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$431+ Cheap flights from Phoenix to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — LHR
Dec 23 — Dec 301
Tue 12/23
Tue 12/30
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to London Heathrow are usually found in October or February, booked 10 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Find flight deals from Phoenix to Heathrow

Cheapest flights from Phoenix to Heathrow
Explore the most affordable flight options available from Phoenix to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 23, 2025.

This FlightHub deal was found by Cheapflights users on 11/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:45 amPHX - LHR
2 stops23h 55mScandinavian Airlines
Tue 1/136:40 amLHR - PHX
2 stops23h 00mScandinavian Airlines
Deal found 11/22$695
This Cheapflightsfares deal was found by Cheapflights users on 11/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:55 amPHX - LHR
1 stop17h 55mWestJet
Tue 12/92:50 pmLHR - PHX
1 stop14h 57mWestJet
Deal found 11/23$727
This Expedia deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:35 pmPHX - LHR
1 stop34h 15mWestJet
Fri 12/52:50 pmLHR - PHX
1 stop14h 57mWestJet
Deal found 11/21$749
This Kiwi.com deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:35 pmPHX - LHR
1 stop34h 15mWestJet
Thu 12/42:50 pmLHR - PHX
1 stop14h 57mWestJet
Deal found 11/21$759
This CheapOair deal was found by Cheapflights users on 11/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:48 pmPHX - LHR
1 stop23h 12mJetBlue
Sun 12/79:20 amLHR - PHX
1 stop18h 41mJetBlue
Deal found 11/22$764
This Kiwi.com deal was found by Cheapflights users on 11/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:00 amPHX - LHR
1 stop20h 50mWestJet
Mon 12/82:50 pmLHR - PHX
1 stop14h 57mWestJet
Deal found 11/23$766
This Kiwi.com deal was found by Cheapflights users on 11/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:40 pmPHX - LHR
2 stops17h 10mWestJet
Thu 12/42:50 pmLHR - PHX
1 stop14h 57mWestJet
Deal found 11/22$780
This Kiwi.com deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:35 pmPHX - LHR
1 stop34h 15mWestJet
Fri 12/52:50 pmLHR - PHX
1 stop27h 18mWestJet
Deal found 11/21$785
This WestJet deal was found by Cheapflights users on 11/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:35 pmPHX - LHR
1 stop34h 15mWestJet
Mon 12/82:50 pmLHR - PHX
1 stop34h 57mWestJet
Deal found 11/23$790
This Priceline deal was found by Cheapflights users on 11/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/64:55 pmPHX - LHR
1 stop33h 35mJetBlue
Wed 12/109:20 amLHR - PHX
1 stop18h 41mJetBlue
Deal found 11/22$802
This Kiwi.com deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/289:10 pmPHX - LHR
2 stops32h 40mWestJet
Tue 12/22:50 pmLHR - PHX
1 stop14h 57mWestJet
Deal found 11/21$807

Cheap flight deals from Phoenix to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 23, 2025.

Round-trip from

$645
(Trip.com)

One-way from

$431
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$790
From Phoenix to London Heathrow
Search Deals
One-way flight from Phoenix to London Heathrow
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 23, 2025.
Use the filters below to find and compare flights from Phoenix to London Heathrow Airport that are best for you.

