Cheap flights from San Diego to London from $234
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 7/16. 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.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize 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.Find the cheapest flights from San Diego to London
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
JetBlue flights from San Diego to London
Our best JetBlue deals on San Diego to London flight tickets
Scandinavian Airlines flights from San Diego to London
Our best Scandinavian Airlines deals on San Diego to London flight tickets
See travel insights to London from
How to get the cheapest flight ticket from San Diego to London
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?
What is the cheapest month to fly to London?
The cheapest month to fly to London from San Diego is in February. Flight prices, which tend to average around $693, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from San Diego averaging around $703.
What is the cheapest day to depart on your flight to London?
The cheapest day to depart from San Diego to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $896. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,093. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.
What is the cheapest time of day to depart on your flight to London?
Flying to London from San Diego at noon is the least expensive time of day to depart. momondo users have found prices as low as $880 when looking at flights departing at noon. Flights to London are more costly in the afternoon, with an average ticket price of $983. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest San Diego to London flight route?
Fly from San Diego to London Heathrow for the best San Diego - London flight prices
How far in advance should I book a flight to London?
You are more likely to see cheaper flights to London from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $911 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Diego for as low as $780 on momondo.
What cabin class options are available on San Diego to London flights?
There are 4 cabin classes available to choose from on San Diego to London 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 flights?
No. A direct flight is the cheapest option for a flight between San Diego to London.
How have San Diego to London flight prices changed over time?
As of June 2025, prices for San Diego to London flights are approximately 9% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from San Diego to London?
WestJet is the most popular carrier operating from San Diego to London
What airlines fly to London?
British Airways, American Airlines and Iberia are the top three most popular airlines that fly to London from San Diego according to our data. British Airways is the first choice among our users, with 58% of people opting to fly with this airline when traveling to London. Keep in mind that there are 11 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Diego to London on average per day?
As of June 2025, there are 7 flights per day flying from San Diego to London. The most common time of day flights depart is 7:00PM, with 59% of flights taking off in the evening.
How many flights depart from San Diego to London on average per week?
As of June 2025, there are 53 flights per week flying from San Diego to London. The most common day of the week flights depart is Fri, with 19% of flights taking off on this day.
When to book flights from San Diego to London
Cheap San Diego to London (SAN to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Diego to London
How far is San Diego to London by plane?
London is 5478.3 mi away from San Diego. In terms of flight time, this usually takes a little over 10h 25m.
When did momondo last update prices for flights from San Diego Airport to London?
Prices for flights from San Diego Airport to London refresh daily.
How many operators does momondo search for flights from San Diego Airport to London?
As of June 2025, there are 11 operators available to choose from for flights from San Diego Airport to London.
How old do you have to be to fly from San Diego Airport to London?
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.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London 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. 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?
Based on momondo bookings for flights between San Diego and London, the leading plane model is Boeing 787-8 Dreamliner, making up 60.42% of the total bookings. Other popular models include Boeing 777-300 with 23.13%, Boeing 777 with 5.24%, and Airbus A350-1000 with 4.57%.
What is the most popular airline from San Diego to London?
Based on momondo bookings for flights between San Diego and London, the leading airline is British Airways, making up 54% of the total bookings. Other popular airlines include Iberia with 19%, American Airlines with 11%, and Delta with 3%.
Best airlines flying from San Diego to London
Compare and see reviews for airlines that fly from San Diego to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $578 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $580 | Free Cancellation | Rating 7.8 1,366 reviews | |||
| PriceFrom $589 | Free Cancellation | Rating 7.0 2,811 reviews | |||
| PriceFrom $590 | Free Cancellation | Rating 6.8 7,201 reviews | |||
| PriceFrom $595 | Free Cancellation | Rating 7.6 1,299 reviews | |||
| PriceFrom $597 | Free Cancellation | Rating 7.3 2,920 reviews | |||
| PriceFrom $620 | Free Cancellation | Rating 7.4 654 reviews | |||
| PriceFrom $633 | Free Cancellation | Rating 6.6 7,081 reviews | |||
| PriceFrom $653 | Free Cancellation | Rating 7.4 8,852 reviews | |||
| PriceFrom $677 | Free Cancellation | Rating 8.0 7,969 reviews |
Alaska Airlines Flights From San Diego to London
Across 13 Alaska Airlines flights from San Diego to London this week, the average price was $951, with the best Alaska Airlines deals starting from $828 round-trip. 10,000 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.
Finnair Flights From San Diego to London
The best Finnair deal for San Diego to London flight tickets found on momondo in the last 72 hours was $595, round-trip. It should be noted that an average Finnair flight deal for this route in this time was higher, at $692 round-trip. Finnair operates 7 flights out of San Diego into London in an average week, so prices vary by time and availability. 1,299 Finnair reviews by users on momondo have scored the airline at 7.6/10.
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?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Diego to London. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from San Diego to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for San Diego to London flights to just show those with flexible booking policies.
How can momondo help me find flights from San Diego to London?
Once all potential San Diego to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
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.