Carrier route record
DLLAX→IND
Delta Air Lines · Los Angeles to Indianapolis
- Flights
- 333
- Period
- September 2025 to August 2026
- Share of route
- 38%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Delta Air Lines.
Delta on LAX to IND earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 333 flights, with a median arrival 10 minutes early.
Set against the rest of the country, Delta's LAX to IND record is 15 points better than the US average of 77.3%. That gap is worth roughly 145 fewer late arrivals for every thousand flights.
Key figures
On time
91.8%
Arrivals under 15 minutes late, of 329 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
0.60%
National rate is 1.89%
Whole route
80.2%
Every carrier on LAX to IND, 866 flights
These figures cover 333 flights between September 2025 and August 2026. The median arrival is 10 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
Delta against every carrier on LAX to IND
Delta flew 333 of the 866 flights on LAX to IND, about 38% of it. Its 91.8% on time is 12 points better than the route as a whole, which runs 80.2%. Ranked by on-time rate it is first of four carriers on the route, where the range runs from Delta at 91.8% to Southwest at 50.0%. 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 |
|---|---|---|---|---|---|
| Delta Air Lines (this page)thin sample | 333 | 91.8% | 60 min | 0.60% | A+ |
| Spirit Airlinesthin sample | 18 | 83.3% | 93 min | 0.00% | B+ |
| American Airlines | 507 | 73.0% | 97 min | 0.59% | C+ |
| Southwest Airlinesthin sample | 8 | 50.0% | 77 min | 0.00% | F+ |
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Departure window
When Delta 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 333 flights.
There are not enough flights in each departure window to split Delta's LAX to IND record by time of day without the percentages moving on noise. The headline rate of 91.8% is the reliable figure here.
Across the year
Delta on LAX to IND through the year
- Jul–Sep 202527 flights—
- Oct–Dec 202577 flights92.0%
- Jan–Mar 202688 flights90.8%
- Apr–Jun 202688 flights92.0%
- Jul–Sep 202653 flights92.3%
Scale runs 80% to 100%. 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 91.8% on time across 333 flights.
Quarter by quarter Delta on LAX to IND held fairly steady: 92.0% in Oct–Dec 2025, 90.8% in Jan–Mar 2026, 92.0% in Apr–Jun 2026 and 92.3% in Jul–Sep 2026. A spread of 2 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
Across the week, Wednesday is the strongest day at 94.2% on time and Sunday the weakest at 88.0%, a spread of 6 points.
Arrival by arrival
How late Delta on LAX to IND runs when it is late
Delta on LAX to IND often beats the schedule: 118 of 329 completed flights, 36%, arrived 15 minutes or more early. The 27 late arrivals split 6 under half an hour, 12 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early118 flights35.9%
- Within 15 min184 flights55.9%
- 15–29 min late6 flights1.8%
- 30–59 min late12 flights3.6%
- 1–2 hours late5 flights1.5%
- 2+ hours late4 flights1.2%
Scale runs 0% to 100%.
Share of 329 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 20 departures that left 15 minutes late or more, only 2 made it up before arrival. 9 flights left on time and still arrived late.
The worst days
Worst days for Delta on LAX to IND
The latest arrival of the period was on 8 December 2025, 3 hours 33 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 December 2025 | 3 hours 33 minutes | Carrier |
| 25 May 2026 | 2 hours 24 minutes | Late-arriving aircraft |
| 18 February 2026 | 2 hours 8 minutes | Carrier |
| 9 July 2026 | 2 hours 1 minute | Carrier |
| 12 October 2025 | 1 hour 55 minutes | Late-arriving aircraft |
Delay causes
Why Delta runs late on this route
Carrier accounts for 58% of the 1,616 delay minutes carriers reported here, and the remaining four split what is left.
- 58%Carrier
- 23%Late-arriving aircraft
- 19%National Airspace System
The largest share of delay minutes, 58%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 936 of the 1,616 delay minutes reported here. The split is drawn from 1,616 reported delay minutes.
Cancellations are rare at 0.60%, 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 2.7% 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 1,814 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 86.1% on time across 333 flights, 6 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 6 points of difference.
One caution: this is a thin sample. 333 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 Delta on LAX to IND
Put together: treat all of this as provisional. 333 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 91.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 329 completed flights over 12 months sit behind that.
Related
Where to go next
- LAX to IND, every carrier
- Delta on IND to LAX, the return leg
- American Airlines on LAX to IND73.0%
- Delta Air Lines network-wide record
- Los Angeles International (LAX) delay statistics
- Indianapolis International (IND) delay statistics
- How to read this site: grades, sample sizes, and honest caveats
- The best time of day to fly, according to 7.05 million flight records
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.