Route
IAH → DTW
George Bush Intercontinental Airport Detroit Metropolitan Wayne County Airport
How punctual is this route?
- On-time arrivals
- 78.9%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,088
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 45%
- Late-arriving aircraft 37%
- Air traffic control & airport 13%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 89.4% | 180 |
| October 2025 | 87.7% | 171 |
| November 2025 | 81.9% | 190 |
| December 2025 | 79.5% | 169 |
| January 2026 | 78.3% | 132 |
| February 2026 | 81.1% | 150 |
| March 2026 | 68.8% | 204 |
| April 2026 | 76.8% | 182 |
| May 2026 | 76.8% | 182 |
| June 2026 | 73.8% | 173 |
| July 2026 | 72.4% | 175 |
| August 2026 | 81.0% | 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 | 82.4% | 0.7% | 77 min |
| NK | 295 | 75.1% | 3.4% | 87 min |
| United Airlines | 277 | 70.7% | 0.4% | 68 min |
| Frontier Airlines | 183 | 72.1% | 1.6% | 91 min |
| SkyWest Airlines | 6 | 66.7% | 0.0% | 94 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL1389
10% late · 365 flights
-
DL1043
15% late · 266 flights
-
UA685
28% late · 216 flights
-
F91958
28% late · 183 flights
-
DL1632
15% late · 172 flights
-
DL1529
29% late · 145 flights
-
DL1865
30% late · 79 flights
-
DL852
10% late · 62 flights
-
NK2020
30% late · 59 flights
-
NK3105
7% late · 56 flights
-
DL1349
24% late · 54 flights
-
UA2237
42% late · 38 flights
-
DL1718
44% late · 37 flights
-
DL1692
19% late · 36 flights
-
DL1699
25% late · 36 flights
-
NK3189
12% late · 34 flights
-
NK2219
41% late · 33 flights
-
DL1307
26% late · 31 flights
-
NK421
27% late · 31 flights
-
NK2024
33% late · 28 flights
-
DL1567
12% late · 24 flights
-
NK2327
33% late · 24 flights
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