Route
HOU → BWI
William P. Hobby Airport Baltimore/Washington International Thurgood Marshall Airport
How punctual is this route?
- On-time arrivals
- 74.9%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,482
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 18%
- Extreme weather 3%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.3% | 124 |
| October 2025 | 70.8% | 130 |
| November 2025 | 79.7% | 129 |
| December 2025 | 78.3% | 131 |
| January 2026 | 91.8% | 103 |
| February 2026 | 82.1% | 98 |
| March 2026 | 56.7% | 122 |
| April 2026 | 75.0% | 120 |
| May 2026 | 77.4% | 124 |
| June 2026 | 66.1% | 120 |
| July 2026 | 62.8% | 150 |
| August 2026 | 82.7% | 131 |
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 | 1,482 | 74.9% | 1.3% | 53 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN523
33% late · 64 flights
-
WN2882
17% late · 63 flights
-
WN3797
5% late · 61 flights
-
WN1960
25% late · 60 flights
-
WN1961
45% late · 60 flights
-
WN2303
19% late · 58 flights
-
WN2304
24% late · 58 flights
-
WN503
5% late · 58 flights
-
WN4706
20% late · 57 flights
-
WN2241
20% late · 54 flights
-
WN496
49% late · 49 flights
-
WN2093
5% late · 47 flights
-
WN978
5% late · 45 flights
-
WN1849
5% late · 44 flights
-
WN2884
13% late · 39 flights
-
WN1615
81% late · 33 flights
-
WN3124
6% late · 33 flights
-
WN3129
64% late · 33 flights
-
WN1895
42% late · 31 flights
-
WN2550
26% late · 31 flights
-
WN2854
10% late · 31 flights
-
WN2980
23% late · 31 flights
-
WN1900
0% late · 28 flights
-
WN1724
30% late · 27 flights
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