According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Boise, ID (BOI) ranks #58 of 382 tracked US airports by total flights (most flights = #1). Boise, ID posts above-median on-time performance among the 382 tracked U.S. airports, as a high-volume U.S. airport.
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BOI on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Volume vs. on-time rate
Where Boise, ID sits on volume vs. on-time rate
Among the 382 U.S. airports in the BTS corpus, Boise, ID handles more flight
volume than 85% of them, and has a higher on-time rate than
69% of them, placing it in the quadrant for busy and reliable.
Flight volume and on-time rate are independent figures: a busy airport can still run
reliably, and a quiet one can still run late.
Boise, ID vs. a 29-airport national peer sample, volume percentile vs. on-time-rate percentile.
Total flights (2020-2025): 266,753 ·
On-time rate: 85.2%
Delay Cause Breakdown
Top delay cause: Carrier.
Total delay minutes1,260,417 min
Carrier521,109 min · 41%
Late Aircraft419,979 min · 33%
NAS (National Aviation System)240,735 min · 19%
Weather76,290 min · 6%
Security2,304 min · 0%
Source: U.S. DOT Bureau of Transportation Statistics, On-Time Performance
BOI - seasonal on-time pattern
Best: October (94.8%) · worst: December (91.5%)
BOI - on-time rate by year
2020–2025, year-over-year trend.
BOI - taxi-out and taxi-in (monthly)
Average taxi-out 16.8 min · taxi-in 5.1 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
BOI's average taxi-out (16.8 min) sits near the recent U.S. airport mean (~16.4 min). Month-to-month, it swings from 14.7 min (May 2024) to 22.4 min (January 2024).
Two PlainFlights-derived comparison paths for Boise, 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 Boise, ID is the delay mix: Carrier owns 41.3% of 1,260,417 delay minutes across 266,753 BTS flights. The on-time headline is 85.2% (6.2 pts above the 79% national average), with 39,406 delayed and 1,457 cancelled (0.55%).
Delay minutes concentrate in Carrier (33.3% late-aircraft, 41.3% carrier, 19.1% NAS, 6.1% weather, 0.2% security). As a busy airport, that mix matters more for connection planning than for a thin schedule.
On the multi-year calendar, BOI is strongest in October (94.8% on-time) and weakest in December (91.5%), a 3.3-point swing. Volume peaks in August (~4,046 flights/month). The busiest connecting route is to SEA (Seattle) at 86% on-time. Field definitions: on-time performance explained.
Boise, ID vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
85.2%Top 31%higher than 69% of 382 airports
Boise, 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.
BOI'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 BOI before you book a connection. See top routes →
Travel in October rather than December if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 16.8 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 Boise, ID's on-time rate?
Boise, ID (BOI) has a 85.2% on-time rate across 266,753 BTS-tracked flights (2020-2025), 6.2 pts above the 79% national flight-weighted average; that places it in roughly the above-median on-time performance.
How does BOI rank among U.S. airports by traffic volume?
Boise, ID ranks #58 of 382 tracked US airports by total BTS flights (most flights = #1), making it a high-volume U.S. airport.
What's the most common cause of delays at Boise, ID?
Carrier is the leading delay cause at BOI, accounting for 41.3% of delay minutes. The full breakdown: 33.3% late-aircraft, 41.3% carrier, 19.1% NAS/air-traffic-control, 6.1% weather, and 0.2% security.
When is the best time to fly through Boise, ID?
October is historically BOI's strongest month at 94.8% on-time, while December is the weakest at 91.5%, a 3.3-point swing across the BTS historical record.