Airports / Stephenville Clark Regional Airport

Stephenville Clark Regional Airport(KSEP)

Stephenville, United States

Last updated: Mar 27, 2026

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

Activity Summary

361.4
Tons CO2 Total
1.5
Avg CO2/Flight
194
Flights Total
Emissions Intensity0.01t CO₂/nm
113.9 tons CO2 in selected period

Airport Patterns

Emissions up 375% vs prior period — significantly busier than prior period

114t
Total CO₂
1.5t
Avg CO₂/flight
194
Flights
Operator Profile

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

Emissions
>300%
56t → 361t CO₂
CO₂ Intensity
39%
1.1t → 1.5t per departure
Flight Count
Prior data incomplete
New Routes
82
275t CO₂ combined
Dropped Routes
9
Prior period only
New Aircraft
94
94 new tail numbers
Top Destinations
Dallas18.7t CO₂
24 flights · avg 0.8t/flight
Van Nuys10.2t CO₂
1 flight · avg 10.2t/flight
1 flight · avg 7.8t/flight
Phoenix7.6t CO₂
2 flights · avg 3.8t/flight
Salt Lake City6.1t CO₂
1 flight · avg 6.1t/flight

Spikes

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

CO₂ Above Baseline

72t

Signals Detected

4

Highest Severity

High

MediumApr 8, 2025 – Apr 14, 2025

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

8 flights recorded in a 7-day window, exceeding the airport baseline of 4 flights per week by 112%.

26.1t CO₂

MediumJun 16, 2025 – Jun 22, 2025

Elevated activity Jun 16, 2025 – Jun 22, 2025 — 8 flights in 7 days vs baseline of 4

8 flights recorded in a 7-day window, exceeding the airport baseline of 4 flights per week by 112%.

11.8t CO₂

MediumJun 25, 2025 – Jul 1, 2025

Elevated activity Jun 25, 2025 – Jul 1, 2025 — 8 flights in 7 days vs baseline of 4

8 flights recorded in a 7-day window, exceeding the airport baseline of 4 flights per week by 112%.

19.7t CO₂

HighApr 13, 2025

Single high-emission departure N824S → KSEP on Apr 13, 2025 — 14.3t CO₂, 100% of day's total

Aircraft N824S departing to KSEP produced 14.3t CO₂, representing 100% of all airport emissions on Apr 13, 2025.

14.3t CO₂

Route Map

Top Routes by Emissions
StephenvilleDallas

KSEP to KDAL · 89 miles

Total Flights

24

Avg CO₂/Flight

0.8t

Total Emissions

18.7t CO₂

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

KSEP to KVNY · 1,180 miles

Total Flights

1

Avg CO₂/Flight

10.2t

Total Emissions

10.2t CO₂

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

KSEP to KSSI · 989 miles

Total Flights

1

Avg CO₂/Flight

7.8t

Total Emissions

7.8t CO₂

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

KSEP to KPHX · 806 miles

Total Flights

2

Avg CO₂/Flight

3.8t

Total Emissions

7.6t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
StephenvilleSalt Lake City

KSEP to KSLC · 967 miles

Total Flights

1

Avg CO₂/Flight

6.1t

Total Emissions

6.1t CO₂

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

KSEP to KSNA · 1,144 miles

Total Flights

1

Avg CO₂/Flight

5.0t

Total Emissions

5.0t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Page 1 of 7
Aircraft Using This Airport
View All Aircraft
N317LLCharter·Gulfstream G650
10.2t CO₂ · avg 10.2t/visit · 1 visit · Last seen 27 Jun 2025
N510MGCharter·Gulfstream GIV
7.8t CO₂ · avg 7.8t/visit · 1 visit · Last seen 23 May 2025
N824SCharter·Dassault Falcon 900
6.4t CO₂ · avg 0.2t/visit · 39 visits · Last seen 27 Feb 2026
N280LMCharter·Gulfstream G280
6.1t CO₂ · avg 6.1t/visit · 1 visit · Last seen 21 Dec 2025
N600AT·Cessna Citation SII
5.0t CO₂ · avg 2.5t/visit · 2 visits · Last seen 5 Jun 2025
N530FXCharter·Bombardier Challenger 300
4.7t CO₂ · avg 4.7t/visit · 1 visit · Last seen 27 Mar 2026
N981QS·Cessna Citation Latitude
3.9t CO₂ · avg 3.9t/visit · 1 visit · Last seen 23 Oct 2025
N636QSCharter·Cessna Citation Latitude
3.7t CO₂ · avg 3.7t/visit · 1 visit · Last seen 5 Dec 2025
N187MCCharter·Cessna Citation CJ2
3.7t CO₂ · avg 3.7t/visit · 1 visit · Last seen 20 Jun 2025
N521QSCharter·Cessna Citation Latitude
3.6t CO₂ · avg 3.6t/visit · 1 visit · Last seen 27 Jun 2025
Page 1 of 10

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period