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Cheap flights from Phoenix Sky Harbor Intl Airport to London from $421

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix Sky Harbor Intl Airport to London departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Phoenix Sky Harbor Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
9:00 am - 12:50 pm
PHX
-
LHR
20h 50m1 stop
WestJet Logo
2:50 pm - 10:10 am
LHR
-
PHX
26h 20m1 stop
$711WestJet
Thu, Mar 5 - Mon, Mar 16
JetBlue Logo
10:19 pm - 6:55 am
PHX
-
LHR
25h 36m1 stop
JetBlue Logo
12:20 pm - 9:46 pm
LHR
-
PHX
16h 26m1 stop
$712JetBlue
Sun, Jan 18 - Sat, Jan 31
Scandinavian Airlines Logo
4:25 pm - 5:40 pm
PHX
-
LHR
18h 15m2 stops
Scandinavian Airlines Logo
10:20 am - 10:29 pm
LHR
-
PHX
19h 09m2 stops
$713Scandinavian Airlines
Tue, Mar 17 - Tue, Mar 24
JetBlue Logo
11:59 pm - 9:40 pm
PHX
-
LHR
14h 41m1 stop
JetBlue Logo
9:20 am - 8:10 pm
LHR
-
PHX
17h 50m1 stop
$714JetBlue
Wed, Mar 4 - Sun, Mar 8
Scandinavian Airlines Logo
5:00 pm - 5:40 pm
PHX
-
LHR
17h 40m2 stops
Scandinavian Airlines Logo
6:40 am - 11:15 pm
LHR
-
PHX
23h 35m2 stops
$715Scandinavian Airlines
Wed, Jan 28 - Tue, Feb 3
WestJet Logo
9:10 pm - 12:50 pm
PHX
-
LHR
32h 40m3 stops
WestJet Logo
2:50 pm - 10:49 pm
LHR
-
PHX
14h 59m1 stop
$718WestJet
Wed, Jan 21 - Thu, Feb 19
Scandinavian Airlines Logo
4:32 pm - 5:40 pm
PHX
-
LHR
18h 08m2 stops
Scandinavian Airlines Logo
6:40 pm - 10:40 pm
LHR
-
PHX
35h 00m2 stops
$719Scandinavian Airlines
Mon, Jan 12 - Fri, Jan 23
Scandinavian Airlines Logo
11:15 pm - 9:35 am
PHX
-
LHR
26h 20m2 stops
Scandinavian Airlines Logo
7:05 am - 10:58 pm
LHR
-
PHX
23h 53m2 stops
$721Scandinavian Airlines
Fri, May 8 - Fri, May 15
WestJet Logo
12:05 pm - 12:50 pm
PHX
-
LHR
17h 45m2 stops
WestJet Logo
2:50 pm - 10:49 pm
LHR
-
PHX
14h 59m1 stop
$723WestJet
Sun, Jan 25 - Mon, Feb 2
JetBlue Logo
11:59 pm - 10:00 pm
PHX
-
LHR
15h 01m1 stop
JetBlue Logo
12:20 pm - 9:47 pm
LHR
-
PHX
16h 27m1 stop
$724JetBlue
Fri, Feb 20 - Tue, Feb 24

WestJet flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport

Our best WestJet deals on Phoenix Sky Harbor Intl Airport to London Heathrow Airport flight tickets
WestJet
Mar 5
PHX9:00 amPhoenix Sky Harbor Intl
20h 50m
1 stop
LHR12:50 pmLondon Heathrow
Mar 16
LHR2:50 pmLondon Heathrow
26h 20m
1 stop
PHX10:10 amPhoenix Sky Harbor Intl
$711
Find similar
WestJet
Jan 21
PHX9:10 pmPhoenix Sky Harbor Intl
32h 40m
3 stops
LHR12:50 pmLondon Heathrow
Feb 19
LHR2:50 pmLondon Heathrow
14h 59m
1 stop
PHX10:49 pmPhoenix Sky Harbor Intl
$718
Find similar
WestJet
Jan 25
PHX12:05 pmPhoenix Sky Harbor Intl
17h 45m
2 stops
LHR12:50 pmLondon Heathrow
Feb 2
LHR2:50 pmLondon Heathrow
14h 59m
1 stop
PHX10:49 pmPhoenix Sky Harbor Intl
$723
Find similar

JetBlue flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport

Our best JetBlue deals on Phoenix Sky Harbor Intl Airport to London Heathrow Airport flight tickets
JetBlue
Jan 18
PHX10:19 pmPhoenix Sky Harbor Intl
25h 36m
1 stop
LHR6:55 amLondon Heathrow
Jan 31
LHR12:20 pmLondon Heathrow
16h 26m
1 stop
PHX9:46 pmPhoenix Sky Harbor Intl
$712
Find similar
JetBlue
Feb 20
PHX11:59 pmPhoenix Sky Harbor Intl
15h 01m
1 stop
LHR10:00 pmLondon Heathrow
Feb 24
LHR12:20 pmLondon Heathrow
16h 27m
1 stop
PHX9:47 pmPhoenix Sky Harbor Intl
$724
Find similar
JetBlue
Jan 14
PHX11:59 pmPhoenix Sky Harbor Intl
14h 41m
1 stop
LHR9:40 pmLondon Heathrow
May 2
LHR8:25 amLondon Heathrow
20h 30m
1 stop
PHX8:55 pmPhoenix Sky Harbor Intl
$725
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Thu 3/5

