Bulgaria to Turkey · 291 miles (468 km)

Sofia (SOF) to Istanbul (IST) flights

One airline flies nonstop from Sofia (SOF) to Istanbul (IST): Turkish Airlines. The two airports are 291 miles (468 km) apart. Turkish Airlines is in Star Alliance. There are also 10 ways to fly it with one stop, through Varna, Bucharest and Izmir and more.

See award prices Filter in Routes

Airlines flying nonstop from SOF to IST

Turkish AirlinesStar Alliance · bookable with 11 programsWho books it

Book SOF to IST 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

SOF to IST with one stop

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

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

SOF to IST: common questions

Which airlines fly nonstop from SOF to IST?

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

How far is Sofia from Istanbul by plane?

Sofia (SOF) and Istanbul (IST) 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 SOF to IST 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 SOF to IST cost?

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

Where can I connect between Sofia and Istanbul?

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

More routes

IST to SOF Every nonstop from SOF Every nonstop from IST

SOF to Paris CDG SOF to Frankfurt FRA SOF to Amsterdam AMS SOF to Dubai DXB SOF to Rome FCO SOF to Madrid MAD SOF to Munich MUC SOF to Barcelona BCN SOF to London LHR SOF to Milan MXP SOF to Zurich ZRH SOF to London LGW

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.