Holidays are not included in this Frontier sale.
What you need to know:
- Book by Monday, Dec. 2
- Travel Jan. 6 to March 5
- Blackout dates: Feb. 13-17
- No Sunday flights included
- Seats are limited for this sale
- Use promo code: CYBER 15
Listen: Airfare expert Rick Seaney has tips for infrequent flyers.