Best way to travel between

Vientiane
Ulaanbaatar
Travel Modes
Price
Distance
Duration
CO2
flight
$502.0
3424.14 km
12h 41mins
369.81 kgs
 
train
$625.0
6375.6 km
111h 36mins
337.91 kgs
 
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Tranport Distance Time(hrs) Cost(local) Cost(usd)
Flight 3424.14 km 12h 41mins 866,035 MNT 502.0
Train 6375.6 km 111h 36mins 1,078,231 MNT 625.0
Take Flight from VTE to ULN
Time: 10h 7mins Cost: 862,585 MNT; $ 450.0 - 550.0 USD CO2 Emission: 368.36 kgs
Take Car from Ulan Bator to Ulaanbaatar
Time: 32mins Cost: 3,450 MNT; $ 1.8 - 2.2 USD CO2 Emission: 1.77 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Vientiane and Ulaanbaatar is to travel by air, which will cost about 866,035 MNT or 451.80 USD.