Best way to travel between Chiang Rai Thailand and Siem Reap, Cambodia

A: Chiang Rai Thailand

B: Siem Reap, Cambodia

Travel Modes: Price; Distance; Duration; CO2

bus: $45.0; 1267.93 km; 19h 34mins; 38.04 kgs

bus: $77.0; 2250.28 km; 44h 52mins; 67.51 kgs

drive: $120.0; 1114.86 km; 16h 32mins; 142.7 kgs

flight: $147.0; 891.28 km; 3h 53mins; 96.26 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Bus	1267.93 km	19h 34mins	180,120 KHR	45.0
Bus	2250.28 km	44h 52mins	308,206 KHR	77.0
Drive	1114.86 km	16h 32mins	480,320 KHR	120.0
Flight	891.28 km	3h 53mins	588,392 KHR	147.0

Take Bus from Chiang Rai to Bangkok Mochit: Time: 11h 20mins Cost: 92,061 KHR; $ 20.7 - 25.3 USD CO2 Emission: 25.6 kgs
Take Bus from Bangkok Mochit Bus Terminal to Siem Reap: Time: 7h 13mins Cost: 88,059 KHR; $ 19.8 - 24.2 USD CO2 Emission: 12.44 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Chiang Rai Thailand and Siem Reap, Cambodia is to travel by bus, which will cost about 180,120 KHR or 40.50 USD.