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$110+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
OSL — IST
Jul 1 — Jul 81
Tue 7/1
Tue 7/8
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 64 days in advance, depart on a Thursday or Sunday and return on a Tuesday

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 June 26, 2025.

Round-trip from

$252
(Turkish Airlines)

One-way from

$110
(Trip.com)

Popular in

July

Cheapest in

March

Average price

$348

Good round-trip deal

$753 or less

Good one-way deal

$265 or less
From Oslo Gardermoen to Istanbul
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One-way flight from Oslo Gardermoen to Istanbul
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Highest demand for flights based on searches. 25% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 26, 2025.

This Turkish Airlines deal was found by Cheapflights users on 6/25. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:10 pmOSL - IST
Nonstop4h 00mTurkish Airlines
Mon 9/297:35 amIST - OSL
Nonstop3h 50mTurkish Airlines
Deal found 6/25$252
This Air Serbia deal was found by Cheapflights users on 6/26. 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 10/279:40 amOSL - IST
1 stop17h 10mAir Serbia
Mon 11/35:30 amIST - OSL
1 stop5h 30mAir Serbia
Deal found 6/26$275
This Mytrip deal was found by Cheapflights users on 6/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/106:05 amOSL - IST
Nonstop3h 50mMultiple Airlines
Sun 8/173:40 pmIST - OSL
1 stop28h 25mMultiple Airlines
Deal found 6/26$280
This Aegean Airlines deal was found by Cheapflights users on 6/26. 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 Aegean Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1811:35 amOSL - IST
1 stop7h 25mAegean Airlines
Tue 8/268:50 pmIST - OSL
1 stop14h 55mAegean Airlines
Deal found 6/26$306
This Mytrip deal was found by Cheapflights users on 6/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/103:15 pmOSL - IST
1 stop22h 40mairBaltic
Sun 8/173:40 pmIST - OSL
1 stop17h 00mairBaltic
Deal found 6/26$321
This Norwegian deal was found by Cheapflights users on 6/25. 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 Norwegian is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/36:05 amOSL - IST
Nonstop3h 50mNorwegian
Wed 8/132:35 pmIST - OSL
Nonstop3h 35mNorwegian
Deal found 6/25$423
This Lufthansa deal was found by Cheapflights users on 6/25. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:15 amOSL - IST
2 stops13h 05mLufthansa
Mon 9/295:55 pmIST - OSL
1 stop16h 05mLufthansa
Deal found 6/25$476
This Scandinavian Airlines deal was found by Cheapflights users on 6/26. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/12:55 pmOSL - IST
2 stops11h 30mScandinavian Airlines
Fri 9/55:05 pmIST - OSL
2 stops16h 15mScandinavian Airlines
Deal found 6/26$530
This Gotogate deal was found by Cheapflights users on 6/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:45 pmOSL - IST
1 stop16h 20mLOT
Sun 7/201:55 pmIST - OSL
1 stop6h 00mLOT
Deal found 6/26$539
This Transavia Smart Connect deal was found by Cheapflights users on 6/26. 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 Transavia Smart Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/145:45 pmOSL - IST
1 stop8h 30mTransavia France
Sun 7/203:35 amIST - OSL
1 stop16h 15mTransavia France
Deal found 6/26$716
This British Airways deal was found by Cheapflights users on 6/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:05 pmOSL - IST
1 stop27h 35mBritish Airways
Fri 8/298:25 pmIST - OSL
1 stop27h 05mBritish Airways
Deal found 6/26$911
This Ethiopian Air deal was found by Cheapflights users on 6/25. 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 Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:45 pmOSL - IST
2 stops24h 25mEthiopian Air
Sat 9/1312:10 amIST - OSL
2 stops33h 35mEthiopian Air
Deal found 6/25$1,279

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 June 26, 2025.
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

