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Portugal

$326+ 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
nov. 21 — nov. 281
vie. 11/21
vie. 11/28
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 octubre 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$504
(Mytrip)

One-way from

$326
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$762
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 ($310 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 22, 2025.

This Mytrip deal was found by Cheapflights users on 10/21. 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.
lun. 11/243:15 pmPDX - LIS
2 stops34h 05mAir Canada
dom. 12/710:50 amLIS - PDX
2 stops35h 50mAir Canada
Deal found 10/21$504
This Air Canada deal was found by Cheapflights users on 10/20. 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. 11/243:15 pmPDX - LIS
2 stops34h 05mMultiple Airlines
dom. 12/75:00 amLIS - PDX
2 stops21h 30mMultiple Airlines
Deal found 10/20$526
This United deal was found by Cheapflights users on 10/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/245:00 amPDX - OPO
2 stops20h 30mMultiple Airlines
dom. 12/76:15 amOPO - PDX
2 stops20h 15mMultiple Airlines
Deal found 10/21$526
This Air Canada deal was found by Cheapflights users on 10/21. 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.
mié. 11/267:00 pmPDX - LIS
2 stops30h 20mAir Canada
dom. 12/75:00 amLIS - PDX
2 stops36h 15mAir Canada
Deal found 10/21$527
This Air Canada deal was found by Cheapflights users on 10/21. 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.
mié. 11/269:50 amPDX - LIS
2 stops39h 30mAir Canada
mar. 12/911:20 amLIS - PDX
2 stops39h 25mAir Canada
Deal found 10/21$528
This Delta deal was found by Cheapflights users on 10/21. 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.
lun. 11/246:00 amPDX - LIS
2 stops19h 00mDelta
dom. 12/711:25 amLIS - PDX
1 stop32h 00mDelta
Deal found 10/21$531
This United Airlines deal was found by Cheapflights users on 10/21. 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.
jue. 11/278:20 amPDX - LIS
1 stop17h 55mUnited Airlines
mar. 12/911:20 amLIS - PDX
2 stops32h 28mUnited Airlines
Deal found 10/21$532
This Air Canada deal was found by Cheapflights users on 10/21. 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.
jue. 11/273:15 pmPDX - LIS
2 stops34h 05mAir Canada
dom. 12/75:00 amLIS - PDX
2 stops36h 15mAir Canada
Deal found 10/21$533
This Delta deal was found by Cheapflights users on 10/21. 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.
lun. 11/241:25 pmPDX - OPO
1 stop18h 00mDelta
dom. 12/75:00 amOPO - PDX
1 stop14h 25mDelta
Deal found 10/21$533
This Air Canada deal was found by Cheapflights users on 10/21. 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.
mié. 11/269:50 amPDX - LIS
2 stops39h 30mAir Canada
vie. 12/511:20 amLIS - PDX
2 stops39h 25mAir Canada
Deal found 10/21$534
This KLM deal was found by Cheapflights users on 10/21. 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.
vie. 11/287:05 amPDX - LIS
1 stop17h 55mKLM
vie. 12/55:00 amLIS - PDX
1 stop14h 25mKLM
Deal found 10/21$535
This Air France deal was found by Cheapflights users on 10/20. 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.
lun. 11/177:05 amPDX - LIS
1 stop17h 55mMultiple Airlines
lun. 11/245:00 amLIS - PDX
1 stop14h 25mMultiple Airlines
Deal found 10/20$536

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 octubre 22, 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

sáb. 12/6

3:55 pm-11:40 pm

2 stops23h 45m

Porto

dom. 12/14

6:15 am-9:15 am

2 stops35h 00m

$526

PortlandPorto

PDX - OPO

PDXOPO

Portland

lun. 11/24

5:00 am-9:30 am

2 stops20h 30m

Porto

dom. 12/7

6:15 am-6:30 pm

2 stops20h 15m

$526

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 11/24

6:00 am-8:00 am

2 stops18h 00m

Lisbon Humberto Delgado

dom. 12/7

5:00 am-11:25 am

1 stop14h 25m

$531

PortlandPorto

PDX - OPO

PDXOPO

Portland

lun. 11/24

1:25 pm-3:25 pm

1 stop18h 00m

Porto

dom. 12/7

5:00 am-11:25 am

1 stop14h 25m

$533

PortlandLisbon

PDX - LIS

PDXLIS

Portland

mié. 2/18

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

mié. 2/25

5:00 am-11:25 am

1 stop14h 25m

$535

PortlandPorto

PDX - OPO

PDXOPO

Portland

lun. 11/24

6:00 am-10:30 am

2 stops20h 30m

Porto

dom. 12/7

11:25 am-10:10 pm

2 stops18h 45m

$538

PortlandLisbon

PDX - LIS

PDXLIS

Portland

lun. 3/9

7:10 am-3:10 pm

2 stops25h 00m

Lisbon Humberto Delgado

jue. 3/19

11:25 am-12:25 pm

1 stop32h 00m

$539

PortlandLisbon

PDX - LIS

PDXLIS

Portland

mié. 2/18

7:00 am-3:10 pm

2 stops24h 10m

Lisbon Humberto Delgado

mié. 2/25

5:00 am-11:25 am

1 stop14h 25m

$539

PortlandLisbon

PDX - LIS

PDXLIS

Portland

sáb. 1/10

11:05 pm-8:10 am

1 stop25h 05m

Lisbon Humberto Delgado

lun. 1/19

11:20 am-2:40 pm

2 stops35h 20m

$540

PortlandLisbon

PDX - LIS

PDXLIS

Portland

mié. 11/26

10:10 pm-8:00 am

2 stops25h 50m

Lisbon Humberto Delgado

jue. 12/4

11:25 am-11:25 am

1 stop32h 00m

$540

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 33 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 $443). 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 octubre 22, 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 octubre 22, 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
7,978 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,978 reviews
Delta
7.9
Good
7,978 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
KLM
7.7
Good
1,404 reviews
Delta
7.9
Good
7,978 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,988 reviews
Delta
7.9
Good
7,978 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air Canada
7.1
Good
10,338 reviews
Delta
7.9
Good
7,978 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,464 reviews
Delta
7.9
Good
7,978 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 Air France fly from Portland to Portugal in about 17h. The time it takes to get you to your destination can typically vary by up to 3h 30m. 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 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, November is the cheapest month in which you can book a flight from Portland to Portugal (average of $443). 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 octubre 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$434Average$507FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$564Average$896FlexibilityNo cancel feeOn-time71%
KLMCheapest$577Average$1,005FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$578Average$1,074FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$581Average$726FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$589Average$1,128FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$603Average$1,208FlexibilityNo cancel feeOn-time72%
DeltaCheapest$605Average$1,002FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$623Average$1,045FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$652Average$971FlexibilityNo cancel feeOn-time70%

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