Cheapest
56€
Flight duration
1h 23m
Distance
505 km
Cheapest months
Jul · 56€
When is it cheapest to fly from Istanbul to Sofia?
The cheapest month to fly Istanbul–Sofia is Jul, from 56€ (checked Jul 2026).
Jan
78Feb
Mar
Apr
79May
Jun
56Jul
56Aug
75Sep
75Oct
75Nov
Dec
Cheapest: Jul from 56€
Prices from Viaro's live flight data, checked Jul 2026. Actual fares vary with demand and availability.
Based on 7 of 12 months with available fares.
Airlines & airports
Istanbul
ISTIstanbul Airport
SAWIstanbul Sabiha Gokcen
Sofia
SOFSofia Airport
Tips for cheap flights
- Book 4-6 weeks in advance for the best prices
- Fly on Tuesdays and Wednesdays for cheaper fares
- Best months: May, Jun, Sep
- Compare airports: IST, SAW, SOF
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