Louisville to Washington (SDF-IAD): nonstop flights and who flies them

United Airlines flies nonstop between Louisville (SDF) and Washington (IAD), roughly 25 times a week. The timetable below shows the nonstop scheduled at 1h 35m to 1h 42m for the 451 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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25
Flights a week, 4-week average
1h 35m to 1h 42m
Scheduled flight time
451 mi
Nonstop distance
Free
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Louisville to Washington flight schedule

Scheduled nonstop departures for SDF to IAD starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Louisville (SDF) to Washington (IAD)
Date Flight Airline Departs SDF Arrives IAD Duration Aircraft
UA 6305United Airlines06:0007:351h 35mEmbraer E175
UA 3508United Airlines10:0011:421h 42mEmbraer E175
UA 4067United Airlines14:1215:501h 38mEmbraer E175
UA 6305United Airlines06:0007:351h 35mEmbraer E175
UA 3508United Airlines10:0011:421h 42mEmbraer E175
UA 4067United Airlines14:1215:501h 38mEmbraer E175
UA 4059United Airlines10:0011:421h 42mEmbraer E175
UA 4067United Airlines14:1215:501h 38mEmbraer E175
UA 3660United Airlines05:5007:281h 38mEmbraer E175
UA 4059United Airlines09:5511:331h 38mEmbraer E175
UA 3508United Airlines10:0011:421h 42mEmbraer E175
UA 4067United Airlines14:1215:501h 38mEmbraer E175
UA 3660United Airlines05:5007:281h 38mEmbraer E175
UA 4059United Airlines09:5511:331h 38mEmbraer E175
UA 3508United Airlines10:0011:421h 42mEmbraer E175
UA 4067United Airlines14:1215:501h 38mEmbraer E175
UA 4059United Airlines09:5511:331h 38mEmbraer E175
UA 3508United Airlines10:0011:421h 42mEmbraer E175
UA 4067United Airlines14:1215:501h 38mEmbraer E175
UA 4059United Airlines09:5511:331h 38mEmbraer E175
UA 3508United Airlines10:0011:421h 42mEmbraer E175
UA 4067United Airlines14:1215:501h 38mEmbraer E175

Showing all 22 scheduled SDF to IAD departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every SDF to IAD date on the interactive map

Aircraft on the Louisville to Washington nonstop

United Airlines flies the Embraer E175 on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full SDF to IAD nonstop schedule

This page carries the full SDF to IAD nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each SDF to IAD nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See SDF to IAD on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Louisville to Washington nonstop

Carriers operating SDF to IAD nonstop in the current schedule.

See SDF to IAD on the interactive map →

Frequently asked questions about SDF to IAD

How long is the flight from Louisville (SDF) to Washington (IAD)?
Scheduled flight times from Louisville (SDF) to Washington (IAD) run from 1h 35m to 1h 42m across the departures in the schedule table on this page. The nonstop covers about 451 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from SDF to IAD?
United Airlines is currently the only airline flying SDF to IAD nonstop. 2LNR doesn't show award or upgrade space for it on SDF to IAD, so this page carries the schedule rather than a space claim.
How many flights a week are there from SDF to IAD?
About 25 nonstop flights a week run between Louisville (SDF) and Washington (IAD) in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SDF to IAD depart?
Scheduled SDF to IAD nonstops in the next 7 days with service leave between 05:50 and 14:12, local time at Louisville. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate SDF to IAD nonstop?
In the schedule table on this page, SDF to IAD nonstops fly as UA 3508, UA 3660, UA 4059, UA 4067, and UA 6305 on United Airlines. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on SDF to IAD?
Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on SDF to IAD. The page carries the full SDF to IAD nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full SDF to IAD nonstop schedule

Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro.

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