$765 Find Cheap Flights from Portland to Portugal

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 Portugal departing on 10/12. 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.
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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
Lisbon2 stops$765
Porto
Porto2 stops$920
Ponta Delgada
Ponta Delgada2 stops$979
Lisbon
Lisbon2 stops$765
Porto
Porto2 stops$920
Ponta Delgada
Ponta Delgada2 stops$979

Cheap Flight Deals from Portland to Portugal (PWM-PT0)

 
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.

Recent round-trip flight deals from Portland to Portugal

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Portland to Portugal.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
2:22 pm - 9:20 amPWM-LIS
37h 58m2 stops
United Airlines Logo
12:55 pm - 9:44 pmLIS-PWM
37h 49m2 stops
$765United Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
 Logo
5:35 pm - 8:20 amPWM-LIS
9h 45m1 stop
 Logo
12:55 pm - 1:41 pmLIS-PWM
29h 46m2 stops
Sun, Oct 12 - Sun, Oct 19
Turkish Airlines Logo
7:30 am - 3:50 pmPWM-OPO
27h 20m2 stops
Turkish Airlines Logo
5:10 pm - 1:16 pmOPO-PWM
49h 06m2 stops
$920Turkish Airlines
Find Deal
Fri, Sep 19 - Sun, Oct 5
United Airlines Logo
5:35 pm - 2:05 pmPWM-LIS
15h 30m2 stops
United Airlines Logo
2:20 pm - 6:13 pmLIS-PWM
31h 53m2 stops
$926United Airlines
Find Deal
Mon, Oct 13 - Fri, Oct 31
KLM Logo
6:30 am - 8:00 amPWM-LIS
20h 30m1 stop
KLM Logo
9:55 am - 11:31 pmLIS-PWM
18h 36m1 stop
$962KLM
Find Deal
Sun, Oct 12 - Sun, Oct 19
Delta Logo
2:30 pm - 2:35 pmPWM-LIS
19h 05m2 stops
Delta Logo
12:45 pm - 10:53 amLIS-PWM
27h 08m2 stops
$1,016Delta
Find Deal
Thu, May 15 - Wed, May 28
Air Canada Logo
6:20 am - 11:30 amPWM-LIS
24h 10m2 stops
Air Canada Logo
12:55 pm - 11:27 pmLIS-PWM
39h 32m2 stops
$1,201Air Canada
Find Deal
Sat, Jun 14 - Sat, Jun 21
Air Canada Logo
10:40 am - 9:20 amPWM-LIS
17h 40m3 stops
Air Canada Logo
7:10 am - 11:17 pmLIS-PWM
20h 07m3 stops
$1,240Air Canada
Find Deal
Mon, Oct 13 - Fri, Oct 31
Delta Logo
2:35 pm - 2:35 pmPWM-LIS
19h 00m2 stops
Delta Logo
10:00 am - 11:31 pmLIS-PWM
17h 31m1 stop
$1,350Delta
Find Deal
Mon, Oct 13 - Fri, Oct 31
KLM Logo
2:34 pm - 8:00 amPWM-LIS
12h 26m1 stop
KLM Logo
10:00 am - 12:46 amLIS-PWM
19h 46m1 stop
$1,493KLM
Find Deal
Sat, Jun 14 - Sat, Jun 21
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 United Airlines ($765) and Turkish Airlines ($920).


Good to know

Low seasonFebruary
High seasonApril
Cheapest flight$765
Best time to beat the crowds with an average 7% 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.

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 8696 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
Airline reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

10.0 ExcellentAnonymous, Apr 2025SFO - HKG
Read more United Airlines reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

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

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