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$368+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — OPO
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$744
(Air Canada)

One-way from

$368
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,198
Provider with most accurate pricing for Portland-Porto flight deals.
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Provider most trusted by Cheapflights users for Portland-Porto flights.
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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. 19% potential increase in price ($270 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Air Canada deal was found by Cheapflights users on 4/30. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:40 pmPDX - OPO
2 stops38h 35mAir Canada
Sun 10/266:15 amOPO - PDX
2 stops39h 29mAir Canada
Deal found 4/30$744
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:54 amPDX - OPO
1 stop15h 51mUnited Airlines
Tue 10/216:00 amOPO - PDX
2 stops20h 31mUnited Airlines
Deal found 4/29$812
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 10/1811:20 amPDX - OPO
2 stops20h 10mDelta
Sun 10/265:00 amOPO - PDX
1 stop14h 25mDelta
Deal found 4/29$844
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/181:15 pmPDX - OPO
1 stop20h 55mKLM
Sun 10/265:00 amOPO - PDX
1 stop14h 25mKLM
Deal found 4/29$845
This United deal was found by Cheapflights users on 4/30. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:59 amPDX - OPO
1 stop15h 46mMultiple Airlines
Tue 10/76:00 amOPO - PDX
2 stops35h 21mMultiple Airlines
Deal found 4/30$948
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/262:05 pmPDX - OPO
2 stops17h 50mAmerican Airlines
Mon 9/88:15 amOPO - PDX
2 stops22h 49mAmerican Airlines
Deal found 4/30$1,012
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/319:53 amPDX - OPO
2 stops21h 52mLufthansa
Wed 8/136:15 amOPO - PDX
2 stops19h 21mLufthansa
Deal found 4/30$1,040
This KAYAK deal was found by Cheapflights users on 4/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2812:59 amPDX - OPO
2 stops26h 41mBritish Airways
Tue 8/1212:20 pmOPO - PDX
2 stops36h 27mBritish Airways
Deal found 4/29$1,112
This Justfly.com deal was found by Cheapflights users on 4/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1911:35 pmPDX - OPO
2 stops40h 05mTAP AIR PORTUGAL
Mon 7/76:05 pmOPO - PDX
1 stop36h 05mTAP AIR PORTUGAL
Deal found 4/29$1,642
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/291:39 pmPDX - OPO
2 stops42h 11mTurkish Airlines
Tue 5/610:50 amOPO - PDX
2 stops42h 03mTurkish Airlines
Deal found 4/29$2,037

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 May 1, 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

Sat 10/18

7:40 pm-6:15 pm

2 stops38h 35m

Porto

Sun 10/26

6:15 am-2:44 pm

2 stops39h 29m

$744

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 10/7

9:54 am-9:45 am

1 stop15h 51m

Porto

Tue 10/21

6:00 am-6:31 pm

2 stops20h 31m

$812

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sat 10/18

11:20 am-3:30 pm

2 stops20h 10m

Porto

Sun 10/26

5:00 am-12:25 pm

1 stop14h 25m

$844

PortlandPorto

PDX - OPO

PDXOPO

Portland

Sat 10/18

1:15 pm-6:10 pm

1 stop20h 55m

Porto

Sun 10/26

5:00 am-12:25 pm

1 stop14h 25m

$845

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 9/9

9:59 am-9:45 am

1 stop15h 46m

Porto

Tue 10/7

6:00 am-9:21 am

2 stops35h 21m

$948

PortlandPorto

PDX - OPO

PDXOPO

Portland

Tue 8/26

2:05 pm-3:55 pm

2 stops17h 50m

Porto

Mon 9/8

8:15 am-11:04 pm

2 stops22h 49m

$1,012

PortlandPorto

PDX - OPO

PDXOPO

Portland

Thu 7/31

9:53 am-3:45 pm

2 stops21h 52m

Porto

Wed 8/13

6:15 am-5:36 pm

2 stops19h 21m

$1,040

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 7/28

12:59 am-11:40 am

2 stops26h 41m

Porto

Tue 8/12

12:20 pm-4:47 pm

2 stops36h 27m

$1,112

PortlandPorto

PDX - OPO

PDXOPO

Portland

Thu 6/19

11:35 pm-11:40 pm

2 stops40h 05m

Porto

Mon 7/7

6:05 pm-10:10 pm

1 stop36h 05m

$1,642

PortlandPorto

PDX - OPO

PDXOPO

Portland

Mon 5/12

3:20 pm-10:15 am

3 stops34h 55m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 18 results
1
2

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 $1,071). 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 May 1, 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.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $596. Users have also found prices from $608 and $623 on United Airlines and Air Canada, 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 $1,071). 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 Oregon?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Oregon to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Oregon to Porto

Discover the top 4 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$658Average$1,224FlexibilityNo cancel feeOn-time67%
DeltaCheapest$704Average$1,095FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$731Average$1,185FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$733Average$1,212FlexibilityNo cancel feeOn-time69%

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