Fri 9/19

12:10 pm-5:10 pm

Nonstop4h 00m

Istanbul

Mon 9/29

7:35 am-10:25 am

Nonstop3h 50m

$252

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Mon 10/27

9:40 am-4:50 am

1 stop17h 10m

Istanbul

Mon 11/3

5:30 am-9:00 am

1 stop5h 30m

$275

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Sun 8/10

6:05 am-10:55 am

Nonstop3h 50m

Istanbul

Sun 8/17

3:40 pm-7:05 pm

1 stop28h 25m

$280

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Mon 8/18

11:35 am-8:00 pm

1 stop7h 25m

Istanbul

Tue 8/26

8:50 pm-10:45 am

1 stop14h 55m

$306

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Sun 8/10

3:15 pm-2:55 pm

1 stop22h 40m

Istanbul

Sun 8/17

3:40 pm-7:40 am

1 stop17h 00m

$321

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Sun 8/3

6:05 am-10:55 am

Nonstop3h 50m

Istanbul

Wed 8/13

2:35 pm-5:10 pm

Nonstop3h 35m

$423

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Fri 9/19

7:15 am-9:20 pm

2 stops13h 05m

Istanbul

Mon 9/29

5:55 pm-9:00 am

1 stop16h 05m

$476

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Mon 9/1

2:55 pm-3:25 am

2 stops11h 30m

Istanbul

Fri 9/5

5:05 pm-8:20 am

2 stops16h 15m

$530

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Mon 7/7

7:45 pm-1:05 pm

1 stop16h 20m

Istanbul

Sun 7/20

1:55 pm-6:55 pm

1 stop6h 00m

$539

OsloIstanbul

OSL - IST

OSLIST

Oslo Gardermoen

Mon 7/14

5:45 pm-3:15 am

1 stop8h 30m

Istanbul

Sun 7/20

3:35 am-6:50 pm

1 stop16h 15m

$716

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 21 results
1
2
3

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 June 20, 2025.

Booking 64 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, November is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Istanbul Airport (average of $923). Flying from Oslo Gardermoen Airport to Istanbul Airport in June is currently the most expensive (average of $1,365). 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 June 26, 2025.

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 morning, which can drop the price by up to 12% versus a flight in the afternoon.

What is the cheapest day to fly from Oslo Gardermoen Airport to Istanbul Airport?

Use this chart to determine the cheapest time to fly round-trip from Oslo Gardermoen to Istanbul. Price data was last updated on June 22, 2025.

Travelers seeking maximum savings on their Oslo Gardermoen Airport to Istanbul Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Oslo Gardermoen Airport to Istanbul Airport

Explore weekly flight availability from Oslo Gardermoen to Istanbul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 26, 2025.

The most flights from OSL to IST are scheduled on a Wednesday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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 June 26, 2025.
Read through reviews of airlines operating flights from Oslo Gardermoen Airport to Istanbul Airport, such as Aegean Airlines, airBaltic, and Norwegian. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aegean Airlines
8.2
Very good
761 reviews

Food

7.4

Overall

8.2

Crew

8.6

Comfort

7.8

Boarding

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Aegean Airlines
8.2
Very good
761 reviews
Aegean Airlines
8.2
Very good
761 reviews

Food

7.4

Overall

8.2

Crew

8.6

Comfort

7.8

Boarding

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
airBaltic
7.8
Good
177 reviews
Aegean Airlines
8.2
Very good
761 reviews

Food

7.4

Overall

8.2

Crew

8.6

Comfort

7.8

Boarding

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Norwegian
7.8
Good
232 reviews
Aegean Airlines
8.2
Very good
761 reviews

Food

7.4

Overall

8.2

Crew

8.6

Comfort

7.8

Boarding

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
LOT
7.6
Good
1,083 reviews
Aegean Airlines
8.2
Very good
761 reviews

Food

7.4

Overall

8.2

Crew

8.6

Comfort

7.8

Boarding

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you
Transavia France
7.4
Good
352 reviews
Aegean Airlines
8.2
Very good
761 reviews

Food

7.4

Overall

8.2

Crew

8.6

Comfort

7.8

Boarding

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2024

SKG - FRA

I am very proud of them. Everything was very nice everything thank you

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.

  • 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 $252. Other airlines that can offer you cheap pricing are Air Serbia, from $275, and Aegean Airlines, from $306. Turkish Airlines is currently priced 10% 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 Air Serbia ($138), Aegean Airlines ($167), and Norwegian ($174).

  • 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 Air Sweden (100%), Icelandair (92%) and Turkish Airlines (88%).

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

    On average you can expect to pay $1,116 for a flight from Oslo Gardermoen Airport to Istanbul Airport. The cheapest flight overall is $144 while the most popular route, (Oslo Gardermoen - Istanbul) is currently priced at $363.

  • 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, November is the cheapest month in which you can book a flight from Oslo Gardermoen Airport to Istanbul Airport (average of $923). Flying from Oslo Gardermoen Airport to Istanbul Airport in June is currently the most expensive (average of $1,365). 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

Traveling to a place near Oslo Gardermoen Airport?

Book flights to Oslo Gardermoen Airport if you plan to visit one of these locations
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Top 4 airlines flying from Oslo Gardermoen to Istanbul

Discover the top 4 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 June 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
NorwegianCheapest$56Average$235FlexibilityNo cancel feeOn-time74%
Pegasus AirlinesCheapest$107Average$199FlexibilityNo cancel feeOn-time82%
Turkish AirlinesCheapest$221Average$294FlexibilityNo cancel feeOn-time77%
Air SerbiaCheapest$236Average$368FlexibilityNo cancel feeOn-timeN/A

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