How sweet could it be?

I really want the professionals to shed more light on this if it could be actualized and how easier could it be and what implication can it have on bitcoin

From 2015 onwards cheapair.com providing this service for booking flight tickets.

If you want to find the airport where you can use the bitcoin legally means Tokyo airports is your zone to use your top all crypto currencies.
This is day today usage things for this you can find the good project which can be used to get the money on usage.

How sweet could it be?

I really want the professionals to shed more light on this if it could be actualized and how easier could it be and what implication can it have on bitcoin

i am 1000% sure, one day it will happen. in fact we can purchase our daily uses things by bitcoin.

From 2015 onwards cheapair.com providing this service for booking flight tickets.

This must be huge if it happens. I saw last time upon checking that there is a travel agency accepting bitcoin.
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This is good news cause lot's  of company are accepted bitcoin as payments in airline transportation. This travel agency are open minded in the new technology of cryptocurrency. I hope many business are like this. Bitcoin as payments are continues growing cause many of the company now seeing the value the value of bitcoin.

This came to my mind when OP is asking about travelling tickets for bitcoin.  There is an airport on Australia that's also crypto friendly if you guys haven't heard it.

Brisbane International is Now the World’s First Crypto-Friendly Airport