Cheap flights from San Diego to London from £213
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to London departing on 27/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Find the cheapest flights from San Diego to London
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.British Airways flights from San Diego to London Heathrow Airport
Our best British Airways deals on San Diego to London Heathrow Airport flight tickets
Delta flights from San Diego to London Heathrow Airport
Our best Delta deals on San Diego to London Heathrow Airport flight tickets
momondo Fare Finder
Use the filters below to find and compare flights from San Diego to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sat 31/10
19:00-12:40
Nonstop10h 40m
London Heathrow
Sun 8/11
12:45-16:10
Nonstop11h 25m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 19/1
16:45-09:20
2 stops32h 35m
London Heathrow
Mon 1/2
20:05-22:37
2 stops34h 32m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 2/2
16:45-09:20
2 stops32h 35m
London Heathrow
Tue 9/2
09:00-22:37
2 stops21h 37m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 15/3
10:00-09:00
2 stops16h 00m
London Heathrow
Tue 30/3
09:55-20:25
2 stops18h 30m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Wed 24/3
10:00-09:00
2 stops16h 00m
London Heathrow
Wed 31/3
09:55-20:25
2 stops18h 30m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Wed 24/3
19:00-12:40
Nonstop10h 40m
London Heathrow
Wed 31/3
14:30-17:50
Nonstop11h 20m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 5/1
06:15-07:15
2 stops17h 00m
London Heathrow
Wed 13/1
06:30-18:42
2 stops20h 12m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 5/1
06:15-07:15
2 stops17h 00m
London Heathrow
Tue 12/1
08:40-20:49
2 stops20h 09m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 27/10
11:40-09:30
1 stop14h 50m
London Heathrow
Sat 14/11
09:20-19:14
1 stop17h 54m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 15/3
09:29-07:50
1 stop15h 21m
London Heathrow
Tue 30/3
11:35-14:55
Nonstop11h 20m
See travel insights to London from
How to get the cheapest flight ticket from San Diego to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between San Diego and London Heathrow Airport?
Prices are currently typical for flights on this route.
Typical prices usually range from £567 to £827.The lowest price recently found on this route was £672.
What is the cheapest month to fly to London Heathrow Airport?
In general, February is the cheapest month to fly from San Diego to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £599. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from San Diego averaging around £629.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from San Diego is on a Monday. momondo users have found tickets for Monday departures for as low as £645. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £1,034.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from San Diego to London Heathrow Airport in the evening for as low as £732. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £732 on average. Flights to London Heathrow Airport from San Diego in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest San Diego to London Heathrow flight route?
Fly from San Diego to London Heathrow for the best San Diego - London Heathrow flight prices
How far in advance should I book a flight from San Diego to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £800 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Diego for as low as £699 on momondo.
What cabin class options are available on San Diego to London Heathrow Airport flights?
There are 4 cabin classes available to choose from on San Diego to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on San Diego to London Heathrow Airport flights?
You could potentially save up to 4% on your flight if you consider stops on a San Diego to London Heathrow Airport flight.
How have San Diego to London Heathrow Airport flight prices changed over time?
As of October 2026, prices for San Diego to London Heathrow Airport flights are approximately 7% cheaper when compared to flights at the same time last year.
How many flights depart from San Diego to London Heathrow Airport on average per day?
As of October 2026, there are 11 flights per day flying from San Diego to London Heathrow Airport. The most common time of day flights depart is 19:00, with 54% of flights taking off in the evening.
How many flights depart from San Diego to London Heathrow Airport on average per week?
As of October 2026, 77 flights take off from San Diego and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
When to book flights from San Diego to London Heathrow Airport
Cheap San Diego to London Heathrow Airport (SAN to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Diego to London Heathrow Airport
Frequently asked questions about flying from San Diego to London Heathrow Airport
How far is San Diego to London Heathrow by plane?
San Diego and London Heathrow are 5468.7 mi apart from one another. 10h 40m is a normal flight duration for this route.
When did momondo last update prices for flights from San Diego Airport to London Heathrow Airport?
Prices for flights from San Diego Airport to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Diego Airport to London Heathrow Airport?
The number of operators available for flights from San Diego Airport to London Heathrow Airport is 1 as of October 2026.
How old do you have to be to fly from San Diego Airport to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Diego to London Heathrow Airport?
Based on momondo bookings for flights between San Diego and London Heathrow Airport, the leading plane model is Boeing 777-300ER, making up 39.17% of the total bookings. Other popular models include Boeing 777 with 35.27%, Boeing 777-300 with 10.38%, and Boeing 787-8 Dreamliner with 7.37%.
What is the most popular airline from San Diego to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from San Diego to London Heathrow Airport is British Airways, representing 100% of all bookings.
Best airlines flying from San Diego to London Heathrow Airport
Compare and see reviews for airlines that fly from San Diego to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £516 | Free Cancellation | Rating 6.7 8,244 reviews |
British Airways Flights From San Diego to London Heathrow Airport
Across 14 British Airways flights from San Diego to London Heathrow Airport this week, the average price was £836, with the best British Airways deals starting from £516 round-trip. 8,244 users have rated British Airways on momondo, with an average score of 6.7/10.
Travelling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Diego to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to London. momondo saves you time and could save you money on your trip.
Can I find flights from San Diego to London with flexible booking policies on momondo?
Flights from San Diego to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from San Diego to London?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Diego to London.
I’m not ready to book a flight from San Diego to London right now. Can momondo alert me if prices change?
If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from San Diego and alert you when they change.