Hanoi (HAN) to Osaka (OSA): 2,006 miles (3,229 km) great-circle, about 4h 30m nonstop by our estimate. Cheapest fare observed: $361 round-trip on VietJet Air, nonstop, departing June 25, 2026.
$361 round-trip, VietJet Air VJ4938, departing 2026-06-25 at 01:20, returning 2026-06-25. The recorded itinerary left on a Thursday and came back the same day; the fare was observed 61 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $361, it ranked 18th of the 30 round-trip fares we recorded from HAN (median $271). That is 18.0 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: Irkutsk (2,146 mi) at $897 and Vladivostok (2,153 mi) at $640.
VietJet Air had the cheapest fare on 9 of 30 HAN routes. It is the 13th longest of the 30 routes we track from HAN.
Of 11 departure airports with a fare to Osaka, Hanoi (HAN) ranked 10th at $361. Lowest: $71 from Tokyo (NRT); highest: $1312 from Geneva (GVA); 7 nonstop. Cheapest-fare airlines (routes): Jetstar Japan (2), ANA (1), Etihad (1), Peach Aviation (1), Shandong Airlines (1) and Skymark Airlines (1), plus 4 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Ho_Chi_Minh, Asia/Tokyo; flight time is our estimate.