Carrier route record
OOCMH→DTW
SkyWest Airlines · Columbus to Detroit
- Flights
- 587
- Period
- September 2025 to August 2026
- Share of route
- 39%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on CMH to DTW lands a B, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by close to two hours on average. That rests on 587 flights, with a median arrival 9 minutes early.
The US average over the same twelve months is 77.3%, so there is little to separate SkyWest on CMH to DTW from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
79.4%
Arrivals under 15 minutes late, of 578 completed flights
Avg delay
105 min
Across delayed arrivals only, not all flights
Cancelled
1.53%
National rate is 1.89%
Whole route
85.6%
Every carrier on CMH to DTW, 1,508 flights
These figures cover 587 flights between September 2025 and August 2026. Beyond the headline rate, 9.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
SkyWest against every carrier on CMH to DTW
SkyWest flew 587 of the 1,508 flights on CMH to DTW, about 39% of it. Its 79.4% on time is 6 points worse than the route as a whole, which runs 85.6%. Ranked by on-time rate it is number two 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 | 916 | 89.7% | 69 min | 0.33% | A+ |
| SkyWest Airlines (this page) | 587 | 79.4% | 105 min | 1.53% | B |
| Delta Air Linesthin sample | 5 | 60.0% | 52 min | 0.00% | D+ |
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 SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 24 points, against half a point between the best and worst carrier.
- 5am–8am99 flights71.3%
- 8am–11am227 flights88.9%
- 11am–2pm6 flights—
- 2pm–5pm90 flights65.2%
- 5pm–8pm165 flights78.0%
- 8pm–5am—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 88.9% of the time, against 65.2% for the afternoon window. That is 24 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 227 flights scheduled in it.
Across the year
SkyWest on CMH to DTW through the year
December is the weak month at 56.0% on time, against 95.7% in October. 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. February was the busiest month here, with 72 flights.
Across the week, Saturday is the strongest day at 87.7% on time and Monday the weakest at 70.6%, a spread of 17 points.
Arrival by arrival
How late SkyWest on CMH to DTW runs when it is late
SkyWest on CMH to DTW often beats the schedule: 193 of 578 completed flights, 33%, arrived 15 minutes or more early. The 119 late arrivals split 30 under half an hour, 33 between 30 and 60 minutes, and 56 an hour or more.
- 15+ min early193 flights33.4%
- Within 15 min266 flights46.0%
- 15–29 min late30 flights5.2%
- 30–59 min late33 flights5.7%
- 1–2 hours late25 flights4.3%
- 2+ hours late31 flights5.4%
Scale runs 0% to 100%.
Share of 578 completed flights by arrival against schedule.
18 of 124 late departures made up the time and arrived on time, 15% of them. 13 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on CMH to DTW
The latest arrival of the period was on 9 November 2025, 20 hours 52 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 November 2025 | 20 hours 52 minutes | Carrier |
| 7 March 2026 | 10 hours 49 minutes | Carrier |
| 26 January 2026 | 7 hours 44 minutes | Carrier |
| 5 December 2025 | 6 hours 48 minutes | Carrier |
| 7 December 2025 | 6 hours 31 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 74% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 74%Carrier
- 19%Extreme weather
- 7%National Airspace System
Extreme weather accounts for 19% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.1 times the usual weather exposure. The split is drawn from 12,533 reported delay minutes.
The largest share of delay minutes, 74%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 9,328 of the 13,000 delay minutes reported here.
Cancellations sit at 1.53% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
9.7% 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 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 8am–11am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 76.0% on time across 587 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. 587 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 SkyWest on CMH to DTW
Put together: treat all of this as provisional. 587 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 79.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 578 completed flights over 12 months sit behind that.
Related
Where to go next
- CMH to DTW, every carrier
- SkyWest on DTW to CMH, the return leg
- Republic Airways on CMH to DTW89.7%
- SkyWest Airlines network-wide record
- John Glenn Columbus International (CMH) delay statistics
- Detroit Metropolitan Wayne County (DTW) delay statistics
- How often a connection fails at the major US hubs
- The best time of day to fly, according to 7.05 million flight records
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.