Carrier route record
AADFW→SDF
American Airlines · Dallas-Fort Worth to Louisville
- Flights
- 1,184
- Period
- September 2025 to August 2026
- Share of route
- 59%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.
American on DFW to SDF draws a D. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 1,184 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 389 at 89.1% on time.
The national on-time rate over the same period is 77.3%, so American on DFW to SDF runs 15 points behind the country as a whole. Across a thousand flights that is about 152 extra late arrivals.
Key figures
On time
62.1%
Arrivals under 15 minutes late, of 1,148 completed flights
Avg delay
83 min
Across delayed arrivals only, not all flights
Cancelled
2.96%
National rate is 1.89%
Whole route
71.8%
Every carrier on DFW to SDF, 1,992 flights
These figures cover 1,184 flights between September 2025 and August 2026. Beyond the headline rate, 16.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
American against every carrier on DFW to SDF
American flew 1,184 of the 1,992 flights on DFW to SDF, most of the route. Its 62.1% on time is 10 points worse than the route as a whole, which runs 71.8%. Ranked by on-time rate it is last 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; PSA Airlines manages 83.1%. Sample sizes sit next to every figure, because a two-point gap across 389 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 | 389 | 83.1% | 75 min | 4.37% | B− |
| SkyWest Airlinesthin sample | 30 | 82.8% | 51 min | 3.33% | B− |
| American Airlines (this page) | 1,184 | 62.1% | 83 min | 2.96% | D |
PSA Airlines cancels 4.4% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against 6 points between the best and worst carrier.
- 5am–8am164 flights75.0%
- 8am–11am72 flights70.4%
- 11am–2pm105 flights66.0%
- 2pm–5pm307 flights62.8%
- 5pm–8pm315 flights58.0%
- 8pm–5am221 flights52.3%
Scale runs 45% to 80%.
The 8pm–5am window is where this operation falls apart: 52.3% on time, against 75.0% for the 5am–8am 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 5pm–8pm window is the busiest, with 315 flights scheduled in it.
Across the year
American on DFW to SDF through the year
July is the worst month at 33.8% on time, 41 points below January, the best at 74.6%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 124 flights.
Across the week, Tuesday is the strongest day at 69.9% on time and Monday the weakest at 57.6%, a spread of 12 points.
Arrival by arrival
How late American on DFW to SDF runs when it is late
The 435 late arrivals split 111 under half an hour, 134 between 30 and 60 minutes, and 190 an hour or more.
- 15+ min early135 flights11.8%
- Within 15 min578 flights50.3%
- 15–29 min late111 flights9.7%
- 30–59 min late134 flights11.7%
- 1–2 hours late100 flights8.7%
- 2+ hours late90 flights7.8%
Scale runs 0% to 100%.
Share of 1,148 completed flights by arrival against schedule.
71 of 471 late departures made up the time and arrived on time, 15% of them. 35 flights left on time and still arrived late.
The worst days
Worst days for American on DFW to SDF
The latest arrival of the period was on 25 September 2025, 12 hours 1 minute behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 25 September 2025 | 12 hours 1 minute | Late-arriving aircraft |
| 27 July 2026 | 11 hours 11 minutes | Carrier |
| 28 December 2025 | 11 hours 3 minutes | Late-arriving aircraft |
| 1 July 2026 | 9 hours 52 minutes | Carrier |
| 4 November 2025 | 9 hours 51 minutes | Late-arriving aircraft |
Delay causes
Why American runs late on this route
Late-arriving aircraft accounts for 54% of the 36,000 delay minutes carriers reported here, and the remaining four split what is left.
- 54%Late-arriving aircraft
- 35%Carrier
- 7%National Airspace System
- 3%Extreme weather
- 0%Security
54% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 36,000 reported delay minutes here, that single category outweighs weather by 16 to one. The split is drawn from 36,262 reported delay minutes.
The largest share of delay minutes, 35%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 13,000 of the 36,000 delay minutes reported here.
Cancellations run at 2.96%, against 1.89% nationally. That is roughly one flight in 30 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
16.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
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 72.9% on time across 1,186 flights, 11 points above 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 11 points of difference.
The sample behind these figures is 1,184 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking American on DFW to SDF
Put together: the delay figures matter less here than the 2.96% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,148 completed flights over 12 months sit behind that.
Related
Where to go next
- DFW to SDF, every carrier
- American on SDF to DFW, the return leg
- Envoy Air on DFW to SDF89.1%
- PSA Airlines on DFW to SDF83.1%
- American 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.