HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oslo

$260+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — OSL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Oslo 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 Portland to Oslo are usually found in February or January, 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 July 3, 2025.

Round-trip from

$441
(Trip.com)

One-way from

$260
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,206
From Portland to Oslo
Search Deals
One-way flight from Portland to Oslo
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($253 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 3, 2025.

This Trip.com deal was found by Cheapflights users on 7/1. 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 Trip.com 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 7/1$441
This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:00 amPDX - OSL
2 stops24h 15mScandinavian Airlines
Mon 10/204:10 pmOSL - PDX
2 stops39h 10mScandinavian Airlines
Deal found 7/2$599
This Delta deal was found by Cheapflights users on 7/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:45 pmPDX - OSL
2 stops17h 55mDelta
Mon 10/206:30 amOSL - PDX
1 stop13h 50mDelta
Deal found 7/3$626
This Scandinavian Airlines deal was found by Cheapflights users on 7/2. 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.
Wed 11/1210:00 amPDX - TRF
2 stops43h 05mScandinavian Airlines
Sun 11/162:35 pmTRF - PDX
2 stops40h 45mScandinavian Airlines
Deal found 7/2$632
This KLM deal was found by Cheapflights users on 6/30. 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.
Wed 10/11:15 pmPDX - OSL
1 stop22h 40mKLM
Sun 10/57:15 pmOSL - PDX
1 stop25h 05mKLM
Deal found 6/30$641
This KAYAK deal was found by Cheapflights users on 7/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:25 pmPDX - OSL
1 stop19h 05mBritish Airways
Mon 10/208:35 pmOSL - PDX
2 stops34h 12mBritish Airways
Deal found 7/1$671
This Air France deal was found by Cheapflights users on 6/30. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:15 pmPDX - OSL
1 stop22h 40mMultiple Airlines
Sun 10/56:05 amOSL - PDX
2 stops17h 46mMultiple Airlines
Deal found 6/30$700
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Sat 8/911:59 pmPDX - OSL
2 stops32h 16mUnited Airlines
Thu 8/216:35 amOSL - PDX
2 stops24h 50mUnited Airlines
Deal found 7/1$716
This Finnair deal was found by Cheapflights users on 7/2. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/161:20 pmPDX - OSL
2 stops21h 45mFinnair
Sat 8/238:35 amOSL - PDX
2 stops23h 51mFinnair
Deal found 7/2$734
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 8/167:25 pmPDX - OSL
1 stop19h 10mAmerican Airlines
Sat 8/238:20 amOSL - PDX
2 stops21h 55mAmerican Airlines
Deal found 7/2$770
This Gurufare deal was found by Cheapflights users on 7/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/93:20 pmPDX - TRF
2 stops20h 50mMultiple Airlines
Sat 8/3012:15 pmTRF - PDX
2 stops14h 40mMultiple Airlines
Deal found 7/1$1,242

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 July 3, 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 - OSL

PDXOSL

Portland

Wed 10/15

3:20 pm-12:35 pm

1 stop12h 15m

Oslo Gardermoen

Mon 10/20

4:45 pm-5:55 pm

1 stop34h 10m

$441

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

10:00 am-7:15 pm

2 stops24h 15m

Oslo Gardermoen

Mon 10/20

4:10 pm-10:20 pm

2 stops39h 10m

$599

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

5:45 pm-8:40 pm

2 stops17h 55m

Oslo Gardermoen

Mon 10/20

6:30 am-11:20 am

1 stop13h 50m

$626

PortlandOslo

PDX - TRF

PDXTRF

Portland

Wed 11/12

10:00 am-2:05 pm

2 stops43h 05m

Oslo Sandefjord

Sun 11/16

2:35 pm-10:20 pm

2 stops40h 45m

$632

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/1

1:15 pm-8:55 pm

1 stop22h 40m

Oslo Gardermoen

Sun 10/5

7:15 pm-11:20 am

1 stop25h 05m

$641

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/15

7:25 pm-11:30 pm

1 stop19h 05m

Oslo Gardermoen

Mon 10/20

8:35 pm-9:47 pm

2 stops34h 12m

$671

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 10/1

1:15 pm-8:55 pm

1 stop22h 40m

Oslo Gardermoen

Sun 10/5

6:05 am-2:51 pm

2 stops17h 46m

$700

PortlandOslo

PDX - OSL

PDXOSL

Portland

Sat 8/9

11:59 pm-5:15 pm

2 stops32h 16m

Oslo Gardermoen

Thu 8/21

6:35 am-10:25 pm

2 stops24h 50m

$716

PortlandOslo

PDX - OSL

PDXOSL

Portland

Sat 8/16

1:20 pm-8:05 pm

2 stops21h 45m

Oslo Gardermoen

Sat 8/23

8:35 am-11:26 pm

2 stops23h 51m

$734

PortlandOslo

PDX - OSL

PDXOSL

Portland

Sat 8/16

7:25 pm-11:35 pm

1 stop19h 10m

Oslo Gardermoen

Sat 8/23

8:20 am-9:15 pm

2 stops21h 55m

$770

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 18 results
1
2

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 June 27, 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 $1,012). 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 July 3, 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 July 3, 2025.
Read through reviews of airlines operating flights from Portland to Oslo, such as Delta, KLM, and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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!
Finnair
7.6
Good
1,306 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
7.3
Good
1,416 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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.

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

    Icelandair, at $441, was found to be the cheapest airline from Portland to Oslo.Alternate airlines to your destination round-trip include Scandinavian Airlines and Delta. Icelandair is 52% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Portland to Oslo one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $342. Users have also found prices from $472 and $511 on Delta and Air Canada, respectively.

  • 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 $1,012). 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

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

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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$317Average$826FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$495Average$1,058FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$581Average$965FlexibilityNo cancel feeOn-time70%
DeltaCheapest$589Average$949FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$607Average$1,024FlexibilityNo 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.