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

Flights from Portland to London usually depart from Portland (PWM) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

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

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

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

One-stop flights from Portland to London most commonly connect through: • Newark (EWR) - 41% of one-stop connections • New York John F Kennedy Intl (JFK) - 27% of one-stop connections • Philadelphia (PHL) - 27% of one-stop connections • Atlanta Hartsfield-Jackson (ATL) - 2% of one-stop connections

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

Yes. Flexible dates can save you up to 48% on flights from Portland to London. Sunday is the cheapest departure day at $795 round-trip on average, while Friday is the most expensive at $1,528, a difference of $733. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in London?

Some of the most popular sights in London are Hyde Park and Buckingham Palace. These are among the most viewed places in London on KAYAK.

How long is a flight from Portland to London?

A nonstop flight from Portland to London takes 00m, covering 3,186 miles.

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

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.

Have flight prices from Portland to London changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $763 to $3,495. That means the highest observed fare was about 5x higher than the lowest one.

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

One-way fares from Portland to London are currently lower than usual. Average one-way flight prices are about $343, which is 30% below the typical average for this route.

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

Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 10h 52m, compared with 11h 15m via Philadelphia (PHL) and 12h 26m via Chicago O'Hare Intl (ORD).

What is the time difference between Portland and London?

London 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 in London?

Since London is served by multiple airports, car rental options and rates can vary depending on which one you fly into. Near London Heathrow Airport (LHR) — daily rates averaging $38: • GREEN MOTION • DRIVALIA • Europcar • Alamo • Rentacar Near London Gatwick Airport (LGW) — daily rates averaging $39: • GREEN MOTION • DRIVALIA • U-Save • Europcar • Alamo Near London Stansted Airport (STN) — daily rates averaging $35: • GREEN MOTION • DRIVALIA • Europcar • Alamo • U-Save Near London Luton Airport (LTN) — daily rates averaging $38: • GREEN MOTION • DRIVALIA • Alamo • Europcar • U-Save

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

Round-trip flights from Portland to London range from $752 to $1,090, with an average of $895 over the past 12 months. Anything below $752 counts as a good deal.

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

Round-trip flights from Portland to London typically range from $752 to $1,090. The lowest price found in the past 5 days was $763, on United Airlines.

What is the cheapest Portland to London flight route?

There's little price difference between Portland to London routes. They average around $895 round-trip, based on KAYAK data over the past 12 months.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Portland to London. It’s 12% cheaper than the average day, while Friday is the most expensive, with prices 70% higher.

Which airline is the cheapest to fly from Portland to London?

United Airlines ($763) and Delta ($877) are the cheapest airlines to fly round-trip from Portland to London according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from Portland to London?

Newark (EWR) is the most popular layover for the Portland to London route. 41% 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?

Flights via Atlanta Hartsfield-Jackson (ATL) offer the most affordable fares, with an average round-trip price of $864. Based on KAYAK data over the past 3 months.

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

Newark (EWR) had the shortest average connection time for Portland to London layovers at 5h 57m over the past 3 months.

$330 CHEAP FLIGHTS from Portland to London (PWM - LON)

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Never overpay with our price tracking tools.

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

Cheapest round-trip

$763

Typical prices: $752-$1,090

United Airlines

Fri 2/23Sun 2/25

PWM - LHR • 1 stop

Cheapest one-way

$330

Typical prices: $330-$597

United Airlines

Sat 3/31

PWM - LHR • 1 stop

Nonstop flights

Not available

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

Insights

When to travel

August

Cheapest • 16% price drop

May

Most popular

Good to know

Top layover airports

Atlanta Hartsfield-Jackson (ATL)

Cheapest • Avg $864 (round-trip)

Newark (EWR)

Shortest trip • 10h 52m (one-way)

Insights

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to London!

Flight Deals

Cheap Flights from Portland to London (PWM-LON)

