UA2390United AirlinesIn the air, 19 min late
Left SDF at 08:14, 19 min after its 07:55 slot.
- Landing
- 08:45DEN board estimate · sched 08:53
live
Direct flights from Louisville (SDF) to Denver (DEN): 17 nonstop departures observed each week across 3 airlines. 100% of the last 10 operated flights arrived within 15 minutes of schedule. The median arrival is 11 minutes early. No cancellations were recorded across the 10 tracked flights. The nonstop covers 1,644 km, an estimated 2 hours 36 minutes in the air. Measured by Pro Flight Search from live flight boards at Louisville and Denver. Updated 24 October 2026 at 14:03 UTC.
Today, SDF → DEN
Sat 24 Oct · local times- 07:55 UA2390United Airlines Left 08:14 +19 DEN est. 08:45In the air · sched 08:53
- 12:55 WN1799Southwest Airlines On schedule DEN 13:50scheduled
- · UA1510United Airlines On schedule DEN 16:35scheduled
Checked SDF board 10:03 · DEN board 07:59
SDF
Louisville
busy · +15
DEN
Denver
smooth · +0
1,644 km · ~2h 36m est.
Runs reliable · 3 airlines · 17x weekly · nonstop
100% on time
of the last 10 operated SDF → DEN flights arrived within 15 minutes
Median arrival delay is −11 min. 0 of 10 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−11 minacross the last 10 operated legs
Flight time~2h 36mestimated from route distance
Weekly departures17x3 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 10
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air LinesSouthwest AirlinesUnited Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at SDF and DEN: 43% odds of a 15+ minute delay and around +10 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Louisville to Denver route actually runs
Pro Flight Search records official board updates for nonstop SDF to DEN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Louisville (SDF) to Denver (DEN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SDF-DEN
SDF to DEN questions
Is SDF–DEN running on time right now?
Smooth skies ahead. The departure side at SDF is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SDF–DEN?
Operators schedule morning departures around 08:00 and evening departures around 17:38 from SDF. Earlier flights typically land before destination-airport delays accumulate later in the day; check the DEN delay card to confirm conditions when you'd arrive.
How long is the flight from SDF to DEN?
Great-circle distance is 1,644 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 146–171 min gate-to-gate on this route.
How often does SDF–DEN fly?
3 carriers operate this route, around 24 flights a week between them. Compare carrier days and times in the airline list above.
.