[Expired] Frontier Airlines Extends Free Checked Bags and $39 Summer Fares [Book by April 22]

Low-cost carrier Frontier Airlines is extending its promotion for a free checked bag on flights throughout the late spring and summer travel period, along with rates as low as $39 on a wide range of routes.

But to get this deal, you need to be a Discount Den member. Fortunately, you can get enrollment fees waived right now.

Frontier, like many other low-cost carriers, charges consumers for just about everything, including checked luggage, so taking advantage of this promotion might save you a lot of money.

“We are excited to offer even bigger savings on America’s Greenest Airline,” said Jeff Werkheiser, senior director of brand and customer engagement at Frontier Airlines. “Ultra-low fares and a free checked bag means exceptional value for consumers planning to visit family and friends or enjoy a getaway this spring and summer.”

Let’s look at all of the details of this promotion and how you can benefit!

Frontier Extends Free Checked Baggage When You Book by April 22

Frontier is offering a free checked bag for Discount Den members on flights from April 22 through August 18, 2025, when you book by April 22, 2025, at 11:59 p.m. Eastern Standard Time.

Normally, Discount Den memberships cost $99 ($59.99 + a $40 enrollment fee); however, through April 9, Frontier is waiving the enrollment fee, saving travelers an extra $40.

To take advantage, you must book flights on flyfrontier.com or through Frontier’s mobile app (iOS, Android) and no promo code is needed.

Here are some additional terms and conditions you should be aware of:

• Discount Den members must book by April 22, 2025
• Waived Discount Den enrollment fees are valid April 8 and 9, 2025
• Valid for travel dates between April 22 and August 18, 2025
• There is a limit of 1 checked bag per person per direction
• Size and weight limits still apply

This checked bag offer is available alongside a promotional fare on numerous routes, starting at just $39. Sale fares apply to nonstop travel on Tuesdays and Wednesdays for departures from April 22 to August 18, 2025. The sale also applies to more routes with higher fares for travel on Mondays, Thursdays, and Saturdays. The blackout travel dates are as follows: May 23 and 24; May 26; July 2 and 3; and July 5, 2025.

Best Ways To Book Frontier Flights

As previously stated, tickets must be purchased on Frontier’s website or through its mobile app. When purchasing flights directly from an airline, we recommend using a travel credit card to earn bonus points on airfare.

We recommend cards like the Platinum Card^® from American Express, Citi Strata Premier℠ Card, and Chase Sapphire Reserve^®, all of which offer elevated earnings on flights purchased directly through an airline.

Final Thoughts

If you’ve been planning a trip in the coming months or for summer travel, Frontier’s latest promotional offer to receive a checked bag for free may be precisely what you’re looking for. You can save money on checked bag fees and score a cheap flight as well.

The travel window for the free checked bag is wide, spanning from April 22 to August 18, 2025; nevertheless, the deal has been extended through April 22, 2025, at 11:59 p.m., so book soon!