How far is it from Shanghai to South Korea?

It is about 879 kilometers from Shanghai to Seoul, South Korea. If you choose the following means of transportation:

Normal walking? 6 kilometers/hour? 6 days, 2 hours and 30 minutes

Riding a bicycle? 20 km/h, 1 day, 19 hours and 57 minutes

Cruise ship? 28 km/h (still water speed), 1 day, 7 hours and 23 minutes

Riding a motorcycle? 50 km/h 17 hours 34 minutes

Driving a car? 80 km/h 10 hours 59 minutes

Taking a train? 150 km/h 6 hours 16 minutes

By high-speed rail? 250 kilometers/hour, 3 hours and 30 minutes

By plane? 800 kilometers/hour, 1 hour and 5 minutes?