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473 € Cheap Flights from London (LOND) to San Diego (SANA)

Compare London to San Diego flight deals

Find the cheapest month or even day of the year to fly to San Diego

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Flight deals from London to San Diego

Looking for a cheap last-minute deal or the best return flight from London to San Diego? Find the lowest prices on one-way and return tickets right here.
San Diego.473 € per passenger.Departing Sat, 17 Jan, returning Mon, 26 Jan.Return flight with Norse Atlantic Airways (UK) and Frontier Airlines.Outbound indirect flight with Norse Atlantic Airways (UK), departs from London Gatwick on Sat, 17 Jan, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Mon, 26 Jan, arriving in London Gatwick.Price includes taxes and charges.From 473 €, select.
San Diego.496 € per passenger.Departing Mon, 2 Feb, returning Mon, 9 Feb.Return flight with Ryanair and WestJet.Outbound indirect flight with Ryanair, departs from London Stansted on Mon, 2 Feb, arriving in San Diego International.Inbound indirect flight with WestJet, departs from San Diego International on Mon, 9 Feb, arriving in London Heathrow.Price includes taxes and charges.From 496 €, select.
San Diego.497 € per passenger.Departing Mon, 2 Feb, returning Wed, 18 Mar.Return flight with Ryanair and WestJet.Outbound indirect flight with Ryanair, departs from London Stansted on Mon, 2 Feb, arriving in San Diego International.Inbound indirect flight with WestJet, departs from San Diego International on Wed, 18 Mar, arriving in London Heathrow.Price includes taxes and charges.From 497 €, select.
San Diego.511 € per passenger.Departing Tue, 27 Jan, returning Mon, 9 Feb.Return flight with Vueling Airlines and WestJet.Outbound indirect flight with Vueling Airlines, departs from London Gatwick on Tue, 27 Jan, arriving in San Diego International.Inbound indirect flight with WestJet, departs from San Diego International on Mon, 9 Feb, arriving in London Heathrow.Price includes taxes and charges.From 511 €, select.
San Diego.526 € per passenger.Departing Tue, 3 Mar, returning Tue, 17 Mar.Return flight with Vueling Airlines and Hawaiian Airlines.Outbound indirect flight with Vueling Airlines, departs from London Gatwick on Tue, 3 Mar, arriving in San Diego International.Inbound indirect flight with Hawaiian Airlines, departs from San Diego International on Tue, 17 Mar, arriving in London Gatwick.Price includes taxes and charges.From 526 €, select.
San Diego.564 € per passenger.Departing Wed, 10 Dec, returning Tue, 20 Jan.Return flight with easyJet and Alaska Airlines.Outbound indirect flight with easyJet, departs from London Southend on Wed, 10 Dec, arriving in San Diego International.Inbound indirect flight with Alaska Airlines, departs from San Diego International on Tue, 20 Jan, arriving in London Heathrow.Price includes taxes and charges.From 564 €, select.
San Diego.595 € per passenger.Departing Wed, 16 Sep, returning Mon, 21 Sep.Return flight with SWISS and Air Canada.Outbound indirect flight with SWISS, departs from London Heathrow on Wed, 16 Sep, arriving in San Diego International.Inbound indirect flight with Air Canada, departs from San Diego International on Mon, 21 Sep, arriving in London Heathrow.Price includes taxes and charges.From 595 €, select.
San Diego.596 € per passenger.Departing Wed, 6 May, returning Mon, 18 May.Return flight with SWISS and Air Canada.Outbound indirect flight with SWISS, departs from London Heathrow on Wed, 6 May, arriving in San Diego International.Inbound indirect flight with Air Canada, departs from San Diego International on Mon, 18 May, arriving in London Heathrow.Price includes taxes and charges.From 596 €, select.

