Cheap Flights from Phoenix (PHX) to London (LHR)

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Compare Phoenix Sky Harbor to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Phoenix Sky Harbor to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Phoenix Sky Harbor to London Heathrow? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Phoenix Sky Harbor to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix Sky Harbor to London Heathrow flights are currently cheapest in October.

Direct flights from Phoenix Sky Harbor to London Heathrow

Phoenix Sky Harbor to London Heathrow: Alternative routes

Compare routes from Phoenix Sky Harbor to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Phoenix to London: Flight information

The things to know before you go.
Cheapest flight found$904
Cheapest month to flyAugust
Average flight time10 hrs, 1 min
Most popular airlineFinnair
Average flights per week51

Finding cheap flights from Phoenix Sky Harbor to London Heathrow: Frequently asked questions

The best price we found for a return flight from Phoenix Sky Harbor to London Heathrow is $904. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
10 hours and 1 minute is the average flight time from Phoenix Sky Harbor to London Heathrow.
American Airlines, Finnair and Iberia fly direct from Phoenix Sky Harbor to London Heathrow.
As of May 2025, there are 51 flights per week flying from Phoenix Sky Harbor to London Heathrow.
The cheapest month to fly from Phoenix Sky Harbor to London Heathrow is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phoenix Sky Harbor Airport to London Heathrow Airport on Wednesday, 27 August 2025.
Yes – the average flight time is 10 hours and 1 minute.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta and British Airways offer the cheapest flight tickets to London Heathrow.

Flying from Phoenix Sky Harbour International Airport (PHX) to London Heathrow Airport (LHR): what you need to know

  • Around 10 hours 5 minutes is how long you can expect to be in the air on a direct flight from Phoenix Sky Harbour International Airport to London Heathrow Airport.

  • London's timezone is UTC+0, which makes London seven hours ahead of Phoenix.

  • Choose from 19 weekly Phoenix Sky Harbour International Airport to London Heathrow Airport flights. The 15:50 departure with American Airlines is the earliest flight available. British Airways operates the last service of the day at 20:30.

  • Your PHX to LHR flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak time such as July? School holidays and other high seasons can result in longer queues and delays at check-in and security. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • American Airlines has direct flights from Phoenix Sky Harbour International Airport to London Heathrow Airport. Book with this popular carrier, then get ready to discover the sights in London — and maybe even more of United Kingdom if you have time.

  • Most travellers choose to fly with American Airlines on this route.

  • American Airlines is the most punctual carrier offering PHX to LHR flights.

  • We make it simple to book a flight with a stopover. To see all your options for tickets from Phoenix Sky Harbour International Airport to London Heathrow Airport, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to tour your chosen city. Top stopovers between PHX and LHR include:

    • Denver International Airport

    • Harry Reid Airport (formerly McCarran Airport)

    • O'Hare International Airport

How to find the cheapest flights from Phoenix Sky Harbour International Airport (PHX) to London Heathrow Airport (LHR)

  • $523 is the lowest price for a one-way Phoenix Sky Harbour International Airport to London Heathrow Airport flight. A return flight starts at $904. These prices can change depending on demand and availability.

  • Book ten months before travelling. After looking at the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from PHX to LHR.

  • September is the cheapest month for flights from Phoenix Sky Harbour International Airport to London Heathrow Airport. If you're looking to travel at a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • Never miss a deal on cheap flights from PHX to LHR by setting up a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

  • Choose your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Phoenix Sky Harbour International Airport to London Heathrow Airport.

Handy information about Phoenix Sky Harbour International Airport (PHX)

  • You'll find PHX at 3400 Sky Harbour Boulevard.

  • 82.57% of flights departing from Phoenix Sky Harbour International Airport arrive at their destination on schedule. With its strong performance rating, you're unlikely to experience delays when setting off from PHX.

  • Central Phoenix to Phoenix Sky Harbour International Airport is approximately 8 kilometres. Depending on traffic, it'll take about 10 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Planning to take public transport? You can expect a journey time of around 35 minutes.

  • Searching for a convenient hotel close to PHX? If you're boarding an early flight from Phoenix Sky Harbour International Airport to London Heathrow Airport, these accommodation options will have you sleeping moments from your departure gate:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport to the centre of London has a drive time of around 55 minutes. It's approximately 31 kilometres away.

  • When travelling on public transport, expect a journey of around 1 hour.

When to fly to London Heathrow Airport (LHR)

  • July is the most popular month for flights from Phoenix Sky Harbour International Airport to London Heathrow Airport. For a quieter experience, go to London in February.

  • Before locking in your flight from Phoenix Sky Harbour International Airport to London Heathrow Airport, think about the type of weather you enjoy. July is the warmest month in London, with the temperature ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • If you want cooler conditions, search for a cheap ticket from PHX to LHR in January. Average temperatures are between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of United Kingdom

  • London has loads to offer, but there are so many other parts of United Kingdom just waiting to be discovered. About 161 kilometres north-west of London, a trip to Birmingham will keep you on the move. Start with popular sights like Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • If you want to check out another major destination in United Kingdom, consider Bristol, roughly 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.