Route profile
MIA→IND
Flight reliability, delays and best times to fly from Miami to Indianapolis, 1,020 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 12% of comparable major US routes (4,598 compared)
Calculated from 2,699 flights. How this is calculated · What counts as on time
MIA → IND arrives on time 69.1% of the time; the return trip, IND → MIA, arrives on time 77.4% of the time, an 8.3-point gap between the two directions of the same city pair.
MIA → IND spends 29.7 minutes on the ground on a 1,020-mile trip: 21.3 minutes from pushback to wheels-up at MIA and 8.3 minutes from touchdown to gate at IND.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
The airline matters unusually much on this route, a wider carrier-to-carrier gap than 99% of 2,692 comparable routes.
Envoy Air arrived on time 84.7% of the time, against 56.0% for Southwest Airlines, flying the exact same route.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 2,692 in the comparison.
What sets this route apart
Where MIA to IND differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
MIA to IND struggles most at 3 PM: 63.7% of its flights scheduled then arrive on time, 6.5 points behind the 70.2% on routes of similar length at the same hour. Against all other routes the gap is 9 points.
Tuesday is the day MIA to IND slips furthest against routes of similar length, 70.8% on time where they average 80.5%, 9.7 points lower. Against all other routes the gap is 10.8 points.
In February, MIA to IND runs 15 points below routes of similar length, 65.6% on time to 80.6%. Against all other routes the gap is 15.9 points.
American Airlines’ flights on MIA to IND arrive on time 66.5% of the time, 7.4 points below the 73.9% it manages on its routes of similar length. Against all other routes the gap is 8.6 points.
MIA to IND against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 3 PM departures | 63.7% | routes of similar length | 70.2% | −6.5 pts | 512 here, 176,086 there |
| Weekday: Tuesday | 70.8% | routes of similar length | 80.5% | −9.7 pts | 349 here, 389,005 there |
| Month: February | 65.6% | routes of similar length | 80.6% | −15.0 pts | 247 here, 213,450 there |
| Airline: American Airlines | 66.5% | routes of similar length | 73.9% | −7.4 pts | 1,920 here, 562,959 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,020 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
When it goes wrong
July 2023 – July 2026
65 min late
against a median of 2 min early
MIA → IND has an average that understates its risk: a typical arrival is 2 min early, but the worst tenth are 67 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 2,699 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at IND after arriving from MIA.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 47% | Likely to miss |
| 45 min | 30% | High risk |
| 60 min | 20% | High risk |
| 90 min | 11% | Some risk |
| 120 min | 6.3% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.30% of the time and diverts 0.37% of the time, which a late arrival never shows up in.
Chance of missing is the share of 2,654 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 65 minutes late (90th-percentile gate arrival delay), over 2,699 operations.
Any other layover length: connection checker.
Best time to fly
MIA → IND flights departing 5–9 AM arrived on time 89.8% of the time, against 62.8% for 9 PM–5 AM departures, a gap of 27.0 percentage points.
By departure window
By departure hour
- 12 AM to 6 AM: too few flights to score
- 7 AM: 91.3% on time from 128 flights
- 8 AM: 90.8% on time from 198 flights
- 9 AM to 12 PM: too few flights to score
- 1 PM: 77.3% on time from 259 flights
- 2 PM: 69.8% on time from 182 flights
- 3 PM: 63.7% on time from 521 flights
- 4 PM to 6 PM: too few flights to score
- 7 PM: 64.5% on time from 185 flights
- 8 PM: 67.8% on time from 335 flights
- 9 PM: 62.8% on time from 753 flights
- 10 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why MIA → IND runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for MIA → IND. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on MIA → IND, at 44.8%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 89.8% of the time and 9 PM–5 AM departures 62.8%.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| American Airlines | 1,957 | 66.5% | 1.53% | -1 min | 13.0% |
| Envoy Air | 442 | 84.7% | 0.68% | -7 min | 3.0% |
| Southwest Airlines | 219 | 56.0% | 0.91% | 10 min | 15.7% |
American Airlines flew 74.8% of the 2,618 flights listed.
Envoy Air arrived on time 28.7 percentage points more often than Southwest Airlines on this route.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 11.1 percentage points.
By month
- Jan: 73.6%
- Feb: 65.6%
- Mar: 61.2%
- Apr: 77.3%
- May: 60.8%
- Jun: 59.4%
- Jul: 59.6%
- Aug: 62.8%
- Sep: 76.3%
- Oct: 81.4%
- Nov: 83.9%
- Dec: 70.1%
June is historically the weakest month and November the strongest, a spread of 24.5 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: too few flights to score (63)
- August 2023: too few flights to score (62)
- September 2023: too few flights to score (60)
- October 2023: too few flights to score (62)
- November 2023: too few flights to score (59)
- December 2023: too few flights to score (61)
- January 2024: too few flights to score (69)
- February 2024: too few flights to score (62)
- March 2024: too few flights to score (85)
- April 2024: too few flights to score (67)
- May 2024: too few flights to score (62)
- June 2024: too few flights to score (53)
- July 2024: too few flights to score (52)
- August 2024: too few flights to score (61)
- September 2024: too few flights to score (60)
- October 2024: too few flights to score (62)
- November 2024: too few flights to score (82)
- December 2024: too few flights to score (92)
- January 2025: too few flights to score (103)
- February 2025: too few flights to score (100)
- March 2025: 58.4% from 126 flights
- April 2025: too few flights to score (74)
- May 2025: too few flights to score (66)
- June 2025: too few flights to score (60)
- July 2025: too few flights to score (62)
- August 2025: too few flights to score (62)
- September 2025: too few flights to score (53)
- October 2025: too few flights to score (56)
- November 2025: too few flights to score (84)
- December 2025: too few flights to score (88)
- January 2026: 77.8% from 123 flights
- February 2026: too few flights to score (86)
- March 2026: too few flights to score (88)
- April 2026: too few flights to score (83)
- May 2026: too few flights to score (84)
- June 2026: too few flights to score (62)
- July 2026: too few flights to score (65)
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 72.5% against 69.0% in the 12 months before — improving by 3.5 percentage points.
Data and methodology
Calculated by FlyerIntel from 2,699 MIA → IND flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed