Hotel rooms were booked out well in advance
Hoteliers say hotel accommodation was the first to go with bookings for the Fleadh coming thick and fast following the news that Sligo was to host the festival.
Pitched in the middle of the Fleadh activity will be the city-centre Glasshouse Hotel.
All its 116 rooms are booked out.
Manager James Crowley said the Fleadh committee had taken most of its rooms.
But he said that August is traditionally the busiest month of the season for hotels anyway.
He added: "Last August we were booked out for the month and there was no Fleadh."
A month ago, the Clarion Hotel had only a few rooms left, with the hotel having been almost booked out for the week of the fleadh.
Zilma Ketezinskaite, of the hotels sales staff, said they had been inundated with enquiries from all over Ireland and abroad.
She added: "Mostly I would say it was families but there were also couples and singles. It was really mixed."
For the Radisson Blu Hotel, Sales Manager Celine Kilgannon said they would have a wedding every Friday and Saturday night so they would be full with that.
"We would have 98% occupancy every night in August," she said.
However, she said she was sure people would be booking in mid-week for some rooms that were available.
A spokeswoman for the Sligo Park Hotel said they had very limited accommodation available.
She added that they were working closely with the fleadh committee, and was delighted to have visitors coming from near and far.
Hotels across the county and beyond will also benefit with the spin off from the Fleadh with rooms being booked in Enniscrone, Bundoran and Leitrim.