฿21,015 Cheap Flights from Portland (PDX) to London (LON)

View ฿21,015 flight on Tue, 7 Jul 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to London

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Portland (PDX) to London (LON)

Prices were available within the past 7 days and start at ฿21,015 for one-way flights and ฿46,195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿46,195 Return, found 6 days ago
฿46,195
Return
found 6 days ago
Select Delta flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿46,195 found 6 days ago
Air Canada
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿46,200 Return, found 6 days ago
฿46,200
Return
found 6 days ago
Select Air Canada flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿46,200 found 6 days ago
United
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿46,310 Return, found 6 days ago
฿46,310
Return
found 6 days ago
Select United flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿46,310 found 6 days ago
Delta
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿46,385 Return, found 6 days ago
฿46,385
Return
found 6 days ago
Select Delta flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿46,385 found 6 days ago
Lufthansa
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿46,990 Return, found 6 days ago
฿46,990
Return
found 6 days ago
Select Lufthansa flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿46,990 found 6 days ago
KLM
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿47,100 Return, found 6 days ago
฿47,100
Return
found 6 days ago
Select KLM flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿47,100 found 6 days ago
Delta
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿47,290 Return, found 6 days ago
฿47,290
Return
found 6 days ago
Select Delta flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿47,290 found 6 days ago
Delta
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿47,610 Return, found 6 days ago
฿47,610
Return
found 6 days ago
Select Delta flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿47,610 found 6 days ago
Delta
Wed, 8 Jul - Sun, 19 Jul
PDX
Portland
LHR
London
฿47,800 Return, found 6 days ago
฿47,800
Return
found 6 days ago
Select Delta flight, departing Wed, 8 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿47,800 found 6 days ago
Alaska Airlines
Tue, 7 Jul - Sun, 19 Jul
PDX
Portland
LGW
London
฿48,751 Return, found 6 days ago
฿48,751
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 7 Jul from Portland to London, returning Sun, 19 Jul, priced at ฿48,751 found 6 days ago

Find the cheapest month to fly from Portland (PDX) to London (LON)

April is typically the cheapest month to fly

From ฿19,767 - ฿49,301 per traveller.

Frequently asked questions

How much is a flight from PDX to London (LON-All Airports)?
Round-trip tickets between PDX Airport and London (LON-All Airports) start from ฿46,195. This is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PDX Airport to London (LON-All Airports)?
We get that your situation can change unexpectedly, so we've made it as hassle-free as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Portland Intl. Airport (PDX) to London (LON-All Airports) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PDX to London (LON-All Airports) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Portland Intl. Airport (PDX) to London (LON-All Airports)?
The distance is around 7,900 kilometres, so pack your carry-on luggage with all the things you need to make the long journey comfortable. Not sure what to take on board your Portland to England flight? A neck pillow, earplugs and a sleep mask are among the essentials.
Which airlines fly direct from Portland Intl. Airport (PDX) to London (LON-All Airports)?
Flying straight from PDX to London (LON-All Airports) is simple with British Airways (BA). This top airline operates 17 flights every month.
Are PDX Airport to London (LON-All Airports) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from PDX to London (LON-All Airports) at the last minute could be your ticket to a cheap deal. However, it could end up costing a great deal more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

Travel information

Origin airport
Portland Intl.
Destination airport
Heathrow
Return price
฿46,195
Distance
7839 km
*Available to Expedia members.