Book Allegiant Air flights (G4)

View $39 flight on Sun, Oct 11, 2026Opens in a new window

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Trending Allegiant Air Flights

Prices were available within the past 7 days and start at $39 for one-way flights and $78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Allegiant Air
Sun, Oct 25 - Thu, Oct 29
TTN
Trenton
FLL
Fort Lauderdale
$78 Roundtrip, just found
$78
Roundtrip
just found
Select Allegiant Air flight, departing Sun, Oct 25 from Trenton to Fort Lauderdale, returning Thu, Oct 29, priced at $78 just found
Allegiant Air
Sun, Sep 20 - Thu, Sep 24
TTN
Trenton
FLL
Fort Lauderdale
$83 Roundtrip, just found
$83
Roundtrip
just found
Select Allegiant Air flight, departing Sun, Sep 20 from Trenton to Fort Lauderdale, returning Thu, Sep 24, priced at $83 just found

Frequently asked questions

Can I fly from the US on Allegiant Air?
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.
Where does Allegiant Air fly to?
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)
Can I earn Allegiant Air miles with Expedia?
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.
How much is carry-on for Allegiant Air?
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.
What size carry-on is allowed on Allegiant Air?
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.
How much are checked bags on Allegiant Air?
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.
Do you have to pay for seat selection on Allegiant Air?
Yes, seat selection is available for an additional fee. Passengers can choose standard, preferred, or extra-legroom seats for an added charge during their Allegiant Air reservation.
How far in advance can you check in with Allegiant Air?
For your Allegiant Air flight, online check-in opens 24 hours before departure and closes one hour before flight time. Airport check-in counters open two to three hours before departure and close 45 minutes before takeoff.
What kind of airline is Allegiant Air?
Allegiant Air is a low-cost carrier based in the United States, specializing in domestic flights and limited international routes. It provides affordable travel options with a no-frills approach to air travel.
Is Allegiant Air a good airline to fly with?
Travelers who fly Allegiant Air appreciate its low fares and dependable service. The airline is especially popular among domestic passengers seeking affordable nonstop flights between smaller U.S. cities and major vacation destinations. What type of planes does Allegiant Air fly?Allegiant Air operates a fleet of Airbus A320 family aircraft, which are well-suited for short- and medium-haul flights within the US.
Does Allegiant Air have First or Business Class?
No, your Allegiant Air ticket includes an all-Economy cabin. There are no First or Business Class options, but passengers can select extra-legroom seats for added comfort.

Travel information

Airline Information

Airline Name
Allegiant Air
Airline Code
G4
Roundtrip price
from $78
Airline Information

*Flight schedules are subject to change.

*Available to One Key members.