What is the cheapest airline that flies from Portland to Oslo?

British Airways and Scandinavian Airlines are the most popular carriers operating from Portland to Oslo

What airlines fly to Oslo?

Icelandair, Delta and KLM are the top three most popular airlines that fly to Oslo from Portland according to our data. Icelandair is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Oslo. Keep in mind that there are 5 different airlines that fly to Oslo on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Oslo?

Prices for flights from Portland Airport to Oslo are refreshed on a daily basis.

How many operators does momondo search for flights from Portland Airport to Oslo?

As of December 2025, there are 5 operators available to choose from for flights from Portland Airport to Oslo.

How old do you have to be to fly from Portland Airport to Oslo?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Oslo.

What documentation or ID do you need to fly to Oslo?

The travel and health documents required for your trip to Oslo can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oslo. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$503 Cheap Flights from Portland to Oslo in 2025/26

Q: What is the typical price of a round-trip flight between Portland and Oslo?

Prices are currently low for flights on this route. Typical prices usually range from $602 to $1,159. The lowest price recently found on this route was $503.

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Find the cheapest flights from Portland to Oslo

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:56 am - 11:40 pm

PDX

OSL

27h 44m2 stops

9:35 am - 11:19 pm

OSL

PDX

22h 44m2 stops

$503Lufthansa

Wed, Feb 18 - Fri, Feb 27

11:46 am - 10:40 pm

PDX

OSL

25h 54m2 stops

7:10 am - 3:55 pm

OSL

PDX

17h 45m1 stop

$508British Airways

Wed, Feb 18 - Fri, Feb 27

2:05 pm - 10:35 am

PDX

OSL

35h 30m2 stops

8:50 pm - 4:55 pm

OSL

PDX

28h 05m2 stops

$509British Airways

Sat, Feb 28 - Sat, Mar 14

5:45 pm - 10:40 pm

PDX

OSL

19h 55m1 stop

7:10 am - 3:55 pm

OSL

PDX

17h 45m1 stop

$511British Airways

Wed, Feb 18 - Fri, Feb 27

1:30 pm - 2:30 pm

PDX

OSL

16h 00m2 stops

5:00 pm - 11:25 am

OSL

PDX

27h 25m1 stop

$519KLM

Sat, Jan 31 - Sat, Feb 7

7:00 am - 5:10 pm

PDX

OSL

25h 10m2 stops

9:35 am - 10:59 pm

OSL

PDX

22h 24m2 stops

$526United Airlines

Wed, Feb 11 - Sun, Feb 15

1:30 pm - 4:15 pm

PDX

OSL

17h 45m2 stops

9:25 am - 8:25 pm

OSL

PDX

20h 00m2 stops

$530KLM

Sat, Jan 31 - Sat, Feb 7

3:30 pm - 3:25 pm

PDX

OSL

14h 55m1 stop

1:50 pm - 5:55 pm

OSL

PDX

13h 05m1 stop

$531Icelandair

Mon, May 18 - Sun, May 24

7:00 am - 5:10 pm

PDX

OSL

25h 10m2 stops

1:50 pm - 12:38 pm

OSL

PDX

55h 48m3 stops

$547United Airlines

Wed, Feb 11 - Sun, Feb 15

10:30 am - 2:05 pm

PDX

TRF

42h 35m2 stops

5:05 pm - 10:24 pm

TRF

PDX

38h 19m2 stops

$760Scandinavian Airlines

Wed, Feb 11 - Sun, Feb 15

KLM flights from Portland to Oslo

Our best KLM deals on Portland to Oslo flight tickets

KLM

Feb 18

PDX1:25 pmPortland

19h 50m

1 stop

OSL6:15 pmOslo Gardermoen

Feb 27

OSL6:30 amOslo Gardermoen

13h 55m

1 stop

PDX11:25 amPortland

$515

Find similar

KLM

Jan 31

PDX1:30 pmPortland

16h 00m

2 stops

OSL2:30 pmOslo Gardermoen

Feb 7

OSL5:00 pmOslo Gardermoen

27h 25m

1 stop

PDX11:25 amPortland

$519

Find similar

KLM

Feb 18

PDX7:00 amPortland

16h 40m

2 stops

OSL8:40 amOslo Gardermoen

Feb 27

OSL6:30 amOslo Gardermoen

13h 55m

1 stop

PDX11:25 amPortland

$520

Find similar

Scandinavian Airlines flights from Portland to Oslo

Our best Scandinavian Airlines deals on Portland to Oslo flight tickets

Scandinavian Airlines

Feb 22

PDX10:24 amPortland

24h 56m

2 stops

OSL8:20 pmOslo Gardermoen

Feb 26

OSL12:10 pmOslo Gardermoen

19h 14m

2 stops

PDX10:24 pmPortland

$641

Find similar

Scandinavian Airlines

Feb 22

PDX10:24 amPortland

42h 41m

2 stops

TRF2:05 pmOslo Sandefjord

Feb 26

TRF2:35 pmOslo Sandefjord

40h 49m

2 stops

PDX10:24 pmPortland

$670

Find similar

Scandinavian Airlines

Feb 11

PDX10:30 amPortland

42h 35m

2 stops

TRF2:05 pmOslo Sandefjord

Feb 15

TRF5:05 pmOslo Sandefjord

38h 19m

2 stops

PDX10:24 pmPortland

$760

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 2/18

10:56 am-11:40 pm

2 stops27h 44m

Oslo Gardermoen

Fri 2/27

9:35 am-11:19 pm

2 stops22h 44m

$503

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 2/18

11:46 am-10:40 pm

2 stops25h 54m

Oslo Gardermoen

Fri 2/27

7:10 am-3:55 pm

1 stop17h 45m

$508

PortlandOslo

PDX - OSL

PDXOSL

Portland

Sat 2/28

2:05 pm-10:35 am

