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$523+ Cheap flights from Oregon to Porto (OPO)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — OPO
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from Oregon to Porto

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

Round-trip from

$549
(Trip.com)

One-way from

$523
(Air Canada)

Popular in

June

Cheapest in

November

Average price

$1,029
From Oregon to Porto
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One-way flight from Oregon to Porto
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Highest demand for flights based on searches. 24% potential increase in price ($334 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Oregon to Porto

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

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. 10/2711:12 pmPDX - OPO
1 stop27h 18mUnited Airlines
mié. 11/1212:35 pmOPO - PDX
2 stops31h 13mUnited Airlines
Deal found 9/16$555
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/149:55 amPDX - OPO
2 stops21h 50mMultiple Airlines
mar. 10/216:00 amOPO - PDX
2 stops25h 01mMultiple Airlines
Deal found 9/16$600
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.
mar. 10/149:55 amPDX - OPO
1 stop15h 50mUnited Airlines
mar. 10/216:00 amOPO - PDX
2 stops26h 28mUnited Airlines
Deal found 9/16$605
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.
vie. 11/2811:59 pmPDX - OPO
2 stops25h 31mUnited Airlines
vie. 12/126:00 amOPO - PDX
2 stops24h 15mUnited Airlines
Deal found 9/15$614
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.
mié. 11/126:00 amPDX - OPO
3 stops19h 30mUnited Airlines
dom. 11/1612:35 pmOPO - PDX
3 stops30h 18mUnited Airlines
Deal found 9/16$617
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.
mar. 11/115:00 amEUG - OPO
2 stops20h 30mUnited Airlines
dom. 11/166:00 amOPO - EUG
2 stops38h 09mUnited Airlines
Deal found 9/16$620
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.
vie. 10/318:20 amPDX - OPO
2 stops20h 20mUnited Airlines
vie. 11/76:00 amOPO - PDX
2 stops24h 10mUnited Airlines
Deal found 9/15$637
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/710:05 amPDX - OPO
2 stops29h 35mLufthansa
mar. 11/1112:30 pmOPO - PDX
2 stops38h 06mLufthansa
Deal found 9/15$652
This Air France 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/301:25 pmPDX - OPO
2 stops18h 05mMultiple Airlines
vie. 1/306:30 amOPO - PDX
2 stops23h 05mMultiple Airlines
Deal found 9/15$656
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.
lun. 10/66:15 amPDX - OPO
2 stops33h 05mMultiple Airlines
jue. 10/166:00 amOPO - PDX
2 stops35h 20mMultiple Airlines
Deal found 9/16$658
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/121:25 pmPDX - OPO
1 stop18h 00mDelta
dom. 11/165:00 amOPO - PDX
1 stop14h 25mDelta
Deal found 9/16$673
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/117:00 amEUG - OPO
2 stops42h 55mMultiple Airlines
sáb. 11/1510:55 amOPO - EUG
2 stops44h 11mMultiple Airlines
Deal found 9/16$952

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oregon to Porto 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 17, 2025.
Use the filters below to find and compare flights from Oregon to Porto that are best for you.

Fly from

Oregon

Fly to

Porto

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

EugenePorto

EUG - OPO

EUGOPO

Eugene

mar. 3/3

6:00 am-9:30 am

2 stops19h 30m

Porto

mié. 3/11

6:00 am-9:38 pm

2 stops22h 38m

$565

EugenePorto

EUG - OPO

EUGOPO

Eugene

mié. 3/4

5:00 am-9:30 am

2 stops20h 30m

Porto

vie. 3/13

6:00 am-10:54 pm

2 stops23h 54m

$565

EugenePorto

EUG - OPO

EUGOPO

Eugene

mar. 3/3

5:00 am-9:30 am

2 stops20h 30m

Porto

jue. 3/12

6:00 am-9:38 pm

2 stops22h 38m

$565

EugenePorto

EUG - OPO

EUGOPO

Eugene

mar. 3/3

6:00 am-9:30 am

2 stops19h 30m

Porto

mar. 3/10

6:00 am-9:38 pm

2 stops22h 38m

$565

EugenePorto

EUG - OPO

EUGOPO

Eugene

mié. 3/4

5:00 am-9:30 am

2 stops20h 30m

Porto

mié. 3/11

6:00 am-9:38 pm

2 stops22h 38m

$565

EugenePorto

EUG - OPO

EUGOPO

Eugene

mié. 3/4

6:00 am-9:30 am

2 stops19h 30m

Porto

mar. 3/10

6:00 am-9:38 pm

2 stops22h 38m

$565

EugenePorto

EUG - OPO

EUGOPO

Eugene

mar. 3/3

6:00 am-9:30 am

2 stops19h 30m

Porto

vie. 3/13

6:00 am-10:54 pm

2 stops23h 54m

$565

EugenePorto

EUG - OPO

EUGOPO

Eugene

lun. 3/2

2:02 pm-9:30 am

2 stops35h 28m

Porto

mié. 3/11

6:00 am-9:38 pm

2 stops22h 38m

$576

EugenePorto

EUG - OPO

EUGOPO

Eugene

lun. 3/2

1:15 pm-9:30 am

2 stops36h 15m

Porto

mar. 3/10

6:00 am-9:38 pm

2 stops22h 38m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 22 results
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Best time to book a flight from Oregon to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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 Porto

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

Currently, January is the cheapest month in which you can book a flight from Oregon to Porto (average of $523). Flying from Oregon to Porto in June is currently the most expensive (average of $1,028). 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 OPO?

Find hourly flight availability from Oregon to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

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

How much does it cost to fly round-trip from Oregon to Porto?

Related info for your journey

Find useful and relevant information for your journey from Oregon to Porto. 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 into for flights to Porto from Oregon?

    Porto (OPO), located 6.8 mi from the city center, is the airport you fly into when you book flights from Oregon to Porto.

  • How long is the flight from Oregon to Porto?

    Departing from Oregon to Porto will take you 26h 31m. Oregon and Porto are separated by a distance of 5183 mi.

  • What are the cheapest airlines to fly from Oregon to Porto one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $523. Users have also found prices from $528 and $578 on United Airlines and KLM, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Oregon to Porto (average of $523). Flying from Oregon to Porto in June is currently the most expensive (average of $1,028). 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

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Oregon to Porto

Discover the top 3 airlines that operate flights from Oregon to Porto. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$647Average$1,166FlexibilityNo cancel feeOn-time69%
DeltaCheapest$709Average$1,090FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$731Average$1,185FlexibilityNo cancel feeOn-time75%

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