$298 Cheap Flights from Phoenix (PHX) to London (LHR)

View $298 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)

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Cheap Flights from Phoenix to London (PHX-LHR)

Prices were available within the past 7 days and start at $298 for one-way flights and $510 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, Jan 18 - Tue, Feb 3
PHX
Phoenix
LHR
London
$510 Roundtrip, found 5 hours ago
$510
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Sun, Jan 18 from Phoenix to London, returning Tue, Feb 3, priced at $510 found 5 hours ago
Lufthansa
Tue, Aug 26 - Wed, Sep 3
PHX
Phoenix
LHR
London
$515 Roundtrip, found 4 days ago
$515
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Tue, Aug 26 from Phoenix to London, returning Wed, Sep 3, priced at $515 found 4 days ago
Virgin Atlantic
Sun, Aug 3 - Tue, Aug 12
PHX
Phoenix
LHR
London
$516 Roundtrip, found 6 hours ago
$516
Roundtrip
found 6 hours ago
Select Virgin Atlantic flight, departing Sun, Aug 3 from Phoenix to London, returning Tue, Aug 12, priced at $516 found 6 hours ago
Delta
Sun, Aug 3 - Tue, Aug 12
PHX
Phoenix
LHR
London
$516 Roundtrip, found 6 hours ago
$516
Roundtrip
found 6 hours ago
Select Delta flight, departing Sun, Aug 3 from Phoenix to London, returning Tue, Aug 12, priced at $516 found 6 hours ago
Air Canada
Tue, Jan 13 - Tue, Feb 3
PHX
Phoenix
LHR
London
$517 Roundtrip, found 5 hours ago
$517
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Tue, Jan 13 from Phoenix to London, returning Tue, Feb 3, priced at $517 found 5 hours ago
British Airways
Wed, Aug 6 - Mon, Aug 18
PHX
Phoenix
LHR
London
$518 Roundtrip, found 15 hours ago
$518
Roundtrip
found 15 hours ago
Select British Airways flight, departing Wed, Aug 6 from Phoenix to London, returning Mon, Aug 18, priced at $518 found 15 hours ago
American Airlines
Sun, Aug 3 - Tue, Aug 12
PHX
Phoenix
LHR
London
$519 Roundtrip, found 6 hours ago
$519
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sun, Aug 3 from Phoenix to London, returning Tue, Aug 12, priced at $519 found 6 hours ago
Iberia
Sun, Aug 17 - Tue, Aug 26
PHX
Phoenix
LHR
London
$519 Roundtrip, found 5 hours ago
$519
Roundtrip
found 5 hours ago
Select Iberia flight, departing Sun, Aug 17 from Phoenix to London, returning Tue, Aug 26, priced at $519 found 5 hours ago
Air Canada
Tue, Sep 2 - Tue, Sep 9
PHX
Phoenix
LHR
London
$519 Roundtrip, found 2 hours ago
$519
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Tue, Sep 2 from Phoenix to London, returning Tue, Sep 9, priced at $519 found 2 hours ago
British Airways
Sun, Aug 17 - Mon, Sep 1
PHX
Phoenix
LHR
London
$519 Roundtrip, found 5 days ago
$519
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Aug 17 from Phoenix to London, returning Mon, Sep 1, priced at $519 found 5 days ago

Find the cheapest month to fly from Phoenix (PHX) to London (LHR)

October is typically the cheapest month to fly

From $484 - $1,032 per traveler.

Graph displaying average flight prices per month

Flights from Phoenix (PHX) to London (LHR)
Origin airport
Sky Harbor Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, United, Virgin Atlantic, WestJet
Roundtrip price
$510
Distance
5258 mi
Average flight time
18 hours 2 mins

Phoenix to London Flights

The cheapest times to fly from Phoenix to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to London are during the month of January. You can find some of the cheapest flights from Phoenix to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to London

Sunday is one of the best days to book for cheap flights from Phoenix to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $298 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR) cost?
Grab cheap return flights starting from $520 from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Iberia flight leaving PHX on July 29 2025 and touching down at LHR. The price was last updated on July 5 2025 and has not changed since.
What is the cheapest month to fly from PHX to LHR?
The cheapest flights from PHX to LHR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)?
You can fly directly from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR) on a British Airways flight.
What is the cheapest airline that flies from PHX to LHR?
With prices starting from $414 for a one-way journey from PHX to LHR, Iberia is currently the cheapest airline operating this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHX on September 23 2025. Prices were last updated on July 5 2025 and have not changed since.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)?
On average, Sky Harbor Intl. Airport (PHX) only offers 1 direct flight to Heathrow Airport (LHR) per day. For additional options, try our easy-to-use filters. Just enter your travel details, then click on "1 Stop" or "2+ Stops" to find flights offering layovers.
What are the most popular departure times for flights from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)?
More passengers fly between PHX and LHR at 8 PM than at any other time of day. Rather go when it's quieter? Travel outside of rush hours and you could save on your fare as well.
What day of the week has the most flights from PHX to LHR?
If you depart on a Saturday, you'll get the biggest range of choices for flights from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR).
What is the earliest flight from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)?
Catch the earliest flight at around 8:30PM UTC-7, heading out of Sky Harbor Intl. Airport (PHX). You'll be in the air for about 9h 50m, arriving at Heathrow Airport (LHR) at approximately 1:20PM UTC+0.
How long does it take to fly from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)?
Flights from PHX to LHR have an average travel time of 9 hours and 50 minutes. The distance between the two airports is 5,300 mi.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)?
To reach Heathrow Airport (LHR) without delays, opt for a flight that leaves from Sky Harbor Intl. Airport (PHX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for London from Sky Harbor Intl. Airport (PHX)?
Heathrow Airport (LHR) is the only airport in London with direct flights from Sky Harbor Intl. Airport (PHX). Browse the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR) last-minute?
Last-minute bookings from PHX to LHR are generally more expensive. For the best rates, start looking for flights as early as possible. That said, if your travel plans are flexible, you may score a cheap ticket right before you leave.
Is it cheaper to book a PHX to LHR flight and hotel package?
Compared with arranging hotels and flights separately, booking a PHX to LHR flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our wide range of stays, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to Heathrow Airport (LHR)?
If you booked your PHX to LHR flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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*Available to One Key members.