Route Reliability

Route reliability

Honolulu (HNL) to Hilo (ITO): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Honolulu, HI (HNL) to Hilo, HI (ITO), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Honolulu, HIHilo, HI

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

HNL to ITO

Honolulu, HI to Hilo, HI

On time
82.4%vs 75.6% U.S. average Better than average
Cancelled
1.4%vs 1.9% U.S. average Better than average
60+ min late
2.5%vs 8.1% U.S. average Better than average
Scheduled flights
6,276in 12 months3 airlines
Most reliable airline
Southwest Airlines88.3% on time · 1,822 flights

On time more often than the U.S. average, with fewer cancellations.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from HNL to ITO, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. Southwest Airlines Most reliable 88.3% 0.8% 2.1% 46 min 0.0% 1,822
2. Hawaiian Airlines 85.4% 0.3% 1.4% 33 min 0.1% 1,456
3. Alaska Airlines 77.4% 2.3% 3.2% 39 min 0.1% 2,998

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

Southwest Airlines has the strongest record on this route.

  • Southwest Airlines had the best on-time record from Honolulu (HNL) to Hilo (ITO): 88.3% of its 1,822 scheduled flights arrived within 15 minutes of schedule, compared with 77.4% for Alaska Airlines.
  • 1.4% of flights on this route were cancelled (about 1 in 71), 0.5 points lower than the U.S. average of 1.9%.
  • 2.5% of flights, about 1 in 40, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 39 min.
  • Overall, 82.4% of flights on this route arrived on time, 6.8 points higher than the U.S. average of 75.6%.
  • Over the last 3 years, September was the most reliable month on this route (93.6% on time) and January the least reliable (81.3%).
  • Cancellations peaked in August, when 3.4% of flights were cancelled.
  • Flights scheduled to depart 6 am to 7 am were the most punctual (94.4% on time); flights scheduled to depart 4 pm to 5 pm were the least (69.9%).
  • In the other direction, Hilo (ITO) to Honolulu (HNL), 81.3% of flights were on time and 1.5% were cancelled. Compare airlines ITO to HNL.

Best and worst months to fly HNL to ITO

Jan 81.3%
Feb 85.8%
Mar 84.7%
Apr 86.7%
May 84.8%
Jun 87.8%
Jul 84.4%
Aug 84.5%
Sep 93.6%
Oct 87.2%
Nov 87.7%
Dec 84.9%
Share of scheduled flights on time 12-month average 82.4%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 81.3% 1,646
February 85.8% 1,505
March 84.7% 1,617
April 86.7% 1,634
May 84.8% 1,633
June 87.8% 1,567
July 84.4% 1,625
August 84.5% 1,601
September 93.6% 1,569
October 87.2% 1,600
November 87.7% 1,580
December 84.9% 1,621
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
Southwest Airlines September (93.8%) August (84.9%)
Hawaiian Airlines September (93.5%) January (79.9%)
Alaska Airlines June (82.0%) March (70.9%)

Month by month, last 12 months

Sep 95.0%
Oct 90.7%
Nov 85.8%
Dec 78.7%
Jan 80.0%
Feb 80.7%
Mar 74.5%
Apr 81.9%
May 80.6%
Jun 83.9%
Jul 80.1%
Aug 78.1%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 95.0% 496
Oct 2025 90.7% 514
Nov 2025 85.8% 513
Dec 2025 78.7% 540
Jan 2026 80.0% 544
Feb 2026 80.7% 493
Mar 2026 74.5% 529
Apr 2026 81.9% 548
May 2026 80.6% 542
Jun 2026 83.9% 523
Jul 2026 80.1% 518
Aug 2026 78.1% 516

Best and worst departure times

<6a Insufficient sample
6a 94.4%
7a 91.2%
8a 92.0%
9a 83.4%
10a 84.4%
11a 77.0%
12p 72.1%
1p 79.1%
2p 70.7%
3p 70.3%
4p 69.9%
5p 82.5%
6p 74.8%
7p 77.3%
8p 85.9%
9p 81.3%
Share of scheduled flights on time
By scheduled local departure hour at HNL, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing before 6 am Insufficient sample 2
Departing 6 am to 7 am 94.4% 699
Departing 7 am to 8 am 91.2% 441
Departing 8 am to 9 am 92.0% 724
Departing 9 am to 10 am 83.4% 199
Departing 10 am to 11 am 84.4% 314
Departing 11 am to noon 77.0% 100
Departing noon to 1 pm 72.1% 366
Departing 1 pm to 2 pm 79.1% 728
Departing 2 pm to 3 pm 70.7% 147
Departing 3 pm to 4 pm 70.3% 360
Departing 4 pm to 5 pm 69.9% 359
Departing 5 pm to 6 pm 82.5% 458
Departing 6 pm to 7 pm 74.8% 294
Departing 7 pm to 8 pm 77.3% 365
Departing 8 pm to 9 pm 85.9% 447
Departing 9 pm to 10 pm 81.3% 273
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from Honolulu, HI (HNL) to Hilo, HI (ITO), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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