HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$295+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
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

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

Round-trip from

$526
(AirNGo)

One-way from

$295
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$961
From Portland to Portugal
Search Deals
One-way flight from Portland to Portugal
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($315 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 September 2025
Search Deals

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 septiembre 16, 2025.

This AirNGo deal was found by Cheapflights users on 9/15. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/206:15 amPDX - LIS
2 stops19h 05mMultiple Airlines
mié. 11/55:00 amLIS - PDX
2 stops27h 26mMultiple Airlines
Deal found 9/15$526
This Flighttix deal was found by Cheapflights users on 9/15. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/17:00 pmPDX - LIS
2 stops29h 55mAir Canada
vie. 12/1211:20 amLIS - PDX
2 stops29h 55mAir Canada
Deal found 9/15$544
This Air Canada deal was found by Cheapflights users on 9/14. 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.
sáb. 10/187:40 pmPDX - LIS
2 stops29h 40mAir Canada
jue. 11/65:00 amLIS - PDX
2 stops21h 30mAir Canada
Deal found 9/14$552
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/17:00 pmPDX - LIS
2 stops29h 55mAir Canada
jue. 12/115:00 amLIS - PDX
2 stops21h 30mAir Canada
Deal found 9/15$553
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/275:00 amPDX - OPO
2 stops21h 30mUnited Airlines
mié. 11/1212:35 pmOPO - PDX
2 stops29h 03mUnited Airlines
Deal found 9/16$555
This Air Canada deal was found by Cheapflights users on 9/16. 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.
mar. 12/25:00 amPDX - LIS
2 stops19h 55mMultiple Airlines
vie. 12/125:00 amLIS - PDX
2 stops21h 30mMultiple Airlines
Deal found 9/16$556
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/25:00 amPDX - LIS
2 stops19h 55mUnited Airlines
mié. 12/1011:00 amLIS - PDX
2 stops32h 48mUnited Airlines
Deal found 9/15$557
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2011:59 pmPDX - LIS
2 stops25h 21mUnited Airlines
mié. 11/55:00 amLIS - PDX
2 stops25h 10mUnited Airlines
Deal found 9/16$558
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/207:00 amPDX - LIS
2 stops18h 20mUnited Airlines
mar. 10/2811:20 amLIS - PDX
2 stops31h 28mUnited Airlines
Deal found 9/16$559
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/201:40 pmPDX - LIS
1 stop34h 20mVirgin Atlantic
mié. 11/510:00 amLIS - PDX
1 stop19h 04mVirgin Atlantic
Deal found 9/15$560
This United Airlines deal was found by Cheapflights users on 9/14. 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.
mar. 11/117:00 amPDX - OPO
2 stops18h 30mMultiple Airlines
jue. 11/2012:30 pmOPO - PDX
2 stops19h 56mMultiple Airlines
Deal found 9/14$560
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/37:00 amPDX - LIS
2 stops19h 15mUnited Airlines
mié. 12/1011:00 amLIS - PDX
2 stops32h 48mUnited Airlines
Deal found 9/15$561

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 septiembre 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

