Route guide

Louisville to Houston (SDF-HOU): Nonstop Upgrade & Award Space

Southwest Airlines flies nonstop from Louisville (SDF) to Houston (HOU) just three times a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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3
Nonstop flights a week
803 mi
Nonstop distance
Free
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Confirmed upgrade & award space on every SDF to HOU 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 Louisville to Houston 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 SDF to HOU 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 SDF to HOU on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Louisville to Houston nonstop

Carriers operating SDF to HOU nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Southwest Airlines
See SDF to HOU on the interactive map →

Frequently asked questions about SDF to HOU

How far is Houston from Louisville?
SDF to HOU covers about 803 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SDF to HOU?
Southwest Airlines is currently the only airline flying SDF to HOU nonstop. 2LNR tracks confirmed upgrade and award space on every Southwest Airlines departure.
How often does SDF to HOU operate?
The nonstop currently runs three times a week, on Southwest Airlines. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on SDF to HOU?
Open the SDF to HOU calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Louisville to Houston route, and 2LNR will notify you when space opens. It's free to start.

Never miss SDF to HOU upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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