According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Lewiston, ID (LWS) ranks #246 of 382 tracked US airports by total flights (most flights = #1). Lewiston, ID posts top-5% on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport.
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LWS on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Delay Cause Breakdown
Top delay cause: Carrier.
Total delay minutes: 65,488.
Late Aircraft10.0% (6,572 min)
Carrier66.1% (43,282 min)
NAS (National Aviation System)3.4% (2,248 min)
Weather20.3% (13,272 min)
Security0.2% (114 min)
LWS - seasonal on-time pattern
Best: March (97%) · worst: December (93.4%)
LWS - on-time rate by year
2020–2025, year-over-year trend.
LWS - taxi-out and taxi-in (monthly)
Average taxi-out 15.4 min · taxi-in 4.8 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
LWS's average taxi-out (15.4 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 12.2 min (May 2025) to 19.7 min (January 2024).
Two PlainFlights-derived comparison paths for Lewiston, ID, both outside Idaho 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 Lewiston, ID is the delay mix: Carrier owns 66.1% of 65,488 delay minutes across 10,808 BTS flights. The on-time headline is 89.7% (10.7 pts above the 79% national average), with 1,112 delayed and 39 cancelled (0.36%).
Delay minutes concentrate in Carrier (10.0% late-aircraft, 66.1% carrier, 3.4% NAS, 20.3% weather, 0.2% security). Mid-volume books still show a clear delay fingerprint rather than a weather-only story.
On the multi-year calendar, LWS is strongest in March (97% on-time) and weakest in December (93.4%), a 3.6-point swing. Volume peaks in August (~163 flights/month). The busiest connecting route is to SLC (Salt Lake City) at 90.9% on-time. Field definitions: on-time performance explained.
Lewiston, ID vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
89.7%Top 4%higher than 96% of 382 airports
Lewiston, ID
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 (2020–2025).
Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.
LWS'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 LWS before you book a connection. See top routes →
Travel in March rather than December if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 15.4 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 Lewiston, ID's on-time rate?
Lewiston, ID (LWS) has a 89.7% on-time rate across 10,808 BTS-tracked flights (2020-2025), 10.7 pts above the 79% national flight-weighted average; that places it in roughly the top-5% on-time performance.
How does LWS rank among U.S. airports by traffic volume?
Lewiston, ID ranks #246 of 382 tracked US airports by total BTS flights (most flights = #1), making it a mid-size U.S. airport.
What's the most common cause of delays at Lewiston, ID?
Carrier is the leading delay cause at LWS, accounting for 66.1% of delay minutes. The full breakdown: 10.0% late-aircraft, 66.1% carrier, 3.4% NAS/air-traffic-control, 20.3% weather, and 0.2% security.
When is the best time to fly through Lewiston, ID?
March is historically LWS's strongest month at 97% on-time, while December is the weakest at 93.4%, a 3.6-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