IAH to DTW flight delays
Houston, TX (IAH) Detroit, MI (DTW) · 1,075 miles
173 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics
73.84%
Arrived on time
Within 15 minutes of schedule
0.58%
Cancelled
Share of scheduled flights
56 min
When late, late by
Average across delayed arrivals
16 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Only Delta Air Lines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Houston to Detroit run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over March 2025 – August 2026, Delta Air Lines arrived on time most often on IAH to DTW.
Every airline on IAH to DTW
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 113 | 76.11% | 0% | 48 min | C |
| Frontier Airlines | 30 | 68.97% | 3.33% | 48 min | — |
| United Airlines | 30 | 70% | 0% | 85 min | — |
The return leg
DTW to IAH Detroit back to Houston 71.1% on time COther routes from Houston
Common questions
Are flights from Houston to Detroit usually delayed?
73.84% of flights on the IAH to DTW route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Houston to Detroit?
Only Delta Air Lines appears in the published record on this route, with 113 flights and 76.11% arriving on time.
How often are IAH to DTW flights cancelled?
0.58% of scheduled flights did not operate — about 6 in every thousand. That is in the normal range.
When IAH to DTW flights are late, how late are they?
About 56 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on IAH to DTW during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →