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.
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ALW on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Delay Cause Breakdown
Top delay cause: Late Aircraft.
Total delay minutes: 15,266.
Late Aircraft50.8% (7,755 min)
Carrier24.5% (3,736 min)
NAS (National Aviation System)14.1% (2,157 min)
Weather10.6% (1,618 min)
Security0.0% (0 min)
ALW - seasonal on-time pattern
Best: April (97.8%) · worst: December (92.6%)
ALW - on-time rate by year
2021–2024, year-over-year trend.
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).
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).
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.
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.
Walla Walla, WA vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
88.8%Top 7%higher than 93% of 382 airports
Walla Walla, WA
60%95%
U.S. airports by on-time rate, bucketed by value
Each bar is a band; taller bars hold more airports. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
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.
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.
Frequently Asked Questions
What is Walla Walla, WA's on-time rate?
Walla Walla, WA (ALW) has a 88.8% on-time rate across 4,519 BTS-tracked flights (2021-2024), 9.8 pts above the 79% national flight-weighted average; that places it in roughly the top-10% on-time performance.
How does ALW rank among U.S. airports by traffic volume?
Walla Walla, WA ranks #332 of 382 tracked US airports by total BTS flights (most flights = #1), making it a smaller regional airport.
What's the most common cause of delays at Walla Walla, WA?
Late Aircraft is the leading delay cause at ALW, accounting for 50.8% of delay minutes. The full breakdown: 50.8% late-aircraft, 24.5% carrier, 14.1% NAS/air-traffic-control, 10.6% weather, and 0.0% security.
When is the best time to fly through Walla Walla, WA?
April is historically ALW's strongest month at 97.8% on-time, while December is the weakest at 92.6%, a 5.2-point swing across the BTS historical record.
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