Cheap Flights from Portland to London from IDR 4,370,074

Flight FAQs

• Which airlines offer the cheapest flights from Portland (PWM) to London (LON)?

  Based on Trip.com data, United Airlines offers one-way fares as low as IDR 4,370,074 on Cheapest nonstop routes (e.g. PWM to LHR on Fri, Jan 9), while Delta Air Lines offers Cheapest nonstop round-trips from IDR 9,743,733 departing on Tue, Dec 9 and returning on Tue, Dec 16.

• Which airlines offer direct flights from Portland to London?

  At the moment, you can catch a direct flight from Portland to London with the following airlines, including: Jetblue Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Portland to London?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to London 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.

• How can I find the best deals on flights from Portland to London?

  To find best deals on flights from Portland to London, 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 Fri, Jan 9, with one-way flights priced at just IDR 4,370,074.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
  · 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 London travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Portland to London to get the best price?

  The cheapest months to fly from Portland to London is October, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Portland to London?

  After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Portland to London on December 8, 2025 with United Airlines, with prices starting at IDR 4,539,693.

• Which airports can I fly through when travelling to London from Portland?

  You can land at any one of the following hubs in London, with Portland International Jetport to Heathrow Airport (PWM-LHR) is by far the most common option on this route: London City Airport (LCY) London Gatwick Airport (LGW) Heathrow Airport (LHR) London Luton Airport (LTN) London Southend Airport (SEN) London Stansted Airport (STN).

• What is the time difference between Portland and London?

  The time difference between London and Portland is 5h.

• How can I change or cancel my flight ticket from Portland to London?

  Tickets can only be changed or cancelled 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.