Direct flights from Houston to Louisville
22 nonstop flights a week on 1 airline. Zero layovers — one hop from IAH to SDF.
Flight time: about 1h47m nonstop
Which days does it fly?
When does it fly?
Departure times in Houston local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| United ASH3990 | 9:54a | 1h47m | Fri |
| United ASH3990 | 10:01a | 1h47m | Tue, Wed, Thu, Sat, Sun |
| United ASH3990 | 10:06a | 1h47m | Mon |
| United ASH3234 | 11:43a | 1h45m | Wed |
| United ASH3985 | 4:33p | 1h47m | Tue |
| United ASH3985 | 4:42p | 1h47m | Thu–Fri |
| United ASH3985 | 4:47p | 1h52m | Mon, Wed |
| United ASH3985 | 5:13p | 1h47m | Sun |
| United ASH4052 | 6:48p | 1h47m | Sat |
| United ASH4052 | 7:02p | 1h55m | Tue, Wed, Thu, Fri, Sun |
| United ASH4052 | 7:32p | 1h46m | Mon |
| United ASH3985 | 8:45p | 1h47m | Sat |
United
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The route
One hop: IAH → SDFDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Houston (IAH) to Louisville (SDF)
George Bush Intercontinental Airport (IAH) has 22 nonstop flights a week to Louisville (SDF), operated by United. No layovers, no connections — one hop out of IAH and you're there.
This route flies every day of the week, so any travel day works. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Houston to Louisville?
The nonstop flight from Houston (IAH) to Louisville (SDF) takes about 1h47m in the air, based on recently observed nonstop departures.
How long does it take to drive from Houston to Louisville?
Driving from Houston to Louisville takes about 14h 25m, covering roughly 953 miles. The nonstop flight takes about 1h47m.