Airports / Walla Walla Regional Airport

Walla Walla Regional Airport(KALW)

Walla Walla, United States

Last updated: Mar 29, 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

320.9
Tons CO2 Total
2.3
Avg CO2/Flight
142
Flights Total
Emissions Intensity0.01t CO₂/nm
103.6 tons CO2 in selected period

Airport Patterns

Emissions up 230% vs prior period — significantly busier than prior period

104t
Total CO₂
2.3t
Avg CO₂/flight
142
Flights
Operator Profile

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

Emissions
>300%
45t → 321t CO₂
CO₂ Intensity
41%
3.9t → 2.3t per departure
Flight Count
Prior data incomplete
New Routes
79
288t CO₂ combined
Dropped Routes
9
Prior period only
New Aircraft
102
102 new tail numbers
Top Destinations
Greer10.0t CO₂
1 flight · avg 10.0t/flight
Miami9.6t CO₂
1 flight · avg 9.6t/flight
Las Vegas8.1t CO₂
2 flights · avg 4.0t/flight
San Francisco8.0t CO₂
3 flights · avg 2.7t/flight
Van Nuys6.6t CO₂
1 flight · avg 6.6t/flight

Spikes

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

CO₂ Above Baseline

86t

Signals Detected

5

Highest Severity

High

MediumApr 22, 2025 – Apr 28, 2025

Elevated activity Apr 22, 2025 – Apr 28, 2025 — 6 flights in 7 days vs baseline of 3

6 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 118%.

26.6t CO₂

MediumApr 30, 2025 – May 6, 2025

Elevated activity Apr 30, 2025 – May 6, 2025 — 6 flights in 7 days vs baseline of 3

6 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 118%.

6.9t CO₂

MediumMay 16, 2025 – May 22, 2025

Elevated activity May 16, 2025 – May 22, 2025 — 7 flights in 7 days vs baseline of 3

7 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 155%.

29.8t CO₂

HighMay 21, 2025

Single high-emission departure N478PJ → KALW on May 21, 2025 — 18.8t CO₂, 97% of day's total

Aircraft N478PJ departing to KALW produced 18.8t CO₂, representing 97% of all airport emissions on May 21, 2025.

18.8t CO₂

LowOct 19, 2025 – Nov 2, 2025

14-day gap in recorded activity ending Nov 2, 2025

Airport had 14 consecutive days with zero recorded flights before activity resumed on Nov 2, 2025.

4.3t CO₂

Route Map

Top Routes by Emissions
Walla WallaGreer

KALW to KGSP · 2,026 miles

Total Flights

1

Avg CO₂/Flight

10.0t

Total Emissions

10.0t CO₂

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

KALW to KMIA · 2,511 miles

Total Flights

1

Avg CO₂/Flight

9.6t

Total Emissions

9.6t CO₂

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

KALW to KLAS · 710 miles

Total Flights

2

Avg CO₂/Flight

4.0t

Total Emissions

8.1t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Walla WallaSan Francisco

KALW to KSFO · 622 miles

Total Flights

3

Avg CO₂/Flight

2.7t

Total Emissions

8.0t CO₂

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

KALW to KVNY · 821 miles

Total Flights

1

Avg CO₂/Flight

6.6t

Total Emissions

6.6t CO₂

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

KALW to KMRY · 682 miles

Total Flights

1

Avg CO₂/Flight

6.4t

Total Emissions

6.4t CO₂

Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
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Aircraft Using This Airport
View All Aircraft
N925AF·Bombardier Challenger 600
10.0t CO₂ · avg 10.0t/visit · 1 visit · Last seen 24 Jul 2025
N578QSCharter·Cessna Citation Latitude
9.6t CO₂ · avg 4.8t/visit · 2 visits · Last seen 29 Mar 2026
N648QSCharter·Cessna Citation XLS
6.6t CO₂ · avg 6.6t/visit · 1 visit · Last seen 5 Aug 2025
N825QSCharter·Cessna Citation Longitude
6.4t CO₂ · avg 3.2t/visit · 2 visits · Last seen 11 Mar 2026
N990DW·Cessna Citation XLS
6.2t CO₂ · avg 6.2t/visit · 1 visit · Last seen 16 Mar 2026
N561CF·Cessna Citation V Ultra
5.5t CO₂ · avg 2.8t/visit · 2 visits · Last seen 25 Jul 2025
N92FTCharter·Gulfstream G280
4.1t CO₂ · avg 4.1t/visit · 1 visit · Last seen 2 Sept 2025
N439FXCharter·Embraer Praetor 500
4.0t CO₂ · avg 4.0t/visit · 1 visit · Last seen 6 Feb 2026
N522ADCharter·Bombardier Challenger 300
3.9t CO₂ · avg 3.9t/visit · 1 visit · Last seen 2 Sept 2025
N730QSCharter·Bombardier Challenger 300
3.8t CO₂ · avg 3.8t/visit · 1 visit · Last seen 4 Jan 2026
Page 1 of 11

Recent Flights

10 total flights recorded

Showing most recent flights — not filtered by viewing period