Istanbul (IST) to Athens (ATH): 344 miles (553 km) great-circle, about 1h 10m nonstop by our estimate. Cheapest fare observed: $144 round-trip on Sky Express, nonstop, departing July 8, 2026.
$144 round-trip, Sky Express GQ671, departing 2026-07-08 at 09:30, returning 2026-07-16. The recorded itinerary left on a Wednesday, returning on a Thursday 8 nights later; the fare was observed 74 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $144, it ranked 7th of the 30 round-trip fares we recorded from IST (median $194). That is 41.9 cents per great-circle mile (round-trip price over one-way distance), above the IST median of 20.9 cents across 30 round-trip routes.
Routes from IST of similar length: Nevşehir (352 mi) at $74 and Antalya (322 mi) at $59.
IST to ATH is the only one of 30 IST routes where Sky Express priced cheapest. It is the 28th longest of the 30 routes we track from IST.
Of 21 departure airports with a fare to Athens, Istanbul (IST) ranked 6th at $144. Lowest: $62 from Budapest (BUD); highest: $1500 from Havana (HAV); 7 nonstop. Cheapest-fare airlines (routes): Wizz Air Malta (4), Ryanair (3), Wizz Air (3), Aegean Airlines (1), Air Canada (1) and Copa (1), plus 8 more.
The reverse, Athens (ATH) to Istanbul (IST), was $133 round-trip on Sichuan Airlines, nonstop, departing May 20, 2026. Athens to Istanbul flights.
That depends on your passport and trip, so check the official source for Greece: European Commission: Schengen visa policy. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Europe/Istanbul, Europe/Athens; flight time is our estimate.