594 € Cheap Flights from San Diego to London

Return selected

origin

Enter the city you're flying from, or choose from the options below

Include nearby airports

selected

destination

. Enter your destination, or choose from the options below

Include nearby airports

selected

Travellers and cabin class, 1 Adult, Economy

Compare San Diego to London flight deals

Find the cheapest month or even day of the year to fly to London

Book the best London fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from San Diego to London

Looking for a cheap last-minute deal or the best return flight from San Diego to London? If you want to travel next month, return fares start from 630 €. Find the lowest prices on one-way and return tickets right here.

London.594 € per passenger.Departing Fri, 4 Dec, returning Fri, 11 Dec.Return flight with Alaska Airlines and easyJet.Outbound indirect flight with Alaska Airlines, departs from San Diego International on Fri, 4 Dec, arriving in London Luton.Inbound indirect flight with easyJet, departs from London Luton on Fri, 11 Dec, arriving in San Diego International.Price includes taxes and charges.From 594 €, select.

London.602 € per passenger.Departing Thu, 12 Nov, returning Wed, 18 Nov.Return flight with Alaska Airlines and easyJet.Outbound indirect flight with Alaska Airlines, departs from San Diego International on Thu, 12 Nov, arriving in London Luton.Inbound indirect flight with easyJet, departs from London Luton on Wed, 18 Nov, arriving in San Diego International.Price includes taxes and charges.From 602 €, select.

London.616 € per passenger.Departing Sun, 27 Sep, returning Tue, 13 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from San Diego International on Sun, 27 Sep, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 13 Oct, arriving in San Diego International.Price includes taxes and charges.From 616 €, select.

London.622 € per passenger.Departing Tue, 12 Jan, returning Tue, 19 Jan.Return flight with Iberia.Outbound indirect flight with Iberia, departs from San Diego International on Tue, 12 Jan, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 19 Jan, arriving in San Diego International.Price includes taxes and charges.From 622 €, select.

London.622 € per passenger.Departing Tue, 19 Jan, returning Tue, 9 Feb.Return flight with Iberia.Outbound indirect flight with Iberia, departs from San Diego International on Tue, 19 Jan, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Tue, 9 Feb, arriving in San Diego International.Price includes taxes and charges.From 622 €, select.

London.623 € per passenger.Departing Wed, 10 Feb, returning Thu, 18 Feb.Return flight with Iberia.Outbound indirect flight with Iberia, departs from San Diego International on Wed, 10 Feb, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Thu, 18 Feb, arriving in San Diego International.Price includes taxes and charges.From 623 €, select.

London.624 € per passenger.Departing Mon, 19 Oct, returning Tue, 3 Nov.Return flight with Frontier Airlines and easyJet.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Mon, 19 Oct, arriving in London Gatwick.Inbound indirect flight with easyJet, departs from London Gatwick on Tue, 3 Nov, arriving in San Diego International.Price includes taxes and charges.From 624 €, select.

London.627 € per passenger.Departing Fri, 27 Nov, returning Sun, 6 Dec.Return flight with Air Canada and easyJet.Outbound indirect flight with Air Canada, departs from San Diego International on Fri, 27 Nov, arriving in London Heathrow.Inbound indirect flight with easyJet, departs from London Gatwick on Sun, 6 Dec, arriving in San Diego International.Price includes taxes and charges.From 627 €, select.

London.628 € per passenger.Departing Sun, 13 Dec, returning Wed, 27 Jan.Return flight with WestJet and Ryanair.Outbound indirect flight with WestJet, departs from San Diego International on Sun, 13 Dec, arriving in London Heathrow.Inbound indirect flight with Ryanair, departs from London Stansted on Wed, 27 Jan, arriving in San Diego International.Price includes taxes and charges.From 628 €, select.

London.630 € per passenger.Departing Mon, 5 Oct, returning Wed, 14 Oct.Return flight with Frontier Airlines and Ryanair.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Mon, 5 Oct, arriving in London Gatwick.Inbound indirect flight with Ryanair, departs from London Stansted on Wed, 14 Oct, arriving in San Diego International.Price includes taxes and charges.From 630 €, select.

London.634 € per passenger.Departing Sun, 20 Sep, returning Tue, 29 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Sun, 20 Sep, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Tue, 29 Sep, arriving in San Diego International.Price includes taxes and charges.From 634 €, select.

London.634 € per passenger.Departing Wed, 30 Sep, returning Mon, 2 Nov.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from San Diego International on Wed, 30 Sep, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Heathrow on Mon, 2 Nov, arriving in San Diego International.Price includes taxes and charges.From 634 €, select.

