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$120+ Cheap flights from Oslo Gardermoen (OSL) to Istanbul (IST)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — IST
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheapflights Tip: The best prices from Oslo Gardermoen to Istanbul are usually found in March or May, booked 82 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap flight deals from Oslo Gardermoen to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Oslo Gardermoen (OSL) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 15, 2026.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$222
(KLM)

One-way from

$120
(airBaltic)

Popular in

July

Cheapest in

March

Average price

$259

Good round-trip deal

$643 or less

Good one-way deal

$315 or less
Provider with most accurate pricing for Oslo Gardermoen-Istanbul flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oslo Gardermoen-Istanbul flights.
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From Oslo Gardermoen to Istanbul
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One-way flight from Oslo Gardermoen to Istanbul
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in January 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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Find flight deals from Oslo Gardermoen to Istanbul

Cheapest flights from Oslo Gardermoen to Istanbul
Explore the most affordable flight options available from Oslo Gardermoen to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This KLM deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:30 am
OSL
-
IST
1 stop8h 25m
KLM
Sat 3/75:55 pm
IST
-
OSL
1 stop16h 45m
KLM
Deal found 1/13$222
This Air Serbia deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:00 pm
OSL
-
IST
1 stop5h 40m
Air Serbia
Mon 6/14:30 am
IST
-
OSL
1 stop5h 30m
Air Serbia
Deal found 1/14$233
This Air Serbia deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/188:55 pm
OSL
-
IST
1 stop5h 30m
Air Serbia
Wed 1/284:40 pm
IST
-
OSL
1 stop18h 15m
Air Serbia
Deal found 1/15$242
This Air Serbia deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:45 am
OSL
-
IST
1 stop16h 55m
Air Serbia
Wed 6/33:45 pm
IST
-
OSL
1 stop5h 30m
Air Serbia
Deal found 1/14$243
This Air Serbia deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:00 pm
OSL
-
IST
1 stop5h 40m
Air Serbia
Tue 6/24:40 pm
IST
-
OSL
1 stop28h 35m
Air Serbia
Deal found 1/14$244
This Air France deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/245:20 pm
OSL
-
IST
1 stop8h 30m
Air France
Sun 2/14:50 am
IST
-
OSL
1 stop20h 45m
Air France
Deal found 1/14$245
This KLM deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:30 am
OSL
-
IST
1 stop8h 25m
KLM
Sun 3/85:55 pm
IST
-
OSL
1 stop16h 45m
KLM
Deal found 1/15$253
This Air Serbia deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/199:40 am
OSL
-
IST
1 stop16h 30m
Air Serbia
Wed 1/284:40 pm
IST
-
OSL
1 stop18h 15m
Air Serbia
Deal found 1/15$256
This Air Serbia deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:00 pm
OSL
-
IST
1 stop5h 40m
Air Serbia
Sat 5/304:30 am
IST
-
OSL
1 stop5h 30m
Air Serbia
Deal found 1/14$258
This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/188:55 pm
OSL
-
IST
1 stop5h 30m
Air Serbia
Mon 1/265:30 am
IST
-
OSL
1 stop5h 25m
Air Serbia
Deal found 1/15$264
This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/212:50 pm
OSL
-
IST
Nonstop3h 55m
Turkish Airlines
Tue 1/279:00 pm
IST
-
OSL
Nonstop4h 05m
Turkish Airlines
Deal found 1/15$265

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oslo Gardermoen to Istanbul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
Use the filters below to find and compare flights from Oslo Gardermoen Airport to Istanbul Airport that are best for you.

