Cheap flights from Phoenix to London from $345

The cheapest month to fly to London from Phoenix is in October. Flight prices, which tend to average around $658, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Phoenix averaging around $720.

The cheapest day to depart from Phoenix to London is on a Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $872. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,134. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Phoenix in the evening is the least expensive time of day to depart. momondo users have found prices as low as $931 when looking at flights departing in the evening. Flights to London are more costly in the afternoon, with an average ticket price of $1,014. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Phoenix Sky Harbor Intl to London Heathrow for the best Phoenix - London flight prices

You are more likely to see cheaper flights to London from Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $938 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Phoenix for as low as $758 on momondo.

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

JetBlue, Aer Lingus, and SWISS are the most popular carriers operating from Phoenix to London

British Airways, American Airlines and Iberia are the top three most popular airlines that fly to London from Phoenix according to our data. British Airways is the first choice among our users, with 55% of people opting to fly with this airline when traveling to London. Keep in mind that there are 10 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

7 flights are operational daily from Phoenix to London as of April 2026. The most popular departure time for this route is 9:00PM, with 68% of flights per day taking off in the evening.

As of April 2026, 51 flights take off from Phoenix and land in London each week. The most common flight departure day for this route is Mon, with 18% of weekly flights taking off on this day.