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Cheap flights from Oslo Gardermoen Airport to Istanbul Airport

OSL — IST
19 Sep — 26 Sep1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Oslo Gardermoen to Istanbul

Popular in

July

Cheapest in

November

Average price

£244

Good round-trip deal

£404 or less

Good one-way deal

£299 or less
Highest demand for flights based on searches. 19% potential increase in price (£44 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from Oslo Gardermoen to Istanbul.
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Price to beat on a one-way flight from Oslo Gardermoen to Istanbul.
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Best time to book a flight from Oslo Gardermoen to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Oslo Gardermoen with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Oslo Gardermoen Airport to Istanbul Airport

How far ahead should I book a flight from Oslo Gardermoen Airport to Istanbul Airport?

The best time to book flights from Oslo Gardermoen Airport to Istanbul Airport is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Oslo Gardermoen Airport to Istanbul Airport?

Currently, November is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Istanbul Airport (average of £192). Flying from Oslo Gardermoen Airport to Istanbul Airport in July is currently the most expensive (average of £359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OSL to IST?

When flying from Oslo Gardermoen Airport to Istanbul Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Istanbul

Check out reviews from past customers who have flown with Turkish Airlines and Pegasus Airlines from Oslo Gardermoen Airport to Istanbul Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.4
Good
4,478 reviews
Check prices

Boarding

7.3

Entertainment

7.5

Food

7.5

Overall

7.4

Crew

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

KRK - IST

Of course, when one books a trip in "sardine class," one realizes that comfort is an expensive option. That having been said, the seats were in the seat no comfortable. However, this was more than compensated by the excellent (for coach) food service and the helpfulness of the crew. I also loved that Turkish Airlines does not nickle-and-dime you on luggage. Yes, I would go with them again.
Turkish Airlines
7.4
Good
4,478 reviews
Turkish Airlines
7.4
Good
4,478 reviews
Check prices

Boarding

7.3

Entertainment

7.5

Food

7.5

Overall

7.4

Crew

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

KRK - IST

Of course, when one books a trip in "sardine class," one realizes that comfort is an expensive option. That having been said, the seats were in the seat no comfortable. However, this was more than compensated by the excellent (for coach) food service and the helpfulness of the crew. I also loved that Turkish Airlines does not nickle-and-dime you on luggage. Yes, I would go with them again.
Pegasus Airlines
6.6
Okay
637 reviews
Turkish Airlines
7.4
Good
4,478 reviews
Check prices

Boarding

7.3

Entertainment

7.5

Food

7.5

Overall

7.4

Crew

7.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

KRK - IST

Of course, when one books a trip in "sardine class," one realizes that comfort is an expensive option. That having been said, the seats were in the seat no comfortable. However, this was more than compensated by the excellent (for coach) food service and the helpfulness of the crew. I also loved that Turkish Airlines does not nickle-and-dime you on luggage. Yes, I would go with them again.

Related info for your journey

  • What are the cheapest airlines flying from Oslo Gardermoen Airport to Istanbul Airport round-trip?

    According to our current data, Pegasus Airlines (£115), and Turkish Airlines (£164) offers the cheapest pricing from Oslo Gardermoen Airport to Istanbul Airport. Pegasus Airlines is currently priced 52% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Oslo Gardermoen Airport to Istanbul Airport one-way?

    £66 is the cheapest one-way deal found within the past few days, from Pegasus Airlines. You may also be able to find cheap deals on Air Serbia and Turkish Airlines, with prices starting from £89 and £145, respectively.

  • What are the most reliable airlines from Oslo Gardermoen Airport to Istanbul Airport?

    The top 3 most reliable airlines when flying from Oslo Gardermoen Airport to Istanbul Airport are Norwegian (88%), Norwegian (86%) and Icelandair (81%).

  • Can I find deals for flights from Oslo Gardermoen to Istanbul that include hotel bookings?

    Yes. In addition to deals on Oslo Gardermoen to Istanbul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Oslo Gardermoen to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oslo Gardermoen to Istanbul.

  • Can I find deals for business class flights from Oslo Gardermoen to Istanbul?

    Yes. Cheapflights offers flight deals from Oslo Gardermoen to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oslo Gardermoen Airport to Istanbul Airport?

    Currently, November is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Istanbul Airport (average of £192). Flying from Oslo Gardermoen Airport to Istanbul Airport in July is currently the most expensive (average of £359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Oslo Gardermoen to Istanbul

AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest£115Average£161FlexibilityNo cancel feeOn-time82%
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Turkish AirlinesCheapest£164Average£215FlexibilityNo cancel feeOn-time77%
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