibilityNo cancel fee | On-timeN/A |
Finnair | Cheapest$519 | Average$658 | FlexibilityNo cancel fee | On-time76% |
SWISS | Cheapest$541 | Average$719 | FlexibilityNo cancel fee | On-time79% |
Aer Lingus | Cheapest$557 | Average$924 | FlexibilityNo cancel fee | On-timeN/A |
Iberia | Cheapest$572 | Average$691 | FlexibilityNo cancel fee | On-time77% |
KLM | Cheapest$586 | Average$814 | FlexibilityNo cancel fee | On-time75% |
British Airways | Cheapest$588 | Average$814 | FlexibilityNo cancel fee | On-time70% |
American Airlines | Cheapest$590 | Average$875 | FlexibilityNo cancel fee | On-time71% |
Delta | Cheapest$591 | Average$814 | FlexibilityNo cancel fee | On-timeN/A |