HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$317+ Cheap flights from Portland (PDX) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
ene. 28 — feb. 41
mié. 1/28
mié. 2/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Portugal

Cheapest flights from Portland to Portugal
Explore the most affordable flight options available from Portland to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 29, 2025.

This Air Canada deal was found by Cheapflights users on 12/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/317:30 amPDX - LIS
2 stops17h 25mAir Canada
dom. 1/1111:20 amLIS - PDX
2 stops35h 20mAir Canada
Deal found 12/28$966
This FlightHub deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/317:10 amPDX - LIS
2 stops23h 40mMultiple Airlines
dom. 1/1111:20 amLIS - PDX
2 stops35h 20mMultiple Airlines
Deal found 12/29$970
This oojo deal was found by Cheapflights users on 12/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/315:45 pmPDX - LIS
1 stop32h 10mBritish Airways
dom. 1/1112:55 pmLIS - PDX
1 stop35h 00mBritish Airways
Deal found 12/28$1,030
This Air Canada deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/317:30 amPDX - LIS
2 stops17h 25mMultiple Airlines
mar. 1/69:50 amLIS - PDX
2 stops31h 25mMultiple Airlines
Deal found 12/27$1,118
This Expedia deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/287:00 pmPDX - LIS
2 stops30h 20mMultiple Airlines
mié. 12/315:40 pmLIS - PDX
2 stops47h 48mMultiple Airlines
Deal found 12/27$1,229
This Turkish Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/3011:20 pmPDX - OPO
2 stops31h 50mMultiple Airlines
jue. 1/2210:55 amOPO - PDX
2 stops59h 51mMultiple Airlines
Deal found 12/29$1,296
This Expedia deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2911:02 amPDX - LIS
2 stops40h 23mMultiple Airlines
lun. 1/54:15 pmLIS - PDX
2 stops60h 33mMultiple Airlines
Deal found 12/29$1,322
This oojo deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/315:45 pmPDX - LIS
1 stop32h 10mBritish Airways
mar. 1/612:55 pmLIS - PDX
1 stop35h 00mBritish Airways
Deal found 12/27$1,439
This Orbitz deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/2811:20 pmPDX - OPO
2 stops31h 50mMultiple Airlines
dom. 1/44:30 pmOPO - PDX
2 stops38h 29mMultiple Airlines
Deal found 12/27$2,589
This oojo deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/289:42 pmPDX - PDL
1 stop25h 38mMultiple Airlines
sáb. 1/35:45 pmPDL - PDX
1 stop33h 51mMultiple Airlines
Deal found 12/27$2,737
This Delta deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/281:25 pmPDX - OPO
1 stop18h 00mDelta
dom. 1/45:00 amOPO - PDX
2 stops19h 40mDelta
Deal found 12/27$3,184
This Expedia deal was found by Cheapflights users on 12/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/299:42 pmPDX - OPO
2 stops36h 48mMultiple Airlines
dom. 1/47:35 amOPO - PDX
2 stops23h 46mMultiple Airlines
Deal found 12/28$5,924

Find flight deals from Portland to Portugal

Keep the following information in mind while searching for Portland to Portugal flight deals. Data was last updated diciembre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$478
(FlightHub)

One-way from

$317
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,013
Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.
Search Deals
From Portland to Portugal
Search Deals
One-way flight from Portland to Portugal
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($289 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 29, 2025.
Use the filters below to find and compare flights from Portland to Portugal that are best for you.

