Airports / St Marys Municipal Airport

St Marys Municipal Airport(KOYM)

St Marys, United States

Last updated: Mar 28, 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

184.1
Tons CO2 Total
2.1
Avg CO2/Flight
88
Flights Total
Emissions Intensity0.01t CO₂/nm
147.8 tons CO2 in selected period

Airport Patterns

Emissions up 512% vs prior period — significantly busier than prior period

148t
Total CO₂
2.1t
Avg CO₂/flight
88
Flights
Operator Profile

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

Emissions
>300%
27t → 184t CO₂
CO₂ Intensity
15%
2.4t → 2.1t per departure
Flight Count
Prior data incomplete
New Routes
54
171t CO₂ combined
Dropped Routes
10
Prior period only
New Aircraft
77
77 new tail numbers
Top Destinations
Budapest32.9t CO₂
1 flight · avg 32.9t/flight
Delta13.0t CO₂
1 flight · avg 13.0t/flight
San Antonio12.8t CO₂
1 flight · avg 12.8t/flight
Teterboro10.5t CO₂
14 flights · avg 0.8t/flight
San Juan7.0t CO₂
1 flight · avg 7.0t/flight

Spikes

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

CO₂ Above Baseline

66t

Signals Detected

5

Highest Severity

High

MediumApr 8, 2025 – Apr 14, 2025

Elevated activity Apr 8, 2025 – Apr 14, 2025 — 4 flights in 7 days vs baseline of 2

4 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 132%.

6.3t CO₂

MediumApr 15, 2025 – Apr 21, 2025

Elevated activity Apr 15, 2025 – Apr 21, 2025 — 4 flights in 7 days vs baseline of 2

4 flights recorded in a 7-day window, exceeding the airport baseline of 2 flights per week by 132%.

8.8t CO₂

MediumJul 18, 2025 – Jul 24, 2025

Elevated activity Jul 18, 2025 – Jul 24, 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 190%.

13.9t CO₂

HighAug 21, 2025

Single high-emission departure N700XT → LHBP on Aug 21, 2025 — 32.9t CO₂, 95% of day's total

Aircraft N700XT departing to LHBP produced 32.9t CO₂, representing 95% of all airport emissions on Aug 21, 2025.

32.9t CO₂

LowMay 4, 2025 – May 22, 2025

18-day gap in recorded activity ending May 22, 2025

Airport had 18 consecutive days with zero recorded flights before activity resumed on May 22, 2025.

3.9t CO₂

Route Map

Top Routes by Emissions
St MarysBudapest

KOYM to LHBP · 4,508 miles

Total Flights

1

Avg CO₂/Flight

32.9t

Total Emissions

32.9t CO₂

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

KOYM to KAJZ · 1,565 miles

Total Flights

1

Avg CO₂/Flight

13.0t

Total Emissions

13.0t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
St MarysSan Antonio

KOYM to KSAT · 1,386 miles

Total Flights

1

Avg CO₂/Flight

12.8t

Total Emissions

12.8t CO₂

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

KOYM to KTEB · 234 miles

Total Flights

14

Avg CO₂/Flight

0.8t

Total Emissions

10.5t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
St MarysSan Juan

KOYM to TJSJ · 1,750 miles

Total Flights

1

Avg CO₂/Flight

7.0t

Total Emissions

7.0t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
St MarysSandy Point

KOYM to MYAS · 1,066 miles

Total Flights

1

Avg CO₂/Flight

6.8t

Total Emissions

6.8t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 8
Aircraft Using This Airport
View All Aircraft
N700XT·Gulfstream G650
32.9t CO₂ · avg 32.9t/visit · 1 visit · Last seen 21 Aug 2025
N711RL·Gulfstream G650
13.0t CO₂ · avg 13.0t/visit · 1 visit · Last seen 2 Jul 2025
N151JECharter·Gulfstream GIV
12.8t CO₂ · avg 12.8t/visit · 1 visit · Last seen 24 Jul 2025
N945QSCharter·Cessna Citation Latitude
7.0t CO₂ · avg 7.0t/visit · 1 visit · Last seen 28 Mar 2026
N780WCharter·Gulfstream GV
6.8t CO₂ · avg 6.8t/visit · 1 visit · Last seen 28 Jul 2025
N471CB·Cessna Citation Sovereign
5.7t CO₂ · avg 5.7t/visit · 1 visit · Last seen 26 Mar 2026
N125TR·Gulfstream G280
4.0t CO₂ · avg 0.5t/visit · 8 visits · Last seen 15 Jan 2026
N35DMCharter·Gulfstream GIV
4.0t CO₂ · avg 4.0t/visit · 1 visit · Last seen 12 Apr 2025
N811QSCharter·Cessna Citation Longitude
3.9t CO₂ · avg 3.9t/visit · 1 visit · Last seen 22 May 2025
N496AC·Dassault Falcon 7X
3.4t CO₂ · avg 3.4t/visit · 1 visit · Last seen 18 Sept 2025
Page 1 of 8

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period