lun. 10/27

11:59 pm-9:30 am

2 stops26h 31m

Porto

mié. 11/12

12:35 pm-10:53 am

3 stops30h 18m

$555

PortlandLisbon

PDX - LIS

PDXLIS

Portland

mar. 12/2

5:00 am-8:55 am

2 stops19h 55m

Lisbon Humberto Delgado

mié. 12/10

11:00 am-11:48 am

2 stops32h 48m

$557

PortlandLisbon

PDX - LIS

PDXLIS

Portland

dom. 11/16

11:12 pm-8:10 am

1 stop24h 58m

Lisbon Humberto Delgado

mié. 11/26

11:20 am-6:30 pm

2 stops39h 10m

$558

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 10/20

11:59 pm-9:20 am

2 stops25h 21m

Lisbon Humberto Delgado

mié. 11/5

5:00 am-10:10 pm

2 stops25h 10m

$558

PortlandPorto

PDX - OPO

PDXOPO

Portland

mar. 11/11

7:00 am-9:30 am

2 stops18h 30m

Porto

jue. 11/20

12:30 pm-12:26 am

2 stops19h 56m

$560

PortlandPorto

PDX - OPO

PDXOPO

Portland

mar. 11/11

8:30 am-9:30 am

2 stops17h 00m

Porto

jue. 11/20

12:35 pm-10:10 pm

1 stop17h 35m

$563

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 10/20

1:40 pm-8:00 am

1 stop34h 20m

Lisbon Humberto Delgado

mié. 11/5

10:00 am-11:53 pm

2 stops21h 53m

$565

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 10/20

6:20 am-10:45 am

2 stops20h 25m

Lisbon Humberto Delgado

mié. 11/5

10:00 am-12:06 pm

1 stop34h 06m

$565

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 11/17

8:20 am-10:15 am

1 stop17h 55m

Lisbon Humberto Delgado

jue. 11/27

5:00 am-12:46 am

2 stops27h 46m

$566

PortlandLisbon

PDX - LIS

PDXLIS

Portland

dom. 11/16

8:20 am-10:15 am

1 stop17h 55m

Lisbon Humberto Delgado

mar. 11/25

5:00 am-10:45 pm

2 stops25h 45m

$567

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 43 results
1
2
3
...
5

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, January is the cheapest month in which you can book a flight from Portland to Portugal (average of $612). Flying from Portland to Portugal in June is currently the most expensive (average of $1,127). 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 septiembre 16, 2025.

When flying from Portland to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 septiembre 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
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,386 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,363 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 United Airlines, Virgin Atlantic, and British Airways fly from Portland to Portugal in about 15h 45m. The time it takes to get you to your destination can typically vary by up to 18h 35m. There are 5429 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 Lufthansa. According to our data, you can fly for as low as $295. Users have also found prices from $314 and $523 on United Airlines and Air Canada, 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 - Faro 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, January is the cheapest month in which you can book a flight from Portland to Portugal (average of $612). Flying from Portland to Portugal in June is currently the most expensive (average of $1,127). 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 Charles de Gaulle flights
Portland to Gatwick flights
Portland to Dublin flights
Portland to Madrid flights
Portland to London City flights
Portland to Orly flights
Portland to Lisbon flights
Portland to Leonardo da Vinci/Fiumicino flights
Portland to Barcelona-El Prat flights
Portland to Frankfurt flights
Portland to Berlin flights
Portland to Vicenza flights
Portland to Istanbul flights
Portland to Athens flights
Boise to Barcelona-El Prat flights
Portland to Malpensa flights
Portland to Linate flights
Portland to Munich flights
Portland to Edinburgh flights
Portland to Keflavik Intl flights
Boise to Leonardo da Vinci/Fiumicino flights
Portland to Bruxelles-National flights
Portland to Florence flights
Portland to Vienna flights
Portland to Zurich flights
Boise to Heathrow flights
Portland to Prague flights
Boise to Lisbon flights
Portland to Manchester flights
Portland to Luton flights
Portland to Sabiha Gokcen flights
Portland to Stansted flights
Portland to Oslo Gardermoen flights
Boise to Keflavik Intl flights
Portland to Glasgow Intl flights
Portland to Arlanda flights
Portland to Copenhagen flights
Portland to Málaga flights
Portland to Lyon flights
Portland to Otopeni Intl flights
Portland to Porto flights
Boise to Charles de Gaulle flights
Portland to Budapest flights
Boise to Madrid flights
Portland to Naples flights
Boise to Frankfurt flights
Boise to Copenhagen flights
Portland to Basel flights

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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$434Average$507FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$563Average$720FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$564Average$914FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$578Average$1,073FlexibilityNo cancel feeOn-time76%
DeltaCheapest$581Average$1,011FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$587Average$970FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$591Average$1,066FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$595Average$952FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$595Average$1,123FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$643Average$1,134FlexibilityNo cancel feeOn-time77%

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.