Route
RDU → BWI
Raleigh-Durham International Airport Baltimore/Washington International Thurgood Marshall Airport
How punctual is this route?
- On-time arrivals
- 85.8%
- Less than 15 minutes late
- Cancelled
- 2.2%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,763
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Airline (crew, maintenance, cleaning) 23%
- Air traffic control & airport 16%
- Extreme weather 1%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 92.1% | 141 |
| October 2025 | 81.3% | 166 |
| November 2025 | 92.9% | 160 |
| December 2025 | 85.5% | 161 |
| January 2026 | 88.5% | 132 |
| February 2026 | 89.6% | 123 |
| March 2026 | 79.3% | 149 |
| April 2026 | 92.5% | 146 |
| May 2026 | 86.6% | 149 |
| June 2026 | 81.6% | 154 |
| July 2026 | 76.0% | 160 |
| August 2026 | 85.8% | 122 |
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 | 1,763 | 85.8% | 2.2% | 62 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN3425
31% late · 91 flights
-
WN1928
8% late · 64 flights
-
WN3422
8% late · 61 flights
-
WN1481
21% late · 58 flights
-
WN3984
3% late · 58 flights
-
WN3985
7% late · 57 flights
-
WN1601
10% late · 55 flights
-
WN2014
7% late · 55 flights
-
WN3303
6% late · 55 flights
-
WN331
19% late · 55 flights
-
WN1059
16% late · 52 flights
-
WN1283
8% late · 50 flights
-
WN781
4% late · 50 flights
-
WN3986
8% late · 49 flights
-
WN2699
0% late · 46 flights
-
WN1063
34% late · 43 flights
-
WN4550
9% late · 43 flights
-
WN2019
17% late · 42 flights
-
WN2577
3% late · 33 flights
-
WN590
9% late · 33 flights
-
WN1809
10% late · 31 flights
-
WN2673
3% late · 31 flights
-
WN442
13% late · 30 flights
-
WN1078
33% late · 28 flights
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