Best way to travel between

Ulaanbaatar
Phnom Penh
Travel Modes
Price
Distance
Duration
CO2
flight
$475.1
4571.14 km
20h 38mins
493.68 kgs
 
train
$555.8
5830.24 km
121h 12mins
309.0 kgs
 
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Tranport Distance Time(hrs) Cost(local) Cost(usd)
Flight 4571.14 km 20h 38mins 1,901,669 KHR 475.1
Train 5830.24 km 121h 12mins 2,224,684 KHR 555.8
Take Car from Ulaanbaatar to Ulan Bator
Time: 33mins Cost: 12,008 KHR; $ 2.7 - 3.3 USD CO2 Emission: 2.35 kgs
Take Flight from ULN to SGN
Time: 7h 59mins Cost: 1,841,228 KHR; $ 414.0 - 506.0 USD CO2 Emission: 458.11 kgs
Take Bus from Ho Chi Minh City Airport to Phnom Penh
Time: 9h 32mins Cost: 48,432 KHR; $ 10.9 - 13.3 USD CO2 Emission: 9.35 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Ulaanbaatar and Phnom Penh is to travel by air, which will cost about 1,901,268 KHR or 427.50 USD.