--- title: "Flagstaff (FLG) to Denver (DEN) flights: who flies it" description: "United Airlines flies Flagstaff (FLG) to Denver (DEN) nonstop about 7 times a week as UA 5713, scheduled at 1h 45m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/flg-den" url: "https://2lnr.com/routes/flg-den.md" date_modified: "2026-10-18T05:10:47Z" --- # Flagstaff to Denver (FLG-DEN): nonstop flights and who flies them United Airlines flies the FLG to DEN nonstop about 7 times a week. In the timetable below it flies as UA 5713, scheduled at 1h 45m 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 FLG to DEN on the interactive map [Get started free](https://2lnr.com/login) 7 Flights a week, 4-week average 1h 45m Scheduled flight time 503 mi Nonstop distance Free To get started ## Flagstaff to Denver flight schedule Scheduled nonstop departures for FLG to DEN 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 Flagstaff (FLG) to Denver (DEN) | Date | Flight | Airline | Departs FLG | Arrives DEN | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Tue, Aug 10 | UA 5713 | United Airlines | 13:30 | 16:15 | 1h 45m | CR5 | | Wed, Aug 11 | UA 5713 | United Airlines | 13:30 | 16:15 | 1h 45m | CR5 | | Thu, Aug 12 | UA 5713 | United Airlines | 13:30 | 16:15 | 1h 45m | CR5 | | Fri, Aug 13 | UA 5713 | United Airlines | 13:30 | 16:15 | 1h 45m | CR5 | | Sat, Aug 14 | UA 5713 | United Airlines | 13:30 | 16:15 | 1h 45m | CR5 | | Sun, Aug 15 | UA 5713 | United Airlines | 13:30 | 16:15 | 1h 45m | CR5 | | Mon, Aug 16 | UA 5713 | United Airlines | 13:30 | 16:15 | 1h 45m | CR5 | Showing all 7 scheduled FLG to DEN 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 FLG to DEN date on the interactive map ## Aircraft on the Flagstaff to Denver nonstop United Airlines flies the Bombardier CRJ on every departure in the schedule table on this page. ## The full FLG to DEN nonstop schedule This page carries the full FLG 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 FLG to DEN nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See FLG to DEN on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Flagstaff to Denver nonstop Carriers operating FLG 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 FLG to DEN on the interactive map → ## Frequently asked questions about FLG to DEN **How long is the flight from Flagstaff (FLG) to Denver (DEN)?** UA 5713 is scheduled at 1h 45m from Flagstaff (FLG) to Denver (DEN) on every departure in the schedule table on this page. 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 FLG to DEN?** United Airlines is currently the only airline flying FLG to DEN nonstop. 2LNR doesn't show award or upgrade space for it on FLG to DEN, so this page carries the schedule rather than a space claim. **How many flights a week are there from FLG to DEN?** About 7 nonstop flights a week run between Flagstaff (FLG) 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 FLG to DEN depart?** In the next 7 days with service, every scheduled FLG to DEN nonstop leaves at 13:30 local time at Flagstaff. The schedule table on this page lists each departure by date. **Which flights operate FLG to DEN nonstop?** United Airlines flies UA 5713 nonstop from Flagstaff (FLG) 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 FLG to DEN?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on FLG to DEN. The page carries the full FLG to DEN nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [DEN to FLG nonstop flights](https://2lnr.com/routes/den-flg.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Flagstaff (FLG)](https://2lnr.com/routes/flg.md), or [every route from Denver (DEN)](https://2lnr.com/routes/den.md). Nonstops to Denver (DEN) from other airports within 150 miles of Flagstaff (FLG): - [Prescott (PRC) to Denver (DEN)](https://2lnr.com/routes/prc-den.md), 55 miles from FLG - [Phoenix (PHX) to Denver (DEN)](https://2lnr.com/routes/phx-den.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 FLG 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)