Carrier route record
NKLAX→LAS
Spirit Airlines · Los Angeles to Las Vegas
- Flights
- 640
- Period
- July 2025 to June 2026
- Share of route
- 8%
- Carriers
- 8
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Spirit Airlines.
Spirit on LAX to LAS earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 640 flights. The strongest carrier on the route with a full sample, United Airlines, flew 1,572 at 83.6% on time.
Set against the rest of the country, Spirit's LAX to LAS record is 7 points better than the US average of 77.6%. That gap is worth roughly 73 fewer late arrivals for every thousand flights.
Key figures
On time
84.9%
Arrivals under 15 minutes late, of 634 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
0.94%
National rate is 1.81%
Whole route
76.5%
Every carrier on LAX to LAS, 8,319 flights
These figures cover 640 flights between July 2025 and June 2026. The median arrival is 12 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
Spirit against every carrier on LAX to LAS
Spirit flew 640 of the 8,319 flights on LAX to LAS, about 8% of it. Its 84.9% on time is 8 points better than the route as a whole, which runs 76.5%. Ranked by on-time rate it is number two of eight carriers on the route, where the range runs from SkyWest at 87.3% to Alaska at 64.7%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. United Airlines arrives on time 83.6% of the time; American Airlines manages 68.5%. Sample sizes sit next to every figure, because a two-point gap across 1,064 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlinesthin sample | 311 | 87.3% | 49 min | 1.61% | A |
| Spirit Airlines (this page) | 640 | 84.9% | 76 min | 0.94% | B+ |
| United Airlines | 1,572 | 83.6% | 58 min | 0.51% | B+ |
| Delta Air Lines | 1,735 | 78.5% | 59 min | 0.81% | B+ |
| Southwest Airlines | 2,386 | 72.2% | 53 min | 0.59% | C+ |
| Frontier Airlines | 594 | 70.0% | 79 min | 1.35% | C |
| American Airlines | 1,064 | 68.5% | 87 min | 0.85% | C+ |
| Alaska Airlinesthin sample | 17 | 64.7% | 28 min | 0.00% | D+ |
The spread between United and American is 15 points, wide enough that it should decide the booking. On a hundred trips that is 15 more arrivals inside the on-time window.
Departure window
When Spirit runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 22 points, against 15 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am121 flights95.0%
- 8am–11am199 flights86.8%
- 11am–2pm9 flights—
- 2pm–5pm133 flights87.9%
- 5pm–8pm70 flights73.5%
- 8pm–5am108 flights73.8%
Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 95.0% of the time, against 73.5% for the evening window. That is 22 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 199 flights scheduled in it.
Across the year
Spirit on LAX to LAS through the year
December is the weak month at 64.5% on time, against 94.6% in August. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. August was the busiest month here, with 93 flights.
Across the week, Wednesday is the strongest day at 90.6% on time and Thursday the weakest at 76.6%. 14 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Spirit runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 7,311 reported delay minutes.
- 42%Late-arriving aircraft
- 38%National Airspace System
- 21%Carrier
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 7,311 reported delay minutes here, that single category outweighs weather by 42 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 7,311 reported delay minutes.
38% 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 2,745 minutes out of 7,311, against a national NAS share of 21%.
Cancellations sit at 0.94% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
7.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
At 236 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 5am–8am window matters as much as it does.
The return leg runs 87.3% on time across 646 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 640 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 Spirit on LAX to LAS
Put together: treat all of this as provisional. 640 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 84.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 634 completed flights over 12 months sit behind that.
Related
Where to go next
- LAX to LAS, every carrier
- Spirit on LAS to LAX, the return leg
- SkyWest Airlines on LAX to LAS87.3%
- United Airlines on LAX to LAS83.6%
- Delta Air Lines on LAX to LAS78.5%
- Southwest Airlines on LAX to LAS72.2%
- Frontier Airlines on LAX to LAS70.0%
- American Airlines on LAX to LAS68.5%
- Spirit Airlines network-wide record
- Los Angeles International (LAX) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- Same route, different airline: where the carrier you pick matters most
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.