Cheap flights from London to Phoenix from $539

If you are unable to visit Phoenix during the month of February, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around $449.

On average, the least expensive day to fly to Phoenix from London is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $814. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from London because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,044.

The cheapest time of day to fly to Phoenix is in the afternoon when flights can be purchased for as low as $850. At noon is when there is more demand to fly to Phoenix, so prices are often more expensive at around $935 per ticket.

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

You are more likely to see cheaper flights to Phoenix from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix for around $936 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix from London for as low as $811 on momondo.

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

British Airways, American Airlines and JetBlue are the top three most popular airlines that fly to Phoenix from London 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 Phoenix. Keep in mind that there are 3 different airlines that fly to Phoenix on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% 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 160 minutes.

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

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

According to our data, British Airways have had the least number of 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 and Phoenix is 9 per day as of May 2026. The most frequent departure time is 4:00PM, with 55% of daily flights leaving in the afternoon.

The number of flights available between London and Phoenix is 63 per week as of May 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.