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Portugal

$325+ Cheap flights from Oregon 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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Cheap flight deals from Oregon to Portugal

Cheapest flights from Oregon to Portugal
Explore the most affordable flight options available from Oregon to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 17, 2025.

This Air Canada deal was found by Cheapflights users on 12/17. 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.
Fri 12/263:15 pmPDX - LIS
2 stops33h 40mMultiple Airlines
Tue 1/276:10 amLIS - PDX
2 stops40h 30mMultiple Airlines
Deal found 12/17$602
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:19 pmBOI - LIS
2 stops54h 41mDelta
Mon 1/1211:25 amLIS - BOI
2 stops35h 52mDelta
Deal found 12/16$629
This KLM deal was found by Cheapflights users on 12/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:25 pmPDX - OPO
1 stop21h 15mKLM
Thu 1/294:10 pmOPO - PDX
1 stop27h 15mKLM
Deal found 12/15$684
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amPDX - OPO
2 stops21h 00mDelta
Thu 1/225:00 amOPO - PDX
2 stops23h 32mDelta
Deal found 12/16$693
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:55 pmBOI - LIS
2 stops59h 05mDelta
Sun 1/115:00 amLIS - BOI
2 stops39h 00mDelta
Deal found 12/16$742
This KLM deal was found by Cheapflights users on 12/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amPDX - LIS
1 stop17h 40mKLM
Sun 1/115:00 amLIS - PDX
2 stops19h 30mKLM
Deal found 12/15$749
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/235:00 amBOI - LIS
2 stops46h 15mUnited Airlines
Sun 1/1111:20 amLIS - BOI
2 stops41h 03mUnited Airlines
Deal found 12/16$749
This Delta deal was found by Cheapflights users on 12/15. 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 12/316:50 amPDX - LIS
2 stops24h 20mDelta
Sun 1/115:00 amLIS - PDX
2 stops19h 30mDelta
Deal found 12/15$753
This KLM deal was found by Cheapflights users on 12/16. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:25 pmPDX - LIS
1 stop25h 45mKLM
Tue 1/273:30 pmLIS - PDX
1 stop27h 55mKLM
Deal found 12/16$755
This Air France deal was found by Cheapflights users on 12/16. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:19 amPDX - OPO
2 stops17h 11mMultiple Airlines
Thu 1/2211:15 amOPO - PDX
1 stop32h 10mMultiple Airlines
Deal found 12/16$768
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/248:20 amBOI - LIS
2 stops18h 55mUnited Airlines
Mon 1/1211:20 amLIS - BOI
2 stops33h 15mUnited Airlines
Deal found 12/16$811
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:55 pmBOI - LIS
2 stops59h 05mDelta
Fri 1/95:30 amLIS - BOI
2 stops19h 58mDelta
Deal found 12/16$812

Find flight deals from Oregon to Portugal

Keep the following information in mind while searching for Oregon to Portugal flight deals. Data was last updated December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$443
(oojo)

One-way from

$335
(United Airlines)

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 Oregon to Portugal
Search Deals
One-way flight from Oregon to Portugal
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($287 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 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 Oregon 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 17, 2025.
Use the filters below to find and compare flights from Oregon to Portugal that are best for you.

Fly from

Oregon

Fly to

Portugal

Route

Depart

Return

Price

PortlandFaro

PDX - FAO

PDXFAO

Portland

Thu 2/5

6:50 am-7:20 pm

2 stops28h 30m

Faro

Thu 2/19

8:15 pm-11:25 am

1 stop23h 10m

$487

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 3/6

1:00 pm-8:55 am

3 stops35h 55m

Lisbon Humberto Delgado

Tue 3/17

11:20 am-7:14 pm

2 stops38h 54m

$490

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Fri 1/30

7:00 am-3:10 pm

2 stops24h 10m

Lisbon Humberto Delgado

Fri 2/6

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 1/14

9:20 am-3:10 pm

2 stops21h 50m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

11:15 am-3:10 pm

2 stops19h 55m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-11:25 am

1 stop14h 25m

$491

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

1:25 pm-6:30 pm

1 stop21h 05m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-11:25 am

1 stop14h 25m

$492

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 1/14

1:25 pm-2:35 pm

1 stop17h 10m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-11:25 am

1 stop14h 25m

$492

EugenePorto

EUG - OPO

EUGOPO

Eugene

Thu 3/5

2:09 pm-10:25 pm

2 stops24h 16m

Porto

Fri 3/13

6:30 am-9:07 pm

2 stops21h 37m

$493

BoiseLisbon

BOI - LIS

BOILIS

Boise Air Term. Gowen Fld

Fri 1/16

6:10 am-9:20 am

2 stops20h 10m

Lisbon Humberto Delgado

Tue 1/20

11:20 am-12:39 pm

2 stops32h 19m

$493

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 1/13

7:00 am-10:30 am

2 stops19h 30m

Porto

Mon 2/2

5:00 am-8:25 pm

2 stops23h 25m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Oregon to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Oregon 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 Oregon to Portugal

What is the cheapest month to book a flight from Oregon to Portugal?

Currently, November is the cheapest month in which you can book a flight from Oregon to Portugal (average of $434). Flying from Oregon to Portugal in June is currently the most expensive (average of $843). 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 OR to PT?

Find hourly flight availability from Oregon 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 December 17, 2025.

It’s optimal to fly from Oregon to Portugal at noon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Oregon to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Oregon to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Oregon to Portugal flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Oregon to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oregon to Portugal?

    For as low as $443, Icelandair can have you in Portugal from Oregon in 21h 35m. There are 5295 mi between Oregon 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 Oregon to Portugal one-way?

    The cheapest airlines for a one-way flight from Oregon to Portugal are Icelandair ($232), Air Canada ($329), and United Airlines ($335).

  • Can I find deals for flights from Oregon to Portugal that include hotel bookings?

    Yes. In addition to deals on Oregon to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oregon to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Portugal.

  • Can I find deals for business class flights from Oregon to Portugal?

    Yes. Cheapflights offers flight deals from Oregon 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 Oregon to Portugal?

    Currently, November is the cheapest month in which you can book a flight from Oregon to Portugal (average of $434). Flying from Oregon to Portugal in June is currently the most expensive (average of $843). 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 Oregon to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Oregon to Portugal

Discover the top 8 airlines that operate flights from Oregon 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$360Average$492FlexibilityNo cancel feeOn-time76%
DeltaCheapest$479Average$944FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$498Average$862FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$564Average$793FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$586Average$1,070FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$614Average$954FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$634Average$1,027FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$692Average$1,074FlexibilityNo cancel feeOn-time76%

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