Allegiant
Allegiant guide with airline codes, Las Vegas base, fleet, seat options, baggage, check-in, Allways Rewards and airport transportation to your hotel.
- Aircraft
- 124
- Destinations
- 124
- Hub
- LAS
Landing with Allegiant?
Pick your arrival airport. Fixed price, and a driver in arrivals with your name on a sign.
About Allegiant
Allegiant is a US low-cost airline that flies leisure travelers between small and mid-size cities and vacation destinations, mostly on nonstop routes. Allegiant Air was founded in 1997 and is based in Las Vegas, Nevada. It is owned by Allegiant Travel Company, which has also owned Sun Country Airlines since May 2026; the two airlines keep separate brands for now. Allegiant is not a member of an airline alliance.
Las Vegas Harry Reid International Airport is its main base, alongside major bases in Orlando Sanford, St. Pete–Clearwater and Phoenix–Mesa Gateway. Aircraft are also based at airports such as Cincinnati, Fort Lauderdale, Indianapolis, Nashville, Pittsburgh and Punta Gorda. The network covers about 124 cities across the United States, with many routes to Florida, Las Vegas, Arizona and other leisure spots.
The fleet of about 124 aircraft is made up of Airbus A319 and A320 jets and Boeing 737 MAX 8-200s.
Schedules, aircraft assignments, terminals and fare rules can change. Confirm operational details directly with Allegiant before travel.
Where Allegiant flies
Many Allegiant routes run only a few days a week, and some are seasonal. Check the days and dates on sale for your route before you plan your trip.
Florida
Flights to Orlando Sanford, St. Pete–Clearwater, Punta Gorda, Sarasota, Fort Lauderdale and Destin–Fort Walton Beach from cities across the Midwest, Northeast and South. Routes for fall 2026 include Fort Lauderdale to Boston, Kansas City, Omaha and Pittsburgh, and St. Pete–Clearwater to Philadelphia.
Las Vegas and the West
Flights to Las Vegas, Phoenix–Mesa and Provo, and from Western cities such as Bellingham, Boise and Eugene to leisure destinations.
Small and mid-size cities
Most routes start in smaller US cities, such as Appleton, Des Moines, Grand Rapids, Knoxville and La Crosse, and fly nonstop to vacation spots.
Larger city airports
Allegiant also flies from some larger airports, including Philadelphia, Chicago Midway, Houston Hobby, Newark and Orange County (John Wayne).
Allegiant fleet
The figure of about 124 aircraft is Allegiant's passenger fleet as reported for mid-2026, not counting Sun Country Airlines. The aircraft shown at booking is not guaranteed until departure.
Airbus A320
Most of the fleet, used across the network.
Airbus A319
A smaller Airbus model used on routes with lower demand.
Boeing 737 MAX 8-200
A newer high-density version of the 737 MAX 8 with 190 seats.
Allegiant cabin classes
Allegiant has a single economy cabin. The base fare covers the seat and a personal item; other services are added as extras or in bundles when you book. Check the seat map and fare conditions before you buy.
Economy
One economy cabin on every aircraft. A seat is assigned at check-in if you do not choose one.
Allegiant Extra
Seats with extra legroom, sold as an upgrade on aircraft that have them.
Bundles
Bundles combine items such as bags, seat selection and flexibility. They can only be bought at the original booking and cannot be changed.
Trip Flex
An option bought at booking that allows one change to your date, flight or destination; any fare difference still applies.
Practical information
BaggageCabin bags, checked bags, missing luggage
Allegiant baggage allowances depend on fare and the extras you add. Allowances are shown during booking.
Every fare includes one personal item up to 8 x 14 x 18 in (20 x 35 x 45 cm) that fits under the seat. A carry-on bag up to 10 x 16 x 22 in (25 x 40 x 55 cm) depends on fare.
Checked bags depend on fare. Each bag can weigh up to 50 lb (22 kg) with combined dimensions up to 80 in (203 cm) before overweight or oversize rules apply.
Sports equipment, pets, oversized items and medical equipment follow separate rules. Check the official Allegiant site before you fly.
