Carrier route record
WNOGG→LAS
Southwest Airlines · Kahului to Las Vegas
- Flights
- 370
- Period
- July 2025 to June 2026
- Share of route
- 50%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Southwest Airlines.
Southwest on OGG to LAS 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 77.6%. When something does go wrong the average delay runs about 45 minutes. That rests on 370 flights, with a median arrival 20 minutes early.
Set against the rest of the country, Southwest's OGG to LAS record is 19 points better than the US average of 77.6%. That gap is worth roughly 191 fewer late arrivals for every thousand flights.
Key figures
On time
96.7%
Arrivals under 15 minutes late, of 368 completed flights
Avg delay
45 min
Across delayed arrivals only, not all flights
Cancelled
0.54%
National rate is 1.81%
Whole route
89.1%
Every carrier on OGG to LAS, 735 flights
These figures cover 370 flights between July 2025 and June 2026. The median arrival is 20 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 LAS
Southwest flew 370 of the 735 flights on OGG to LAS, most of the route. Its 96.7% on time is 8 points better than the route as a whole, which runs 89.1%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Southwest at 96.7% to Hawaiian at 78.1%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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) | 370 | 96.7% | 45 min | 0.54% | A+ |
| Alaska Airlinesthin sample | 181 | 84.7% | 74 min | 0.55% | B+ |
| Hawaiian Airlinesthin sample | 184 | 78.1% | 39 min | 0.54% | B+ |
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 370 flights.
The overnight block holds up unusually well at 97.2% 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 LAS through the year
Delays peak in March, when the on-time rate falls to 82.9%. January is the strongest month at 100.0%. Moving a flexible trip across that boundary buys 17 points. March was the busiest month here, with 35 flights.
Across the week, Monday is the strongest day at 100.0% on time and Thursday the weakest at 94.2%. 6 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Southwest runs late on this route
One category carries most of the weight here. Carrier accounts for 48% of the 539 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.
- 48%Carrier
- 33%National Airspace System
- 19%Late-arriving aircraft
The largest share of delay minutes, 48%, 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 258 of the 539 delay minutes reported here. The split is drawn from 539 reported delay minutes.
33% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 179 minutes out of 539, against a national NAS share of 21%.
Cancellations are rare at 0.54%, 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 2,695 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 87.8% on time across 370 flights, 9 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 9 points of difference.
One caution: this is a thin sample. 370 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 LAS
Put together: treat all of this as provisional. 370 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. 368 completed flights over 12 months sit behind that.
Related
Where to go next
- OGG to LAS, every carrier
- Southwest on LAS to OGG, the return leg
- Alaska Airlines on OGG to LAS84.7%
- Hawaiian Airlines on OGG to LAS78.1%
- Southwest Airlines network-wide record
- Harry Reid International (LAS) delay statistics
- Worst months to fly in the US, ranked by the data
- Late aircraft, weather, or the airline: what actually causes US flight delays
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.