£224 Cheap Flights from San Diego (SAN) to London (LHR)

Popular airlines from San Diego Intl. Airport (SAN) to Heathrow Airport (LHR)

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Cheap Flights from San Diego (SAN) to London (LHR)

Prices were available within the past 7 days and start at £224 for one-way flights and £403 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
British Airways
American Airlines
British Airways
Iberia
Delta
American Airlines
Air France
KLM
United

Find the cheapest month to fly from San Diego (SAN) to London (LHR)

October is typically the cheapest month to fly

From £417 - £577 per traveller.

Graph displaying average flight prices per month

Flight from San Diego to London route information
Origin airport
San Diego Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic, WestJet
Return price
£402
Distance
8756 km
Average flight time
18 hours 37 mins

Compare flights from San Diego to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Diego to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Diego Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Diego Intl. (SAN) to Heathrow (LHR)

The easiest way to view the best deals on flights from San Diego to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Diego Intl. to Heathrow start at just £403 and range up to £473.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Diego and London
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Diego to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Diego Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from SAN to Heathrow Airport?
Start packing your suitcase, because round-trip journeys between San Diego Intl. Airport (SAN) and Heathrow Airport (LHR) start from £403. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Diego Intl. Airport (SAN) to Heathrow Airport?
Each airline has different terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from San Diego Airport to London Heathrow that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Diego Airport to London Heathrow flights, you'll see a "no change fees" filter for you to select.
How far is the flight from San Diego Airport to LHR?
San Diego to Hounslow is around 8,800 kilometres, so get ready to spend quite a while in the air. Make sure you pack all the essentials, from your hoodie to your headphones. Toss in a couple of snacks to munch on throughout your flight too.
Which airlines fly direct from San Diego Airport to Heathrow Airport (LHR)?
A popular option with many frequent travellers, British Airways (BA) operates 30 monthly flights from San Diego Airport to London Heathrow. Pick the one that fits with your travel schedule and book your ticket today.
Are San Diego Airport to Heathrow Airport (LHR) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally find a bargain, with some of the cheapest airfares from San Diego Airport to London Heathrow popping up a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates the best flight deals continuously --- as early as a year in advance in some cases. It depends on the carrier though, as not every airline advertises prices so far in advance.

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