Flight number record
YX 5824
Republic Airways · Louisville to Detroit
- Route
- SDF → DTW
- Departs
- 07:50
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5824, check with Republic Airways. Republic Airways flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
YX 5824 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 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 365 flights, with a median arrival 9 minutes early.
Set against the rest of the country, YX 5824's record is 13 points better than the US average of 77.3%. That gap is worth roughly 125 fewer late arrivals for every thousand flights.
Key figures
On time
89.8%
Arrivals under 15 minutes late, of 364 completed flights
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
0.27%
National rate is 1.89%
1 hour+ late
3.8%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 9 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.
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Schedule
When YX 5824 flies
YX 5824 flies SDF to DTW without a single fixed slot. Its most common scheduled departure was 07:50, used on 191 of 365 flights, with 07:55 (71 flights) next.
- Departs 07:50191 flights52.3%
- Departs 07:5571 flights19.5%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:50 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 5824 runs level with that at 89.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
YX 5824 next to SDF to DTW
Every carrier on SDF to DTW combined arrived on time 82.7% of the time across 1,089 flights, so YX 5824 is 7 points ahead of it. Across its whole network Republic Airways managed 78.1%, which this flight beats by 12 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5824 | 365 | 89.8% | 78 min | 0.27% | A+ |
| All Republic Airways on SDF–DTW | 408 | 89.9% | 77 min | 0.25% | A+ |
| All carriers on SDF–DTW | 1,089 | 82.7% | 121 min | 1.01% | B |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5824 quarter by quarter
YX 5824 did not run the same all year. Its best quarter was Jul–Sep 2026 at 95.2% on time and its weakest Jan–Mar 2026 at 84.3%, a swing of 11 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights90.0%
- Oct–Dec 202592 flights90.2%
- Jan–Mar 202690 flights84.3%
- Apr–Jun 202691 flights91.2%
- Jul–Sep 202662 flights95.2%
Scale runs 75% to 100%.
By weekday, YX 5824 ranged from 84.6% on Friday to 94.2% on Thursday. With about 52 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late YX 5824 runs when it is late
YX 5824 often beats the schedule: 91 of 364 completed flights, 25%, arrived 15 minutes or more early. The 37 late arrivals split 14 under half an hour, 9 between 30 and 60 minutes, and 14 an hour or more.
- 15+ min early91 flights25.0%
- Within 15 min236 flights64.8%
- 15–29 min late14 flights3.8%
- 30–59 min late9 flights2.5%
- 1–2 hours late5 flights1.4%
- 2+ hours late9 flights2.5%
Scale runs 0% to 100%.
Share of 364 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 36 departures that left 15 minutes late or more, only 4 made it up before arrival. Only 5 left on time and still arrived late.
The worst days
Worst days for YX 5824
The latest arrival of the period was on 19 July 2026, 6 hours 21 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 July 2026 | 6 hours 21 minutes | Carrier |
| 8 January 2026 | 4 hours 54 minutes | Carrier |
| 5 November 2025 | 2 hours 59 minutes | Late-arriving aircraft |
| 21 October 2025 | 2 hours 52 minutes | Carrier |
| 26 January 2026 | 2 hours 52 minutes | Carrier |
Delay causes
Why YX 5824 runs late
Carrier accounts for 71% of the 2,889 delay minutes carriers reported here, and the remaining four split what is left.
- 71%Carrier
- 18%National Airspace System
- 10%Late-arriving aircraft
- 1%Extreme weather
The largest share of delay minutes, 71%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,045 of the 2,889 delay minutes reported here. The split is drawn from 2,889 delay minutes reported on YX 5824.
Cancellations are rare at 0.27%, below the national 1.89% 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 routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.8% land an hour or more behind schedule, against 8.3% 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.
Every one of the 365 flights under YX 5824 in the data flew SDF to DTW. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 365 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 YX 5824
For a booking, YX 5824 has one of the better records a US domestic flight can show: 89.8% on time and 0.27% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- SDF to DTW, every carrier and departure
- DTW to SDF, the return direction
- Detroit Metropolitan Wayne County (DTW) delay statistics
- Republic Airways on-time record
- Every Republic Airways flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means Republic Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
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.