Route on-time record
SDF to DTW: most on-time flights and the best time to fly
Louisville (Louisville Muhammad Ali International Airport) to Detroit (Detroit Metropolitan Wayne County Airport). 1,238 nonstop flights in Jun 2025 to May 2026, 82% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Republic 5824 at 7:45 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SDF → DTW
Louisville to Detroit: 1,238 nonstop flights a year
On time (12 months)
82%
Cancelled
0.9%
avg delay 21 min
Best time to leave
Before 9 AM
90% on time vs 71% 3 to 6 PM
Most reliable airline
Republic
89% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Republic 5824 · sold as American Eagle, Delta Connection or United Express
7:45 AM → 9:11 AM1h 26m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.3%
- Avg arrival delay
- 8 min
- Arrived on time 90% of the time (364 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 90% on time; 3 to 6 PM: 71%).
Strong track record · 364 flights
Find 7:45 AM flight fares Opens this date on Aviasales#2 · SkyWest 3821 · sold as United Express, Delta Connection, American Eagle or Alaska
10:50 AM → 12:11 PM1h 21m nonstop
Local times, typical schedule. Last flown 2026-05-06.
84%
chance on time
- On time (history)
- 85%
- Cancelled
- 2.4%
- Avg arrival delay
- 12 min
- Arrived on time 85% of the time (122 flights, Jun 2025 to May 2026).
Moderate track record · 122 flights
Find 10:50 AM flight fares Opens this date on Aviasales#3 · SkyWest 3993 · sold as United Express, Delta Connection, American Eagle or Alaska
10:39 AM → 12:04 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.5%
- Avg arrival delay
- 20 min
- Arrived on time 85% of the time (217 flights, Jun 2025 to May 2026).
Strong track record · 217 flights
Find 10:39 AM flight fares Opens this date on Aviasales#4 · SkyWest 3848 · sold as United Express, Delta Connection, American Eagle or Alaska
3:10 PM → 4:33 PM1h 23m nonstop
Local times, typical schedule. Last flown 2026-05-06.
78%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 85% of the time (20 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 71% on time; Before 9 AM: 90%).
- Lands inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (20 flights), so its score leans on the airline's record at this hour.
Limited track record · 20 flights
Find 3:10 PM flight fares Opens this date on Aviasales#5 · SkyWest 4120 · sold as United Express, Delta Connection, American Eagle or Alaska
2:34 PM → 3:59 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 85% of the time (20 flights, Jun 2025 to May 2026).
- Lands inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (20 flights), so its score leans on the airline's record at this hour.
Limited track record · 20 flights
Find 2:34 PM flight fares Opens this date on Aviasales#6 · SkyWest 4122 · sold as United Express, Delta Connection, American Eagle or Alaska
6:08 PM → 7:32 PM1h 24m nonstop
Local times, typical schedule. Last flown 2026-05-06.
75%
chance on time
- On time (history)
- 80%
- Cancelled
- 0.0%
- Avg arrival delay
- 44 min
- Arrived on time 80% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Short track record (30 flights), so its score leans on the airline's record at this hour.
Limited track record · 30 flights
Find 6:08 PM flight fares Opens this date on Aviasales#7 · SkyWest 3931 · sold as United Express, Delta Connection, American Eagle or Alaska
2:17 PM → 3:33 PM1h 16m nonstop
Local times, typical schedule. Last flown 2026-04-12.
73%
chance on time
- On time (history)
- 67%
- Cancelled
- 3.2%
- Avg arrival delay
- 18 min
- Arrived on time 67% of the time (30 flights, Jun 2025 to May 2026).
- Cancelled 3.2% of the time (1 of 31).
- Lands inside DTW's trouble window: 64% of its 28 ground stops and delay programs started between 1 PM and 7 PM.
- Short track record (30 flights), so its score leans on the airline's record at this hour.
Limited track record · 30 flights
Find 2:17 PM flight fares Opens this date on Aviasales#8 · SkyWest 3957 · sold as United Express, Delta Connection, American Eagle or Alaska
5:55 PM → 7:14 PM1h 19m nonstop
Local times, typical schedule. Last flown 2026-05-31.
68%
chance on time
- On time (history)
- 69%
- Cancelled
- 0.6%
- Avg arrival delay
- 33 min
- Arrived on time 69% of the time (155 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 71% on time; Before 9 AM: 90%).
Moderate track record · 155 flights
Find 5:55 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Republic Airways (sold as American Eagle, Delta Connection or United Express)89%
408 flights · 90% on time as flown · 0.4% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)78%
795 flights · 78% on time as flown · 1.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM90%
365 flights · avg delay 8 min
- 9 AM to noon84%
356 flights · avg delay 17 min
- Noon to 3 PM78%
163 flights · avg delay 22 min
- 3 to 6 PM71%
148 flights · avg delay 33 min
- 6 to 9 PM76%
206 flights · avg delay 41 min
Best day: Wednesday (88%). Worst: Sunday (83%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)67%
- Severe weather19%
- Air traffic control and airport volume11%
- Late-arriving aircraft3%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
SDF to DTW questions
- What time of day is best to fly SDF to DTW?
- Before 9 AM: 90% of flights arrived on time, against 71% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from SDF to DTW?
- Republic, with a season-adjusted 89% chance of operating and arriving on time over 408 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on SDF to DTW?
- January (75% on time); the best was October (94%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from SDF
- DTW to SDF (return)
- SDF to ORD 79%
- SDF to ATL 89%
- SDF to DFW 74%
- SDF to CLT 82%
- SDF to DEN 83%
- SDF to LGA 83%
- SDF to DCA 79%
- SDF to MDW 85%
- SDF to EWR 86%
- SDF to BWI 86%
- SDF to MCO 81%
- SDF to BOS 70%
Live status: FAA delays and ground stops