Houston to Louisville (IAH–SDF) — Airlines, Schedules & Connections

IAH Airport Page →
788 mi airlines 44/wk
On-time Some delays Frequent delays
Flight Schedule 13 flights Verified 37m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
UA3234
UA United
8:55 AM
CDT
12:07 PM
EDT
2h 12m
M T W T F S S
Prices
UA3990
UA United
E75L
11:06 AM
CDT TB
2:15 PM
EDT
2h 9m
M T W T F S S
Prices
CM1681
CM Copa
E7W
5:15 PM
CDT TB
8:31 PM
EDT
2h 16m
M T W T F S S
Prices
UA4050
UA United
E7W
6:10 PM
CDT TB
9:38 PM
EDT
2h 28m
M T W T F S S
Prices
UA4052
UA United
E7W
6:32 PM
CDT TB
9:59 PM
EDT
2h 27m
M T W T F S S
Prices
UA4018
UA United
E75L
6:37 PM
CDT TB
9:59 PM
EDT
2h 22m
M T W T F S S
Prices
CM1680
CM Copa
E7W
6:57 PM
CDT TB
10:19 PM
EDT
2h 22m
M T W T F S S
Prices
UA6266
UA United
E75L
6:00 AM
EDT
7:48 AM
CDT
2h 48m
M T W T F S S
Prices
CM1686
CM Copa
E7W
6:00 AM
EDT
7:48 AM
CDT
2h 48m
M T W T F S S
Prices
CM1687
CM Copa
E7W
8:00 AM
EDT
9:49 AM
CDT
2h 49m
M T W T F S S
Prices
UA6326
UA United
E7W
9:15 AM
EDT
11:02 AM
CDT
2h 47m
M T W T F S S
Prices
UA4040
UA United
E7W
9:15 AM
EDT
11:04 AM
CDT
2h 49m
M T W T F S S
Prices
UA6310
UA United
E75L
6:05 PM
EDT
8:40 PM
CDT
3h 35m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Houston to Louisville
2 carriers, 44 flights/week nonstop.
2 Airlines 44 Flights/wk 788 mi 1h 42m nonstop +1h ahead 62 1-stop hubs

IAH–SDF is served by 2 airlines with nonstop service. United Airlines and Copa Airlines lead the route. The flight covers 788 miles in approximately 1h 42m. Beyond nonstop, 62 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop IAH–SDF service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines 28 E75L, E7W 2h09-2h28 80% Star Alliance
CM Copa Airlines 14 E7W 2h16-2h22 80% Star Alliance
Aircraft on this route
E75L Embraer E175 Long Wing – UA
E7W Embraer E175 – CM, UA
Alliance coverage
Star Alliance: CM + UA (42 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, IAH to SDF direction.
Mon
6
flights
Tue
5
flights
Wed
6
flights
Thu
7
flights
Fri
6
flights
Sat
6
flights
Sun
6
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
7
Nonstop flights
44
Outbound / wk
43
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for IAH to SDF.
1-STOP
One-Stop Connections
62
Hubs
~3h
Fastest
~36h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,555
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
IAH → SDF
80%
Generally reliable. Most flights run on time.
Departing
80%
Arriving
74%
Return
SDF → IAH
67%
Moderate delays possible. Allow buffer time.
Departing
67%
Arriving
88%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAH delays → SDF delays →

Other ways to reach Louisville from Houston

Nearby airports with service to Louisville Muhammad Ali International Airport.
Metric IAH→SDF HOU→SDF AUS→SDF
Distance from IAH 24 mi 140 mi
Nonstop airlines 2 1 1
Weekly flights 44 13 1
Flight time 1h 42m 2h 5m 0h 58m
Departure OTP 80%
Airports within 200 miles of IAH with service to Louisville Muhammad Ali International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Louisville is 1 hour ahead of Houston.
IAH: CDT · SDF: EDT

When it's 6:00 PM in Houston, it's 7:00 PM in Louisville.
Distance & Flight Time
788 mi / 1,268 km
Nonstop flight time is approximately 1h 42m to 2h 28m.
Getting to IAH

IAH has no direct rail link to downtown Houston. The IAH Express bus runs from Houston Amtrak/Greyhound station via Park & Ride to Terminal C (60–90 min, $1.25 with METRO Q card). This is the only transit option; Houston's rail network does not reach the airport.Taxis from downtown Houston cost $50–70 and take 40–60 minutes. Ride-hails (Uber, Lyft) are typically $35–55. IAH sits 23 miles north of downtown on the North Freeway (I-45); traffic is heavy during morning and evening rush. Remote economy parking lots serve all terminals via shuttle.

IAH–SDF Quick Facts

Key statistics for the Houston to Louisville route.
Route details
Distance788 mi / 1,268 km
Flight time1h 42m to 2h 28m
Time difference+1 hour
Airlines (nonstop)2
Weekly flights44 out / 43 return
1-stop connections62 hubs
Origin: IAH
IATA / ICAOIAH / KIAH
TimezoneAmerica/Indiana/Tell_City
Passengers/yr46.7M
Elevation97 ft / 30 m
Destination: SDF
IATA / ICAOSDF / KSDF
TimezoneAmerica/Kentucky/Louisville
Passengers/yr4.7M
Elevation501 ft / 153 m

Frequently Asked Questions

Common questions about IAH to SDF flights.
Nonstop flights from George Bush Intercontinental Airport to Louisville Muhammad Ali International Airport take approximately 1h 42m to 2h 28m. The route covers 788 miles.
2 airlines operate nonstop service: Copa Airlines and United Airlines.
There are approximately 44 nonstop flights per week from IAH to SDF. The return direction has about 43 weekly flights.
Yes, 1-stop connections are available through OKC, AUS, ICT, MEM, IND, TYS, CVG, GPT, SAV, CMH, SAT, ECP, CLE, JAX, MSY, TUL, DAL, RFD, LRD, RIC, APF, SFB, MTY, PIT, CHS, YYZ, PBI, YMX, EYW, EGE, ALB, ONT, SJC, YVR, SLC, FLL, ANC, DTW, RSW, ATL, MIA, DEN, DFW, CLT, ORD, PHL, BNA, BWI, MSP, MDW, DCA, SRQ, PHX, EWR, MCO, IAD, BOS, LAS, TPA, LGA, RDU and HND. These options provide additional schedule flexibility.
Louisville is 1 hour ahead of Houston.
Yes, return flights from SDF to IAH are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include HOU and AUS. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from IAH to SDF

George Bush Intercontinental Airport (IAH) and Louisville Muhammad Ali International Airport (SDF) are connected by nonstop service from Copa Airlines and United Airlines. With 44 weekly departures, this is a heavily served route.

IAH to SDF Flight Duration and Schedule

Nonstop flight time from IAH to SDF ranges from 1 hours 42 minutes to 2 hours 28 minutes. The route covers a distance of 788 miles (1,268 km). There are approximately 44 weekly flights outbound and 43 return, totaling 87 flights per week in both directions.

Connecting Options and Alternatives

62 one-stop connections are available, with the fastest taking approximately 3 hours via OKC. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Houston (HOU) and Austin (AUS).