Cheap flights from San Diego to the United Kingdom from £202

The cheapest month to fly to United Kingdom from San Diego is in February. Flight prices, which tend to average around £600, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from San Diego during the month March is also very affordable. Most momondo users find prices during this month for around £619.

The cheapest day to depart from San Diego to United Kingdom is on a Sunday. Travellers who choose to depart for United Kingdom on a Sunday will often find tickets for as low as £645. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to United Kingdom for around £1,321.

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £725. Try not to purchase tickets in the afternoon because they tend to be around £816. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from San Diego to London Heathrow for the best San Diego - United Kingdom flight prices

You are more likely to see cheaper flights to United Kingdom from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £796 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from San Diego for as low as £714 on momondo.

There are 4 cabin classes available to choose from on San Diego to United Kingdom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of October 2026, 2 flights take off from San Diego and land in United Kingdom each day. The most common flight departure time for this route is 19:00, with 64% of daily flights taking off in the evening.

As of October 2026, 19 flights take off from San Diego and land in United Kingdom each week. The most common flight departure day for this route is Wed, with 32% of weekly flights taking off on this day.