Which airline flies the most flights to COS? The top airline carrier flying out of Colorado Springs CO is American Airlines and they fly over 504 flights every month.
- Frontier Airlines - Colorado Springs (COS) to Las Vegas (LAS) on 4/25 leaving at 5:59 pm and returning on 4/26 at 11:04 am for only $98 per person.*
- Frontier Airlines - Colorado Springs (COS) to Seattle (SEA) on 5/1 leaving at 12:41 pm and returning on 5/4 at 7:33 pm for only $101 per person.*
- Frontier Airlines - Colorado Springs (COS) to Atlanta (ATL) on 5/1 leaving at 9:21 am and returning on 5/3 at 4:15 pm for only $136 per person.*
*Prices vary and will be updated when you view current flight availability results. Deals displayed here are based on flight pricing and availability as of 04/21/2018 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.