Sioux Gateway Airport / Brigadier General Bud Day Field (SUX): Delays & On-Time Performance
Data through May 2026
Sioux Gateway Airport / Brigadier General Bud Day Field (SUX) in Sioux City, IA is a middle-of-the-pack performer: 77% of departures are on time, within a few points of the national 78%. It hosts 1 airlines flying 2 departures a day to 2 destinations, with cancellations at 1.8%.
- Departures on-time
- 77%
- left <15 min late
- Avg dep delay
- 28 min
- Arrivals on-time
- 71%
- Cancelled
- 1.8%
- Destinations
- 2
- nonstop
- Airlines
- 1
Monthly on-time trend
Best time of day to depart from SUX
Busiest routes from SUX
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| SUX → DEN | 483 | 67% | 34 min |
| SUX → ORD | 365 | 75% | 28 min |
Frequently asked questions
- How often are flights delayed at SUX?
- 23% of departures from Sioux Gateway Airport / Brigadier General Bud Day Field left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 28 minutes. The national on-time average over the same period was 78%.
- What is the best time of day to depart from SUX?
- Flights scheduled around 7 a.m. depart on time 87% of the time at SUX, versus 63% around 6 p.m.. Booking before noon is the usual rule of thumb here.
- How often are flights cancelled at SUX?
- 1.8% of scheduled departures from SUX were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Based on 1,577 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.