Airports / Chicago O'Hare International Airport

Chicago O'Hare International Airport(KORD)

Chicago, United States

Last updated: Mar 30, 2026

Pro
Soon
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

13,583.4
Tons CO2 Total
3.2
Avg CO2/Flight
3,928
Flights Total
Emissions Intensity0.01t CO₂/nm
7,445.0 tons CO2 in selected period

Airport Patterns

Emissions up 286% vs prior period — significantly busier than prior period

7,445t
Total CO₂
3.2t
Avg CO₂/flight
3,928
Flights
Operator Profile

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

Emissions
272%
3,648t → 13,583t CO₂
CO₂ Intensity
8%
3.0t → 3.2t per departure
Flight Count
2852
1076 → 3928 flights
New Routes
685
5,079t CO₂ combined
Dropped Routes
117
Prior period only
New Aircraft
1336
1336 new tail numbers
Top Destinations
Teterboro258.5t CO₂
77 flights · avg 3.4t/flight
Van Nuys125.7t CO₂
11 flights · avg 11.4t/flight
Scottsdale118.6t CO₂
16 flights · avg 7.4t/flight
Salt Lake City109.3t CO₂
16 flights · avg 6.8t/flight
Tokyo108.8t CO₂
2 flights · avg 54.4t/flight

Spikes

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

CO₂ Above Baseline

57t

Signals Detected

1

Highest Severity

High

HighOct 5, 2025

Single high-emission departure N662CH → RJAA on Oct 5, 2025 — 56.6t CO₂, 67% of day's total

Aircraft N662CH departing to RJAA produced 56.6t CO₂, representing 67% of all airport emissions on Oct 5, 2025.

56.6t CO₂

Route Map

Top Routes by Emissions
ChicagoTeterboro

KORD to KTEB · 721 miles

Total Flights

77

Avg CO₂/Flight

3.4t

Total Emissions

258.5t CO₂

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

KORD to KVNY · 1,737 miles

Total Flights

11

Avg CO₂/Flight

11.4t

Total Emissions

125.7t CO₂

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

KORD to KSDL · 1,426 miles

Total Flights

16

Avg CO₂/Flight

7.4t

Total Emissions

118.6t CO₂

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

KORD to KSLC · 1,247 miles

Total Flights

16

Avg CO₂/Flight

6.8t

Total Emissions

109.3t CO₂

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

KORD to RJAA · 6,260 miles

Total Flights

2

Avg CO₂/Flight

54.4t

Total Emissions

108.8t CO₂

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

KORD to KIAD · 588 miles

Total Flights

36

Avg CO₂/Flight

2.9t

Total Emissions

104.0t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 91
Aircraft Using This Airport
View All Aircraft
N193LS·Gulfstream G650
124.2t CO₂ · avg 17.7t/visit · 7 visits · Last seen 26 Aug 2025
N650NBCharter·Gulfstream G650
73.1t CO₂ · avg 12.2t/visit · 6 visits · Last seen 6 Feb 2026
N476CB·Gulfstream G600
65.4t CO₂ · avg 21.8t/visit · 3 visits · Last seen 27 Mar 2026
N537NACharter·Gulfstream GV
60.6t CO₂ · avg 20.2t/visit · 3 visits · Last seen 10 Dec 2025
N662CH·Gulfstream G650
56.6t CO₂ · avg 56.6t/visit · 1 visit · Last seen 5 Oct 2025
9H-649FXCharter·Gulfstream G650
52.3t CO₂ · avg 26.1t/visit · 2 visits · Last seen 4 Jul 2025
N667FXCharter·Gulfstream G650
44.6t CO₂ · avg 11.1t/visit · 4 visits · Last seen 24 Mar 2026
A7-CGUCharter·Gulfstream G650
41.9t CO₂ · avg 41.9t/visit · 1 visit · Last seen 20 Jun 2025
T7-PYRCharter·Bombardier Global 7500
40.3t CO₂ · avg 20.1t/visit · 2 visits · Last seen 28 Sept 2025
T7-PMM·Bombardier Global 7500
39.0t CO₂ · avg 19.5t/visit · 2 visits · Last seen 5 Feb 2026
Page 1 of 169

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period