No delays reported for OO 4120 (DTW→ROC, ROC→DTW, DTW→SDF) as of 6:46 PM ET. It arrived on time 75% of the time in June-August 2026. When it was late, the average delay was 1h 22m. None were cancelled. Right now there are no reported delays at DTW, ROC, SDF.
May not fly today
Leg 1 of 3 (DTW → ROC): Next leg DTW → ROC, scheduled 10:20 AM local time. No delays at DTW right now. This flight number flew about 4 days a week in June-August 2026, so it may not operate today.
Cancellation risk: Low 0% of its flights were cancelled in June-August 2026.
Estimate from the schedule, live position and airport conditions, if this flight operates today. Check SkyWest for official times. Live position: adsb.lol (open data, ODbL).
What to do now
Some links are affiliate links.
Route and schedule
| Leg | Scheduled | On time |
|---|---|---|
| DTW → ROC Detroit, MI to Rochester, NY | 10:20 AM → 11:46 AM | 80% |
| ROC → DTW Rochester, NY to Detroit, MI | 12:28 PM → 1:55 PM | 80% |
| DTW → SDF Detroit, MI to Louisville, KY | 12:30 PM → 1:51 PM | 40% |
Local times. Schedules change; check your booking.
How reliable is OO 4120?
| Arrived on time (within 15 min) | 75% |
| Average delay when late | 82 min |
| Cancelled | 0% |
| Diverted | 0% |
| Flights tracked | 108 |
Best and worst days to fly OO 4120
OO 4120 was most reliable on Tuesdays (89% on time) and least reliable on Mondays (61%).
| Monday | |
| Tuesday | |
| Wednesday | |
| Thursday | |
| Friday | |
| Saturday | Too few flights |
| Sunday |
Why it runs late
| Late-arriving plane | |
| Airline (crew, maintenance) | |
| Air traffic system | |
| Extreme weather |
Share of delay minutes by cause, as reported by SkyWest to the Department of Transportation.
Other flights DTW → ROC
All flights on this route, ranked
Live status at its airports
We show airport-wide airport status, not this flight's gate or live position. For that, check the SkyWest app.
About this data
On-time history: U.S. Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, June-August 2026. Live conditions: live airport status. "On time" means arriving within 15 minutes of schedule.
Common questions
Is OO 4120 delayed today?
Right now there are no reported delays at DTW, ROC, SDF. Checked 6:46 PM ET. For this flight's gate and exact status, check the SkyWest app.
Is OO 4120 usually on time?
OO 4120 arrived within 15 minutes of schedule 75% of the time in June-August 2026, with an average delay of 82 minutes when late.
How often is OO 4120 cancelled?
0% of OO 4120 flights were cancelled in June-August 2026.