Cheap flights from Oslo to Helsinki from $103

The month of October is, on average, the cheapest month to fly to Helsinki from Oslo, with most prices found around $63. If you aren’t able to travel during the month of October, then book flights to Helsinki from Oslo during June instead. Flights to Helsinki in June, while not as cheap as those in October, still average around $70.

The cheapest day to depart on your flight to Helsinki is on a Monday when prices can be found for as low as $611. This is often the case because there is less demand to fly during this day of the week. Flights from Oslo to Helsinki on a Sunday will generally be more expensive and average around $1,058. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Helsinki is in the afternoon. momondo users have found flights departing from Oslo to Helsinki in the afternoon for as low as $345. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Helsinki, so prices are often more expensive at around $870 per ticket.

Fly from Oslo Gardermoen to Helsinki-Vantaa for the best Oslo - Helsinki-Vantaa flight prices

You are more likely to see cheaper flights to Helsinki from Oslo when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $220 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Oslo for as low as $159 on momondo.

There are 3 cabin classes available to choose from on Oslo to Helsinki flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 17% of flights between Oslo and Helsinki have experienced a delay on any given week. The average delay length over the past 12 months has been 85 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Norwegian have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

10 flights are operational daily from Oslo to Helsinki as of June 2026. The most popular departure time for this route is 12:00PM, with 57% of flights per day taking off in the afternoon.

The number of flights available between Oslo and Helsinki is 75 per week as of June 2026. The most frequent departure day is Mon, with 24% of weekly flights leaving on this day.