Buy Frontier Airlines tickets
United StatesPopular flights from Denver
Cheapest fares from this airport found by travellers in the last 48 hours. Prices are for one adult, one way, and may have changed.
Frontier Airlines tickets are sold directly through the airline's website at www.frontierairlines.com and via the Frontier mobile app, as well as through major online travel agencies and traditional travel agents.
The airline operates on an unbundled pricing model, meaning base fares are kept low, but many services carry separate charges. Standard bags, seat selection, checked baggage, and carry-on allowances are priced individually depending on your booking and fare type. While specific fare family names are not publicly detailed in the airline's documentation, expect charges for carry-on bags ($60–99+) and checked bags (from $39 at booking).
Practical tips:
- Book early and directly with Frontier to access the lowest base fares and avoid third-party booking fees
- Purchase baggage allowance and other add-ons during check-out if you know you'll need them; prices may be higher if purchased later
- Download the Frontier mobile app for easy access to your booking, check-in, and baggage management
- Review the route-specific baggage pricing before finalizing your purchase, as costs vary by destination