--- title: "Denver (DEN) to Louisville (SDF) flights: who flies it" description: "United Airlines flies Denver (DEN) to Louisville (SDF) nonstop about 14 times a week, scheduled at 2h 44m to 2h 45m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/den-sdf" url: "https://2lnr.com/routes/den-sdf.md" date_modified: "2026-10-18T05:10:47Z" --- # Denver to Louisville (DEN-SDF): nonstop flights and who flies them United Airlines flies nonstop between Denver (DEN) and Louisville (SDF), roughly 14 times a week. In the timetable below it flies as UA 514 and UA 1479, scheduled at 2h 44m to 2h 45m for the 1,022 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See DEN to SDF on the interactive map [Get started free](https://2lnr.com/login) 14 Flights a week, 4-week average 2h 44m to 2h 45m Scheduled flight time 1,022 mi Nonstop distance Free To get started ## Denver to Louisville flight schedule Scheduled nonstop departures for DEN to SDF starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Denver (DEN) to Louisville (SDF) | Date | Flight | Airline | Departs DEN | Arrives SDF | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | UA 1479 | United Airlines | 09:55 | 14:40 | 2h 45m | [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md) | | Fri, Oct 23 | UA 514 | United Airlines | 17:48 | 22:32 | 2h 44m | Airbus A319 | | Sat, Oct 24 | UA 1479 | United Airlines | 09:55 | 14:40 | 2h 45m | [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md) | | Sat, Oct 24 | UA 514 | United Airlines | 17:48 | 22:32 | 2h 44m | Airbus A320 | | Sun, Oct 25 | UA 1479 | United Airlines | 09:55 | 14:40 | 2h 45m | Airbus A320 | | Sun, Oct 25 | UA 514 | United Airlines | 17:48 | 22:32 | 2h 44m | Airbus A320 | | Mon, Oct 26 | UA 1479 | United Airlines | 09:55 | 14:40 | 2h 45m | Airbus A320 | | Mon, Oct 26 | UA 514 | United Airlines | 17:48 | 22:32 | 2h 44m | Airbus A320 | | Tue, Oct 27 | UA 1479 | United Airlines | 09:55 | 14:40 | 2h 45m | Airbus A320 | | Tue, Oct 27 | UA 514 | United Airlines | 17:48 | 22:32 | 2h 44m | Airbus A320 | | Wed, Oct 28 | UA 1479 | United Airlines | 09:55 | 14:40 | 2h 45m | Airbus A320 | | Wed, Oct 28 | UA 514 | United Airlines | 17:48 | 22:32 | 2h 44m | Airbus A320 | | Thu, Oct 29 | UA 1479 | United Airlines | 09:55 | 14:40 | 2h 45m | Airbus A320 | | Thu, Oct 29 | UA 514 | United Airlines | 17:48 | 22:32 | 2h 44m | Airbus A320 | Showing all 14 scheduled DEN to SDF departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every DEN to SDF date on the interactive map ## Aircraft on the Denver to Louisville nonstop United Airlines flies the departures in the schedule table on this page with the [Airbus A320](https://2lnr.com/seatmaps/ua/a320.md) and the [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full DEN to SDF nonstop schedule This page carries the full DEN to SDF nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each DEN to SDF nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See DEN to SDF on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Denver to Louisville nonstop Carriers operating DEN to SDF nonstop in the current schedule. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) See DEN to SDF on the interactive map → ## Frequently asked questions about DEN to SDF **How long is the flight from Denver (DEN) to Louisville (SDF)?** Scheduled flight times from Denver (DEN) to Louisville (SDF) run from 2h 44m to 2h 45m across the departures in the schedule table on this page. The nonstop covers about 1,022 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from DEN to SDF?** United Airlines is currently the only airline flying DEN to SDF nonstop. 2LNR doesn't show award or upgrade space for it on DEN to SDF, so this page carries the schedule rather than a space claim. **How many flights a week are there from DEN to SDF?** About 14 nonstop flights a week run between Denver (DEN) and Louisville (SDF) in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from DEN to SDF depart?** Scheduled DEN to SDF nonstops in the next 7 days with service leave between 09:55 and 17:48, local time at Denver. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate DEN to SDF nonstop?** In the schedule table on this page, DEN to SDF nonstops fly as UA 514 and UA 1479 on United Airlines. The table lists each departure by date with its times and aircraft. **Does 2LNR show upgrade or award space on DEN to SDF?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on DEN to SDF. The page carries the full DEN to SDF nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [SDF to DEN nonstop flights](https://2lnr.com/routes/sdf-den.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Denver (DEN)](https://2lnr.com/routes/den.md), or [every route from Louisville (SDF)](https://2lnr.com/routes/sdf.md). Nonstops from Denver (DEN) to other airports within 150 miles of Louisville (SDF): - [Denver (DEN) to Lexington (LEX)](https://2lnr.com/routes/den-lex.md), 62 miles from SDF - [Denver (DEN) to Cincinnati (CVG)](https://2lnr.com/routes/den-cvg.md), 84 miles from SDF - [Denver (DEN) to Indianapolis (IND)](https://2lnr.com/routes/den-ind.md), 111 miles from SDF - [Denver (DEN) to Dayton (DAY)](https://2lnr.com/routes/den-day.md), 145 miles from SDF Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full DEN to SDF nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)