Buy Frontier Miles With 150% Bonus: Best-Ever Deal Ends March 6

⚠️ EXPIRED: This promotion ended March 6, 2026. Frontier typically runs buy-miles bonuses every few months — watch for future 100%+ promos.

Key Takeaways

EXPIRED: This 150% bonus ended March 6, 2026
Frontier occasionally runs 100-150% bonuses — worth watching for
Miles expire after 12 months of inactivity
Sweet spot: 1 cent per mile or less is a good buy

This promotion has ended. Frontier Airlines offered its best-ever buy miles promotion — a 150% bonus — through March 6, 2026. If you’ve ever considered padding your Frontier Miles balance for future flights, this is the time.

The Deal at a Glance

Bonus: Up to 150% extra miles on purchased miles
Effective price: ~1 cent per mile (with max bonus)
Normal price: 2.5 cents per mile (without bonus)
Deadline: March 6, 2026
Link: Buy Frontier Miles

Why This Matters

Frontier miles are typically valued at 1.3 cents each according to most industry valuations. That means:

Without bonus: 2.5 cents/mile = 92% markup over value (terrible deal)
With 150% bonus: ~1 cent/mile = 23% below value (great deal)

Put another way: you’re getting miles worth $1.30 for every $1 you spend. That’s a 30% instant return on your purchase.

The Math in Action

Here’s how the bonus works with a sample purchase:

Purchase Amount	Base Miles	150% Bonus	Total Miles	Cost Per Mile
$500	20,000	30,000	50,000	1.0¢
$1,000	40,000	60,000	100,000	1.0¢
$2,500	100,000	150,000	250,000	1.0¢

Who Should Buy?

This deal makes sense if you:

Travelers With Planned Trips

Have a specific redemption in mind — Frontier Value awards start at just 10,000 miles one-way. If you know where you’re going, buying makes sense.

Regular Frontier Flyers

Fly Frontier semi-regularly — Stacking purchased miles with earned miles can get you free flights faster. Check your existing balance first.

Last-Minute Travelers

Want to avoid cash fares — Last-minute Frontier fares can spike; having miles in reserve is insurance against price gouging.

Who Should Skip?

Don’t buy “just in case” — Frontier miles expire after 12 months of account inactivity, so speculative buying is risky unless you’re confident you’ll use them.

Also skip if you prefer transferable points from Chase, Amex, or Bilt — those give you more flexibility across dozens of airlines. Learn how these work in our transfer partners guide. Not sure what your points are worth? Check our points valuation guide.

Redemption Sweet Spots

To make your purchased miles stretch:

Value Awards: Start at 10,000 miles one-way (off-peak/low-demand routes)
Standard Awards: 20,000 miles one-way (more availability)
Last Seat Awards: Only for elites, but guarantees availability at 22,500 miles

Best routes tend to be:

Denver to leisure destinations (Vegas, Cancun, Florida)
Midwest hub cities to warm-weather destinations
Off-peak travel (Tuesdays, Wednesdays, January/February)

Pro Tips

Stack with the FREE 5,000 miles promo — If you haven’t grabbed the Big Redemption offer yet, do that first for 5,000 free miles
Check cash prices first — Sometimes Frontier’s ultra-low fares beat using miles, especially with sales
Use a card with bonus categories — The purchase goes through Points.com, which typically codes as travel. Chase Sapphire Reserve earns 3x on travel.

The Bottom Line

A 150% bonus is the highest we’ve ever seen from Frontier. At ~1 cent per mile against a 1.3 cent valuation, the math works — but only if you have concrete plans to use the miles within the next year.

If you’re a Frontier flyer who wants to guarantee cheap getaways, this is one of the best opportunities to lock in value. Just don’t overbuy.

Deal expires: March 6, 2026

Have questions about maximizing Frontier miles or whether this deal makes sense for you? Drop a comment below.

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