Cheap flights from Portland (PWM) to London (LON) from $349

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to London (average of $653). Flying from Portland, Maine to London in June is currently the most expensive (average of $1,150). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

• What airport do you fly from for flights from Portland to London?

  Portland (PWM) is the airport you will fly out of if you book a flight from Portland to London. You should not have trouble finding flights to London from Portland; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Portland airport to London. It is only a 2.9 mi journey to Portland (PWM) from Portland’s city center.

• Can I find flights from Portland, Maine to London for under $600 on Cheapflights?

  Yes, there are multiple flights from Portland, Maine to London for under $600. The cheapest flight booked recently is on JetBlue for just $593, but on average you can expect to pay $717.

• What are the cheapest airlines flying from Portland, Maine to London round-trip?

  Flying on JetBlue is currently your cheapest option to London, with prices starting at $593. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $713 and $718, respectively. JetBlue is 46% cheaper than the average price of flights available within the next 90 days to this destination.

• What are the cheapest airlines to fly from Portland, Maine to London one-way?

  To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $399. TAP AIR PORTUGAL flights start at $530 while deals on KLM start at $584 one-way.

• What are the most popular routes from Portland, Maine to London?

  Most travelers choose Portland - London Heathrow, Portland - London Gatwick or Portland - London City when deciding on the best route from Portland, Maine to London.

• What are the most popular airlines that fly from Portland, Maine to London?

  American Airlines, Delta and United Airlines are the most popular airlines when flying from Portland, Maine to London.

• What does PWM to LHR mean?

  This is defined as Portland Airport (PWM) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN).

• Can I find deals for flights from Portland to London that include extra baggage allowance?

  The amount of baggage you can bring on your Portland to London flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from Portland to London with specific airlines?

  Yes, Cheapflights allows you to browse and filter Portland to London flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from Portland to London that include hotel bookings?

  Yes. In addition to deals on Portland to London flights, Cheapflights offers vacation packages that include both flights and hotel.

• How can I find direct flights from Portland to London?

  After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to London.

• Can I find deals for business class flights from Portland to London?

  Yes. Cheapflights offers flight deals from Portland to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

• Can I find deals for flights from Portland to London that allow pets onboard?

  Many airlines flying from Portland to London offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from Portland to London?

  Yes, you can often find last-minute deals on Portland to London flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the Portland, Maine to London flight deals updated?

  The Portland, Maine to London flight deals you see on this page were last updated on 5/15.