Sioux City (SUX) to Denver (DEN) flights
SkyWest Airlines flies nonstop from Sioux Gateway Airport / Brigadier General Bud Day Field to Denver International Airport, with about 11 flights a week in July 2026. The 466-mile flight takes about 1h 52m gate to gate.
- Distance
- 466 mi · 750 km
- Flight time
- 1h 52m
- Airlines
- 1
- Seats filled
- 65%
Airlines flying SUX to DEN
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 11 | Bombardier CRJ200, Bombardier CRJ550 | 16,389 | 1h 52m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SUX to DEN flight schedule
4 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 11:30am and the last at 6:43pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 5042United Airlines · operated by SkyWest Airlines | 11:30am | 12:24pm | 21 | 81% |
| UA 5114United Airlines · operated by SkyWest Airlines | 11:32am | 12:26pm | 10 | 87% |
| UA 5021United Airlines · operated by SkyWest Airlines | 6:35pm | 7:29pm | 6 | 46% |
| UA 5083United Airlines · operated by SkyWest Airlines | 6:43pm | 7:37pm | 12 | 27% |
Is SUX to DEN on time?
From September 2025 to August 2026, 71% of 536 flights arrived within 15 minutes of schedule and 2.2% were cancelled. Flights leaving around 11am were the most punctual (87%), those around 6pm the least (63%). Most delay time was caused by late-arriving aircraft (39%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 536 | 71% | 30 min | 2.2% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 134 | 74% | |
| 11am to 12pm | 104 | 87% | |
| 6pm to 7pm | 298 | 63% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 29 | 876 | |
| September 2025 | 30 | 909 | |
| October 2025 | 31 | 1,007 | |
| November 2025 | 29 | 951 | |
| December 2025 | 30 | 952 | |
| January 2026 | 56 | 1,431 | |
| February 2026 | 55 | 1,641 | |
| March 2026 | 59 | 1,928 | |
| April 2026 | 46 | 1,383 | |
| May 2026 | 49 | 1,611 | |
| June 2026 | 47 | 1,785 | |
| July 2026 | 47 | 1,915 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.