Airports / Stennis International Airport

Stennis International Airport(KHSA)

Bay St Louis, United States

Last updated: Mar 30, 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

287.7
Tons CO2 Total
2.0
Avg CO2/Flight
134
Flights Total
Emissions Intensity0.01t CO₂/nm
124.9 tons CO2 in selected period

Airport Patterns

Emissions up 245% vs prior period — significantly busier than prior period

125t
Total CO₂
2.0t
Avg CO₂/flight
134
Flights
Operator Profile

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

Emissions
16%
249t → 288t CO₂
CO₂ Intensity
3%
2.0t → 2.0t per departure
Flight Count
63
71 → 134 flights
New Routes
68
194t CO₂ combined
Dropped Routes
36
Prior period only
New Aircraft
100
100 new tail numbers
Top Destinations
Santa Ana16.5t CO₂
1 flight · avg 16.5t/flight
Dallas12.0t CO₂
3 flights · avg 4.0t/flight
Long Beach12.0t CO₂
1 flight · avg 12.0t/flight
Houston7.5t CO₂
4 flights · avg 1.9t/flight
San Antonio4.8t CO₂
2 flights · avg 2.4t/flight

Spikes

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

CO₂ Above Baseline

49t

Signals Detected

5

Highest Severity

High

MediumMay 1, 2025 – May 7, 2025

Elevated activity May 1, 2025 – May 7, 2025 — 8 flights in 7 days vs baseline of 3

8 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 184%.

14.4t CO₂

MediumAug 17, 2025 – Aug 23, 2025

Elevated activity Aug 17, 2025 – Aug 23, 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 148%.

9.7t CO₂

MediumSep 21, 2025 – Sep 27, 2025

Elevated activity Sep 21, 2025 – Sep 27, 2025 — 6 flights in 7 days vs baseline of 3

6 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 113%.

6.6t CO₂

HighJun 7, 2025

Single high-emission departure N1963N → KSNA on Jun 7, 2025 — 16.5t CO₂, 100% of day's total

Aircraft N1963N departing to KSNA produced 16.5t CO₂, representing 100% of all airport emissions on Jun 7, 2025.

16.5t CO₂

LowJul 17, 2025 – Aug 1, 2025

15-day gap in recorded activity ending Aug 1, 2025

Airport had 15 consecutive days with zero recorded flights before activity resumed on Aug 1, 2025.

1.4t CO₂

Route Map

Top Routes by Emissions
Bay St LouisSanta Ana

KHSA to KSNA · 1,674 miles

Total Flights

1

Avg CO₂/Flight

16.5t

Total Emissions

16.5t CO₂

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

KHSA to KDAL · 468 miles

Total Flights

3

Avg CO₂/Flight

4.0t

Total Emissions

12.0t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Bay St LouisLong Beach

KHSA to KLGB · 1,691 miles

Total Flights

1

Avg CO₂/Flight

12.0t

Total Emissions

12.0t CO₂

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

KHSA to KHOU · 352 miles

Total Flights

4

Avg CO₂/Flight

1.9t

Total Emissions

7.5t CO₂

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

KHSA to KSAT · 543 miles

Total Flights

2

Avg CO₂/Flight

2.4t

Total Emissions

4.8t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Bay St LouisNew Orleans

KHSA to KMSY · 55 miles

Total Flights

5

Avg CO₂/Flight

0.8t

Total Emissions

3.9t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
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Aircraft Using This Airport
View All Aircraft
N1963N·Gulfstream GIV
16.5t CO₂ · avg 16.5t/visit · 1 visit · Last seen 7 Jun 2025
N785QS·Gulfstream GV
12.0t CO₂ · avg 12.0t/visit · 1 visit · Last seen 17 Oct 2025
N999AHCharter·Gulfstream GIV
11.0t CO₂ · avg 11.0t/visit · 1 visit · Last seen 28 Aug 2025
N653FXCharter·Gulfstream G650
7.7t CO₂ · avg 7.7t/visit · 1 visit · Last seen 13 Jul 2025
N371FPCharter·Gulfstream GIV
4.8t CO₂ · avg 4.8t/visit · 1 visit · Last seen 13 Oct 2025
N880CFCharter·Gulfstream GIV
3.2t CO₂ · avg 3.2t/visit · 1 visit · Last seen 15 May 2025
N855SC·Cessna Citation XLS
3.1t CO₂ · avg 3.1t/visit · 1 visit · Last seen 4 Nov 2025
N150MBCharter·Bombardier Challenger 300
2.9t CO₂ · avg 2.9t/visit · 1 visit · Last seen 17 Dec 2025
N393JECharter·Cessna Citation Latitude
2.6t CO₂ · avg 1.3t/visit · 2 visits · Last seen 13 Feb 2026
N265HCharter·Dassault Falcon 900
2.6t CO₂ · avg 2.6t/visit · 1 visit · Last seen 4 Mar 2026
Page 1 of 11

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period