Airports / Williamson County Regional Airport

Williamson County Regional Airport(KMWA)

Marion, United States

Last updated: Mar 28, 2026

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Viewing period:
Compared to: preceding 12 months · May 2024 – May 2025
May 2025 – Apr 2026·vs May 2024 – May 2025· Emissions increasing vs prior period

Activity Summary

276.3
Tons CO2 Total
3.0
Avg CO2/Flight
114
Flights Total
Emissions Intensity0.01t CO₂/nm
96.0 tons CO2 in selected period

Airport Patterns

Emissions up 83% vs prior period — significantly busier than prior period

96t
Total CO₂
3.0t
Avg CO₂/flight
114
Flights
Operator Profile

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

Emissions
214%
88t → 276t CO₂
CO₂ Intensity
15%
2.6t → 3.0t per departure
Flight Count
75
39 → 114 flights
New Routes
80
242t CO₂ combined
Dropped Routes
23
Prior period only
New Aircraft
78
78 new tail numbers
Top Destinations
San Jose17.0t CO₂
1 flight · avg 17.0t/flight
Seattle16.8t CO₂
1 flight · avg 16.8t/flight
Carlsbad13.3t CO₂
1 flight · avg 13.3t/flight
Lakeland6.7t CO₂
2 flights · avg 3.3t/flight
Dallas3.8t CO₂
1 flight · avg 3.8t/flight

Spikes

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

CO₂ Above Baseline

42t

Signals Detected

5

Highest Severity

High

MediumAug 6, 2025 – Aug 12, 2025

Elevated activity Aug 6, 2025 – Aug 12, 2025 — 6 flights in 7 days vs baseline of 2

6 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 149%.

3.9t CO₂

MediumSep 22, 2025 – Sep 28, 2025

Elevated activity Sep 22, 2025 – Sep 28, 2025 — 5 flights in 7 days vs baseline of 2

5 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 108%.

6.6t CO₂

MediumOct 31, 2025 – Nov 6, 2025

Elevated activity Oct 31, 2025 – Nov 6, 2025 — 6 flights in 7 days vs baseline of 2

6 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 149%.

12.1t CO₂

HighJan 6, 2026

Single high-emission departure N107AV → KSJC on Jan 6, 2026 — 17.0t CO₂, 86% of day's total

Aircraft N107AV departing to KSJC produced 17.0t CO₂, representing 86% of all airport emissions on Jan 6, 2026.

17.0t CO₂

LowMay 16, 2025 – May 30, 2025

14-day gap in recorded activity ending May 30, 2025

Airport had 14 consecutive days with zero recorded flights before activity resumed on May 30, 2025.

2.0t CO₂

Route Map

Top Routes by Emissions
MarionSan Jose

KMWA to KSJC · 1,794 miles

Total Flights

1

Avg CO₂/Flight

17.0t

Total Emissions

17.0t CO₂

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

KMWA to KBFI · 1,805 miles

Total Flights

1

Avg CO₂/Flight

16.8t

Total Emissions

16.8t CO₂

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

KMWA to KCRQ · 1,616 miles

Total Flights

1

Avg CO₂/Flight

13.3t

Total Emissions

13.3t CO₂

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

KMWA to KLAL · 786 miles

Total Flights

2

Avg CO₂/Flight

3.3t

Total Emissions

6.7t CO₂

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

KMWA to KRBD · 565 miles

Total Flights

1

Avg CO₂/Flight

3.8t

Total Emissions

3.8t CO₂

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

KMWA to KNBC · 593 miles

Total Flights

1

Avg CO₂/Flight

3.7t

Total Emissions

3.7t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
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Aircraft Using This Airport
View All Aircraft
N107AVCharter·Cessna Citation X
17.0t CO₂ · avg 17.0t/visit · 1 visit · Last seen 6 Jan 2026
N450AR·Gulfstream GIV
16.8t CO₂ · avg 16.8t/visit · 1 visit · Last seen 28 Oct 2025
N516WW·Gulfstream GV
13.3t CO₂ · avg 13.3t/visit · 1 visit · Last seen 15 May 2025
N122GB·Dassault Falcon 900
3.8t CO₂ · avg 3.8t/visit · 1 visit · Last seen 1 May 2025
N7202Charter·Cessna Citation Sovereign
3.7t CO₂ · avg 1.8t/visit · 2 visits · Last seen 25 Sept 2025
N853JSCharter·Cessna Citation XLS
3.6t CO₂ · avg 3.6t/visit · 1 visit · Last seen 2 Dec 2025
N623QSCharter·Cessna Citation Latitude
3.4t CO₂ · avg 1.7t/visit · 2 visits · Last seen 8 Dec 2025
N308QSCharter·Cessna Citation Sovereign
3.3t CO₂ · avg 1.6t/visit · 2 visits · Last seen 17 Jan 2026
N966RW·Gulfstream G600
3.0t CO₂ · avg 3.0t/visit · 1 visit · Last seen 5 Dec 2025
N963QSCharter·Cessna Citation Latitude
2.8t CO₂ · avg 2.8t/visit · 1 visit · Last seen 26 Dec 2025
Page 1 of 9

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period