£226 Find Cheap Flights from Portland to London Heathrow Airport – Compare and Save

These are the earliest and latest flight times available from Portland to London Heathrow Airport:

• Earliest: departs at 17:45 and lands at 03:20
• Latest: departs at 18:45 and lands at 04:20.

The flight takes about 9h 35m.

Two cabin classes are available on flights from Portland to London Heathrow Airport:

• Economy class
• Premium Economy Class

A direct flight from Portland to London Heathrow Airport takes 9h 35m, covering 4,896 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Return flights from Portland to London Heathrow Airport range from £594 to £954, with an average of £748 over the past 12 months. Anything below £594 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 1% above the £748 route average. Book 2 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £604 return via Reykjavik Keflavik Intl (KEF), compared with £794 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £52–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 787-10 Dreamliner family is used most often on this route, operated mainly by British Airways and Iberia. Other aircraft seen on the route include Boeing 787-8 Dreamliner variants.

Evening is the busiest departure period on Portland to London Heathrow Airport flights, with 100% leaving in that window. Morning departures account for 0%, Afternoon flights for 0%, and Night flights for 0%.

American Airlines is the only airline on the Portland to London Heathrow Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Portland to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about £231, which is 43% below the typical average for this route.

London Heathrow Airport (LHR) hosts 5 major car hire companies, with daily rates starting from around £5 for economy cars. Top options include:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Flights from Portland to London Heathrow Airport usually depart from Portland (PDX) and arrive at London Heathrow (LHR).

One-stop flights from Portland to London Heathrow Airport most commonly connect through:

• Reykjavik Keflavik Intl (KEF) – 53% of one-stop connections
• Seattle/Tacoma Intl (SEA) – 25% of one-stop connections
• Vancouver Intl (YVR) – 11% of one-stop connections
• Amsterdam Schiphol (AMS) – 3% of one-stop connections

Yes. Flexible dates can save you up to 18% on flights from Portland to London Heathrow Airport. Tuesday is the cheapest departure day at £677 return on average, while Saturday is the most expensive at £823, a difference of £146.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Only British Airways operates flights between Portland and London Heathrow Airport.

Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time of 13h, compared to 13h 02m via Salt Lake City (SLC) and 13h 13m via Seattle/Tacoma Intl (SEA).

London Heathrow Airport is 7 hours ahead of Portland (British Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in London Heathrow Airport are Hyde Park, Tower Bridge, and Royal Albert Hall. These are among the most viewed places in London Heathrow Airport on KAYAK.

Among airlines operating Portland to London Heathrow Airport flights:

• British Airways: offers extra legroom; offers free seat selection
• Iberia: offers free seat selection
• American Airlines: offers free seat selection
• Aer Lingus: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• British Airways: a cabin bag and a checked bag in Economy class
• Iberia: a cabin bag and a checked bag in Economy class
• American Airlines: a cabin bag and a checked bag in Economy class

Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.