They put the fall down to President Donald Trump, saying his travel ban and protectionist policies are putting people off.
And it's not just in New York - one app released research in February showing the searches for flights to the US have fallen 17% since Mr. Trump's inauguration.
Lorna Shaddick reports.
IN: At the top...
OUT: SOC
DUR: 3.25
GENERIC: http://www.fsnradionews.com/feeds/0404TrumpTourism-generic-ls.mp3
Script:
At the top of the Rockefeller Centre in central Manhattan, I'm surrounded by visitors taking selfies in the city that never sleeps… but are these tourists taking in the New York skyline becoming a rarer sight themselves?
The Big Apple's marketing agency says the city now expects to draw 300,000 fewer foreign visitors this year than in 2016, a decline that could cost up to $600 million in lost sales.
And some experts think it's down, at least in part, to the attempted travel bans brought in by the New Yorker now in the White House - here's Hannah Sampson, News Editor at travel intelligence site, Skift.
SOT - Hannah Sampson, News Editor, Skift
There's a lot of surveys that have come out that have shown intent to visit from business travellers is down for the US, largely because of the travel ban. // Don't forget you had that one really tense weekend where there were people stuck at the airport for hours, there were protests at international airports, there were stories of people being pulled off planes. // I think the damages from those stories and those images are going to be pretty lasting.
On location - Lorna Shaddick, New York
Times Square is one of the busiest and best known tourist hotspots here in New York City, and there certainly seem to be plenty of visitors here at the moment. But statistics do show that the number of people coming to the US from overseas under President Donald Trump has gone down - in fact, spending on travel and tourism in the US went down by 3.3% in the final quarter of 2016, after he was elected, despite the fact it was up by 3% in the previous quarter. And the biggest component of that downturn was air travel.
Certainly, among those tourists we spoke to who HAVE still decided to come here, there are mixed feelings.
VOX POPS
We felt safe when we travelled so I don't know how this is going to change. So far it's been good, but I don't know what's in store for us in the future.
We have not faced any problems here, I don't feel there's any problem.
With, like, Trump and everything, we were kind of expecting it to be maybe a bit different - especially at the airport, we kind of thought we'd have a bit more hassle getting in, but obviously we didn't.
It's not just New York that's feeling the pinch. One UK travel search engine released data showing a 58% decline in searches for flights to Orlando and Tampa, and a 52% decline for Miami.
And the recent ban on laptops in the cabin on flights from certain destinations has also damaged America's viability as a business destination. Patricia Rojas Ungar is vice president for government relations at the US Travel Association, one of the Industry groups lobbying Mr. Trump - who is after all from the hotel industry himself - to change the tone.
SOT - Patricia Rojas-Ungar, Vice President of Government Relations, U.S. Travel Association
We may have a messaging issue that we have to address right away. We've been so focused, and the President has been so focused on security for the US…but we need to be able to balance that message of security with also a welcoming message to legitimate travellers.
There's still not enough data to know for sure whether there really is a tourism Trump slump… and experts say the strong dollar is another big factor putting people off. But for now, New York's just one of many US destinations working harder than ever to make sure visitors keep coming to take a bite out of the Big Apple. Lorna Shaddick, New York.