Denver to Louisville (DEN–SDF) — Airlines, Schedules & Connections

DEN Airport Page →
1,022 mi airlines 35/wk
On-time Some delays Frequent delays
Flight Schedule 15 flights Verified 8h ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
UA1479
UA United
319
9:40 AM
MDT
2:19 PM
EDT
2h 39m
M T W T F S S
Prices
WN1251
WN Southwest
7S7
10:25 AM
MDT
2:55 PM
EDT
2h 30m
M T W T F S S
Prices
WN2413
WN Southwest
7S7
11:20 AM
MDT
3:50 PM
EDT
2h 30m
M T W T F S S
Prices
WN2755
WN Southwest
738
1:04 PM
MDT
5:27 PM
EDT
2h 23m
M T W T F S S
Prices
WN1925
WN Southwest
73H
1:17 PM
MDT
5:38 PM
EDT
2h 21m
M T W T F S S
Prices
UA421
UA United
319
5:21 PM
MDT
9:50 PM
EDT
2h 29m
M T W T F S S
Prices
UA1293
UA United
319
5:58 PM
MDT
10:39 PM
EDT
2h 41m
M T W T F S S
Prices
UA295
UA United
319
8:54 AM
EDT
10:11 AM
MDT
3h 17m
M T W T F S S
Prices
UA1180
UA United
320
9:00 AM
EDT
10:08 AM
MDT
3h 8m
M T W T F S S
Prices
WN2137
WN Southwest
7S7
1:10 PM
EDT
2:05 PM
MDT
2h 55m
M T W T F S S
Prices
WN1536
WN Southwest
73H
1:30 PM
EDT
2:25 PM
MDT
2h 55m
M T W T F S S
Prices
WN1008
WN Southwest
7S7
2:40 PM
EDT
3:35 PM
MDT
2h 55m
M T W T F S S
Prices
UA1510
UA United
319
3:15 PM
EDT
4:32 PM
MDT
3h 17m
M T W T F S S
Prices
WN2837
WN Southwest
738
3:35 PM
EDT
4:30 PM
MDT
2h 55m
M T W T F S S
Prices
WN3328
WN Southwest
7M8
6:40 PM
EDT
7:30 PM
MDT
2h 50m
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...
Denver to Louisville
2 carriers, 35 flights/week nonstop.
2 Airlines 35 Flights/wk 1,022 mi 2h 21m nonstop +2h ahead 64 1-stop hubs

DEN–SDF is served by 2 airlines with nonstop service. United Airlines and Southwest Airlines lead the route. The flight covers 1,022 miles in approximately 2h 21m. Beyond nonstop, 64 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop DEN–SDF service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines 21 319 2h29-2h41 76% Star Alliance
WN Southwest Airlines 14 738, 73H, 7S7 2h21-2h30 76%
Aircraft on this route
319 Airbus A319 – UA
738 Boeing 737-800 – WN
73H Boeing 737-800 – WN
7S7 Boeing 737 MAX 7 – WN
Alliance coverage
Star Alliance: UA (21 flights/wk, 60%)
Unaffiliated: WN (14 flights/wk, 40%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, DEN to SDF direction.
Mon
5
flights
Tue
5
flights
Wed
5
flights
Thu
5
flights
Fri
5
flights
Sat
5
flights
Sun
5
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
7
Nonstop flights
35
Outbound / wk
35
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for DEN to SDF.
1-STOP
One-Stop Connections
64
Hubs
~3h
Fastest
~33h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,588
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
DEN → SDF
76%
Generally reliable. Most flights run on time.
Departing
76%
Arriving
84%
Return
SDF → DEN
0%
Frequent delays expected. Consider flexible booking.
Departing
0%
Arriving
82%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. DEN delays → SDF delays →

Other ways to reach Louisville from Denver

Nearby airports with service to Louisville Muhammad Ali International Airport.
Metric DEN→SDF EGE→SDF
Distance from DEN 120 mi
Nonstop airlines 2 2
Weekly flights 35 1
Flight time 2h 21m 2h 47m
Departure OTP 76%
Airports within 200 miles of DEN with service to Louisville Muhammad Ali International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
+2h
Louisville is 2 hours ahead of Denver.
DEN: MDT · SDF: EDT

When it's 6:00 PM in Denver, it's 8:00 PM in Louisville.
Distance & Flight Time
1,022 mi / 1,644 km
Nonstop flight time is approximately 2h 21m to 2h 41m.
Getting to DEN

RTD A Line commuter rail runs from Denver Union Station to the airport (37 min, $10.50). Trains depart every 15 minutes during peak hours. The airport is 25 miles northeast of downtown; ride-shares cost $35–55 and take 30–45 minutes depending on I-70 traffic.Economy parking in lots 4–6 connects via free shuttle. Mountain shuttle services depart from Jeppesen Terminal's Ground Transportation level.

DEN–SDF Quick Facts

Key statistics for the Denver to Louisville route.
Route details
Distance1,022 mi / 1,644 km
Flight time2h 21m to 2h 41m
Time difference+2 hours
Airlines (nonstop)2
Weekly flights35 out / 35 return
1-stop connections64 hubs
Origin: DEN
IATA / ICAODEN / KDEN
TimezoneAmerica/Denver
Passengers/yr82.4M
Elevation5,431 ft / 1,655 m
Destination: SDF
IATA / ICAOSDF / KSDF
TimezoneAmerica/Kentucky/Louisville
Passengers/yr4.7M
Elevation501 ft / 153 m

Frequently Asked Questions

Common questions about DEN to SDF flights.
Nonstop flights from Denver International Airport to Louisville Muhammad Ali International Airport take approximately 2h 21m to 2h 41m. The route covers 1,022 miles.
2 airlines operate nonstop service: United Airlines and Southwest Airlines.
There are approximately 35 nonstop flights per week from DEN to SDF. The return direction has about 35 weekly flights.
Yes, 1-stop connections are available through ICT, OKC, IND, CVG, MEM, AUS, CMH, TYS, PDK, CLE, EGE, TUL, MLI, YWG, MSN, SAV, SAT, YYZ, RIC, PIT, JAX, SYR, BOI, TEB, MSY, ECP, MTY, CHS, ALB, PBI, ONT, SJC, OAK, YVR, ANC, ATL, MIA, DFW, BNA, IAH, CLT, ORD, MSP, BWI, PHX, MDW, IAD, DTW, EWR, DAL, FLL, HOU, MCO, LAS, PHL, TPA, SRQ, SLC, BOS, DCA, RDU, LGA, RSW and HND. These options provide additional schedule flexibility.
Louisville is 2 hours ahead of Denver.
Yes, return flights from SDF to DEN are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include EGE. 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 DEN to SDF

Denver International Airport (DEN) and Louisville Muhammad Ali International Airport (SDF) are connected by nonstop service from United Airlines and Southwest Airlines. With 35 weekly departures, this is a heavily served route.

DEN to SDF Flight Duration and Schedule

Nonstop flight time from DEN to SDF ranges from 2 hours 21 minutes to 2 hours 41 minutes. The route covers a distance of 1,022 miles (1,644 km). There are approximately 35 weekly flights outbound and 35 return, totaling 70 flights per week in both directions.

Connecting Options and Alternatives

64 one-stop connections are available, with the fastest taking approximately 3 hours via ICT. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Eagle (EGE).