Red, White and Blue Balloon Rally at Letchworth State Park is May 25-28. Six scheduled flights of 25 balloons with six flights scheduled from Friday night at 6:30pm and Saturday and Sunday at 6am and 6:30pm and Monday at 6am. Great for watching, awesome for photography and for $285 you can take a ride.
The launch site is the Archery Field Overlook just inside the Castile park entrance.