# Sioux Gateway Airport / Brigadier General Bud Day Field (SUX / KSUX)

**Sioux Gateway Airport / Brigadier General Bud Day Field** (IATA: SUX, ICAO: KSUX) is a medium airport in Sioux City, Iowa, United States. It opened in 1942. It has 2 runways; the longest is 9,002 ft (2,744 m). In 2025 it handled 59 thousand passengers.

Web page: https://dromopedia.com/airports/ksux

## At a glance

- IATA / ICAO: SUX / KSUX
- FAA: SUX
- Type: Medium airport
- Serves: Sioux City, Iowa, United States
- Opened: 1942
- Elevation: 1,099 ft / 335 m
- Coordinates: 42.3976, -96.3822
- Runways: 2
- Longest runway: 9,002 ft / 2,744 m
- Instrument procedures: 6 approaches
- Passengers: 58,657 (2025)
- Time zone: UTC-6/-5 · America/Chicago
- Website: https://flysux.com
- Wikipedia: https://en.wikipedia.org/wiki/Sioux_Gateway_Airport (12 languages)
- Wikidata: https://www.wikidata.org/wiki/Q2875926
- Weather station: KSUX · WMO 72557
- Ident: KSUX

## Timeline

- 1942: Sioux Gateway Airport / Brigadier General Bud Day Field opens.
- 19 Jul 1989: Aviation accident.
- 19 Jul 1989: United Airlines Flight 232. 111 killed.

## Runways

| Ident | Length | Width | Surface | True headings | Lighted |
| --- | --- | --- | --- | --- | --- |
| 13/31 | 9,002 ft / 2,744 m | 150 ft / 46 m | Concrete | 136° / 316° | yes |
| 18/36 | 6,401 ft / 1,951 m | 100 ft / 31 m | Asphalt | 181° / 001° | yes |

- FAA airport diagram: https://aeronav.faa.gov/d-tpp/2611/00395AD.PDF

## Passengers per year

| Year | Passengers | Source |
| --- | --- | --- |
| 2012 | 53,918 | Wikidata |
| 2015 | 53,183 | BTS T-100 Segment |
| 2016 | 72,959 | BTS T-100 Segment |
| 2017 | 83,808 | BTS T-100 Segment |
| 2018 | 89,517 | BTS T-100 Segment |
| 2019 | 95,057 | BTS T-100 Segment |
| 2020 | 34,446 | BTS T-100 Segment |
| 2021 | 63,443 | BTS T-100 Segment |
| 2022 | 51,592 | BTS T-100 Segment |
| 2023 | 54,092 | BTS T-100 Segment |
| 2024 | 57,479 | BTS T-100 Segment |
| 2025 | 58,657 | BTS T-100 Segment |

## Routes

2 destinations in 1 country. From the airport's Wikipedia article.

### Year-round (2)

- [ORD](https://dromopedia.com/airports/kord.md) Chicago O'Hare International Airport · United States · 435 mi / 700 km · United Express
- [DEN](https://dromopedia.com/airports/kden.md) Denver International Airport · United States · 465 mi / 749 km · United Express

## Airlines

The figure is how many destinations each airline flies from SUX, as the routes above have them. Hubs from Wikidata.

### Passenger (1)

- UA [United Express](https://dromopedia.com/airlines/united-express) · 2

## Rankings

Ranked among 48,075 open airports; = marks a shared place.

| Measure | Value | World | Region | Country |
| --- | --- | --- | --- | --- |
| Passengers | 59K (2025) | #2,026 of 3,974 | #466 in North America | #314 in US |
| Longest runway | 9,002 ft / 2,744 m | =1,785 of 29,858 | =374 in North America | =275 in US |
| Elevation | 1,099 ft / 335 m | =16,295 of 43,403 | =7,168 in North America | =5,674 in US |
| Age | Opened 1942 | =1,791 of 15,079 | =924 in North America | =885 in US |
| Runways | 2 | =715 of 29,978 | =435 in North America | =391 in US |

## Radio frequencies

| Type | Description | MHz |
| --- | --- | --- |
| A/D | SIOUX CITY APP/DEP | 124.600 |
| ATIS | ATIS | 119.450 |
| CTAF | CTAF | 118.700 |
| GND | GND | 121.900 |
| OPS | ANG COMD POST | 37.310 |
| RDO | FORT DODGE RDO | 122.450 |
| TWR | SIOUX CITY TWR | 118.700 |
| UNIC | UNICOM | 122.950 |

## Nearby airports

- [OFK](https://dromopedia.com/airports/kofk.md) Karl Stefan Memorial Airport · 61 mi / 98 km
- [YKN](https://dromopedia.com/airports/kykn.md) Chan Gurney Municipal Airport · 62 mi / 100 km
- [OMA](https://dromopedia.com/airports/koma.md) Eppley Airfield · 80 mi / 128 km
- [OLU](https://dromopedia.com/airports/kolu.md) Columbus Municipal Airport · 82 mi / 132 km
- [FSD](https://dromopedia.com/airports/kfsd.md) Sioux Falls Regional Airport · 84 mi / 135 km
- [OFF](https://dromopedia.com/airports/koff.md) Offutt Air Force Base · 92 mi / 147 km

## Sources

- [BTS T-100 Segment](https://www.transtats.bts.gov/Tables.asp?QO_VQ=EEE&QO_anzr=Nv4%20Pn44vr45): US traffic: Bureau of Transportation Statistics, T-100 Segment (Public Domain (US Government))
- [FAA NASR](https://www.faa.gov/air_traffic/flight_info/aeronav/aero_data/NASR_Subscription/): US airport data: FAA National Airspace System Resources (Public Domain (US Government))
- [NOAA Aviation Weather Center](https://aviationweather.gov/data/api/): Weather data: NOAA Aviation Weather Center (Public Domain (US Government))
- [OurAirports](https://ourairports.com/data/): Airport data from OurAirports (Public Domain)
- [Wikidata](https://www.wikidata.org): Structured data from Wikidata (CC0 1.0)
- [Wikipedia: “Sioux Gateway Airport”](https://en.wikipedia.org/w/index.php?title=Sioux_Gateway_Airport&oldid=1376526926), revision of 24 Sep 2026 (CC BY-SA 4.0)
- [timezone-boundary-builder](https://github.com/evansiroky/timezone-boundary-builder): Time zone boundaries © OpenStreetMap contributors, timezone-boundary-builder (ODbL 1.0)
- Every figure with its source: https://dromopedia.com/airports/ksux/data