Cheap flights from San Diego International to London

Compare San Diego International to London flight deals

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

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Flight deals from San Diego International to London

Looking for a cheap last-minute deal or the best return flight from San Diego International Airport to London? If you want to travel next month, return fares start from $1,212. Find the lowest prices on one-way and return tickets right here.

London.$413 per passenger.Departing Sun, 8 Nov.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from San Diego International on Sun, 8 Nov, arriving in London Heathrow.Price includes taxes and charges.From $413, select.

London.$417 per passenger.Departing Wed, 7 Apr.One-way flight with Iberia.Outbound direct flight with Iberia departs from San Diego International on Wed, 7 Apr, arriving in London Heathrow.Price includes taxes and charges.From $417, select.

London.$417 per passenger.Departing Mon, 1 Mar.One-way flight with Iberia.Outbound direct flight with Iberia departs from San Diego International on Mon, 1 Mar, arriving in London Heathrow.Price includes taxes and charges.From $417, select.

London.$417 per passenger.Departing Wed, 4 Nov.One-way flight with Iberia.Outbound direct flight with Iberia departs from San Diego International on Wed, 4 Nov, arriving in London Heathrow.Price includes taxes and charges.From $417, select.

London.$418 per passenger.Departing Mon, 18 Jan.One-way flight with British Airways.Outbound direct flight with British Airways departs from San Diego International on Mon, 18 Jan, arriving in London Heathrow.Price includes taxes and charges.From $418, select.

London.$418 per passenger.Departing Mon, 19 Oct.One-way flight with British Airways.Outbound direct flight with British Airways departs from San Diego International on Mon, 19 Oct, arriving in London Heathrow.Price includes taxes and charges.From $418, select.

London.$419 per passenger.Departing Tue, 22 Sep.One-way flight with Iberia.Outbound direct flight with Iberia departs from San Diego International on Tue, 22 Sep, arriving in London Heathrow.Price includes taxes and charges.From $419, select.

London.$419 per passenger.Departing Mon, 10 Aug.One-way flight with Iberia.Outbound direct flight with Iberia departs from San Diego International on Mon, 10 Aug, arriving in London Heathrow.Price includes taxes and charges.From $419, select.

London.$419 per passenger.Departing Tue, 28 Jul.One-way flight with Iberia.Outbound direct flight with Iberia departs from San Diego International on Tue, 28 Jul, arriving in London Heathrow.Price includes taxes and charges.From $419, select.

London.$419 per passenger.Departing Tue, 8 Dec.One-way flight with Air France.Outbound indirect flight with Air France, departs from San Diego International on Tue, 8 Dec, arriving in London Heathrow.Price includes taxes and charges.From $419, select.

London.$421 per passenger.Departing Wed, 17 Feb.One-way flight with British Airways.Outbound direct flight with British Airways departs from San Diego International on Wed, 17 Feb, arriving in London Heathrow.Price includes taxes and charges.From $421, select.

London.$490 per passenger.Departing Sun, 7 Jun.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from San Diego International on Sun, 7 Jun, arriving in London Stansted.Price includes taxes and charges.From $490, select.

London.$612 per passenger.Departing Fri, 29 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Fri, 29 May, arriving in London Heathrow.Price includes taxes and charges.From $612, select.

London.$653 per passenger.Departing Tue, 29 Dec.One-way flight with British Airways.Outbound direct flight with British Airways departs from San Diego International on Tue, 29 Dec, arriving in London Heathrow.Price includes taxes and charges.From $653, select.

London.$717 per passenger.Departing Thu, 30 Apr.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from San Diego International on Thu, 30 Apr, arriving in London Heathrow.Price includes taxes and charges.From $717, select.

London.$1,032 per passenger.Departing Wed, 17 Jun.One-way flight with British Airways.Outbound direct flight with British Airways departs from San Diego International on Wed, 17 Jun, arriving in London Heathrow.Price includes taxes and charges.From $1,032, select.

Find the cheapest month to fly from San Diego International to London

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

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Direct flights from San Diego International to London

Alternative San Diego International to London routes

Looking for the cheapest, fastest or easiest route from San Diego International 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	$413
Cheapest month to fly	November
Average flight time	10 hrs, 39 mins
Most popular airline	Alaska Airlines
Average flights per week	57

Finding cheap flights from San Diego International 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 International to London?

The best price we found for a return flight from San Diego International to London is $971. 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 International to London?

10 hours and 39 minutes is the average flight time from San Diego International to London.

Which airlines fly direct from San Diego International to London?

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

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

As of April 2026, there are 57 flights per week flying from San Diego International to London.

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

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

Which is the cheapest airport to fly into in London?

If you're flying from San Diego International Airport, the cheapest airport near London is London Gatwick – which is 40.3 km away from the centre of London. We've found flights into this airport from $971.

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

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to London on Sunday, 19 July 2026.

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

Yes – the average flight time is 10 hours and 39 minutes.

How can I get the best flight deal from San Diego International Airport 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 April, the average temperature is usually around 9°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.

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

Currently, Alaska Airlines and British Airways offer the cheapest flight tickets to London.

