Carrier route record
WNPHX→OGG
Southwest Airlines · Phoenix to Kahului
- Flights
- 365
- Period
- September 2025 to August 2026
- Share of route
- 42%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Southwest Airlines.
Southwest on PHX to OGG lands a B+, 3 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 45 minutes on average. That rests on 365 flights, with a median arrival 6 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate Southwest on PHX to OGG from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
80.5%
Arrivals under 15 minutes late, of 365 completed flights
Avg delay
43 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.89%
Whole route
83.2%
Every carrier on PHX to OGG, 860 flights
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 6 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 PHX to OGG
Southwest flew 365 of the 860 flights on PHX to OGG, about 42% of it. Its 80.5% on time is 3 points worse than the route as a whole, which runs 83.2%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from American at 85.2% to Southwest at 80.5%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 495 | 85.2% | 53 min | 0.61% | A+ |
| Southwest Airlines (this page) | 365 | 80.5% | 43 min | 0.00% | B+ |
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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.
There are not enough flights in each departure window to split Southwest's PHX to OGG record by time of day without the percentages moving on noise. The headline rate of 80.5% is the reliable figure here.
Across the year
Southwest on PHX to OGG through the year
November is the best month on the calendar at 100.0% 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 90.4% on time and Thursday the weakest at 75.0%, a spread of 15 points.
Arrival by arrival
How late Southwest on PHX to OGG runs when it is late
Southwest on PHX to OGG often beats the schedule: 129 of 365 completed flights, 35%, arrived 15 minutes or more early. Most of the lateness is short. 38 of the 71 late arrivals were under half an hour behind, and 11 reached an hour or more.
- 15+ min early129 flights35.3%
- Within 15 min165 flights45.2%
- 15–29 min late38 flights10.4%
- 30–59 min late22 flights6.0%
- 1–2 hours late6 flights1.6%
- 2+ hours late5 flights1.4%
Scale runs 0% to 100%.
Share of 365 completed flights by arrival against schedule.
18 of 62 late departures made up the time and arrived on time, 29% of them. In the other direction, 27 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at OGG.
The worst days
Worst days for Southwest on PHX to OGG
The latest arrival of the period was on 4 June 2026, 4 hours 33 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 4 June 2026 | 4 hours 33 minutes | Carrier |
| 2 April 2026 | 3 hours 32 minutes | Carrier |
| 19 April 2026 | 2 hours 27 minutes | Late-arriving aircraft |
| 19 July 2026 | 2 hours 2 minutes | Carrier |
| 9 October 2025 | 2 hours 1 minute | Carrier |
Delay causes
Why Southwest runs late on this route
Carrier accounts for 61% of the 3,034 delay minutes carriers reported here, and the remaining four split what is left.
- 61%Carrier
- 27%National Airspace System
- 12%Late-arriving aircraft
The largest share of delay minutes, 61%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,859 of the 3,034 delay minutes reported here. The split is drawn from 3,034 reported delay minutes.
Cancellations are rare at 0.00%, below the national 1.89% and low enough to earn the plus on the grade. Almost no flights are 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 2,844 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg is a different operation and performs like one: it runs 96.7% on time across 365 flights, 16 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 16 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 PHX to OGG
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 80.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 365 completed flights over 12 months sit behind that.
Related
Where to go next
- PHX to OGG, every carrier
- Southwest on OGG to PHX, the return leg
- American Airlines on PHX to OGG85.2%
- Southwest Airlines network-wide record
- Phoenix Sky Harbor International (PHX) delay statistics
- Kahului Airport (OGG) delay statistics
- Worst months to fly in the US, ranked by the data
- How to read this site: grades, sample sizes, and honest caveats
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.