Houston to Detroit (IAH-DTW): Nonstop Upgrade & Award Space
Delta Air Lines, United Airlines, and Frontier Airlines fly nonstop between Houston (IAH) and Detroit (DTW), roughly 55 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every IAH to DTW departure, so you know which flights have space before you book.
Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.
Confirmed upgrade & award space on every IAH to DTW departure
2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Houston to Detroit to see which departures have real space, or watch the route and get alerted when space opens.
See real availability
Confirmed upgrade and award seats on each IAH to DTW departure, checked against live inventory so you know what is open before you book.
Set an alert
Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.
Plan on the map
See IAH to DTW on the interactive route map, with schedules, connections, and route statistics.
Airlines flying Houston to Detroit nonstop
Carriers operating IAH to DTW nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.
- Delta Air Lines
- United Airlines
- Frontier Airlines
Frequently asked questions about IAH to DTW
How far is Detroit from Houston?
Which airlines fly nonstop from IAH to DTW?
How many flights a week are there from IAH to DTW?
How do I check upgrade or award availability on IAH to DTW?
Never miss IAH to DTW upgrade or award space
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