$362 Cheap Flights from Oslo (OSL) to Pasco (PSC)

View $362 flight on Mon, Jan 19, 2026Opens in a new window

Popular airlines from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC)

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Cheap Flights from Oslo to Pasco (OSL-PSC)

Prices were available within the past 7 days and start at $362 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC) cost?
Lock in a cheap one-way flight from $362 or cheap return flight from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC)?
Traveling in can help you save, as it's the cheapest month for flights between OSL and PSC. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest OSL to PSC flight.
How many flights per day from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC)?
You'll need to catch a flight with a layover when traveling from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from OSL to PSC?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC)?
To reach Tri-Cities Airport (PSC) on time, book a flight that takes off from Gardermoen Airport (OSL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC) last-minute?
Holding off until right before your break to book a ticket from OSL to PSC often results in higher prices. While it's possible to find some last-minute deals, they're not always guaranteed. Be flexible with your travel plans to maximize your chances of getting a bargain.
Is it cheaper to book an OSL to PSC flight and hotel package?
Compared with arranging hotels and flights separately, booking an OSL to PSC flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of planning your trip. Just pick your flights and select from our extensive range of stays, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Gardermoen Airport (OSL) to Tri-Cities Airport (PSC)?
If you reserved your OSL to PSC flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Gardermoen
Destination airport
Tri-Cities
Distance
4567 mi

Book with confidence

Book with confidence

Oslo to Pasco Flights

The cheapest times to fly from Oslo to Pasco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Oslo to Pasco are during the month of . You can find some of the cheapest flights from Oslo to Pasco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Oslo to Pasco

Sunday is one of the best days to book for cheap flights from Oslo to Pasco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Oslo to Pasco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Oslo to Pasco in 2025. You can also book with separate airlines for your outbound and return journeys, from $362 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Oslo to Pasco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Oslo to Pasco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Oslo to Pasco Flights

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*Available to One Key members.