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Cheap Flights from Portland to London

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      Travellers and cabin class, 1 Adult, Economy

      Compare Portland to London flight deals

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

      Book the best London fare with no extra fees

      Flight deals from Portland to London

      Looking for a cheap last-minute deal or the best return flight from Portland Airport to London? If you want to travel next month, return fares start from Rs200,483. Find the lowest prices on one-way and return tickets right here.
      London.Rs87,658 per passenger.Departing Sun, 4 Oct.One-way flight with jetBlue.Outbound indirect flight with jetBlue, departs from Portland on Sun, 4 Oct, arriving in London Heathrow.Price includes taxes and charges.From Rs87,658, select.
      London.Rs90,474 per passenger.Departing Thu, 5 Nov.One-way flight with United.Outbound indirect flight with United, departs from Portland on Thu, 5 Nov, arriving in London Heathrow.Price includes taxes and charges.From Rs90,474, select.
      London.Rs91,496 per passenger.Departing Wed, 28 Jul.One-way flight with Air France.Outbound indirect flight with Air France, departs from Portland on Wed, 28 Jul, arriving in London Heathrow.Price includes taxes and charges.From Rs91,496, select.
      London.Rs91,502 per passenger.Departing Mon, 15 Mar.One-way flight with Air France.Outbound indirect flight with Air France, departs from Portland on Mon, 15 Mar, arriving in London Heathrow.Price includes taxes and charges.From Rs91,502, select.
      London.Rs92,330 per passenger.Departing Sat, 8 May.One-way flight with Air France.Outbound indirect flight with Air France, departs from Portland on Sat, 8 May, arriving in London Heathrow.Price includes taxes and charges.From Rs92,330, select.
      London.Rs92,330 per passenger.Departing Fri, 30 Apr.One-way flight with United.Outbound indirect flight with United, departs from Portland on Fri, 30 Apr, arriving in London Heathrow.Price includes taxes and charges.From Rs92,330, select.
      London.Rs92,330 per passenger.Departing Sun, 27 Sep.One-way flight with Air France.Outbound indirect flight with Air France, departs from Portland on Sun, 27 Sep, arriving in London Heathrow.Price includes taxes and charges.From Rs92,330, select.
      London.Rs115,197 per passenger.Departing Wed, 9 Jun.One-way flight with Air France.Outbound indirect flight with Air France, departs from Portland on Wed, 9 Jun, arriving in London Heathrow.Price includes taxes and charges.From Rs115,197, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Portland to London found in the last 4 days, and are subject to change and availability.

      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 October.
      Sep
      from Rs92,139
      Oct
      from Rs87,477
      Nov
      from Rs90,286
      Dec
      Find prices
      Jan
      Find prices
      Feb
      Find prices
      Mar
      from Rs91,313
      Apr
      from Rs92,139
      May
      from Rs92,139
      Jun
      from Rs114,959
      Jul
      from Rs91,307
      Aug
      Find prices

      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.

      London City

      12km from central London
      Closest
      from Rs95,880
      Search flights

      London Heathrow

      23km from central London
      Cheapest
      from Rs87,477
      Search flights

      London Gatwick

      40km from central London
      from Rs92,805
      Search flights

      London Luton

      45km from central London
      from Rs98,597
      Search flights

      London Stansted

      49km from central London
      from Rs97,485
      Search flights

      London Southend

      57km from central London
      from Rs108,089
      Search flights

      Portland to London: Flight information

      The things to know before you go.
      Cheapest flight foundRs87,658
      Cheapest month to flyOctober

      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 Rs200,068. 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.
      Currently, there are no airlines that fly direct from Portland to London. But we found flights with one or more stops from Rs200,483.
      As of September 2026, there are no flights flying from Portland to London.
      The cheapest month to fly from Portland to London is usually October.
      If you're flying from Portland Airport, the cheapest airport near London is London Stansted – which is 48.7 km away from the centre of London. We've found flights into this airport from Rs200,068.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to London on Thursday, 15 October 2026.
      No airlines currently offer direct flights between Portland Airport and London. Most routes have one or more stops.
      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 September, the average temperature is usually around 16°C. July is typically the warmest month in London, when it usually averages around 23°C. You can expect the least rain in April. The coldest month is January, with temperatures averaging 2°C. The rainiest month is October.
      Currently, Air France offers the cheapest flight tickets to London.

      Flying from Portland International Jetport (PWM) to London: what you need to know

      • The timezone in London is UTC+0. The city is five hours ahead of Portland, where Portland International Jetport is located.

