When to book Istanbul to Sofia
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€45 Price today
Historically the lowest price on this route falls 28–41 days before departure (15 observations): this close to departure, waiting longer rarely pays off.
See this fareLowest price by days of advance booking
0d 90d
Each bar is the lowest price we recorded, from 126 observations.
Lowest price by departure date
November €51 32 observations
September €52 19 observations
December €53 36 observations
October €54 39 observations
Based on 126 price observations we recorded on this exact route.