Fly from

Portland

Fly to

Portugal

Route

Depart

Return

Price

PortlandPorto

PDX - OPO

PDXOPO

Portland

mar. 3/3

7:00 am-10:30 am

2 stops19h 30m

Porto

sáb. 3/14

11:15 am-12:25 pm

1 stop32h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

lun. 3/2

6:00 am-10:30 am

2 stops20h 30m

Porto

mar. 3/10

11:15 am-12:25 pm

1 stop32h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

dom. 3/1

6:00 am-10:30 am

2 stops20h 30m

Porto

dom. 3/15

5:00 am-12:25 pm

1 stop14h 25m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

mar. 3/3

7:00 am-10:30 am

2 stops19h 30m

Porto

dom. 3/15

11:15 am-12:25 pm

1 stop32h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

lun. 3/2

1:25 pm-6:50 pm

1 stop21h 25m

Porto

mié. 3/11

5:00 am-12:25 pm

1 stop14h 25m

$484

PortlandLisbon

PDX - LIS

PDXLIS

Portland

mié. 2/4

7:05 pm-7:55 am

2 stops28h 50m

Lisbon Humberto Delgado

vie. 2/13

6:10 am-2:40 pm

2 stops40h 30m

$485

PortlandPorto

PDX - OPO

PDXOPO

Portland

dom. 3/1

1:25 pm-10:30 am

1 stop13h 05m

Porto

mié. 3/11

5:00 am-12:25 pm

1 stop14h 25m

$485

PortlandPorto

PDX - OPO

PDXOPO

Portland

mié. 3/4

1:25 pm-10:25 pm

1 stop25h 00m

Porto

dom. 3/15

5:00 am-12:25 pm

1 stop14h 25m

$485

PortlandPorto

PDX - OPO

PDXOPO

Portland

vie. 2/27

1:25 pm-10:30 am

1 stop13h 05m

Porto

jue. 3/12

11:15 am-12:25 pm

1 stop32h 10m

$485

PortlandPorto

PDX - OPO

PDXOPO

Portland

vie. 2/27

1:25 pm-10:30 am

1 stop13h 05m

Porto

dom. 3/15

5:00 am-12:25 pm

1 stop14h 25m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Portland to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Portland to Portugal?

Currently, November is the cheapest month in which you can book a flight from Portland to Portugal (average of $434). Flying from Portland to Portugal in June is currently the most expensive (average of $845). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated diciembre 29, 2025.
Read reviews from past customers who have flown Delta, KLM, and United Airlines from Portland to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,017 reviews
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,435 reviews
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,121 reviews
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,564 reviews
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,625 reviews
Delta
7.9
Good
8,017 reviews

Entertainment

7.9

Crew

8.5

Food

7.2

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Portland to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Portugal?

    For a flight from Portland to Portugal, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city.

  • How long is the flight from Portland to Portugal?

    Airlines like Delta, KLM, and Air Canada fly from Portland to Portugal in about 19h 30m. The time it takes to get you to your destination can typically vary by up to 9h 20m. There are 5183 mi between Portland and Portugal. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Portland to Portugal one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $232. Users have also found prices from $329 and $335 on Air Canada and United Airlines, respectively.

  • What are the most popular routes from Portland to Portugal?

    When deciding which route to take from Portland to Portugal consider Portland - Lisbon Humberto Delgado, Portland - Porto or Portland - Ponta Delgada Nordela as they are the most popular.

  • Can I find deals for flights from Portland to Portugal that include hotel bookings?

    Yes. In addition to deals on Portland to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Portugal.

  • Can I find deals for business class flights from Portland to Portugal?

    Yes. Cheapflights offers flight deals from Portland to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Portugal?

    Currently, November is the cheapest month in which you can book a flight from Portland to Portugal (average of $434). Flying from Portland to Portugal in June is currently the most expensive (average of $845). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Heathrow flights
Portland to Amsterdam flights
Portland to Gatwick flights
Portland to Leonardo da Vinci/Fiumicino flights
Portland to Charles de Gaulle flights
Portland to Dublin flights
Portland to Barcelona-El Prat flights
Portland to Orly flights
Portland to Athens flights
Portland to London City flights
Portland to Lisbon flights
Portland to Madrid flights
Portland to Stansted flights
Portland to Glasgow Intl flights
Portland to Edinburgh flights
Portland to Vicenza flights
Portland to Frankfurt flights
Boise to Barcelona-El Prat flights
Portland to Malpensa flights
Boise to Leonardo da Vinci/Fiumicino flights
Portland to Linate flights
Portland to Istanbul flights
Portland to Copenhagen flights
Portland to Oslo Gardermoen flights
Boise to Charles de Gaulle flights
Portland to Málaga flights
Portland to Florence flights
Boise to Heathrow flights
Boise to Dublin flights
Portland to Keflavik Intl flights
Portland to Zurich flights
Portland to Porto flights
Boise to Frankfurt flights
Portland to Berlin flights
Portland to Geneva flights
Portland to Sabiha Gokcen flights
Portland to Split flights
Portland to Vienna flights
Boise to Orly flights
Boise to Gatwick flights
Portland to Prague flights
Portland to Frederic Chopin flights
Portland to Arlanda flights
Boise to Athens flights
Portland to Naples flights
Redmond to Heathrow flights
Portland to Valencia flights
Boise to Lisbon flights
Boise to Madrid flights
Portland to Palma de Mallorca flights

Top 9 airlines flying from Portland to Portugal

Discover the top 9 airlines that operate flights from Portland to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$360Average$491FlexibilityNo cancel feeOn-time76%
KLMCheapest$498Average$898FlexibilityNo cancel feeOn-time75%
DeltaCheapest$498Average$958FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$564Average$793FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$586Average$1,115FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$600Average$948FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$603Average$1,208FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$634Average$1,039FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$692Average$1,074FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.