Route
DCA → SDF
Ronald Reagan Washington National Airport Louisville Muhammad Ali International Airport
How punctual is this route?
- On-time arrivals
- 74.9%
- Less than 15 minutes late
- Cancelled
- 5.4%
- Of scheduled flights
- Average delay when late
- 72 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,027
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 55%
- Airline (crew, maintenance, cleaning) 24%
- Air traffic control & airport 13%
- Extreme weather 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.0% | 90 |
| October 2025 | 87.1% | 93 |
| November 2025 | 70.9% | 84 |
| December 2025 | 55.2% | 63 |
| January 2026 | 72.2% | 83 |
| February 2026 | 70.5% | 84 |
| March 2026 | 71.6% | 92 |
| April 2026 | 86.7% | 90 |
| May 2026 | 86.5% | 90 |
| June 2026 | 76.9% | 86 |
| July 2026 | 65.0% | 88 |
| August 2026 | 64.9% | 84 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| OH | 544 | 76.7% | 5.3% | 65 min |
| Republic Airways | 465 | 72.5% | 5.4% | 80 min |
| Envoy Air | 13 | 83.3% | 7.7% | 50 min |
| American Airlines | 5 | 80.0% | 0.0% | 73 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX4672
31% late · 321 flights
-
OH5602
24% late · 151 flights
-
OH5189
40% late · 61 flights
-
OH5400
15% late · 56 flights
-
YX4753
23% late · 47 flights
-
OH5674
35% late · 45 flights
-
YX4515
16% late · 44 flights
-
OH5461
26% late · 42 flights
-
OH5440
0% late · 41 flights
-
OH5203
15% late · 33 flights
-
OH5227
18% late · 31 flights
-
OH5459
22% late · 27 flights
-
YX4768
12% late · 26 flights
-
OH5135
33% late · 25 flights
-
OH5592
17% late · 23 flights
-
YX4633
33% late · 20 flights
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