Find the cheapest month to fly from London to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to San Diego flights are currently cheapest in January.
Nov
from 800 €
Dec
from 607 €
Jan
from 473 €
Feb
from 496 €
Mar
from 526 €
Apr
from 599 €
May
from 596 €
Jun
from 690 €
Jul
from 719 €
Aug
from 885 €
Sep
from 595 €
Oct
from 628 €

Direct flights from London to San Diego

Alternative London to San Diego routes

Looking for the cheapest, fastest or easiest route from London to San Diego? You could fly into the following airports instead.

London to San Diego: Flight information

The things to know before you go.
Cheapest flight found473 €
Cheapest month to flyJanuary
Average flight time11 hrs, 20 mins
Most popular airlineAlaska Airlines
Average flights per week57

Finding cheap flights from London to San Diego: Frequently asked questions

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from London to San Diego is 473 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
11 hours and 20 minutes is the average flight time from London to San Diego.
Alaska Airlines, American Airlines and British Airways fly direct from London to San Diego.
As of November 2025, there are 57 flights per week flying from London to San Diego.
The cheapest month to fly from London to San Diego is usually January.
If you're flying from London, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from 473 €.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to San Diego on Saturday, 17 January 2026.
Yes – the average flight time is 11 hours and 20 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
In November, the average temperature is usually around 16°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
The cheapest airline that flies to San Diego is Norse Atlantic Airways (UK). And the cheapest airline that flies to McClellan-Palomar Airport is British Airways.

Flying from London to San Diego: what you need to know

  • London has plenty of airports to fly out of. Explore your departure options from London Heathrow Airport (LHR) and London Gatwick Airport (LGW) when organising your flight from London to San Diego. Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY) are the city's other main bases.

  • Come in for landing at San Diego's primary gateway, San Diego International Airport (SAN).

  • The average duration of a direct London to San Diego flight is 11 hours 15 minutes.

  • San Diego's timezone is UTC-7, making San Diego seven hours behind London.

  • The busiest route for flights from London to San Diego is from London Heathrow Airport (LHR) to San Diego International Airport (SAN). There are ten services every week between these two airports. If you'd like to get going as soon as possible, the earliest flight from LHR to SAN is the 11:30 British Airways service. If you prefer to leave later in the day, the final scheduled service is at 14:55 with British Airways.

  • Leave plenty of time to get on your London to San Diego flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • You can expect bigger queues during popular months such as July. Arriving up to four hours in advance for an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

How to find the cheapest flights from London to San Diego

  • Book two months before flying. Pricing trends suggest that this is the ideal window for finding cheap London to San Diego flights.

  • Schedule your trip for May. That's the best month for scoring the biggest deals on plane tickets from London to San Diego. If you're flexible with your dates, use the 'Whole month' tool to find the cheapest price across each month.

  • Never miss a deal on cheap flights from London to San Diego by setting up a Price Alert. You'll receive an email or push notification on the app when a special offer becomes available.

  • Choose your ideal departure and arrival times, number of stops and airlines by using the filters. Alternatively, sort your London to San Diego flight results by 'Best,' 'Cheapest' or 'Fastest.'

Flying from London

London Heathrow Airport (LHR)

  • If you're searching for a direct flight from London to San Diego, you can depart from London Heathrow Airport (LHR). Fly from LHR to San Diego International Airport (SAN) in one continuous trip.

  • Keep an eye out for deals with British Airways. This carrier offers direct London to San Diego plane tickets out of LHR.

  • Stopovers are the ideal opportunity to break up your trip — and maybe even explore another city. When browsing London to San Diego flights departing from London Heathrow Airport, deselect the 'Direct flights only' box to see where you can visit along the way. Consider one of these popular options:

    • Denver International Airport (DEN)

    • Phoenix Sky Harbour International Airport (PHX)

    • Harry Reid Airport (formerly McCarran Airport) (LAS)

  • LHR is about 26 kilometres from central London. If you're catching a cab, ride-sharing or driving from the centre, it'll take 55 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the journey time to be around 1 hour.