Travelling from San Diego International Airport (SAN) to London: what you need to know

Approximately 11 hours 20 minutes is how long you can expect to be travelling on a direct flight from San Diego International Airport to London.
The timezone in London is UTC+0. The city is eight hours ahead of San Diego, where San Diego International Airport is located.
San Diego International Airport (SAN) to London Heathrow Airport (LHR) is the most traveled route, with 11 departures a week to pick from. If you prefer starting your day later, the last flight from SAN to LHR is with British Airways at 19:50. Choose the first departure operated by British Airways at 16:40 if you want to get on your way earlier.
Leave enough time to make your SAN to London flight. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.
Be prepared for bigger queues in popular months such as July. Arriving up to four hours in advance for international flights and two hours for domestic departures is a wise move.
Direct San Diego International Airport to London tickets are available for booking. London Heathrow Airport (LHR) is where you'll arrive.
Look out for offers from British Airways. This carrier has direct flights from San Diego International Airport to London.
Consider adding a stopover to potentially save on your plane ticket from SAN to London. All you need to do is uncheck 'Direct flights only' during your search. Give yourself a breather (and maybe even a better deal) by stopping at one of these connection hubs:
- Denver International Airport (DEN)
- Los Angeles International Airport (LAX)
- New York John F. Kennedy International Airport (JFK)
Located around 3 kilometres from the centre of San Diego, SAN can be reached in about 15 minutes by car (depending on traffic). Travelling on public transport will take roughly 25 minutes.
Planning to catch an early flight from San Diego International Airport to London? Avoid the last-minute rush to the terminal (and catch some extra z's) by choosing one of these stays close to SAN:
Of the departures from San Diego International Airport, 74% land on time at their destination.
You'll find SAN at N Harbour Dr.

How to find the cheapest flights from San Diego International Airport (SAN) to London

The best price we've found for a one-way San Diego International Airport to London flight is $413. The cheapest price for a return flight is $971. Remember fares can change due to demand at the time of booking.
Don't wait until the last moment. You're more likely to pick up cheap flights from SAN to London if you book ahead. Airlines often offer some excellent early bird deals.
The 'Whole month' search tool will show you the cheapest tickets from San Diego International Airport to London across every month. It's a great way to find a bargain if your travel dates are flexible.
Spend less time searching for cheap flights from SAN to London by creating a Price Alert. You'll get an email or notification through the app when a new discounted fare appears.
Tailor your trip with filters. Choose your arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from San Diego International Airport to London.

Airports in London

London Heathrow Airport (LHR)

London Heathrow Airport (LHR) to the centre of London takes about 45 minutes to reach by car. The centre is roughly 24 kilometres away.
Getting to the centre on public transport will take you around 25 minutes.
If you're coming in on a late flight from San Diego International Airport to London, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and sleeping soon after at one of these hotels near LHR:
To secure the lowest price, reserve your ride from London Heathrow Airport about one week in advance of your flight from SAN to London.

London Gatwick Airport (LGW)

London Gatwick Airport (LGW) is around 48 kilometres from central London. Following your flight from San Diego International Airport to London, it'll take you around 1 hour 5 minutes to get to the heart of the city in a ride-share or taxi.
If you choose to travel on public transport, the ride to the centre will take you 1 hour 20 minutes or so.
After stepping off your SAN to London flight, tuck yourself in at a hotel close to LGW. These are some great accommodation options that'll help you slip into relaxation mode:
Avoid paying more than you need to. Securing your ride three weeks ahead of your arrival at LGW can land you a better rate.

London Stansted Airport (STN)

Hop off your flight from San Diego International Airport to London and head straight for your hotel or start exploring right away. The centre of London is around 56 kilometres from London Stansted Airport (STN) and typically takes 1 hour 5 minutes to reach driving.
The journey will take you roughly 45 minutes when travelling by public transport.
Reserve a hotel close to STN and get from baggage claim to bedtime in a flash. Whether you're coming in on a late SAN to London flight or just want a stress-free arrival, these accommodation options offer convenience when you need it most:
If you're searching for a specific kind of vehicle, lock in your ride from STN around four weeks before your flight from San Diego International Airport to London. This improves your chances of getting your preferred car, on top of a better deal.

Best time to go to London

It's time to figure out your trip dates for your flight from San Diego International Airport to London. July is the most popular month to visit London. If you want a more low-key vibe, go in January.
Book a San Diego International Airport to London plane ticket with a departure in July to visit the city during its warmest month. Expect temperatures to range from 11ºC (52ºF) to 26ºC (79ºF).
January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Look for a cheap ticket from SAN to London around that time if you want to travel when it's cooler.

More about London

After booking your flight from San Diego International Airport to London, choose a hotel that combines comfort with a great location. Make one of these options your base for exploring London:
All great journeys should include a little sightseeing. Westminster Abbey, The British Museum and Big Ben are must-visits when exploring London.

Explore more of the United Kingdom

London has its own special appeal, but there are so many other corners of the United Kingdom you should also see. Around 257 kilometres northwest of London, a trip to Manchester will keep your itinerary busy. Start with popular sights like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
If there's time to check out another side of the United Kingdom, head for Birmingham, roughly 161 kilometres northwest of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are among its highlights.