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Ulaanbaatar to Tokyo flights in December 2026 from $244 UBN → HND, NRT

Chinggis Khaan International Airport (UBN) → Haneda Airport (HND), Narita International Airport (NRT)

For departures in December 2026, the cheapest return found recently is $520 with MIAT Mongolian Airlines, 15 Dec – 23 Dec, found 3 days ago. The cheapest one-way found recently is $244 with Air China, 5 Dec, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 13 departure dates is usually $520 to $608. Across all 102 departure dates we hold on this route, it is usually $517 to $566. Of the 10 months with enough return fares to compare, 8 are usually cheaper than December 2026.

Cheapest return found recently

$520

15 Dec – 23 Dec · MIAT Mongolian Airlines

Chinggis Khaan International Airport (UBN) → Narita International Airport (NRT)

out 1 stop, back nonstop

found 3 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$418

1 Dec – 15 Dec · Air China

Chinggis Khaan International Airport (UBN) → Haneda Airport (HND)

out 1 stop, back 1 stop

found 7 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
1 Dec – 15 Dec$418Air Chinaout 1 stop, back 1 stopfound 7 days agoSee prices for these dates
6 Dec – 11 Dec$446Air Chinaout 1 stop, back 1 stopfound 5 days agoSee prices for these dates
14 Dec – 19 Dec$519MIAT Mongolian Airlinesout nonstop, back 1 stopfound 7 days agoSee prices for these dates
15 Dec – 23 Dec$520MIAT Mongolian Airlinesout 1 stop, back nonstopfound 3 days agoSee prices for these dates
13 Dec – 19 Dec$521MIAT Mongolian Airlinesout 1 stop, back nonstopfound 7 days agoSee prices for these dates

Every date we hold

13 departure dates

1 Dec – 15 Dec: $418, found 7 days ago6 Dec – 11 Dec: $446, found 5 days ago8 Dec – 28 Dec: $600, found 3 days ago13 Dec – 19 Dec: $521, found 7 days ago14 Dec – 19 Dec: $519, found 7 days ago15 Dec – 23 Dec: $520, found 3 days ago18 Dec – 27 Dec: $638, found 4 days ago19 Dec – 27 Dec: $627, found 4 days ago20 Dec – 25 Dec: $571, found 4 days ago21 Dec – 2 Jan 2027: $563, found 4 days ago26 Dec – 9 Jan 2027: $591, found 6 days ago28 Dec – 6 Jan 2027: $612, found 4 days ago30 Dec – 7 Jan 2027: $608, found 6 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec – 15 Dec$418Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
6 Dec – 11 Dec$446Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
8 Dec – 28 Dec$600MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
13 Dec – 19 Dec$521MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out 1 stop, back nonstopfound 7 days agoSee prices for these dates
14 Dec – 19 Dec$519MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back 1 stopfound 7 days agoSee prices for these dates
15 Dec – 23 Dec$520MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
18 Dec – 27 Dec$638MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back nonstopfound 4 days agoSee prices for these dates
19 Dec – 27 Dec$627Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)out 1 stop, back nonstopfound 4 days agoSee prices for these dates
20 Dec – 25 Dec$571MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back nonstopfound 4 days agoSee prices for these dates
21 Dec – 2 Jan 2027$563MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back nonstopfound 4 days agoSee prices for these dates
26 Dec – 9 Jan 2027$591MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back nonstopfound 6 days agoSee prices for these dates
28 Dec – 6 Jan 2027$612MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back nonstopfound 4 days agoSee prices for these dates
30 Dec – 7 Jan 2027$608MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Narita International Airport (NRT)out nonstop, back 1 stopfound 6 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $418.

