Which airline flies the most flights to SUX? The top airline carrier flying out of Sioux Gateway is American Airlines and they fly over 181 flights every month.
- American Airlines - Sioux City (SUX) to Seattle (SEA) on 3/6 leaving at 12:50 pm and returning on 3/8 at 10:09 am for only $266 per person.*
- American Airlines - Sioux City (SUX) to Chicago (ORD) on 3/2 leaving at 4:09 am and returning on 3/4 at 10:09 am for only $324 per person.*
- American Airlines - Sioux City (SUX) to Detroit (DTW) on 2/27 leaving at 10:40 am and returning on 3/1 at 10:09 am for only $342 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 02/21/2018 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.