Cheap flights from San Diego to London from $267
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 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Fri 11/13
9:40 pm-9:40 pm
1 stop16h 00m
London Heathrow
Sat 11/21
8:05 am-7:44 pm
1 stop19h 39m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Fri 11/13
9:40 pm-9:40 pm
1 stop16h 00m
London Heathrow
Sun 11/22
9:20 am-7:36 pm
1 stop18h 16m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 2/2
6:00 pm-12:40 pm
Nonstop10h 40m
London Heathrow
Tue 2/9
7:30 am-9:00 pm
2 stops21h 30m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 2/1
6:00 pm-12:40 pm
Nonstop10h 40m
London Heathrow
Tue 2/9
7:30 am-9:00 pm
2 stops21h 30m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 2/2
6:00 pm-12:40 pm
Nonstop10h 40m
London Heathrow
Tue 2/9
12:45 pm-4:10 pm
Nonstop11h 25m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 3/15
7:00 pm-12:40 pm
Nonstop10h 40m
London Heathrow
Tue 3/30
11:35 am-2:55 pm
Nonstop11h 20m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sun 1/31
1:06 pm-11:15 am
1 stop14h 09m
London Heathrow
Wed 2/17
6:35 am-3:45 pm
1 stop17h 10m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Wed 2/10
2:32 pm-1:30 pm
1 stop14h 58m
London Heathrow
Wed 2/17
6:35 am-3:45 pm
1 stop17h 10m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sat 1/30
10:40 pm-6:25 am
1 stop23h 45m
London Heathrow
Wed 2/10
11:45 am-12:10 pm
1 stop32h 25m
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sun 1/31
7:30 pm-4:30 pm
1 stop13h 00m
London Heathrow
Mon 2/8
10:00 am-12:10 pm
1 stop34h 10m
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 $749 to $1,116.The lowest price recently found on this route was $872.
What is the cheapest month to fly to London Heathrow Airport?
The month of February is, on average, the cheapest month to fly to London Heathrow Airport from San Diego, with most prices found around $797. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from San Diego to London Heathrow Airport during January average around $840.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $933. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,059.
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 afternoon. momondo users have found flights departing from San Diego to London Heathrow Airport in the afternoon for as low as $981. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,026.
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 $1,059 when searching weeks out. 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 $924 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 6% 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.
What is the cheapest airline that flies from San Diego to London Heathrow?
JetBlue is the most popular carrier operating from San Diego to London Heathrow
What airlines fly to London Heathrow Airport?
British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to London Heathrow Airport from San Diego according to our data. British Airways is the first choice among our users, with 57% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 9 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between San Diego and London Heathrow Airport?
New York (JFK) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from San Diego to London Heathrow Airport?
Flights via New York (JFK) offer the lowest average round-trip price of $750.
Which layover airport has the shortest travel time from San Diego to London Heathrow Airport?
Flights connecting via Munich (MUC) have the shortest average one-way travel time: 14h 25m.
Which layover airport has the shortest connection time from San Diego to London Heathrow Airport?
Munich (MUC) has the shortest average layover time for this route: 1h 45m.
How many flights depart from San Diego to London Heathrow Airport on average per day?
The number of flights available between San Diego and London Heathrow Airport is 11 per day as of October 2026. The most frequent departure time is 7:00PM, with 54% of daily flights leaving 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?
London Heathrow is 5468.7 mi away from San Diego. Typically, this will take 10h 40m by plane in normal conditions.
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 refresh daily.
How many operators does momondo search for flights from San Diego Airport to London Heathrow Airport?
As of October 2026, there are 9 operators available to choose from for flights from San Diego Airport to London Heathrow Airport.
How old do you have to be to fly from San Diego Airport to London Heathrow Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from San Diego to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Diego to London Heathrow Airport is Boeing 777-300ER (38.07% of total bookings). The next most popular plane models are Boeing 777 (37.53%), Boeing 777-300 (10.03%), and Boeing 787-8 Dreamliner (6.38%).
What is the most popular airline from San Diego to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Diego to London Heathrow Airport is British Airways (62% of total bookings). The next most popular airlines are American Airlines (17%), United Airlines (5%), and Delta (4%).
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 $296 | Free Cancellation | Rating 7.5 694 reviews | |||
| PriceFrom $494 | Free Cancellation | Rating 7.8 8,653 reviews | |||
| PriceFrom $608 | Free Cancellation | Rating 7.0 3,247 reviews | |||
| PriceFrom $621 | Free Cancellation | Rating 6.8 8,274 reviews | |||
| PriceFrom $642 | Free Cancellation | Rating 7.0 12,159 reviews | |||
| PriceFrom $656 | Free Cancellation | Rating 6.7 8,260 reviews | |||
| PriceFrom $685 | Free Cancellation | Rating 7.4 10,352 reviews | |||
| PriceFrom $755 | Free Cancellation | Rating 7.9 13,056 reviews | |||
| PriceFrom $881 | Free Cancellation | Rating 7.1 3,048 reviews |
Alaska Airlines Flights From San Diego to London Heathrow Airport
Alaska Airlines is one of the most popular airlines flying from San Diego to London Heathrow Airport, operating 14 flights/week on average for this route. A good Alaska Airlines flight deal for San Diego to London Heathrow Airport starts from $755 round-trip, up to an average price of $894. Our users have rated Alaska Airlines at 7.9/10.
Iberia Flights From San Diego to London Heathrow Airport
$608 is the best Iberia flight deal from San Diego to London Heathrow Airport found on momondo over the last 72 hours. The average Iberia ticket price found was closer to $897, however, with flight time and availability significantly affecting the price. Iberia (7.0/10 from 3,247 user reviews) flies into London Heathrow Airport from San Diego 14 times in an average week so prices can vary.
Traveling 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?
It is quick and easy to find San Diego to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.
Can I find flights from San Diego to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from San Diego with this policy.
How can momondo help me find flights from San Diego to London?
momondo helps you find the best flight between San Diego and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
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 not ready to book a flight from San Diego to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.