£294 Cheap Flights from Portland (PDX) to Lisbon (LIS)

View £294 flight on Wed, 22 Oct 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Humberto Delgado Airport (LIS)

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Cheap Flights from Portland (PDX) to Lisbon (LIS)

Prices were available within the past 7 days and start at £294 for one-way flights and £429 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, 18 Nov - Wed, 26 Nov
PDX
Portland
LIS
Lisbon
£429 Return, found 3 days ago
£429
Return
found 3 days ago
Select Air Canada flight, departing Tue, 18 Nov from Portland to Lisbon, returning Wed, 26 Nov, priced at £429 found 3 days ago
Air Canada
Thu, 8 Jan - Fri, 16 Jan
PDX
Portland
LIS
Lisbon
£430 Return, found 5 days ago
£430
Return
found 5 days ago
Select Air Canada flight, departing Thu, 8 Jan from Portland to Lisbon, returning Fri, 16 Jan, priced at £430 found 5 days ago
Air Canada
Wed, 12 Nov - Thu, 20 Nov
PDX
Portland
LIS
Lisbon
£432 Return, found 3 days ago
£432
Return
found 3 days ago
Select Air Canada flight, departing Wed, 12 Nov from Portland to Lisbon, returning Thu, 20 Nov, priced at £432 found 3 days ago
Air Canada
Wed, 12 Nov - Wed, 19 Nov
PDX
Portland
LIS
Lisbon
£434 Return, found 6 days ago
£434
Return
found 6 days ago
Select Air Canada flight, departing Wed, 12 Nov from Portland to Lisbon, returning Wed, 19 Nov, priced at £434 found 6 days ago
British Airways
Sun, 11 Jan - Mon, 19 Jan
PDX
Portland
LIS
Lisbon
£439 Return, found 5 days ago
£439
Return
found 5 days ago
Select British Airways flight, departing Sun, 11 Jan from Portland to Lisbon, returning Mon, 19 Jan, priced at £439 found 5 days ago
American Airlines
Tue, 6 Jan - Tue, 13 Jan
PDX
Portland
LIS
Lisbon
£441 Return, found 2 days ago
£441
Return
found 2 days ago
Select American Airlines flight, departing Tue, 6 Jan from Portland to Lisbon, returning Tue, 13 Jan, priced at £441 found 2 days ago
Iberia
Tue, 20 Jan - Wed, 28 Jan
PDX
Portland
LIS
Lisbon
£445 Return, found 5 days ago
£445
Return
found 5 days ago
Select Iberia flight, departing Tue, 20 Jan from Portland to Lisbon, returning Wed, 28 Jan, priced at £445 found 5 days ago
Lufthansa
Wed, 14 Jan - Thu, 22 Jan
PDX
Portland
LIS
Lisbon
£450 Return, found 5 days ago
£450
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 14 Jan from Portland to Lisbon, returning Thu, 22 Jan, priced at £450 found 5 days ago
Swiss International Air Lines
Tue, 13 Jan - Wed, 21 Jan
PDX
Portland
LIS
Lisbon
£452 Return, found 5 days ago
£452
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Tue, 13 Jan from Portland to Lisbon, returning Wed, 21 Jan, priced at £452 found 5 days ago
Scandinavian Airlines
Tue, 20 Jan - Wed, 28 Jan
PDX
Portland
LIS
Lisbon
£467 Return, found 5 days ago
£467
Return
found 5 days ago
Select Scandinavian Airlines flight, departing Tue, 20 Jan from Portland to Lisbon, returning Wed, 28 Jan, priced at £467 found 5 days ago

Find the cheapest month to fly from Portland (PDX) to Lisbon (LIS)

February is typically the cheapest month to fly

From £367 - £712 per traveller.

Graph displaying average flight prices per month

Flight from Portland to Lisbon route information
Origin airport
Portland Intl.
Destination airport
Humberto Delgado
Airlines serving
Air Canada, Air Europa, Air France, British Airways, Brussels Airlines, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Virgin Atlantic
Return price
£429
Distance
8478 km

Compare flights from Portland to Lisbon easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Portland to Lisbon. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Humberto Delgado in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Portland Intl. to Humberto Delgado.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Portland Intl. (PDX) to Humberto Delgado (LIS)

The easiest way to view the best deals on flights from Portland to Lisbon today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Portland Intl. to Humberto Delgado start at just £429 and range up to £467.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Portland and Lisbon
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Portland to Lisbon flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Portland Intl. to Humberto Delgado for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from PDX to Humberto Delgado Airport (LIS)?
If you're travelling between PDX Airport and Lisbon Airport, round-trip flights start from £429. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book now and save yourself money and time. 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 to Humberto Delgado Airport (LIS)?
Most flights can be cancelled online, but each airline has different terms and conditions. If you do decide to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from PDX to Lisbon Airport 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 Lisbon Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PDX to Lisbon Airport?
You'll have 8,500 kilometres to cover on the long-haul Portland to Lisbon District route. Wear layers of comfy clothes and consider taking a sleep mask and earplugs.
Which airlines fly direct from Portland Intl. Airport (PDX) to Lisbon/Portela Airport?
Flying nonstop between PDX Airport and Lisbon Airport isn't possible at present. However, you'll still be able to book a flight to Lisbon District with at least one stop.
Are Portland Intl. Airport (PDX) to Humberto Delgado Airport (LIS) flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally nab a bargain, with some super cheap airfares from Portland Intl. Airport (PDX) to LIS surfacing a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals continually --- as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines quote prices that far in advance.

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