Turkey to Bulgaria · 291 miles (468 km)

Istanbul (IST) to Sofia (SOF) flights

One airline flies nonstop from Istanbul (IST) to Sofia (SOF): Turkish Airlines. The two airports are 291 miles (468 km) apart. Turkish Airlines is in Star Alliance. There are also 11 ways to fly it with one stop, through Varna, Bucharest and Izmir and more.

See award prices Filter in Routes

Airlines flying nonstop from IST to SOF

Turkish AirlinesStar Alliance · bookable with 11 programsWho books it

Book IST to SOF with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

Air Canada AeroplanBooks Turkish Airlines
Air New Zealand AirpointsBooks Turkish Airlines
ANA Mileage ClubBooks Turkish Airlines
Avianca LifeMilesBooks Turkish Airlines
EVA Air Infinity MileageLandsBooks Turkish Airlines
Lufthansa Miles & MoreBooks Turkish Airlines
Singapore Airlines KrisFlyerBooks Turkish Airlines
TAP Miles&GoBooks Turkish Airlines
Thai Royal Orchid PlusBooks Turkish Airlines
Turkish Airlines Miles&SmilesBooks Turkish Airlines
United MileagePlusBooks Turkish Airlines

IST to SOF with one stop

11 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

Via Varna (VAR)Turkish Airlines, then Bulgaria Air
FB
Via Bucharest (OTP)TAROM the whole way
A2
Via Izmir (ADB)Pegasus and Turkish Airlines, then SunExpress
Via Athens (ATH)Aegean Airlines and Sky Express the whole way
GQ
FB
GQ
Via Tirana (TIA)Turkish Airlines, then Wizz Air
Via Belgrade (BEG)Air Serbia the whole way
Via Chisinau (RMO)Fly One, Turkish Airlines and 1 more, then Wizz Air
5F
H7
Via Antalya (AYT)Turkish Airlines, then Pegasus and SunExpress
Via Heraklion (HER)Aegean Airlines, then Bulgaria Air
FB
Via Bari (BRI)Turkish Airlines, then Wizz Air and Ryanair
Via Budapest (BUD)Wizz Air the whole way

IST to SOF: common questions

Which airlines fly nonstop from IST to SOF?

Turkish Airlines (Star Alliance) flies nonstop from Istanbul (IST) to Sofia (SOF).

How far is Istanbul from Sofia by plane?

Istanbul (IST) and Sofia (SOF) are 291 miles (468 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.

Which points programs can book IST to SOF award flights?

11 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, EVA Air Infinity MileageLands, Lufthansa Miles & More, Singapore Airlines KrisFlyer, TAP Miles&Go and 3 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

How many miles does IST to SOF cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IST to SOF with taxes and fees.

Where can I connect between Istanbul and Sofia?

The most direct connections are through Varna (VAR), Bucharest (OTP), Izmir (ADB), Athens (ATH) and Tirana (TIA). On 4 of them the same airline flies both flights, for example TAROM through Bucharest.

More routes

SOF to IST Every nonstop from IST Every nonstop from SOF

IST to Paris CDG IST to Frankfurt FRA IST to Chicago ORD IST to Dallas DFW IST to Amsterdam AMS IST to Dubai DXB IST to Rome FCO IST to Shanghai PVG IST to Atlanta ATL IST to Madrid MAD IST to Denver DEN IST to Munich MUC

Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.