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Portugal

$297+ 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
feb. 3 — feb. 101
ti. 2/3
ti. 2/10
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 Januar 4, 2026.

This Gotogate deal was found by Cheapflights users on 1/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 4/69:50 amPDX - LIS
2 stops39h 30mMultiple Airlines
fr. 4/175:05 amLIS - PDX
2 stops21h 25mMultiple Airlines
Deal found 1/2$458
This FlightHub deal was found by Cheapflights users on 1/4. 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.
ma. 4/63:15 pmPDX - LIS
2 stops34h 05mMultiple Airlines
on. 5/612:05 pmLIS - PDX
2 stops39h 00mMultiple Airlines
Deal found 1/4$473
This Flightnetwork deal was found by Cheapflights users on 1/4. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
on. 2/187:05 pmPDX - LIS
2 stops28h 50mAir Canada
on. 2/2511:20 amLIS - PDX
2 stops29h 55mAir Canada
Deal found 1/4$477
This FlightHub deal was found by Cheapflights users on 1/2. 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.
on. 2/189:50 amPDX - LIS
2 stops38h 05mLufthansa
on. 2/255:00 amLIS - PDX
2 stops21h 49mLufthansa
Deal found 1/2$481
This FlightHub deal was found by Cheapflights users on 1/2. 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.
ma. 4/133:15 pmPDX - LIS
2 stops34h 05mMultiple Airlines
ti. 4/286:10 pmLIS - PDX
2 stops36h 19mMultiple Airlines
Deal found 1/2$483
This Delta deal was found by Cheapflights users on 1/2. 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.
ti. 4/710:42 amPDX - OPO
2 stops27h 23mDelta
on. 4/225:00 amOPO - PDX
1 stop14h 10mDelta
Deal found 1/2$483
This FlightHub deal was found by Cheapflights users on 1/2. 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.
ti. 4/79:50 amPDX - LIS
2 stops39h 30mMultiple Airlines
fr. 4/175:05 amLIS - PDX
2 stops21h 25mMultiple Airlines
Deal found 1/2$484
This KLM deal was found by Cheapflights users on 1/1. 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.
ti. 4/71:05 pmPDX - OPO
1 stop25h 10mKLM
to. 4/234:20 pmOPO - PDX
1 stop26h 50mKLM
Deal found 1/1$484
This KLM deal was found by Cheapflights users on 1/3. 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.
fr. 2/201:25 pmPDX - OPO
1 stop18h 00mKLM
ma. 3/25:00 amOPO - PDX
1 stop14h 25mKLM
Deal found 1/3$485
This Mytrip deal was found by Cheapflights users on 1/2. 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.
on. 2/183:15 pmPDX - LIS
2 stops32h 40mAir Canada
to. 2/2611:20 amLIS - PDX
2 stops43h 20mAir Canada
Deal found 1/2$486
This oojo deal was found by Cheapflights users on 1/3. 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.
on. 2/187:00 amPDX - FAO
2 stops20h 40mMultiple Airlines
on. 2/252:40 pmFAO - PDX
2 stops40h 00mMultiple Airlines
Deal found 1/3$486
This Booking.com deal was found by Cheapflights users on 1/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fr. 2/209:50 amPDX - OPO
2 stops29h 50mMultiple Airlines
ma. 3/212:30 pmOPO - PDX
2 stops38h 19mMultiple Airlines
Deal found 1/3$486

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 Januar 4, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$458
(Gotogate)

One-way from

$297
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$736
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. 26% potential increase in price ($320 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 Januar 4, 2026.
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

ti. 4/7

1:05 pm-6:10 pm

1 stop21h 05m

Porto

ma. 4/20

11:45 am-11:10 am

1 stop31h 25m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

on. 4/8

1:05 pm-3:30 pm

1 stop18h 25m

Porto

to. 4/23

11:45 am-11:10 am

1 stop31h 25m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

on. 4/8

7:00 am-10:00 pm

2 stops31h 00m

Porto

on. 4/22

5:00 am-11:10 am

1 stop14h 10m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

ti. 4/7

9:05 am-10:05 pm

2 stops29h 00m

Porto

to. 4/23

11:45 am-11:10 am

1 stop31h 25m

$483

PortlandPorto

PDX - OPO

PDXOPO

Portland

fr. 2/20

1:25 pm-3:25 pm

1 stop18h 00m

Porto

ma. 3/2

5:00 am-11:25 am

1 stop14h 25m

$485

PortlandFaro

PDX - FAO

PDXFAO

Portland

on. 2/18

7:00 am-11:40 am

2 stops20h 40m

Faro

on. 2/25

2:40 pm-10:40 pm

2 stops40h 00m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

ti. 3/3

7:00 am-9:00 am

1 stop18h 00m

Lisbon Humberto Delgado

fr. 3/13

5:00 am-12:25 pm

1 stop14h 25m

$488

PortlandLisbon

PDX - LIS

PDXLIS

Portland

ti. 3/3

7:00 am-9:00 am

1 stop18h 00m

Lisbon Humberto Delgado

on. 3/11

5:00 am-12:25 pm

1 stop14h 25m

$488

PortlandLisbon

PDX - LIS

PDXLIS

Portland

on. 3/4

7:15 am-3:10 pm

2 stops23h 55m

Lisbon Humberto Delgado

fr. 3/13

5:00 am-12:25 pm

1 stop14h 25m

$492

PortlandLisbon

PDX - LIS

PDXLIS

Portland

ti. 3/3

6:00 am-5:30 pm

2 stops27h 30m

Lisbon Humberto Delgado

on. 3/11

5:00 am-12:25 pm

1 stop14h 25m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

Showing 1-10 of 52 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 $844). 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 Januar 4, 2026.
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
8,018 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
8,018 reviews
Delta
7.9
Good
8,018 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
8,018 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
9,137 reviews
Delta
7.9
Good
8,018 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
10,589 reviews
Delta
7.9
Good
8,018 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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
7,642 reviews
Delta
7.9
Good
8,018 reviews

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

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 Air Canada, Lufthansa, and Delta fly from Portland to Portugal in about 21h 05m. The time it takes to get you to your destination can typically vary by up to 17h. 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 $844). 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 Januar 4, 2026.
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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