Cheap flights from London Heathrow Airport to Phoenix from £402

If you’re not able to fly to Phoenix in February, then January is your next best option. Flight prices from London Heathrow Airport to Phoenix during January average around £423.

The cheapest day to depart from London Heathrow Airport to Phoenix is on a Wednesday when prices can be found for as low as £619. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Phoenix for around £713.

According to our data, the cheapest time of day to fly to Phoenix is in the afternoon. momondo users have found flights departing from London Heathrow Airport to Phoenix in the afternoon for as low as £647. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Phoenix is in the morning when prices are around £668.

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

You are more likely to see cheaper flights to Phoenix from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix for around £690 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix from London Heathrow Airport for as low as £594 on momondo.

JetBlue and United Airlines are the most popular carriers operating from London Heathrow to Phoenix

British Airways, American Airlines and Finnair are the top three most popular airlines that fly to Phoenix from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 73% of people opting to fly with this airline when travelling to Phoenix. Keep in mind that there are 11 different airlines that fly to Phoenix on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between London and Phoenix have experienced a delay on any given week. The average delay length over the past 12 months has been 158 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 24% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Phoenix is 9 per day as of May 2026. The most frequent departure time is 16:00, with 55% of daily flights leaving in the afternoon.

63 flights are operational weekly from London Heathrow Airport to Phoenix as of May 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.