$494 Find Cheap Flights from Portland to Portugal - Compare and Save

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 9/18. 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, 0 bags

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Cheap Flights from Portland to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$715
Porto
Porto1 stop$956
Ponta Delgada
Ponta Delgada2 stops$1,070
Lisbon
Lisbon1 stop$715
Porto
Porto1 stop$956
Ponta Delgada
Ponta Delgada2 stops$1,070

Book Cheap Portland to Portugal Plane Tickets

 
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

Wed, Oct 14 - Wed, Nov 11
Delta Logo
4:15 pm - 8:00 am
PWM
-
LIS
10h 45m
1 stop
Delta Logo
5:00 am - 11:49 pm
LIS
-
PWM
23h 49m
2 stops
$715Delta
Wed, Oct 14 - Wed, Nov 11
Delta Logo
4:15 pm - 8:00 am
PWM
-
LIS
10h 45m
1 stop
Delta Logo
10:00 am - 11:49 pm
LIS
-
PWM
18h 49m
1 stop
$726Delta
Sun, Nov 8 - Wed, Nov 11
Delta Logo
10:00 am - 11:20 am
PWM
-
LIS
20h 20m
2 stops
Delta Logo
5:00 am - 11:49 pm
LIS
-
PWM
23h 49m
2 stops
$730Delta
Sun, Nov 8 - Wed, Nov 11
Air France Logo
2:35 pm - 8:00 am
PWM
-
LIS
12h 25m
1 stop
Air France Logo
10:00 am - 11:49 pm
LIS
-
PWM
18h 49m
1 stop
$737Air France
Fri, Oct 2 - Fri, Oct 30
United Airlines Logo
5:15 am - 8:20 am
PWM
-
LIS
22h 05m
2 stops
United Airlines Logo
5:00 am - 2:20 pm
LIS
-
PWM
37h 20m
2 stops
$839United Airlines
Fri, Oct 2 - Fri, Oct 30
United Airlines Logo
6:00 am - 8:20 am
PWM
-
LIS
21h 20m
1 stop
United Airlines Logo
5:00 am - 2:20 pm
LIS
-
PWM
37h 20m
2 stops
$840United Airlines
Fri, Oct 2 - Fri, Oct 30
United Airlines Logo
6:00 am - 8:20 am
PWM
-
LIS
21h 20m
1 stop
United Airlines Logo
10:15 am - 11:23 pm
LIS
-
PWM
17h 08m
1 stop
$852United Airlines
Wed, Jul 22 - Thu, Aug 6
Turkish Airlines Logo
2:40 pm - 3:45 pm
PWM
-
OPO
44h 05m
2 stops
Turkish Airlines Logo
4:40 pm - 12:25 am
OPO
-
PWM
36h 45m
2 stops
$1,025Turkish Airlines
Wed, Oct 14 - Wed, Nov 11
Multiple Airlines Logo
6:00 am - 6:20 am
PWM
-
PDL
20h 20m
2 stops
Multiple Airlines Logo
7:25 pm - 11:43 pm
PDL
-
PWM
32h 18m
2 stops
$1,070Multiple Airlines
Sun, Sep 20 - Sat, Sep 26
Multiple Airlines Logo
6:30 am - 6:15 pm
PWM
-
OPO
30h 45m
3 stops
Multiple Airlines Logo
9:15 pm - 11:17 pm
OPO
-
PWM
31h 02m
3 stops
$1,555Multiple Airlines
Booking Insights

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.

What is the cheapest month to fly from Portland to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Portugal is May, when tickets cost $0 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $1,131 and $1,116 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$494
Best time to beat the crowds with an average 49% drop in price.
Most popular time to fly and prices are also 49% lower on average.
Flight from Portland to Ponta Delgada

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.

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

Information on your arrival and departure airports

Portland (PWM)