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$361+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — OPO
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This Expedia deal was found by Cheapflights users on 11/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:08 pmEUG - OPO
2 stops40h 07mLufthansa
Tue 12/96:00 amOPO - EUG
2 stops23h 30mLufthansa
Deal found 11/3$490
This United deal was found by Cheapflights users on 11/5. 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.
Wed 12/317:45 pmPDX - OPO
2 stops43h 55mMultiple Airlines
Mon 2/21:45 pmOPO - PDX
2 stops36h 45mMultiple Airlines
Deal found 11/5$490
This KLM deal was found by Cheapflights users on 11/5. 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 12/311:25 pmPDX - OPO
1 stop25h 00mKLM
Wed 1/216:00 amOPO - PDX
2 stops24h 15mKLM
Deal found 11/5$492
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/26:47 pmEUG - OPO
3 stops32h 53mUnited Airlines
Tue 12/96:00 amOPO - EUG
2 stops24h 59mUnited Airlines
Deal found 11/3$503
This United deal was found by Cheapflights users on 11/5. 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.
Wed 12/317:45 pmPDX - OPO
2 stops43h 55mMultiple Airlines
Wed 1/2112:30 pmOPO - PDX
2 stops38h 00mMultiple Airlines
Deal found 11/5$507
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/310:10 amPDX - OPO
2 stops21h 15mMultiple Airlines
Tue 12/1612:30 pmOPO - PDX
2 stops20h 07mMultiple Airlines
Deal found 11/4$589
This Orbitz deal was found by Cheapflights users on 11/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:10 amPDX - OPO
2 stops29h 30mLufthansa
Tue 12/164:15 pmOPO - PDX
2 stops40h 26mLufthansa
Deal found 11/5$596
This Delta deal was found by Cheapflights users on 11/5. 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 12/35:30 amPDX - OPO
2 stops21h 00mDelta
Tue 12/1611:25 amOPO - PDX
2 stops18h 50mDelta
Deal found 11/5$597
This KLM deal was found by Cheapflights users on 11/5. 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 12/31:25 pmPDX - OPO
1 stop21h 55mKLM
Tue 12/1611:25 amOPO - PDX
2 stops18h 50mKLM
Deal found 11/5$598
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/310:10 amPDX - OPO
2 stops21h 15mUnited Airlines
Tue 12/166:00 amOPO - PDX
2 stops26h 37mUnited Airlines
Deal found 11/5$602
This Ovago deal was found by Cheapflights users on 11/5. 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.
Tue 12/91:14 pmPDX - OPO
2 stops17h 31mLufthansa
Sun 1/111:45 pmOPO - PDX
2 stops42h 54mLufthansa
Deal found 11/5$622
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/315:00 amPDX - OPO
2 stops46h 40mUnited Airlines
Mon 2/212:30 pmOPO - PDX
3 stops62h 18mUnited Airlines
Deal found 11/5$624

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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$490
(United)

One-way from

$361
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$690
Provider with most accurate pricing for Portland-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Porto flights.
Search Deals
From Oregon to Porto
Search Deals
One-way flight from Oregon to Porto
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($241 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 6, 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

EugenePorto

EUG - OPO

EUGOPO

Eugene

Tue 12/2

1:08 pm-1:15 pm

2 stops40h 07m

Porto

Tue 12/9

6:00 am-9:30 pm

2 stops23h 30m

$490

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 12/31

7:45 pm-11:40 pm

2 stops43h 55m

Porto

Mon 2/2

1:45 pm-6:30 pm

2 stops36h 45m

$490

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 12/31

1:25 pm-10:25 pm

1 stop25h 00m

Porto

Wed 1/21

6:00 am-10:15 pm

2 stops24h 15m

$492

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sun 1/11

10:47 am-12:05 pm

2 stops17h 18m

Porto

Sun 2/8

6:00 am-6:10 pm

2 stops20h 10m

$492

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 1/14

1:25 pm-7:20 pm

1 stop21h 55m

Porto

Fri 2/6

6:30 am-5:35 pm

2 stops19h 05m

$492

EugenePorto

EUG - OPO

EUGOPO

Eugene

Tue 12/2

6:47 pm-11:40 am

3 stops32h 53m

Porto

Tue 12/9

6:00 am-10:59 pm

2 stops24h 59m

$503

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 12/31

7:45 pm-11:40 pm

2 stops43h 55m

Porto

Wed 1/21

12:30 pm-6:30 pm

2 stops38h 00m

$507

PortlandPorto

PDX - OPO

PDXOPO

Portland

Thu 1/1

7:30 am-12:50 pm

2 stops21h 20m

Porto

Sat 1/24

1:45 pm-6:30 pm

2 stops36h 45m

$584

PortlandPorto

PDX - OPO

PDXOPO

Portland

Wed 12/3

10:10 am-3:25 pm

2 stops21h 15m

Porto

Tue 12/16

12:30 pm-12:37 am

2 stops20h 07m

$589

PortlandPorto

PDX - OPO

PDXOPO

Portland

Thu 1/1

5:00 am-11:40 am

2 stops46h 40m

Porto

Sun 2/1

12:30 pm-6:48 pm

2 stops38h 18m

$594

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 29 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, November is the cheapest month in which you can book a flight from Oregon to Porto (average of $535). Flying from Oregon to Porto 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 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 November 6, 2025.

A simple way to save on the total cost of your ticket is to fly from Oregon to Porto at noon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the evening.

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 25h. Oregon and Porto are separated by a distance of 5183 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as $404. Users have also found prices from $468 and $472 on United Airlines and Delta, 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, November is the cheapest month in which you can book a flight from Oregon to Porto (average of $535). Flying from Oregon to Porto 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

Traveling to a place near Porto?

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

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Alternative routes for Oregon to Porto

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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$647Average$1,139FlexibilityNo cancel feeOn-time69%
KLMCheapest$647Average$1,081FlexibilityNo cancel feeOn-time75%
DeltaCheapest$709Average$1,079FlexibilityNo cancel feeOn-timeN/A

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