Route
BWI → IAH
Baltimore/Washington International Thurgood Marshall Airport George Bush Intercontinental Airport
How punctual is this route?
- On-time arrivals
- 78.3%
- Less than 15 minutes late
- Cancelled
- 2.1%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,307
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 37%
- Late-arriving aircraft 32%
- Airline (crew, maintenance, cleaning) 26%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.7% | 106 |
| October 2025 | 86.1% | 108 |
| November 2025 | 81.0% | 123 |
| December 2025 | 75.0% | 104 |
| January 2026 | 87.3% | 119 |
| February 2026 | 85.9% | 102 |
| March 2026 | 79.8% | 115 |
| April 2026 | 72.6% | 119 |
| May 2026 | 67.0% | 106 |
| June 2026 | 72.3% | 103 |
| July 2026 | 71.3% | 105 |
| August 2026 | 71.9% | 97 |
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 |
|---|---|---|---|---|
| United Airlines | 833 | 84.0% | 1.2% | 72 min |
| NK | 293 | 73.3% | 2.7% | 106 min |
| Frontier Airlines | 180 | 59.1% | 5.0% | 92 min |
| SkyWest Airlines | 1 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1898
7% late · 214 flights
-
F93067
41% late · 180 flights
-
UA2095
36% late · 149 flights
-
UA2384
15% late · 115 flights
-
NK1244
37% late · 93 flights
-
UA2194
10% late · 72 flights
-
UA743
16% late · 58 flights
-
UA2128
4% late · 55 flights
-
NK1318
16% late · 49 flights
-
NK2603
17% late · 42 flights
-
UA2190
11% late · 37 flights
-
UA543
35% late · 35 flights
-
NK139
39% late · 33 flights
-
NK2952
12% late · 32 flights
-
UA204
3% late · 32 flights
-
NK713
20% late · 30 flights
-
UA1362
16% late · 20 flights
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