Dulles to Louisville (IAD–SDF) — Airlines, Schedules & Connections

IAD Airport Page →
450 mi airlines 21/wk
On-time Some delays Frequent delays
Flight Schedule 8 flights Verified 39m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
✓
→
UA3980
UA United
E7W
12:50 PM
EDT
2:47 PM
EDT
1h 57m
—
M T W T F S S
Prices
✓
→
CM2666
CM Copa
E75L
5:43 PM
EDT
7:42 PM
EDT
1h 59m
—
M T W T F S S
Prices
✓
→
UA4063
UA United
E75L
8:00 PM
EDT
9:41 PM
EDT
1h 41m
—
M T W T F S S
Prices
✓
←
UA4075
UA United
E7W
9:55 AM
EDT
11:35 AM
EDT
1h 40m
—
M T W T F S S
Prices
✓
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AC4428
AC Air Canada
E7W
9:55 AM
EDT
11:38 AM
EDT
1h 43m
—
M T W T F S S
Prices
✓
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CM2673
CM Copa
E75L
9:55 AM
EDT
11:38 AM
EDT
1h 43m
—
M T W T F S S
Prices
✓
←
UA4021
UA United
E75L
9:55 AM
EDT
11:38 AM
EDT
1h 43m
—
M T W T F S S
Prices
✓
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UA4067
UA United
E75L
2:35 PM
EDT
4:13 PM
EDT
1h 38m
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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...
Dulles to Louisville
2 carriers, 21 flights/week nonstop.
2 Airlines 21 Flights/wk 450 mi 1h 41m nonstop 71 1-stop hubs

IAD–SDF is served by 2 airlines with nonstop service. United Airlines and Copa Airlines lead the route. The flight covers 450 miles in approximately 1h 41m. Beyond nonstop, 71 hubs offer 1-stop connections.

Also explore IAD Routes SDF Routes IAD Live Flights SDF Live Flights IAD Delays SDF Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop IAD–SDF service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines 14 E75L, E7W 1h41-1h57 62% Star Alliance –
CM Copa Airlines 7 E75L 1h59 62% Star Alliance –
Aircraft on this route
E75L Embraer E175 Long Wing – CM, UA
E7W Embraer E175 – UA
Alliance coverage
Star Alliance: CM + UA (21 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, IAD to SDF direction.
Mon
3
flights
Tue
3
flights
Wed
3
flights
Thu
3
flights
Fri
3
flights
Sat
3
flights
Sun
3
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
3
Nonstop flights
21
Outbound / wk
35
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for IAD to SDF.
1-STOP
One-Stop Connections
71
Hubs
~3h
Fastest
~36h
Longest
PTK ~3h 30m ROA ~3h 33m CMH ~3h 34m MDT ~3h 41m CLE ~3h 47m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,419
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.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
IAD → SDF
62%
Moderate delays possible. Allow buffer time.
Departing
62%
Arriving
89%
Return
SDF → IAD
27%
Frequent delays expected. Consider flexible booking.
Departing
27%
Arriving
64%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAD delays → SDF delays →
Alternatives

Other ways to reach Louisville from Dulles

Nearby airports with service to Louisville Muhammad Ali International Airport.
Metric IAD→SDF DCA→SDF BWI→SDF
Distance from IAD – 23 mi 45 mi
Nonstop airlines 2 4 3
Weekly flights 21 49 33
Flight time 1h 41m 1h 56m 1h 38m
Departure OTP 62% – –
Washington (DCA) to Louisville flights · Baltimore (BWI) to Louisville flights · Harrisburg (MDT) to Louisville flights
Airports within 200 miles of IAD with service to Louisville Muhammad Ali International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Louisville is 0 hours the same as Dulles.
IAD: EDT · SDF: EDT

When it's 6:00 PM in Dulles, it's 6:00 PM in Louisville.
Distance & Flight Time
450 mi / 725 km
Nonstop flight time is approximately 1h 41m to 1h 59m.
Getting to IAD

WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).

Facts

IAD–SDF Quick Facts

Key statistics for the Dulles to Louisville route.
Route details
Distance450 mi / 725 km
Flight time1h 41m to 1h 59m
Time difference0 hours
Airlines (nonstop)2
Weekly flights21 out / 35 return
1-stop connections71 hubs
Origin: IAD
Full nameWashington Dulles International Airport
IATA / ICAOIAD / KIAD
TimezoneAmerica/New_York
Passengers/yr26.0M
Elevation312 ft / 95 m
Destination: SDF
Full nameLouisville Muhammad Ali International Airport
IATA / ICAOSDF / KSDF
TimezoneAmerica/Kentucky/Louisville
Passengers/yr4.7M
Elevation501 ft / 153 m
FAQ

Frequently Asked Questions

Common questions about IAD to SDF flights.
Nonstop flights from Washington Dulles International Airport to Louisville Muhammad Ali International Airport take approximately 1h 41m to 1h 59m. The route covers 450 miles.
2 airlines operate nonstop service: Copa Airlines and United Airlines.
There are approximately 21 nonstop flights per week from IAD to SDF. The return direction has about 35 weekly flights.
Yes, 1-stop connections are available through PTK, ROA, CMH, MDT, CLE, BWI, IND, RIC, CVG, TYS, PDK, TEB, LAN, MEM, CAE, DCA, MDW, SYR, YYZ, SAV, YMX, OKC, ECP, ALB, ISM, CHS, JAX, TUL, PIE, ICT, SFB, PBI, ADS, APF, BCT, SRQ, PGD, HOU, AUS, DAL, MSY, EYW, SAT, EGE, YVR, SJC, OAK, ATL, FLL, EWR, PHL, MIA, ORD, DTW, MSP, CLT, CGN, BNA, RDU, BOS, SLC, LGA, MCO, TPA, PHX, DFW, IAH, DEN, RSW, LAS and HND. These options provide additional schedule flexibility.
Yes, return flights from SDF to IAD are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include DCA, BWI and MDT. 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 IAD to SDF

Washington Dulles International Airport (IAD) and Louisville Muhammad Ali International Airport (SDF) are connected by nonstop service from Copa Airlines and United Airlines. With 21 weekly departures, this is a well served route.

IAD to SDF Flight Duration and Schedule

Nonstop flight time from IAD to SDF ranges from 1 hours 41 minutes to 1 hours 59 minutes. The route covers a distance of 450 miles (725 km). There are approximately 21 weekly flights outbound and 35 return, totaling 56 flights per week in both directions.

Connecting Options and Alternatives

71 one-stop connections are available, with the fastest taking approximately 3 hours via PTK. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Baltimore (BWI) and Harrisburg (MDT).