Hanoi (HAN) to Istanbul (IST): 4,609 miles (7,417 km) great-circle, about 9h 45m nonstop by our estimate. Cheapest fare observed: $617 round-trip on Air China, with 1 stop, departing May 12, 2026.
$617 round-trip, Air China CA742, departing 2026-05-12 at 13:25, returning 2026-05-20. The recorded itinerary left on a Tuesday, returning on a Wednesday 8 nights later; the fare was observed 17 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $617, it ranked 21st of the 30 round-trip fares we recorded from HAN (median $271). That is 13.4 cents per great-circle mile (round-trip price over one-way distance), below the HAN median of 25.9 cents across 30 round-trip routes.
Routes from HAN of similar length: Minsk (4,551 mi) at $1161 and St. Petersburg (4,459 mi) at $825.
Air China had the cheapest fare on 2 of 30 HAN routes. It is the longest of the 30 routes we track from HAN.
Of 117 departure airports with a fare to Istanbul, Hanoi (HAN) ranked 62nd at $617. Lowest: $60 from Antalya (AYT); highest: $1639 from Wellington (WLG); 29 nonstop. Cheapest-fare airlines (routes): Pegasus Airlines (13), Qatar (7), WestJet (6), Wizz Air (6), Gulf Air (5) and Turkish (5), plus 51 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Ho_Chi_Minh, Europe/Istanbul; flight time is our estimate.