If he and Kohli can raise money for a space shuttle ride, maybe they can be there in 10
Flight from Austria - Miami: 8-9 hours
Space Shuttle from Miami - Airfield in UK: 20 mins
Train from Airfield - London: 2 hours
Time for toilet breaks: 5 hours
Total Time: 16 hours 20 mins, so longer than hitchhiking with me.