Carrier route record
WNOGG→KOA
Southwest Airlines · Kahului to Kailua-Kona
- Flights
- 365
- Period
- September 2025 to August 2026
- Share of route
- 25%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Southwest Airlines.
Southwest on OGG to KOA earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 365 flights. The strongest carrier on the route with a full sample, Hawaiian Airlines, flew 366 at 81.6% on time.
Set against the rest of the country, Southwest's OGG to KOA record is 10 points better than the US average of 77.3%. That gap is worth roughly 101 fewer late arrivals for every thousand flights.
Key figures
On time
87.4%
Arrivals under 15 minutes late, of 364 completed flights
Avg delay
44 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
Whole route
79.7%
Every carrier on OGG to KOA, 1,460 flights
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
Southwest against every carrier on OGG to KOA
Southwest flew 365 of the 1,460 flights on OGG to KOA, about 25% of it. Its 87.4% on time is 8 points better than the route as a whole, which runs 79.7%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Southwest at 87.4% to Alaska at 74.9%.
The choice of carrier is not cosmetic here. Hawaiian Airlines arrives on time 81.6% of the time; Alaska Airlines manages 74.9%. Sample sizes sit next to every figure, because a two-point gap across 729 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines (this page) | 365 | 87.4% | 44 min | 0.27% | A+ |
| Hawaiian Airlines | 366 | 81.6% | 40 min | 0.27% | B+ |
| Alaska Airlines | 729 | 74.9% | 47 min | 0.41% | C+ |
Hawaiian leads Alaska by 7 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When Southwest runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 365 flights.
- 5am–8am—
- 8am–11am—
- 11am–2pm32 flights83.9%
- 2pm–5pm333 flights87.7%
- 5pm–8pm—
- 8pm–5am—
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
The 2pm–5pm window is the strongest at 87.7% on time. The full set of windows spans 4 points.
Across the year
Southwest on OGG to KOA through the year
November is the best month on the calendar at 96.7% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. January was the busiest month here, with 31 flights.
Across the week, Tuesday is the strongest day at 96.2% on time and Saturday the weakest at 74.5%, a spread of 22 points.
Arrival by arrival
How late Southwest on OGG to KOA runs when it is late
Most of the lateness is short. 24 of the 46 late arrivals were under half an hour behind, and 11 reached an hour or more.
- 15+ min early40 flights11.0%
- Within 15 min278 flights76.4%
- 15–29 min late24 flights6.6%
- 30–59 min late11 flights3.0%
- 1–2 hours late10 flights2.7%
- 2+ hours late1 flights0.3%
Scale runs 0% to 100%.
Share of 364 completed flights by arrival against schedule.
13 of 52 late departures made up the time and arrived on time, 25% of them. Only 7 left on time and still arrived late.
The worst days
Worst days for Southwest on OGG to KOA
The latest arrival of the period was on 24 April 2026, 3 hours behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in October 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 24 April 2026 | 3 hours | Late-arriving aircraft |
| 20 December 2025 | 1 hour 50 minutes | Late-arriving aircraft |
| 9 October 2025 | 1 hour 46 minutes | Late-arriving aircraft |
| 13 October 2025 | 1 hour 45 minutes | Late-arriving aircraft |
| 12 October 2025 | 1 hour 23 minutes | Late-arriving aircraft |
Delay causes
Why Southwest runs late on this route
Late-arriving aircraft accounts for 71% of the 2,003 delay minutes carriers reported here, and the remaining four split what is left.
- 71%Late-arriving aircraft
- 17%Carrier
- 12%National Airspace System
71% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,003 reported delay minutes here, that single category outweighs weather by 71 to one. The split is drawn from 2,003 reported delay minutes.
Cancellations are rare at 0.27%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 3.0% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 84 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 2pm–5pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 91.8% on time across 365 flights, 4 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 4 points of difference.
One caution: this is a thin sample. 365 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Southwest on OGG to KOA
Put together: treat all of this as provisional. 365 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 87.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 364 completed flights over 12 months sit behind that.
Related
Where to go next
- OGG to KOA, every carrier
- Southwest on KOA to OGG, the return leg
- Hawaiian Airlines on OGG to KOA81.6%
- Alaska Airlines on OGG to KOA74.9%
- Southwest Airlines network-wide record
- Kahului Airport (OGG) delay statistics
- Hawaii inter-island flights: how reliable is island hopping?
- Why the first flight of the morning is statistically safest
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.