A new flight launched Wednesday at Dayton International Airport, the same day it posted its first uptick in traffic in several months.

The airport posted an ever-so-slight uptick in passengers to 85,100 in April, boosted by significant traffic gains in two of its most highly-touted airlines. American Airlines posted an 8.3 percent passenger increase to 34,300 on the year, while new carrier Allegiant Air has almost tripled its passengers since it introduced flights in Dayton a year ago to about 4,200…