Carrier route record
YXCMH→DTW
Republic Airways · Columbus to Detroit
- Flights
- 916
- Period
- September 2025 to August 2026
- Share of route
- 61%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Republic Airways.
Republic on CMH to DTW 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 12 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 916 flights, with a median arrival 13 minutes early.
Set against the rest of the country, Republic's CMH to DTW record is 12 points better than the US average of 77.3%. That gap is worth roughly 124 fewer late arrivals for every thousand flights.
Key figures
On time
89.7%
Arrivals under 15 minutes late, of 913 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
0.33%
National rate is 1.89%
Whole route
85.6%
Every carrier on CMH to DTW, 1,508 flights
These figures cover 916 flights between September 2025 and August 2026. The median arrival is 13 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
Republic against every carrier on CMH to DTW
Republic flew 916 of the 1,508 flights on CMH to DTW, most of the route. Its 89.7% on time is 4 points better than the route as a whole, which runs 85.6%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Republic at 89.7% to Delta at 60.0%. 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Republic Airways (this page) | 916 | 89.7% | 69 min | 0.33% | A+ |
| SkyWest Airlines | 587 | 79.4% | 105 min | 1.53% | B |
| Delta Air Linesthin sample | 5 | 60.0% | 52 min | 0.00% | D+ |
Flight by flight
Republic flight numbers on CMH to DTW
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 Republic runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 16 points, against half a point between the best and worst carrier.
- 5am–8am145 flights93.8%
- 8am–11am356 flights93.8%
- 11am–2pm157 flights88.5%
- 2pm–5pm134 flights86.6%
- 5pm–8pm124 flights78.2%
- 8pm–5am—
Scale runs 70% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 93.8% of the time, against 78.2% for the evening window. That is 16 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 356 flights scheduled in it.
Across the year
Republic on CMH to DTW through the year
December is the weak month at 72.2% on time, against 94.9% in November. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. July was the busiest month here, with 126 flights.
Across the week, Friday is the strongest day at 94.5% on time and Monday the weakest at 83.7%, a spread of 11 points.
Arrival by arrival
How late Republic on CMH to DTW runs when it is late
Republic on CMH to DTW often beats the schedule: 409 of 913 completed flights, 45%, arrived 15 minutes or more early. The 94 late arrivals split 24 under half an hour, 28 between 30 and 60 minutes, and 42 an hour or more.
- 15+ min early409 flights44.8%
- Within 15 min410 flights44.9%
- 15–29 min late24 flights2.6%
- 30–59 min late28 flights3.1%
- 1–2 hours late28 flights3.1%
- 2+ hours late14 flights1.5%
Scale runs 0% to 100%.
Share of 913 completed flights by arrival against schedule.
32 of 115 late departures made up the time and arrived on time, 28% of them. Only 11 left on time and still arrived late.
The worst days
Worst days for Republic on CMH to DTW
The latest arrival of the period was on 2 March 2026, 4 hours 2 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across March, January, June, September and October, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 2 March 2026 | 4 hours 2 minutes | Extreme weather |
| 14 January 2026 | 3 hours 39 minutes | National Airspace System |
| 14 June 2026 | 3 hours 28 minutes | National Airspace System |
| 21 September 2025 | 3 hours 20 minutes | Carrier |
| 30 October 2025 | 3 hours 13 minutes | Late-arriving aircraft |
Delay causes
Why Republic runs late on this route
Carrier accounts for 49% of the 6,492 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Carrier
- 26%National Airspace System
- 18%Late-arriving aircraft
- 7%Extreme weather
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,178 of the 6,492 delay minutes reported here. The split is drawn from 6,492 reported delay minutes.
Cancellations are rare at 0.33%, 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 4.6% 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 155 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 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 86.0% on time across 914 flights, 4 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 4 points of difference.
One caution: this is a thin sample. 916 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 CMH to DTW
Put together: treat all of this as provisional. 916 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 89.7% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 913 completed flights over 12 months sit behind that.
Related
Where to go next
- CMH to DTW, every carrier
- Republic on DTW to CMH, the return leg
- SkyWest Airlines on CMH to DTW79.4%
- Republic Airways network-wide record
- John Glenn Columbus International (CMH) delay statistics
- Detroit Metropolitan Wayne County (DTW) delay statistics
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
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.