Best way to travel between Seoul, South Korea and Osaka, Osaka Prefecture, Japan

A: Seoul, South Korea

B: Osaka, Osaka Prefecture, Japan

Travel Modes: Price; Distance; Duration; CO2

drive: $108.3; 1220.8 km; 14h 13mins; 156.26 kgs

ferry: $159.74; 1114.0 km; 22h 57mins; 142.59 kgs

train: $177.65; 1189.15 km; 10h 24mins; 63.02 kgs

flight: $218.54; 899.03 km; 5h 5mins; 97.1 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Drive	1220.8 km	14h 13mins	11,002 JPY	108.3
Ferry	1114.0 km	22h 57mins	16,228 JPY	159.74
Train	1189.15 km	10h 24mins	18,047 JPY	177.65
Flight	899.03 km	5h 5mins	22,201 JPY	218.54

Take Drive from Seoul to Busan: Time: 4h 19mins Cost: 5,079 JPY; $ 45.0 - 55.0 USD CO2 Emission: 51.76 kgs
Take Ferry from Busan to Fukuoka: Time: 3h 5mins Cost: 15,442 JPY; $ 136.8 - 167.2 USD CO2 Emission: 27.1 kgs
Take Drive from Fukuoka to Osaka: Time: 6h 49mins Cost: 6,502 JPY; $ 57.6 - 70.4 USD CO2 Emission: 77.4 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Seoul, South Korea and Osaka, Osaka Prefecture, Japan is to travel by car/taxi, which will cost about 10,972 JPY or 97.20 USD.