Fly from

Phoenix

Fly to

Heathrow

Route

Depart

Return

Price

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Wed 3/18

4:10 pm-5:40 pm

2 stops18h 30m

London Heathrow

Tue 3/24

7:05 am-9:52 pm

3 stops21h 47m

$660

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Thu 3/5

1:24 pm-9:40 pm

2 stops25h 16m

London Heathrow

Mon 3/9

7:05 am-9:52 pm

3 stops21h 47m

$721

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Thu 2/26

6:15 am-9:20 am

3 stops20h 05m

London Heathrow

Mon 3/2

10:20 am-11:31 pm

2 stops20h 11m

$721

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Fri 1/9

11:59 pm-10:00 pm

1 stop15h 01m

London Heathrow

Sun 1/18

9:20 am-9:03 pm

1 stop18h 43m

$734

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Mon 3/16

11:44 pm-9:40 pm

1 stop14h 56m

London Heathrow

Mon 3/23

9:20 am-8:22 pm

1 stop18h 02m

$735

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Wed 4/22

10:15 am-5:40 pm

2 stops23h 25m

London Heathrow

Wed 4/29

7:05 am-9:52 pm

3 stops22h 47m

$736

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Fri 3/20

11:44 pm-10:00 pm

1 stop15h 16m

London Heathrow

Tue 3/24

9:20 am-8:22 pm

1 stop18h 02m

$750

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Sun 1/11

6:15 am-4:25 pm

3 stops27h 10m

London Heathrow

Fri 1/16

10:20 am-11:15 pm

2 stops19h 55m

$750

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Sun 2/1

1:24 pm-9:35 pm

3 stops25h 11m

London Heathrow

Tue 3/31

6:40 am-9:52 pm

3 stops23h 12m

$758

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Fri 3/20

11:44 pm-10:00 pm

1 stop15h 16m

London Heathrow

Tue 4/7

8:15 am-8:38 pm

1 stop20h 23m

$765

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/22

Showing 1-10 of 24 results
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Best time to book a flight from Phoenix to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Phoenix with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to London Heathrow Airport

How far ahead should I book a flight from Phoenix to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Heathrow. Price data was last updated on November 21, 2025.

The price you pay for your flight from Phoenix to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 10 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Phoenix to London Heathrow Airport?

Currently, September is the cheapest month in which you can book a flight from Phoenix to London Heathrow Airport (average of $503). Flying from Phoenix to London Heathrow Airport in June is currently the most expensive (average of $902). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to LHR?

Find hourly flight availability from Phoenix to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 23, 2025.

When flying from Phoenix to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 22% versus a flight in the afternoon.

What is the cheapest day to fly from Phoenix to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix to London Heathrow Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Phoenix to London Heathrow Airport

Explore weekly flight availability from Phoenix to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 23, 2025.

The most flights from PH1 to LHR are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated November 23, 2025.
Read through reviews of airlines operating flights from Phoenix to London Heathrow Airport, such as Finnair, American Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Crew

8.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Crew

8.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
American Airlines
7.2
Good
11,046 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Crew

8.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
JetBlue
7.2
Good
2,902 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Crew

8.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Iberia
7.0
Good
3,032 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Crew

8.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
British Airways
6.7
Okay
7,535 reviews
Finnair
7.6
Good
1,334 reviews

Boarding

7.6

Entertainment

6.9

Food

6.7

Overall

7.6

Crew

8.1

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Phoenix to London Heathrow Airport?

    For as low as $734, Scandinavian Airlines can have you in London Heathrow Airport from Phoenix in 15h 01m. The distance from Phoenix to London Heathrow Airport is about 5255 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Phoenix to London Heathrow Airport round-trip?

    Flying on British Airways is currently your cheapest option to London Heathrow Airport, with prices starting at $516. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and American Airlines, with the lowest prices starting at $533 and $534, respectively. Users have found that British Airways is 44% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Phoenix to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $434 on JetBlue. Other airlines that offer cheap prices include Iberia from $453 and Aer Lingus from $463 one-way.

  • What are the most reliable airlines from Phoenix to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Phoenix, check out the most reliable airlines to get you to your destination on time: American Airlines (63%), Finnair (63%), Iberia( 63%).

  • What are the cheapest flights from Phoenix to London Heathrow Airport?

    While on average a flight from Phoenix to London Heathrow Airport is generally $1,471, our data shows the cheapest flight currently is $319. When looking at the most popular route, (Phoenix Sky Harbor Intl - London Heathrow), you can expect to pay $559 for that flight.

  • Can I find deals for flights from Phoenix to Heathrow that include hotel bookings?

    Yes. In addition to deals on Phoenix to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phoenix to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phoenix to Heathrow.

  • Can I find deals for business class flights from Phoenix to Heathrow?

    Yes. Cheapflights offers flight deals from Phoenix to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix to London Heathrow Airport?

    Currently, September is the cheapest month in which you can book a flight from Phoenix to London Heathrow Airport (average of $503). Flying from Phoenix to London Heathrow Airport in June is currently the most expensive (average of $902). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Phoenix to Heathrow

Discover the top 10 airlines that operate flights from Phoenix to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$516Average$894FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$533Average$687FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$534Average$971FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$537Average$792FlexibilityNo cancel feeOn-time72%
JetBlueCheapest$551Average$889FlexibilityNo cancel feeOn-time62%
FinnairCheapest$565Average$892FlexibilityNo cancel feeOn-time76%
IberiaCheapest$567Average$1,021FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$581Average$822FlexibilityNo cancel feeOn-time69%
WestJetCheapest$595Average$777FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$604Average$896FlexibilityNo cancel feeOn-time67%

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