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Flights from London to Portland

Find the cheapest flight options from London to Portland over the next three months. Book one-way tickets from NZD 654 and round-trip tickets from NZD 1,103.

      • LGW 13:00
        15h 30m
        1 stop
        PWM 23:30
        London - Portland | Mon, Jan 12 | Norse Atlantic Airways
        PWM 08:35
        16h 25m
        1 stop
        LGW 06:00
        Portland - London | Sun, Jan 18 | United Airlines
        NZD 1,103 NZD 1,716
        36% OFF
        36% OFF
        NZD 1,716 NZD 1,103
      • LHR 18:00
        20h 1m
        1 stop
        PWM 09:01
        London - Portland | Fri, Jan 16 | Lufthansa
        PWM 15:12
        10h 8m
        1 stop
        LHR 06:20
        Portland - London | Fri, Jan 23 | United Airlines
        NZD 1,248 NZD 1,716
        27% OFF
        27% OFF
        NZD 1,716 NZD 1,248
      • LHR 18:00
        20h 1m
        1 stop
        PWM 09:01
        London - Portland | Fri, Jan 16 | Austrian Airlines
        PWM 06:00
        10h 20m
        1 stop
        LHR 21:20
        Portland - London | Fri, Jan 23 | United Airlines
        NZD 1,248 NZD 1,716
        27% OFF
        27% OFF
        NZD 1,716 NZD 1,248
      • LHR 12:50
        15h 40m
        1 stop
        PWM 23:30
        London - Portland | Fri, Jan 16 | United Airlines
        PWM 06:00
        10h 20m
        1 stop
        LHR 21:20
        Portland - London | Fri, Jan 23 | United Airlines
        NZD 1,248
        27% OFF
        NZD 1,716 NZD 1,248
      • LHR 12:00
        11h 50m
        1 stop
        PWM 18:50
        London - Portland | Thu, Jan 15 | Austrian Airlines
        PWM 06:00
        10h 20m
        1 stop
        LHR 21:20
        Portland - London | Mon, Jan 19 | United Airlines
        NZD 1,250
        27% OFF
        NZD 1,716 NZD 1,250
      • LHR 12:00
        11h 50m
        1 stop
        PWM 18:50
        London - Portland | Sun, Jan 18 | Austrian Airlines
        PWM 19:27
        10h 38m
        1 stop
        LHR 11:05
        Portland - London | Sun, Jan 25 | United Airlines
        NZD 1,250
        27% OFF
        NZD 1,716 NZD 1,250
      • LHR 12:00
        11h 50m
        1 stop
        PWM 18:50
        London - Portland | Mon, Feb 2 | United Airlines
        PWM 08:40
        18h 45m
        1 stop
        LHR 08:25
        Portland - London | Mon, Feb 9 | Austrian Airlines
        NZD 1,251
        27% OFF
        NZD 1,716 NZD 1,251
      • LHR 12:50
        15h 40m
        1 stop
        PWM 23:30
        London - Portland | Tue, Jan 20 | United Airlines
        PWM 08:35
        18h 50m
        1 stop
        LHR 08:25
        Portland - London | Sun, Jan 25 | Austrian Airlines
        NZD 1,252
        27% OFF
        NZD 1,716 NZD 1,252
      • LHR 16:00
        12h 30m
        1 stop
        PWM 23:30
        London - Portland | Tue, Jan 20 | Lufthansa
        PWM 08:35
        18h 50m
        1 stop
        LHR 08:25
        Portland - London | Sun, Jan 25 | Austrian Airlines
        NZD 1,252
        27% OFF
        NZD 1,716 NZD 1,252
      • LHR 12:05
        11h 49m
        1 stop
        PWM 18:54
        London - Portland | Sat, Jan 17 | United Airlines
        PWM 06:00
        10h 20m
        1 stop
        LHR 21:20
        Portland - London | Wed, Jan 21 | United Airlines
        NZD 1,253
        27% OFF
        NZD 1,716 NZD 1,253
      • LON 13:00
        17h 25m
        1 stop
        PWM Invalid Date
        London - Portland | Sun, Dec 14 | Normal Airline
        PWM 15:00
        6h
        Direct
        LON 16:00
        Portland - London | Tue, Dec 16 | Normal Airline
        Find More Flights
        Find More Flights
      • LGW 13:00
        15h 30m
        1 stop
