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Cheap Flights from Portland to London

Compare Portland to London flight deals

Find the cheapest month or even day of the year to fly to London

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Flight deals from Portland to London

Looking for a cheap last-minute deal or the best return flight from Portland to London? Find the lowest prices on one-way and return tickets right here.
London.Rs54,273 per passenger.Departing Tue, 5 Aug.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Portland on Tue, 5 Aug, arriving in London Gatwick.Price includes taxes and charges.From Rs54,273, select.
London.Rs64,619 per passenger.Departing Wed, 1 Oct.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Portland on Wed, 1 Oct, arriving in London Heathrow.Price includes taxes and charges.From Rs64,619, select.
London.Rs66,583 per passenger.Departing Mon, 22 Sep.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Portland on Mon, 22 Sep, arriving in London Gatwick.Price includes taxes and charges.From Rs66,583, select.
London.Rs66,775 per passenger.Departing Wed, 23 Jul.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Portland on Wed, 23 Jul, arriving in London Gatwick.Price includes taxes and charges.From Rs66,775, select.
London.Rs84,338 per passenger.Departing Sat, 8 Nov.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Portland on Sat, 8 Nov, arriving in London Gatwick.Price includes taxes and charges.From Rs84,338, select.
London.Rs100,708 per passenger.Departing Tue, 19 May.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Portland on Tue, 19 May, arriving in London Gatwick.Price includes taxes and charges.From Rs100,708, select.
London.Rs106,555 per passenger.Departing Thu, 15 Jan.One-way flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Portland on Thu, 15 Jan, arriving in London Heathrow.Price includes taxes and charges.From Rs106,555, select.
London.Rs113,234 per passenger.Departing Sat, 6 Dec.One-way flight with United.Outbound indirect flight with United, departs from Portland on Sat, 6 Dec, arriving in London Heathrow.Price includes taxes and charges.From Rs113,234, select.

Find the cheapest month to fly from Portland to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to London flights are currently cheapest in August.
Jul
from Rs66,775
Aug
from Rs54,273
Sep
from Rs66,583
Oct
from Rs64,619
Nov
from Rs84,338
Dec
from Rs113,234
Jan
from Rs106,555
Feb
Find prices
Mar
from Rs135,823
Apr
from Rs121,005
May
from Rs100,708
Jun
from Rs200,253

Direct flights from Portland to London

Alternative Portland to London routes

Looking for the cheapest, fastest or easiest route from Portland to London? You could fly into the following airports instead.

Portland to London: Flight information

The things to know before you go.
Cheapest flight foundRs54,273
Cheapest month to flyAugust
Average flight time9 hrs, 36 mins
Most popular airlineBritish Airways
Average flights per week44

Finding cheap flights from Portland to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Portland to London is Rs141,936. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
9 hours and 36 minutes is the average flight time from Portland to London.
British Airways, Malaysia Airlines and Alaska Airlines fly direct from Portland to London.
As of July 2025, there are 44 flights per week flying from Portland to London.
The cheapest month to fly from Portland to London is usually December.
If you're flying from Portland Airport, the cheapest airport near London is London Heathrow – which is 22.9 km away from the centre of London. We've found flights into this airport from Rs141,936.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to London on Wednesday, 3 December 2025.
Yes – the average flight time is 9 hours and 36 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
In July, the average temperature is usually around 17°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, Lufthansa and British Airways offer the cheapest flight tickets to London.

Travelling from Portland International Airport (PDX) to London: what you need to know

  • Book a direct flight from Portland International Airport to London and you'll be in the air for an average of 10 hours.

  • Portland International Airport is located in Portland. Following the UTC+0 timezone, London is seven hours ahead of Portland.

  • The busiest route is from Portland International Airport (PDX) to London Heathrow Airport (LHR). Take your pick of six weekly services between these two airports. British Airways offers a 18:30 departure between PDX and LHR.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to catch your PDX to London flight.

  • If you're jetting off during a bank holiday or another peak period, allow extra time. A good rule is two hours before domestic flights and up to four hours before international departures. Lines at check-in and security will be longer.

  • Direct Portland International Airport to London tickets are available for booking. London Heathrow Airport (LHR) is where you'll be landing.

  • Book your ticket with British Airways. This popular carrier operates direct flights from Portland International Airport to London.

  • We make it easy to book flight tickets from PDX to London with a stopover. To see all your options, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to explore the city of your choice. The most sought-after stopovers include:

    • Denver International Airport (DEN)

    • Amsterdam Airport Schiphol (AMS)

    • Seattle-Tacoma International Airport (SEA)

  • Travelling from central Portland to PDX takes around 45 minutes on public transport. If you drive, ride-share or take a cab, you'll cover the 10 kilometres in 20 minutes or so, depending on traffic conditions.

