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$341+ Cheap flights from Portland (PDX) to Oslo

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — OSL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Oslo are usually found in October or September, booked 37 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Portland to Oslo

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Oslo (OS1). 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 15, 2025.

Round-trip from

$484
(FlightHub)

One-way from

$341
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$639
From Portland to Oslo
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One-way flight from Portland to Oslo
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Highest demand for flights based on searches. 25% potential increase in price ($287 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Portland to Oslo

Cheapest flights from Portland to Oslo
Explore the most affordable flight options available from Portland to Oslo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:23 amPDX - OSL
2 stops23h 52mScandinavian Airlines
Sun 10/266:55 pmOSL - PDX
2 stops35h 59mScandinavian Airlines
Deal found 9/13$484
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/243:20 pmPDX - OSL
1 stop12h 15mIcelandair
Fri 10/311:10 pmOSL - PDX
1 stop12h 50mIcelandair
Deal found 9/15$485
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/133:20 pmPDX - OSL
1 stop12h 15mIcelandair
Mon 10/204:45 pmOSL - PDX
1 stop34h 10mIcelandair
Deal found 9/15$503
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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.
Tue 10/2812:40 pmPDX - OSL
2 stops22h 35mScandinavian Airlines
Tue 11/410:00 amOSL - PDX
2 stops20h 04mScandinavian Airlines
Deal found 9/13$506
This Scandinavian Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 11/1212:46 pmPDX - TRF
2 stops40h 19mScandinavian Airlines
Sun 11/162:35 pmTRF - PDX
2 stops41h 21mScandinavian Airlines
Deal found 9/12$516
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:46 pmPDX - OSL
2 stops20h 29mScandinavian Airlines
Sun 11/169:05 pmOSL - PDX
2 stops34h 51mScandinavian Airlines
Deal found 9/14$518
This oojo deal was found by Cheapflights users on 9/13. 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.
Wed 10/153:20 pmPDX - OSL
1 stop12h 15mIcelandair
Mon 10/204:45 pmOSL - PDX
1 stop34h 10mIcelandair
Deal found 9/13$545
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:15 amPDX - OSL
2 stops32h 40mMultiple Airlines
Tue 10/219:45 amOSL - PDX
2 stops22h 16mMultiple Airlines
Deal found 9/14$553
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:40 pmPDX - OSL
2 stops22h 35mScandinavian Airlines
Thu 11/69:00 amOSL - PDX
2 stops21h 04mScandinavian Airlines
Deal found 9/15$586
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/159:55 amPDX - OSL
2 stops23h 05mMultiple Airlines
Mon 10/201:00 pmOSL - PDX
2 stops58h 46mMultiple Airlines
Deal found 9/14$589
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/159:55 amPDX - OSL
2 stops23h 05mUnited Airlines
Tue 10/216:35 amOSL - PDX
3 stops25h 10mUnited Airlines
Deal found 9/14$602
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:15 amPDX - OSL
2 stops45h 50mMultiple Airlines
Mon 10/201:55 pmOSL - PDX
2 stops41h 30mMultiple Airlines
Deal found 9/15$603

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Oslo 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 15, 2025.
Use the filters below to find and compare flights from Portland to Oslo that are best for you.

Fly from

Portland

Fly to

Oslo

Route

Depart

Return

Price

PortlandOslo

PDX - TRF

PDXTRF

Portland

Wed 11/12

12:46 pm-2:05 pm

2 stops40h 19m

Oslo Sandefjord

Sun 11/16

2:35 pm-10:56 pm

2 stops41h 21m

$516

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 11/12

12:46 pm-6:15 pm

2 stops20h 29m

Oslo Gardermoen

Sun 11/16

6:55 pm-10:56 pm

2 stops37h 01m

$518

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

3:20 pm-12:35 pm

1 stop12h 15m

Oslo Gardermoen

Sun 10/26

9:30 pm-6:00 pm

1 stop28h 30m

$545

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

6:15 am-11:55 pm

2 stops32h 40m

Oslo Gardermoen

Tue 10/21

9:45 am-11:01 pm

2 stops22h 16m

$553

PortlandOslo

PDX - OSL

PDXOSL

Portland

Tue 10/28

7:00 pm-1:00 pm

2 stops34h 00m

Oslo Gardermoen

Tue 11/4

6:15 am-9:15 am

3 stops36h 00m

$567

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

9:55 am-6:00 pm

2 stops23h 05m

Oslo Gardermoen

Tue 10/21

6:35 am-10:45 pm

3 stops25h 10m

$602

PortlandOslo

PDX - OSL

PDXOSL

Portland

Mon 10/13

6:15 am-1:05 pm

2 stops45h 50m

Oslo Gardermoen

Mon 10/20

1:55 pm-10:25 pm

2 stops41h 30m

$603

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

6:15 am-6:05 pm

2 stops26h 50m

Oslo Gardermoen

Mon 10/20

1:00 pm-6:46 pm

2 stops38h 46m

$607

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

1:25 pm-6:50 pm

2 stops20h 25m

Oslo Gardermoen

Mon 10/20

6:30 am-11:20 am

1 stop13h 50m

$608

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 11/12

5:14 am-6:50 pm

2 stops28h 36m

Oslo Gardermoen

Sun 11/16

9:25 am-11:25 am

1 stop35h 00m

$608

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 26 results
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Best time to book a flight from Portland to Oslo

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

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Oslo. Price data was last updated on September 12, 2025.

Booking 37 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Oslo. 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 Portland to Oslo?

Currently, November is the cheapest month in which you can book a flight from Portland to Oslo (average of $567). Flying from Portland to Oslo in June is currently the most expensive (average of $1,006). 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 PDX to OSL?

Find hourly flight availability from Portland to Oslo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

One of the essential ways to save on airfare from Portland to Oslo is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 25% on airfare.

What is the cheapest day to fly from Portland to Oslo?

Use this chart to determine the cheapest time to fly round-trip from Portland to Oslo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Oslo flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Reviews of airlines servicing Oslo

Get insights into the airlines that provide service to Oslo. 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 Oslo. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Portland to Oslo, such as Delta, KLM, and Scandinavian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,385 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.4
Good
1,484 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Icelandair
7.0
Good
544 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

    For a flight from Portland to Oslo, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to Oslo per day. 5 airlines have flights to Oslo from Portland on a regular basis.

  • How long is the flight from Portland to Oslo?

    Departing from Portland to Oslo will take you 12h 15m. There are 4674 mi between Portland and Oslo. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Portland to Oslo round-trip?

    Scandinavian Airlines, at $317, was found to be the cheapest airline from Portland to Oslo.Alternate airlines to your destination round-trip include Icelandair and British Airways. Scandinavian Airlines is 62% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Portland to Oslo (average of $567). Flying from Portland to Oslo in June is currently the most expensive (average of $1,006). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Portland to Oslo

Discover the top 5 airlines that operate flights from Portland to Oslo. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$317Average$788FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$498Average$996FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$581Average$946FlexibilityNo cancel feeOn-time70%
DeltaCheapest$588Average$973FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$607Average$962FlexibilityNo cancel feeOn-time75%

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