Cheap flights from London to Portland

London
LON
Portland
PDX

Flight deals from London to Portland

Below you can see the best deals on flights London — Portland for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 14 September, from $512.

Top 10 cheap flights from London to Portland

TS
TS
DL
DL
$ 509

London — Portland

11:35—10:24
21 Sep 2026
30 h 49 m
3 stops
TS
TS
DL
DL
$ 509

London — Portland

11:35—10:24
14 Sep 2026
30 h 49 m
3 stops
TS
DL
DL
$ 509

London — Portland

12:40—10:24
25 Sep 2026
29 h 44 m
2 stops
TS
DL
DL
$ 509

London — Portland

09:40—10:24
21 Sep 2026
32 h 44 m
2 stops
TS
TS
DL
DL
$ 511

London — Portland

11:35—10:24
14 Sep 2026
30 h 49 m
3 stops
TS
TS
DL
DL
$ 511

London — Portland

11:35—10:24
14 Sep 2026
30 h 49 m
3 stops
TS
UA
$ 522

London — Portland

11:35—00:34
25 Sep 2026
20 h 59 m
1 stop
TS
WS
WS
$ 523

London — Portland

09:40—13:50
11 Sep 2026
36 h 10 m
2 stops
TS
TS
DL
DL
$ 524

London — Portland

09:40—10:24
25 Sep 2026
32 h 44 m
3 stops
TS
TS
DL
DL
$ 524

London — Portland

09:40—10:49
25 Sep 2026
33 h 9 m
3 stops

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the London — Portland flight

Looking for cheap flights from London to Portland? Compare fares from different airlines, check the flight schedule and travel time — and book your London — Portland ticket online at the best price.

The route has direct flights — around 27 flights per week, flights are operated by British Airways, Aer Lingus, Alaska Airlines, Finnair and 3 more airlines, a nonstop flight takes about 10 h, the distance between the cities is around 7,930 km.

Planning your trip? You may find our Portland travel guide, how to get from the airport into town and Portland weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $512Min. price
SeptemberCheapest
JanuaryPeak season
YesDirect flights
7,930 kmDistance
10 hTravel time
7Airlines
27 / wkFlights

Flight schedule from London to Portland

The table shows direct flights from London to Portland on the selected date. The flight takes approximately 10 h. Regular flights are operated by British Airways, Aer Lingus, Alaska Airlines and Finnair. Departures from Heathrow Airport, London Gatwick Airport and Stansted Airport airports, arrivals at Portland International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 25 Aug 2026

Flight ticket prices by day: London — Portland

Below is a calendar of the lowest flight ticket prices for London — Portland by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $512 in September, and the most expensive are around $656 in January. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from London to Portland by month. Tickets are usually cheapest in October (around $684) and priciest in August (about $1,571) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$816lowMay$876mediumSep$729low
Feb$882mediumJun$940mediumOct$684low
Mar$867mediumJul$1,272highNov$764low
Apr$864mediumAug$1,571highDec$789low

Some values are estimated based on seasonality.

When to fly

Weather in Portland: it is warmest in August (up to 29 °C on average) and coolest in December (around 8 °C). The driest month is July.

Tickets are usually cheapest in September and most expensive in January. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Portland

Dry and wet days · Portland

Wind speed and direction · Portland

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How to get the best deal on a London — Portland ticket

  • Book ahead: fares for London — Portland are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • London is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Portland is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the London — Portland route are operated by 7 airlines; British Airways runs the most flights (around 52% of all flights). Compare carriers, flight shares and schedules below.

  • British AirwaysBA
    5x/week
    WebsiteFleet: 29243M pax/year
    • Direct flight LHR → PDX5x/week
    51.9%Open →
  • Aer LingusEI
    3x/week
    WebsiteFleet: 5710.7M pax/year
    • Direct flight LHR → PDX3x/week
    29.6%Open →
  • Alaska AirlinesAS
    1x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight LHR → PDX1x/week
    3.7%Open →
  • FinnairAY
    1x/week
    WebsiteFleet: 7911M pax/year
    • Direct flight LHR → PDX1x/week
    3.7%Open →
  • American AirlinesAA
    1x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight LHR → PDX1x/week
    3.7%Open →
  • IberiaIB
    1x/week
    WebsiteFleet: 9224M pax/year
    • Direct flight LHR → PDX1x/week
    3.7%Open →
  • Malaysia AirlineMH
    1x/week
    WebsiteFleet: 8916.6M pax/year
    • Direct flight LHR → PDX1x/week
    3.7%Open →

Cities and airports on the London — Portland route

Flights London — Portland depart from Heathrow Airport, London Gatwick Airport, Stansted Airport and London Luton Airport and arrive at Portland International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

London

LON
United Kingdom
About the cityHow to get thereWeatherAll about the country United Kingdom
Arrival

Portland

PDX
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the London — Portland flight

How long is the flight from London to Portland?

A nonstop London — Portland flight takes about 10 h — the distance between the cities is around 7,930 km.

How far is it from London to Portland?

The distance from London to Portland is about 7,930 km, which a nonstop flight covers in around 10 h.

Are there direct flights from London to Portland?

Yes, there are nonstop flights London — Portland — around 27 flights per week.

Which airlines fly from London to Portland?

Airlines operating London — Portland include British Airways, Aer Lingus, Alaska Airlines, Finnair, American Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do London — Portland flights use?

Flights from London depart from Heathrow Airport, London Gatwick Airport, Stansted Airport, and arrive at Portland International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from London to Portland?

The price of a London — Portland ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in January. Tickets typically cost between $512 and $656. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights London — Portland?

Flights London — Portland are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from London to Portland?

To catch a low fare London — Portland, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from London

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Where else you can fly from Portland

See all
SeattleLos AngelesSan FranciscoDenverSalt Lake CityChicagoSan JoseNew York CitySan DiegoPhoenixAnchorageLas VegasBoiseVancouverMinneapolisSanta AnaSpokaneSacramentoRedmondHonoluluSanta RosaMedfordAtlantaDallasFresnoOaklandEugeneBurbankBostonRenoPascoWashington, D.C.HoustonAustinPhiladelphiaFairbanksMissoulaCharlotteBozemanPalm Springs

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