How do you get to Bhutan from Boston?

You could take a plane:

Logan International Airport, Boston TO London-Heathrow Airport ON American Airlines

London-Heathrow Airport TO Indira Gandhi International Airport, Delhi ON British Airways OR Kingfisher Airlines

Indira Gandhi International Airport, Delhi TO Paro Airport, Bhutan ON DrukAir

You could drive if you really wanted to:

Fly to Paris

Drive to Strasbourg and cross into Germany

Drive to Gorlitz and cross into Poland

Drive to Przemysl and cross into Ukraine

Drive to Luhansk and cross into Russia

YOU ARE NOW IN ASIA

Drive to Omsk and cross into Kazakhstan

Drive to Almaty and cross into Kyrgyzstan

Drive to Kara-Say and cross into China

Drive right to the bottom of the country to Yadong and cross into Bhutan

YOU HAVE ARRIVED IN BHUTAN