        PWM 23:30
        London - Portland | Tue, Jan 27 | Norse Atlantic Airways
        NZD 654 NZD 1,165
        44% OFF
        44% OFF
        NZD 1,165 NZD 654
      • LGW 13:00
        25h 1m
        1 stop
        PWM 09:01
        London - Portland | Mon, Feb 2 | Norse Atlantic Airways
        NZD 680 NZD 1,165
        42% OFF
        42% OFF
        NZD 1,165 NZD 680
      • LGW 13:00
        25h 1m
        1 stop
        PWM 09:01
        London - Portland | Sun, Jan 18 | Norse Atlantic Airways
        NZD 707 NZD 1,165
        39% OFF
        39% OFF
        NZD 1,165 NZD 707
      • LGW 14:00
        29h 48m
        1 stop
        PWM 14:48
        London - Portland | Fri, Feb 6 | Norse Atlantic Airways
        NZD 716
        39% OFF
        NZD 1,165 NZD 716
      • LGW 13:00
        29h 56m
        1 stop
        PWM 13:56
        London - Portland | Tue, Jan 13 | Norse Atlantic Airways
        NZD 724
        38% OFF
        NZD 1,165 NZD 724
      • LGW 13:00
        15h 30m
        1 stop
        PWM 23:30
        London - Portland | Mon, Jan 19 | Norse Atlantic Airways
        NZD 763
        35% OFF
        NZD 1,165 NZD 763
      • LGW 13:00
        15h 30m
        1 stop
        PWM 23:30
        London - Portland | Sun, Jan 25 | Norse Atlantic Airways
        NZD 805
        31% OFF
        NZD 1,165 NZD 805
      • LGW 14:00
        29h 48m
        1 stop
        PWM 14:48
        London - Portland | Fri, Jan 9 | Norse Atlantic Airways
        NZD 836
        28% OFF
        NZD 1,165 NZD 836
      • LHR 08:05
        20h 25m
        1 stop
        PWM 23:30
        London - Portland | Mon, Feb 2 | Jetblue Airways
        NZD 838
        28% OFF
        NZD 1,165 NZD 838
      • LHR 07:25
        21h 5m
        1 stop
        PWM 23:30
        London - Portland | Tue, Jan 27 | Jetblue Airways
        NZD 851
        27% OFF
        NZD 1,165 NZD 851
      • LON 13:00
        17h 25m
        1 stop
        PWM Invalid Date
        London - Portland | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from London to Portland are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for London to Portland

The distance between London and Portland is 5,130.81 km. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight priceNZD 654
Cheapest round-trip ticket priceNZD 1,103
Off-season for travelSeptember
Peak season for travelJuly
Flight distance5,130.81 km

Find the best time to fly from London to Portland

The cheapest time for London to Portland flights: Feb 1 to Feb 8 — one way flight prices from NZD 582.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from London to Portland, calculated over the upcoming 10 weeks.

Flight FAQs

  • What are the cheapest flights from London to Portland (LON-PWM)?

    Based on Trip.com data, Norse Atlantic Airways offers one-way fares as low as NZD 654 on Cheapest nonstop routes (e.g. LGW to PWM on Tue, Jan 27), while Norse Atlantic Airways offers Cheapest nonstop round-trips from NZD 1,103 departing on Mon, Jan 12 and returning on Sun, Jan 18.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to Portland is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from London to Portland, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jan 27, with one-way flights priced at just NZD 654.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Norse Atlantic Airways.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Portland travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from London to Portland is September, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from London to Portland on December 17, 2025 with Virgin Atlantic, with prices starting at NZD 1,319.
  • The time difference between Portland and London is 5h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.