£402 Find Cheap Flights from London Heathrow Airport to San Diego – Compare and Save

If your flying dates are flexible, you should consider flying to San Diego on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from London Heathrow Airport to San Diego. For your return ticket, we recommend flying on a Sunday and avoiding Fridays for the best deals.

The cheapest month for flights from London Heathrow Airport to San Diego is February, where tickets cost £500 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £990 and £853 respectively.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £746 on average.

To get a below average price on the flight from London Heathrow Airport to San Diego, you should book around 2 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

In the past 5 days, the cheapest return tickets from London Heathrow Airport to San Diego were found on Lufthansa (£615) and British Airways (£616).

There are 5 airlines that fly direct from London Heathrow Airport to San Diego. They are: Aer Lingus, American Airlines, British Airways, Finnair and Iberia. The cheapest price of all airlines flying this route was found with Iberia at £429 for a return flight. On average, the best prices for this route can be found at Iberia.

Weekly flights between London and San Diego historically see delays in approximately 16% of cases, with the average delay over the past year being 143 minutes.

Typically, flights leaving in the morning tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Thursday has typically experienced more delays than other days.

Based on our data, British Airways have experienced the fewest delays on this route in the past 12 months, with only about 16% of their flights encountering any delays.

Denver (DEN) is the top choice – 33% of KAYAK users who clicked on one-stop flights from London Heathrow Airport to San Diego picked an itinerary connecting there.

Flights via Philadelphia (PHL) offer the most affordable fares, with an average price of £542 for a return.

Consider flying via Amsterdam (AMS) for the shortest journey. The average one-way travel time for flights connecting there is 13h 30m.

If you prefer a quick connection, Amsterdam (AMS) often has the shortest stopovers from London Heathrow Airport to San Diego, with an average time of 1h 03m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 1 and 2 direct flights that take off from London Heathrow Airport and land in San Diego, with an average flight time of 11h 20m. The most common departure time is 11:00 and most flights take off in the morning. Each week, there are 13 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Tuesday.