Cheap flights from Phoenix Sky Harbor Intl Airport to London from $248

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Phoenix Sky Harbor Intl Airport, with most prices found around $873. If you’re not able to fly to London Heathrow Airport in January, then November is your next best option. Flight prices from Phoenix Sky Harbor Intl Airport to London Heathrow Airport during November average around $951.

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,058. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,302.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Phoenix Sky Harbor Intl Airport to London Heathrow Airport in the evening for as low as $1,079. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,235.

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 $1,134 when searching weeks out. 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 $1,098 on momondo.

There are 3 cabin classes available to choose from on Phoenix Sky Harbor Intl Airport to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 24% on your flight if you consider stops on a Phoenix Sky Harbor Intl Airport to London Heathrow Airport flight.

As of October 2026, prices for Phoenix Sky Harbor Intl Airport to London Heathrow Airport flights are approximately 17% more expensive when compared to flights at the same time last year.

JetBlue and Turkish Airlines are the most popular carriers operating from Phoenix Sky Harbor Intl to London Heathrow

British Airways, American Airlines 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 53% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 9 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

Flights via New York (JFK) offer the lowest average round-trip price of $770.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 11h 58m.

Denver (DEN) has the shortest average layover time for this route: 1h 29m.

As of October 2026, 3 flights take off from Phoenix Sky Harbor Intl Airport and land in London Heathrow Airport each day. The most common flight departure time for this route is 9:00PM, with 55% of daily flights taking off in the evening.

As of October 2026, 27 flights take off from Phoenix Sky Harbor Intl Airport and land in London Heathrow Airport each week. The most common flight departure day for this route is Wed, with 33% of weekly flights taking off on this day.