9:00 am-12:50 pm

1 stop20h 50m

London Heathrow

Mon 3/16

2:50 pm-10:10 am

1 stop26h 20m

$711

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Sun 1/18

10:19 pm-6:55 am

1 stop25h 36m

London Heathrow

Sat 1/31

12:20 pm-9:46 pm

1 stop16h 26m

$712

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Tue 3/17

4:25 pm-5:40 pm

2 stops18h 15m

London Heathrow

Tue 3/24

10:20 am-10:29 pm

2 stops19h 09m

$713

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Wed 3/4

11:59 pm-9:40 pm

1 stop14h 41m

London Heathrow

Sun 3/8

9:20 am-8:10 pm

1 stop17h 50m

$714

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Wed 1/28

5:00 pm-5:40 pm

2 stops17h 40m

London Heathrow

Tue 2/3

6:40 am-11:15 pm

2 stops23h 35m

$715

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Wed 1/21

9:10 pm-12:50 pm

3 stops32h 40m

London Heathrow

Thu 2/19

2:50 pm-10:49 pm

1 stop14h 59m

$718

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Mon 1/12

4:32 pm-5:40 pm

2 stops18h 08m

London Heathrow

Fri 1/23

6:40 pm-10:40 pm

2 stops35h 00m

$719

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Fri 5/8

11:15 pm-9:35 am

2 stops26h 20m

London Heathrow

Fri 5/15

7:05 am-10:58 pm

2 stops23h 53m

$721

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Sun 1/25

12:05 pm-12:50 pm

2 stops17h 45m

London Heathrow

Mon 2/2

2:50 pm-10:49 pm

1 stop14h 59m

$723

PhoenixLondon

PHX - LHR

PHXLHR

Phoenix Sky Harbor Intl

Fri 2/20

11:59 pm-10:00 pm

1 stop15h 01m

London Heathrow

Tue 2/24

12:20 pm-9:47 pm

1 stop16h 27m

$724

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Phoenix Sky Harbor Intl Airport and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from Phoenix Sky Harbor Intl Airport, with most prices found around $690. If you’re not able to fly to London Heathrow Airport in October, then November is your next best option. Flight prices from Phoenix Sky Harbor Intl Airport to London Heathrow Airport during November average around $762.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $880. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,110.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Phoenix Sky Harbor Intl Airport to London Heathrow Airport in the morning for as low as $871. 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 $1,028.

What is the cheapest Phoenix Sky Harbor Intl to London Heathrow flight route?

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

How far in advance should I book a flight to London Heathrow Airport?

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 $919 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 $821 on momondo.

What cabin class options are available on Phoenix Sky Harbor Intl to London Heathrow flights?

There are 4 cabin classes available to choose from on Phoenix Sky Harbor Intl to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Phoenix Sky Harbor Intl Airport to London Heathrow Airport flights?

You could potentially save up to 1% on your flight if you consider stops on a Phoenix Sky Harbor Intl Airport to London Heathrow Airport flight.

How have Phoenix Sky Harbor Intl Airport to London Heathrow Airport flight prices changed over time?

As of December 2025, prices for Phoenix Sky Harbor Intl Airport to London Heathrow Airport flights are approximately 30% cheaper when compared to flights at the same time last year.

When to book flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Phoenix Sky Harbor Intl Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Phoenix Sky Harbor Intl Airport to London Heathrow Airport (PHX to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phoenix Sky Harbor Intl Airport to London Heathrow Airport

Best Price Found

$394

Fastest flight time

9h 50m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Phoenix Sky Harbor Intl Airport in the past 72 hours is $394. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is $704.
The fastest flight from Phoenix Sky Harbor Intl Airport to London Heathrow Airport takes 9h 50m
Direct flights go from Phoenix Sky Harbor Intl Airport to London Heathrow Airport every day.
Search flight deals

  • How far is Phoenix Sky Harbor Intl to London Heathrow by plane?

    There are 5254.6 mi between Phoenix Sky Harbor Intl and London Heathrow. 9h 50m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport?

    Prices for flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport?

  • How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to London Heathrow Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phoenix Sky Harbor Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Phoenix Sky Harbor Intl Airport to London Heathrow Airport?

  • What is the most popular airline from Phoenix Sky Harbor Intl Airport to London Heathrow Airport?

Best airlines flying from Phoenix Sky Harbor Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $515Free CancellationRating
6.7
7,586 reviews
Search British Airways flights
American AirlinesPriceFrom $532Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $533Free CancellationRating
7.4
1,608 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom $537Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
JetBluePriceFrom $551Free CancellationRating
7.2
2,895 reviews
Search JetBlue flights
FinnairPriceFrom $565Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
IberiaPriceFrom $565Free CancellationRating
7.0
3,053 reviews
Search Iberia flights
DeltaPriceFrom $580Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $581Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
WestJetPriceFrom $598Free CancellationRating
7.2
3,204 reviews
Search WestJet flights

  • Finnair Flights From Phoenix Sky Harbor Intl Airport to London Heathrow Airport

    Finnair operates around 7 flights from Phoenix Sky Harbor Intl Airport to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been $900, but momondo users have found Finnair deals from Phoenix Sky Harbor Intl Airport to London Heathrow Airport from as low as $565 round-trip. Finnair has been scored 7.6/10 in 1,338 reviews.

  • American Airlines Flights From Phoenix Sky Harbor Intl Airport to London Heathrow Airport

    Across 11,054 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Phoenix Sky Harbor Intl Airport to London Heathrow Airport about 7 times each week, with ticket deals ranging from $532 to $946. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
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Why use momondo?

Why should I use momondo to find a flight deal from Phoenix to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Phoenix to London for you.

Can I find flights from Phoenix to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Phoenix which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Phoenix to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Phoenix to London.

I’m not ready to book a flight from Phoenix to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Phoenix to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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