Cheap flights from San Diego to London from £171
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 16/7. 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 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 £505, 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 £512.
What is the cheapest day to depart on your flight to London?
Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £480. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to London for around £846.
What is the cheapest time of day to depart on your flight to London?
The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £553. Flights in the afternoon are often more expensive, with an average ticket price of £702.
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 £664 when searching weeks before you fly. 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 £568 on momondo.
What cabin class options are available on San Diego to London flights?
There are 3 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.
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 19:00, 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, 53 flights take off from San Diego and land in London each week. The most common flight departure day for this route is Fri, with 19% of weekly 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?
San Diego and London are 5478.3 mi apart from one another. 10h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from San Diego Airport to London?
Prices for flights from San Diego Airport to London are refreshed on a daily basis.
How many operators does momondo search for flights from San Diego Airport to London?
The number of operators available for flights from San Diego Airport to London is 1 as of June 2025.
How old do you have to be to fly from San Diego Airport to London?
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.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London 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. 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?
momondo data reveals that the most frequently booked plane model on the route from San Diego to London is Boeing 787-8 Dreamliner, representing 58.88% of all bookings. The subsequent popular models are Boeing 777-300 at 23.68%, Boeing 777 at 6.54%, and Airbus A350-1000 at 4.63%.
What is the most popular airline from San Diego to London?
momondo data reveals that the most frequently booked airline on the route from San Diego to London is British Airways, representing 78% of all bookings. The subsequent popular airline is Iberia at 22%.
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 £498 | Free Cancellation | Rating 6.6 7,081 reviews |
British Airways Flights From San Diego to London
Across 14 British Airways flights from San Diego to London this week, the average price was £976, with the best British Airways deals starting from £683 round-trip. 7,081 users have rated British Airways on momondo, with an average score of 6.6/10.
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?
All flight searches from San Diego to London on momondo can be filtered to show those which offer flexible booking policies.
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 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.