London.636 € per passenger.Departing Wed, 21 Oct, returning Wed, 4 Nov.Return flight with Finnair.Outbound direct flight with Finnair departs from San Diego International on Wed, 21 Oct, arriving in London Heathrow.Inbound direct flight with Finnair departs from London Heathrow on Wed, 4 Nov, arriving in San Diego International.Price includes taxes and charges.From 636 €, select.

London.637 € per passenger.Departing Tue, 8 Dec, returning Tue, 12 Jan.Return flight with Finnair.Outbound direct flight with Finnair departs from San Diego International on Tue, 8 Dec, arriving in London Heathrow.Inbound direct flight with Finnair departs from London Heathrow on Tue, 12 Jan, arriving in San Diego International.Price includes taxes and charges.From 637 €, select.

London.637 € per passenger.Departing Mon, 12 Oct, returning Wed, 21 Oct.Return flight with Finnair.Outbound direct flight with Finnair departs from San Diego International on Mon, 12 Oct, arriving in London Heathrow.Inbound direct flight with Finnair departs from London Heathrow on Wed, 21 Oct, arriving in San Diego International.Price includes taxes and charges.From 637 €, select.

London.638 € per passenger.Departing Sun, 29 Nov, returning Tue, 8 Dec.Return flight with Finnair.Outbound direct flight with Finnair departs from San Diego International on Sun, 29 Nov, arriving in London Heathrow.Inbound direct flight with Finnair departs from London Heathrow on Tue, 8 Dec, arriving in San Diego International.Price includes taxes and charges.From 638 €, select.

Find the cheapest month to fly from San Diego to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego to London flights are currently cheapest in December.

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Direct flights from San Diego to London

Alternative San Diego to London routes

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

San Diego to London: Flight information

The things to know before you go.

Cheapest flight found	594 €
Cheapest month to fly	December
Average flight time	10 hrs, 42 mins
Most popular airline	Alaska Airlines
Average flights per week	59

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

How many airports are there in London?

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.

How much are return flights from San Diego to London?

The best price we found for a return flight from San Diego to London is 594 €. 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.

How long does it take to fly from San Diego to London?

10 hours and 42 minutes is the average flight time from San Diego to London.

Which airlines fly direct from San Diego to London?

Alaska Airlines, American Airlines and British Airways fly direct from San Diego to London.

How many flights are there a week from San Diego to London?

As of September 2026, there are 59 flights per week flying from San Diego to London.

When is the cheapest time to fly from San Diego to London?

The cheapest month to fly from San Diego to London is usually December.

Which is the cheapest airport to fly into in London?

If you're flying from San Diego, the cheapest airport near London is London Luton – which is 44.6 km away from the centre of London. We've found flights into this airport from 594 €.

Which upcoming date is cheapest to fly from San Diego to London on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to London on Friday, 4 December 2026.

Can I get a direct flight from San Diego to London?

Yes – the average flight time is 10 hours and 42 minutes.

How can I get the best flight deal from San Diego to London?

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 London 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.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in London?

In September, the average temperature is usually around 16°C. July is typically the warmest month in London, when it usually averages around 23°C. You can expect the least rain in April. The coldest month is January, with temperatures averaging 2°C. The rainiest month is October.

Which is the cheapest airline to fly from San Diego to London with?

The cheapest airline that flies to London is Alaska Airlines. And the cheapest airline that flies to London Heathrow Airport is Finnair.

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

San Diego's main base, San Diego International Airport (SAN), is where countless incredible trips begin. Explore your departure options from here for your flight from San Diego to London.
You can arrive at London Heathrow Airport (LHR), London Gatwick Airport (LGW) or London Stansted Airport (STN). You can also hop off the plane at London Luton Airport (LTN) and London City Airport (LCY) in London.
The average duration of a direct San Diego to London flight is 10 hours 40 minutes.
London is eight hours ahead of San Diego and observes the UTC+0 timezone.
With ten weekly flights between the two airports, San Diego International Airport (SAN) to London Heathrow Airport (LHR) is the busiest route. Hop on the earliest flight from San Diego to London with British Airways at 16:40. If you prefer to get more out of your day before jetting off, the last departure from SAN to LHR is with British Airways at 19:50.
For a relaxed travel experience, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to catch your San Diego to London flight.
During popular months such as August, you'll want to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead for an international flight when you fly during peak periods in general.

