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£270 Cheap Flights from Portland (PDX) to Lisbon (LIS)

View £270 flight on Sun, 14 Feb 2027Opens 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 £270 for one-way flights and £552 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 18 Nov - Wed, 25 Nov
PDX
Portland
LIS
Lisbon
£552 Return, found 1 day ago
£552
Return
found 1 day ago
Select United flight, departing Wed, 18 Nov from Portland to Lisbon, returning Wed, 25 Nov, priced at £552 found 1 day ago
KLM
Wed, 4 Nov - Wed, 11 Nov
PDX
Portland
LIS
Lisbon
£554 Return, found 1 day ago
£554
Return
found 1 day ago
Select KLM flight, departing Wed, 4 Nov from Portland to Lisbon, returning Wed, 11 Nov, priced at £554 found 1 day ago
Delta
Wed, 18 Nov - Wed, 25 Nov
PDX
Portland
LIS
Lisbon
£554 Return, found 1 day ago
£554
Return
found 1 day ago
Select Delta flight, departing Wed, 18 Nov from Portland to Lisbon, returning Wed, 25 Nov, priced at £554 found 1 day ago
Air Canada
Wed, 11 Nov - Wed, 18 Nov
PDX
Portland
LIS
Lisbon
£555 Return, found 1 day ago
£555
Return
found 1 day ago
Select Air Canada flight, departing Wed, 11 Nov from Portland to Lisbon, returning Wed, 18 Nov, priced at £555 found 1 day ago
Air Canada
Wed, 27 Jan - Wed, 3 Feb
PDX
Portland
LIS
Lisbon
£555 Return, found 1 day ago
£555
Return
found 1 day ago
Select Air Canada flight, departing Wed, 27 Jan from Portland to Lisbon, returning Wed, 3 Feb, priced at £555 found 1 day ago
KLM
Sun, 24 Jan - Mon, 1 Feb
PDX
Portland
LIS
Lisbon
£558 Return, found 2 hours ago
£558
Return
found 2 hours ago
Select KLM flight, departing Sun, 24 Jan from Portland to Lisbon, returning Mon, 1 Feb, priced at £558 found 2 hours ago
Lufthansa
Tue, 10 Nov - Tue, 17 Nov
PDX
Portland
LIS
Lisbon
£562 Return, found 1 day ago
£562
Return
found 1 day ago
Select Lufthansa flight, departing Tue, 10 Nov from Portland to Lisbon, returning Tue, 17 Nov, priced at £562 found 1 day ago
Air France
Wed, 3 Feb - Wed, 10 Feb
PDX
Portland
LIS
Lisbon
£563 Return, found 1 day ago
£563
Return
found 1 day ago
Select Air France flight, departing Wed, 3 Feb from Portland to Lisbon, returning Wed, 10 Feb, priced at £563 found 1 day ago
American Airlines
Wed, 18 Nov - Wed, 25 Nov
PDX
Portland
LIS
Lisbon
£563 Return, found 1 day ago
£563
Return
found 1 day ago
Select American Airlines flight, departing Wed, 18 Nov from Portland to Lisbon, returning Wed, 25 Nov, priced at £563 found 1 day ago
British Airways
Wed, 4 Nov - Wed, 11 Nov
PDX
Portland
LIS
Lisbon
£564 Return, found 1 day ago
£564
Return
found 1 day ago
Select British Airways flight, departing Wed, 4 Nov from Portland to Lisbon, returning Wed, 11 Nov, priced at £564 found 1 day ago

Frequently asked questions

How much does a flight from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) cost?
You can find one-way and return flights from PDX to LIS with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when PDX to LIS ticket fares go up or down.
What is the cheapest month to fly from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
February is typically the cheapest month to fly from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado), with average return fares around £434. February often sees lower prices because it falls outside of peak holiday seasons, when travel demand tends to decrease. Other cheap months to fly from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) include January and November.
Which airlines fly direct from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
Enter PDX to LIS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
Finnair is one of the cheapest airlines offering connecting return flights from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado), with prices starting from around £786 for flights that can be booked for departure within the next year. These flights typically include a layover in Los Angeles Intl. (LAX). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
To find a cheap flight from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
The cheapest months to fly from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) are typically January and February, with return flights averaging around £434. These months fall outside the peak travel season, which often means fewer crowds and more relaxed travel experiences. While these might be the cheapest times, it's always a good idea to check for flight options that suit your schedule.
How many flights per day from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
There are approximately 62 connecting flights per day from Portland International (PDX) to Humberto Delgado (LIS). Some common connection points include O'Hare International (ORD), Seattle - Tacoma International (SEA), and San Francisco International (SFO).
What is the earliest flight from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
The earliest flight from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) typically departs around 12:30 AM local time. This service is operated by Delta and is seasonal, active only in December. An early departure like this can be great if you want to maximise your time in Lisbon, allowing you to arrive early and start exploring. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
You'll find the most flights from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) on a Wednesday, with around 71 flights available. This gives you a good selection of options for your journey. Major airlines on this route include United, Delta, and Alaska Airlines. Flight schedules are fairly consistent throughout the week, with Wednesdays offering only slightly more flights than other days.
What are the most popular departure times for flights from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
The most popular departure times for flights from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) are in the morning, between 6am and 9am. Many major carriers, including United, Delta and American Airlines, offer flights during this window. Many travellers prefer these times as they allow for an early start to your journey, getting you to your destination with plenty of time left in the day.
How long does it take to fly from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
There are no nonstop flights from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado). The shortest flights typically involve one stop, taking around 17 hours to cover the approximately 8,530 kilometers. Flights with two or more stops usually take longer, averaging about 20 hours. Keep in mind that actual travel times can vary due to factors like layover duration, routing, and weather conditions.
Can you fly business or first class from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
Yes, you can fly business class from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado). Airlines that offer business class service on this route include:
  • Alaska Airlines
  • British Airways
  • Icelandair
  • Condor
  • KLM
  • Delta
  • United
  • American Airlines
How do I earn miles on a Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) flight with Expedia?
It's easy to earn miles on a Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Lisbon (LIS) from Portland, OR (PDX)?
If you're planning to travel to Lisbon from Portland Intl. (PDX), you can fly directly into Humberto Delgado (LIS). Some flights may connect through major hubs like O'Hare Intl. (ORD), Dallas-Fort Worth Intl. (DFW), or San Francisco Intl. (SFO) before reaching Lisbon. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) at the last minute?
Typically, booking a last minute flight from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) flight and hotel package?
Securing a Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado)?
If you booked your Portland, OR (PDX-Portland Intl.) to Lisbon (LIS-Humberto Delgado) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Portland Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air Europa, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Swiss International Air Lines, United, Virgin Atlantic
Return price
£552
Distance
8478 km

Book with confidence

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 £552 and range up to £564.  

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.  

Compare flights from Portland to Lisbon easily and book with confidence

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*Available to Expedia members.