Via Free Frequent Flyer Miles, Frontier is offering double miles in September. (Registration required with promo code DBLER.)

You may have signed up recently for Frontier to take advantage of the 1000 mile signup bonus on offer through August 31. (You can no longer just sign up and immediately transfer out just 1000 points into other frequent flyer programs via Points.com, however.)

The Frontier program has basic partnerships… a few car rental companies, several but not comprehensive hotel coverage (though they don’t keep their website updated, they say they partner with goldpoints plus but that program doesn’t exist anymore and has been called Club Carlson since March 31)..

But what do you do with those miles you earn? To some extent Frontier Early Returns members suffer from what regular readers of this blog know that I have coined “the Greyhound Road Rewards problem” (where every ten bus trips earns you… another bus trip!). Frontier doesn’t have any really aspirational award options. There’s no transoceanic travel. They don’t have a luxury redemption of their own. And they no longer have airline partnerships. So if you fly Frontier, you can earn more trips with Frontier. And if that’s not enough to get your juices flowing, you can redeem your points for magazine subscriptions.

Elites though are treated well, not just assigned seats but stretch seating (extra legroom), free directv, and top elites get ‘premium beverages’ free (eg beer, wine, cocktails .. in this way I guess they’re the Intercontinental Royal Ambassador of the skies).

They do what they can with the routes and in-flight product that they offer, which is pretty good. While I do think they need some airline redemption partners to inspire their members and let them use their points beyond Mexico and Costa Rica, I’m always happy with double miles — it’s been awhile since we’ve seen an airline do non-targeted, systemwide double miles. So this is certainly welcome.