Airports / Madison County Executive Airport

Madison County Executive Airport(KMDQ)

Huntsville, United States

Last updated: Mar 29, 2026

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Compared to: preceding 12 months · Apr 2024 – Apr 2025
Apr 2025 – Mar 2026·vs Apr 2024 – Apr 2025

Activity Summary

342.2
Tons CO2 Total
1.8
Avg CO2/Flight
160
Flights Total
Emissions Intensity0.01t CO₂/nm
108.6 tons CO2 in selected period

Airport Patterns

Emissions up 536% vs prior period — significantly busier than prior period

109t
Total CO₂
1.8t
Avg CO₂/flight
160
Flights
Operator Profile

Charter/owner classification not available for this airport's flights

Emissions
>300%
66t → 342t CO₂
CO₂ Intensity
17%
1.6t → 1.8t per departure
Flight Count
Prior data incomplete
New Routes
86
300t CO₂ combined
Dropped Routes
22
Prior period only
New Aircraft
104
104 new tail numbers
Top Destinations
1 flight · avg 10.1t/flight
Dallas9.3t CO₂
3 flights · avg 3.1t/flight
Washington9.1t CO₂
3 flights · avg 3.0t/flight
Van Nuys8.7t CO₂
1 flight · avg 8.7t/flight
Denver5.7t CO₂
1 flight · avg 5.7t/flight

Spikes

Significant deviations from this airport's baseline in the selected period.

CO₂ Above Baseline

66t

Signals Detected

5

Highest Severity

High

MediumMay 16, 2025 – May 22, 2025

Elevated activity May 16, 2025 – May 22, 2025 — 9 flights in 7 days vs baseline of 3

9 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 191%.

12.2t CO₂

MediumJun 7, 2025 – Jun 13, 2025

Elevated activity Jun 7, 2025 – Jun 13, 2025 — 7 flights in 7 days vs baseline of 3

7 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 126%.

9.9t CO₂

MediumSep 22, 2025 – Sep 28, 2025

Elevated activity Sep 22, 2025 – Sep 28, 2025 — 7 flights in 7 days vs baseline of 3

7 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 126%.

29.4t CO₂

HighNov 6, 2025

Single high-emission departure N1902P → KMDQ on Nov 6, 2025 — 13.9t CO₂, 79% of day's total

Aircraft N1902P departing to KMDQ produced 13.9t CO₂, representing 79% of all airport emissions on Nov 6, 2025.

13.9t CO₂

LowJul 1, 2025 – Jul 15, 2025

14-day gap in recorded activity ending Jul 15, 2025

Airport had 14 consecutive days with zero recorded flights before activity resumed on Jul 15, 2025.

0.7t CO₂

Route Map

Top Routes by Emissions
HuntsvilleSan Diego/El Cajon

KMDQ to KSEE · 1,744 miles

Total Flights

1

Avg CO₂/Flight

10.1t

Total Emissions

10.1t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
HuntsvilleDallas

KMDQ to KDAL · 607 miles

Total Flights

3

Avg CO₂/Flight

3.1t

Total Emissions

9.3t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
HuntsvilleWashington

KMDQ to KIAD · 577 miles

Total Flights

3

Avg CO₂/Flight

3.0t

Total Emissions

9.1t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
HuntsvilleVan Nuys

KMDQ to KVNY · 1,810 miles

Total Flights

1

Avg CO₂/Flight

8.7t

Total Emissions

8.7t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
HuntsvilleDenver

KMDQ to KBJC · 1,075 miles

Total Flights

1

Avg CO₂/Flight

5.7t

Total Emissions

5.7t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
HuntsvilleMarco Island

KMDQ to KMKY · 678 miles

Total Flights

1

Avg CO₂/Flight

4.6t

Total Emissions

4.6t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
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Aircraft Using This Airport
View All Aircraft
N350XJ·Bombardier Challenger 300
10.1t CO₂ · avg 1.7t/visit · 6 visits · Last seen 4 Mar 2026
N446FXCharter·Embraer Praetor 500
8.7t CO₂ · avg 8.7t/visit · 1 visit · Last seen 18 Aug 2025
N611MRCharter·Cessna Citation XLS
5.7t CO₂ · avg 5.7t/visit · 1 visit · Last seen 23 Dec 2025
N68UD·Gulfstream G600
4.6t CO₂ · avg 2.3t/visit · 2 visits · Last seen 15 Feb 2026
N715VMCharter·Gulfstream G600
4.5t CO₂ · avg 4.5t/visit · 1 visit · Last seen 17 May 2025
N568FXCharter·Bombardier Challenger 350
4.3t CO₂ · avg 4.3t/visit · 1 visit · Last seen 20 Nov 2025
N347NA·Gulfstream G280
3.6t CO₂ · avg 3.6t/visit · 1 visit · Last seen 8 Jun 2025
N418FXCharter·Embraer Praetor 500
3.5t CO₂ · avg 3.5t/visit · 1 visit · Last seen 2 Sept 2025
N988TXCharter·Cessna Citation X
3.2t CO₂ · avg 3.2t/visit · 1 visit · Last seen 1 Dec 2025
N108LJ·Cessna Citation V Ultra
3.0t CO₂ · avg 0.2t/visit · 13 visits · Last seen 21 Dec 2025
Page 1 of 11

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period