  • Planning to catch an early flight from London to San Diego? Avoid the last-minute rush to the terminal (and get some extra shut-eye) by choosing one of these hotels close to London Heathrow Airport:

  • When it comes to the on-time performance of London Heathrow Airport, data shows 68.18% of flights meet their scheduled arrival time.

London Gatwick Airport (LGW)

  • Make the most of your holiday with a stopover on your London to San Diego flight. Visit family or friends or cross another city off your list. Whatever you want to do, here's where you can stop between London Gatwick Airport and San Diego:

    • John F. Kennedy International Airport (JFK)

    • Charles de Gaulle Airport (CDG)

    • Harry Reid Airport (formerly McCarran Airport) (LAS)

  • You can get to LGW from the centre of London in about 1 hour 20 minutes by car, depending on traffic conditions. The ride by public transport will take roughly 30 minutes to travel the 40 kilometres or so.

  • Get your holiday started early with an additional night away from home. Before your flight from London to San Diego, take it easy in one of these hotels close to London Gatwick Airport:

  • London Gatwick Airport has an on-time performance of 69%. This figure highlights how frequently flights that take off from this airport make it to their destination on schedule.

Stansted Airport (STN)

  • STN is roughly 48 kilometres from central London. The drive from the city centre to the airport takes about 1 hour. If you're planning to take public transport, you can expect a journey of around 1 hour 25 minutes.

  • Make catching an early London to San Diego flight one of the easiest parts of your trip. Stay at one of these accommodation options close to Stansted Airport and head to your check-in counter feeling relaxed and unhurried:

  • Flights departing from STN land at their destination on schedule 64.73% of the time.

Arriving in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) is approximately 5 kilometres from the centre of San Diego. If you're catching a cab or a ride-share, the drive takes roughly 10 minutes.

  • When travelling by public transport, expect a journey time of around 20 minutes.

  • Reserve a hotel close to SAN if you have a late flight from London to San Diego. Choose one of these options and avoid the hassle of a long transfer:

  • Travel at your own pace with a San Diego International Airport rental car. Pick up a set of wheels from Thrifty, Dollar or Budget and venture far and wide through San Diego and beyond.

  • Secure the lowest price by booking your ride from San Diego International Airport around two weeks before your travel date.

  • You'll find SAN at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • McClellan-Palomar Airport (CLD) is about 48 kilometres from the centre of San Diego. After your flight from London to San Diego, it takes approximately 40 minutes to reach the heart of the city in a cab or ride-share.

  • If you travel by public transport, the ride to the centre takes 2 hours 15 minutes or so.

  • No time to waste? The fastest way to get to where you're going is with a McClellan-Palomar Airport rental car. Collect your wheels from Budget, Hertz or Avis and make a speedy getaway.

  • Avoid filling out forms at the rental desk by having everything prearranged. Secure your ride from CLD ahead of time so you can simply grab the keys and go.

Best time to go to San Diego

  • It's time to plan your travel dates for your flight from London to San Diego. July is the most popular month to travel to San Diego. If you prefer a more peaceful vibe, go in May.

  • When booking your London to San Diego tickets, consider the type of weather you enjoy. August is the warmest month in San Diego, with temperatures ranging from 17ºC (63ºF) to 28ºC (82ºF).

  • Look for cheap flights from London to San Diego in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 7ºC (45ºF) and 23ºC (73ºF) on average.

More about San Diego

Explore more of United States

  • San Diego has loads to offer, but there are so many other corners of United States waiting to be discovered. Around 177 kilometres north-west of San Diego, a trip to Los Angeles will keep your itinerary packed. Start with leading attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • If there's time to check out another major destination in United States, consider Phoenix, about 483 kilometres east of San Diego. Desert Botanical Garden, Heard Museum and Papago Park are key highlights.

More travel options

Plan the rest of your trip from London to San Diego

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.