Two deals for Denver flyers to completely different destinations.
- Denver – Fairbanks, Alaska from $229 one-way. 7-day advance purchase required.
- Denver – San Jose, Costa Rica from $273 one-way. 28-day advance purchase required.
Note: Service to Alaska is seasonal and doesn’t resume until May 17. Fares are not good for travel all days, so check with Frontier for details on Fairbanks deals and Costa Rica deals. Or find these deals and even cheaper flights on FareCompare.