November 2026From $5478 departure dates27 Nov – 4 Dec · found 5 days agoSee prices for these datesEvery date in November 2026
December 2026From $418Cheapest seen13 departure dates1 Dec – 15 Dec · found 7 days agoSee prices for these dates
January 2027From $50414 departure dates26 Jan 2027 – 5 Feb 2027 · found 7 days agoSee prices for these datesEvery date in January 2027
February 2027From $5079 departure dates1 Feb 2027 – 8 Feb 2027 · found 4 days agoSee prices for these datesEvery date in February 2027
March 2027From $49417 departure dates23 Mar 2027 – 2 Apr 2027 · found 2 days agoSee prices for these datesEvery date in March 2027
April 2027From $50412 departure dates12 Apr 2027 – 22 Apr 2027 · found 3 days agoSee prices for these datesEvery date in April 2027
May 2027From $5007 departure dates1 May 2027 – 31 May 2027 · found 7 days agoSee prices for these datesEvery date in May 2027
June 2027From $5213 departure dates22 Jun 2027 – 1 Jul 2027 · found 2 days agoSee prices for these dates
July 2027From $5192 departure dates14 Jul 2027 – 28 Jul 2027 · found 2 days agoSee prices for these dates
August 2027From $5164 departure dates1 Aug 2027 – 14 Aug 2027 · found 5 days agoSee prices for these dates
September 2027From $5172 departure dates20 Sept 2027 – 26 Sept 2027 · found 6 days agoSee prices for these dates
October 2027From $51711 departure dates13 Oct 2027 – 22 Oct 2027 · found 5 days agoSee prices for these datesEvery date in October 2027

One-way

In December 2026, the cheapest one-way fare on each of 4 departure dates is usually $244 to $245. Across all 34 departure dates we hold on this route, it is usually $287 to $289. Of the 5 months with enough one-way fares to compare, December 2026 is usually the cheapest.

Cheapest one-way found recently

$244

5 Dec · Air China

Chinggis Khaan International Airport (UBN) → Haneda Airport (HND)

1 stop

found 2 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
5 Dec$244Air China1 stopfound 2 days agoOpen this trip
4 Dec$244Air China1 stopfound 3 days agoOpen this trip
1 Dec$245Air China1 stopfound 4 days agoOpen this trip
7 Dec$245Air China1 stopfound 6 days agoOpen this trip

Every date we hold

4 departure dates

1 Dec: $245, found 4 days ago4 Dec: $244, found 3 days ago5 Dec: $244, found 2 days ago7 Dec: $245, found 6 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec$245Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)1 stopfound 4 days agoOpen this trip
4 Dec$244Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)1 stopfound 3 days agoOpen this trip
5 Dec$244Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)1 stopfound 2 days agoOpen this trip
7 Dec$245Air ChinaChinggis Khaan International Airport (UBN) → Haneda Airport (HND)1 stopfound 6 days agoOpen this trip

Which month looks cheapest?

December 2026 is the cheapest month — from $244.

November 2026From $2462 departure dates27 Nov · found 7 days agoOpen this tripEvery date in November 2026
December 2026From $244Cheapest seen4 departure dates5 Dec · found 2 days agoOpen this trip
January 2027From $2981 departure date1 Jan 2027 · found 7 days agoOpen this tripEvery date in January 2027
February 2027From $2862 departure dates10 Feb 2027 · found 2 days agoOpen this tripEvery date in February 2027
March 2027From $2855 departure dates28 Mar 2027 · found 5 days agoOpen this tripEvery date in March 2027
April 2027From $2892 departure dates13 Apr 2027 · found 4 days agoOpen this tripEvery date in April 2027
May 2027From $2885 departure dates7 May 2027 · found 2 days agoOpen this tripEvery date in May 2027
June 2027From $2881 departure date4 Jun 2027 · found 2 days agoOpen this trip
August 2027From $2892 departure dates17 Aug 2027 · found 2 days agoOpen this trip
September 2027From $2873 departure dates20 Sept 2027 · found 6 days agoOpen this trip
October 2027From $2877 departure dates18 Oct 2027 · found 5 days agoOpen this tripEvery date in October 2027

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work