Cheap Flights from Gaziantep to Istanbul

Cheapest flights from Gaziantep to Istanbul

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Gaziantep to Istanbul. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$35

Pegasus Airlines

Direct flight

1h 45m

06/20/2026

The cheapest one-way flight from Gaziantep to Istanbul departs on 06/20/2026, is operated by Pegasus Airlines and costs $35

Cheapest round trip flight

$95

Pegasus Airlines

Direct flight

3h 25m

06/06/2026

The cheapest roundtrip flight from Gaziantep to Istanbul departs on 06/06/2026, is operated by Pegasus Airlines and costs $95

The fastest flight

1h 45m

Fastest flight from Gaziantep to Istanbul takes 1h 45m

Direct flights

Every day

There are direct flights on this route 7 days a week: Su, Mo, Tu, We, Th, Fr, and Sa

Earliest flight

4:10 AM

Latest flight

3:25 AM

Average flight duration

1h 54m

Direct flights count

117

Distance

871km

Timezone difference

0h

The distance between Gaziantep and Istanbul is 871km (540 miles). The average flight duration is 1h 54m. There are 117 direct flights from Gaziantep to Istanbul. Gaziantep and Istanbul are in the same time zone. Flights from Gaziantep begin at 4:10 AM. The latest flight from Gaziantep departs at 3:25 AM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Gaziantep to Istanbul by month

The cost of a one-way flight from Gaziantep to Istanbul ranges from $35 (June 2026) to $98 (September 2026). On average, the ticket price is about $62–$135.

June 2026

Lowest price

on average:

$35

September 2026

Highest price

on average:

$98

Avg Price

Price dynamics

Flight costs for Gaziantep — Istanbul fluctuate noticeably — prices go up and down. There's no clear trend, but we've analyzed the data and found some benchmarks.

Cheaper and more expensive periods

Despite the fluctuations, patterns exist: the cheapest period is June 2026–July 2026 — averaging $54. The most expensive is August 2026–September 2026 ($80). The difference reaches 32%.

Best time to buy

With this kind of price behavior, it's worth comparing prices across several months and booking when a good deal appears. A good benchmark is June 2026–July 2026, where you can save up to 32%.

Price predictability

Price spread on this route is 36.2%. Costs vary significantly, so your choice of month can noticeably affect your travel budget.

Airlines operating on route

Flights from Gaziantep to Istanbul are operated by several airlines — Pegasus Airlines, Valuair, and Turkish Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $35, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.

Pegasus Airlines

starting at $35

Valuair

starting at $37

Turkish Airlines

starting at $92

Non-stop flights from Gaziantep to Istanbul

A non-stop flight is the most convenient and comfortable way to fly from Gaziantep to Istanbul, despite the fact that sometimes flights with transfers can cost significantly less.

Gaziantep — Istanbul

GZT — IST

06/20/2026

Departure

Direct flight

PC4621

starting at $35

Gaziantep — Istanbul

GZT — IST

06/21/2026

Departure

Direct flight

PC2407

starting at $36

Gaziantep — Istanbul

GZT — IST

06/09/2026

Departure

Direct flight

VF3229

starting at $37

Gaziantep — Istanbul

GZT — IST

06/11/2026

Departure

Direct flight

PC2411

starting at $38

Gaziantep — Istanbul

GZT — IST

06/12/2026

Departure

Direct flight

PC2405

starting at $38

Gaziantep — Istanbul

GZT — IST

06/17/2026

Departure

Direct flight

PC4289

starting at $39

Gaziantep — Istanbul

GZT — IST

06/08/2026

Departure

Direct flight

PC2409

starting at $40

Gaziantep — Istanbul

GZT — IST

11/20/2026

Departure

Direct flight

PC2411

starting at $42

Gaziantep — Istanbul

GZT — IST

06/06/2026

Departure

Direct flight

PC4621

starting at $43

Gaziantep — Istanbul

GZT — IST

06/05/2026

Departure

Direct flight

PC2411

starting at $50

Schedule of direct flights from Gaziantep to Istanbul

All airlines serving Gaziantep — Istanbul operate daily direct flights: Turkish Airlines, Pegasus Airlines, and Valuair fly every day.

Turkish Airlines

Every day

starting at $91

Pegasus Airlines

Every day

starting at $42

Valuair

Every day

starting at $36

Gaziantep airports overview

Gaziantep Airport

•

GZT

Handles domestic and seasonal international flights for Gaziantep and southeastern Turkey, with convenient road links to the city and regional transport connections.

•

Istanbul airports overview

Istanbul New Airport

•

IST

1km

Serves Istanbul as Turkey’s main international hub, offering extensive long‑haul and regional connections with modern terminals and direct rail and road links to the city.

Sabiha Gokcen International Airport

•

SAW

43km

Serves Istanbul's Asian side with domestic and international flights, popular with low-cost carriers; convenient for travelers to Pendik, Kartal and nearby ferry/road links to central Istanbul.

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Gaziantep to Istanbul?

The cheapest flight ticket from Gaziantep to Istanbul according to data for the last 48 hours costs $35

When is the best time to buy air tickets on the route Gaziantep — Istanbul?

Often the best time to buy tickets from Gaziantep to Istanbul is 2 months before departure.

When is the cheapest time of year to fly from Gaziantep to Istanbul?

Based on statistics over the past years, the lowest prices for flights from Gaziantep to Istanbul can be found flying in these months: June, November, August.

How long does it take to fly from Gaziantep to Istanbul?

The fastest flights from Gaziantep to Istanbul start from 1 hour 45 minutes in the air.

Which airline can fly direct from Gaziantep to Istanbul?

The following airlines operate direct flights on the route Gaziantep — Istanbul: Pegasus Airlines, Valuair

Special offers and sales on air tickets from Gaziantep to Istanbul

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Gaziantep to Istanbul

Alternative routes

Adana ➜ Istanbul•Kayseri ➜ Istanbul•Beirut ➜ Istanbul•Damascus ➜ Istanbul•Diyarbakir ➜ Istanbul•Elazig ➜ Istanbul•Konya ➜ Istanbul•Malatya ➜ Istanbul•Tokat ➜ Istanbul•Sivas ➜ Istanbul•Gaziantep ➜ Bucharest•Gaziantep ➜ Constanta•Gaziantep ➜ Eskisehir•Gaziantep ➜ Izmir•Gaziantep ➜ Kutahya•Gaziantep ➜ Plovdiv•Gaziantep ➜ Tekirdag•Gaziantep ➜ Varna•Gaziantep ➜ Bursa

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Cheapest one way flight

$35

Pegasus Airlines

Direct flight

1h 45m

06/20/2026

The cheapest one-way flight from Gaziantep to Istanbul departs on 06/20/2026, is operated by Pegasus Airlines and costs $35

Cheapest round trip flight

$95

Pegasus Airlines

Direct flight

3h 25m

06/06/2026

The cheapest roundtrip flight from Gaziantep to Istanbul departs on 06/06/2026, is operated by Pegasus Airlines and costs $95

The fastest flight