
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $702 (Ticket) |
One-way from | $423 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $810 |
Good round-trip deal | $1,030 or less |
Good one-way deal | $610 or less |
Fly from
Fly to
Route
Depart
Return
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Mon 4/20
7:30 am-6:38 pm
2 stops19h 08m
San Diego
Mon 4/27
4:21 pm-2:10 pm
1 stop13h 49m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Sat 5/2
7:25 am-3:25 pm
1 stop16h 00m
San Diego
Thu 5/7
10:55 am-10:10 am
1 stop15h 15m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Thu 4/23
7:25 am-3:25 pm
1 stop16h 00m
San Diego
Thu 4/30
11:00 am-9:40 am
1 stop14h 40m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Mon 9/7
8:40 am-6:54 pm
2 stops18h 14m
San Diego
Thu 9/17
3:59 pm-5:35 pm
1 stop17h 36m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Mon 4/20
6:30 am-3:55 pm
2 stops17h 25m
San Diego
Mon 5/4
6:25 am-7:10 am
2 stops16h 45m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 9/4
7:05 am-8:48 pm
2 stops21h 43m
San Diego
Fri 9/25
7:00 am-6:30 pm
3 stops27h 30m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Sat 5/2
6:55 am-3:25 pm
1 stop16h 30m
San Diego
Sat 5/16
6:20 am-7:25 am
2 stops17h 05m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Mon 4/20
11:35 am-2:55 pm
Nonstop11h 20m
San Diego
Mon 5/4
7:40 pm-2:20 pm
Nonstop10h 40m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 8/28
7:05 am-10:48 pm
3 stops23h 43m
San Diego
Sat 9/5
10:00 am-6:30 pm
2 stops24h 30m
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 6/12
3:05 pm-8:50 pm
1 stop13h 45m
San Diego
Wed 7/8
4:09 pm-2:10 pm
1 stop14h 01m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of $444). Flying from London Heathrow Airport to San Diego in July is currently the most expensive (average of $556). 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 Diego as you normally would.
About 16% of weekly flights between London and San Diego have experienced delays in the past year, with the average delay time being 156 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, British Airways have had the lowest number of delays on this route, with just 16% of flights being delayed.
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Tim,Sep 2025
LHR - IAD
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Tim,Sep 2025
LHR - IAD
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Tim,Sep 2025
LHR - IAD
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Tim,Sep 2025
LHR - IAD
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Tim,Sep 2025
LHR - IAD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$599 | Average$942 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$637 | Average$748 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$640 | Average$847 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$664 | Average$850 | FlexibilityNo cancel fee | On-time71% |