Which airports can I use when flying from Portland to London Heathrow Airport?

Flights from Portland to London Heathrow Airport usually depart from Portland (PWM) and arrive at London Heathrow (LHR).

What cabin classes can I book on flights from Portland to London Heathrow Airport?

Two cabin classes are available on flights from Portland to London Heathrow Airport: • Economy Class • First Class

Which airports do connecting flights from Portland to London Heathrow Airport pass through?

One-stop flights from Portland to London Heathrow Airport most commonly connect through: • Newark (EWR) - 49% of one-stop connections • Philadelphia (PHL) - 23% of one-stop connections • New York John F Kennedy Intl (JFK) - 21% of one-stop connections • Atlanta Hartsfield-Jackson (ATL) - 4% of one-stop connections Newark (EWR) handles the largest share of one-stop connections on this route.

Can I save money by using flexible dates for flights from Portland to London Heathrow Airport?

On the Portland to London Heathrow Airport route, being flexible with your departure day can save you up to 33%. Sunday is the cheapest day at $796 round-trip on average, while Friday is the most expensive at $1,171: a $375 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in London Heathrow Airport?

Some of the most popular sights in London Heathrow Airport are Paddington Station, Central London and London Victoria Station. These are among the most viewed places in London Heathrow Airport on KAYAK.

How long is a flight from Portland to London Heathrow Airport?

A nonstop flight from Portland to London Heathrow Airport takes 0h 00m, covering 3,173 miles.

Do I need a passport to fly from Portland to London Heathrow Airport?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

How are flight prices from Portland to London Heathrow Airport looking right now?

One-way fares from Portland to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $441, which is 10% below the typical average for this route.

How much time can I save by choosing a different layover airport from Portland to London Heathrow Airport?

Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 11h 00m, compared with 11h 19m via Philadelphia (PHL) and 12h 26m via Chicago O'Hare Intl (ORD).

What is the time difference between Portland and London Heathrow Airport?

London Heathrow Airport is 5 hours ahead of Portland (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at London Heathrow Airport (LHR)?

London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include: • GREEN MOTION • DRIVALIA • Europcar • Alamo • Hertz

How much should I expect to pay for a Portland to London Heathrow Airport flight?

Round-trip flights from Portland to London Heathrow Airport range from $746 to $1,110, with an average of $867 over the past 12 months. Anything below $746 counts as a good deal.

What is the cheapest airline to fly from Portland to London Heathrow Airport?

Delta ($739) and United Airlines ($745) are the cheapest airlines to fly round-trip from Portland to London Heathrow Airport according to KAYAK data over the last 5 days.

What is the most popular layover airport when flying from Portland to London Heathrow Airport?

Newark (EWR) is the most popular layover for the Portland to London Heathrow Airport route. 49% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via EWR.

What is the cheapest layover airport when flying from Portland to London Heathrow Airport?

Flights via Newark (EWR) offer the most affordable fares, with an average round-trip price of $952. Based on KAYAK data over the past 3 months.

When flying from Portland to London Heathrow Airport which airport offers the shortest layover?

Newark (EWR) had the shortest average connection time for Portland to London Heathrow Airport layovers at 365 minutes over the past 3 months.

$320 CHEAP FLIGHTS from Portland to London Heathrow (PWM - LHR)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$739

Typical prices: $746-$1,110

Delta

Sat 11/10Sat 11/24

PWM - LHR • 1 stop

Cheapest one-way

$320

Typical prices: $359-$597

JetBlue

Sun 10/14

PWM - LHR • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Portland and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

December

Cheapest • 19% price drop

May

Most popular

Good to know

Top layover airports

Newark (EWR)

Cheapest • Avg $952 (round-trip)

Philadelphia (PHL)

Shortest trip • 11h 19m (one-way)

Insights

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We hope you love your trip to London Heathrow Airport!

Flight Deals

Cheap Flights from Portland to London (PWM-LHR)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Portland to London

