Cheap flights from Portland to Oslo from $260
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Oslo departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
What is the cheapest month to fly to Oslo?
The month of February is, on average, the cheapest month to fly to Oslo from Portland, with most prices found around $652. If you’re not able to fly to Oslo in February, then January is your next best option. Flight prices from Portland to Oslo during January average around $678.
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 $923 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 $747 on momondo.
What is the cheapest airline that flies from Portland to Oslo?
Icelandair is the most popular carrier operating from Portland to Oslo
What airlines fly to Oslo?
Icelandair, KLM and Delta 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 45% 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.
Cheap Portland to Oslo flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland to Oslo
How far is Portland to Oslo by plane?
Oslo is 4689.3 mi away from Portland. Typically, this will take 12h 15m 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 July 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 | ||
|---|---|---|---|---|---|
| PriceFrom $317 | Free Cancellation | Rating 7.3 1,414 reviews | |||
| PriceFrom $495 | Free Cancellation | Rating 7.0 514 reviews | |||
| PriceFrom $581 | Free Cancellation | Rating 6.6 7,089 reviews | |||
| PriceFrom $589 | Free Cancellation | Rating 8.0 7,975 reviews | |||
| PriceFrom $607 | Free Cancellation | Rating 7.8 1,366 reviews |
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.