Denver to Alliance (DEN-AIA): nonstop flights and who flies them

Key Lime Air flies the DEN to AIA nonstop about 9 times a week. In the timetable below it flies as KG 4210 and KG 4230, scheduled at 1h for the 180 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

See DEN to AIA on the interactive map Get started free
9
Flights a week, 4-week average
1h
Scheduled flight time
180 mi
Nonstop distance
Free
To get started

Denver to Alliance flight schedule

Scheduled nonstop departures for DEN to AIA 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.

Schedule data dated .

Scheduled nonstop departures from Denver (DEN) to Alliance (AIA)
Date Flight Airline Departs DEN Arrives AIA Duration Aircraft
KG 4210Key Lime Air11:3012:301hSWM
KG 4230Key Lime Air19:0020:001hSWM
KG 4210Key Lime Air11:3012:301hSWM
KG 4230Key Lime Air19:0020:001hSWM
KG 4210Key Lime Air11:3012:301hSWM
KG 4230Key Lime Air19:0020:001hSWM
KG 4210Key Lime Air11:3012:301hSWM
KG 4230Key Lime Air19:0020:001hSWM
KG 4210Key Lime Air11:3012:301hSWM
KG 4230Key Lime Air19:0020:001hSWM
KG 4210Key Lime Air11:3012:301hSWM
KG 4230Key Lime Air19:0020:001hSWM
KG 4230Key Lime Air19:0020:001hSWM

Showing all 13 scheduled DEN to AIA 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 AIA date on the interactive map

Aircraft on the Denver to Alliance nonstop

Key Lime Air flies the Fairchild-Swearingen Metro/Merlin on every departure in the schedule table on this page.

The full DEN to AIA nonstop schedule

This page carries the full DEN to AIA 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 AIA nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See DEN to AIA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Denver to Alliance nonstop

Carriers operating DEN to AIA nonstop in the current schedule.

See DEN to AIA on the interactive map →

Frequently asked questions about DEN to AIA

How long is the flight from Denver (DEN) to Alliance (AIA)?
Every departure in the schedule table on this page is scheduled at 1h from Denver (DEN) to Alliance (AIA). The nonstop covers about 180 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from DEN to AIA?
Key Lime Air is currently the only airline flying DEN to AIA nonstop. 2LNR doesn't show award or upgrade space for it on DEN to AIA, so this page carries the schedule rather than a space claim.
How many flights a week are there from DEN to AIA?
About 9 nonstop flights a week run between Denver (DEN) and Alliance (AIA) in the current schedule, operated by Key Lime Air. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from DEN to AIA depart?
Scheduled DEN to AIA nonstops in the next 7 days with service leave between 11:30 and 19:00, 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 AIA nonstop?
In the schedule table on this page, DEN to AIA nonstops fly as KG 4210 and KG 4230 on Key Lime Air. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on DEN to AIA?
Not on this route: 2LNR doesn't show award or upgrade space for Key Lime Air on DEN to AIA. The page carries the full DEN to AIA nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full DEN to AIA 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