Book with Aviafares
Aviafares brings you some of the best Frontier Airlines fares we're seeing right now. These are our latest lead-in prices, pulled from the same booking system our US agents work. Don't keep waiting. Book them before they move.
Tue, Jul 14 - Tue, Jul 21
Alliance to Chadron
From
$276.99
Tue, May 26 - Mon, Jun 08
Alamosa to Denver
From
$295.99
Wed, May 20 - Mon, Jun 01
Alamosa to Farmington
From
$665.99
Thu, Jun 04 - Sat, Jun 13
Atlanta to Denver
From
$760.99
Tue, Jun 23 - Thu, Jul 02
Atlanta to Trenton
From
$401.99
Wed, Jun 17 - Tue, Jun 30
Watertown to Pierre
From
$793.99
Sun, Jun 28 - Fri, Jul 10
Austin to Denver
From
$558.99
Sun, May 24 - Sat, Jun 06
Bismarck to Denver
From
$427.99
Indicative fares based on historical lead-in pricing for Frontier Airlines routes; live search above returns today's bookable offers.
Need help booking a Frontier Airlines fare? Talk to a US agent.
Unpublished consolidator rates on premium cabins, 24/7.
Frontier Airlines (IATA: F9, ICAO: FFT) is a United States-based carrier operating 220 scheduled routes to 81 cities across 5 countries. Its largest hub is Denver International Airport (DEN) in Denver, with additional bases at Trenton Mercer Airport (TTN).
You can book Frontier Airlines tickets through Aviafares at the same published fares you'd see on the airline's own site, and our US booking team also has access to unpublished consolidator rates on premium cabins. If you need help with a complex itinerary, a schedule change, or just want a second opinion on the best routing, call our 24/7 line.
ATC callsign: FRONTIER FLIGHT. Flight numbers are prefixed with F9.
Frontier Airlines serves 81 destinations through 83 origin airports in our booking system. That breadth makes it straightforward to find Frontier Airlines deals to most major metros worldwide, whether you need a same-day domestic connection or a multi-stop international itinerary. Primary bases sit at Denver International Airport (DEN), Trenton Mercer Airport (TTN), New Castle Airport (ILG).
Changes, cancellations, schedule irregularities, and refunds on your Frontier Airlines ticket are all handled by our US-based booking team around the clock. If a flight gets cancelled or rescheduled, we rebook you on the next available option at the airline's published fees (or, for US-touching cancellations, file for the full refund you're entitled to under DOT rules). Call the number at the top of this page or request a callback. Operational specifics, cabins, baggage, check-in, miles, and fare rules, are summarised in the quick-reference grid below.
Route network
Airline information
Frontier Airlines operates the standard long-haul cabin tiers found on most major carriers: economy, premium economy (on wide-body routes), business, and first (on select flagship services). For the exact cabin layout of your specific flight, the fare detail at checkout shows seat map and amenity info. For a primer on what each class actually includes, see our premium cabin guide.
Carry-on and checked baggage allowances depend on your fare class and itinerary. Basic economy fares on most US carriers are the most restrictive; premium cabins usually include two checked bags of higher weight. The specifics for your ticket appear in your Aviafares confirmation email. Our baggage policy guide covers typical limits and fees across carriers.
Online check-in typically opens 24 hours before departure on Frontier Airlines's own website or app using your booking reference (PNR) and last name. Arrive at the airport 90 minutes before a domestic flight and 2-3 hours before an international flight. Priority boarding is included with premium cabin fares and tier status.
Refund and change rules are set per fare class by the airline. The US Department of Transportation requires a full refund for any US-touching flight cancellation on any fare. For voluntary changes, our agents can handle the rebook at the airline's published fees. See our fare rules primer and refund policy.
Tickets issued through Aviafares are standard revenue tickets. You earn Frontier Airlines miles (and partner- program credit where applicable) at the same rate as booking on the airline's own site. Add your frequent-flyer number at checkout, or email us after booking to have it added to the PNR.
Changes, cancellations, or irregular-operations rebooks on your Frontier Airlines ticket can be handled directly by our booking team: call 24/7 or request a callback. For detail on how we handle each scenario, see booking support.
Primary origin airports in Frontier Airlines's network, ranked by outbound route count.
Denver International Airport
Denver, United States
65
routes
Trenton Mercer Airport
Trenton, United States
14
routes
New Castle Airport
Wilmington, United States
6
routes
Cancún International Airport
Cancun, Mexico
6
routes
Orlando International Airport
Orlando, United States
5
routes
Punta Cana International Airport
Punta Cana, Dominican Republic
5
routes
More carriers our US agents book every day, including others from United States.
Our 24/7 US booking team knows fare rules, change policies, and unpublished consolidator rates for Frontier Airlines cold. One call gets you a real answer.