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, Feb 23 - Thu, Feb 25

3:14 pm - 10:25 amPWM Portland-LHR London Heathrow

14h 11m1 stop Newark

6:50 am - 11:25 pmLHR London Heathrow-PWM Portland

21h 35m2 stops Brussels Bruxelles-National Newark

$763United Airlines

Tue, Feb 23 - Thu, Feb 25

3:13 pm - 10:25 amPWM Portland-LHR London Heathrow

14h 12m1 stop Newark

6:50 am - 11:25 pmLHR London Heathrow-PWM Portland

21h 35m2 stops Brussels Bruxelles-National Newark

$763United Airlines

Tue, Feb 23 - Thu, Feb 25

3:14 pm - 11:15 amPWM Portland-LHR London Heathrow

15h 01m2 stops Newark Zurich

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

17h 00m2 stops Brussels Bruxelles-National Newark

$819United Airlines

Tue, Feb 23 - Thu, Feb 25

3:13 pm - 11:15 amPWM Portland-LHR London Heathrow

15h 02m2 stops Newark Zurich

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

17h 00m2 stops Brussels Bruxelles-National Newark

$819United Airlines

Sat, Dec 5 - Sat, Dec 12

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

19h 20m1 stop Newark

12:05 pm - 11:24 pmLHR London Heathrow-PWM Portland

16h 19m2 stops Zurich Newark

$876United Airlines

Sat, Dec 5 - Sat, Dec 12

9:12 am - 6:30 amPWM Portland-LHR London Heathrow

16h 18m2 stops Newark Ottawa

12:05 pm - 11:24 pmLHR London Heathrow-PWM Portland

16h 19m2 stops Zurich Newark

$876United Airlines

Fri, Dec 4 - Fri, Dec 11

4:00 pm - 7:15 amPWM Portland-LHR London Heathrow

10h 15m1 stop New York John F Kennedy Intl

10:00 am - 11:52 pmLHR London Heathrow-PWM Portland

18h 52m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$877Delta

Sun, Dec 6 - Sun, Dec 13

4:00 pm - 8:05 amPWM Portland-LHR London Heathrow

11h 05m1 stop New York John F Kennedy Intl

8:40 am - 12:21 amLHR London Heathrow-PWM Portland

20h 41m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$877Delta

Sun, Dec 6 - Sun, Dec 13

4:00 pm - 10:30 amPWM Portland-LHR London Heathrow

13h 30m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

8:40 am - 12:21 amLHR London Heathrow-PWM Portland

20h 41m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$881Delta

Fri, Dec 4 - Fri, Dec 11

12:49 pm - 10:30 amPWM Portland-LHR London Heathrow

16h 41m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

8:40 am - 12:21 amLHR London Heathrow-PWM Portland

20h 41m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$882Delta

Recent last minute flight deals from Portland to London

Thu, Nov 12 - Wed, Nov 18

6:30 am - 9:40 pmPWM Portland-LHR London Heathrow

10h 10m1 stop New York John F Kennedy Intl

12:20 pm - 11:43 pmLHR London Heathrow-PWM Portland

16h 23m1 stop New York John F Kennedy Intl

$845JetBlue

Thu, Nov 12 - Wed, Nov 18

5:50 am - 8:35 pmPWM Portland-LHR London Heathrow

9h 45m1 stop Newark

9:00 am - 11:21 pmLHR London Heathrow-PWM Portland

19h 21m2 stops Zurich Newark

$875United Airlines

Thu, Nov 12 - Wed, Nov 18

8:49 am - 9:00 pmPWM Portland-LHR London Heathrow

31h 11m2 stops Newark Halifax Intl

1:00 pm - 11:21 pmLHR London Heathrow-PWM Portland

39h 21m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$886Air Canada

Tue, Nov 10 - Thu, Nov 12

9:46 am - 7:10 amPWM Portland-LHR London Heathrow

16h 24m2 stops Washington, D.C. Dulles Intl Montreal Pierre Elliott Trudeau Intl

6:00 am - 11:21 pmLHR London Heathrow-PWM Portland

22h 21m3 stops Zurich Toronto Pearson Intl Newark

$911Multiple Airlines

Tue, Nov 10 - Thu, Nov 12

6:30 am - 9:40 pmPWM Portland-LHR London Heathrow

10h 10m1 stop New York John F Kennedy Intl

7:25 am - 11:43 pmLHR London Heathrow-PWM Portland

21h 18m1 stop New York John F Kennedy Intl

$913JetBlue

Tue, Nov 10 - Thu, Nov 12

8:49 am - 6:30 amPWM Portland-LHR London Heathrow

16h 41m3 stops Newark Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

6:00 am - 11:21 pmLHR London Heathrow-PWM Portland

22h 21m3 stops Zurich Toronto Pearson Intl Newark

$919Air Canada

Tue, Nov 10 - Thu, Nov 12

2:05 pm - 11:40 amPWM Portland-LHR London Heathrow

16h 35m1 stop Atlanta Hartsfield-Jackson

11:30 am - 12:19 amLHR London Heathrow-PWM Portland

17h 49m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$1,016Multiple Airlines

