Direct (nonstop) flights from Houston to Louisville
2 airlines fly nonstop from George Bush Intcntl Houston (IAH) to Louisville International Airport (SDF). It's 787 miles (1,267 km), about 2h 22m in the air. Operated by American Airlines, United Airlines.
American Airlines
United Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
AA
American Airlines
UA
United Airlines
Alternative Routes
Other ways to fly from Houston to Louisville with one stop · direct emits 146 kg CO₂ per passenger
Looking for the return flight?
SDF → IAH: Flights from Louisville to HoustonOther direct flights from Houston
Direct flights from Louisville (SDF)
Frequently Asked Questions
How long is the direct flight from Houston to Louisville?
A nonstop flight from Houston (IAH) to Louisville (SDF) takes approximately 2 hours and 22 minutes. The distance is 787 miles (1,267 km).
Which airlines fly nonstop from Houston to Louisville?
2 airlines: American Airlines, United Airlines.
Is there a nonstop flight from Houston to Louisville?
Yes. 2 airlines: American Airlines, United Airlines.
How far is Houston from Louisville?
The flight distance from Houston to Louisville is 787 miles (1,267 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from Houston to Louisville?
At 2h 22m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Houston to Louisville?
Roughly 146 kg CO2 per passenger one-way. That's about the same as driving 730 km.
Is the return flight from Louisville to Houston also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Houston to Louisville?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at George Bush Intcntl Houston for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.