£209 Find Cheap Flights from San Diego to the United Kingdom – Compare and Save

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1 adult, Economy, 0 bags

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Cheap Flights from San Diego to the United Kingdom

Cheapest return flight prices found by our users on KAYAK in the last 5 days
London
London1 stop£640
Manchester
Manchester3 stops£569
Edinburgh
Edinburgh3 stops£630
Bristol
Bristol2 stops£1,188
Liverpool
Liverpool3 stops£690
Leeds
Leeds2 stops£1,205
Cardiff
Cardiff3 stops£772
London
London1 stop£640
Manchester
Manchester3 stops£569
Edinburgh
Edinburgh3 stops£630
Bristol
Bristol2 stops£1,188
Liverpool
Liverpool3 stops£690
Leeds
Leeds2 stops£1,205
Cardiff
Cardiff3 stops£772
Booking Insights

KAYAK's insights & trends for San Diego to the United Kingdom flights

Get data-powered insights and trends into flights from San Diego to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Diego to the United Kingdom flight route?

The cheapest ticket to the United Kingdom from San Diego found in the last 5 days was to London, at £776 return. The most popular route is from San Diego (SAN) to London Heathrow Airport (LHR), and the cheapest return airline ticket found on this route in the last 5 days was £776.

What is the cheapest time of day to fly to the United Kingdom?

The cheapest time of day to fly to the United Kingdom is generally at night, when retur flights cost £726 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the evening, which is peak travel time and where the average cost of a ticket is £817.

Can I save money by flying with a stopover from San Diego to the United Kingdom?

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 £693 on average.

What is the cheapest month to fly from San Diego to the United Kingdom?

The cheapest month for flights from San Diego to the United Kingdom is February, when tickets cost £600 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £1,106 and £1,000 respectively.

What’s the cheapest day of the week to fly from San Diego to United Kingdom?

When flying from San Diego to United Kingdom, you should consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to San Diego, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

How far in advance should I book a flight from San Diego to the United Kingdom?

To get a below-average price on a flight from San Diego to the United Kingdom, you should book around 5 weeks before departure, which saves you about 10% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know - Cheap tickets from San Diego to the United Kingdom

Low season

January

Cheapest flight

£209
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from San Diego to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from San Diego to the United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Diego to the United Kingdom is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from San Diego to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to the United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Diego to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from San Diego to the United Kingdom

  • Looking for a cheap flight from San Diego to the United Kingdom? 25% of our users found tickets from San Diego to the United Kingdom for the following prices or less: London £247 one-way - £849 round-trip

Reviews of the top airline flying from San Diego to the United Kingdom

 
Need help choosing which airline to fly with from San Diego to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 8271 reviews
6.8Comfort
7.7Crew
7.0Boarding
6.5Entertainment
6.4Food
Airline reviews

I really enjoyed the flight…and food and the hospitality but didn’t get the food I requested for.

10.0 Excellentchitra, Oct 2026
Read more British Airways reviews

I really enjoyed the flight…and food and the hospitality but didn’t get the food I requested for.

A/C temp. was way too cold during the flight.

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

Awful it always is unfortunately is the only way to fly direct to london

I’ll fly with any other airline. Besides all the fees and not being able to change a flight even to a later flight without paying £150 charge. Or that the last flight the WiFi didn’t work, the food was so bad, and ran out of options. Seat didn’t recline. And the headset jack didn’t work. This isn’t my first flight with them, and on every flight there is always something wrong that makes the long 10 hours feel like an eternity. Never flying them again.

Horrible. Never again. Wouldn’t let us use the lounge. We had to pay for another lounge to have access.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

Busy flight and less room to rest on overnight flight.

More options for your flight from San Diego to the United Kingdom

Complete your trip to the United Kingdom with a hotel stay or car hire