$714 Find Cheap Flights from Portland to Portugal - Compare and Save

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Cheap Flights from Portland to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Lisbon
Lisbon2 stops$714
Porto
Porto1 stop$784
Lisbon
Lisbon2 stops$714
Porto
Porto1 stop$784

Book Cheap Portland to Portugal Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Portugal

Sun, Dec 6 - Tue, Dec 22
Delta Logo
6:00 am - 8:00 amPWM  Portland-LIS Lisbon Humberto Delgado
21h 00m1 stop New York John F Kennedy Intl
Delta Logo
5:30 am - 11:06 pmLIS  Lisbon Humberto Delgado-PWM Portland
22h 36m2 stops Paris Charles de Gaulle New York John F Kennedy Intl
$714Delta
Sun, Dec 6 - Tue, Dec 22
Delta Logo
6:12 am - 8:55 amPWM  Portland-LIS Lisbon Humberto Delgado
21h 43m2 stops New York LaGuardia Boston Logan Intl
Delta Logo
5:30 am - 11:06 pmLIS  Lisbon Humberto Delgado-PWM Portland
22h 36m2 stops Paris Charles de Gaulle New York John F Kennedy Intl
$714Delta
Sun, Dec 6 - Tue, Dec 22
United Airlines Logo
7:55 pm - 8:10 amPWM  Portland-LIS Lisbon Humberto Delgado
31h 15m1 stop Newark
United Airlines Logo
12:20 pm - 7:03 pmLIS  Lisbon Humberto Delgado-PWM Portland
11h 43m1 stop Washington, D.C. Dulles Intl
$718United Airlines
Tue, Jan 19 - Mon, Jan 25
United Airlines Logo
7:10 am - 8:10 amPWM  Portland-LIS Lisbon Humberto Delgado
20h 00m1 stop Newark
United Airlines Logo
6:00 am - 11:32 pmLIS  Lisbon Humberto Delgado-PWM Portland
46h 32m2 stops Munich Franz Josef Strauss Newark
$731United Airlines
Tue, Jan 19 - Mon, Jan 25
United Airlines Logo
7:50 pm - 9:20 amPWM  Portland-LIS Lisbon Humberto Delgado
32h 30m2 stops Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
6:00 am - 1:34 pmLIS  Lisbon Humberto Delgado-PWM Portland
60h 34m2 stops Munich Franz Josef Strauss Newark
$734United Airlines
Fri, Apr 9 - Fri, Apr 16
KLM Logo
2:35 pm - 10:55 amPWM  Portland-LIS Lisbon Humberto Delgado
15h 20m2 stops New York John F Kennedy Intl Amsterdam Schiphol
KLM Logo
11:55 am - 11:49 pmLIS  Lisbon Humberto Delgado-PWM Portland
16h 54m2 stops Amsterdam Schiphol New York John F Kennedy Intl
$779KLM
Fri, Feb 5 - Sat, Feb 13
United Airlines Logo
4:25 pm - 8:10 amPWM  Portland-LIS Lisbon Humberto Delgado
58h 45m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
11:20 am - 6:13 pmLIS  Lisbon Humberto Delgado-PWM Portland
35h 53m2 stops Toronto Pearson Intl Newark
$781United Airlines
Tue, Jan 19 - Mon, Jan 25
Delta Logo
2:35 pm - 8:00 amPWM  Portland-LIS Lisbon Humberto Delgado
12h 25m1 stop New York John F Kennedy Intl
Delta Logo
10:00 am - 11:49 pmLIS  Lisbon Humberto Delgado-PWM Portland
18h 49m1 stop New York John F Kennedy Intl
$781Delta
Sun, Dec 6 - Sun, Dec 13
United Airlines Logo
3:20 pm - 9:30 amPWM  Portland-OPO Porto
13h 10m1 stop Newark
United Airlines Logo
6:00 am - 11:24 pmOPO  Porto-PWM Portland
22h 24m2 stops Frankfurt am Main Newark
$784United Airlines
Sun, Dec 6 - Sun, Dec 13
United Airlines Logo
9:38 am - 9:30 amPWM  Portland-OPO Porto
18h 52m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
6:00 am - 11:24 pmOPO  Porto-PWM Portland
22h 24m2 stops Frankfurt am Main Newark
$789United Airlines
Booking Insights

Price, demand and travel trends for Portland to Portugal flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Portland to Portugal right now?

The cheapest fares from Portland to Portugal on KAYAK in the last week were to Lisbon Humberto Delgado (LIS) from $714 round-trip, and to Porto (OPO) from $784 round-trip.

Which airport in Portugal is the cheapest to fly to from Portland?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Portugal are:

• Lisbon Humberto Delgado (LIS) from $977
• Porto (OPO) from $1,551

What's the cheapest time of day to fly from Portland to Portugal?

Data from the past 12 months shows it's cheapest to fly to Portugal during the afternoon with average prices of $1,081. The morning is the most expensive time to fly, with average prices of $1,561.

Find deals

Key details for Portland to Portugal flights

Low season

April

Cheapest flight

$714
Beat the crowds with an average 83% drop in travelers.
The most popular month to fly with an average 29% increase in travelers.
Round-trip flight from Portland to Lisbon

Your Portland to Portugal flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Portland to Portugal?

    Yes. Fares from Portland to Portugal are low right now. As a rule of thumb, a round-trip under $722 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Portland to Portugal?

    Over the past 12 months, round-trip fares from Portland to Portugal have ranged from $722 to $1,551.

  • Which cabin classes are available on flights from Portland to Portugal?

    On flights from Portland to Portugal you can only book Economy Class.

  • What are some popular landmarks in Portugal?

    KAYAK travelers' favorite landmarks in Portugal include:

    • Chiado
    • Ribeira Square
    • Avenida dos Aliados
    • Commerce Square

Your guide to booking Portland to Portugal flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Tuesday is usually the cheapest. Flights on Monday cost about 50% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Lisbon Humberto Delgado (LIS) is the cheapest airport to fly into from Portland. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Lisbon, which is the most popular destination in Portugal. From there, it's easy to continue on to other popular destinations such as Porto, Albufeira and Funchal.

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.
7.3
United AirlinesOverall score based on 10422 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
6.7Food
8.1Crew
Airline reviews

The guy in front of me was talking constantly, even when the pilot was making announcements. I found this very disrespectful to the pilot and to others.

4.0 Okay72Yonatan, Oct 2026
Read more United Airlines reviews

The guy in front of me was talking constantly, even when the pilot was making announcements. I found this very disrespectful to the pilot and to others.

The couple in front of me were constantly talking over the announcement from the captain and this was annoying me.

It was great. I really love the app. User friendly and very comprehensive when it comes to having information at my fingertips tips related my travel.

Delay of two hours due to some mechanical issue. Staff was wonderful and the pilot did let us know what was going on.

Improve the food offerings and cabin seating. My wife would prefer to fly another airline, even with a connection for a more comfortable trip. A 737-8 should not be scheduled for a 6 hour segment, which turned into 7.5 hours due to the origin ground delay.

OK, I don’t expect much from coach class. Everything basically is pretty lousy. But at least I expect my bloody luggage to get from A to B. Tap Airlines lost my luggage and it has been more than 24 hours in Lisbon and they still have not located my luggage. On top of that, they are incredibly unhelpful. They feel actually dismissive. This lousy customer service.

Both my flight where delayed Had 25min to make it to my transfer flight

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

They changed my flight 5 hours before it took off and changed my connecting airport messing up my entire 1st day in Japan.

More options for your flight from Portland to Portugal

Complete your trip to Portugal with a hotel stay or car rental

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