$79 Cheap Flights from Oslo (OSL) to Istanbul (IST)

View $79 flight on Wed, Aug 13, 2025Opens in a new window

Popular airlines from Gardermoen Airport (OSL) to Istanbul Airport (IST)

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Cheap Flights from Oslo to Istanbul (OSL-IST)

Prices were available within the past 7 days and start at $79 for one-way flights and $165 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Norwegian Air Shuttle
Wed, Aug 27 - Wed, Sep 17
OSL
Oslo
IST
Istanbul
$165 Roundtrip, found 3 days ago
$165
Roundtrip
found 3 days ago
Select Norwegian Air Shuttle flight, departing Wed, Aug 27 from Oslo to Istanbul, returning Wed, Sep 17, priced at $165 found 3 days ago
Norwegian Air Shuttle
Sun, Oct 12 - Wed, Oct 22
OSL
Oslo
IST
Istanbul
$174 Roundtrip, found 2 days ago
$174
Roundtrip
found 2 days ago
Select Norwegian Air Shuttle flight, departing Sun, Oct 12 from Oslo to Istanbul, returning Wed, Oct 22, priced at $174 found 2 days ago
Norwegian Air Shuttle
Sun, Oct 5 - Wed, Oct 22
OSL
Oslo
IST
Istanbul
$175 Roundtrip, found 3 hours ago
$175
Roundtrip
found 3 hours ago
Select Norwegian Air Shuttle flight, departing Sun, Oct 5 from Oslo to Istanbul, returning Wed, Oct 22, priced at $175 found 3 hours ago
Norwegian Air Shuttle
Wed, Oct 1 - Wed, Oct 22
OSL
Oslo
IST
Istanbul
$185 Roundtrip, found 3 hours ago
$185
Roundtrip
found 3 hours ago
Select Norwegian Air Shuttle flight, departing Wed, Oct 1 from Oslo to Istanbul, returning Wed, Oct 22, priced at $185 found 3 hours ago
Norwegian Air Shuttle
Wed, Sep 10 - Wed, Sep 17
OSL
Oslo
IST
Istanbul
$194 Roundtrip, found 3 days ago
$194
Roundtrip
found 3 days ago
Select Norwegian Air Shuttle flight, departing Wed, Sep 10 from Oslo to Istanbul, returning Wed, Sep 17, priced at $194 found 3 days ago
Norwegian Air Shuttle
Wed, Oct 8 - Wed, Oct 22
OSL
Oslo
IST
Istanbul
$196 Roundtrip, found 1 day ago
$196
Roundtrip
found 1 day ago
Select Norwegian Air Shuttle flight, departing Wed, Oct 8 from Oslo to Istanbul, returning Wed, Oct 22, priced at $196 found 1 day ago
Air Baltic
Sun, Dec 14 - Fri, Dec 26
OSL
Oslo
IST
Istanbul
$223 Roundtrip, found 2 days ago
$223
Roundtrip
found 2 days ago
Select Air Baltic flight, departing Sun, Dec 14 from Oslo to Istanbul, returning Fri, Dec 26, priced at $223 found 2 days ago
Aegean
Mon, Oct 13 - Wed, Oct 22
OSL
Oslo
IST
Istanbul
$223 Roundtrip, found 1 day ago
$223
Roundtrip
found 1 day ago
Select Aegean flight, departing Mon, Oct 13 from Oslo to Istanbul, returning Wed, Oct 22, priced at $223 found 1 day ago
LOT-Polish Airlines
Mon, Jan 5 - Wed, Jan 14
OSL
Oslo
IST
Istanbul
$268 Roundtrip, found 2 hours ago
$268
Roundtrip
found 2 hours ago
Select LOT-Polish Airlines flight, departing Mon, Jan 5 from Oslo to Istanbul, returning Wed, Jan 14, priced at $268 found 2 hours ago
Turkish Airlines
Thu, Sep 11 - Wed, Sep 17
OSL
Oslo
IST
Istanbul
$270 Roundtrip, found 5 days ago
$270
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Thu, Sep 11 from Oslo to Istanbul, returning Wed, Sep 17, priced at $270 found 5 days ago

Find the cheapest month to fly from Oslo (OSL) to Istanbul (IST)

May is typically the cheapest month to fly

From $135 - $302 per traveler.

Graph displaying average flight prices per month

Flights from Oslo (OSL) to Istanbul (IST)
Origin airport
Gardermoen
Destination airport
Istanbul
Airlines serving
Aegean, Air Baltic, Air France, Air Serbia, British Airways, Finnair, Iberia, KLM, LOT-Polish Airlines, Lufthansa, Norwegian Air Shuttle, Scandinavian Airlines, Turkish Airlines
Roundtrip price
$164
Distance
1508 mi
Average flight time
4 hours 55 mins

Oslo to Istanbul Flights

The cheapest times to fly from Oslo to Istanbul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Oslo to Istanbul are during the month of August. You can find some of the cheapest flights from Oslo to Istanbul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Oslo to Istanbul

Sunday is one of the best days to book for cheap flights from Oslo to Istanbul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Oslo to Istanbul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Oslo to Istanbul in 2025. You can also book with separate airlines for your outbound and return journeys, from $79 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Oslo to Istanbul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Oslo to Istanbul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Gardermoen Airport (OSL) to Istanbul (IST) cost?
Lock in a cheap one-way flight from $79 or cheap return flight from $165 from Gardermoen Airport (OSL) to Istanbul (IST) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Gardermoen Airport (OSL) to Istanbul (IST)?
The cheapest month to fly from OSL to IST is August, when demand is low. Off-peak season is usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Gardermoen Airport (OSL) to Istanbul (IST)?
To find the cheapest airline flying from OSL to IST, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Gardermoen Airport (OSL) to Istanbul (IST)?
There aren't any daily nonstop flights available from Gardermoen Airport (OSL) to Istanbul (IST). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from OSL to IST?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gardermoen Airport (OSL) to Istanbul (IST)?
Select a flight from Gardermoen Airport (OSL) to Istanbul (IST) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Gardermoen Airport (OSL) to Istanbul (IST) last-minute?
Booking your ticket from OSL to IST just before your getaway is usually more expensive. But if there's some wiggle room with your departure times and dates, you could land a cheap last-minute fare.
Can I cancel or change the date of my flight from Gardermoen Airport (OSL) to Istanbul (IST)?
It's generally possible to cancel or reschedule your OSL to IST flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.