Carrier route record
OHDFW→SDF
PSA Airlines · Dallas-Fort Worth to Louisville
- Flights
- 389
- Period
- September 2025 to August 2026
- Share of route
- 20%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on DFW to SDF lands a B−, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 389 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 389 at 89.1% on time.
Set against the rest of the country, PSA's DFW to SDF record is 6 points better than the US average of 77.3%. That gap is worth roughly 58 fewer late arrivals for every thousand flights.
Key figures
On time
83.1%
Arrivals under 15 minutes late, of 372 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
4.37%
National rate is 1.89%
Whole route
71.8%
Every carrier on DFW to SDF, 1,992 flights
These figures cover 389 flights between September 2025 and August 2026. The median arrival is 10 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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Carrier by carrier
PSA against every carrier on DFW to SDF
PSA flew 389 of the 1,992 flights on DFW to SDF, about 20% of it. Its 83.1% on time is 11 points better than the route as a whole, which runs 71.8%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Envoy at 89.1% to American at 62.1%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Envoy Air arrives on time 89.1% of the time; American Airlines manages 62.1%. Sample sizes sit next to every figure, because a two-point gap across 1,184 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air | 389 | 89.1% | 52 min | 1.29% | A |
| PSA Airlines (this page) | 389 | 83.1% | 75 min | 4.37% | B− |
| SkyWest Airlinesthin sample | 30 | 82.8% | 51 min | 3.33% | B− |
| American Airlines | 1,184 | 62.1% | 83 min | 2.96% | D |
The spread between Envoy and American is 27 points, wide enough that it should decide the booking. On a hundred trips that is 27 more arrivals inside the on-time window.
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Departure window
When PSA runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 20 points, against 27 points between the best and worst carrier.
- 5am–8am—
- 8am–11am258 flights89.4%
- 11am–2pm28 flights—
- 2pm–5pm103 flights69.7%
- 5pm–8pm—
- 8pm–5am—
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 89.4% of the time, against 69.7% for the afternoon window. That is 20 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 258 flights scheduled in it.
Across the year
PSA on DFW to SDF through the year
Delays peak in March, when the on-time rate falls to 70.2%. February is the strongest month at 90.9%. Moving a flexible trip across that boundary buys 21 points. April was the busiest month here, with 53 flights.
Across the week, Wednesday is the strongest day at 88.7% on time and Tuesday the weakest at 78.3%, a spread of 10 points.
Arrival by arrival
How late PSA on DFW to SDF runs when it is late
PSA on DFW to SDF often beats the schedule: 141 of 372 completed flights, 38%, arrived 15 minutes or more early. The 63 late arrivals split 20 under half an hour, 16 between 30 and 60 minutes, and 27 an hour or more.
- 15+ min early141 flights37.9%
- Within 15 min168 flights45.2%
- 15–29 min late20 flights5.4%
- 30–59 min late16 flights4.3%
- 1–2 hours late14 flights3.8%
- 2+ hours late13 flights3.5%
Scale runs 0% to 100%.
Share of 372 completed flights by arrival against schedule.
18 of 76 late departures made up the time and arrived on time, 24% of them. Only 5 left on time and still arrived late.
The worst days
Worst days for PSA on DFW to SDF
The latest arrival of the period was on 18 December 2025, 6 hours 36 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across December, April, July and September, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 18 December 2025 | 6 hours 36 minutes | Carrier |
| 18 April 2026 | 5 hours 34 minutes | Extreme weather |
| 15 July 2026 | 3 hours 38 minutes | Carrier |
| 24 September 2025 | 3 hours | Late-arriving aircraft |
| 12 July 2026 | 2 hours 45 minutes | Late-arriving aircraft |
Delay causes
Why PSA runs late on this route
Late-arriving aircraft accounts for 42% of the 4,711 delay minutes carriers reported here, and the remaining four split what is left.
- 42%Late-arriving aircraft
- 37%Carrier
- 11%Extreme weather
- 10%National Airspace System
Extreme weather accounts for 11% 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 1.8 times the usual weather exposure. The split is drawn from 4,711 reported delay minutes.
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,711 reported delay minutes here, that single category outweighs weather by 4 to one.
Cancellations run at 4.37%, against 1.89% nationally. That is roughly one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
7.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 733 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 80.0% on time across 389 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. 389 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 PSA on DFW to SDF
Put together: the delay figures matter less here than the 4.37% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 372 completed flights over 12 months sit behind that.
Related
Where to go next
- DFW to SDF, every carrier
- PSA on SDF to DFW, the return leg
- Envoy Air on DFW to SDF89.1%
- American Airlines on DFW to SDF62.1%
- PSA Airlines network-wide record
- Dallas/Fort Worth International (DFW) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.