ICAO KGCC

Gillette Northeast Wyoming (GCC)

Northeast Wyoming Regional Airport handled 5,778 passengers in July 2026, up 13.8% on a year earlier, according to the US BTS.

Flights (arrivals + departures) over time

The most recent periods19 periods
PeriodFlights (arrivals + departures) 2025Flights (arrivals + departures) 2026Change vs last year
January122124▲ 1.6%
February108112▲ 3.7%
March124171▲ 37.9%
April12830▼ 76.6%
May13865▼ 52.9%
June134178▲ 32.8%
July128159▲ 24.2%
August128––
September122––
October130–in progress
November120––
December124––
Year to date (Jan–Jul)882839▼ 4.9%

Passengers over time

Full count · domestic + international
The most recent periods19 periods
PeriodPassengers 2025Passengers 2026Change vs last year
January4,7474,783▲ 0.8%
February4,2944,364▲ 1.6%
March5,3775,763▲ 7.2%
April5,083522▼ 89.7%
May5,2801,797▼ 66.0%
June5,0606,038▲ 19.3%
July5,0765,778▲ 13.8%
August5,017––
September4,999––
October5,271–in progress
November4,842––
December5,130––
Year to date (Jan–Jul)34,91729,045▼ 16.8%

Seats offered over time

Full count · domestic + international
The most recent periods19 periods
PeriodSeats offered 2025Seats offered 2026Change vs last year
January6,1006,200▲ 1.6%
February5,4005,600▲ 3.7%
March6,2008,550▲ 37.9%
April6,4001,500▼ 76.6%
May6,9003,250▼ 52.9%
June6,7008,900▲ 32.8%
July6,4007,950▲ 24.2%
August6,400––
September6,100––
October6,500–in progress
November6,000––
December6,200––
Year to date (Jan–Jul)44,10041,950▼ 4.9%

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
January77.8%77.1%▼ 0.9%
February79.5%77.9%▼ 2.0%
March86.7%67.4%▼ 22.3%
April79.4%34.8%▼ 56.2%
May76.5%55.3%▼ 27.7%
June75.5%67.8%▼ 10.2%
July79.3%72.7%▼ 8.4%
August78.4%––
September82.0%––
October81.1%–in progress
November80.7%––
December82.7%––
Year-to-date average (Jan–Jul)79.3%64.7%▼ 18.3%

Seasonality · flights (arrivals + departures) by month

Year JanFebMarAprMayJunJulAugSepOctNovDec
2024 120 118 120 120 128 124 128 134 122 122 118 128
2025 122 108 124 128 138 134 128 128 122 130 120 124
2026 124 112 171 30 65 178 159
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 GCC–DEN → 2,622 504

On-time departures by month

US domestic sectors recorded by BTS

84.8% of 118 timed departures from Northeast Wyoming Regional Airport left within 15 minutes of schedule in January 2015, according to the US BTS. Cancelled flights are excluded.

The most recent periods13 periods
PeriodOn-time departures 2014On-time departures 2015Change vs last year
January80.7%84.8%▲ 5.1%
February87.7%––
March88.1%––
April94.8%––
May91.7%––
June91.5%––
July93.6%––
August91.8%––
September92.4%––
October97.5%––
November79.3%––
December77.7%––
Year-to-date average (Jan–Jan)80.7%84.8%▲ 5.1%

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 delay05:00–06:0020.8min · 450 recorded · 442 measured
Gap to highest-delay hour4.8min05:00 ↔ 14:00
Recorded flights1,311Northeast Wyoming Regional Airport

Departure hour

On-time departures Partial coverage: domestic flights only

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

Average departure delay Partial coverage: domestic flights only

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

Recorded flights Partial coverage: domestic flights only

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———
05:0087.1%20.8 min442450
06:00No observations———
07:00Fewer than 200 measured departures—153153
08:00Fewer than 200 measured departures—11
09:00No observations———
10:00Fewer than 200 measured departures—6565
11:00No observations———
12:00No observations———
13:00Fewer than 200 measured departures—151153
14:0077.5%25.6 min449457
15:00No observations———
16:00No observations———
17:00Fewer than 200 measured departures—3032
18:00No observations———
19:00No observations———
20:00No observations———
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

Recorded flights Partial coverage: domestic flights only

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
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—185188
TuesdayFewer than 200 measured departures—179183
WednesdayFewer than 200 measured departures—182183
ThursdayFewer than 200 measured departures—187190
FridayFewer than 200 measured departures—187191
SaturdayFewer than 200 measured departures—181185
SundayFewer than 200 measured departures—190191

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

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—118124
FebFewer than 200 measured departures—106112
MarFewer than 200 measured departures—147151
AprFewer than 200 measured departures—7475
MayFewer than 200 measured departures—9494
JunFewer than 200 measured departures—148148
JulFewer than 200 measured departures—140140
AugFewer than 200 measured departures—6262
SepFewer than 200 measured departures—6060
OctFewer than 200 measured departures—101102
NovFewer than 200 measured departures—118119
DecFewer than 200 measured departures—123124

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 82.2% 1,078
  • Delayed >15 min 16.2% 213
  • Cancelled 1.5% 20
  • 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 1.9 tonnes of nitrogen oxides (NOₓ) and 0.81 tonnes of fine particles (PM2.5) from activity at Northeast Wyoming Regional Airport, according to the EPA National Emissions Inventory.

PollutantUnit201720202023
NOₓ (Nitrogen oxides)tonnes2.61.81.9
CO (Carbon monoxide)tonnes65.732.433.2
SO₂ (Sulphur dioxide)tonnes0.590.310.39
VOC (Volatile organic compounds)tonnes3.43.11.9
PM2.5 (Fine particles)tonnes0.890.670.81
PM10 (Particulate matter)tonnes1.10.790.95
Leadkg44.120.624.6
CO₂ (Carbon dioxide)tonnes1,1091,979—

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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