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Portugal

$323+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Dec 16 — Dec 231
Tue 12/16
Tue 12/23
1 adult, Economy
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Cheap flight deals from Portland to Portugal

Keep the following information in mind while searching for Portland to Portugal flight deals. Data was last updated November 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$370
(oojo)

One-way from

$323
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$559
Provider with most accurate pricing for Portland-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Portland-Lisbon Humberto Delgado flights.
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From Portland to Portugal
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One-way flight from Portland to Portugal
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Highest demand for flights based on searches. 25% potential increase in price ($306 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 16, 2025.

This oojo deal was found by Cheapflights users on 11/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:45 pmPDX - LIS
1 stop21h 35mIcelandair
Sun 12/149:20 pmLIS - PDX
1 stop27h 40mIcelandair
Deal found 11/16$370
This Mytrip deal was found by Cheapflights users on 11/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 pmPDX - LIS
2 stops53h 55mAir Canada
Tue 1/1311:20 amLIS - PDX
2 stops53h 45mAir Canada
Deal found 11/14$469
This United Airlines deal was found by Cheapflights users on 11/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:52 pmPDX - LIS
1 stop27h 23mUnited Airlines
Tue 1/1311:20 amLIS - PDX
2 stops39h 36mUnited Airlines
Deal found 11/14$498
This Air Canada deal was found by Cheapflights users on 11/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:00 pmPDX - LIS
2 stops30h 20mAir Canada
Mon 12/1511:20 amLIS - PDX
2 stops39h 21mAir Canada
Deal found 11/14$567
This United Airlines deal was found by Cheapflights users on 11/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/61:00 pmPDX - LIS
3 stops37h 15mUnited Airlines
Sun 12/1410:50 amLIS - PDX
2 stops43h 25mUnited Airlines
Deal found 11/14$576
This Finnair deal was found by Cheapflights users on 11/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amPDX - LIS
2 stops15h 55mMultiple Airlines
Sun 1/1111:05 amLIS - PDX
2 stops19h 06mMultiple Airlines
Deal found 11/16$613
This Delta deal was found by Cheapflights users on 11/15. 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 12/241:25 pmPDX - OPO
1 stop13h 05mDelta
Tue 1/1311:15 amOPO - PDX
1 stop32h 10mDelta
Deal found 11/15$668
This Delta deal was found by Cheapflights users on 11/15. 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 12/241:25 pmPDX - OPO
1 stop25h 00mDelta
Thu 1/156:35 amOPO - PDX
2 stops45h 50mDelta
Deal found 11/15$679
This Delta deal was found by Cheapflights users on 11/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:05 amPDX - OPO
2 stops19h 25mDelta
Sun 12/75:00 amOPO - PDX
1 stop14h 25mDelta
Deal found 11/13$681
This Delta deal was found by Cheapflights users on 11/15. 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.
Sat 12/277:30 pmPDX - OPO
2 stops55h 00mDelta
Thu 1/1511:15 amOPO - PDX
1 stop32h 10mDelta
Deal found 11/15$684
This KLM deal was found by Cheapflights users on 11/14. 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.
Fri 11/281:25 pmPDX - OPO
1 stop21h 50mKLM
Fri 12/126:30 amOPO - PDX
2 stops19h 13mKLM
Deal found 11/14$692
This KLM deal was found by Cheapflights users on 11/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:54 amPDX - FAO
2 stops45h 01mKLM
Mon 12/87:15 pmFAO - PDX
2 stops30h 59mKLM
Deal found 11/13$751

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 November 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

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Sun 2/22

7:00 am-8:55 am

1 stop17h 55m

Lisbon Humberto Delgado

Sun 3/1

5:00 am-11:25 am

1 stop14h 25m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-11:25 am

1 stop14h 25m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-11:25 am

1 stop14h 25m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 2/20

7:00 am-9:00 am

1 stop18h 00m

Lisbon Humberto Delgado

Thu 2/26

3:30 pm-11:25 am

1 stop27h 55m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Mon 2/23

7:00 am-9:00 am

1 stop18h 00m

Lisbon Humberto Delgado

Sun 3/1

5:00 am-11:25 am

1 stop14h 25m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Tue 2/24

11:10 am-11:20 am

2 stops16h 10m

Lisbon Humberto Delgado

Tue 3/3

4:50 pm-11:25 am

1 stop26h 35m

$490

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 1/1

5:30 am-8:00 am

2 stops18h 30m

Lisbon Humberto Delgado

Tue 1/20

11:25 am-11:25 am

1 stop32h 00m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 1/1

5:30 am-8:00 am

2 stops18h 30m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 2/20

1:25 pm-2:35 pm

1 stop17h 10m

Lisbon Humberto Delgado

Thu 3/5

11:25 am-11:25 am

1 stop32h 00m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

1:24 pm-7:55 am

3 stops34h 31m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-9:49 pm

2 stops24h 49m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 35 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 $943). 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 November 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 November 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
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

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
1,411 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

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
9,012 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

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
10,454 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

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
7,526 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

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 KLM, Delta, and United Airlines fly from Portland to Portugal in about 17h 55m. The time it takes to get you to your destination can typically vary by up to 7h 50m. There are 5295 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 Air Canada. According to our data, you can fly for as low as $323. Users have also found prices from $328 and $528 on United Airlines and British Airways, 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 $943). 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 10 airlines flying from Portland to Portugal

Discover the top 10 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 November 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$424Average$501FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$564Average$896FlexibilityNo cancel feeOn-time71%
KLMCheapest$575Average$982FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$578Average$1,074FlexibilityNo cancel feeOn-time76%
DeltaCheapest$583Average$993FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$586Average$1,128FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$595Average$720FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$603Average$1,208FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$634Average$1,056FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$642Average$963FlexibilityNo cancel feeOn-time70%

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