--- title: "Dayton (DAY) to Denver (DEN) flights: who flies it" description: "United Airlines flies Dayton (DAY) to Denver (DEN) nonstop about 7 times a week as UA 1235, scheduled at 3h 3m to 3h 17m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/day-den" url: "https://2lnr.com/routes/day-den.md" date_modified: "2026-10-18T05:10:47Z" --- # Dayton to Denver (DAY-DEN): nonstop flights and who flies them United Airlines flies the DAY to DEN nonstop about 7 times a week. In the timetable below it flies as UA 1235, scheduled at 3h 3m to 3h 17m for the 1,083 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 DAY to DEN on the interactive map [Get started free](https://2lnr.com/login) 7 Flights a week, 4-week average 3h 3m to 3h 17m Scheduled flight time 1,083 mi Nonstop distance Free To get started ## Dayton to Denver flight schedule Scheduled nonstop departures for DAY to DEN starting October 22, 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 Dayton (DAY) to Denver (DEN) | Date | Flight | Airline | Departs DAY | Arrives DEN | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | UA 1235 | United Airlines | 09:30 | 10:33 | 3h 3m | [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md) | | Fri, Oct 23 | UA 1235 | United Airlines | 09:30 | 10:33 | 3h 3m | Airbus A319 | | Sat, Oct 24 | UA 1235 | United Airlines | 09:30 | 10:33 | 3h 3m | Airbus A319 | | Sun, Oct 25 | UA 1235 | United Airlines | 08:00 | 09:17 | 3h 17m | Airbus A319 | | Mon, Oct 26 | UA 1235 | United Airlines | 08:00 | 09:17 | 3h 17m | Airbus A319 | | Tue, Oct 27 | UA 1235 | United Airlines | 08:00 | 09:17 | 3h 17m | Airbus A319 | | Wed, Oct 28 | UA 1235 | United Airlines | 08:00 | 09:17 | 3h 17m | Airbus A319 | Showing all 7 scheduled DAY to DEN departures across 7 days with service, starting October 22, 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 DAY to DEN date on the interactive map ## Aircraft on the Dayton to Denver nonstop United Airlines flies the [Airbus A319](https://2lnr.com/seatmaps/ua/a319.md) on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full DAY to DEN nonstop schedule This page carries the full DAY to DEN nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each DAY to DEN nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See DAY to DEN on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Dayton to Denver nonstop Carriers operating DAY to DEN 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 DAY to DEN on the interactive map → ## Frequently asked questions about DAY to DEN **How long is the flight from Dayton (DAY) to Denver (DEN)?** Scheduled flight times from Dayton (DAY) to Denver (DEN) run from 3h 3m to 3h 17m across the departures in the schedule table on this page. The nonstop covers about 1,083 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from DAY to DEN?** United Airlines is currently the only airline flying DAY to DEN nonstop. 2LNR doesn't show award or upgrade space for it on DAY to DEN, so this page carries the schedule rather than a space claim. **How many flights a week are there from DAY to DEN?** About 7 nonstop flights a week run between Dayton (DAY) and Denver (DEN) 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 DAY to DEN depart?** Scheduled DAY to DEN nonstops in the next 7 days with service leave between 08:00 and 09:30, local time at Dayton. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate DAY to DEN nonstop?** United Airlines flies UA 1235 nonstop from Dayton (DAY) to Denver (DEN), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft. **Does 2LNR show upgrade or award space on DAY to DEN?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on DAY to DEN. The page carries the full DAY to DEN nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [DEN to DAY nonstop flights](https://2lnr.com/routes/den-day.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Dayton (DAY)](https://2lnr.com/routes/day.md), or [every route from Denver (DEN)](https://2lnr.com/routes/den.md). Nonstops to Denver (DEN) from other airports within 150 miles of Dayton (DAY): - [Cincinnati (CVG) to Denver (DEN)](https://2lnr.com/routes/cvg-den.md), 63 miles from DAY - [Columbus (CMH) to Denver (DEN)](https://2lnr.com/routes/cmh-den.md), 71 miles from DAY - [Indianapolis (IND) to Denver (DEN)](https://2lnr.com/routes/ind-den.md), 111 miles from DAY - [Lexington (LEX) to Denver (DEN)](https://2lnr.com/routes/lex-den.md), 131 miles from DAY - [Louisville (SDF) to Denver (DEN)](https://2lnr.com/routes/sdf-den.md), 145 miles from DAY 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 DAY to DEN 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)