Carrier route record

WNOGG→PHX

Southwest Airlines · Kahului to Phoenix

Flights: 365
Period: July 2025 to June 2026
Share of route: 44%
Carriers: 2

Historical statistics for July 2025 to June 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 20 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 40 minutes. That rests on 365 flights, with a median arrival 19 minutes early.

Set against the rest of the country, Southwest's OGG to PHX record is 20 points better than the US average of 77.6%. That gap is worth roughly 197 fewer late arrivals for every thousand flights.

On time

97.3%

Arrivals under 15 minutes late, of 364 completed flights

Avg delay

42 min

Across delayed arrivals only, not all flights

Cancelled

0.27%

National rate is 1.81%

Whole route

94.3%

Every carrier on OGG to PHX, 825 flights

These figures cover 365 flights between July 2025 and June 2026. The median arrival is 19 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.

Carrier by carrier

Southwest against every carrier on OGG to PHX

Southwest flew 365 of the 825 flights on OGG to PHX, about 44% of it. Its 97.3% on time is 3 points better than the route as a whole, which runs 94.3%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from Southwest at 97.3% to American at 91.9%.

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.

On-time performance by carrier on OGG to PHX
Airline	Flights	On time	Avg delay	Cancelled	Grade
Southwest Airlines (this page)	365	97.3%	42 min	0.27%	A+
American Airlines	460	91.9%	169 min	0.43%	A+

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 97.3% 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

Darker means more delays. Figures are on-time percentages.April best, March worst

April 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.

The day of the week is close to irrelevant here: 4 points separates the best day from the worst. Weekly demand peaks are not what drives the delays on this operation.

Delay causes

Why Southwest runs late on this route

One category carries most of the weight here. Carrier accounts for 61% of the 419 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
61%
Late-arriving aircraft
22%
National Airspace System
16%

The largest share of delay minutes, 61%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 257 of the 419 delay minutes reported here. The split is drawn from 419 reported delay minutes.

Cancellations are rare at 0.27%, below the national 1.81% 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 0.8% land an hour or more behind schedule, against 8.1% 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 80.8% on time across 365 flights, 17 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 17 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 97.3% 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.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures