Cheap Flights from Portland to Lisbon

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Flight deals from Portland to Lisbon

Looking for a cheap last-minute deal or the best return flight from Portland Airport to Lisbon Airport? If you want to travel next month, return fares start from $1,673. Find the lowest prices on one-way and return tickets right here.

Lisbon.$1,305 per passenger.Departing Tue, 1 Dec, returning Tue, 8 Dec.Return flight with United.Outbound indirect flight with United, departs from Portland on Tue, 1 Dec, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Tue, 8 Dec, arriving in Portland.Price includes taxes and charges.From $1,305, select.

Lisbon.$1,351 per passenger.Departing Tue, 27 Oct, returning Tue, 3 Nov.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Portland on Tue, 27 Oct, arriving in Lisbon.Inbound indirect flight with KLM, departs from Lisbon on Tue, 3 Nov, arriving in Portland.Price includes taxes and charges.From $1,351, select.

Lisbon.$1,353 per passenger.Departing Wed, 10 Feb, returning Wed, 17 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 10 Feb, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Wed, 17 Feb, arriving in Portland.Price includes taxes and charges.From $1,353, select.

Lisbon.$1,365 per passenger.Departing Sun, 1 Nov, returning Wed, 25 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Sun, 1 Nov, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Wed, 25 Nov, arriving in Portland.Price includes taxes and charges.From $1,365, select.

Lisbon.$1,376 per passenger.Departing Wed, 27 Jan, returning Wed, 3 Feb.Return flight with British Airways and Iberia.Outbound indirect flight with British Airways, departs from Portland on Wed, 27 Jan, arriving in Lisbon.Inbound indirect flight with Iberia, departs from Lisbon on Wed, 3 Feb, arriving in Portland.Price includes taxes and charges.From $1,376, select.

Lisbon.$1,416 per passenger.Departing Tue, 5 Jan, returning Tue, 12 Jan.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Portland on Tue, 5 Jan, arriving in Lisbon.Inbound indirect flight with KLM, departs from Lisbon on Tue, 12 Jan, arriving in Portland.Price includes taxes and charges.From $1,416, select.

Lisbon.$1,427 per passenger.Departing Wed, 21 Oct, returning Wed, 28 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Wed, 21 Oct, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Wed, 28 Oct, arriving in Portland.Price includes taxes and charges.From $1,427, select.

Lisbon.$1,444 per passenger.Departing Tue, 30 Mar, returning Tue, 13 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Tue, 30 Mar, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Tue, 13 Apr, arriving in Portland.Price includes taxes and charges.From $1,444, select.

Lisbon.$1,453 per passenger.Departing Wed, 3 Mar, returning Sat, 13 Mar.Return flight with KLM.Outbound indirect flight with KLM, departs from Portland on Wed, 3 Mar, arriving in Lisbon.Inbound indirect flight with KLM, departs from Lisbon on Sat, 13 Mar, arriving in Portland.Price includes taxes and charges.From $1,453, select.

Lisbon.$1,455 per passenger.Departing Wed, 25 Nov, returning Wed, 2 Dec.Return flight with British Airways and Iberia.Outbound indirect flight with British Airways, departs from Portland on Wed, 25 Nov, arriving in Lisbon.Inbound indirect flight with Iberia, departs from Lisbon on Wed, 2 Dec, arriving in Portland.Price includes taxes and charges.From $1,455, select.

Lisbon.$1,501 per passenger.Departing Tue, 29 Sep, returning Tue, 6 Oct.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Portland on Tue, 29 Sep, arriving in Lisbon.Inbound indirect flight with Finnair, departs from Lisbon on Tue, 6 Oct, arriving in Portland.Price includes taxes and charges.From $1,501, select.

Lisbon.$1,504 per passenger.Departing Tue, 22 Sep, returning Tue, 29 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Tue, 22 Sep, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Tue, 29 Sep, arriving in Portland.Price includes taxes and charges.From $1,504, select.

Lisbon.$1,525 per passenger.Departing Wed, 30 Dec, returning Wed, 6 Jan.Return flight with Air France.Outbound indirect flight with Air France, departs from Portland on Wed, 30 Dec, arriving in Lisbon.Inbound indirect flight with Air France, departs from Lisbon on Wed, 6 Jan, arriving in Portland.Price includes taxes and charges.From $1,525, select.

Lisbon.$1,553 per passenger.Departing Wed, 12 May, returning Wed, 19 May.Return flight with Finnair and British Airways.Outbound indirect flight with Finnair, departs from Portland on Wed, 12 May, arriving in Lisbon.Inbound indirect flight with British Airways, departs from Lisbon on Wed, 19 May, arriving in Portland.Price includes taxes and charges.From $1,553, select.

Lisbon.$1,561 per passenger.Departing Fri, 30 Apr, returning Sat, 8 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Fri, 30 Apr, arriving in Lisbon.Inbound indirect flight with Delta, departs from Lisbon on Sat, 8 May, arriving in Portland.Price includes taxes and charges.From $1,561, select.

