Airports › Hawaii
Airport · 12 months to July 2026
Hilo International: delays and on-time record
Hilo, Hawaii
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Data through July 2026; this is a monthly history, not live airport status.
Reporting carriers scheduled 6,609 domestic departures from Hilo International (ITO), Hilo, in the 12 months to July 2026: about 18 a day to 3 destinations.
84.5% of those flights left the gate less than 15 minutes late, 8.4 points above the national departure figure of 76.1%. Flights arriving at ITO were on time 83.0% of the time, 7.0 points above the national arrival figure of 76.0%.
1.0% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 7.5 min.
Alaska Airlines is the largest reporting carrier at ITO with 43% of departures. Among carriers with at least 120 departures, Southwest Airlines had the highest on-time arrival share for its ITO departures (93.5%) and Alaska Airlines the lowest (74.2%).
On-time departures are down 6.0 points on the previous 12 months (90.5%).
Of the delay minutes that carriers assigned to a BTS cause category for flights leaving ITO, late-arriving aircraft 64%, air carrier 26% and national aviation system 7%.
- On time 82.8%
- Arrived 15+ minutes late 16.2%
- Cancelled 1.0%
- Diverted 0.0%
As origin and as destination, against the nation
| Measure | Departures from ITO | Arrivals at ITO | All reported flights | ITO departures, previous 12 months |
|---|---|---|---|---|
| Departed on time (less than 15 min late) | 84.5% | 84.5% | 76.1% | 90.5% |
| Arrived on time | 82.8% | 83.0% | 76.0% | 89.8% |
| Cancelled | 1.0% | 0.9% | 1.8% | 1.1% |
| Diverted | 0.0% | 0.1% | 0.3% | 0.0% |
| Average departure delay (late minutes only) | 7.5 min | 7.4 min | 17.4 min | 4.8 min |
| Arrival delay minutes per 100 flights | 829 | 794 | 1,684 | 505 |
| Scheduled flights | 6,609 | 6,611 | 7,043,858 | 6,694 |
12 months to July 2026. The first column follows flights that left ITO; the second follows flights that landed there. Year on year, on-time departures moved −6.0 pts.
Airlines at ITO
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| AS Alaska Airlines | 2,815 | 43% | 74.2% | 10.3 min | 1.7% |
| HA Hawaiian Airlines | 1,961 | 30% | 85.0% | 3.4 min | 0.3% |
| WN Southwest Airlines | 1,833 | 28% | 93.5% | -5.0 min | 0.7% |
Departures from ITO by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 82.8%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.
Busiest routes from ITO
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| ITO–HNL | Hilo to Honolulu | 6,290 | 82.5% | 4.1 min | 1.0% |
| ITO–OGG | Hilo to Kahului | 318 | 87.1% | 2.6 min | 0.0% |
| ITO–LAS | Hilo to Las Vegas | 1 | 100.0% | 14.0 min | 0.0% |
Routes with at least 10 flights a month have their own page.
Month by month
By scheduled departure hour
Among hours with at least 132 departures, 6 am to 7 am had the highest on-time share (96.4% of 720 flights) and 5 pm to 6 pm the lowest (64.7% of 329).
Delay causes
Cancellations by reported reason (66 in the period): air carrier 48%, weather 41%, national aviation system 11%, security 0%.
Checkpoint volumes
TSA publishes daily checkpoint passenger counts for the country as a whole, not for ITO on its own. The national series through September 2026 is on the checkpoint volumes page.
Questions and answers
How often do flights leave ITO on time?
84.5% of the 6,609 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 1.0% were cancelled.
How often do flights arrive at ITO on time?
83.0% of 6,611 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.
Which airline has the highest on-time share at ITO?
Counting departures from ITO and whether they reached their destination on time, Southwest Airlines had the highest share (93.5% of 1,833 flights), then Hawaiian Airlines (85.0%) and Alaska Airlines (74.2%). Carriers fly different routes at different hours, so the figures are not a like-for-like test.
What causes delays at ITO?
For departures from ITO that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: late-arriving aircraft 64%, air carrier 26%, national aviation system 7%, extreme weather 3%, security 0%.
What time of day has the highest on-time share at ITO?
Departures scheduled from 6 am to 7 am local time left on time 96.4% of the time, the highest of any hour with enough flights to compare; 5 pm to 6 pm was lowest at 64.7%.
Is it getting better?
On-time departures for the 12 months to July 2026 were 84.5%, down 6.0 points on the previous 12 months (90.5%). The monthly chart shows each of the last 36 months, and each month has its own page.
Does this page show today's delays at ITO?
No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.