Route
DCA → STL
Ronald Reagan Washington National Airport St. Louis Lambert International Airport
How punctual is this route?
- On-time arrivals
- 71.9%
- Less than 15 minutes late
- Cancelled
- 3.1%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,415
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 52%
- Airline (crew, maintenance, cleaning) 31%
- Air traffic control & airport 12%
- Extreme weather 5%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 81.3% | 216 |
| October 2025 | 74.0% | 223 |
| November 2025 | 74.1% | 209 |
| December 2025 | 66.5% | 203 |
| January 2026 | 80.6% | 199 |
| February 2026 | 76.9% | 179 |
| March 2026 | 73.2% | 200 |
| April 2026 | 76.8% | 193 |
| May 2026 | 72.9% | 197 |
| June 2026 | 66.0% | 198 |
| July 2026 | 59.1% | 200 |
| August 2026 | 60.2% | 198 |
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 |
|---|---|---|---|---|
| Southwest Airlines | 1,403 | 73.7% | 1.9% | 65 min |
| OH | 622 | 66.7% | 5.6% | 82 min |
| Republic Airways | 243 | 78.4% | 4.1% | 63 min |
| American Airlines | 126 | 62.6% | 2.4% | 115 min |
| Envoy Air | 21 | 90.5% | 0.0% | 43 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OH5541
34% late · 70 flights
-
YX4458
15% late · 70 flights
-
WN2398
25% late · 63 flights
-
OH5269
49% late · 62 flights
-
WN2401
28% late · 60 flights
-
WN2403
30% late · 60 flights
-
WN1196
41% late · 58 flights
-
WN1762
7% late · 58 flights
-
WN2445
7% late · 58 flights
-
OH5413
20% late · 54 flights
-
WN1386
24% late · 53 flights
-
WN1461
61% late · 51 flights
-
WN1462
55% late · 51 flights
-
WN4853
20% late · 51 flights
-
OH5398
34% late · 49 flights
-
WN3143
9% late · 47 flights
-
WN1519
22% late · 46 flights
-
OH5309
32% late · 42 flights
-
OH5582
33% late · 41 flights
-
OH5503
42% late · 38 flights
-
OH5677
23% late · 37 flights
-
YX4769
37% late · 36 flights
-
AA2286
35% late · 35 flights
-
WN4752
29% late · 35 flights
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