Lisbon.$1,606 per passenger.Departing Tue, 11 Aug, returning Thu, 10 Sep.Return flight with United.Outbound indirect flight with United, departs from Portland on Tue, 11 Aug, arriving in Lisbon.Inbound indirect flight with United, departs from Lisbon on Thu, 10 Sep, arriving in Portland.Price includes taxes and charges.From $1,606, select.

Find the cheapest month to fly from Portland to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Lisbon flights are currently cheapest in December.

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Portland to Lisbon: Alternative routes

Compare routes from Portland to Lisbon below. You may find an airport to fly into that's cheaper, faster, or easier than Lisbon.

Lisbon

8km from central Lisbon

ClosestCheapest

from $1,305

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Cascais Municipal Aerodrome

19km from central Lisbon

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Portland to Lisbon: Flight information

The things to know before you go.

Cheapest flight found	$1,305
Cheapest month to fly	December

Finding cheap flights from Portland to Lisbon: Frequently asked questions

How much are return flights from Portland to Lisbon?

The best price we found for a return flight from Portland to Lisbon is $1,305. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Portland to Lisbon?

Currently, there are no airlines that fly direct from Portland to Lisbon. But we found flights with one or more stops from $1,305.

How many flights are there a week from Portland to Lisbon?

As of June 2026, there are no flights flying from Portland to Lisbon.

When is the cheapest time to fly from Portland to Lisbon?

The cheapest month to fly from Portland to Lisbon is usually December.

Which upcoming date is cheapest to fly from Portland Airport to Lisbon Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Lisbon Airport on Tuesday, 1 December 2026.

Can I get a direct flight from Portland Airport to Lisbon Airport?

No airlines currently offer direct flights between Portland Airport and Lisbon Airport. Most routes have one or more stops.

How can I find the best flight deal to Lisbon?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Lisbon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Lisbon?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Portland Airport to Lisbon with?

Currently, United offers the cheapest flight tickets to Lisbon.

Flying from Portland Airport (PDX) to Lisbon Airport (LIS): what you need to know

Lisbon's timezone is UTC+0, making Lisbon eight hours ahead of Portland.
Give yourself plenty of time to make your PDX to LIS flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.
You'll likely experience longer queues in popular months such as July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a smart move.
We make it a breeze to book a flight with a stopover. To see all your options for tickets from Portland Airport to Lisbon Airport, deselect 'Direct flights only.' Then, choose a flight offering a stop long enough to visit the city of your choice. Top stopovers between PDX and LIS include:
- London Heathrow Airport
- Amsterdam Schiphol Airport
- New York Newark Airport

How to find the cheapest flights from Portland Airport (PDX) to Lisbon Airport (LIS)

$623 is the lowest price for a one-way Portland Airport to Lisbon Airport flight. A return flight starts at $1,305. These prices may change depending on demand and availability.
To pick up cheap tickets from PDX to LIS, book as early as you can. Airlines typically offer the most competitive fares when flights are first released.
The 'Whole month' search function shows you the cheapest flights from Portland Airport to Lisbon Airport across every month. It's a great way to find a bargain if your dates are flexible.
Picking up cheap flights from PDX to LIS is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as fares go down.
Tailor your flights using filters. Select your departure and arrival times, total journey duration and airlines. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Portland Airport to Lisbon Airport.

Handy information about Portland Airport (PDX)

PDX is located at 7000 NE Airport Way.
Portland Airport scores high marks for on-time performance. 83% of flights that depart PDX reach their destination without delay.
Portland Airport is around 19 kilometres from central Portland. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on the traffic.
Planning to catch public transport? Expect a journey time of around 40 minutes.
Get your break off to a hassle-free start by staying near PDX. Whether you have an early flight from Portland Airport to Lisbon Airport or just don't want to be rushed, these hotels have you covered:

Arriving at Lisbon Airport (LIS)

Consider staying in a hotel close to LIS if you're on a late Portland Airport to Lisbon Airport flight. Select one of these accommodation options and skip the long transfer:
Hit the road running by picking up a Lisbon Airport rental car. Grab a set of wheels from Klass Wagen, Goldcar or OK Mobility and explore beyond Lisbon's main sights.
Get the best deal by reserving your ride from Lisbon Airport around two weeks before your trip.

When to fly to Lisbon Airport (LIS)

It's time to choose your travel dates for your flight from Portland Airport to Lisbon Airport. August is the busiest month to head to Lisbon. If you want a quieter vibe, go in March.
Before locking in your flight from Portland Airport to Lisbon Airport, think about the kind of weather you like. August is the warmest month in Lisbon, with temperatures ranging from 16ºC to 29ºC.
Search for cheap tickets from PDX to LIS in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 8ºC and 16ºC on average.

Explore more of Portugal

Lisbon is always a good idea, but there are so many other parts of Portugal just waiting to be discovered. About 274 kilometres north of Lisbon, a visit to Porto will keep you on the go. Start with popular sights like Ribeira District, Rio Douro and Livraria Lello.
Around 8 kilometres north-west of Lisbon, Amadora is another essential stop in Portugal. Experience the best of this destination with a visit to Roman Villa, Park Fantasia and Palácio dos Condes da Lousã.