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DelayAtlas

Carrier route record

AALAX→IND

American Airlines · Los Angeles to Indianapolis

Flights
507
Period
September 2025 to August 2026
Share of route
59%
Carriers
4
C+GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.

American on LAX to IND sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 507 flights, with a median arrival 5 minutes early.

The national on-time rate over the same period is 77.3%, so American on LAX to IND runs 4 points behind the country as a whole. Across a thousand flights that is about 43 extra late arrivals.

Key figures

On time

73.0%

Arrivals under 15 minutes late, of 503 completed flights

Avg delay

97 min

Across delayed arrivals only, not all flights

Cancelled

0.59%

National rate is 1.89%

Whole route

80.2%

Every carrier on LAX to IND, 866 flights

These figures cover 507 flights between September 2025 and August 2026. Beyond the headline rate, 13.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

American against every carrier on LAX to IND

American flew 507 of the 866 flights on LAX to IND, most of the route. Its 73.0% on time is 7 points worse than the route as a whole, which runs 80.2%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Delta at 91.8% to Southwest at 50.0%. Three 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.

On-time performance by carrier on LAX to IND
AirlineFlightsOn timeAvg delayCancelledGrade
Delta Air Linesthin sample33391.8%60 min0.60%A+
Spirit Airlinesthin sample1883.3%93 min0.00%B+
American Airlines (this page)50773.0%97 min0.59%C+
Southwest Airlinesthin sample850.0%77 min0.00%F+

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When American runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 28 points, against half a point between the best and worst carrier.

  • 5am–8am—
  • 8am–11am334 flights76.4%
  • 11am–2pm21 flights—
  • 2pm–5pm1 flights—
  • 5pm–8pm106 flights55.7%
  • 8pm–5am45 flights84.1%

Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 55.7% on time, against 84.1% for the 8pm–5am 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 8am–11am window is the busiest, with 334 flights scheduled in it.

Across the year

American on LAX to IND through the year

On-time rate by calendar month79J78F74M72A65M72J64J77A—S73O79N81D
Darker means more delays. Figures are on-time percentages.December best, July worst

July is the worst month at 64.3% on time, 17 points below December, the best at 81.1%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 56 flights.

Across the week, Friday is the strongest day at 84.1% on time and Saturday the weakest at 60.0%, a spread of 24 points.

On-time rate by day of the week68.3Mon75.9Tue77.4Wed66.7Thu84.1Fri60.0Sat78.0Sun
Monday: 68.3 percent on time. Tuesday: 75.9 percent on time. Wednesday: 77.4 percent on time. Thursday: 66.7 percent on time. Friday: 84.1 percent on time. Saturday: 60.0 percent on time. Sunday: 78.0 percent on time

Arrival by arrival

How late American on LAX to IND runs when it is late

American on LAX to IND often beats the schedule: 175 of 503 completed flights, 35%, arrived 15 minutes or more early. The 136 late arrivals split 34 under half an hour, 35 between 30 and 60 minutes, and 67 an hour or more.

  • 15+ min early175 flights34.8%
  • Within 15 min192 flights38.2%
  • 15–29 min late34 flights6.8%
  • 30–59 min late35 flights7.0%
  • 1–2 hours late32 flights6.4%
  • 2+ hours late35 flights7.0%

Scale runs 0% to 100%.

Share of 503 completed flights by arrival against schedule.

40 of 155 late departures made up the time and arrived on time, 26% of them. 21 flights left on time and still arrived late.

The worst days

Worst days for American on LAX to IND

The latest arrival of the period was on 21 March 2026, 9 hours 28 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.

The latest arrivals of American on LAX to IND in the period
DateArrived late byLargest filed cause
21 March 20269 hours 28 minutesLate-arriving aircraft
18 September 20258 hours 20 minutesLate-arriving aircraft
20 September 20257 hours 15 minutesLate-arriving aircraft
9 February 20265 hours 56 minutesLate-arriving aircraft
3 June 20265 hours 54 minutesCarrier

Delay causes

Why American runs late on this route

Late-arriving aircraft accounts for 75% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    75%
  • Carrier
    20%
  • National Airspace System
    6%

75% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 13,000 reported delay minutes here, that single category outweighs weather by 75 to one. The split is drawn from 13,126 reported delay minutes.

Cancellations are rare at 0.59%, 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

13.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

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 83.1% on time across 507 flights, 10 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 10 points of difference.

One caution: this is a thin sample. 507 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 American on LAX to IND

Put together: treat all of this as provisional. 507 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 73.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 503 completed flights over 12 months sit behind that.

Related

Where to go next

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.