Cheap flights from Oslo to Istanbul from $103

In general, October is the cheapest month to fly from Oslo to Istanbul. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $231. If you aren’t able to travel to Istanbul during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $241.

The cheapest day to depart from Oslo to Istanbul is on a Friday when prices can be found for as low as $782. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Istanbul on Thursday is $917.

Our most recent data shows that the best time of day to fly to Istanbul is at noon. Flights from Oslo to Istanbul during this time can be as low as $465. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $859 on average. Flights to Istanbul from Oslo in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Oslo Gardermoen to Istanbul Sabiha Gokcen for the best Oslo - Istanbul flight prices

You are more likely to see cheaper flights to Istanbul from Oslo when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul for around $313 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul from Oslo for as low as $275 on momondo.

Historically, on average around 17% of flights between Oslo and Istanbul have experienced a delay on any given week. The average delay length over the past 12 months has been 127 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.

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

According to our data, Turkish Airlines have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

The number of flights available between Oslo and Istanbul is 9 per day as of May 2026. The most frequent departure time is 6:00PM, with 70% of daily flights leaving in the evening.

67 flights are operational weekly from Oslo to Istanbul as of May 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.