Passenger traffic at Richmond International Airport in May set another record for any month.

The airport handled 392,263 passengers in May, surpassing the previous mark set in August, the Capital Region Airport Commission reported Tuesday.

This is the fifth time since October 2017 that a one-month record has been established at the airport. 

May’s passenger traffic marked a 9.7% increase compared with the same month in 2018.

For the first 11 months of the current fiscal year, passenger traffic is up 12.5%. 

Most major airlines reported year-over-year gains for May, led by United Airlines (up 17.78%), American Airlines (14.57%), JetBlue Airways (up 12.72%), Spirit Airlines (up 11.70%) and Delta Air Lines (2.43%). Southwest Airlines had a 13.19% year-over-year decline. 

Allegiant, which is offering twice-weekly nonstop service to four markets, reported an 89.9% increase in its passenger count.

Delta remained the airport’s largest carrier with a 32.03% market share. American was next with a 29.70% share, followed by United (14.81%), JetBlue (11.48%), Southwest Airlines (5.35%) and Spirit Airlines (4.01%).

Starting Aug. 10, Southwest Airlines is expanding service to Florida. It is adding seasonal nonstop service on Saturdays and Sundays between Richmond and Tampa International Airport and the Dallas-based carrier will resume its seasonal nonstop Saturday service to Orlando from Richmond.