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$363+ 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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — PDX
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap 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 February 3, 2026.

This Ticket deal was found by Cheapflights users on 2/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/229:30 pm
OSL
-
PDX
1 stop28h 30m
Icelandair
Sat 4/43:30 pm
PDX
-
OSL
1 stop12h 05m
Icelandair
Deal found 2/1$487
This Ticket deal was found by Cheapflights users on 2/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:15 am
OSL
-
PDX
2 stops21h 30m
Lufthansa
Wed 5/62:24 pm
PDX
-
OSL
2 stops22h 41m
Lufthansa
Deal found 2/1$538
This Ticket deal was found by Cheapflights users on 2/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:35 am
OSL
-
PDX
2 stops23h 47m
Multiple Airlines
Sun 9/131:05 pm
PDX
-
OSL
1 stop14h 25m
Multiple Airlines
Deal found 2/1$543
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:30 am
OSL
-
PDX
1 stop13h 40m
Delta
Wed 5/67:32 pm
PDX
-
OSL
2 stops16h 08m
Delta
Deal found 2/1$568
This KLM deal was found by Cheapflights users on 2/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/86:30 am
OSL
-
PDX
1 stop13h 55m
KLM
Wed 3/112:25 pm
PDX
-
OSL
1 stop17h 50m
KLM
Deal found 2/1$585
This KLM deal was found by Cheapflights users on 2/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/86:30 am
OSL
-
PDX
1 stop13h 55m
KLM
Tue 3/107:00 am
PDX
-
OSL
2 stops17h 40m
KLM
Deal found 2/1$589
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 4/2211:35 am
OSL
-
PDX
1 stop15h 05m
American Airlines
Sun 4/263:16 pm
PDX
-
OSL
2 stops34h 14m
American Airlines
Deal found 2/2$596
This Lufthansa deal was found by Cheapflights users on 2/3. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/51:45 pm
OSL
-
PDX
2 stops19h 50m
Lufthansa
Thu 3/127:49 pm
PDX
-
OSL
2 stops19h 51m
Lufthansa
Deal found 2/3$600
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:25 am
OSL
-
PDX
3 stops51h 28m
United Airlines
Sun 9/1310:59 pm
PDX
-
OSL
2 stops28h 21m
United Airlines
Deal found 2/1$603
This Travelis deal was found by Cheapflights users on 2/1. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/222:00 pm
TRF
-
PDX
2 stops30h 25m
KLM
Sat 4/41:05 pm
PDX
-
TRF
2 stops22h 55m
KLM
Deal found 2/1$1,007
This Scandinavian Airlines deal was found by Cheapflights users on 2/2. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:35 pm
TRF
-
PDX
2 stops39h 51m
Scandinavian Airlines
Sun 11/110:00 am
PDX
-
TRF
2 stops43h 05m
Scandinavian Airlines
Deal found 2/2$1,122
This Ticket deal was found by Cheapflights users on 2/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/282:25 pm
TRF
-
PDX
2 stops39h 58m
Scandinavian Airlines
Mon 4/61:10 pm
PDX
-
TRF
2 stops40h 20m
Scandinavian Airlines
Deal found 2/1$1,354

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 February 3, 2026.

Round-trip from

$487
(Ticket)

One-way from

$363
(Finnair)

Popular in

December

Cheapest in

May

Average price

$515
From Oslo to Portland
Search Deals
One-way flight from Oslo to Portland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($98 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 3, 2026.
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 3/22

9:30 pm-6:00 pm

1 stop28h 30m

Portland

Sat 4/4

3:30 pm-12:35 pm

1 stop12h 05m

$487

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 5/2

6:15 am-6:45 pm

2 stops21h 30m

Portland

Wed 5/6

2:24 pm-10:05 pm

2 stops22h 41m

$538

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sat 5/2

6:30 am-11:10 am

1 stop13h 40m

Portland

Wed 5/6

7:32 pm-8:40 pm

2 stops16h 08m

$568

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 4/22

11:35 am-5:40 pm

1 stop15h 05m

Portland

Sun 4/26

3:16 pm-10:30 am

2 stops34h 14m

$596

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 4/22

6:35 am-11:46 am

2 stops38h 11m

Portland

Sun 4/26

12:50 pm-10:05 pm

2 stops24h 15m

$600

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Thu 3/5

1:45 pm-12:35 am

2 stops19h 50m

Portland

Thu 3/12

7:49 pm-11:40 pm

2 stops19h 51m

$600

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Wed 4/22

11:35 am-5:40 pm

1 stop15h 05m

Portland

Sun 4/26

7:30 pm-10:30 am

1 stop30h 00m

$636

OsloPortland

OSL - PDX

OSLPDX

Oslo Gardermoen

Sun 3/22

8:50 pm-4:55 pm

2 stops28h 05m

Portland

Sat 4/4

6:35 am-12:05 pm

2 stops20h 30m

$649

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Sun 3/22

2:00 pm-12:25 pm

2 stops30h 25m

Portland

Sat 4/4

1:05 pm-9:00 pm

2 stops22h 55m

$1,007

OsloPortland

TRF - PDX

TRFPDX

Oslo Sandefjord

Sat 3/28

2:25 pm-10:23 pm

2 stops39h 58m

Portland

Mon 4/6

1:10 pm-2:30 pm

2 stops40h 20m

$1,354

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 19 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 January 30, 2026.

Booking 13 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 $414). Flying from Oslo to Portland in December is currently the most expensive (average of $792). 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 February 3, 2026.
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
1,448 reviews

Overall

7.7

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,448 reviews
KLM
7.7
Good
1,448 reviews

Overall

7.7

Crew

8.4

Comfort

7.6

Boarding

7.8

Entertainment

7.1

Food

7.3

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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 $568, Icelandair can have you in Portland from Oslo in 13h 40m. 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 $498, 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 25% 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 $414). Flying from Oslo to Portland in December is currently the most expensive (average of $792). 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
Hillsboro
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Depoe Bay
Wilsonville
Stevenson
Tillamook
Pacific City
Gresham

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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$498Average$705FlexibilityNo cancel feeOn-time75%

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