Cheap Flights from London to Portland, ME from $3206

Return flight: Portland – London

On Cheapflightsplus.com you will find 37 connecting flights from London to Portland. You can compare airfare deals from 2 airlines and multiple travel sites from $3 206, book and save on cheap plane tickets and last minute offers. Also check out LON-PWM flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip London to Portland Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $3206 (one-way), $5498 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from London to Portland. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
09:00 — 23:15
09:00 — 12:00 AC869 Air Canada
London — Halifax
3h 15m stop
15:15 — 16:55 AC4482 Air Canada
Halifax — Newark
5h 4m stop
21:59 — 23:15 AC3566 Air Canada
Newark — Portland
19h 15m
including layover
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from$3220
09:00 — 23:15
+1 day
09:00 — 12:00 AC869 Air Canada
London — Halifax
22h 30m stop
10:30 — 12:18 AC8657 Air Canada
Halifax — Newark
9h 41m stop
21:59 — 23:15 AC3566 Air Canada
Newark — Portland
43h 15m
including layover
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from$3220
11:10 — 11:33
+1 day
11:10 — 14:25 AC855 Air Canada
London — Toronto
16h 5m stop
06:30 — 08:10 AC8872 Air Canada
Toronto — Newark
1h 50m stop
10:00 — 11:33 AC3462 Air Canada
Newark — Portland
29h 23m
including layover
Find flight
from$3211
11:10 — 23:15
11:10 — 14:25 AC855 Air Canada
London — Toronto
3h 40m stop
18:05 — 19:45 AC8882 Air Canada
Toronto — Newark
2h 14m stop
21:59 — 23:15 AC3566 Air Canada
Newark — Portland
17h 5m
including layover
Find flight
from$3229
14:30 — 11:33
+1 day
14:30 — 17:45 AC857 Air Canada
London — Toronto
12h 45m stop
06:30 — 08:10 AC8872 Air Canada
Toronto — Newark
1h 50m stop
10:00 — 11:33 AC3462 Air Canada
Newark — Portland
26h 3m
including layover
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from$3211
14:30 — 23:15
+1 day
14:30 — 17:45 AC857 Air Canada
London — Toronto
22h 15m stop
16:00 — 17:40 AC8880 Air Canada
Toronto — Newark
4h 19m stop
21:59 — 23:15 AC3566 Air Canada
Newark — Portland
37h 45m
including layover
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from$3211
15:00 — 23:15
+1 day
15:00 — 17:40 AC865 Air Canada
London — Montreal
17h 28m stop
11:08 — 13:01 AC4604 Air Canada
Montreal — Newark
9h 4m stop
22:16 — 23:37 AC3566 Air Canada
Newark — Portland
37h 15m
including layover
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from$3206
15:00 — 23:15
+1 day
15:00 — 17:40 AC865 Air Canada
London — Montreal
19h 35m stop
13:15 — 14:58 AC8940 Air Canada
Montreal — Newark
7h 1m stop
22:16 — 23:37 AC3566 Air Canada
Newark — Portland
37h 15m
including layover
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from$3206
17:15 — 18:31
+1 day
17:15 — 18:35 BA4468 British Airways
London — Dublin
14h 25m stop
09:00 — 11:50 OS7811 Austrian Airlines
Dublin — Newark
5h 10m stop
17:17 — 18:46 OS7739 Austrian Airlines
Newark — Portland
30h 16m
including layover
Find flight
from$5363
18:00 — 23:15
+1 day
18:00 — 21:00 AC859 Air Canada
London — Toronto
14h 30m stop
11:30 — 13:10 AC8876 Air Canada
Toronto — Newark
8h 49m stop
21:59 — 23:15 AC3566 Air Canada
Newark — Portland
34h 15m
including layover
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from$3211
18:00 — 23:15
+1 day
18:00 — 21:00 AC859 Air Canada
London — Toronto
17h stop
14:00 — 15:48 AC8878 Air Canada
Toronto — Newark
6h 11m stop
22:16 — 23:37 AC3566 Air Canada
Newark — Portland
34h 15m
including layover
Find flight
from$3211
19:25 — 18:31
+1 day
19:25 — 20:45 BA4470 British Airways
London — Dublin
12h 15m stop
09:00 — 11:50 OS7811 Austrian Airlines
Dublin — Newark
5h 10m stop
17:17 — 18:46 OS7739 Austrian Airlines
Newark — Portland
28h 6m
including layover
Find flight
from$5363
*Departure and arrival times - local. Updated on February 23, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from London to Portland depends on and how to choose the most interesting flight option for you.

Distance between London and Portland is 5131 miles. Time difference between the cities is 5h. Airplanes depart 09:00 to 19:25 from 10 London airports and arrive 09:00 to 19:25 to 1 Portland airport. Average flight time is 34h 15m.

  • The fastest flight 17h 5m
  • Average flight time 34h 15m
  • The earliest flight 09:00
  • The latest flight 19:25
  • Distance 3189 ml

The cheapest months to travel to Portland are february (from 3 206 $), december (from 3 231 $), november (from 5 363 $).

What is the lowest airfare London to Portland?

The cheapest plane ticket found by our users is $3 206. This airfare is for economy class on one-way AC865 flight by Air Canada for February 21, 2025 which leaves Heathrow in London at 15:00 am and arrives at Portland Portland Intl Jetport at 23:15.

Economy class
$3 206
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Business class
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First class
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Popular Airlines on the Route

The flight London — Portland is served by 2 regular airlines . Most of the flights on this route are operated by British Airways - 2 departures per week at the price of from $ 5363 . And the most expensive tickets are offered by British Airways airline - from $ 5363.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 37 flights with layovers on the route. The fastest connecting flight is AC855 by Air Canada takes 17h 5m and the cheapest is AC865 by Air Canada for $3206.

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Airports

You can fly from London to Portland from 10 airports (London City, London-Waterloo, Heathrow, Luton, British Rail Terminal, London Biggin Hill, Stansted, Gatwick, Ebbsfleet International Rail St, Stratford International Rail St).

London airports

  • London City-LCY
    from $5363
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  • London-Waterloo-QQW
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  • Heathrow-LHR
    from $3206
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  • Luton-LTN
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  • British Rail Terminal-ZLX
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  • London Biggin Hill-BQH
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  • Stansted-STN
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  • Gatwick-LGW
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  • Ebbsfleet International Rail St-XQE
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  • Stratford International Rail St-XOF
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Portland airports

  • Portland Intl Jetport-PWM
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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