  • Want a leisurely start to your journey? Stay near PDX. Whether you're catching an early flight from Portland International Airport to London or just don't like being rushed, these hotels are a convenient choice:

  • Portland International Airport has an excellent on-time record, so you're unlikely to face delays. Departures from PDX land on schedule 83.65% of the time.

  • PDX's address is 7000 NE Airport Way.

How to find the cheapest flights from Portland International Airport (PDX) to London

  • Rs54,273 is currently the lowest price for a one-way Portland International Airport to London flight. A return flight ticket starts at Rs141,936. These fares can change based on demand.

  • Book three months before travelling. Pricing trends show that this is the ideal window for finding cheap flights from PDX to London.

  • The best month for picking up cheap Portland International Airport to London tickets is July. Use the 'Whole month' tool to compare all available prices, then select the dates that offer the lowest fares.

  • Cut down on the time spent looking for cheap flights from PDX to London by creating a Price Alert. You'll get an email or notification on the app when a new discounted fare appears.

  • Select your preferred arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Portland International Airport to London by 'Best,' 'Fastest' or 'Cheapest.'

Airports in London

London Heathrow Airport (LHR)

  • London Heathrow Airport (LHR) to central London takes about 55 minutes to reach by car. The centre is roughly 31 kilometres away.

  • Getting there by public transport takes around 1 hour.

  • The last thing you need is a lengthy journey to your hotel if you're landing late on a flight from Portland International Airport to London. Book one of these accommodation options near LHR instead:

  • Get on the fast track to adventure by picking up a London Heathrow Airport rental car. Grab your wheels from Surprice, U-Save or Green Motion and experience the lesser-explored corners of London and beyond.

  • Booking your ride from London Heathrow Airport about one week ahead of your flight from PDX to London can help you secure the lowest rate.

London Gatwick Airport (LGW)

  • London Gatwick Airport (LGW) is roughly 80 kilometres from the centre of London. Once you've disembarked your flight from Portland International Airport to London, it'll take you around 1 hour 20 minutes to get to the heart of the city in a cab or ride-share.

  • If you choose to travel on public transport, you'll reach the centre in 30 minutes or so.

  • There are some great places to rest your head close to LGW. Kick back and get cosy after your PDX to London flight at any of these perfectly located options:

  • The fastest way to reach your destination is with a London Gatwick Airport rental car. Grab your wheels from Green Motion, U-Save or Drivalia and hit the road in a heartbeat.

  • Get exactly what you want. Securing your ride from LGW three weeks in advance often means better deals and a wider range of vehicles.

Stansted Airport (STN)

  • Stansted Airport (STN) is about 64 kilometres from the centre of London. It'll take you about 1 hour to get to the city centre in a ride-share or cab after your flight from Portland International Airport to London.

  • Public transport will get you there in roughly 1 hour 25 minutes.

  • Enjoy a more relaxed start to your break by staying at a hotel near STN after your PDX to London flight. Take a load off after a long travel day or just take a moment to get your bearings in a new city at:

  • Put yourself in the driver's seat of the next leg of your trip by picking up a Stansted Airport rental car. Green Motion, Drivalia and Europcar are reliable rental providers.

  • Around four weeks ahead of your flight from Portland International Airport to London is the ideal time to secure your vehicle from STN. You're more likely to lock in a better rate or pick up some early bird promotions.

Best time to go to London

  • Carefully consider your trip dates before locking in your flight from Portland International Airport to London. The city buzzes in high season, but prices are generally higher and major attractions can be crowded. Go to London in the low season if you prefer a more relaxed vibe.

  • The warmest month in London is July, with temperatures ranging between 11ºC and 26ºC. Book your Portland International Airport to London flight ticket then if that's your definition of good weather.

  • January has average temperatures of between 0ºC and 9ºC. Look for a cheap ticket from PDX to London around that time if you like cooler conditions.

More about London

  • Start your London trip right by choosing the ideal place to stay. Once you've booked your flight from Portland International Airport to London, browse our selection of accommodation options including:

  • There are so many things to see and do in this city it can be tricky to work out where to begin. The British Museum, Big Ben and Buckingham Palace are popular attractions which should feature on any well-planned London itinerary.

Explore more of United Kingdom

  • London has loads to offer, but there are so many other corners of United Kingdom you'll want to see. About 161 kilometres north-west of London, a trip to Birmingham will keep you on the move. Check out popular attractions like Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • Bristol is another sought-after destination in United Kingdom and is around 177 kilometres west of London. No trip is complete without seeing Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Plan the rest of your trip from Portland to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.