Best way to travel between

Kathmandu
Vientiane
Travel Modes
Price
Distance
Duration
CO2
flight
$264.0
2927.99 km
12h 27mins
316.22 kgs
 
drive
$750.0
4802.89 km
85h 57mins
614.77 kgs
 
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Tranport Distance Time(hrs) Cost(local) Cost(usd)
Flight 2927.99 km 12h 27mins 2,108,167 LAK 264.0
Drive 4802.89 km 85h 57mins 5,989,110 LAK 750.0
Take Flight from KTM to KKC
Time: 6h 24mins Cost: 1,996,370 LAK; $ 225.0 - 275.0 USD CO2 Emission: 238.15 kgs
Take Car from Khon Kaen to Khon Kaen
Time: 29mins Cost: 63,884 LAK; $ 7.2 - 8.8 USD CO2 Emission: 1.27 kgs
Take Bus from Khon Kaen to Vientiane
Time: 2h 33mins Cost: 47,913 LAK; $ 5.4 - 6.6 USD CO2 Emission: 21.4 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Kathmandu and Vientiane is to travel by air, which will cost about 2,108,167 LAK or 237.60 USD.