Tue, Nov 10 - Tue, Nov 17

12:45 pm - 6:50 amPWM Portland-LHR London Heathrow

13h 05m1 stop Detroit Metropolitan Wayne County

6:30 am - 12:19 amLHR London Heathrow-PWM Portland

22h 49m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$739Delta

Mon, Oct 5 - Tue, Oct 20

4:20 pm - 8:50 amPWM Portland-LHR London Heathrow

11h 30m1 stop New York John F Kennedy Intl

11:45 am - 12:10 amLHR London Heathrow-PWM Portland

17h 25m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$739Delta

Tue, Nov 10 - Tue, Nov 17

6:00 am - 6:25 amPWM Portland-LHR London Heathrow

19h 25m1 stop Atlanta Hartsfield-Jackson

6:20 am - 11:31 pmLHR London Heathrow-PWM Portland

22h 11m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$739Delta

Tue, Nov 10 - Tue, Nov 17

6:00 am - 6:20 amPWM Portland-LHR London Heathrow

19h 20m1 stop New York John F Kennedy Intl

8:55 am - 12:19 amLHR London Heathrow-PWM Portland

20h 24m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$739Delta

Tue, Nov 10 - Tue, Nov 24

2:05 pm - 9:00 amPWM Portland-LHR London Heathrow

13h 55m1 stop Atlanta Hartsfield-Jackson

8:55 am - 12:19 amLHR London Heathrow-PWM Portland

20h 24m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$739Delta

Wed, Oct 7 - Wed, Oct 14

6:04 am - 6:20 amPWM Portland-LHR London Heathrow

19h 16m1 stop New York John F Kennedy Intl

11:30 am - 12:10 amLHR London Heathrow-PWM Portland

17h 40m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$739Delta

Tue, Nov 24 - Thu, Dec 3

4:03 pm - 8:35 amPWM Portland-LHR London Heathrow

11h 32m1 stop New York John F Kennedy Intl

8:55 am - 12:21 amLHR London Heathrow-PWM Portland

20h 26m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$739Delta

Wed, Nov 4 - Thu, Nov 12

4:15 pm - 10:30 amPWM Portland-LHR London Heathrow

13h 15m1 stop New York John F Kennedy Intl

11:45 am - 12:19 amLHR London Heathrow-PWM Portland

17h 34m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$740Multiple Airlines

Mon, Nov 16 - Wed, Nov 18

8:49 am - 9:10 amPWM Portland-LHR London Heathrow

19h 21m1 stop Newark

6:50 am - 11:21 pmLHR London Heathrow-PWM Portland

21h 31m2 stops Brussels Bruxelles-National Newark

$745United Airlines

Wed, Nov 4 - Tue, Nov 10

4:15 pm - 8:05 amPWM Portland-LHR London Heathrow

10h 50m1 stop New York John F Kennedy Intl

4:35 pm - 12:19 amLHR London Heathrow-PWM Portland

12h 44m1 stop New York John F Kennedy Intl

$746KLM

Recent last minute flight deals from Portland to London

Tue, Sep 15 - Thu, Sep 17

2:38 pm - 6:55 amPWM Portland-LHR London Heathrow

11h 17m1 stop Washington, D.C. Dulles Intl

6:50 am - 7:24 pmLHR London Heathrow-PWM Portland

17h 34m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

$1,000United Airlines

Tue, Sep 15 - Thu, Sep 17

6:00 am - 8:45 pmPWM Portland-LHR London Heathrow

9h 45m1 stop New York John F Kennedy Intl

8:15 am - 11:54 pmLHR London Heathrow-PWM Portland

20h 39m1 stop New York John F Kennedy Intl

$1,004JetBlue

Tue, Sep 15 - Thu, Sep 17

3:43 pm - 10:40 amPWM Portland-LHR London Heathrow

13h 57m2 stops Newark Washington, D.C. Dulles Intl

6:50 am - 6:29 pmLHR London Heathrow-PWM Portland

16h 39m2 stops Brussels Bruxelles-National Newark

$1,005United Airlines

Thu, Sep 17 - Sat, Sep 19

6:00 am - 9:30 amPWM Portland-LHR London Heathrow

22h 30m1 stop New York John F Kennedy Intl

8:15 am - 11:54 pmLHR London Heathrow-PWM Portland

20h 39m1 stop New York John F Kennedy Intl

$1,043JetBlue

Thu, Sep 17 - Sat, Sep 19

2:38 pm - 6:55 amPWM Portland-LHR London Heathrow

11h 17m1 stop Washington, D.C. Dulles Intl

6:50 am - 11:59 pmLHR London Heathrow-PWM Portland

22h 09m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

$1,100United Airlines

Thu, Sep 17 - Sat, Sep 19

6:06 am - 6:55 amPWM Portland-LHR London Heathrow

19h 49m2 stops Newark Washington, D.C. Dulles Intl

6:50 am - 11:32 pmLHR London Heathrow-PWM Portland

21h 42m2 stops Brussels Bruxelles-National Newark

$1,105United Airlines

Thu, Sep 17 - Sat, Sep 19

9:10 am - 6:30 amPWM Portland-LHR London Heathrow

16h 20m3 stops Newark Toronto Pearson Intl Ottawa

2:10 pm - 11:59 pmLHR London Heathrow-PWM Portland

14h 49m2 stops Ottawa Washington, D.C. Dulles Intl

$1,268Multiple Airlines

Thu, Sep 17 - Sat, Sep 19

9:10 am - 6:30 amPWM Portland-LHR London Heathrow

16h 20m3 stops Newark Toronto Pearson Intl Ottawa

8:30 am - 11:32 pmLHR London Heathrow-PWM Portland

20h 02m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Newark

$1,280Air Canada

Tue, Sep 15 - Thu, Sep 17

3:43 pm - 11:50 amPWM Portland-LHR London Heathrow

15h 07m2 stops Newark Toronto Pearson Intl

8:30 am - 11:32 pmLHR London Heathrow-PWM Portland

20h 02m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Newark

$2,208Multiple Airlines

Tue, Sep 15 - Thu, Sep 17

9:10 am - 6:30 amPWM Portland-LHR London Heathrow

16h 20m3 stops Newark Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl

8:30 am - 11:32 pmLHR London Heathrow-PWM Portland

20h 02m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Newark

$2,211Air Canada

Booking Insights

Price, demand and travel trends for Portland to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Portland to London Heathrow Airport with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Portland to London Heathrow Airport?

