HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$330+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — PDX
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oslo to Portland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

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 November 3, 2025.

This Ticket deal was found by Cheapflights users on 11/2. 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 11/101:10 pmOSL - PDX
1 stop12h 50mIcelandair
Mon 11/242:45 pmPDX - OSL
1 stop11h 50mIcelandair
Deal found 11/2$490
This ResecentrumGruppen deal was found by Cheapflights users on 11/1. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:05 pmOSL - PDX
1 stop12h 55mIcelandair
Mon 11/242:45 pmPDX - OSL
1 stop11h 50mIcelandair
Deal found 11/1$503
This ResecentrumGruppen deal was found by Cheapflights users on 11/1. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:50 pmOSL - PDX
2 stops19h 36mLufthansa
Mon 11/2412:55 pmPDX - OSL
2 stops17h 25mLufthansa
Deal found 11/1$610
This Ticket deal was found by Cheapflights users on 11/2. 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 11/106:45 amOSL - PDX
2 stops22h 44mMultiple Airlines
Mon 11/2412:55 pmPDX - OSL
2 stops19h 35mMultiple Airlines
Deal found 11/2$612
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 11/107:20 amOSL - PDX
1 stop17h 35mAmerican Airlines
Mon 11/245:45 pmPDX - OSL
1 stop35h 25mAmerican Airlines
Deal found 11/2$617
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Sun 11/97:20 amOSL - PDX
2 stops24h 05mAmerican Airlines
Mon 11/245:45 pmPDX - OSL
1 stop35h 25mAmerican Airlines
Deal found 11/1$634
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 11/109:35 amOSL - PDX
2 stops20h 03mUnited Airlines
Mon 11/2410:05 amPDX - OSL
2 stops17h 50mUnited Airlines
Deal found 11/2$648
This Delta deal was found by Cheapflights users on 11/2. 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 11/106:30 amOSL - PDX
1 stop13h 55mDelta
Mon 11/241:25 pmPDX - OSL
1 stop19h 50mDelta
Deal found 11/2$697
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.
Fri 11/76:15 amOSL - PDX
2 stops25h 21mUnited Airlines
Fri 11/145:00 amPDX - OSL
2 stops27h 40mUnited Airlines
Deal found 11/3$767
This Cheapflightsfares deal was found by Cheapflights users on 11/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:45 pmOSL - PDX
2 stops19h 41mLufthansa
Fri 11/1410:05 amPDX - OSL
2 stops28h 15mLufthansa
Deal found 11/1$768

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 November 3, 2025.

Round-trip from

$555
(American Airlines)

One-way from

$330
(Finnair)

Popular in

July

Cheapest in

November

Average price

$488
From Oslo to Portland
Search Deals
One-way flight from Oslo to Portland
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($32 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 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 November 3, 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

Thu 2/26

11:45 am-10:50 am

2 stops32h 05m

Portland

Mon 3/2

11:46 am-10:40 pm

2 stops25h 54m

$555

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

1:45 pm-12:44 am

2 stops19h 59m

Portland

Mon 3/2

4:00 pm-5:40 pm

2 stops16h 40m

$558

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

3:05 pm-3:55 pm

1 stop33h 50m

Portland

Mon 3/2

5:45 pm-6:40 pm

1 stop15h 55m

$587

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 2/26

6:30 am-8:59 pm

2 stops23h 29m

Portland

Mon 3/2

1:25 pm-4:15 pm

1 stop17h 50m

$613

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

$641

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Thu 2/19

9:40 am-11:25 am

2 stops34h 45m

Portland

Mon 2/23

1:25 pm-6:45 pm

2 stops44h 20m

$835

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 4/16

7:45 am-5:40 pm

1 stop18h 55m

$330

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 2/28

6:25 am-7:39 pm

2 stops22h 14m

$338

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 2/28

8:50 pm-9:48 pm

2 stops33h 58m

$338

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 2/28

6:30 pm-3:55 pm

1 stop30h 25m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 15 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 October 31, 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, 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 $686). 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.

How much does it cost to fly round-trip from Oslo to Portland?

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 November 3, 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
1,405 reviews

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,405 reviews
KLM
7.7
Good
1,405 reviews

Entertainment

7.1

Food

7.3

Crew

8.4

Overall

7.7

Boarding

7.8

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 $558, American Airlines 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 21% 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 $686). 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
Lake Oswego
Beaverton
McMinnville
Hillsboro
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Gresham
Tillamook
Troutdale

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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
Stavanger to Portland flights
Sandefjord 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$490Average$705FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.