Yes, you can book a flight with Allegiant Air to destinations across the United States, as well as select locations in Mexico and the Caribbean. Allegiant Air flights operate from regional airports across the U.S., with major hubs in:

• Las Vegas (LAS)

• Orlando Sanford (SFB)

• St. Petersburg–Clearwater (PIE)

• Phoenix–Mesa (AZA)

While the airline does not offer long-haul international routes, travelers can book flights to many leisure destinations directly from smaller U.S. cities without connections.

Allegiant Air flights cover a wide network of domestic routes, with select service to international destinations. You can find Allegiant Air deals to:

• Las Vegas (LAS)

• Orlando (SFB)

• St. Petersburg (PIE)

• Fort Lauderdale (FLL)

• Nashville (BNA)

• Phoenix (PHX)

• Punta Cana (PUJ)

• Cancun (CUN)

Allegiant Air does not have its own frequent flyer program. However, you can still earn One Key™ rewards with your Allegiant Air booking through Expedia. OneKeyCash™ earned from your booking can be used for future travel.OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

When you fly Allegiant Airthe carry-on allowance depends on your cabin class:

• One personal item for all passengers.

• One small carry-on bag can be purchased for an additional fee.

With your Allegiant Air flight booking, your carry-on items must meet the following size requirements:

• One carry-on bag must not exceed 16 x 15 x 7 inches 40 x 38 x 17 cm).

• One personal item should fit under the seat in front of you.

All carry-on items must comply with Allegiant Air's baggage policies.

Checked baggage allowances is not included in the base fare and depends on the type of Allegiant Air booking you make:

• Economy Class: One checked bag may incur a fee, weight allowance is 50 lbs (23 kg) per passenger.

Additional or oversized bags will incur extra charges.