Check-in and boardingSteps before departure
Online and mobile check-in on allegiantair.com or the Allegiant app opens 24 hours before departure and closes 45 minutes before the scheduled flight time. Airport check-in also closes 45 minutes before departure.
Confirm the airport and departure time. Allegiant often uses smaller airports in large metro areas.
Bring a valid government-issued photo ID for security screening.
Check in online or in the app as soon as it opens, 24 hours before departure.
Use the mobile boarding pass in the app or print it. Every passenger must have a boarding pass before departure.
Allow time for bag drop and security, and finish check-in at least 45 minutes before departure.
Lounges
Allegiant does not operate airport lounges. Travelers can use the public areas and any independent lounges open to all passengers at their departure airport.
Loyalty program
Allways Rewards is Allegiant's loyalty program. Members earn points on Allegiant purchases, including flights, and with the Allways Rewards Visa card, and redeem them toward Allegiant travel. Sun Country Rewards stays a separate program for now. Program rules change, so check your account for the conditions that apply to your trip.
Flight status and customer serviceOfficial sources
For current operational information, use Allegiant's official services:
allegiantair.com for booking, check-in, trip management and flight status
Available for iOS and Android, with mobile boarding passes and trip updates
Allegiant airports
Allegiant often flies from the smaller airport in a metro area. In Orlando it uses Orlando Sanford (SFB), in the Tampa Bay area St. Pete–Clearwater (PIE), and in Phoenix Phoenix–Mesa Gateway (AZA), not the main international airport in each area. Check the airport on your ticket before you book a transfer.
Allegiant's main base, with nonstop flights to Las Vegas from cities across the United States. Allegiant uses Terminal 1.
Book a transfer →Airport detailsAirport transportation for Allegiant passengers
Public transport, authorized taxis, shared shuttles or a pre-booked private transfer. Arriving long-haul or with a lot of luggage is the case for booking ahead: fixed price, and a driver in arrivals with your name on a sign.
Airport Transportation is an independent platform and is not affiliated with or endorsed by Allegiant.
Allegiant FAQs
What are Allegiant's airline codes?
Allegiant's IATA code is G4, its ICAO code is AAY, and its callsign is ALLEGIANT.
What is Allegiant's main hub?
Las Vegas Harry Reid International Airport (LAS). Orlando Sanford, St. Pete–Clearwater and Phoenix–Mesa Gateway are other major bases.
Is Allegiant part of an airline alliance?
No. Allegiant is not a member of Star Alliance, SkyTeam or oneworld.
What is Allegiant's frequent-flyer program?
Allways Rewards.
Which terminal does Allegiant use in Las Vegas?
Allegiant uses Terminal 1 at Harry Reid International Airport. Confirm on your boarding pass before travel.
Does Allegiant fly to Indianapolis?
Yes. Indianapolis International (IND) is an Allegiant base, with nonstop flights to leisure destinations including Florida and Las Vegas.
Does Allegiant fly to Fort Lauderdale?
Yes. Fort Lauderdale–Hollywood International (FLL) is an Allegiant base, with nonstop flights to cities including Boston, Kansas City, Omaha and Pittsburgh.
Does Allegiant fly to Philadelphia?
Yes. Allegiant flies from Philadelphia International (PHL), including nonstop flights to St. Pete–Clearwater.
When does Allegiant online check-in open?
Online and mobile check-in opens 24 hours before departure and closes 45 minutes before the scheduled flight time.
How big can my Allegiant personal item be?
Up to 8 x 14 x 18 in (20 x 35 x 45 cm), and it must fit under the seat in front of you. A larger carry-on bag depends on fare.
Is Allegiant the same airline as Sun Country?
No. Both airlines are owned by Allegiant Travel Company since May 2026, but they fly as separate airlines with their own brands, bookings and loyalty programs for now.
Is Airport Transportation affiliated with Allegiant?
No. Airport Transportation is an independent transportation-booking platform and is not affiliated with or endorsed by Allegiant.
Information reviewed in October 2026. Airline schedules, fleet figures, baggage rules and passenger services are subject to change.