2 stops35h 30m

Oslo Gardermoen

Sat 3/14

8:50 pm-4:55 pm

2 stops28h 05m

$509

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 2/18

5:45 pm-10:40 pm

1 stop19h 55m

Oslo Gardermoen

Fri 2/27

7:10 am-3:55 pm

1 stop17h 45m

$511

PortlandOslo

PDX - OSL

PDXOSL

Portland

Sat 1/31

1:30 pm-2:30 pm

2 stops16h 00m

Oslo Gardermoen

Sat 2/7

5:00 pm-11:25 am

1 stop27h 25m

$519

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 2/11

7:00 am-5:10 pm

2 stops25h 10m

Oslo Gardermoen

Sun 2/15

9:35 am-10:59 pm

2 stops22h 24m

$526

PortlandOslo

PDX - OSL

PDXOSL

Portland

Sat 1/31

1:30 pm-4:15 pm

2 stops17h 45m

Oslo Gardermoen

Sat 2/7

9:25 am-8:25 pm

2 stops20h 00m

$530

PortlandOslo

PDX - OSL

PDXOSL

Portland

Mon 5/18

3:30 pm-3:25 pm

1 stop14h 55m

Oslo Gardermoen

Sun 5/24

1:50 pm-5:55 pm

1 stop13h 05m

$531

PortlandOslo

PDX - OSL

PDXOSL

Portland

Wed 2/11

7:00 am-5:10 pm

2 stops25h 10m

Oslo Gardermoen

Sun 2/15

1:50 pm-12:38 pm

3 stops55h 48m

$547

PortlandOslo

PDX - TRF

PDXTRF

Portland

Wed 2/11

10:30 am-2:05 pm

2 stops42h 35m

Oslo Sandefjord

Sun 2/15

5:05 pm-10:24 pm

2 stops38h 19m

$760

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Oslo

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Portland and Oslo?

What is the cheapest month to fly to Oslo?

The month of November is, on average, the cheapest month to fly to Oslo from Portland, with most prices found around $549. If you’re not able to fly to Oslo in November, then October is your next best option. Flight prices from Portland to Oslo during October average around $578.

What is the cheapest day to depart on your flight to Oslo?

The cheapest day to depart on your flight to Oslo is on a Tuesday when prices can be found for as low as $971. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Oslo for around $1,320.

What is the cheapest time of day to depart on your flight to Oslo?

Flying to Oslo from Portland in the morning is the least expensive time of day to depart. momondo users have found prices as low as $926 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around $1,216. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Oslo?

You are more likely to see cheaper flights to Oslo from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Oslo for around $809 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Oslo from Portland for as low as $614 on momondo.

Cheap Portland to Oslo flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Oslo

Fastest flight time	11h 20m
Direct flights	None

The fastest flight from Portland to Oslo takes 11h 20m

There are no direct flights from Portland to Oslo. There are no popular flight routes from Portland to Oslo.

Search flight deals

How far is Portland to Oslo by plane?
Oslo is 4689.3 mi away from Portland. Typically, this will take 11h 20m by plane in normal conditions.
When did momondo last update prices for flights from Portland Airport to Oslo?
Prices for flights from Portland Airport to Oslo are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Oslo?
As of December 2025, there are 5 operators available to choose from for flights from Portland Airport to Oslo.
How old do you have to be to fly from Portland Airport to Oslo?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Oslo.
What documentation or ID do you need to fly to Oslo?
The travel and health documents required for your trip to Oslo can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Oslo. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Oslo

Compare and see reviews for airlines that fly from Portland to Oslo with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $317	Free Cancellation	Rating 7.4 1,606 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $436	Free Cancellation	Rating 7.0 591 reviews	Search Icelandair flights
British Airways	PriceFrom $579	Free Cancellation	Rating 6.7 7,585 reviews	Search British Airways flights
Delta	PriceFrom $590	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
KLM	PriceFrom $607	Free Cancellation	Rating 7.7 1,430 reviews	Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Oslo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oslo from Portland.

Can I find flights from Portland to Oslo with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to Oslo flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to Oslo?

momondo provides multiple filters to help you find the best flight to Oslo from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Oslo right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Oslo flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.