Carrier route record
NKORD→LAX
Spirit Airlines · Chicago to Los Angeles
- Flights
- 235
- Period
- July 2025 to June 2026
- Share of route
- 3%
- Carriers
- 5
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Spirit Airlines.
Spirit on ORD to LAX sits in the middle of the pack with a C−. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 235 flights. The strongest carrier on the route with a full sample, United Airlines, flew 3,380 at 76.5% on time.
The US average over the same twelve months is 77.6%, so there is little to separate Spirit on ORD to LAX from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
74.4%
Arrivals under 15 minutes late, of 227 completed flights
Avg delay
88 min
Across delayed arrivals only, not all flights
Cancelled
3.40%
National rate is 1.81%
Whole route
72.5%
Every carrier on ORD to LAX, 6,961 flights
These figures cover 235 flights between July 2025 and June 2026. Beyond the headline rate, 11.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Spirit against every carrier on ORD to LAX
Spirit flew 235 of the 6,961 flights on ORD to LAX, about 3% of it. Its 74.4% on time is 2 points better than the route as a whole, which runs 72.5%. Ranked by on-time rate it is number two of five carriers on the route, where the range runs from United at 76.5% to Delta at 60.6%. 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 76.5% of the time; American Airlines manages 68.6%. Sample sizes sit next to every figure, because a two-point gap across 3,052 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 3,380 | 76.5% | 69 min | 0.65% | B+ |
| Spirit Airlines (this page)thin sample | 235 | 74.4% | 88 min | 3.40% | C− |
| American Airlines | 3,052 | 68.6% | 75 min | 2.29% | C |
| Frontier Airlinesthin sample | 228 | 66.4% | 75 min | 4.82% | C− |
| Delta Air Linesthin sample | 66 | 60.6% | 57 min | 0.00% | D+ |
United leads American by 8 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.
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 26 points, against 8 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am60 flights88.3%
- 8am–11am1 flights—
- 11am–2pm18 flights—
- 2pm–5pm4 flights—
- 5pm–8pm103 flights62.6%
- 8pm–5am49 flights82.2%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 62.6% on time, against 88.3% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 103 flights scheduled in it.
Across the year
Spirit on ORD to LAX through the year
- Jul–Sep 2025154 flights82.5%
- Oct–Dec 202568 flights65.6%
- Jan–Mar 20266 flights—
- Apr–Jun 20267 flights—
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 74.4% on time across 235 flights.
Split by quarter, Spirit on ORD to LAX logged 154 flights in Jul–Sep 2025, 68 flights in Oct–Dec 2025, 6 flights in Jan–Mar 2026 and 7 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 74.4% annual figure is the one to use.
Across the week, Thursday is the strongest day at 81.6% on time and Sunday the weakest at 70.3%. 11 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Spirit runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 5,099 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.
- 44%Late-arriving aircraft
- 31%Carrier
- 19%National Airspace System
- 6%Extreme weather
44% 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 5,099 reported delay minutes here, that single category outweighs weather by 7 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 5,099 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 88.3% on time here.
Cancellations run at 3.40%, against 1.81% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 11.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
At 1,744 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 77.7% on time across 240 flights, 3 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 3 points of difference.
One caution: this is a thin sample. 235 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 ORD to LAX
Put together: the delay figures matter less here than the 3.40% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 227 completed flights over 12 months sit behind that.
Related
Where to go next
- ORD to LAX, every carrier
- Spirit on LAX to ORD, the return leg
- United Airlines on ORD to LAX76.5%
- American Airlines on ORD to LAX68.6%
- Frontier Airlines on ORD to LAX66.4%
- Spirit Airlines network-wide record
- Chicago O'Hare International (ORD) delay statistics
- Los Angeles International (LAX) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.