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Sioux Gateway/Brig General Bud Day Field (SUX) had nonstop service to 2 destinations on 1 airline in our June 14, 2026 departure snapshot. The busiest route was to Denver (DEN), and the largest operator here was United Airlines with nonstops to 2 destinations.
Route data as of June 14, 2026, based on a 7-day departures sample. Routes may have changed since this snapshot.
You can fly nonstop from SUX to 2 destinations. Current schedules show about 2.7 flights per day across those routes. The busiest options start with Denver (DEN), Chicago (ORD).
0 international routes in this schedule set
United States 2
1-2/day
Bombardier CRJ
Ranked by destinations served, then daily frequency.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
Sioux Gateway/Brig General Bud Day Field (SUX / KSUX) is located in Sioux City, United States.
The IATA code is SUX. The ICAO code is KSUX.
The busiest scheduled route from SUX in our June 14, 2026 departure data was SUX to DEN (Denver), with 1-2/day.
United Airlines was the largest operator in our SUX schedule data, serving 2 destinations with 2-3/day.
SUX has 0 international routes and 2 domestic routes in the current schedule set.
1 airlines operated at SUX in our June 14, 2026 snapshot. Top carriers include United Airlines.
SUX has direct flights to 2 destinations including Denver, Chicago.
View live arrivals and departures at SUX on FlightRadar24.
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