฿13,490 Cheap Flights from Portland (PDX) to London (LON)

View ฿13,490 flight on Fri, 20 Mar 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to London

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

Prices were available within the past 7 days and start at ฿13,490 for one-way flights and ฿21,440 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 20 Mar - Tue, 31 Mar
PDX
Portland
LHR
London
฿21,440 Return, found 2 days ago
฿21,440
Return
found 2 days ago
Select Delta flight, departing Fri, 20 Mar from Portland to London, returning Tue, 31 Mar, priced at ฿21,440 found 2 days ago
Delta
Fri, 20 Mar - Tue, 31 Mar
PDX
Portland
LHR
London
฿21,950 Return, found 2 days ago
฿21,950
Return
found 2 days ago
Select Delta flight, departing Fri, 20 Mar from Portland to London, returning Tue, 31 Mar, priced at ฿21,950 found 2 days ago
Delta
Fri, 20 Mar - Tue, 31 Mar
PDX
Portland
LHR
London
฿22,330 Return, found 2 days ago
฿22,330
Return
found 2 days ago
Select Delta flight, departing Fri, 20 Mar from Portland to London, returning Tue, 31 Mar, priced at ฿22,330 found 2 days ago
Delta
Fri, 20 Mar - Tue, 31 Mar
PDX
Portland
LHR
London
฿22,875 Return, found 2 days ago
฿22,875
Return
found 2 days ago
Select Delta flight, departing Fri, 20 Mar from Portland to London, returning Tue, 31 Mar, priced at ฿22,875 found 2 days ago
Delta
Fri, 20 Mar - Tue, 31 Mar
PDX
Portland
LHR
London
฿23,120 Return, found 2 days ago
฿23,120
Return
found 2 days ago
Select Delta flight, departing Fri, 20 Mar from Portland to London, returning Tue, 31 Mar, priced at ฿23,120 found 2 days ago
United
Thu, 19 Mar - Mon, 30 Mar
PDX
Portland
LHR
London
฿23,820 Return, found 2 days ago
฿23,820
Return
found 2 days ago
Select United flight, departing Thu, 19 Mar from Portland to London, returning Mon, 30 Mar, priced at ฿23,820 found 2 days ago
Air Canada
Thu, 19 Mar - Mon, 30 Mar
PDX
Portland
LHR
London
฿24,490 Return, found 2 days ago
฿24,490
Return
found 2 days ago
Select Air Canada flight, departing Thu, 19 Mar from Portland to London, returning Mon, 30 Mar, priced at ฿24,490 found 2 days ago
Air Canada
Sun, 11 Jan - Sun, 18 Jan
PDX
Portland
LHR
London
฿25,565 Return, found 2 days ago
฿25,565
Return
found 2 days ago
Select Air Canada flight, departing Sun, 11 Jan from Portland to London, returning Sun, 18 Jan, priced at ฿25,565 found 2 days ago
KLM
Sun, 11 Jan - Sun, 18 Jan
PDX
Portland
LHR
London
฿27,705 Return, found 2 days ago
฿27,705
Return
found 2 days ago
Select KLM flight, departing Sun, 11 Jan from Portland to London, returning Sun, 18 Jan, priced at ฿27,705 found 2 days ago
British Airways
Sun, 11 Jan - Sun, 18 Jan
PDX
Portland
LHR
London
฿28,715 Return, found 2 days ago
฿28,715
Return
found 2 days ago
Select British Airways flight, departing Sun, 11 Jan from Portland to London, returning Sun, 18 Jan, priced at ฿28,715 found 2 days ago

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

April is typically the cheapest month to fly

From ฿15,957 - ฿43,896 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 ฿21,440. 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
฿21,440
Distance
7839 km

Book with confidence

Perfect flights from Portland to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Portland to London. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Portland Intl. to LON-All Airports ticket options cater to your travel preferences, with incredible one-way fares from ฿13,490 and roundtrip prices from ฿21,440. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at LON-All Airports and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in London.
Perfect flights from Portland to London
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