Cheap flights from Portland (PWM) to London (LON)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Portland (PWM) to London (LON)

All the information you need to plan the best PWM to LON flight in 2021: compare Portland to London flight prices with the expected peak season, weather and rainfall in London.
PWM - LON
Price
$818 - $1,610
LON
Temperature
48.2 - 73.4 °F
LON
Rainfall
1.4 - 2.8 inches

Popular in

May

High demand for flights, 33% potential price rise

Cheapest in

February

Best time to find cheap flights, 24% potential price drop

Round-trip from

$818

From Portland to London

One-way from

$579

One-way flight from Portland to London

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Portland to London?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 47% on the overall cost on flights from Portland to London.

How far in advance should I book a flight from Portland to London?

To save up to 44% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portland to London from $910 1-2 weeks out and tickets from $1,146 for flights departing within the next 72 hours.

What is the cheapest month to fly from Portland to London?

October is one of the best times of the year to fly to London from Portland. Prices for October average $714 per person but you can even find prices for as low as $445. The most expensive prices can be found in the month of July. Opting for a October flight can save you 31% on your journey compared to booking in October

When is the cheapest time to fly from Portland to London (PWM - LON)?

When flying from Portland to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 15% versus a flight in the morning.

Cheap flights from Portland to London in June, July 2021

The best prices found for PWM to LON flights for June, July
24 Jul - 31 Jul
$1,116pp
PWM
Portland
American Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
American Airlines
   
2 STOPS
PWM
Portland
24 Jul - 31 Jul
$1,125pp
PWM
Portland
American Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
American Airlines
   
2 STOPS
PWM
Portland
24 Jul - 31 Jul
$1,223pp
PWM
Portland
American Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
American Airlines
 
1 STOP
PWM
Portland

Portland to London 2021 flight deals

Cheap flights to London from Portland found for this year
28 Dec - 11 Jan
$653pp
PWM
Portland
United Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
United Airlines
   
2 STOPS
PWM
Portland
28 Dec - 11 Jan
$672pp
PWM
Portland
American Airlines
   
2 STOPS
LGW
London Gatwick
LGW
London Gatwick
American Airlines
   
2 STOPS
PWM
Portland
28 Dec - 11 Jan
$672pp
PWM
Portland
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
 
1 STOP
PWM
Portland

One-way flights to London from Portland

The cheapest one-way flights from Portland to London
7:04 am - 2:30 am
Air Canada
2 Stops
14h 26m
PWM - LHR
Air Canada
$579
Travel2Be
3:25 am - 3:05 am
Virgin Atlantic
1 Stop
18h 40m
PWM - LHR
Virgin Atlantic
$616
DreamWorldTravel
3:45 pm - 12:10 pm
Turkish Airlines
2 Stops
39h 25m
PWM - LGW
Turkish Airlines
$4,133
KAYAK

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Portland</span> to <span class="emphasized">London</span> flights.

Flight FAQs

From Portland to London

Are flight prices decreasing from Portland to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Portland and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Portland to London have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Portland to London that may be offering flexible cancellation policies are American Airlines, Delta, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

What airport do you fly from for flights from Portland to London?

Portland (PWM) is the airport you will fly out of if you book a flight from Portland to London. You should not have trouble finding flights to London from Portland; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Portland airport to London. It is only a 2.9 mi journey to Portland (PWM) from Portland’s city center.

Can I find flights from Portland to London for under $700 on Cheapflights?

Yes, there are multiple flights from Portland to London for under $700. The cheapest flight booked recently is on Air Canada for just $675, but on average you can expect to pay $754.

Are there nonstop flights from Portland to London for under $700 on Cheapflights?

There are no nonstop flights from Portland to London, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Is Portland weather warmer or cooler than London?

You can imagine temperatures to be in the 81 °F range in July. The weather in London is generally colder than Portland's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Portland to London?

For as low as $704, Delta can have you in London from Portland in 9h 48m. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Portland to London round-trip?

Our cheapest airline available from Portland to London is Air Canada. Our recent data shows that you can find tickets from as low as $675 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $685 and $691 round-trip. These flights start at 37% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Portland to London one-way?

To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $579. Virgin Atlantic flights start at $616 while deals on Turkish Airlines start at $4,133 one-way.

Destination information for London

Things to know before you go - useful duration and weather info for your trip from Portland to London.
Today's exchange rate
$1 = £0.73
Average temperature for June in London
69.8 °F
Avg rainfall for June in London
1.7 ″

Airports servicing Portland

Airports servicing London

Gatwick (LGW)
City (LCY)
Stansted (STN)
Luton (LTN)
Southend (SEN)

Top 3 airlines flying from Portland to London

The chart below displays the airlines Cheapflights users traveling from Portland to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
$596 $852 No cancel fee N/A
American Airlines
$623 $927 No cancel fee 71%
United Airlines
$818 $1,759 No cancel fee 69%
Home Europe United Kingdom England London Cheap flights from Portland to London