United Airlines
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United States
Washington Dulles International Airport
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United States
Louisville International Airport (Standiford Field)
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Scan through all non-stop flights from Washington to Louisville. The full flight schedule below gives an overview of all non-stop flights from IAD to SDF, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Louisville is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Louisville any time of the year, but the best months to explore are from to and from to .
Currently, there is only one airline operating non-stop flights from Washington IAD to Louisville SDF, which is United Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their IAD SDF flight schedule.
Flights from IAD to SDF are operated 5 times a week, with an average of 1 flight per day. Departure times vary between 08:31 - 22:08. The earliest flight departs at 08:31, the last flight departs at 22:08. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Washington to Louisville takes 1 hour and 54 minutes. The flight distance between Washington and Louisville is 450 miles (or 724 km).
There is 1 airport in Louisville: Louisville International Airport (Standiford Field) (SDF).
There are 5 flights per week flying from Washington to Louisville (as of March 2026).
1 hour and 54 minutes is the average flight time from Washington to Louisville.
The distance from Washington to Louisville is 450 miles (724 kilometers).
United Airlines is the only airline flying nonstop from Washington to Louisville.
Star Alliance is currently the only alliance flying nonstop from Washington to Louisville.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Washington to Louisville:
The earliest flight departs at 08:31 from Washington and arrives at 10:23 at Louisville.
The latest flight departs at 22:08 from Washington and arrives at 23:59 at Louisville.
450 miles (724 km) · 1h 54m
12:50
14:47
United Airlines
Star Alliance
UA 3980
United Airlines
Embraer 175
Y
W
J
F
17:45
19:42
United Airlines
Star Alliance
UA 4063
United Airlines
Embraer 175
Y
W
J
F
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