      • To avoid rushing for your PWM to London flight, leave plenty of time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the general rule.

      • You can expect longer queues during popular months such as August. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a good idea.

      • We make it a breeze to book plane tickets from PWM to London with a stopover. To see the options, uncheck 'Direct flights only.' Next, select a flight that has a stop long enough to explore the city of your choice. Well-traveled stopover hubs include:

        • New York John F. Kennedy International Airport (JFK)

        • Newark Liberty International Airport (EWR)

        • Orlando International Airport (MCO)

      • Located around 5 kilometres from central Portland, PWM can be reached in about 15 minutes by car, depending on traffic. The journey on public transport will take roughly 30 minutes.

      • Catching an early flight from Portland International Jetport to London? Avoid the stress of rushing to the airport (and enjoy a little extra shut-eye) by choosing one of these stays near PWM:

      • 79% of flights taking off from Portland International Jetport arrive at their destination on time.

      • You'll find PWM at 1001 Westbrook Street.

      How to find the cheapest flights from Portland International Jetport (PWM) to London

      • Rs87,477 is the lowest price we've found for a one-way Portland International Jetport to London flight. A return plane ticket right now is Rs200,068. Depending on how early you book and the availability, these fares could change.

      • To pick up cheap flights from PWM to London, book as early as you can. Airlines tend to offer lower prices when tickets are first released.

      • Finding cheap tickets from Portland International Jetport to London is easier if you're flexible with your travel plans. Try using the 'Whole month' search tool to get the lowest prices throughout the month and snap up a sweet deal.

      • Snapping up a cheap flight from PWM to London is easy with Price Alerts. Simply create one of these automatic notifications and we'll let you know when a lower fare pops up.

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

      Airports in London

      London Heathrow Airport (LHR)

      • London Heathrow Airport (LHR) to the centre of London takes about 45 minutes to reach by car. The centre is roughly 24 kilometres away.

      • If you're travelling by public transport, expect a journey time of around 25 minutes.

      • If you have a late flight from Portland International Jetport to London, few things beat the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and resting not long after at one of these accommodation options near LHR:

      • Secure the lowest price by booking your ride from London Heathrow Airport around one week before your flight from PWM to London.

      London Gatwick Airport (LGW)

      • After your flight from Portland International Jetport to London has touched down, you can reach the city centre in about 1 hour 5 minutes by car. Central London is roughly 48 kilometres from London Gatwick Airport (LGW).

      • Public transport will get you there in around 1 hour 20 minutes.

      • Following your PWM to London flight, kick back at a hotel close to LGW. These are some great accommodation options that'll help you switch to relaxation mode:

      • Get the pick of the lot. Securing your ride from LGW three weeks ahead of time often means lower prices and a greater selection of vehicles.

      London Stansted Airport (STN)

      • London Stansted Airport (STN) is about 56 kilometres from the centre of London. It takes about 1 hour 5 minutes to reach the city centre by car once you've hopped off your flight from Portland International Jetport to London.

      • Public transport can take you there in roughly 45 minutes.

      • Enjoy a more leisurely start to your break by staying at a hotel near STN after your PWM to London flight. Take a load off after a long travel day or simply give yourself time to get your bearings in a new city at:

      • Get a payoff by planning ahead. Book your ride from STN four weeks before your flight from Portland International Jetport to London for the lowest prices.

      Best time to go to London

      • January is the quietest month for flights from Portland International Jetport to London, while July is the most popular. Pick the best time to visit London based on whether you want a laid-back vibe or a lively atmosphere.

      • The warmest month in London is July, with temperatures ranging between 11ºC and 26ºC. Book your Portland International Jetport to London plane ticket then if that's your idea of comfortable weather.

      • If you want to travel in cooler conditions, look for a cheap ticket from PWM to London in January when temperatures average between 0ºC and 9ºC.

      More about London

      • Start your London trip off on the right foot by choosing the ideal place to stay. Once you've booked your flight from Portland International Jetport to London, browse our selection of hotels including:

      • All great adventures should include a little sightseeing. Westminster Abbey, The British Museum and Big Ben are essential stops on your London itinerary.

      Explore more of the United Kingdom

      • Manchester is just one of the many places in the United Kingdom waiting to be explored after you've experienced London. Around 257 kilometres away to the northwest, popular attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

      • Around 161 kilometres northwest of London, Birmingham is another favourite stop in the United Kingdom. Start your sightseeing at Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

      Plan the rest of your trip from Portland to London

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.