Allegiant's small personal-item rule, route-by-route bag pricing, and the Allways Rewards programme.
Allegiant baggage model
Allegiant Air is a US ultra-low-cost carrier focused on small-city to leisure-destination routes. The base fare includes only a 16 × 15 × 7 inch personal item, smaller than Spirit's or Frontier's. Carry-on, checked bags, seat selection, and even drinks on board are priced separately.
Personal item and carry-on
Personal item is 16 × 15 × 7 inches (smaller than the US LCC norm). A standard 18-inch underseat bag is too tall by Allegiant's published rule, though enforcement varies.
Carry-on is 22 × 16 × 10 inches and costs:
- USD 10–75 at booking, depending on route
- USD 25 to USD 75 at online check-in
- USD 50 at the airport desk
- USD 100 at the boarding gate
Allegiant's pricing is the most route-variable in the US LCC market, the same carry-on can be USD 18 on a Mesa-to-Provo flight and USD 70 on a Florida summer flight.
Checked bags
Checked bag pricing is also route-variable: USD 18–50 online for the first bag. Overweight (41–70 lb): USD 50 per bag. Overweight (71–100 lb): USD 75 per bag. Oversize (over 80 linear inches): USD 75.
Allways Rewards
Allways Rewards is free; the Allways Rewards Visa (USD 59 annual fee) gives priority boarding, a free drink, and 2× points on Allegiant purchases. Worth it if you fly Allegiant 3+ times per year.
Allegiant-specific gotchas
- Allegiant does not interline with any other carrier. Missed connections to other airlines are entirely your problem.
- Many Allegiant routes operate twice or three times per week. A cancelled flight may strand you for days. Carry trip-cancellation insurance.
- Allegiant fleet has been mostly upgraded to Airbus A320s; the legacy MD-80s are retired.
- The carrier sells a vacation-package bundle (flight + hotel + car) that often beats the all-in à-la-carte price for Las Vegas and Florida trips.
Sources & further reading
The fees, allowances and procedures cited in this guide are cross-checked against carrier and regulator publications. For primary sources and official rulings, see:
- IATA, international airline trade body; canonical source for IATA codes, baggage tracking standards and industry statistics.
- ICAO, UN civil aviation agency; the authoritative reference for ICAO codes, safety standards and global aviation policy.
- OpenFlights public dataset, the open airport, airline and route dataset that powers the directory side of FlightHaven.