Carrier route record

YXDTW→IND

Republic Airways · Detroit to Indianapolis

Flights: 192
Period: July 2025 to June 2026
Share of route: 20%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Republic Airways.

Republic on DTW to IND lands a B, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 192 flights, with a median arrival 5 minutes early.

Set against the rest of the country, Republic's DTW to IND record is 6 points better than the US average of 77.6%. That gap is worth roughly 60 fewer late arrivals for every thousand flights.

On time

83.6%

Arrivals under 15 minutes late, of 189 completed flights

Avg delay

64 min

Across delayed arrivals only, not all flights

Cancelled

1.56%

National rate is 1.81%

Whole route

78.4%

Every carrier on DTW to IND, 981 flights

These figures cover 192 flights between July 2025 and June 2026. The median arrival is 5 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

Republic against every carrier on DTW to IND

Republic flew 192 of the 981 flights on DTW to IND, about 20% of it. Its 83.6% on time is 5 points better than the route as a whole, which runs 78.4%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Republic at 83.6% to SkyWest at 77.1%. One 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 DTW to IND
Airline	Flights	On time	Avg delay	Cancelled	Grade
Republic Airways (this page)thin sample	192	83.6%	64 min	1.56%	B
Delta Air Linesthin sample	60	78.3%	60 min	0.00%	B+
SkyWest Airlines	729	77.1%	87 min	1.23%	B

Departure window

When Republic 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 192 flights.

5am–8am—
8am–11am92 flights82.0%
11am–2pm—
2pm–5pm76 flights85.5%
5pm–8pm24 flights—
8pm–5am—

Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.

The 2pm–5pm window is the strongest at 85.5% on time. The full set of windows spans 4 points.

Across the year

Republic on DTW to IND through the year

Jul–Sep 202524 flights—
Oct–Dec 202558 flights76.4%
Jan–Mar 202629 flights—
Apr–Jun 202681 flights87.7%

Scale runs 70% to 95%. 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 83.6% on time across 192 flights.

Split by quarter, Republic on DTW to IND logged 24 flights in Jul–Sep 2025, 58 flights in Oct–Dec 2025, 29 flights in Jan–Mar 2026 and 81 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 83.6% annual figure is the one to use.

Across the week, Tuesday is the strongest day at 93.3% on time and Sunday the weakest at 73.3%. 20 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Republic 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 1,990 reported delay minutes.

Carrier
42%
Late-arriving aircraft
28%
National Airspace System
21%
Extreme weather
9%

The largest share of delay minutes, 42%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 832 of the 1,990 delay minutes reported here. The split is drawn from 1,990 reported delay minutes.

Cancellations sit at 1.56% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

6.9% 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 about an hour, which a normal layover absorbs.

At 231 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 2pm–5pm window matters as much as it does.

The return leg runs 82.0% on time across 191 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. 192 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 Republic on DTW to IND

Put together: treat all of this as provisional. 192 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 83.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 189 completed flights over 12 months sit behind that.

Where to go next

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.

Key figures