$170 Cheap Flights from Trieste (TRS) to Istanbul (IST)

View $170 flight on Fri, Sep 5, 2025Opens in a new window

Popular airlines from Friuli Venezia Giulia Airport (TRS) to Istanbul Airport (IST)

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Cheap Flights from Trieste to Istanbul (TRS-IST)

Prices were available within the past 7 days and start at $170 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri, Sep 19 - Thu, Sep 25
TRS
Trieste
IST
Istanbul
$218 Roundtrip, found 3 days ago
$218
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Fri, Sep 19 from Trieste to Istanbul, returning Thu, Sep 25, priced at $218 found 3 days ago
Lufthansa
Thu, Apr 16 - Sat, Apr 18
TRS
Trieste
IST
Istanbul
$263 Roundtrip, found 5 hours ago
$263
Roundtrip
found 5 hours ago
Select Lufthansa flight, departing Thu, Apr 16 from Trieste to Istanbul, returning Sat, Apr 18, priced at $263 found 5 hours ago
Lufthansa
Thu, Apr 16 - Sat, Apr 18
TRS
Trieste
IST
Istanbul
$291 Roundtrip, found 5 hours ago
$291
Roundtrip
found 5 hours ago
Select Lufthansa flight, departing Thu, Apr 16 from Trieste to Istanbul, returning Sat, Apr 18, priced at $291 found 5 hours ago
Lufthansa
Thu, Apr 16 - Sat, Apr 18
TRS
Trieste
IST
Istanbul
$299 Roundtrip, found 5 hours ago
$299
Roundtrip
found 5 hours ago
Select Lufthansa flight, departing Thu, Apr 16 from Trieste to Istanbul, returning Sat, Apr 18, priced at $299 found 5 hours ago
Air Dolomiti
Fri, Sep 19 - Thu, Sep 25
TRS
Trieste
IST
Istanbul
$315 Roundtrip, found 3 days ago
$315
Roundtrip
found 3 days ago
Select Air Dolomiti flight, departing Fri, Sep 19 from Trieste to Istanbul, returning Thu, Sep 25, priced at $315 found 3 days ago
Lufthansa
Thu, Apr 16 - Sat, Apr 18
TRS
Trieste
IST
Istanbul
$326 Roundtrip, found 5 hours ago
$326
Roundtrip
found 5 hours ago
Select Lufthansa flight, departing Thu, Apr 16 from Trieste to Istanbul, returning Sat, Apr 18, priced at $326 found 5 hours ago
Lufthansa
Mon, Sep 8 - Tue, Sep 16
TRS
Trieste
IST
Istanbul
$333 Roundtrip, found 4 days ago
$333
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Mon, Sep 8 from Trieste to Istanbul, returning Tue, Sep 16, priced at $333 found 4 days ago
ITA Airways
Thu, Apr 16 - Fri, Apr 17
TRS
Trieste
IST
Istanbul
$436 Roundtrip, found 5 hours ago
$436
Roundtrip
found 5 hours ago
Select ITA Airways flight, departing Thu, Apr 16 from Trieste to Istanbul, returning Fri, Apr 17, priced at $436 found 5 hours ago
Turkish Airlines
Fri, Oct 24 - Sun, Nov 2
TRS
Trieste
IST
Istanbul
$502 Roundtrip, found 6 days ago
$502
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Fri, Oct 24 from Trieste to Istanbul, returning Sun, Nov 2, priced at $502 found 6 days ago
Air France
Wed, Aug 13 - Fri, Aug 15
TRS
Trieste
IST
Istanbul
$1,192 Roundtrip, found 1 day ago
$1,192
Roundtrip
found 1 day ago
Select Air France flight, departing Wed, Aug 13 from Trieste to Istanbul, returning Fri, Aug 15, priced at $1,192 found 1 day ago
Flights from Trieste (TRS) to Istanbul (IST)
Origin airport
Friuli Venezia Giulia
Destination airport
Istanbul
Airlines serving
ITA Airways, Lufthansa
Roundtrip price
$218
Distance
824 mi

Trieste to Istanbul Flights

The cheapest times to fly from Trieste 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 Trieste to Istanbul are during the month of September. You can find some of the cheapest flights from Trieste to Istanbul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Trieste to Istanbul

Sunday is one of the best days to book for cheap flights from Trieste 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 Trieste 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 Trieste to Istanbul in 2025. You can also book with separate airlines for your outbound and return journeys, from $170 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 Trieste 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 Trieste 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 Friuli Venezia Giulia Airport (TRS) to Istanbul (IST) cost?
Discover the latest flight deals from TRS to IST by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TRS to IST?
The cheapest flights from TRS to IST are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TRS to IST?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from TRS to IST. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Friuli Venezia Giulia Airport (TRS) to Istanbul (IST)?
Direct flights from Friuli Venezia Giulia Airport (TRS) to Istanbul (IST) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from TRS to IST?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Friuli Venezia Giulia Airport (TRS) to Istanbul (IST)?
To touch down at Istanbul (IST) without delays, book a flight that leaves Friuli Venezia Giulia Airport (TRS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Friuli Venezia Giulia Airport (TRS) to Istanbul (IST) last-minute?
Waiting until right before your break to book a ticket from TRS to IST generally means paying more. While it's possible to find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for a better chance of snagging a bargain.
Can I cancel or change the date of my flight from Friuli Venezia Giulia Airport (TRS) to Istanbul (IST)?
If you booked your TRS to IST flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

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