Carrier route record
OODTW→CMH
SkyWest Airlines · Detroit to Columbus
- Flights
- 522
- Period
- July 2025 to June 2026
- Share of route
- 37%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on DTW to CMH sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land close to two hours behind schedule. That rests on 522 flights, with a median arrival 7 minutes early.
The US average over the same twelve months is 77.6%, so there is little to separate SkyWest on DTW to CMH from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
75.1%
Arrivals under 15 minutes late, of 514 completed flights
Avg delay
121 min
Across delayed arrivals only, not all flights
Cancelled
1.53%
National rate is 1.81%
Whole route
82.3%
Every carrier on DTW to CMH, 1,404 flights
These figures cover 522 flights between July 2025 and June 2026. Beyond the headline rate, 13.4% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
SkyWest against every carrier on DTW to CMH
SkyWest flew 522 of the 1,404 flights on DTW to CMH, about 37% of it. Its 75.1% on time is 7 points worse than the route as a whole, which runs 82.3%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Republic at 86.6% to Delta at 75.0%. 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 | 878 | 86.6% | 81 min | 0.34% | A+ |
| SkyWest Airlines (this page) | 522 | 75.1% | 121 min | 1.53% | B |
| Delta Air Linesthin sample | 4 | 75.0% | 38 min | 0.00% | B+ |
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 28 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–8am—
- 8am–11am179 flights88.2%
- 11am–2pm118 flights68.4%
- 2pm–5pm91 flights72.2%
- 5pm–8pm32 flights81.2%
- 8pm–5am102 flights59.8%
Scale runs 50% to 95%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 59.8% on time, against 88.2% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 179 flights scheduled in it.
Across the year
SkyWest on DTW to CMH through the year
December is the weak month at 51.0% on time, against 93.6% 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 87.0% on time and Sunday the weakest at 68.0%. 19 points is a smaller lever than departure hour, but it is free.
Delay causes
Why SkyWest runs late on this route
One category carries most of the weight here. Carrier accounts for 79% of the 15,000 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.
- 79%Carrier
- 15%Extreme weather
- 5%National Airspace System
Extreme weather accounts for 15% 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 2.5 times the usual weather exposure. The split is drawn from 15,489 reported delay minutes.
The largest share of delay minutes, 79%, 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 12,000 of the 15,000 delay minutes reported here.
Cancellations sit at 1.53% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.4% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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 runs 77.4% on time across 523 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. 522 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 DTW to CMH
Put together: treat all of this as provisional. 522 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 75.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 514 completed flights over 12 months sit behind that.
Related
Where to go next
- DTW to CMH, every carrier
- SkyWest on CMH to DTW, the return leg
- Republic Airways on DTW to CMH86.6%
- SkyWest Airlines network-wide record
- Detroit Metropolitan Wayne County (DTW) delay statistics
- John Glenn Columbus International (CMH) delay statistics
- How often a connection fails at the major US hubs
- The best time of day to fly, according to 7.04 million flight records
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.