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Portugal

$362+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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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 December 16, 2025.

This Air Canada deal was found by Cheapflights users on 12/16. 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.
Fri 12/263:15 pmPDX - LIS
2 stops33h 40mMultiple Airlines
Tue 1/276:10 amLIS - PDX
2 stops35h 05mMultiple Airlines
Deal found 12/16$602
This KLM deal was found by Cheapflights users on 12/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:25 pmPDX - OPO
1 stop21h 15mKLM
Thu 1/294:10 pmOPO - PDX
1 stop27h 15mKLM
Deal found 12/15$684
This Delta deal was found by Cheapflights users on 12/15. 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.
Tue 12/306:50 amPDX - OPO
2 stops19h 40mDelta
Thu 1/225:00 amOPO - PDX
2 stops27h 17mDelta
Deal found 12/15$693
This KLM deal was found by Cheapflights users on 12/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:29 pmPDX - OPO
2 stops18h 56mKLM
Fri 1/305:00 amOPO - PDX
2 stops23h 25mKLM
Deal found 12/14$699
This KLM deal was found by Cheapflights users on 12/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amPDX - LIS
1 stop17h 40mKLM
Sun 1/115:00 amLIS - PDX
2 stops19h 30mKLM
Deal found 12/15$749
This Delta deal was found by Cheapflights users on 12/15. 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.
Wed 12/316:50 amPDX - LIS
2 stops24h 20mDelta
Sun 1/115:00 amLIS - PDX
2 stops19h 30mDelta
Deal found 12/15$753
This KLM deal was found by Cheapflights users on 12/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:25 pmPDX - LIS
1 stop25h 45mKLM
Tue 1/273:30 pmLIS - PDX
1 stop27h 55mKLM
Deal found 12/16$755
This Air France deal was found by Cheapflights users on 12/16. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:19 amPDX - OPO
2 stops17h 11mMultiple Airlines
Thu 1/2211:15 amOPO - PDX
1 stop32h 10mMultiple Airlines
Deal found 12/16$768
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amPDX - LIS
2 stops17h 10mUnited Airlines
Thu 1/2211:20 amLIS - PDX
2 stops39h 36mUnited Airlines
Deal found 12/13$887
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amPDX - LIS
2 stops17h 10mUnited Airlines
Fri 1/2311:20 amLIS - PDX
2 stops32h 40mUnited Airlines
Deal found 12/13$890
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amPDX - LIS
2 stops17h 10mUnited Airlines
Tue 1/275:00 amLIS - PDX
2 stops27h 39mUnited Airlines
Deal found 12/13$895
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amPDX - LIS
2 stops17h 10mUnited Airlines
Wed 1/2810:15 amLIS - PDX
2 stops20h 29mUnited Airlines
Deal found 12/13$907

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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$443
(oojo)

One-way from

$362
(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 ($287 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 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 December 16, 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

Wed 1/14

6:00 am-10:30 am

2 stops20h 30m

Porto

Wed 1/21

5:00 am-11:25 am

1 stop14h 25m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 1/30

1:25 pm-10:30 am

1 stop13h 05m

Porto

Fri 2/6

5:00 am-11:25 am

1 stop14h 25m

$484

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 3/15

2:25 pm-10:30 am

1 stop13h 05m

Porto

Mon 3/23

5:00 am-12:25 pm

1 stop14h 25m

$484

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 3/8

7:00 am-8:55 am

1 stop18h 55m

Lisbon Humberto Delgado

Sun 3/15

3:30 pm-12:25 pm

1 stop27h 55m

$487

PortlandFaro

PDX - FAO

PDXFAO

Portland

Thu 2/5

6:50 am-7:20 pm

2 stops28h 30m

Faro

Thu 2/19

8:15 pm-11:25 am

1 stop23h 10m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 3/10

5:19 am-8:00 am

2 stops19h 41m

Lisbon Humberto Delgado

Fri 3/20

5:00 am-12:25 pm

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 3/8

7:05 am-3:10 pm

2 stops25h 05m

Lisbon Humberto Delgado

Sun 3/15

11:25 am-12:25 pm

1 stop32h 00m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 3/8

12:30 am-8:00 am

2 stops24h 30m

Lisbon Humberto Delgado

Thu 3/19

11:25 am-12:25 pm

1 stop32h 00m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

7:00 am-3:10 pm

2 stops24h 10m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 3/11

5:19 am-5:30 pm

2 stops29h 11m

Lisbon Humberto Delgado

Fri 3/20

5:00 am-12:25 pm

1 stop14h 25m

$491

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 43 results
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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 $843). 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.

What is the cheapest time of day to fly from PDX to PT?

Find hourly flight availability from Portland to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

One of the essential ways to save on airfare from Portland to Portugal is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 28% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Portland to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Portugal flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 16, 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
8,009 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

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
1,430 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

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
9,094 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

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
10,530 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

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
7,580 reviews
Delta
7.9
Good
8,009 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

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 United Airlines fly from Portland to Portugal in about 13h 05m. The time it takes to get you to your destination can typically vary by up to 13h 26m. 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 $843). 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

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Alternative routes for Portland to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Portland to Portugal

Discover the top 8 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$360Average$492FlexibilityNo cancel feeOn-time76%
KLMCheapest$498Average$862FlexibilityNo cancel feeOn-time75%
DeltaCheapest$560Average$953FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$564Average$793FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$586Average$1,117FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$614Average$954FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$634Average$1,027FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$692Average$1,074FlexibilityNo cancel feeOn-time76%

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