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Portugal

$302+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
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 30, 2025.

This Air Canada deal was found by Cheapflights users on 12/30. 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.
Wed 12/317:10 amPDX - LIS
2 stops17h 45mAir Canada
Sun 1/1111:20 amLIS - PDX
2 stops35h 20mAir Canada
Deal found 12/30$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.
Wed 12/317:10 amPDX - LIS
2 stops23h 40mMultiple Airlines
Sun 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.
Wed 12/315:45 pmPDX - LIS
1 stop32h 10mBritish Airways
Sun 1/1112:55 pmLIS - PDX
1 stop35h 00mBritish Airways
Deal found 12/28$1,030
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.
Tue 12/3011:20 pmPDX - OPO
2 stops31h 50mMultiple Airlines
Thu 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.
Mon 12/2911:02 amPDX - LIS
2 stops40h 23mMultiple Airlines
Mon 1/54:15 pmLIS - PDX
2 stops60h 33mMultiple Airlines
Deal found 12/29$1,322
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:00 amPDX - LIS
2 stops21h 15mUnited Airlines
Mon 1/511:55 amLIS - PDX
3 stops39h 01mUnited Airlines
Deal found 12/29$1,464
This Cheapflightsfares deal was found by Cheapflights users on 12/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:33 amPDX - LIS
2 stops25h 17mBritish Airways
Fri 1/167:05 amLIS - PDX
1 stop16h 50mBritish Airways
Deal found 12/30$1,472
This KLM deal was found by Cheapflights users on 12/30. 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.
Tue 12/3012:35 pmPDX - OPO
2 stops37h 55mKLM
Thu 1/224:10 pmOPO - PDX
1 stop27h 15mKLM
Deal found 12/30$1,768
This Delta deal was found by Cheapflights users on 12/30. 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 12/3012:29 pmPDX - OPO
2 stops25h 56mDelta
Thu 1/225:00 amOPO - PDX
2 stops22h 13mDelta
Deal found 12/30$1,778
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.
Sun 12/2811:20 pmPDX - OPO
2 stops31h 50mMultiple Airlines
Sun 1/44:30 pmOPO - PDX
2 stops38h 29mMultiple Airlines
Deal found 12/27$2,589
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.
Sun 12/281:25 pmPDX - OPO
1 stop18h 00mDelta
Sun 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.
Mon 12/299:42 pmPDX - OPO
2 stops36h 48mMultiple Airlines
Sun 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 December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$478
(FlightHub)

One-way from

$302
(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 December 30, 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

Sun 3/1

6:00 am-10:30 am

2 stops20h 30m

Porto

Fri 3/13

5:00 am-12:25 pm

1 stop14h 25m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 3/3

7:00 am-10:30 am

2 stops19h 30m

Porto

Sat 3/14

11:15 am-12:25 pm

1 stop32h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 3/2

6:00 am-10:30 am

2 stops20h 30m

Porto

Tue 3/10

11:15 am-12:25 pm

1 stop32h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 4/19

1:05 pm-3:30 pm

1 stop18h 25m

Porto

Thu 4/30

5:00 am-11:10 am

1 stop14h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 3/1

6:00 am-10:30 am

2 stops20h 30m

Porto

Sun 3/15

5:00 am-12:25 pm

1 stop14h 25m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 3/3

7:00 am-10:30 am

2 stops19h 30m

Porto

Sun 3/15

11:15 am-12:25 pm

1 stop32h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 3/2

1:25 pm-6:50 pm

1 stop21h 25m

Porto

Wed 3/11

5:00 am-12:25 pm

1 stop14h 25m

$484

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 3/4

1:25 pm-10:25 pm

1 stop25h 00m

Porto

Sun 3/15

5:00 am-12:25 pm

1 stop14h 25m

$485

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 2/27

1:25 pm-10:30 am

1 stop13h 05m

Porto

Thu 3/12

11:15 am-12:25 pm

1 stop32h 10m

$485

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 2/27

1:25 pm-10:30 am

1 stop13h 05m

Porto

Sun 3/15

5:00 am-12:25 pm

1 stop14h 25m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 60 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 $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 December 30, 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
8,016 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

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
8,016 reviews
Delta
7.9
Good
8,016 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

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
8,016 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

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
9,123 reviews
Delta
7.9
Good
8,016 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

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
8,016 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

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
8,016 reviews

Entertainment

7.9

Overall

7.9

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

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 21h 25m. The time it takes to get you to your destination can typically vary by up to 2h 46m. 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

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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 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 December 30, 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%

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