Cheap Flights from Oslo (OSL) to Seinajoki (SJY)

Popular airlines from Gardermoen Airport (OSL) to Seinajoki (SJY)

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Frequently asked questions

How much does a flight from Gardermoen Airport (OSL) to Seinajoki (SJY) cost?
Get a cheap one-way flight or cheap return flight from Gardermoen Airport (OSL) to Seinajoki (SJY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Gardermoen Airport (OSL) to Seinajoki (SJY)?
Flying in can help you save, as it's the cheapest month for flights between OSL and SJY. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Gardermoen Airport (OSL) to Seinajoki (SJY)?
To find the cheapest airline flying from OSL to SJY, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Gardermoen Airport (OSL) to Seinajoki (SJY)?
Direct flights from Gardermoen Airport (OSL) to Seinajoki (SJY) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from OSL to SJY?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, time of year and other factors.*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 Seinajoki (SJY)?
To touch down at Seinajoki (SJY) on schedule, choose a flight that takes off from Gardermoen Airport (OSL) before 3 PM. The chance 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 Seinajoki (SJY) last-minute?
Booking your flight from OSL to SJY just before your trip is generally more expensive. However, if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book an OSL to SJY flight and hotel package?
You'll generally save money by securing an OSL to SJY flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Gardermoen Airport (OSL) to Seinajoki (SJY)?
In most instances, you can cancel or reschedule your OSL to SJY flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need more details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Gardermoen
Destination airport
Seinajoki
Distance
423 mi

Book with confidence

Book with confidence

Oslo to Seinajoki Flights

The cheapest times to fly from Oslo to Seinajoki

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 Seinajoki are during the month of . You can find some of the cheapest flights from Oslo to Seinajoki with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Oslo to Seinajoki

Sunday is one of the best days to book for cheap flights from Oslo to Seinajoki: 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 Seinajoki

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 Seinajoki in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Seinajoki 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 Seinajoki 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 Seinajoki Flights

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Explore a world of travel with Expedia

*Available to One Key members.