Travelzoo offers a CitySights New York Hop-On Hop-Off Sightseeing Bus Tour for $39. That's tied with our mention from a month ago and the lowest price we could find today by $5. This double-decker bus tour offers hop-on/hop-off access on your choice of an uptown or downtown tour. Book this travel deal by March 31 for tours through the same date.
Of note, you may also buy a Child's Ticket for $29. That's another low by $5.