Frontier Airlines Free Bag & Seat Promotion—Should You Book?
If you’ve been here for a while, you know I almost never talk about Frontier Airlines deals—they don’t have the bests reputation and bags are never included. Well this time, they are! Frontier just launched a limited-time promotion they are calling ‘Divorce your old airline’ (ha ha) where you can book summer flights with a free carry-on bag and free seat selection—a rare deal for this ultra-low-cost airline. They are also saying- “In the coming months, the airline will introduce free, unlimited companion travel”- which right now is an offering exclusive to Southwest.
For families looking to travel this summer without the usual baggage fees, this could be an affordable way to explore. But is it worth it? Let’s break it down.
Frontier’s Free Bag & Seat Promo (Ends March 24!)
Frontier Airlines is offering:
• A free carry-on bag (normally $60+ each way)
• Free seat selection (no surprise fees for picking a seat)
• No change fees (in case your plans shift)
How to Book
• Book by March 24 at 10PM MST
• Travel between now and August 18, 2025
• Select the “Economy” bundle at checkout—it will be $0 extra
Bonus Offer: If you’re flying between May 28 and August 18, you can also get a free checked bag when you use promo code FREEBAG at checkout.
How Cheap Are These Frontier Flights?
While Frontier isn’t always my first choice for family travel, this is a great deal if you want to fly for cheap without paying extra for bags and seats.
Here are some of the best round-trip prices I found from Salt Lake City (SLC) with a carry-on and seat included:
• Las Vegas – $78
• Phoenix – $78
• Seattle – $138
• Los Angeles – $118
• Denver – $97
• San Francisco – $117
• Portland – $128
• Dallas – $177
If you’re booking for a family, these fares can make a big difference in your summer travel budget—especially with the extra baggage savings.
How to Use Points to Book These Flights for Free
While most major bank points don’t transfer directly to Frontier, you can still use Capital One Miles or cards that allow you to erase travel purchases to book these flights for free.
For example, if your family of six wanted to book the $117 round-trip flights to San Francisco, you’d need:
• 70,200 Capital One miles (at 1 cent per mile) to cover all six tickets.
If you don’t have enough points, the fares are low enough that it may make more sense to pay cash—but this is a great way to redeem flexible travel rewards.
Best Credit Cards to Use for Frontier Flights
You can use a Capital One card that allows you to erase travel purchases, such as the Capital One VentureOne Rewards and the Capital One Venture X
(Need a full breakdown of how to maximize Capital One points? This guide will help.
Frontier vs. Southwest: Which Is Better for Families?
Frontier’s promo is appealing, but if you’re looking at long-term travel savings, Southwest is still the better option. Here’s why:
• Southwest points are easier to earn. You can transfer Chase Ultimate Rewards to Southwest at a 1:1 ratio, but most major banks don’t transfer to Frontier.
• The Southwest Companion Pass is unbeatable. With the Companion Pass, your second ticket is free on every flight—just pay taxes and fees. Here’s why the Southwest Companion Pass is the best deal in travel.
• Southwest bags are usually free anyway. Even with Southwest’s recent baggage policy changes, you still get two free checked bags per passenger—year-round, not just during promotions. More on why Southwest is the most valuable airline for earning points.
If your family travels often and wants the best long-term value, Southwest is usually the better choice. But for one-off summer trips at rock-bottom prices, Frontier’s promo is worth considering.
Final Thoughts: Should You Book Frontier’s Free Bag & Seat Deal?
If you’ve been considering a summer trip and want to avoid the usual Frontier baggage fees, this is one of the best deals we’ve seen from them.
Would I book Frontier over Southwest long-term? No. But for a quick family getaway—especially with a free carry-on and seat selection—this promo makes it a budget-friendly way to travel this summer.
Just book fast—this deal expires March 24 at 10PM MST!
