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ICAO KSUX

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

Sioux Gateway Airport / Brigadier General Bud Day Field handled 6,127 passengers in July 2026, up 29.6% on a year earlier, according to the US BTS.

Official · July 2026 according to the US BTS Full count · domestic + international

Flights (arrivals + departures) over time

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January135178▲ 31.9%
February115168▲ 46.1%
March128178▲ 39.1%
April128160▲ 25.0%
May123169▲ 37.4%
June134155▲ 15.7%
July130158▲ 21.5%
August124––
September126––
October128–in progress
November118––
December126––
Year to date (Jan–Jul)8931,166▲ 30.6%

Passengers over time

Full count · domestic + international
The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January4,8294,866▲ 0.8%
February4,4495,124▲ 15.2%
March5,0176,239▲ 24.4%
April4,9724,860▼ 2.3%
May4,9785,713▲ 14.8%
June5,2285,889▲ 12.6%
July4,7296,127▲ 29.6%
August4,755––
September5,136––
October5,358–in progress
November4,442––
December4,764––
Year to date (Jan–Jul)34,20238,818▲ 13.5%

Seats offered over time

Full count · domestic + international
The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January6,7708,900▲ 31.5%
February5,7508,400▲ 46.1%
March6,4008,900▲ 39.1%
April6,4008,000▲ 25.0%
May6,1308,508▲ 38.8%
June7,1767,808▲ 8.8%
July6,7327,900▲ 17.3%
August6,472––
September6,820––
October6,920–in progress
November6,160––
December7,104––
Year to date (Jan–Jul)45,35858,416▲ 28.8%

Load factor (computed)

Full count · domestic + international

Passengers ÷ seats offered, both as reported by the US BTS for the same months. Computed by us; the two source series are shown on this page.

The most recent periods19 periods
PeriodLoad factor 2025Load factor 2026Change vs last year
January71.3%54.7%▼ 23.3%
February77.4%61.0%▼ 21.2%
March78.4%70.1%▼ 10.6%
April77.7%60.8%▼ 21.8%
May81.2%67.1%▼ 17.3%
June72.9%75.4%▲ 3.5%
July70.2%77.6%▲ 10.4%
August73.5%––
September75.3%––
October77.4%–in progress
November72.1%––
December67.1%––
Year-to-date average (Jan–Jul)75.6%66.7%▼ 11.8%

Seasonality · flights (arrivals + departures) by month

Year JanFebMarAprMayJunJulAugSepOctNovDec
2024 118 120 122 120 124 124 128 131 125 127 121 132
2025 135 115 128 128 123 134 130 124 126 128 118 126
2026 178 168 178 160 169 155 158
Series depth 36 years from 1990

Busiest destinations

Flights recorded between Oct 12, 2024 and Jul 31, 2026, counted from flight records published by the US BTS. Not a current timetable.

Busiest destinations FlightsDistance (km)
Denver International Airport SUX–DEN → 1,620 749
Chicago O'Hare International Airport SUX–ORD → 1,316 700

On-time departures by month

US domestic sectors recorded by BTS

71.3% of 108 timed departures from Sioux Gateway Airport / Brigadier General Bud Day Field left within 15 minutes of schedule in January 2020, according to the US BTS. Cancelled flights are excluded.

The most recent periods11 periods
PeriodOn-time departures 2019On-time departures 2020Change vs last year
January84.0%71.3%▼ 15.1%
February–––
March80.4%––
April87.1%––
May76.3%––
June66.7%––
July68.4%––
August–––
September77.1%––
October80.2%––
November84.4%––
December78.9%––
Year-to-date average (Jan–Jan)84.0%71.3%▼ 15.1%

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay07:00–08:0020.0min · 238 recorded · 231 measured
Gap to highest-delay hour11.0min07:00 ↔ 18:00
Recorded flights1,468Sioux Gateway Airport / Brigadier General Bud Day Field

