According to PlainFlights' airport traffic ranking (BTS On-Time Performance total flights), Hilo, HI (ITO) ranks #123 of 382 tracked US airports by total flights (most flights = #1). Hilo, HI posts top-10% on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport.
Compare ITO to another hub, filter routes, or browse airline stats without leaving this profile.
ITO 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: 184,193.
Late Aircraft64.1% (117,984 min)
Carrier25.5% (46,924 min)
NAS (National Aviation System)7.3% (13,358 min)
Weather2.3% (4,306 min)
Security0.9% (1,621 min)
ITO - seasonal on-time pattern
Best: September (97.3%) · worst: December (91.9%)
ITO - on-time rate by year
2020–2025, year-over-year trend.
ITO - taxi-out and taxi-in (monthly)
Average taxi-out 10.1 min · taxi-in 5.2 min over the last 24 reported months (U.S. airport mean taxi-out ≈ 16.4 min).
ITO's average taxi-out (10.1 min) stays shorter than the recent U.S. airport mean (~16.4 min). Even the heaviest month (January 2024, 11.1 min) is milder than many hubs' typical book.
Two PlainFlights-derived comparison paths for Hilo, HI, both outside Hawaii 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 Hilo, HI is the delay mix: Late Aircraft owns 64.1% of 184,193 delay minutes across 72,372 BTS flights. The on-time headline is 88.2% (9.2 pts above the 79% national average), with 8,539 delayed and 538 cancelled (0.74%).
Delay minutes concentrate in Late Aircraft (64.1% late-aircraft, 25.5% carrier, 7.3% NAS, 2.3% weather, 0.9% security). As a busy airport, that mix matters more for connection planning than for a thin schedule.
On the multi-year calendar, ITO is strongest in September (97.3% on-time) and weakest in December (91.9%), a 5.4-point swing. Volume peaks in July (~1,081 flights/month). The busiest connecting route is to HNL (Honolulu) at 88.1% on-time. Field definitions: on-time performance explained.
Hilo, HI vs. the national on-time distribution
On-time rate among all 382 tracked U.S. airports
88.2%Top 9%higher than 91% of 382 airports
Hilo, HI
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.
ITO'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 ITO before you book a connection. See top routes →
Travel in September rather than December if your dates are flexible. Seasonal patterns →
Gate-to-wheels taxi-out averages 10.1 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 Hilo, HI's on-time rate?
Hilo, HI (ITO) has a 88.2% on-time rate across 72,372 BTS-tracked flights (2020-2025), 9.2 pts above the 79% national flight-weighted average; that places it in roughly the top-10% on-time performance.
How does ITO rank among U.S. airports by traffic volume?
Hilo, HI ranks #123 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 Hilo, HI?
Late Aircraft is the leading delay cause at ITO, accounting for 64.1% of delay minutes. The full breakdown: 64.1% late-aircraft, 25.5% carrier, 7.3% NAS/air-traffic-control, 2.3% weather, and 0.9% security.
When is the best time to fly through Hilo, HI?
September is historically ITO's strongest month at 97.3% on-time, while December is the weakest at 91.9%, a 5.4-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