$422 Find Cheap Flights from Oslo to Portland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oslo to Portland departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Portland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Portland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Oslo to Portland, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$641
Typical prices: $793-$515
Delta
Mon 5/25Tue 6/9
OSL - PDX • 1 stop
Cheapest one-way
$422
Typical prices: $525-$907
Multiple Airlines
Mon 9/28
OSL - PDX • 2 stops
Top airlines
Cheapest • from $641 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 29% compared to booking last minute.
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Portland!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Oslo to Portland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oslo to Portland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Oslo to Portland

Mon, May 25 - Tue, Jun 9
Delta Logo
6:30 am - 11:10 am
OSL
-
PDX
13h 40m
1 stop
Delta Logo
3:26 pm - 8:40 pm
PDX
-
OSL
20h 14m
2 stops
$641Delta
Mon, May 25 - Tue, Jun 9
Delta Logo
6:30 am - 5:11 pm
OSL
-
PDX
19h 41m
2 stops
Delta Logo
3:26 pm - 8:40 pm
PDX
-
OSL
20h 14m
2 stops
$646Delta
Tue, May 26 - Mon, Jun 8
Air Canada Logo
6:55 am - 9:30 am
OSL
-
PDX
35h 35m
2 stops
Air Canada Logo
10:10 am - 1:15 pm
PDX
-
OSL
42h 05m
2 stops
$702Air Canada
Tue, May 26 - Tue, Jun 9
Air Canada Logo
6:55 am - 7:05 pm
OSL
-
PDX
21h 10m
2 stops
Air Canada Logo
3:30 pm - 6:00 pm
PDX
-
OSL
17h 30m
2 stops
$705Air Canada
Thu, Jul 23 - Thu, Aug 6
United Airlines Logo
6:45 am - 11:03 pm
OSL
-
PDX
25h 18m
2 stops
United Airlines Logo
11:05 am - 10:05 pm
PDX
-
OSL
26h 00m
2 stops
$711United Airlines
Wed, Jul 22 - Mon, Aug 3
United Airlines Logo
6:35 am - 12:50 am
OSL
-
PDX
27h 15m
3 stops
United Airlines Logo
10:52 pm - 5:15 pm
PDX
-
OSL
33h 23m
2 stops
$712United Airlines
Fri, Aug 14 - Tue, Aug 25
United Airlines Logo
6:25 am - 8:20 pm
OSL
-
PDX
22h 55m
2 stops
United Airlines Logo
4:07 pm - 10:05 pm
PDX
-
OSL
20h 58m
2 stops
$714United Airlines
Sun, May 24 - Mon, Jun 8
KLM Logo
7:15 pm - 11:10 am
OSL
-
PDX
24h 55m
1 stop
KLM Logo
1:05 pm - 8:45 am
PDX
-
OSL
34h 40m
1 stop
$722KLM
Sun, May 24 - Tue, Jun 9
Lufthansa Logo
7:10 am - 5:44 pm
OSL
-
PDX
19h 34m
2 stops
Lufthansa Logo
3:30 pm - 6:00 pm
PDX
-
OSL
17h 30m
2 stops
$724Lufthansa
Sun, Aug 16 - Wed, Aug 26
KLM Logo
12:10 pm - 11:10 am
TRF
-
PDX
32h 00m
2 stops
KLM Logo
1:05 pm - 2:30 pm
PDX
-
TRF
16h 25m
2 stops
$1,251KLM
Booking Insights

KAYAK's insights & trends for Oslo to Portland flights

Get data-powered insights and trends into flights from Oslo to Portland to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Oslo to Portland?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Oslo to Portland departing in May.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Oslo to Portland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Oslo to Portland is September, where tickets cost $406 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $675 and $625 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Oslo to Portland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Oslo to Portland, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Cheapest flight$422
Flight from Oslo Airport to Portland

When to book flights from Oslo to Portland

Are your dates flexible? Find out the best times to travel from Oslo to Portland based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Oslo to Portland

  • What is the cheapest flight from Oslo to Portland?

    In the last 3 days, the lowest price for a flight from Oslo to Portland was $422 for a one-way ticket and $641 for a round-trip.

  • Do I need a passport to fly between Oslo and Portland?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Oslo and on arrival in Portland.

  • Which airports will I be using when flying from Oslo to Portland?

    Oslo has 2 major airports: Oslo Gardermoen and Oslo Sandefjord. Portland is the only airport in Portland. You’ll usually find the cheapest deals if you fly from Oslo Airport.

  • Which aircraft models fly most regularly from Oslo to Portland?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Oslo to Portland?

    SkyTeam, and oneworld are the airline alliances operating flights between Oslo and Portland, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Oslo to Portland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oslo to Portland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oslo to Portland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Oslo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oslo to Portland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to Oslo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oslo to Portland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from Oslo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Oslo to Portland

 
See real verified KAYAK customer reviews for airlines flying from Oslo to Portland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Oslo to Portland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1511 reviews
8.4Crew
7.3Food
7.8Boarding
7.1Entertainment
7.7Comfort
Airline reviews

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

2.0 MediocreRakesh, Mar 2026
AMS - BOM
Read more KLM reviews

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

It was really nice journey i personally recommend klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

1st class seats NOT REALLY 1st class or business class but like premier economy. Should be listed as such or named something else. I have flown 1st class with other airlines and they are nothing like it at all.

The flight from Dallas to madrid was delayed for 2 to 3 hours, the flight back from Dallas to Sacramento was fine , but there were 5 gate changes within the span of 2 hours, last one was in a differny terminal. Flight and crew was okay

I was downgraded from business class to economy class with no compensation. American Airlines is absolutely the worst airline for international travel. They treat their business class customers like dogs.

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Everything you need to know for your flight from Oslo to Portland

Information on your arrival and departure airports