Frontier Airlines Flash Sale 90% off Dec 13 only

Frontier Airlines has a flash sale today Dec 13 for 90% off select routes.

Use promo code: Save90.

*Buy by: 12/13/17.

Fly Jan. 9, 10, 16, 17, 18, 20, 22, 23, 24, 25, 30, 31 2018;

Feb. 1, 6, 2018.

More about this offer.

Frotnier 90% off flash sale

About Ric Garrido

Ric Garrido of Monterey, California started Loyalty Traveler in 2006 for traveler education on hotel and air travel, primarily using frequent flyer and frequent guest loyalty programs for bargain travel. Loyalty Traveler joined in 2008.

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  1. “Sorry! The promo code that you entered is not valid for your current search. Promo codes often are restricted to certain days of the week and on specific routes. Please check the details of the promo code and adjust your search accordingly.”

    Found this on 2 out of 3 flights I tried….even though the routes were not listed as “excluded”. Was worth a try, though.

  2. Follow up : to try to make it work for you, you can try breaking your journey into individual flight segments. Turns out that most have to be routed through Denver but Frontier will give you the error message above if the layover is longer than it thinks is ok. This is what appears to be happening for my test cases.

    BTW, connecting through Denver (from Portland) with Frontier seems to be ridiculous. No wonder I’ve never flown Frontier!

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