Allegiant Air Flights (G4) for Airline Reservations & Deals

Life happens and plans can change, so click on Expedia’s No change fee filter after you’ve hit search. This will display Allegiant Air flights that give you the option to amend your travel itinerary without a penalty. You’ll only pay the difference if the new fare is more expensive.

Allegiant Air flies to 399 destinations throughout North America, which means plenty of options for your next getaway. Whether you’re eager to book a flight to Allentown, Sanford or another exciting city, the best Allegiant Air flight deals are right here on Expedia.

A good way to pick up cheap last-minute Allegiant Air flights is to be flexible with your travel dates, departure and arrival times and airports. Another option is to search through our great last minute flights deals. Vacation plans not so flexible? Simply type in the details and compare the lowest prices on Allegiant Air tickets. Give in to your adventurous spirit and jet off on a spur-of-the-moment break to someplace you long to explore.

Cheap Allegiant Air flights with Expedia are only the beginning. Whether it’s a fantastic deal on an airfare, a cozy stay or a set of wheels, Expedia can help with almost every aspect of your travel escape. Download the free Expedia App and look up your flight status, access your itinerary and get alerts about any delays or gate changes. If you’re eager to save more, bundle your Allegiant Air flight with your car rental, hotel and activities into a vacation package.

It’s possible to earn and redeem miles through the Allegiant Air rewards program, allways rewards. Along with purchasing airline tickets, it’s a breeze to rack up points by hotels, car rentals and flying with the airline. If you’re a member of allways rewards, search for the program on Expedia’s checkout page to see if you’re eligible for mileage.