Carrier route record
WNOGG→PHX
Southwest Airlines · Kahului to Phoenix
- 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 OGG to PHX earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 19 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 35 minutes. That rests on 365 flights, with a median arrival 18 minutes early.
Set against the rest of the country, Southwest's OGG to PHX record is 19 points better than the US average of 77.3%. That gap is worth roughly 194 fewer late arrivals for every thousand flights.
Key figures
On time
96.7%
Arrivals under 15 minutes late, of 364 completed flights
Avg delay
35 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
Whole route
93.0%
Every carrier on OGG to PHX, 860 flights
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 18 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 PHX
Southwest flew 365 of the 860 flights on OGG to PHX, about 42% of it. Its 96.7% on time is 4 points better than the route as a whole, which runs 93.0%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Southwest at 96.7% to American at 90.2%.
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 |
|---|---|---|---|---|---|
| Southwest Airlines (this page) | 365 | 96.7% | 35 min | 0.27% | A+ |
| American Airlines | 495 | 90.2% | 141 min | 0.61% | A+ |
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.
The overnight block holds up unusually well at 96.7% on time across 365 flights. Red-eyes fly into empty airspace and empty gates, and they are the first rotation of the aircraft's day rather than the last. The 8pm–5am window is the busiest, with 365 flights scheduled in it.
Across the year
Southwest on OGG to PHX through the year
August is the worst month at 90.0% on time, 10 points below April, the best at 100.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. January was the busiest month here, with 31 flights.
Across the week, Monday is the strongest day at 98.1% on time and Saturday the weakest at 94.1%, a spread of 4 points.
Arrival by arrival
How late Southwest on OGG to PHX runs when it is late
Southwest on OGG to PHX often beats the schedule: 220 of 364 completed flights, 60%, arrived 15 minutes or more early. Most of the lateness is short. 6 of the 12 late arrivals were under half an hour behind, and 2 reached an hour or more. Not one arrived two hours late.
- 15+ min early220 flights60.4%
- Within 15 min132 flights36.3%
- 15–29 min late6 flights1.6%
- 30–59 min late4 flights1.1%
- 1–2 hours late2 flights0.5%
- 2+ hours late0 flights0.0%
Scale runs 0% to 100%.
Share of 364 completed flights by arrival against schedule.
Only 12 of 364 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for Southwest on OGG to PHX
The latest arrival of the period was on 6 May 2026, 1 hour 8 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 May 2026 | 1 hour 8 minutes | Carrier |
| 13 March 2026 | 1 hour 5 minutes | Carrier |
| 9 January 2026 | 54 minutes | Carrier |
| 26 May 2026 | 44 minutes | Carrier |
| 10 August 2026 | 41 minutes | Carrier |
Delay causes
Why Southwest runs late on this route
Carrier accounts for 69% of the 423 delay minutes carriers reported here, and the remaining four split what is left.
- 69%Carrier
- 26%National Airspace System
- 5%Late-arriving aircraft
The largest share of delay minutes, 69%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 291 of the 423 delay minutes reported here. The split is drawn from 423 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 0.5% 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 80.5% on time across 365 flights, 16 points below 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 OGG to PHX
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 96.7% 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 PHX, every carrier
- Southwest on PHX to OGG, the return leg
- American Airlines on OGG to PHX90.2%
- Southwest Airlines network-wide record
- Kahului Airport (OGG) delay statistics
- Phoenix Sky Harbor International (PHX) 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.