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

SDF Airport Page →
1,022 mi airlines 35/wk
On-time Some delays Frequent delays
Flight Schedule 15 flights Verified 2h ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
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
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

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Louisville to Denver
2 carriers, 35 flights/week nonstop.
2 Airlines 35 Flights/wk 1,022 mi 2h 50m nonstop -2h behind 69 1-stop hubs

SDF–DEN 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 50m. Beyond nonstop, 69 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop SDF–DEN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
UA United Airlines 21 319, 320 3h08-3h17 73% Star Alliance
WN Southwest Airlines 14 738, 73H, 7M8, 7S7 2h50-2h55 73%
Aircraft on this route
319 Airbus A319 – UA
320 Airbus A320 – UA
738 Boeing 737-800 – WN
73H Boeing 737-800 – WN
7M8 Boeing 737 MAX 8 – 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, SDF to DEN 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
8
Nonstop flights
35
Outbound / wk
35
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SDF to DEN.
1-STOP
One-Stop Connections
69
Hubs
~4h
Fastest
~25h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,636
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
SDF → DEN
73%
Moderate delays possible. Allow buffer time.
Departing
73%
Arriving
67%
Return
DEN → SDF
68%
Moderate delays possible. Allow buffer time.
Departing
68%
Arriving
0%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SDF delays → DEN delays →

Other ways to reach Denver from Louisville

Nearby airports with service to Denver International Airport.
Metric SDF→DEN LEX→DEN CVG→DEN
Distance from SDF 62 mi 84 mi
Nonstop airlines 2 1 5
Weekly flights 35 7 44
Flight time 2h 50m 3h 29m 2h 33m
Departure OTP 73%
Airports within 200 miles of SDF with service to Denver International Airport.

Travel Essentials

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

When it's 6:00 PM in Louisville, it's 4:00 PM in Denver.
Distance & Flight Time
1,022 mi / 1,644 km
Nonstop flight time is approximately 2h 50m to 3h 17m.
Getting from DEN

RTD A Line runs to Denver Union Station (37 min, $10.50) with connections to light rail and bus routes. Taxis have meters; expect $55–65 to downtown.DEN's tent-roof Jeppesen Terminal is a single building; all three concourses connect via the underground automated train. Rental cars are on level 5. For ski resorts, shuttle services depart from Ground Transportation.

Denver Climate

Semi-arid with 300+ days of sunshine. Summers are dry and warm (27–34°C) with afternoon thunderstorms that produce dramatic but brief delays. Winters bring cold temperatures (−8 to 5°C) and heavy blizzards that can shut down ground operations.

Spring snowstorms can be heavier than midwinter ones. Altitude (5,430 ft) means low humidity year-round; stay hydrated.

SDF–DEN Quick Facts

Key statistics for the Louisville to Denver route.
Route details
Distance1,022 mi / 1,644 km
Flight time2h 50m to 3h 17m
Time difference-2 hours
Airlines (nonstop)2
Weekly flights35 out / 35 return
1-stop connections69 hubs
Origin: SDF
IATA / ICAOSDF / KSDF
TimezoneAmerica/Kentucky/Louisville
Passengers/yr4.7M
Elevation501 ft / 153 m
Destination: DEN
IATA / ICAODEN / KDEN
TimezoneAmerica/Denver
Passengers/yr82.4M
Elevation5,431 ft / 1,655 m

Frequently Asked Questions

Common questions about SDF to DEN flights.
Nonstop flights from Louisville Muhammad Ali International Airport to Denver International Airport take approximately 2h 50m to 3h 17m. 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 SDF to DEN. The return direction has about 35 weekly flights.
Yes, 1-stop connections are available through TUL, OMA, MKE, MEM, MSY, FAR, CLE, MTJ, ABQ, EGE, SHV, ASE, YWG, YYZ, SAT, BOI, ONT, MHR, ELP, APF, SYR, MLI, SAN, TUS, LAX, ALB, GEG, PBI, SNA, BDL, LGB, BFI, BUR, OAK, SJC, PDX, YVR, SRQ, RDU, SJU, ANC, ATL, IAD, ORD, MSP, HND, PHX, BNA, HNL, CLT, DFW, DCA, PHL, MDW, MCO, IAH, HOU, BWI, EWR, MIA, DTW, DAL, FLL, BOS, TPA, LGA, LAS, RSW and NRT. These options provide additional schedule flexibility.
Denver is 2 hours behind Louisville.
Yes, return flights from DEN to SDF are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include LEX, CVG and IND. 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 SDF to DEN

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

SDF to DEN Flight Duration and Schedule

Nonstop flight time from SDF to DEN ranges from 2 hours 50 minutes to 3 hours 17 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

69 one-stop connections are available, with the fastest taking approximately 4 hours via TUL. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Lexington (LEX), Cincinnati / Covington (CVG) and Indianapolis (IND).