Frontier Airlines·None
Frontier Seat Selection & Upgrades
Frontier Seat Selection & Upgrades — Summary
How Frontier 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 on Basic fares.
- Extra legroom: Stretch seating adds several inches of pitch.
- Upgrades: Stretch and UpFront Plus can be bought at booking, check-in or the gate..
- Seating children with a parent: Frontier seats children 13 and under with an accompanying adult at no cost under DOT rules..
Choosing a seat
All seat assignments are paid on Basic fares. Declining a paid seat gets a free random assignment at check-in.
Extra legroom
Stretch seating adds several inches of pitch. UpFront Plus blocks the adjacent middle seat in the first rows, giving a two-across experience.
Upgrades
Stretch and UpFront Plus can be bought at booking, check-in or the gate.
Seating children with a parent
Frontier seats children 13 and under with an accompanying adult at no cost under DOT rules.
Cabins available
Frontier operates: Basic, Economy Bundle, Premium Bundle, Business Bundle.
Frontier seats & upgrades — common questions
Do I have to pay to choose a seat on Frontier?
All seat assignments are paid on Basic fares. Declining a paid seat gets a free random assignment at check-in.
Can my child sit with me on Frontier?
Frontier seats children 13 and under with an accompanying adult at no cost under DOT rules.
How do I upgrade on Frontier?
Stretch and UpFront Plus can be bought at booking, check-in or the gate.
More Frontier help
Booking Frontier? 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.