Cheap flights from London to San Diego from £255
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to San Diego departing on 9/5. 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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How to get the cheapest flight ticket from London to San Diego
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 London and San Diego?
What is the cheapest month to fly to San Diego?
If you don’t want to visit San Diego in March, then you should wait until February to fly from London, when ticket prices are also cheap, with an average price of £495.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from London to San Diego is on a Friday when prices can be found for as low as £574. Flights from London to San Diego on a Sunday will generally be more expensive and average around £604. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to San Diego?
At midday is the cheapest time of day to fly from London to San Diego when you can find flight prices for as low as £559. Flying to San Diego at midday is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around £639. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest London to San Diego flight route?
Fly from London Heathrow to San Diego for the best London - San Diego flight prices
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from London when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around £582 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from London for as low as £515 on momondo.
What cabin class options are available on London to San Diego flights?
There are 3 cabin classes available to choose from on London to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from London to San Diego?
WestJet, Aer Lingus, and Lufthansa are the most popular carriers operating from London to San Diego
Which airlines fly to San Diego?
British Airways, Virgin Atlantic and Finnair are the top three most popular airlines that fly to San Diego from London according to our data. British Airways is the first choice among our users, with 67% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 11 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from London to San Diego on average per day?
The number of flights available between London and San Diego is 6 per day as of April 2025. The most frequent departure time is 14:00, with 56% of daily flights leaving in the afternoon.
How many flights depart from London to San Diego on average per week?
The number of flights available between London and San Diego is 47 per week as of April 2025. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.
When to book flights from London to San Diego
Cheap London to San Diego (LON to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to San Diego
Best price found | £255 |
|---|---|
Fastest flight time | 11h 05m |
Direct flights | Mon, Tue, Thu, Fri, Sat and Sun |
Airports in San Diego | 1 airport |
How far is London to San Diego by plane?
The straight-line distance from London to San Diego is 5478.3 mi. In terms of flight time, this usually takes a little over 11h 05m.
When did momondo last update prices for flights from London to San Diego Airport?
Prices for flights from London to San Diego Airport are updated daily.
How many operators does momondo search for flights from London to San Diego Airport?
As of April 2025, there are 11 operators available to choose from for flights from London to San Diego Airport.
How old do you have to be to fly from London to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego 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 San Diego 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 London to San Diego?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to San Diego is Boeing 787-8 Dreamliner (43.90% of total bookings). The next most popular plane models are Airbus A350-1000 (35.09%), Boeing 777-300ER (14.83%), and Boeing 777-300 (3.08%).
What is the most popular airline from London to San Diego?
Based on momondo bookings for flights between London and San Diego, the leading airline is British Airways, making up 62% of the total bookings. Other popular airlines include Iberia with 11%, Finnair with 8%, and Virgin Atlantic with 7%.
Best airlines flying from London to San Diego
Compare and see reviews for airlines that fly from London to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £379 | Free Cancellation | Rating 7.5 1,435 reviews | |||
| PriceFrom £394 | Free Cancellation | Rating 7.0 9,127 reviews | |||
| PriceFrom £404 | Free Cancellation | Rating 6.6 6,760 reviews | |||
| PriceFrom £408 | Free Cancellation | Rating 7.4 642 reviews | |||
| PriceFrom £417 | Free Cancellation | Rating 7.4 8,656 reviews | |||
| PriceFrom £420 | Free Cancellation | Rating 6.7 7,004 reviews | |||
| PriceFrom £427 | Free Cancellation | Rating 7.6 1,269 reviews | |||
| PriceFrom £433 | Free Cancellation | Rating 7.8 1,323 reviews | |||
| PriceFrom £448 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom £481 | Free Cancellation | Rating 7.0 2,673 reviews |
Finnair Flights From London to San Diego
Across 3 Finnair flights from London to San Diego this week, the average price was £770, with the best Finnair deals starting from £562 round-trip. 1,269 users have rated Finnair on momondo, with an average score of 7.6/10.
American Airlines Flights From London to San Diego
The best American Airlines deal for London to San Diego flight tickets found on momondo in the last 72 hours was £590, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at £659 round-trip. American Airlines operates 13 flights out of London into San Diego in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.
Travelling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to San Diego?
Finding the right flight to San Diego from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Diego quick and easy, saving you time and money.
Can I find flights from London to San Diego with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to San Diego from London with this policy.
How can momondo help me find flights from London to San Diego?
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 London to San Diego.
I’m not ready to book a flight from London to San Diego right now. Can momondo alert me if prices change?
Price alerts on flights to San Diego from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.