
Most accurate provider | oojo 3 stars |
|---|---|
Most trusted provider | oojo 3 stars |
Round-trip from | $513 (Air Canada) |
One-way from | $482 (SWISS) |
Popular in | December |
Cheapest in | February |
Average price | $657 |
Good round-trip deal | $669 or less |
Good one-way deal | $571 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Wed 3/11
10:05 am-2:20 pm
Nonstop11h 15m
San Francisco
Sun 3/29
12:55 pm-7:25 am
Nonstop10h 30m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sun 3/15
10:05 am-2:20 pm
Nonstop11h 15m
San Francisco
Sun 3/29
12:55 pm-7:25 am
Nonstop10h 30m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Tue 3/10
10:05 am-2:20 pm
Nonstop11h 15m
San Francisco
Sun 3/29
12:55 pm-7:25 am
Nonstop10h 30m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sun 2/8
9:00 am-4:30 pm
1 stop15h 30m
San Francisco
Sun 2/15
7:25 pm-9:25 pm
2 stops18h 00m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sun 2/8
10:05 am-1:20 pm
Nonstop11h 15m
San Francisco
Sat 2/21
12:50 pm-7:25 am
Nonstop10h 35m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 3/14
10:05 am-2:20 pm
Nonstop11h 15m
San Francisco
Mon 3/16
1:50 pm-7:25 am
Nonstop10h 35m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 2/7
1:45 pm-5:00 pm
Nonstop11h 15m
San Francisco
Sun 2/22
12:50 pm-7:25 am
Nonstop10h 35m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Mon 2/9
10:05 am-1:20 pm
Nonstop11h 15m
San Francisco
Tue 2/17
12:50 pm-7:25 am
Nonstop10h 35m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 3/14
1:45 pm-6:00 pm
Nonstop11h 15m
San Francisco
Tue 3/17
6:25 pm-12:00 pm
Nonstop10h 35m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sat 5/16
6:55 am-2:30 pm
1 stop15h 35m
San Francisco
Sat 5/30
10:55 pm-6:55 am
1 stop24h 00m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
The price you pay for your flight from London Heathrow Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco (average of $476). Flying from London Heathrow Airport to San Francisco in July is currently the most expensive (average of $595). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to San Francisco as you normally would.
About 11% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 149 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Virgin Atlantic have had the lowest number of delays on this route, with just 10% of flights being delayed.
Lisbon (LIS) – chosen by Cheapflights users on 60% of 1-stop itineraries from London Heathrow Airport to San Francisco on Cheapflights.
Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $520.
Flights via Copenhagen (CPH) have the shortest average one-way travel time for 1-stop routes: 16h 30m.
Flights via Lisbon (LIS) offer the fastest connection on this route, with an average layover time of 1h 54m.
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Comfort
Crew
Food
Overall
Entertainment
Reviews
Pratap,Aug 2025
JFK - LHR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$449 | Average$494 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$492 | Average$760 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$513 | Average$668 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$520 | Average$751 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$530 | Average$703 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$532 | Average$666 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$534 | Average$680 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$550 | Average$719 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$557 | Average$715 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$567 | Average$731 | FlexibilityNo cancel fee | On-time78% |