Average nonstop flight time from Boston Logan International (BOS) to Istanbul Airport (IST) is roughly 8.5–9.5 hours when available; however, many February itineraries include one connection which increases total travel time to 11–16+ hours depending on layover length. Common one-stop hubs are London (LHR), Frankfurt (FRA), Amsterdam (AMS), and Paris (CDG), as well as eastern U.S. gateways. Flight frequency in February tends to be lower than peak summer months, so check schedules early, consider red-eye options to maximize daylight in Istanbul, and confirm minimum connection times when booking multi-carrier itineraries.