How to find the cheapest flights from San Diego to London

Booking ahead of time is often the key to finding a cheap San Diego to London flight. Fares tend to rise as demand increases, so the nearer you get to departure, the more you'll likely spend.
If you're willing to be flexible with your trip dates, use the 'Whole month' search tool. It'll show you the cheapest price in every month when searching for your plane ticket from San Diego to London.
You don't need to search every day to see if prices have dropped when you create a Price Alert. We'll notify you as soon as there's a better deal on cheap flights from San Diego to London.
Find an affordable San Diego to London flight with the help of our filters. Select your preferred duration, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from San Diego

San Diego International Airport (SAN)

If you're looking for a direct flight from San Diego to London, you can leave from San Diego International Airport (SAN). Get from SAN to London Heathrow Airport (LHR) in one continuous trip.
Look out for promotions with British Airways. This airline offers direct San Diego to London plane tickets from SAN.
Stopovers are the ideal opportunity to break up your journey — and possibly even explore a different city. When searching for San Diego to London flights departing from San Diego International Airport, uncheck the 'Direct flights only' box to see where you can visit along the way. Here are some options to consider:
- Denver International Airport (DEN)
- Los Angeles International Airport (LAX)
- New York John F. Kennedy Airport (JFK)
Located around 5 kilometres from the centre of San Diego, SAN can be reached in about 15 minutes by car (depending on traffic). The journey by public transport is roughly 25 minutes.
In search of a convenient hotel near San Diego International Airport? If you're catching an early flight from San Diego to London, these stays will have you moments from check-in:
74% of flights that leave from San Diego International Airport reach their destination on time.
The address for SAN is N Harbour Dr.

Arriving in London

London Heathrow Airport (LHR)

The distance from London Heathrow Airport (LHR) to central London is roughly 26 kilometres. It'll take you around 45 minutes to get to the centre driving.
It typically takes 25 minutes to get there when travelling by public transport.
The last thing you want is a long journey to your hotel if you're landing late on a flight from San Diego to London. Reserve one of these accommodation options near LHR instead:
Begin your adventure by picking up a London Heathrow Airport rental car. Grab your wheels from Surprice, U-Save or Green Motion and explore beyond London's usual tourist stops.
Booking your vehicle from London Heathrow Airport around one week ahead can help you get the best possible rate.

London Gatwick Airport (LGW)

London Gatwick Airport (LGW) is around 40 kilometres from central London. Once you've disembarked your flight from San Diego to London, it takes approximately 1 hour 5 minutes to get to the heart of the city in a taxi or ride-share.
You can expect the journey to take approximately 45 minutes on public transport.
There are some great places ready to welcome you near LGW. Unwind after your San Diego to London flight at any of these perfectly located options:
The fastest way to reach your destination is with a London Gatwick Airport rental car. Grab your wheels from Green Motion, U-Save or Drivalia and be off and running.
Lock in the lowest price by reserving your ride from LGW three weeks ahead of time. You'll also have access to a greater selection of vehicles.

London Stansted Airport (STN)

Step off your flight from San Diego to London and head straight for your hotel or jump right into exploring. Central London is around 48 kilometres from London Stansted Airport (STN) and usually takes 1 hour 5 minutes to reach by car.
Public transport will take you there in around 45 minutes.
Book a hotel near STN and get from baggage claim to bedtime in a flash. Whether you're arriving on a late San Diego to London flight or just want to simplify your travel plans, these stays will have you settling in quickly:
Be in the driver's seat of the next chapter of your journey by picking up a London Stansted Airport rental car. Green Motion, Drivalia and Europcar make getting on the road smooth sailing.
About four weeks before your flight from San Diego to London is a good time to book your ride from STN. You're likely to find a better rate or score some early bird savings.

Best time to go to London

It's time to plan your travel dates for your flight from San Diego to London. July is the busiest month to visit London. If you like a more low-key vibe, go in March.
Before locking in your San Diego to London tickets, think about the type of weather you enjoy. July is the warmest month in London, with temperatures ranging from 11ºC (52ºF) to 26ºC (79ºF).
For cooler conditions, search for a cheap flight from San Diego to London in January when temperatures average between 0ºC (32ºF) and 9ºC (48ºF).

More about London

When it comes to looking for somewhere to rest your head, you'll find the best places to stay in London right here. Explore these hotels once you've locked in your flight from San Diego to London:
There are so many things to do and see in this city it can be difficult to know where to begin. The British Museum, Westminster Abbey and Big Ben are leading attractions which should feature on any well-planned London itinerary.

Explore more of the United Kingdom

You've done London, now it's time to explore more of the United Kingdom. Journey about 257 kilometres northwest to Manchester to tick off its leading attractions. From Manchester United Museum & Stadium Tour to The Homes of Football and Science and Industry Museum, you've got a jam-packed schedule ahead.
If you want to check out another side of the United Kingdom, consider Birmingham, roughly 161 kilometres northwest of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome and Bournville Experience are key reasons to visit.