Fly from

Oslo Gardermoen

Fly to

Istanbul

Route

Depart

Return

Price

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Sat 2/28

6:30 am-4:55 pm

1 stop8h 25m

Istanbul

Sat 3/7

5:55 pm-8:40 am

1 stop16h 45m

$222

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Fri 5/1

9:00 pm-3:40 am

1 stop5h 40m

Istanbul

Mon 5/4

4:30 am-9:00 am

1 stop5h 30m

$233

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Thu 5/14

9:45 am-3:40 am

1 stop16h 55m

Istanbul

Wed 6/3

3:45 pm-8:15 pm

1 stop5h 30m

$243

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Thu 5/14

9:45 am-3:40 am

1 stop16h 55m

Istanbul

Sun 5/31

3:45 pm-9:00 am

1 stop18h 15m

$244

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Sun 3/1

6:30 am-4:55 pm

1 stop8h 25m

Istanbul

Sun 3/8

5:55 pm-8:40 am

1 stop16h 45m

$253

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Sat 5/16

9:45 am-3:40 am

1 stop16h 55m

Istanbul

Sat 5/30

4:30 am-9:00 am

1 stop5h 30m

$258

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Fri 5/8

9:00 pm-3:55 pm

1 stop17h 55m

Istanbul

Sat 5/16

4:30 am-9:00 am

1 stop5h 30m

$267

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Mon 5/4

5:00 pm-3:40 am

2 stops9h 40m

Istanbul

Wed 5/13

4:30 am-11:05 am

1 stop7h 35m

$271

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Fri 3/6

7:30 am-1:25 pm

Nonstop3h 55m

Istanbul

Tue 3/10

9:00 pm-11:05 pm

Nonstop4h 05m

$287

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Wed 7/8

8:10 am-2:40 pm

1 stop5h 30m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 19 results
1
2

Compare providers for flights from Oslo Gardermoen to Istanbul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Oslo Gardermoen to Istanbul in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Oslo Gardermoen Airport-Istanbul Airport flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Oslo Gardermoen Airport-Istanbul Airport flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Oslo Gardermoen Airport-Istanbul Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oslo Gardermoen Airport-Istanbul Airport flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Oslo Gardermoen Airport-Istanbul Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a round-trip flight from Oslo Gardermoen to Istanbul. Price data was last updated on January 9, 2026.

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oslo Gardermoen Airport to Istanbul Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Istanbul Airport (average of $101). Flying from Oslo Gardermoen Airport to Istanbul Airport in July is currently the most expensive (average of $207). 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?

Find hourly flight availability from Oslo Gardermoen to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 15, 2026.

When flying from Oslo Gardermoen Airport to Istanbul Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 35% versus a flight in the afternoon.

How much does it cost to fly round-trip from Oslo Gardermoen Airport to Istanbul Airport?

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated January 15, 2026.
Read through reviews of airlines operating flights from Oslo Gardermoen Airport to Istanbul Airport, such as Norwegian, Turkish Airlines, and Pegasus Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Norwegian
7.8
Good
241 reviews

Boarding

7.7

Crew

8.2

Food

6.6

Entertainment

6.0

Comfort

7.6

Overall

7.8

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Norwegian
7.8
Good
241 reviews
Norwegian
7.8
Good
241 reviews

Boarding

7.7

Crew

8.2

Food

6.6

Entertainment

6.0

Comfort

7.6

Overall

7.8

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Turkish Airlines
7.3
Good
4,176 reviews
Norwegian
7.8
Good
241 reviews

Boarding

7.7

Crew

8.2

Food

6.6

Entertainment

6.0

Comfort

7.6

Overall

7.8

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight
Pegasus Airlines
6.7
Okay
636 reviews
Norwegian
7.8
Good
241 reviews

Boarding

7.7

Crew

8.2

Food

6.6

Entertainment

6.0

Comfort

7.6

Overall

7.8

Reviews

1 / 2
10.0
Excellent

Kaisha,Apr 2025

BGO - OSL

Fast boarding via 3 groups, plane left and arrived early. My seat was quite hard but fine for a short domestic flight

Related info for your journey

Find useful and relevant information for your journey from Oslo Gardermoen to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oslo Gardermoen Airport to Istanbul Airport?

    Airlines like KLM and Air Serbia fly from Oslo Gardermoen Airport to Istanbul Airport in about 5h 40m. The time it takes to get you to your destination can typically vary by up to 2h 45m. The distance between Oslo Gardermoen Airport and Istanbul Airport is about 1506 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Oslo Gardermoen Airport to Istanbul Airport round-trip from $119. Other airlines that can offer you cheap pricing are Norwegian, from $149, and Turkish Airlines, from $212. Pegasus Airlines is currently priced 58% 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?

    The cheapest airlines for a one-way flight from Oslo Gardermoen Airport to Istanbul Airport are Norwegian ($73), Pegasus Airlines ($84), and Air Serbia ($123).

  • 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 Turkish Airlines (86%), Thai Airways (83%) and Pakistan International Airlines (83%).

  • What are the cheapest flights from Oslo Gardermoen Airport to Istanbul Airport?

    On average you can expect to pay $1,159 for a flight from Oslo Gardermoen Airport to Istanbul Airport. The cheapest flight overall is $195 while the most popular route, (Oslo Gardermoen - Istanbul) is currently priced at $195.

  • 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 vacation 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, August is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Istanbul Airport (average of $101). Flying from Oslo Gardermoen Airport to Istanbul Airport in July is currently the most expensive (average of $207). 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 3 airlines flying from Oslo Gardermoen to Istanbul

Discover the top 3 airlines that operate flights from Oslo Gardermoen to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest$119Average$224FlexibilityNo cancel feeOn-time82%
NorwegianCheapest$149Average$371FlexibilityNo cancel feeOn-time74%
Turkish AirlinesCheapest$212Average$329FlexibilityNo cancel feeOn-time77%

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