Southwest Airlines will roll out “redeye” flights from Las Vegas to Orlando, Florida, and to Baltimore-Washington International Airport in February.

The Dallas-based airline, the busiest commercial air carrier at Harry Reid International Airport, announced Thursday that the two routes would be among the five that will begin Feb. 14 and tickets are on sale.

A Southwest spokesman said more redeye routes are expected to be unveiled in future months.

Thursday’s announcement came the same day Southwest announced plans to discontinue its decades-old open seating boarding system. Beginning next year, Southwest will implement assigned seating and premium seating with greater legroom for passengers.

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