Carrier route record
YXCMH→DTW
Republic Airways · Columbus to Detroit
- Flights
- 879
- Period
- July 2025 to June 2026
- Share of route
- 62%
- Carriers
- 3
Historical statistics for July 2025 to June 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 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 879 flights, with a median arrival 11 minutes early.
Set against the rest of the country, Republic's CMH to DTW record is 12 points better than the US average of 77.6%. That gap is worth roughly 122 fewer late arrivals for every thousand flights.
Key figures
On time
89.8%
Arrivals under 15 minutes late, of 876 completed flights
Avg delay
70 min
Across delayed arrivals only, not all flights
Cancelled
0.34%
National rate is 1.81%
Whole route
85.2%
Every carrier on CMH to DTW, 1,407 flights
These figures cover 879 flights between July 2025 and June 2026. The median arrival is 11 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 CMH to DTW
Republic flew 879 of the 1,407 flights on CMH to DTW, most of the route. Its 89.8% on time is 5 points better than the route as a whole, which runs 85.2%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Republic at 89.8% 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) | 879 | 89.8% | 70 min | 0.34% | A+ |
| SkyWest Airlines | 523 | 77.4% | 109 min | 1.72% | B |
| Delta Air Linesthin sample | 5 | 60.0% | 52 min | 0.00% | D+ |
Flight by flight
Republic flight numbers on CMH to DTW
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. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am130 flights93.8%
- 8am–11am369 flights93.5%
- 11am–2pm150 flights88.0%
- 2pm–5pm99 flights89.9%
- 5pm–8pm131 flights77.9%
- 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 77.9% 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 369 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. August was the busiest month here, with 125 flights.
Across the week, Friday is the strongest day at 94.3% on time and Monday the weakest at 85.7%. 9 points is a smaller lever than departure hour, but it is free.
Delay causes
Why Republic runs late on this route
One category carries most of the weight here. Carrier accounts for 50% of the 6,228 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 50%Carrier
- 26%National Airspace System
- 18%Late-arriving aircraft
- 7%Extreme weather
The largest share of delay minutes, 50%, 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 3,093 of the 6,228 delay minutes reported here. The split is drawn from 6,228 reported delay minutes.
Cancellations are rare at 0.34%, below the national 1.81% 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 4.0% land an hour or more behind schedule, against 8.1% 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 86.6% on time across 878 flights, 3 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 3 points of difference.
One caution: this is a thin sample. 879 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. 879 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 89.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 876 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 DTW77.4%
- 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 7.04 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.