Allegiant Air operates from Terminal 1, Concourse B at Harry Reid International Airport (LAS) in Las Vegas. Allegiant is headquartered in Las Vegas and is one of the airport’s largest carriers — all Allegiant flights, arrivals and departures, use Terminal 1.
Allegiant Air — Terminal & Gate Quick Reference
Terminal: Terminal 1
Concourse: Concourse B
Check-In: Terminal 1, Level 2 (Departures)
Baggage Claim: Terminal 1, Level 1 (Arrivals)
Airport Code: LAS
About Allegiant Air at LAS
Allegiant Air is a Las Vegas-based ultra-low-cost carrier (ULCC) that connects Las Vegas to more than 130 small and mid-sized cities across the United States. Because LAS is Allegiant’s home airport, the airline operates a high volume of daily flights from Terminal 1. Concourse B is the busiest concourse at Terminal 1, housing Allegiant alongside Spirit, Frontier, American, and other carriers.
Allegiant charges separately for carry-on bags, checked bags, and seat selection. Budget extra time at check-in if you have baggage to pay for or questions about your booking — Concourse B security lines can be long on peak travel days.
Getting to and from Terminal 1
Terminal 1 is the larger of LAS’s two terminals and is approximately 3–5 miles from the Las Vegas Strip. Taxis are stationed curbside outside Doors 1–4 on Level 1. Rideshare pickup requires a walk to the designated garage. Personal Sedan Services provides pre-booked private transfers with meet-and-greet at baggage claim — no surge pricing, no garage walk, fixed rate confirmed before you land.
For a complete comparison of all ground transportation options and all airlines at LAS, see our Las Vegas Airport terminal guide.
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