Q: How much does it cost for a return flight from London to San Diego?

Airfare is below average for this route at the moment. London to San Diego flights typically cost between £600 and £861 in September. The cheapest return flight price found within the last 3 days was £480 on Multiple Airlines (2 Sept-8 Sept).

Question 1

What’s the top stopover airport for flights from London to San Diego?

Accepted Answer

Denver (DEN) – chosen by Cheapflights users on 27% of one-stop itineraries from London to San Diego on Cheapflights.

Question 2

How much does it cost for a return flight from London to San Diego?

Accepted Answer

Airfare is below average for this route at the moment.London to San Diego flights typically cost between £600 and £861 in September.
The cheapest return flight price found within the last 3 days was £480 on Multiple Airlines (2 Sept-8 Sept).

Question 3

What’s the fastest stopover option from London to San Diego?

Accepted Answer

Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 30m.

Question 4

What’s the cheapest stopover airport for flights from London to San Diego?

Accepted Answer

Washington, D.C. (IAD) is the most affordable one-stop option, with an average return flight price of £398.

Question 5

Which airport typically offers the quickest stopover for flights from London to San Diego?

Accepted Answer

Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 01m.

Question 6

How long is the flight from London to San Diego?

Accepted Answer

Departing from London to San Diego will take you 17h 10m. London and San Diego are separated by a distance of 5469 mi. This flight may include one or multiple stops.

Question 7

What are the cheapest airlines flying from London to San Diego round-trip?

Accepted Answer

According to our current data, Air France (£368), Air Canada (£384), and Virgin Atlantic (£397) offers the cheapest pricing from London to San Diego. Air France is 35% cheaper than the average price of flights available within the next 90 days to this destination.

Question 8

How far ahead should I book a flight from London to San Diego?

Accepted Answer

The best time to book flights from London to San Diego is 42 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 9

What is the cheapest month to book a flight from London to San Diego?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from London to San Diego (average of £585). Flying from London to San Diego in July is currently the most expensive (average of £920). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 10

What is the cheapest day to fly from London to San Diego?

Accepted Answer

Travellers seeking maximum savings on their London to San Diego flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 11

Weekly flight availability from London to San Diego

Accepted Answer

The most flights from LON to SAN are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Question 12

E

Accepted Answer

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Question 13

E

Accepted Answer

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Question 14

What are the most popular routes from London to San Diego?

Accepted Answer

When deciding which route to take from London to San Diego consider London Heathrow - San Diego, London Gatwick - San Diego or London City - San Diego as they are the most popular.

Question 15

What are the cheapest flights from London to San Diego?

Accepted Answer

Looking at all options, your cheapest flight can be booked for £458. While the most popular route (London Heathrow - San Diego) can be booked for £443 on average our data indicates £1,980 when flying from London to San Diego.

Question 16

What are the most reliable airlines from London to San Diego?

Accepted Answer

Consider American Airlines (71%), Alaska Airlines (71%) or British Airways (71%) when booking your flight. These represent the most reliable airlines when flying from London to San Diego.

Question 17

What are the most popular airlines that fly from London to San Diego?

Accepted Answer

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from London to San Diego.

Question 18

What is the cheapest day to fly round-trip from London to San Diego?

Accepted Answer

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 9% when planning your travel around this day of the week.

Question 19

How far in advance should I book a flight from London to San Diego?

Accepted Answer

Find a great deal and save up to 27% by booking at least 43 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to San Diego within the next two weeks, with the cheapest ticket starting at £494.

Question 20

What is the cheapest month to fly from London to San Diego?

Accepted Answer

The best pricing can be found in the month of February. Prices to San Diego from London average £570. You can even find prices in February for less than £570, as users have found deals to San Diego from as low as £386. The month of July appears to be one of the more expensive times to travel to San Diego from London. Flying in the targeted month can save you up to 34%.

Question 21

What is the cheapest time of day to fly from LON to SAN?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from London to San Diego in the morning. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the afternoon.

Question 22

What airport do you fly into for flights to San Diego from London?

Accepted Answer

If you book a flight to San Diego from London, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 7 flights from London to San Diego per day from 11 different airlines.

Question 23

Can I find deals for flights from London to San Diego that include hotel bookings?

Accepted Answer

Yes. In addition to deals on London to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 24

How can I find direct flights from London to San Diego?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Diego.

Question 25

Can I find deals for business class flights from London to San Diego?

Accepted Answer

Yes. Cheapflights offers flight deals from London to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 26

How does Cheapflights help users find flights from London to San Diego?

Accepted Answer

Cheapflights makes it easy to find London to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 27

Why should you use Cheapflights to find cheap flight tickets from London to San Diego?

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from London.

Question 28

Can Cheapflights find flights from London to San Diego with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Diego flexibly with Cheapflights today.

Question 29

Can Cheapflights notify me if prices for flights from London to San Diego become cheaper?

Accepted Answer

Yes! Start tracking prices for London to San Diego flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Round-trip from	£480
One-way from	£455
Popular in	July
Cheapest in	February
Average price	£714
Good round-trip deal	£518 or less
Good one-way deal	£537 or less

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£368	Average£422	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Canada	Cheapest£384	Average£511	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	Cheapest£397	Average£516	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£398	Average£624	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£404	Average£490	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£411	Average£557	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Finnair	Cheapest£420	Average£560	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£421	Average£519	FlexibilityNo cancel fee	On-time75%	Search KLM flights
American Airlines	Cheapest£436	Average£647	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	Cheapest£482	Average£607	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Cheap flights from London to San Diego from £455

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to San Diego are usually found in February or March, booked 42 days in advance, depart on a Friday or Monday and return on a Monday

Cheap flight deals from London to San Diego

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Find flight deals from London to San Diego

Cheapest flights from London to San DiegoExplore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

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Use the filters below to find and compare flights from London to San Diego that are best for you.

Best time to book a flight from London to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to San Diego

How far ahead should I book a flight from London to San Diego?

Use this chart to determine the optimal time to book a return flight from London to San Diego. Price data was last updated on 8 August 2025.

What is the cheapest month to book a flight from London to San Diego?

What is the cheapest time of day to fly from LON to SAN?

Find hourly flight availability from London to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

Weekly flight availability from London to San Diego

Explore weekly flight availability from London to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 August 2025.

How much does it cost for a return flight from London to San Diego?

What’s the top stopover airport for flights from London to San Diego?

Share of one-stop return flights from London to San Diego chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from London to San Diego?

Average return fare for one-stop flights from London to San Diego, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from London to San Diego?

Shortest average travel time for one-stop one-way flights from London to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from London to San Diego?

Average stopover duration for one-stop one-way flights from London to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing San Diego

Read through reviews of airlines operating flights from London to San Diego, such as Finnair, Virgin Atlantic, andIberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Diego from London?

How long is the flight from London to San Diego?

What are the cheapest airlines flying from London to San Diego round-trip?

What are the most popular routes from London to San Diego?

What are the most reliable airlines from London to San Diego?

What are the cheapest flights from London to San Diego?

Can I find deals for flights from London to San Diego that include hotel bookings?

How can I find direct flights from London to San Diego?

Can I find deals for business class flights from London to San Diego?

What is the cheapest month to book a flight from London to San Diego?

Travelling to a place near San Diego?

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Fly from London to San Diego on these airlines

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Top 10 airlines flying from London to San Diego

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How does Cheapflights help users find flights from London to San Diego?

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Can Cheapflights find flights from London to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from London to San Diego become cheaper?

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Cheapest flights from London to San Diego
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.