£178 Find Cheap Flights from Portland to London – Compare and Save

While there are no nonstop flights between these two cities, American Airlines offers one-stop services that include a layover at Chicago O'Hare International Airport. Alaska Airlines also offers service to Los Angeles International Airport, where you can then take British Airways to London Heathrow International Airport.

There are several options to park your car at the airport. You can park in the short-term lot for about $27 a day, the long-term lot for about $24 a day, and the economy lot for about $12 a day. You can also use valet parking available at the airport for around $35 per day.

There are two great options for hotels with locations right on the airport property. The Hilton Garden Inn London Heathrow and the Aerotel London Heathrow are both perfect spots for travelers that want to stay at the airport.

Alaska Airlines has a lounge at Portland International Airport. Amenities include food and beverage choices, Wi-Fi, newspapers and magazines, plus several televisions and comfortable seating areas. The location of the lounge is just across from Gate C5.

Among airlines operating Portland to London flights:

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

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

Only British Airways operates flights between Portland and London.

Flights from Portland to London usually depart from Portland (PDX) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

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

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

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

• Economy class
• Premium Economy Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £419 return via Las Vegas Harry Reid Intl (LAS), compared with £755 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £52–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

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

• Reykjavik Keflavik Intl (KEF) – 58% of one-stop connections
• Seattle/Tacoma Intl (SEA) – 23% of one-stop connections
• Vancouver Intl (YVR) – 6% of one-stop connections
• Dallas/Fort Worth (DFW) – 3% of one-stop connections

Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 20% on the Portland to London route. Tuesday is the cheapest departure day at £626 return on average, while Saturday is the most expensive at £775, a difference of £150. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

Some of the most popular sights in London are London Victoria Station, London Euston Railway Station, and Hyde Park. These are among the most viewed places in London on KAYAK.

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

• Earliest: departs at 17:45 and lands at 03:17
• Latest: departs at 19:30 and lands at 05:02.

The flight takes about 9h 32m.

Last-minute fares on this route (booked within 2 weeks of departure) run 8% above the route average of £700. Book 9 weeks before departure for the lowest fares.

A direct flight from Portland to London takes 9h 32m, covering 4,904 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.

One-way fares from Portland to London are currently lower than usual. Average one-way flight prices are about £202, which is 49% below the typical average for this route.

Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time of 12h 54m, compared to 12h 59m via Salt Lake City (SLC) and 13h 01m via Seattle/Tacoma Intl (SEA).

London is 8 hours ahead of Portland (British Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Since London is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) – daily rates from around £5:

· GREEN MOTION
· DRIVALIA
· Europcar
· Alamo
· Hertz

Near London Gatwick Airport (LGW) – daily rates from around £6:

· GREEN MOTION
· DRIVALIA
· U-Save
· Europcar
· Alamo

Near London City Airport (LCY) – daily rates from around £8:

· GREEN MOTION
· Budget
· Hertz
· Avis
· Sixt

Near London Luton Airport (LTN) – daily rates from around £8:

· GREEN MOTION
· DRIVALIA
· Alamo
· Europcar
· Budget

Near London Stansted Airport (STN) – daily rates from around £7:

· GREEN MOTION
· DRIVALIA
· Europcar
· Alamo
· U-Save

Return flights from Portland to London range from £548 to £893, with an average of £700 over the past 12 months. Anything below £548 counts as a good deal.