Cheap flights from Phoenix Sky Harbor Intl Airport to London from £325

In general, October is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £507. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from Phoenix Sky Harbor Intl Airport averaging around £543.

On average, the least expensive day to fly to London Heathrow Airport from Phoenix Sky Harbor Intl Airport is on a Monday. momondo users have found tickets for Monday departures for as low as £616. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £1,031.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Phoenix Sky Harbor Intl Airport to London Heathrow Airport in the afternoon for as low as £730. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £763 on average. Flights to London Heathrow Airport from Phoenix Sky Harbor Intl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to London Heathrow Airport from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £684 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Phoenix Sky Harbor Intl Airport for as low as £556 on momondo.

No. A direct flight is the cheapest option for a flight between Phoenix Sky Harbor Intl Airport to London Heathrow Airport.

As of May 2026, prices for Phoenix Sky Harbor Intl Airport to London Heathrow Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

JetBlue is the most popular carrier operating from Phoenix Sky Harbor Intl to London Heathrow

British Airways, JetBlue and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Phoenix Sky Harbor Intl Airport according to our data. British Airways is the first choice among our users, with 68% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

As of May 2026, there are 9 flights per day flying from Phoenix Sky Harbor Intl Airport to London Heathrow Airport. The most common time of day flights depart is 21:00, with 55% of flights taking off in the evening.

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