F9 · United States
Frontier Airlines Flights — Book, Change & Cancel
Frontier is a Denver-based ultra-low-cost carrier offering low base fares with optional bundles for bags, seats and flexibility. Whatever you need — a new booking, a date change, a cancellation, a refund or a seat upgrade — our experts handle it by phone, 24/7.
💸 fares from $69 🔁 Changes & cancellations
⬆️ Seat upgrades
⏱️ 24/7 agents
📞
Call for Frontier Airlines help+1 (855) 302-0422
Popular Frontier Airlines routes
Tap a route for details and fares, or call +1 (855) 302-0422 to book any Frontier Airlines flight.
Denver → Cancun
from $219
Denver → Las Vegas
from $149
Denver → Orlando
from $249
Denver → Los Angeles
from $159
Denver → Miami
from $259
Las Vegas → Cancun
from $289
Las Vegas → Orlando
from $269
Las Vegas → Los Angeles
from $69
Las Vegas → Miami
from $299
How to change a Frontier Airlines flight
As a low-cost carrier, Frontier Airlines typically charges a change or cancellation fee that gets smaller the earlier you act — and is often waived when you change far enough in advance. Fares are usually non-refundable unless you add a flexibility option. Frontier uses tiered change/cancellation fees that fall toward zero the earlier you change; many fares are non-refundable unless you add a flexibility bundle.
Fastest way to change: Call +1 (855) 302-0422 with your confirmation code.
Our agents will check your fare rules, find the best new flight, and rebook you in minutes — 24/7.
Cancelling a Frontier Airlines flight & getting a refund
Under U.S. Department of Transportation rules, you can cancel within 24 hours of booking for a full refund if you booked at least 7 days before departure. If Frontier Airlines cancels your flight or makes a major schedule change, you're entitled to a cash refund — not just a credit. Voluntary cancellations of non-refundable fares are typically returned as credit, minus any applicable fee.
For the full breakdown, see our guides on cancelling a flight and getting a refund and the 24-hour cancellation rule — or just call and we'll handle it.
Frontier Airlines seat selection & upgrades
Frontier Airlines charges separately for seat selection, including bigger up-front seats. There's no traditional first class, but you can buy extra legroom, priority boarding and carry-on/checked bags.
Frontier Airlines help & guides
Frontier WiFi & Inflight Entertainment Guide
Frontier Airlines Stretch Seating Upgrade
Flying With a Pet on Frontier Airlines
Frontier Airlines Check-In & Boarding Guide
Frontier Baggage Fees Explained
Frequently asked questions
How do I change my Frontier Airlines flight?
You can change a Frontier Airlines flight online, at the airport, or fastest of all by calling our agents at +1 (855) 302-0422. As a low-cost carrier, Frontier Airlines typically charges a change or cancellation fee that gets smaller the earlier you act — and is often waived when you change far enough in advance. Fares are usually non-refundable unless you add a flexibility option. Frontier uses tiered change/cancellation fees that fall toward zero the earlier you change; many fares are non-refundable unless you add a flexibility bundle. Rules vary by fare and change often — call to confirm yours.
Can I cancel my Frontier Airlines flight and get a refund?
Under U.S. Department of Transportation rules, you can cancel within 24 hours of booking for a full refund if you booked at least 7 days before departure. If Frontier Airlines cancels your flight or makes a major schedule change, you're entitled to a cash refund — not just a credit. Voluntary cancellations of non-refundable fares are typically returned as credit, minus any applicable fee. Not sure which applies to your ticket? Call +1 (855) 302-0422 and we'll check in minutes.
How much does it cost to change a Frontier Airlines flight?
It depends on your fare type and route, and prices change constantly, so we don't quote a flat figure. Expect a tiered fee that shrinks the earlier you change. Call +1 (855) 302-0422 for your exact cost.
Can I upgrade my seat on Frontier Airlines?
Frontier Airlines charges separately for seat selection, including bigger up-front seats. There's no traditional first class, but you can buy extra legroom, priority boarding and carry-on/checked bags. Call +1 (855) 302-0422 and we'll find the best upgrade option for your trip.
FareDeal Expert is an independent travel agency and is not affiliated with, endorsed by, or sponsored by Frontier Airlines. All airline names and trademarks belong to their respective owners. Fares shown are estimates; final pricing and policies are confirmed at booking.