Which airline flies the most flights to BOI? The top airline carrier flying out of Boise ID is Alaska Airlines and they fly over 1,327 flights every month.
- Frontier Airlines - Boise (BOI) to Denver (DEN) on 5/30 leaving at 7:43 pm and returning on 6/1 at 6:53 pm for only $88 per person.*
- Delta - Boise (BOI) to Seattle (SEA) on 6/13 leaving at 6:15 pm and returning on 6/15 at 10:23 pm for only $124 per person.*
- Delta - Boise (BOI) to Las Vegas (LAS) on 5/29 leaving at 2:20 pm and returning on 6/1 at 8:26 pm for only $193 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 05/19/2018 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.