Airports / Karl Stefan Memorial Airport

Karl Stefan Memorial Airport(KOFK)

Norfolk, United States

Last updated: Mar 28, 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· Emissions increasing vs prior period

Activity Summary

217.0
Tons CO2 Total
3.0
Avg CO2/Flight
90
Flights Total
Emissions Intensity0.01t CO₂/nm
63.9 tons CO2 in selected period

Airport Patterns

Emissions up 1132% vs prior period — significantly busier than prior period

64t
Total CO₂
3.0t
Avg CO₂/flight
90
Flights
Operator Profile

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

Emissions
297%
55t → 217t CO₂
CO₂ Intensity
17%
2.6t → 3.0t per departure
Flight Count
67
23 → 90 flights
New Routes
36
136t CO₂ combined
Dropped Routes
4
Prior period only
New Aircraft
32
32 new tail numbers
Top Destinations
Santa Ana15.4t CO₂
2 flights · avg 7.7t/flight
Teterboro12.3t CO₂
2 flights · avg 6.1t/flight
White Plains6.5t CO₂
1 flight · avg 6.5t/flight
Portland6.0t CO₂
1 flight · avg 6.0t/flight
Calgary5.2t CO₂
1 flight · avg 5.2t/flight

Spikes

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

CO₂ Above Baseline

33t

Signals Detected

5

Highest Severity

High

MediumMay 24, 2025 – May 30, 2025

Elevated activity May 24, 2025 – May 30, 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 111%.

6.6t CO₂

MediumJun 26, 2025 – Jul 2, 2025

Elevated activity Jun 26, 2025 – Jul 2, 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 111%.

5.1t CO₂

MediumJul 10, 2025 – Jul 16, 2025

Elevated activity Jul 10, 2025 – Jul 16, 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 111%.

9.1t CO₂

HighAug 7, 2025

Single high-emission departure N868JS → KOFK on Aug 7, 2025 — 9.6t CO₂, 100% of day's total

Aircraft N868JS departing to KOFK produced 9.6t CO₂, representing 100% of all airport emissions on Aug 7, 2025.

9.6t CO₂

LowApr 29, 2025 – May 15, 2025

16-day gap in recorded activity ending May 15, 2025

Airport had 16 consecutive days with zero recorded flights before activity resumed on May 15, 2025.

2.7t CO₂

Route Map

Top Routes by Emissions
NorfolkSanta Ana

KOFK to KSNA · 1,250 miles

Total Flights

2

Avg CO₂/Flight

7.7t

Total Emissions

15.4t CO₂

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

KOFK to KTEB · 1,210 miles

Total Flights

2

Avg CO₂/Flight

6.1t

Total Emissions

12.3t CO₂

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

KOFK to KHPN · 1,225 miles

Total Flights

1

Avg CO₂/Flight

6.5t

Total Emissions

6.5t CO₂

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

KOFK to KPDX · 1,274 miles

Total Flights

1

Avg CO₂/Flight

6.0t

Total Emissions

6.0t CO₂

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

KOFK to CYYC · 1,006 miles

Total Flights

1

Avg CO₂/Flight

5.2t

Total Emissions

5.2t CO₂

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

KOFK to KOGD · 754 miles

Total Flights

1

Avg CO₂/Flight

2.6t

Total Emissions

2.6t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
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Aircraft Using This Airport
View All Aircraft
N989JW·Dassault Falcon 7X
8.0t CO₂ · avg 4.0t/visit · 2 visits · Last seen 13 Mar 2026
N50S·Gulfstream GV
7.7t CO₂ · avg 7.7t/visit · 1 visit · Last seen 3 Jan 2026
N214WTCharter·Cessna Citation X
7.4t CO₂ · avg 7.4t/visit · 1 visit · Last seen 1 Oct 2025
N610RLCharter·Dassault Falcon 900
6.5t CO₂ · avg 6.5t/visit · 1 visit · Last seen 4 Oct 2025
N535QSCharter·Cessna Citation Latitude
6.0t CO₂ · avg 6.0t/visit · 1 visit · Last seen 24 Nov 2025
C-GPAJCharter·Bombardier Challenger 600
5.2t CO₂ · avg 5.2t/visit · 1 visit · Last seen 20 Jun 2025
N695QSCharter·Cessna Citation Latitude
4.6t CO₂ · avg 4.6t/visit · 1 visit · Last seen 1 Aug 2025
N7NE·Cessna Citation CJ4
4.1t CO₂ · avg 0.1t/visit · 52 visits · Last seen 16 Mar 2026
N801MM·Bombardier Learjet 45
2.3t CO₂ · avg 2.3t/visit · 1 visit · Last seen 26 Oct 2025
N516QSCharter·Cessna Citation Latitude
2.1t CO₂ · avg 2.1t/visit · 1 visit · Last seen 13 Jul 2025
Page 1 of 4

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period