Round-trip flights from Portland to London Heathrow Airport start at $739. Prices are below average for this route right now, with typical round-trip fares ranging from $746 to $1,110. The lowest price found in the past 5 days was $739 on Delta.

What's the cheapest day of the week to fly from Portland to London Heathrow Airport?

Sunday is the cheapest day of the week to fly from Portland to London Heathrow Airport, it is 9% cheaper than the average day. Friday is the most expensive day with flight prices 35% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Low season	February
High season	May
Cheapest flight	$320

Best time to beat the crowds with an average 13% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from Portland to London Heathrow Airport

When to book flights from Portland to London

Are your dates flexible? Find out the best times to travel from Portland to London based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Portland to London Heathrow Airport?
Flights from Portland to London Heathrow Airport usually depart from Portland (PWM) and arrive at London Heathrow (LHR).
What cabin classes can I book on flights from Portland to London Heathrow Airport?
Two cabin classes are available on flights from Portland to London Heathrow Airport:

• Economy Class
• First Class
Which airports do connecting flights from Portland to London Heathrow Airport pass through?
One-stop flights from Portland to London Heathrow Airport most commonly connect through:

• Newark (EWR) - 49% of one-stop connections
• Philadelphia (PHL) - 23% of one-stop connections
• New York John F Kennedy Intl (JFK) - 21% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 4% of one-stop connections

Newark (EWR) handles the largest share of one-stop connections on this route.
Can I save money by using flexible dates for flights from Portland to London Heathrow Airport?
On the Portland to London Heathrow Airport route, being flexible with your departure day can save you up to 33%. Sunday is the cheapest day at $796 round-trip on average, while Friday is the most expensive at $1,171: a $375 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What popular places can I visit in London Heathrow Airport?
Some of the most popular sights in London Heathrow Airport are Paddington Station, Central London and London Victoria Station. These are among the most viewed places in London Heathrow Airport on KAYAK.
How long is a flight from Portland to London Heathrow Airport?
A nonstop flight from Portland to London Heathrow Airport takes 0h 00m, covering 3,173 miles.
Do I need a passport to fly from Portland to London Heathrow Airport?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How are flight prices from Portland to London Heathrow Airport looking right now?
One-way fares from Portland to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $441, which is 10% below the typical average for this route.
How much time can I save by choosing a different layover airport from Portland to London Heathrow Airport?
Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 11h 00m, compared with 11h 19m via Philadelphia (PHL) and 12h 26m via Chicago O'Hare Intl (ORD).
What is the time difference between Portland and London Heathrow Airport?
London Heathrow Airport is 5 hours ahead of Portland (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at London Heathrow Airport (LHR)?
London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:
• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz
How much should I expect to pay for a Portland to London Heathrow Airport flight?
Round-trip flights from Portland to London Heathrow Airport range from $746 to $1,110, with an average of $867 over the past 12 months. Anything below $746 counts as a good deal.

If your dates can be flexible, aim for a Sunday departure instead of Friday. On this route, Sunday flights average $796 - about $375 less than Friday (32% savings) based on the last 12 months.
If you can choose when to travel, plan your Portland to London Heathrow Airport trip for December. Fares historically average $700 round-trip in that month - typically $595 less than the most expensive month, which is July (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.
- Hilton London Heathrow Airport

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PWM - LHR

$320 Find Cheap Flights from Portland to London Heathrow Airport - Compare and Save

Everything you should know

Cheap Flights from Portland to London (PWM-LHR)

Recent round-trip flight deals from Portland to London

Recent one-way flight deals from Portland to London

Recent last minute flight deals from Portland to London

Price, demand and travel trends for Portland to London Heathrow Airport flights

How much is a round-trip flight from Portland to London Heathrow Airport?

What's the cheapest day of the week to fly from Portland to London Heathrow Airport?

What is the cheapest airline to fly from Portland to London Heathrow Airport?

What is the most popular layover airport when flying from Portland to London Heathrow Airport?

What is the cheapest layover airport when flying from Portland to London Heathrow Airport?

When flying from Portland to London Heathrow Airport which airport offers the shortest layover?

Key details for Portland to London Heathrow Airport flights

Low season

High season

Cheapest flight

When to book flights from Portland to London

Your Portland to London Heathrow Airport flight questions, answered

Your guide to booking Portland to London Heathrow Airport flights

More options for your flight from Portland to London

Complete your trip to London with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights to London

Find direct flights to and from Portland and London

Flights from domestic origins to London

Choose which airport to fly into in Portland

Flights to other popular destinations

Find deals for your return flight