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$449+ Cheap flights from Oslo to Portland (PDX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — PDX
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo to Portland are usually found in November or May, booked 20 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap 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 September 16, 2025.

Round-trip from

$449
(Ticket)

Popular in

July

Cheapest in

November

Average price

$582
From Oslo to Portland
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($197 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Oslo to Portland

Cheapest flights from Oslo to Portland
Explore the most affordable flight options available from Oslo to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Ticket deal was found by Cheapflights users on 9/14. 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.
Sat 11/87:10 amOSL - PDX
2 stops21h 04mBritish Airways
Sun 11/2312:00 pmPDX - OSL
2 stops25h 40mBritish Airways
Deal found 9/14$449
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:15 amOSL - PDX
2 stops19h 59mFinnair
Fri 11/145:45 pmPDX - OSL
2 stops29h 15mFinnair
Deal found 9/15$463
This Ticket deal was found by Cheapflights users on 9/14. 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.
Sat 11/812:40 pmOSL - PDX
1 stop31h 45mKLM
Sun 11/231:25 pmPDX - OSL
1 stop24h 05mKLM
Deal found 9/14$484
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:15 amOSL - PDX
2 stops19h 59mMultiple Airlines
Fri 11/145:45 pmPDX - OSL
1 stop14h 45mMultiple Airlines
Deal found 9/15$486
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:30 amOSL - PDX
1 stop13h 55mKLM
Fri 11/141:25 pmPDX - OSL
1 stop13h 25mKLM
Deal found 9/15$514
This Ticket deal was found by Cheapflights users on 9/14. 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.
Mon 9/296:30 amOSL - PDX
1 stop13h 50mKLM
Sun 10/512:55 pmPDX - OSL
1 stop24h 40mKLM
Deal found 9/14$580
This Delta deal was found by Cheapflights users on 9/14. 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 9/296:30 amOSL - PDX
2 stops21h 21mDelta
Wed 10/83:19 pmPDX - OSL
2 stops20h 21mDelta
Deal found 9/14$586
This Delta deal was found by Cheapflights users on 9/14. 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 9/296:30 amOSL - PDX
2 stops21h 21mDelta
Sun 10/57:15 amPDX - OSL
2 stops19h 35mDelta
Deal found 9/14$591
This Ticket deal was found by Cheapflights users on 9/14. 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 9/284:35 pmOSL - PDX
1 stop27h 45mKLM
Sun 10/512:55 pmPDX - OSL
1 stop24h 40mKLM
Deal found 9/14$597
This lastminute.com deal was found by Cheapflights users on 9/14. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/285:35 pmOSL - PDX
2 stops38h 04mMultiple Airlines
Sun 10/512:55 pmPDX - OSL
1 stop13h 10mMultiple Airlines
Deal found 9/14$612
This Travelis deal was found by Cheapflights users on 9/14. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/284:45 pmTRF - PDX
2 stops27h 35mKLM
Sun 10/512:55 pmPDX - TRF
2 stops14h 55mKLM
Deal found 9/14$817
This lastminute.com deal was found by Cheapflights users on 9/14. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:00 amTRF - PDX
2 stops35h 00mKLM
Sun 10/512:55 pmPDX - TRF
2 stops23h 15mKLM
Deal found 9/14$979

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 September 16, 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

Fri 11/7

8:15 am-7:14 pm

2 stops19h 59m

Portland

Fri 11/14

5:45 pm-8:00 am

2 stops29h 15m

$463

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

3:05 pm-3:55 pm

1 stop33h 50m

Portland

Mon 3/2

7:58 am-6:40 pm

2 stops25h 42m

$469

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

7:05 am-10:46 pm

2 stops24h 41m

Portland

Mon 3/2

2:10 pm-6:40 pm

2 stops19h 30m

$471

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 11/7

6:25 am-7:14 pm

2 stops21h 49m

Portland

Fri 11/14

5:45 pm-10:10 pm

1 stop19h 25m

$486

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Thu 2/19

2:35 pm-10:22 pm

2 stops40h 47m

Portland

Mon 2/23

1:00 pm-2:05 pm

2 stops40h 05m

$655

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Sun 9/28

4:45 pm-11:20 am

2 stops27h 35m

Portland

Sun 10/5

12:55 pm-12:50 pm

2 stops14h 55m

$817

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Sat 9/27

9:00 am-11:00 am

2 stops35h 00m

Portland

Sun 10/5

12:55 pm-9:10 pm

2 stops23h 15m

$979

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Tue 9/30

2:55 pm-5:10 pm

2 stops35h 15m

Portland

Sat 10/4

12:40 pm-2:20 pm

2 stops40h 40m

$1,232

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Sun 9/28

12:15 pm-5:55 pm

2 stops14h 40m

Portland

Sun 10/5

9:55 am-7:15 pm

3 stops24h 20m

$1,660

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Fri 10/10

7:50 am-9:36 pm

2 stops22h 46m

$491

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 20 results
1
2

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 September 12, 2025.

Booking 20 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, November is the cheapest month in which you can book a flight from Oslo to Portland (average of $277). Flying from Oslo to Portland in March is currently the most expensive (average of $368). 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 September 16, 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
7.8
Good
1,385 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,385 reviews
KLM
7.8
Good
1,385 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
4.0
Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 $463, Finnair can have you in Portland from Oslo in 19h 59m. 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 19% 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, November is the cheapest month in which you can book a flight from Oslo to Portland (average of $277). Flying from Oslo to Portland in March is currently the most expensive (average of $368). 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
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Cannon Beach
Long Beach
Longview
Lincoln City
Tigard
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Troutdale
Gresham
Silverton

Browse thousands of different options on Cheapflights for your next trip

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$490Average$705FlexibilityNo cancel feeOn-time75%

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