Route
DTW → IAH
Detroit Metropolitan Wayne County Airport George Bush Intercontinental Airport
How punctual is this route?
- On-time arrivals
- 78.5%
- Less than 15 minutes late
- Cancelled
- 1.0%
- Of scheduled flights
- Average delay when late
- 67 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,083
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 42%
- Air traffic control & airport 30%
- Late-arriving aircraft 25%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 94.5% | 181 |
| October 2025 | 91.7% | 168 |
| November 2025 | 82.5% | 191 |
| December 2025 | 61.4% | 170 |
| January 2026 | 70.9% | 130 |
| February 2026 | 85.1% | 149 |
| March 2026 | 75.9% | 203 |
| April 2026 | 79.4% | 181 |
| May 2026 | 73.9% | 182 |
| June 2026 | 71.1% | 173 |
| July 2026 | 75.3% | 175 |
| August 2026 | 78.2% | 180 |
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 |
|---|---|---|---|---|
| Delta Air Lines | 1,327 | 78.6% | 0.8% | 61 min |
| NK | 292 | 75.8% | 2.4% | 88 min |
| United Airlines | 275 | 88.0% | 0.4% | 60 min |
| Frontier Airlines | 182 | 67.2% | 1.1% | 74 min |
| SkyWest Airlines | 7 | 85.7% | 0.0% | 19 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL1633
22% late · 364 flights
-
DL1043
16% late · 219 flights
-
DL1307
17% late · 214 flights
-
DL1529
28% late · 203 flights
-
F91957
33% late · 182 flights
-
DL1718
32% late · 119 flights
-
UA1798
8% late · 114 flights
-
DL1798
14% late · 110 flights
-
NK2023
35% late · 85 flights
-
NK3106
4% late · 56 flights
-
UA1229
7% late · 44 flights
-
DL1864
26% late · 42 flights
-
DL2158
11% late · 36 flights
-
UA1114
20% late · 35 flights
-
NK2240
42% late · 34 flights
-
NK3188
15% late · 34 flights
-
NK386
27% late · 31 flights
-
NK2326
12% late · 24 flights
-
UA2034
9% late · 23 flights
-
UA2090
19% late · 21 flights
-
DL1503
25% late · 20 flights
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