Cheap flights from California to London from $163

The cheapest month to fly to London from California is in February. Flight prices, which tend to average around $667, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from California averaging around $744.

The cheapest day to depart from California to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $894. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,014. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from California at noon is the least expensive time of day to depart. momondo users have found prices as low as $757 when looking at flights departing at noon. Flights to London are more costly in the afternoon, with an average ticket price of $972. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Los Angeles to London Gatwick for the best California - London flight prices

You are more likely to see cheaper flights to London from California when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $952 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from California for as low as $871 on momondo.

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

KLM, JetBlue, and WestJet are the most popular carriers operating from California to London

British Airways, United Airlines and Virgin Atlantic are the top three most popular airlines that fly to London from California according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when traveling to London. Keep in mind that there are 24 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

As of September 2026, 97 flights take off from California and land in London each day. The most common flight departure time for this route is 4:00PM, with 57% of daily flights taking off in the afternoon.

As of September 2026, there are 681 flights per week flying from California to London. The most common day of the week flights depart is Thu, with 16% of flights taking off on this day.