Airports / Randolph Air Force Base Auxiliary Field

Randolph Air Force Base Auxiliary Field(KSEQ)

Seguin, United States

Last updated: Mar 22, 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

84.4
Tons CO2 Total
1.9
Avg CO2/Flight
49
Flights Total
Emissions Intensity0.01t CO₂/nm
61.4 tons CO2 in selected period

Airport Patterns

Emissions up 259% vs prior period — significantly busier than prior period

61t
Total CO₂
1.9t
Avg CO₂/flight
49
Flights
Operator Profile

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

Emissions
204%
28t → 84t CO₂
CO₂ Intensity
57%
1.2t → 1.9t per departure
Flight Count
24
25 → 49 flights
New Routes
22
64t CO₂ combined
Dropped Routes
7
Prior period only
New Aircraft
27
27 new tail numbers
Top Destinations
Syracuse6.6t CO₂
1 flight · avg 6.6t/flight
West Palm Beach5.4t CO₂
1 flight · avg 5.4t/flight
Stuart5.4t CO₂
1 flight · avg 5.4t/flight
1 flight · avg 5.3t/flight
Charleston4.9t CO₂
1 flight · avg 4.9t/flight

Spikes

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

CO₂ Above Baseline

20t

Signals Detected

5

Highest Severity

High

MediumMay 2, 2025 – May 8, 2025

Elevated activity May 2, 2025 – May 8, 2025 — 3 flights in 7 days vs baseline of 1

3 flights recorded in a 7-day window, exceeding the airport baseline of 1 flights per week by 183%.

3.1t CO₂

MediumAug 19, 2025 – Aug 25, 2025

Elevated activity Aug 19, 2025 – Aug 25, 2025 — 3 flights in 7 days vs baseline of 1

3 flights recorded in a 7-day window, exceeding the airport baseline of 1 flights per week by 183%.

2.3t CO₂

MediumNov 13, 2025 – Nov 19, 2025

Elevated activity Nov 13, 2025 – Nov 19, 2025 — 3 flights in 7 days vs baseline of 1

3 flights recorded in a 7-day window, exceeding the airport baseline of 1 flights per week by 183%.

4.7t CO₂

HighFeb 10, 2026

Single high-emission departure N322FX → KSYR on Feb 10, 2026 — 6.6t CO₂, 100% of day's total

Aircraft N322FX departing to KSYR produced 6.6t CO₂, representing 100% of all airport emissions on Feb 10, 2026.

6.6t CO₂

LowMay 10, 2025 – May 23, 2025

14-day gap in recorded activity ending May 23, 2025

Airport had 14 consecutive days with zero recorded flights before activity resumed on May 23, 2025.

3.2t CO₂

Route Map

Top Routes by Emissions
SeguinSyracuse

KSEQ to KSYR · 1,525 miles

Total Flights

1

Avg CO₂/Flight

6.6t

Total Emissions

6.6t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
SeguinWest Palm Beach

KSEQ to KPBI · 1,102 miles

Total Flights

1

Avg CO₂/Flight

5.4t

Total Emissions

5.4t CO₂

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

KSEQ to KSUA · 1,087 miles

Total Flights

1

Avg CO₂/Flight

5.4t

Total Emissions

5.4t CO₂

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

KSEQ to KSBS · 909 miles

Total Flights

1

Avg CO₂/Flight

5.3t

Total Emissions

5.3t CO₂

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

KSEQ to KCHS · 1,079 miles

Total Flights

1

Avg CO₂/Flight

4.9t

Total Emissions

4.9t CO₂

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

KSEQ to KCOS · 747 miles

Total Flights

1

Avg CO₂/Flight

4.3t

Total Emissions

4.3t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
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Aircraft Using This Airport
View All Aircraft
N322FXCharter·Embraer Praetor 500
6.6t CO₂ · avg 6.6t/visit · 1 visit · Last seen 10 Feb 2026
N676GHCharter·Hawker 750/850
5.4t CO₂ · avg 5.4t/visit · 1 visit · Last seen 19 Mar 2026
N391JSCharter·Bombardier Challenger 350
5.4t CO₂ · avg 5.4t/visit · 1 visit · Last seen 16 Dec 2025
N50VS·Cessna Citation SII
5.3t CO₂ · avg 2.6t/visit · 2 visits · Last seen 24 Feb 2026
N29QACharter·Cessna Citation XLS
4.9t CO₂ · avg 4.9t/visit · 1 visit · Last seen 25 Jul 2025
N332FXCharter·Embraer Praetor 500
4.3t CO₂ · avg 4.3t/visit · 1 visit · Last seen 15 Jun 2025
N575TM·Cessna Citation CJ2
3.9t CO₂ · avg 3.9t/visit · 1 visit · Last seen 29 May 2025
N818RC·Bombardier Challenger 300
3.6t CO₂ · avg 3.6t/visit · 1 visit · Last seen 13 Nov 2025
N794QSCharter·Bombardier Challenger 300
3.6t CO₂ · avg 3.6t/visit · 1 visit · Last seen 15 Dec 2025
N453FXCharter·Gulfstream GIV
2.0t CO₂ · avg 2.0t/visit · 1 visit · Last seen 7 Mar 2026
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Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period