Sioux Gateway Airport / Brigadier General Bud Day Field (SUX) delays & on-time performance
Sioux City, Iowa · 2 nonstop destinations · 1 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SUX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
73%
arrived < 15 min late
Cancelled
2.2%
19 flights
Avg arrival delay
27 min
97 min when late
Departed on time
78%
avg taxi-out 20 min
Figures cover 883 departures from SUX; on-time is measured at arrival. Arrivals into SUX were on time 75% of the time.
Key facts
- Flights departing Sioux Gateway Airport / Brigadier General Bud Day Field (SUX) arrived on time 73% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.2% were cancelled, and 12% arrived an hour or more late.
- Departures scheduled around 11am did best (89% on time); around 6pm did worst (63%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
Most delayed routes from SUX
Lowest on-time arrival rates among regularly flown routes.
- DEN · Denver70%518 flts
- ORD · Chicago78%365 flts
Most reliable routes from SUX
Highest on-time arrival rates among regularly flown routes.
- ORD · Chicago78%365 flts
- DEN · Denver70%518 flts
Best airline at SUX
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| SkyWest Airlines | 73% | 2.2% | 27 min | 2 | 883 |
Best time to fly out of SUX
On-time arrival rate by scheduled departure hour (local time).
- 6am74%134 flts
- 7am76%151 flts
- 8am88%61 flts
- 11am89%73 flts
- 12pm78%114 flts
- 6pm63%311 flts
Monthly trend
Why departures were late
- Airline (crew, maintenance, cleaning, fueling)41%
- Late-arriving aircraft29%
- Air traffic control & airport congestion21%
- Extreme weather8%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.