Airports / Daniel K. Inouye International Airport

Daniel K. Inouye International Airport(PHNL)

Honolulu, 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

6,873.3
Tons CO2 Total
14.7
Avg CO2/Flight
438
Flights Total
Emissions Intensity0.01t CO₂/nm
1,341.4 tons CO2 in selected period

Airport Patterns

Activity broadly consistent with prior period — averaging 37 flights/month

1,341t
Total CO₂
14.7t
Avg CO₂/flight
438
Flights
Operator Profile

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

Emissions
121%
3,105t → 6,873t CO₂
CO₂ Intensity
14.8t → 14.7t per departure
Flight Count
194
244 → 438 flights
New Routes
79
2,373t CO₂ combined
Dropped Routes
45
Prior period only
New Aircraft
258
258 new tail numbers
Top Destinations
Sydney165.9t CO₂
6 flights · avg 27.6t/flight
Savannah89.7t CO₂
1 flight · avg 89.7t/flight
Torino88.5t CO₂
1 flight · avg 88.5t/flight
1 flight · avg 52.9t/flight
Santa Ana50.5t CO₂
3 flights · avg 16.8t/flight

Spikes

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

CO₂ Above Baseline

779t

Signals Detected

3

Highest Severity

High

MediumAug 3, 2025 – Aug 9, 2025

Elevated activity Aug 3, 2025 – Aug 9, 2025 — 19 flights in 7 days vs baseline of 9

19 flights recorded in a 7-day window, exceeding the airport baseline of 9 flights per week by 107%.

315.6t CO₂

MediumDec 13, 2025 – Dec 19, 2025

Elevated activity Dec 13, 2025 – Dec 19, 2025 — 19 flights in 7 days vs baseline of 9

19 flights recorded in a 7-day window, exceeding the airport baseline of 9 flights per week by 107%.

374.2t CO₂

HighDec 15, 2025

Single high-emission departure N912GG → KSAV on Dec 15, 2025 — 89.7t CO₂, 77% of day's total

Aircraft N912GG departing to KSAV produced 89.7t CO₂, representing 77% of all airport emissions on Dec 15, 2025.

89.7t CO₂

Route Map

Top Routes by Emissions
HonoluluSydney

PHNL to YSSY · 5,077 miles

Total Flights

6

Avg CO₂/Flight

27.6t

Total Emissions

165.9t CO₂

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

PHNL to KSAV · 4,699 miles

Total Flights

1

Avg CO₂/Flight

89.7t

Total Emissions

89.7t CO₂

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

PHNL to LIMF · 7,751 miles

Total Flights

1

Avg CO₂/Flight

88.5t

Total Emissions

88.5t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
HonoluluNossa Senhora do Carmo

PHNL to VMMC · 5,583 miles

Total Flights

1

Avg CO₂/Flight

52.9t

Total Emissions

52.9t CO₂

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

PHNL to KSNA · 2,581 miles

Total Flights

3

Avg CO₂/Flight

16.8t

Total Emissions

50.5t CO₂

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

PHNL to WRRR · 5,802 miles

Total Flights

1

Avg CO₂/Flight

49.2t

Total Emissions

49.2t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
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Aircraft Using This Airport
View All Aircraft
N912GG·Gulfstream G650
89.7t CO₂ · avg 89.7t/visit · 1 visit · Last seen 15 Dec 2025
9H-VIJCharter·Bombardier Global 7500
88.5t CO₂ · avg 88.5t/visit · 1 visit · Last seen 3 Feb 2026
N988NC·Gulfstream G650
87.4t CO₂ · avg 17.5t/visit · 5 visits · Last seen 13 Dec 2025
N650NBCharter·Gulfstream G650
53.0t CO₂ · avg 26.5t/visit · 2 visits · Last seen 18 Dec 2025
VP-CSYCharter·Bombardier Global 7500
52.9t CO₂ · avg 52.9t/visit · 1 visit · Last seen 19 Dec 2025
N887WT·Gulfstream G650
49.2t CO₂ · avg 49.2t/visit · 1 visit · Last seen 10 Aug 2025
N725CS·Bombardier Global 5000
46.1t CO₂ · avg 46.1t/visit · 1 visit · Last seen 10 Jan 2026
N117TF·Bombardier Global Express
42.0t CO₂ · avg 42.0t/visit · 1 visit · Last seen 6 Feb 2026
N171EX·Dassault Falcon 7X
40.1t CO₂ · avg 10.0t/visit · 4 visits · Last seen 22 Jan 2026
N750LG·Gulfstream GV
37.8t CO₂ · avg 18.9t/visit · 2 visits · Last seen 1 Nov 2025
Page 1 of 32

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period