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$351+ Cheap flights from Oslo to Portland (PDX)

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — PDX
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo to Portland are usually found in May or February, booked 90 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Oslo to Portland

Best flights from Oslo to Portland
Discover carefully curated flight deals from Oslo to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This Ticket deal was found by Cheapflights users on 12/22. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/257:20 amOSL - PDX
2 stops25h 12mBritish Airways
Mon 2/95:45 pmPDX - OSL
1 stop19h 55mBritish Airways
Deal found 12/22$440
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Thu 5/77:45 amOSL - PDX
1 stop18h 55mAmerican Airlines
Mon 5/116:46 amPDX - OSL
2 stops31h 44mAmerican Airlines
Deal found 12/22$487
This Finnair deal was found by Cheapflights users on 12/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:50 pmOSL - PDX
2 stops34h 21mMultiple Airlines
Wed 2/115:45 pmPDX - OSL
2 stops33h 15mMultiple Airlines
Deal found 12/21$494
This Icelandair deal was found by Cheapflights users on 12/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:50 pmOSL - PDX
1 stop13h 10mIcelandair
Tue 5/53:30 pmPDX - OSL
1 stop12h 05mIcelandair
Deal found 12/22$594
This Scandinavian Airlines deal was found by Cheapflights users on 12/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/292:35 pmTRF - PDX
2 stops40h 45mScandinavian Airlines
Mon 2/210:30 amPDX - TRF
2 stops42h 35mScandinavian Airlines
Deal found 12/20$662
This British Airways deal was found by Cheapflights users on 12/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/46:55 amOSL - PDX
2 stops22h 32mBritish Airways
Wed 2/115:45 pmPDX - OSL
1 stop19h 55mBritish Airways
Deal found 12/21$580
This Finnair deal was found by Cheapflights users on 12/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/68:50 pmOSL - PDX
2 stops34h 21mMultiple Airlines
Fri 2/135:45 pmPDX - OSL
2 stops29h 15mMultiple Airlines
Deal found 12/22$590
This Icelandair deal was found by Cheapflights users on 12/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:50 pmOSL - PDX
1 stop13h 10mIcelandair
Thu 5/73:30 pmPDX - OSL
1 stop12h 05mIcelandair
Deal found 12/22$594
This Icelandair deal was found by Cheapflights users on 12/22. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:50 pmOSL - PDX
1 stop13h 10mIcelandair
Thu 5/73:30 pmPDX - OSL
1 stop12h 05mIcelandair
Deal found 12/22$594

Find flight deals from Oslo to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Oslo (OS1) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2025.

Round-trip from

$438
(Ticket)

One-way from

$351
(Finnair)

Popular in

July

Cheapest in

May

Average price

$825
From Oslo to Portland
Search Deals
One-way flight from Oslo to Portland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($192 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo to Portland 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 23, 2025.
Use the filters below to find and compare flights from Oslo to Portland that are best for you.

Fly from

Oslo

Fly to

Portland

Route

Depart

Return

Price

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 1/25

7:20 am-11:32 pm

2 stops25h 12m

Portland

Mon 2/9

5:45 pm-10:40 pm

1 stop19h 55m

$440

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 5/7

7:45 am-5:40 pm

1 stop18h 55m

Portland

Mon 5/11

6:46 am-11:30 pm

2 stops31h 44m

$487

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 2/4

8:50 pm-10:11 pm

2 stops34h 21m

Portland

Wed 2/11

5:45 pm-12:00 pm

2 stops33h 15m

$494

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 2/4

6:55 am-8:27 pm

2 stops22h 32m

Portland

Wed 2/11

5:45 pm-10:40 pm

1 stop19h 55m

$580

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 2/6

8:50 pm-10:11 pm

2 stops34h 21m

Portland

Fri 2/13

5:45 pm-8:00 am

2 stops29h 15m

$590

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/19

1:50 pm-6:00 pm

1 stop13h 10m

Portland

Tue 5/5

3:30 pm-12:35 pm

1 stop12h 05m

$594

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 4/22

1:50 pm-6:00 pm

1 stop13h 10m

Portland

Thu 5/7

3:30 pm-12:35 pm

1 stop12h 05m

$594

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 4/19

1:50 pm-6:00 pm

1 stop13h 10m

Portland

Thu 5/7

3:30 pm-12:35 pm

1 stop12h 05m

$594

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Thu 1/29

2:35 pm-10:20 pm

2 stops40h 45m

Portland

Mon 2/2

10:30 am-2:05 pm

2 stops42h 35m

$662

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 2/28

8:45 am-11:29 pm

2 stops23h 44m

$351

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 12 results
1
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Best time to book a flight from Oslo to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Oslo 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 Oslo to Portland

How far ahead should I book a flight from Oslo to Portland?

Use this chart to determine the optimal time to book a round-trip flight from Oslo to Portland. Price data was last updated on December 19, 2025.

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oslo to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Oslo to Portland?

Currently, September is the cheapest month in which you can book a flight from Oslo to Portland (average of $360). Flying from Oslo to Portland in July is currently the most expensive (average of $693). 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.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated December 23, 2025.
See what other customers who have flown with KLM from Oslo to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,434 reviews

Overall

7.7

Food

7.2

Entertainment

7.1

Comfort

7.6

Crew

8.3

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews

Overall

7.7

Food

7.2

Entertainment

7.1

Comfort

7.6

Crew

8.3

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from Oslo to Portland. 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 Portland from Oslo?

    Located just 6.0 mi from the city center, Portland is the airport most travelers will use when flying to Portland from Oslo. Booking flights from Oslo to Portland (PDX) should be relatively easy as there are 0 daily inbound flights from Oslo from 1 airline.

  • How long is the flight from Oslo to Portland?

    For as low as $487, British Airways can have you in Portland from Oslo in 18h 55m. Oslo and Portland are separated by a distance of 4674 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Oslo to Portland round-trip?

    Currently priced at $490, KLM will fly you from Oslo to Portland and back. In addition to KLM, many other airlines offer competitively priced options for your trip. This flight start at 22% lower than the current average price 3 months from now.

  • Can I find deals for flights from Oslo to Portland that include hotel bookings?

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

  • How can I find direct flights from Oslo to Portland?

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

  • Can I find deals for business class flights from Oslo to Portland?

    Yes. Cheapflights offers flight deals from Oslo to Portland 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 Oslo to Portland?

    Currently, September is the cheapest month in which you can book a flight from Oslo to Portland (average of $360). Flying from Oslo to Portland in July is currently the most expensive (average of $693). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Longview
Lake Oswego
Beaverton
McMinnville
Hillsboro
Troutdale
Cannon Beach
Long Beach
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Tillamook
Pacific City
Gresham

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Alternative routes for Oslo to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Oslo Gardermoen to Portland flights
Sandefjord to Portland flights
Stavanger to Portland flights

Top airline flying from Oslo to Portland

Discover the top airline that operate flights from Oslo to Portland. 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 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$490Average$705FlexibilityNo cancel feeOn-time75%

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