There are few travel wins quite as satisfying as booking a flight for less than dinner out—and Frontier has built a loyal following around exactly that. Since first taking off in 1994, the Denver-based airline has grown into one of the country’s largest ultra-low-cost carriers, flying to destinations across the US, Mexico, the Caribbean, and Central America. I’ve flown Frontier myself more than once when I’ve needed a quick affordable escape or last-minute ticket, and the airline has come through every time. The trick to doing it right, though, is knowing where to find the extra flight savings before you hit book.
And that’s where we come in: From Frontier discount codes and limited-time promotions to bundle offers and membership perks that can shave even more off your fare, these are the deals worth keeping on your radar. You already know that the money you save on getting there is certainly better spent lingering over a long alfresco lunch abroad, booking that sunrise tour you’ve been eyeing, or simply saying “yes” to one more trip this year. So start here, and read on for the latest Frontier promo codes and discounts, from timely sales to savvy hacks specific to the site.
Frontier Airlines flights from $19 without a promo code
You don’t always need a promo code to score a good bargain. Frontier regularly rolls out one-way fares starting at $19 on select routes and travel dates, making it one of the simplest ways to book an affordable getaway, if your schedule is a bit more flexible. These limited-time fares are ideal for everything from spontaneous weekends away to quick city breaks, and if your itinerary qualifies, you may be able to stack an eligible Frontier promo code or other available offers for even more savings.
As always with Frontier’s low cost fares, availability is limited, and extras like bags and seat selection are priced separately—so it’s worth checking the total cost before you book. This offer is available through the end of 2026.
Kids fly free with Frontier Airlines
Traveling with little ones can make flight costs add up fast, which is why Frontier’s Kids Fly Free perk is one of the airline’s most valuable offers for families. Through an active Discount Den membership, one child (under the age of 15) can fly free with each eligible adult fare on select domestic round-trip flights within the continental US. The offer must be booked directly through Frontier and isn’t available on every route or departure, but with a little flexibility, it can make family vacations, long weekends, and school-break trips considerably more affordable.
Save $30 when signing up for Frontier’s Discount Den membership
If you fly Frontier more than once or are planning to travel with a group, a Discount Den membership can quickly pay for itself. For a limited time, new members can save $30 on the standard enrollment fee, bringing the cost down from $50 while still unlocking access to members-only fares. Better yet? Those discounted prices can be extended to as many as six people traveling on the same reservation, making it an especially worthwhile option for group trips. If Frontier is already on your radar for upcoming travel, this is one of the easiest ways to lower the cost of future bookings before you even search for a flight.
Earn up to 20 times the miles on flight purchases with Frontier’s Miles program
Some of the best flight savings add up with every trip you take, especially when booking with Frontier’s Miles program. Frontier Miles is free to join and rewards members with 10 miles per dollar spent on eligible Frontier purchases, while Elite Status members can earn up to 20 miles per dollar. Those miles can be redeemed toward future flights booked through Frontier, making it an easy way to chip away at the cost of your next escape. Whether you’re a frequent flyer or simply reach for Frontier when an affordable fare pops up, it’s a low-effort sign-up that seamlessly pays off over time.