Allegiant Air·None
Allegiant Seat Selection & Upgrades
Allegiant Seat Selection & Upgrades — Summary
How Allegiant seat selection works by fare, extra legroom options, upgrade routes, and the family seating rules that let children sit with a parent free.
Key Travel Facts & Insights
- Choosing a seat: All seat assignments are paid.
- Extra legroom: Allegiant Extra seats in rows 1–3 offer additional legroom and are sold at a premium..
- Upgrades: Allegiant Extra can be purchased at booking or check-in where the aircraft is so equipped..
- Seating children with a parent: Allegiant seats children 13 and under with an accompanying adult at no cost under DOT rules..
Choosing a seat
All seat assignments are paid. Declining gets a free random assignment at check-in.
Extra legroom
Allegiant Extra seats in rows 1–3 offer additional legroom and are sold at a premium.
Upgrades
Allegiant Extra can be purchased at booking or check-in where the aircraft is so equipped.
Seating children with a parent
Allegiant seats children 13 and under with an accompanying adult at no cost under DOT rules.
Cabins available
Allegiant operates: Standard, Allegiant Extra.
Allegiant seats & upgrades — common questions
Do I have to pay to choose a seat on Allegiant?
All seat assignments are paid. Declining gets a free random assignment at check-in.
Can my child sit with me on Allegiant?
Allegiant seats children 13 and under with an accompanying adult at no cost under DOT rules.
How do I upgrade on Allegiant?
Allegiant Extra can be purchased at booking or check-in where the aircraft is so equipped.
More Allegiant help
Booking Allegiant? Talk to a US travel consultant.
Fare rules, baggage allowances and change policies differ by route and fare brand. Our consultants confirm the exact terms attached to your itinerary before you pay — and handle the change or refund if plans move.