Airport unlock

Hello everyone I would like some suggestions from players as I am new to the game and planning to unlock new airports which one do you this I should I am currently playing at INN. I am thinking of nagoya should i ??

I think you should unlock IAD because it has two runways and it is the perfect airport for silver planes.

LHR is probably the best. IAD second, MCT third. However if you want a lot of player contracts, NGO is good as you will only ever get L and X, as no M or S can reach