$361 Find Cheap Flights from Portland to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Portugal departing on 11/29. 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

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Best Portugal Flight Deals from Portland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$605
Porto
Porto2 stops$1,066
Ponta Delgada
Ponta Delgada2 stops$1,974
Lisbon
Lisbon1 stop$605
Porto
Porto2 stops$1,066
Ponta Delgada
Ponta Delgada2 stops$1,974

Cheap Flights from Portland to Portugal

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Portugal 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 Portugal

Mon, Dec 1 - Mon, Dec 8
KLM Logo
10:00 am - 8:00 amPWM-LIS
17h 00m1 stop
KLM Logo
3:25 pm - 11:31 pmLIS-PWM
37h 06m2 stops
$605KLM
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Mon, Dec 1 - Mon, Dec 8
KLM Logo
10:00 am - 8:00 amPWM-LIS
17h 00m1 stop
KLM Logo
3:25 pm - 11:31 pmLIS-PWM
37h 06m2 stops
$607KLM
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Mon, Dec 1 - Mon, Dec 8
United Airlines Logo
9:30 am - 8:55 amPWM-LIS
42h 25m2 stops
United Airlines Logo
11:20 am - 6:54 pmLIS-PWM
36h 34m2 stops
$619United Airlines
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Mon, Dec 1 - Mon, Dec 8
United Airlines Logo
10:45 am - 9:20 amPWM-LIS
17h 35m2 stops
United Airlines Logo
11:20 am - 6:13 pmLIS-PWM
35h 53m2 stops
$620United Airlines
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Mon, Dec 1 - Mon, Dec 8
KLM Logo
10:00 am - 8:00 amPWM-LIS
17h 00m1 stop
KLM Logo
10:00 am - 11:31 pmLIS-PWM
18h 31m1 stop
$627KLM
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Sat, Oct 4 - Wed, Oct 22
Air Canada Logo
8:00 am - 9:20 amPWM-LIS
44h 20m2 stops
Air Canada Logo
12:50 pm - 6:23 pmLIS-PWM
34h 33m2 stops
$755Air Canada
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Sat, Oct 4 - Wed, Oct 22
Turkish Airlines Logo
7:09 am - 3:30 pmPWM-LIS
51h 21m2 stops
Turkish Airlines Logo
5:55 am - 10:01 pmLIS-PWM
21h 06m2 stops
$774Turkish Airlines
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Tue, Jul 29 - Tue, Aug 5
TAP AIR PORTUGAL Logo
2:19 pm - 10:05 amPWM-LIS
14h 46m1 stop
TAP AIR PORTUGAL Logo
5:00 pm - 12:17 amLIS-PWM
12h 17m1 stop
$811TAP AIR PORTUGAL
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Wed, Aug 6 - Wed, Aug 13
TAP AIR PORTUGAL Logo
2:19 pm - 10:05 amPWM-LIS
14h 46m1 stop
TAP AIR PORTUGAL Logo
5:00 pm - 12:17 amLIS-PWM
12h 17m1 stop
$849TAP AIR PORTUGAL
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Sat, Oct 4 - Wed, Oct 22
Air Canada Logo
10:40 am - 10:45 amPWM-LIS
19h 05m3 stops
Air Canada Logo
7:55 am - 11:13 pmLIS-PWM
20h 18m3 stops
$1,463Air Canada
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Useful Info

KAYAK's insights & trends for Portland to Portugal flights

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

Which airlines provide the cheapest flights from Portland to Portugal?

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 Portugal were found on KLM ($605) and United Airlines ($619).

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Good to know

Low seasonFebruary
High seasonApril
Cheapest flight$361
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Portland to Lisbon

FAQs - booking Portugal flights

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

    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 Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Portugal 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 Portugal?

    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 from Portland to Portugal with an airline and back with another airline.

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

    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 from Portland to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally at night, when round-trip flights cost $722 on average. Morning departures are around 19% cheaper than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,096.

Reviews of the top airline flying from Portland to Portugal

 
Need help choosing which airline to fly with from Portland to Portugal? 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 8846 reviews
8.1Crew
6.6Food
7.7Boarding
7.3Comfort
7.0Entertainment
Airline reviews

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

4.0 OkayJeanette, Jul 2025IAD - TPA
Read more United Airlines reviews

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

The food should improve! And The flight should leave on time and not make the traveler wait.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

We love united ! We would like to acknowledge Aimee in the lounge near gate 130

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

Information on your arrival and departure airports

Portland (PWM)

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