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 23m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
UA1506
UA United
319
8:00 AM
EDT
8:59 AM
MDT
2h 59m
M T W T F S S
Prices
UA1180
UA United
319
9:00 AM
EDT
10:08 AM
MDT
3h 8m
M T W T F S S
Prices
UA501
UA United
319
9:00 AM
EDT
10:07 AM
MDT
3h 7m
M T W T F S S
Prices
UA1030
UA United
739
1:05 PM
EDT
2:12 PM
MDT
3h 7m
M T W T F S S
Prices
WN2137
WN Southwest
737
1:10 PM
EDT
2:05 PM
MDT
2h 55m
M T W T F S S
Prices
UA1510+1
UA United
319
3:37 PM
EDT
4:45 PM
MDT
3h 8m
M T W T F S S
Prices
WN3328
WN Southwest
B38M
7:00 PM
EDT
7:53 PM
MDT
2h 53m
M T W T F S S
Prices
WN3422
WN Southwest
7M8
7:00 PM
EDT
7:55 PM
MDT
2h 55m
M T W T F S S
Prices
WN5087
WN Southwest
73H
7:10 PM
EDT
8:05 PM
MDT
2h 55m
M T W T F S S
Prices
UA425
UA United
739
6:45 AM
MDT
11:30 AM
EDT
2h 45m
M T W T F S S
Prices
UA1479
UA United
319
9:44 AM
MDT
2:31 PM
EDT
2h 47m
M T W T F S S
Prices
WN2413
WN Southwest
B38M
11:35 AM
MDT
4:05 PM
EDT
2h 30m
M T W T F S S
Prices
UA1238
UA United
319
12:00 PM
MDT
4:32 PM
EDT
2h 32m
M T W T F S S
Prices
UA514
UA United
319
5:50 PM
MDT
10:31 PM
EDT
2h 41m
M T W T F S S
Prices
WN1531
WN Southwest
7S7
8:00 PM
MDT
12:30 AM+1
EDT
2h 30m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Louisville to Denver
2 carriers, 35 flights/week nonstop.
2 Airlines 35 Flights/wk 1,022 mi 2h 53m nonstop -2h behind 106 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 53m. Beyond nonstop, 106 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 26 319, 739 2h59-3h08 100% Star Alliance
WN Southwest Airlines 9 737, 73H, 7M8, B38M 2h53-2h55 100%
Aircraft on this route
319 Airbus A319 – UA
737 Boeing 737-700 – WN
739 Boeing 737-900 – UA
73H Boeing 737-800 (Winglets) – WN
7M8 Boeing 737 MAX 8 – WN
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Star Alliance: UA (26 flights/wk, 74%)
Unaffiliated: WN (9 flights/wk, 26%)
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
4
flights
Fri
4
flights
Sat
4
flights
Sun
8
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
9
Nonstop flights
35
Outbound / wk
24
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SDF to DEN.
1-STOP
One-Stop Connections
106
Hubs
~4h
Fastest
~30h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
3,438
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.

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 9
Weekly flights 35 15 55
Flight time 2h 53m 3h 2m 2h 34m
Departure OTP 100%
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 53m to 3h 8m.
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 53m to 3h 8m
Time difference-2 hours
Airlines (nonstop)2
Weekly flights35 out / 24 return
1-stop connections106 hubs
Origin: SDF
IATA / ICAOSDF / KSDF
TimezoneAmerica/New_York
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 53m to 3h 8m. 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 24 weekly flights.
Yes, 1-stop connections are available through TUL, SUS, XNA, SBN, OMA, ICT, LNK, MKE, FSD, CMH, MEM, PDK, PVU, CHA, SGR, BHM, MGM, EGE, FAR, MTJ, ABQ, CLE, ASE, ECP, YWG, YYZ, TVF, CHS, ABE, RIC, TEB, HPN, MLI, SAT, BOI, SYR, MHR, TVC, SHV, APF, BCT, ELP, GEG, ONT, YOW, YUL, ALB, BDL, TUS, BFI, SAN, PVD, LGB, OAK, STS, BUR, PDX, PWM, SJC, YVR, JFK, PIT, SJU, RDU, ANC, IAD, MDW, LAS, RSW, ATL, HOU, HND, ORD, SRQ, DAL, HNL, PHX, BNA, MSP, DFW, CLT, DUB, DTW, MCI, MIA, BWI, MCO, AUS, IAH, EWR, SLC, DCA, LAX, MSY, FLL, LGA, PHL, TPA, VPS, BOS, SFO, NRT, JAX, SNA, HCR and PBI. 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 53 minutes to 3 hours 8 minutes. The route covers a distance of 1,022 miles (1,644 km). There are approximately 35 weekly flights outbound and 24 return, totaling 59 flights per week in both directions.

Connecting Options and Alternatives

106 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).