Best way to travel between Tokyo, Japan and Vientiane

A: Tokyo, Japan

B: Vientiane

Travel Modes: Price; Distance; Duration; CO2

flight: $446.0; 4449.12 km; 12h 27mins; 480.5 kgs

flight: $500.0; 4383.75 km; 12h 57mins; 473.44 kgs

drive: $637.0; 5283.6 km; 96h 15mins; 676.3 kgs

train: $678.0; 5964.05 km; 100h 48mins; 316.09 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Flight	4449.12 km	12h 27mins	3,561,524 LAK	446.0
Flight	4383.75 km	12h 57mins	3,992,740 LAK	500.0
Drive	5283.6 km	96h 15mins	5,086,751 LAK	637.0
Train	5964.05 km	100h 48mins	5,414,155 LAK	678.0

Take Train from Tokyo to Narita Airport Terminal 2: Time: 53mins Cost: 183,666 LAK; $ 20.7 - 25.3 USD CO2 Emission: 3.54 kgs
Take Flight from NRT to VTE: Time: 9h 11mins Cost: 3,274,047 LAK; $ 369.0 - 451.0 USD CO2 Emission: 472.25 kgs
Take Car from Vientiane to Vientiane: Time: 18mins Cost: 103,811 LAK; $ 11.7 - 14.3 USD CO2 Emission: 1.36 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Tokyo, Japan and Vientiane is to travel by air, which will cost about 3,561,524 LAK or 401.40 USD.