Spring Airlines' (SHA:601021) available seat kilometers, or passenger capacity, in April fell 2% year on year to 5.54 billion, according to a Shanghai bourse filing on Saturday.
The airline operator's shares fell by less than 2% during Monday's afternoon trade.
Revenue passenger kilometers for the month slipped 1.7% to 5.14 billion from a year earlier.
The company carried 9,178.92 tons of cargo and mail, 5% higher than the prior year.