Departure hour

On-time departures Partial coverage: domestic flights only
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 134 recorded · 131 measured · Source: the US BTS 07:00 · 86.6% · 238 recorded · 231 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 76.5% · 224 recorded · 221 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 73 recorded · 73 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 114 recorded · 111 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 163 recorded · 161 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS 18:00 · 63.1% · 382 recorded · 369 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 134 recorded · 131 measured · Source: the US BTS 07:00 · 20.0 min · 238 recorded · 231 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 21.0 min · 224 recorded · 221 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 73 recorded · 73 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 114 recorded · 111 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 21 recorded · 21 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 163 recorded · 161 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS 18:00 · 31.1 min · 382 recorded · 369 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 134 · 134 recorded · 131 measured · Source: the US BTS 07:00 · 238 · 238 recorded · 231 measured · Source: the US BTS 08:00 · 61 · 61 recorded · 61 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 224 · 224 recorded · 221 measured · Source: the US BTS 11:00 · 73 · 73 recorded · 73 measured · Source: the US BTS 12:00 · 114 · 114 recorded · 111 measured · Source: the US BTS 13:00 · 21 · 21 recorded · 21 measured · Source: the US BTS 14:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 15:00 · 163 · 163 recorded · 161 measured · Source: the US BTS 16:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 17:00 · 58 · 58 recorded · 58 measured · Source: the US BTS 18:00 · 382 · 382 recorded · 369 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00No observations———
06:00Fewer than 200 measured departures—131134
07:0086.6%20.0 min231238
08:00Fewer than 200 measured departures—6161
09:00No observations———
10:0076.5%21.0 min221224
11:00Fewer than 200 measured departures—7373
12:00Fewer than 200 measured departures—111114
13:00Fewer than 200 measured departures—2121
14:00No observations———
15:00Fewer than 200 measured departures—161163
16:00No observations———
17:00Fewer than 200 measured departures—5858
18:0063.1%31.1 min369382
19:00No observations———
20:00No observations———
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: domestic flights only
Monday · 68.7% · 217 recorded · 214 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 201 recorded · 199 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 199 recorded · 196 measured · Source: the US BTS Thursday · 79.0% · 216 recorded · 214 measured · Source: the US BTS Friday · 74.5% · 218 recorded · 208 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 200 recorded · 192 measured · Source: the US BTS Sunday · 78.0% · 217 recorded · 214 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: domestic flights only
Monday · 30.8 min · 217 recorded · 214 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 201 recorded · 199 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 199 recorded · 196 measured · Source: the US BTS Thursday · 16.6 min · 216 recorded · 214 measured · Source: the US BTS Friday · 26.7 min · 218 recorded · 208 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 200 recorded · 192 measured · Source: the US BTS Sunday · 22.0 min · 217 recorded · 214 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: domestic flights only
Monday · 217 · 217 recorded · 214 measured · Source: the US BTS Tuesday · 201 · 201 recorded · 199 measured · Source: the US BTS Wednesday · 199 · 199 recorded · 196 measured · Source: the US BTS Thursday · 216 · 216 recorded · 214 measured · Source: the US BTS Friday · 218 · 218 recorded · 208 measured · Source: the US BTS Saturday · 200 · 200 recorded · 192 measured · Source: the US BTS Sunday · 217 · 217 recorded · 214 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday68.7%30.8 min214217
TuesdayFewer than 200 measured departures—199201
WednesdayFewer than 200 measured departures—196199
Thursday79.0%16.6 min214216
Friday74.5%26.7 min208218
SaturdayFewer than 200 measured departures—192200
Sunday78.0%22.0 min214217

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: domestic flights only
Jan · 150 · 150 recorded · 148 measured · Source: the US BTS Feb · 139 · 139 recorded · 139 measured · Source: the US BTS Mar · 155 · 155 recorded · 147 measured · Source: the US BTS Apr · 137 · 137 recorded · 135 measured · Source: the US BTS May · 142 · 142 recorded · 139 measured · Source: the US BTS Jun · 137 · 137 recorded · 137 measured · Source: the US BTS Jul · 142 · 142 recorded · 137 measured · Source: the US BTS Aug · 62 · 62 recorded · 60 measured · Source: the US BTS Sep · 60 · 60 recorded · 60 measured · Source: the US BTS Oct · 102 · 102 recorded · 102 measured · Source: the US BTS Nov · 118 · 118 recorded · 115 measured · Source: the US BTS Dec · 124 · 124 recorded · 118 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—148150
FebFewer than 200 measured departures—139139
MarFewer than 200 measured departures—147155
AprFewer than 200 measured departures—135137
MayFewer than 200 measured departures—139142
JunFewer than 200 measured departures—137137
JulFewer than 200 measured departures—137142
AugFewer than 200 measured departures—6062
SepFewer than 200 measured departures—6060
OctFewer than 200 measured departures—102102
NovFewer than 200 measured departures—115118
DecFewer than 200 measured departures—118124

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 75.5% 1,108
  • Delayed >15 min 22.4% 329
  • Cancelled 2.1% 31
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Environment

Air pollutants at the airport (EPA estimate)

Modelled estimate, not a measurement: aircraft below 3,000 ft (landing and take-off), ground support equipment and auxiliary power units, plus any stationary sources the state reported at the airport site. Cruise emissions are not included.

In 2023, the US EPA estimated 21.4 tonnes of nitrogen oxides (NOₓ) and 2.3 tonnes of fine particles (PM2.5) from activity at Sioux Gateway Airport / Brigadier General Bud Day Field, according to the EPA National Emissions Inventory.

PollutantUnit201720202023
NOₓ (Nitrogen oxides)tonnes18.326.121.4
CO (Carbon monoxide)tonnes68.855.080.1
SO₂ (Sulphur dioxide)tonnes2.12.62.3
VOC (Volatile organic compounds)tonnes10.114.711.8
PM2.5 (Fine particles)tonnes1.81.92.3
PM10 (Particulate matter)tonnes2.02.02.6
Leadkg33.418.048.9
CO₂ (Carbon dioxide)tonnes1,2944,508—

The inventory is published every three years. Coverage changes between editions (about 19,300 airport sites in 2017, 6,000 in 2020, 12,700 in 2023), 2020 reflects the pandemic drop in traffic, and EPA updates its aircraft model between editions — so the columns are not a trend (Los Angeles: 3,562 tonnes of NOₓ in 2017, 8,810 in 2023). CO₂ is only reported for some sites in 2017, for all sites in 2020, and not at all in 2023. EPA publishes US customary units; converted here to metric tonnes (× 0.907) and, for lead, kilograms.

US EPA — National Emissions Inventory

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