Tokyo (NRT) to Irkutsk (IKT): 2,089 miles (3,361 km) great-circle, about 4h 40m nonstop by our estimate. Cheapest fare observed: $1106 round-trip on MIAT Mongolian Airlines, with 1 stop, departing July 20, 2026.
$1106 round-trip, MIAT Mongolian Airlines OM502, departing 2026-07-20 at 14:40, returning 2026-08-24. The recorded itinerary left on a Monday, returning on a Monday 35 nights later; the fare was observed 86 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1106, it ranked 26th of the 30 round-trip fares we recorded from NRT (median $570). That is 53.0 cents per great-circle mile (round-trip price over one-way distance), above the NRT median of 22.0 cents across 30 round-trip routes.
Routes from NRT of similar length: Ulaanbaatar (1,897 mi) at $503 and Hanoi (2,312 mi) at $382.
MIAT Mongolian Airlines had the cheapest fare on 2 of 30 NRT routes. It is the 18th longest of the 30 routes we track from NRT.
Of 17 departure airports with a fare to Irkutsk, Tokyo (NRT) ranked 16th at $1106. Lowest: $342 from Beijing (PEK); highest: $1507 from Nairobi (NBO); 4 nonstop. Cheapest-fare airlines (routes): Air China (4), S7 Airlines (3), Egyptair (2), Asiana (1), China Eastern (1) and MIAT Mongolian Airlines (1), plus 5 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Tokyo, Asia/Irkutsk; flight time is our estimate.