Airports / University of Oklahoma Westheimer Airport

University of Oklahoma Westheimer Airport(KOUN)

Norman, United States

Last updated: Mar 30, 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

1,482.0
Tons CO2 Total
1.8
Avg CO2/Flight
712
Flights Total
Emissions Intensity0.00t CO₂/nm
514.1 tons CO2 in selected period

Airport Patterns

Emissions up 319% vs prior period — significantly busier than prior period

514t
Total CO₂
1.8t
Avg CO₂/flight
712
Flights
Operator Profile

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

Emissions
>300%
314t → 1,482t CO₂
CO₂ Intensity
6%
1.9t → 1.8t per departure
Flight Count
Prior data incomplete
New Routes
245
1,000t CO₂ combined
Dropped Routes
38
Prior period only
New Aircraft
367
367 new tail numbers
Top Destinations
San Antonio20.4t CO₂
14 flights · avg 1.5t/flight
Las Vegas16.3t CO₂
5 flights · avg 3.3t/flight
Dallas13.9t CO₂
19 flights · avg 0.7t/flight
Phoenix13.8t CO₂
3 flights · avg 4.6t/flight
Louisville12.8t CO₂
5 flights · avg 2.6t/flight

Spikes

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

CO₂ Above Baseline

190t

Signals Detected

4

Highest Severity

High

MediumSep 15, 2025 – Sep 21, 2025

Elevated activity Sep 15, 2025 – Sep 21, 2025 — 28 flights in 7 days vs baseline of 14

28 flights recorded in a 7-day window, exceeding the airport baseline of 14 flights per week by 103%.

63.2t CO₂

MediumDec 13, 2025 – Dec 19, 2025

Elevated activity Dec 13, 2025 – Dec 19, 2025 — 35 flights in 7 days vs baseline of 14

35 flights recorded in a 7-day window, exceeding the airport baseline of 14 flights per week by 154%.

56.1t CO₂

MediumJan 17, 2026 – Jan 23, 2026

Elevated activity Jan 17, 2026 – Jan 23, 2026 — 28 flights in 7 days vs baseline of 14

28 flights recorded in a 7-day window, exceeding the airport baseline of 14 flights per week by 103%.

54.1t CO₂

HighApr 6, 2025

Single high-emission departure N435QS → KOUN on Apr 6, 2025 — 17.1t CO₂, 94% of day's total

Aircraft N435QS departing to KOUN produced 17.1t CO₂, representing 94% of all airport emissions on Apr 6, 2025.

17.1t CO₂

Route Map

Top Routes by Emissions
NormanSan Antonio

KOUN to KSAT · 399 miles

Total Flights

14

Avg CO₂/Flight

1.5t

Total Emissions

20.4t CO₂

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

KOUN to KLAS · 993 miles

Total Flights

5

Avg CO₂/Flight

3.3t

Total Emissions

16.3t CO₂

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

KOUN to KDAL · 169 miles

Total Flights

19

Avg CO₂/Flight

0.7t

Total Emissions

13.9t CO₂

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

KOUN to KPHX · 838 miles

Total Flights

3

Avg CO₂/Flight

4.6t

Total Emissions

13.8t CO₂

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

KOUN to KSDF · 680 miles

Total Flights

5

Avg CO₂/Flight

2.6t

Total Emissions

12.8t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
NormanFort Bliss/El Paso

KOUN to KBIF · 564 miles

Total Flights

1

Avg CO₂/Flight

12.3t

Total Emissions

12.3t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
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Aircraft Using This Airport
View All Aircraft
N703P·Cessna Citation XLS
20.4t CO₂ · avg 1.9t/visit · 11 visits · Last seen 17 Mar 2026
N789HU·Cessna Citation XLS
18.2t CO₂ · avg 0.8t/visit · 24 visits · Last seen 20 Mar 2026
N60CM·Cessna Citation Longitude
16.2t CO₂ · avg 1.5t/visit · 11 visits · Last seen 10 Mar 2026
N405PV·Cessna Citation Sovereign
13.8t CO₂ · avg 1.5t/visit · 9 visits · Last seen 22 Mar 2026
N9PS·Bombardier Global 6000/6500
12.3t CO₂ · avg 12.3t/visit · 1 visit · Last seen 19 Mar 2026
N876MS·Cessna Citation CJ2
11.7t CO₂ · avg 0.6t/visit · 20 visits · Last seen 12 Mar 2026
N624MB·Cessna Citation CJ4
10.8t CO₂ · avg 1.1t/visit · 10 visits · Last seen 10 Dec 2025
N405HM·Bombardier Challenger 300
8.0t CO₂ · avg 0.8t/visit · 10 visits · Last seen 19 Mar 2026
N760CM·Cessna Citation Longitude
7.8t CO₂ · avg 1.1t/visit · 7 visits · Last seen 8 Mar 2026
N854QSCharter·Cessna Citation Longitude
7.3t CO₂ · avg 3.7t/visit · 2 visits · Last seen 18 Apr 2025
Page 1 of 40

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period