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Portugal

$320+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find 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 October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/292:45 pmPDX - LIS
1 stop21h 35mIcelandair
Sun 12/149:20 pmLIS - PDX
1 stop27h 40mIcelandair
Deal found 10/30$368
This Air France deal was found by Cheapflights users on 10/30. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/11:25 pmPDX - OPO
1 stop18h 00mKLM
Tue 12/94:10 pmOPO - PDX
1 stop27h 15mKLM
Deal found 10/30$483
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:20 amPDX - OPO
2 stops17h 10mUnited Airlines
Fri 12/1212:30 pmOPO - PDX
2 stops20h 07mUnited Airlines
Deal found 10/30$488
This KLM deal was found by Cheapflights users on 10/30. 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.
Fri 11/281:25 pmPDX - OPO
1 stop18h 00mKLM
Fri 12/1211:20 amOPO - PDX
2 stops18h 50mKLM
Deal found 10/30$499
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:55 amRDM - LIS
2 stops21h 25mDelta
Sun 12/711:25 amLIS - RDM
2 stops39h 25mDelta
Deal found 10/29$500
This Delta deal was found by Cheapflights users on 10/30. 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 12/28:45 amBOI - LIS
2 stops23h 25mDelta
Wed 12/105:00 amLIS - BOI
2 stops24h 16mDelta
Deal found 10/30$500
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/110:05 amPDX - OPO
2 stops20h 50mMultiple Airlines
Tue 12/912:30 pmOPO - PDX
2 stops20h 07mMultiple Airlines
Deal found 10/30$503
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:00 amBOI - LIS
2 stops23h 10mDelta
Tue 12/165:30 amLIS - BOI
2 stops21h 50mDelta
Deal found 10/29$506
This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:59 pmPDX - OPO
2 stops30h 46mUnited Airlines
Tue 12/96:00 amOPO - PDX
3 stops44h 45mUnited Airlines
Deal found 10/30$514
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/263:15 pmPDX - LIS
2 stops34h 05mMultiple Airlines
Wed 12/35:00 amLIS - PDX
2 stops21h 30mMultiple Airlines
Deal found 10/28$527
This Priceline deal was found by Cheapflights users on 10/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:00 pmPDX - LIS
2 stops30h 20mAir Canada
Tue 12/911:20 amLIS - PDX
2 stops39h 25mAir Canada
Deal found 10/30$528
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:20 amPDX - LIS
1 stop17h 55mUnited Airlines
Thu 12/410:55 amLIS - PDX
2 stops39h 50mUnited Airlines
Deal found 10/28$532

Cheap flight deals from Oregon to Portugal

Keep the following information in mind while searching for Oregon to Portugal flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$368
(Mytrip)

One-way from

$320
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$762
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.
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From Oregon to Portugal
Search Deals
One-way flight from Oregon to Portugal
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($312 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 12/1

1:25 pm-3:25 pm

1 stop18h 00m

Porto

Tue 12/9

4:10 pm-11:25 am

1 stop27h 15m

$483

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/18

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-11:25 am

1 stop14h 25m

$486

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Thu 2/5

7:00 am-8:00 am

1 stop17h 00m

Lisbon Humberto Delgado

Fri 2/20

5:00 am-11:25 am

1 stop14h 25m

$486

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 11/28

8:20 am-9:30 am

2 stops17h 10m

Porto

Fri 12/12

12:30 pm-12:37 am

2 stops20h 07m

$488

PortlandLisbon

PDX - LIS

PDXLIS

Portland

Wed 2/4

7:00 am-3:10 pm

2 stops24h 10m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-11:25 am

1 stop14h 25m

$490

PortlandPorto

PDX - OPO

PDXOPO

Portland

Fri 11/28

1:25 pm-3:25 pm

1 stop18h 00m

Porto

Fri 12/12

11:20 am-10:10 pm

2 stops18h 50m

$499

EugeneLisbon

EUG - LIS

EUGLIS

Eugene

Wed 1/14

11:25 am-10:25 pm

2 stops27h 00m

Lisbon Humberto Delgado

Thu 1/29

5:00 am-4:37 pm

2 stops19h 37m

$500

EugeneLisbon

EUG - LIS

EUGLIS

Eugene

Sun 1/18

11:25 am-3:10 pm

2 stops19h 45m

Lisbon Humberto Delgado

Thu 1/29

5:00 am-11:02 pm

2 stops26h 02m

$500

EugeneLisbon

EUG - LIS

EUGLIS

Eugene

Fri 1/16

5:50 am-11:20 am

2 stops21h 30m

Lisbon Humberto Delgado

Thu 1/29

5:00 am-4:37 pm

2 stops19h 37m

$500

EugeneLisbon

EUG - LIS

EUGLIS

Eugene

Mon 1/12

6:04 am-3:10 pm

2 stops25h 06m

Lisbon Humberto Delgado

Fri 1/30

5:00 am-11:02 pm

2 stops26h 02m

$500

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 $443). Flying from Oregon 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 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 October 30, 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 Monday at noon 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 $488, KLM can have you in Portugal from Oregon in 17h 10m. There are 5183 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 Air Canada ($323), United Airlines ($328), and Delta ($443).

  • 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 $443). Flying from Oregon 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Oregon to Portugal

Discover the top 10 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$434Average$507FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$551Average$710FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$564Average$896FlexibilityNo cancel feeOn-time71%
KLMCheapest$575Average$998FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$578Average$1,074FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$586Average$1,103FlexibilityNo cancel feeOn-time69%
DeltaCheapest$589Average$1,118FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$603Average$1,208FlexibilityNo cancel feeOn-time72%
Air CanadaCheapest$634Average$1,056FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$652Average$967FlexibilityNo cancel feeOn-time70%

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