Allegiant Travel (ALGT) said Monday that its preliminary total system passenger traffic for March increased by 14% year over year to 1.9 million passengers.

Total system available seat miles rose by 20% from a year earlier, while departures increased by almost 20%, the travel company added.

For Q1, the company said total system passengers increased 8.4% year over year to nearly 4.5 million. Total system available seat miles rose by 14% and departures increased by 13.7%, the company said.

Allegiant said its estimated average fuel cost was $2.52 per gallon for March and $2.61 per gallon for Q1.

Shares of the company were down 2.4% in early trading Monday.

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