--- title: "Denver (DEN) to Flagstaff (FLG) flights: who flies it" description: "United Airlines flies Denver (DEN) to Flagstaff (FLG) nonstop about 28 times a week, scheduled at 2h. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/den-flg" url: "https://2lnr.com/routes/den-flg.md" date_modified: "2026-10-18T05:10:47Z" --- # Denver to Flagstaff (DEN-FLG): nonstop flights and who flies them United Airlines flies nonstop between Denver (DEN) and Flagstaff (FLG), roughly 28 times a week. The timetable below shows the nonstop scheduled at 2h for the 503 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 21, 2026. See DEN to FLG on the interactive map [Get started free](https://2lnr.com/login) 28 Flights a week, 4-week average 2h Scheduled flight time 503 mi Nonstop distance Free To get started ## Denver to Flagstaff flight schedule Scheduled nonstop departures for DEN to FLG starting October 20, 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 Flagstaff (FLG) | Date | Flight | Airline | Departs DEN | Arrives FLG | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Tue, Aug 10 | UA 5277 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Tue, Aug 10 | UA 5818 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Tue, Aug 10 | UA 5229 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Tue, Aug 10 | UA 5749 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Wed, Aug 11 | UA 5277 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Wed, Aug 11 | UA 5818 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Wed, Aug 11 | UA 5229 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Wed, Aug 11 | UA 5749 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Thu, Aug 12 | UA 5277 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Thu, Aug 12 | UA 5818 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Thu, Aug 12 | UA 5229 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Thu, Aug 12 | UA 5749 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Fri, Aug 13 | UA 5277 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Fri, Aug 13 | UA 5818 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Fri, Aug 13 | UA 5229 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Fri, Aug 13 | UA 5749 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Sat, Aug 14 | UA 5277 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Sat, Aug 14 | UA 5818 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Sat, Aug 14 | UA 5229 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Sat, Aug 14 | UA 5749 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Sun, Aug 15 | UA 5277 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Sun, Aug 15 | UA 5818 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Sun, Aug 15 | UA 5229 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Sun, Aug 15 | UA 5749 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Mon, Aug 16 | UA 5277 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Mon, Aug 16 | UA 5818 | United Airlines | 11:30 | 12:30 | 2h | CR5 | | Mon, Aug 16 | UA 5229 | United Airlines | 19:30 | 20:30 | 2h | CR5 | | Mon, Aug 16 | UA 5749 | United Airlines | 19:30 | 20:30 | 2h | CR5 | Showing all 28 scheduled DEN to FLG departures across 7 days with service, starting October 20, 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 FLG date on the interactive map ## Aircraft on the Denver to Flagstaff nonstop United Airlines flies the Bombardier CRJ on every departure in the schedule table on this page. ## The full DEN to FLG nonstop schedule This page carries the full DEN to FLG 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 FLG nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See DEN to FLG on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Denver to Flagstaff nonstop Carriers operating DEN to FLG 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 FLG on the interactive map → ## Frequently asked questions about DEN to FLG **How long is the flight from Denver (DEN) to Flagstaff (FLG)?** Every departure in the schedule table on this page is scheduled at 2h from Denver (DEN) to Flagstaff (FLG). The nonstop covers about 503 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from DEN to FLG?** United Airlines is currently the only airline flying DEN to FLG nonstop. 2LNR doesn't show award or upgrade space for it on DEN to FLG, so this page carries the schedule rather than a space claim. **How many flights a week are there from DEN to FLG?** About 28 nonstop flights a week run between Denver (DEN) and Flagstaff (FLG) 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 FLG depart?** Scheduled DEN to FLG nonstops in the next 7 days with service leave between 11:30 and 19:30, 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 FLG nonstop?** In the schedule table on this page, DEN to FLG nonstops fly as UA 5229, UA 5277, UA 5749, and UA 5818 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 FLG?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on DEN to FLG. The page carries the full DEN to FLG nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [FLG to DEN nonstop flights](https://2lnr.com/routes/flg-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 Flagstaff (FLG)](https://2lnr.com/routes/flg.md). Nonstops from Denver (DEN) to other airports within 150 miles of Flagstaff (FLG): - [Denver (DEN) to Prescott (PRC)](https://2lnr.com/routes/den-prc.md), 55 miles from FLG - [Denver (DEN) to Phoenix (PHX)](https://2lnr.com/routes/den-phx.md), 120 miles from FLG 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 FLG 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)