Although major online market players like Amazon still have to accept bitcoin or ethereum. However you can buy with crypto currency at some of places. TapJets,is one of them.TAPjet is Largest Private Jet Instant Booking Platform and they are accepting Ethereum from its customers.Now the users can book private jets using Ethereum cryptocurrency in addition to traditional credit card and bank wire payments. Others include:-
finnatravel.com
Key4co.in
You can find a complete list of companies that accepts BTC and other coins by clicking here