Best way to travel between

Phnom Penh
Vientiane
Travel Modes
Price
Distance
Duration
CO2
bus
$46.0
1450.24 km
32h 58mins
43.51 kgs
 
train
$53.0
1713.6 km
26h 1mins
90.82 kgs
 
flight
$151.0
780.3 km
1h 37mins
84.27 kgs
 
drive
$170.0
1184.4 km
18h 58mins
151.6 kgs
 
Tranport Distance Time(hrs) Cost(local) Cost(usd)
Bus 1450.24 km 32h 58mins 367,332 LAK 46.0
Train 1713.6 km 26h 1mins 423,230 LAK 53.0
Flight 780.3 km 1h 37mins 1,205,807 LAK 151.0
Drive 1184.4 km 18h 58mins 1,357,532 LAK 170.0
Take Bus from Phnom Penh to Siem Reap
Time: 7h 13mins Cost: 127,768 LAK; $ 14.4 - 17.6 USD CO2 Emission: 9.59 kgs
Take Bus from Siem Reap to Vientiane
Time: 24h 43mins Cost: 239,564 LAK; $ 27.0 - 33.0 USD CO2 Emission: 33.94 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Phnom Penh and Vientiane is to travel by bus, which will cost about 367,332 LAK or 41.40 USD.