Further investment into the Airport and Sea Terminal would likely be needed if the Island reached the target of 500,000 visitors by 2032.
That's according to Infrastructure Minister Chris Thomas, who was asked what the impact that number of visitors would have on airport and harbour usage.
Mr Thomas noted that some existing air and sea routes are not currently operating to capacity, and so the extra people may just fill seats already available.
Airlines may then look at using larger aircraft to accommodate extra demand.
It's added that the department is currently undertaking a refurbishment programme for the Sea Terminal Building, which is funded for the first two years.
easyJet flight returned to Liverpool after winds stop passengers getting off
Period products already offered throughout schools, says minister
MHKs to discuss Manx car insurance in UK
Will ring doorbell users need to register for data protection?
Major reservoir safety projects finished
Second weather warning this weekend
Does government plan to press ahead with min wage rise?
Where has government found £11m in savings?
