PWM - LIS

$612 Find Cheap Flights from Portland to Lisbon

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Lisbon departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Lisbon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Lisbon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Lisbon, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Portland to Lisbon (PWM-LIS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Lisbon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Lisbon

Mon, Dec 1 - Mon, Dec 8
United Airlines Logo
7:22 pm - 10:15 amPWM-LIS
9h 53m1 stop
United Airlines Logo
11:00 am - 9:35 pmLIS-PWM
39h 35m2 stops
$612United Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8
Air Canada Logo
6:00 am - 9:20 amPWM-LIS
46h 20m2 stops
Air Canada Logo
11:00 am - 11:14 pmLIS-PWM
41h 14m2 stops
$617Air Canada
Find Deal
Mon, Dec 1 - Mon, Dec 8
American Airlines Logo
1:06 pm - 9:05 amPWM-LIS
14h 59m1 stop
American Airlines Logo
11:05 am - 10:29 pmLIS-PWM
16h 24m1 stop
$628American Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
6:00 am - 9:20 amPWM-LIS
22h 20m2 stops
United Airlines Logo
11:25 am - 5:42 pmLIS-PWM
35h 17m2 stops
$871United Airlines
Find Deal
Mon, Sep 15 - Thu, Sep 25
United Airlines Logo
2:14 pm - 10:30 amPWM-LIS
15h 16m1 stop
United Airlines Logo
12:55 pm - 7:41 pmLIS-PWM
35h 46m2 stops
$878United Airlines
Find Deal
Mon, Sep 15 - Thu, Sep 25
United Airlines Logo
10:50 am - 10:30 amPWM-LIS
18h 40m2 stops
United Airlines Logo
12:55 pm - 7:41 pmLIS-PWM
35h 46m2 stops
$883United Airlines
Find Deal
Mon, Sep 15 - Thu, Sep 25
United Airlines Logo
7:26 pm - 10:30 amPWM-LIS
10h 04m1 stop
United Airlines Logo
12:20 pm - 7:41 pmLIS-PWM
12h 21m1 stop
$894United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
American Airlines Logo
6:00 am - 9:05 amPWM-LIS
22h 05m1 stop
American Airlines Logo
6:35 am - 10:43 pmLIS-PWM
21h 08m2 stops
$1,090American Airlines
Find Deal
Tue, Jul 29 - Tue, Aug 5
United Airlines Logo
2:08 pm - 10:30 amPWM-LIS
15h 22m1 stop
United Airlines Logo
6:45 am - 7:27 pmLIS-PWM
17h 42m2 stops
$1,093United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
Logo
2:14 pm - 11:05 amPWM-LIS
15h 51m2 stops
Logo
7:55 am - 11:01 pmLIS-PWM
20h 06m3 stops
$1,106
Find Deal
Useful Info

KAYAK's insights & trends for Portland to Lisbon flights

Get data-powered insights and trends into flights from Portland to Lisbon to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Portland to Lisbon?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Portland to Lisbon were found on United Airlines ($612) and Air Canada ($617).

Find deals

Good to know

Low seasonFebruary
High seasonApril
Cheapest flight$612
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Portland to Lisbon

When to book flights from Portland to Lisbon

Are your dates flexible? Find out the best times to travel from Portland to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Lisbon

  • What is the cheapest flight from Portland to Lisbon?

    In the last 3 days, the lowest price for a flight from Portland to Lisbon was $612 for a round-trip ticket.

  • Do I need a passport to fly between Portland and Lisbon?

    Yes

  • Which airports will I be using when flying from Portland to Lisbon?

    When flying out of Portland you will be using Portland. You will be landing at Lisbon, also known as Lisbon Humberto Delgado.

  • Which aircraft models fly most regularly from Portland to Lisbon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Lisbon?

    Star Alliance, and oneworld are the airline alliances operating flights between Portland and Lisbon, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Portland to Lisbon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Lisbon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Lisbon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lisbon from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Lisbon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lisbon with an airline and back to Portland with another airline. Booking your flights between Portland and LIS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Lisbon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lisbon from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Portland to Lisbon

 
See real verified KAYAK customer reviews for airlines flying from Portland to Lisbon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Lisbon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8801 reviews
7.0Entertainment
7.3Comfort
6.6Food
7.7Boarding
8.1Crew
Airline reviews

United airlines, mediocre at best. No issues , nothing great . Worked for me

4.0 OkayAnonymous, Jun 2025CLT - IAD
Read more United Airlines reviews

United airlines, mediocre at best. No issues , nothing great . Worked for me

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Everything you need to know for your flight from Portland to Lisbon

Information on your arrival and departure airports

Portland (PWM)
Lisbon (LIS)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.