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Airport · ALW · Walla Walla, Washington

Walla Walla, WA

According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Walla Walla, WA (ALW) ranks #332 of 382 tracked US airports by total flights (most flights = #1). Walla Walla, WA posts top-10% on-time performance among the 382 tracked U.S. airports, as a smaller regional airport.

Data updated 2026-06-13

88.8%
On-time
Top 7%
on-time, US airports
62 min
Delay when late
1.68%
Cancelled
#332 of 382
Corpus placement
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ALW on-time rate vs. the national average

Ahead of the U.S. average across all 382 tracked airports.

0%100%U.S. average79%88.8%

Delay Cause Breakdown

Top delay cause: Late Aircraft. Total delay minutes: 15,266.

Late Aircraft 50.8% (7,755 min)
Carrier 24.5% (3,736 min)
NAS (National Aviation System) 14.1% (2,157 min)
Weather 10.6% (1,618 min)
Security 0.0% (0 min)

ALW - seasonal on-time pattern

Best: April (97.8%) · worst: December (92.6%)

92%94%96%98%100% JanFebMarAprMayJunJulAugSepOctNovDec 92.6%

ALW - on-time rate by year

2021–2024, year-over-year trend.

94.5%95%95.5%96% 2021202220232024 94.7% 95.5% ▲ +0.8%

ALW - taxi-out and taxi-in (monthly)

Average taxi-out 14 min · taxi-in 4 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).

0 min10 min20 min30 min Jun 22Sep 24 7 min 16.3 min ▲ +132.9%

ALW's average taxi-out (14 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 6.1 min (August 2022) to 25.3 min (January 2024).

Cancellation & Diversion Analysis

Flight disruption statistics for Walla Walla, WA.

Cancellation Rate

1.68%

76 of 4,519 flights

Diversion Rate

0.04%

2 of 4,519 flights

Delay Rate

11.2%

504 of 4,519 flights

Top Routes from ALW

Busiest routes to and from Walla Walla, WA.

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Route Flights On-Time Distance
ALW (Walla Walla) → SEA (Seattle) 2,217 88.5% 213 mi
SEA (Seattle) → ALW (Walla Walla) 2,216 87.3% 213 mi

Nationwide peers by on-time rate & flight volume

Two PlainFlights-derived comparison paths for Walla Walla, WA, both outside Washington so the neighborhoods are not same-state geography. Axes stay disjoint: volume peers exclude the on-time peer set. Same-state compare stays below.

Similar on-time rate

Nearest out-of-state BTS on-time rate (this airport: 88.8%).

Pueblo, CO

Pueblo, CO

88.8% on-time 3,776 flights

Kotzebue, AK

Kotzebue, AK

88.7% on-time 5,950 flights

Brainerd, MN

Brainerd, MN

88.9% on-time 7,762 flights

Del Rio, TX

Del Rio, TX

88.9% on-time 3,957 flights

Similar flight volume

Nearest out-of-state total flights (this airport: 4,519).

Hobbs, NM

Hobbs, NM

4,498 flights 79.1% on-time

Barrow, AK

Barrow, AK

4,483 flights 74.4% on-time

Portsmouth, NH

Portsmouth, NH

4,468 flights 80.6% on-time

Waterloo, IA

Waterloo, IA

4,350 flights 87.7% on-time

Other Airports in Washington

Compare performance with other Washington airports.

SEA 83.1%

Seattle, WA

Seattle · 1,871,155 flights
GEG 84.4%

Spokane, WA

Spokane · 205,595 flights
PSC 86.9%

Pasco/Kennewick/Richland, WA

Pasco/Kennewick/Richland · 63,750 flights
BLI 85.8%

Bellingham, WA

Bellingham · 29,229 flights
PAE 84.3%

Everett, WA

Everett · 19,411 flights
PUW 86.6%

Pullman, WA

Pullman · 4,696 flights
EAT 87.3%

Wenatchee, WA

Wenatchee · 2,841 flights
YKM 88%

Yakima, WA

Yakima · 2,733 flights

ALW delay-share reading

The standout signal at Walla Walla, WA is the delay mix: Late Aircraft owns 50.8% of 15,266 delay minutes across 4,519 BTS flights. The on-time headline is 88.8% (9.8 pts above the 79% national average), with 504 delayed and 76 cancelled (1.68%).

Delay minutes concentrate in Late Aircraft (50.8% late-aircraft, 24.5% carrier, 14.1% NAS, 10.6% weather, 0.0% security). As a quieter airport, a single late inbound can swing the month more than at a mega-hub.

On the multi-year calendar, ALW is strongest in April (97.8% on-time) and weakest in December (92.6%), a 5.2-point swing. Volume peaks in March (~124 flights/month). The busiest connecting route is to SEA (Seattle) at 88.5% on-time. Field definitions: on-time performance explained.

Statewide aggregates for Washington: Washington flight data.

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2021–2024). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Read our methodology - how this data is sourced, computed, and verified.

Using ALW's data

ALW's on-time book is stronger than most peers; the remaining risk sits in the delay mix, not a weak headline rate.

  • Check the busiest route from ALW before you book a connection. See top routes
  • Travel in April rather than December if your dates are flexible. Seasonal patterns
  • Gate-to-wheels taxi-out averages 14 min here; check the monthly series before a tight connection. Taxi times

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.