Cheap flights from Oslo to Helsinki from $102

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 February instead. Flights to Helsinki in February, 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 Thursday will generally be more expensive and average around $997. 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 $551. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $853 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 $215 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 18% 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 in the morning tend to experience fewer delays. Flights at night 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.

9 flights are operational daily from Oslo to Helsinki as of May 2026. The most popular departure time for this route is 8:00AM, with 45% of flights per day taking off in the afternoon.

The number of flights available between Oslo and Helsinki is 67 per week as of May 2026. The most frequent departure day is Wed, with 24% of weekly flights leaving on this day.