Tue, Nov 10 - Thu, Nov 12

12:45 pm - 10:30 amPWM Portland-LHR London Heathrow

16h 45m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

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

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

$1,034Delta

Thu, Nov 12 - Wed, Nov 18

9:46 am - 6:30 amPWM Portland-LHR London Heathrow

15h 44m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

6:00 pm - 1:26 pmLHR London Heathrow-PWM Portland

24h 26m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Newark

$1,159Multiple Airlines

Booking Insights

Price, demand and travel trends for Portland to London flights

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

Prices

Airlines

Layovers

How much is a round-trip flight from Portland to London? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to London departing in february.
What is the cheapest Portland to London flight route? KAYAK tracks online flight deals over the last 12 months and analyzes pricing trends to identify the best available fares.: There's little price difference between Portland to London routes. They average around $895 round-trip, based on KAYAK data over the past 12 months.
What's the cheapest day of the week to fly from Portland to London?: Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Portland to London. It’s 12% cheaper than the average day, while Friday is the most expensive, with prices 70% higher.

Find deals

Low season	February
High season	May
Cheapest flight	$330

Beat the crowds with an average 72% drop in travelers.

The most popular month to fly with an average 59% increase in travelers.

One-way 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.

What cabin classes can I book on flights from Portland to London?
Two cabin classes are available on flights from Portland to London:

• Economy Class
• First Class
How long is a flight from Portland to London?
A nonstop flight from Portland to London takes 00m, covering 3,186 miles.
Do I need a passport to fly from Portland to London?
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 much should I expect to pay for a Portland to London flight?
Round-trip flights from Portland to London range from $752 to $1,090, with an average of $895 over the past 12 months. Anything below $752 counts as a good deal.
Have flight prices from Portland to London changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $763 to $3,495. That means the highest observed fare was about 5x higher than the lowest one.
How are flight prices from Portland to London looking right now?
One-way fares from Portland to London are currently lower than usual. Average one-way flight prices are about $343, which is 30% below the typical average for this route.
What car rental options are available in London?
Since London is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) — daily rates averaging $38:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Rentacar

Near London Gatwick Airport (LGW) — daily rates averaging $39:

• GREEN MOTION
• DRIVALIA
• U-Save
• Europcar
• Alamo

Near London Stansted Airport (STN) — daily rates averaging $35:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• U-Save

Near London Luton Airport (LTN) — daily rates averaging $38:

• GREEN MOTION
• DRIVALIA
• Alamo
• Europcar
• U-Save
Which airports can I use when flying from Portland to London?
Flights from Portland to London usually depart from Portland (PWM) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).
Which airports do connecting flights from Portland to London pass through?
One-stop flights from Portland to London most commonly connect through:

• Newark (EWR) - 41% of one-stop connections
• New York John F Kennedy Intl (JFK) - 27% of one-stop connections
• Philadelphia (PHL) - 27% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 2% of one-stop connections
Can I save money by using flexible dates for flights from Portland to London?
Yes. Flexible dates can save you up to 48% on flights from Portland to London. Sunday is the cheapest departure day at $795 round-trip on average, while Friday is the most expensive at $1,528, a difference of $733.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
How much time can I save by choosing a different layover airport from Portland to London?
Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 10h 52m, compared with 11h 15m via Philadelphia (PHL) and 12h 26m via Chicago O'Hare Intl (ORD).
What is the time difference between Portland and London?
London is 5 hours ahead of Portland (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in London?
Some of the most popular sights in London are Hyde Park and Buckingham Palace. These are among the most viewed places in London on KAYAK.

If your dates are flexible, aim for a Sunday departure and avoid flying on Friday. On this route, Sunday flights average $795, about $733 less than Friday fares (48% savings) based on the last 12 months.
If you can choose when to travel, plan your Portland to London trip for August. Fares historically average $748 round-trip in that month - typically $1,075 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

Near London City Airport

• Good Hotel London
• Novotel London Excel
• Aloft London Excel

Near London Heathrow Airport

• Hilton London Heathrow Airport

Near London Gatwick Airport

• Premier Inn London Gatwick Airport

More options for your flight from Portland to London

Add a hotel or car rental

Airports

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Origins

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

Car rentals in London

Hotels in London

Vacations in London

PWM - LON

$330 Find Cheap Flights from Portland to London - Compare and Save

Everything you should know

Cheap Flights from Portland to London (PWM-LON)

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 flights

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

What is the cheapest Portland to London flight route?

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

Which airline is the cheapest to fly from Portland to London?

What’s the most popular layover airport when flying from Portland to London?

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

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

Key details for Portland to London flights

Low season

High season

Cheapest flight

When to book flights from Portland to London

Your Portland to London flight questions, answered

Your guide to booking Portland to London 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 from Portland to London

Find direct flights to and from Portland and London

Flights from domestic origins to London

Choose which airport to fly into in London

Flights to other popular destinations