The U.S. aircraft register, updated daily
Plan a flight · Mon 6:03 am MDT (12:03 UTC)

Denver International to Colorado Plains Regional DEN → AKO

69 nautical miles (80 statute miles) east on a straight line, true course 074°, about 066° magnetic at the departure end (variation 8E). At 120 knots that is 21 min at the quickest height in today's winds (34,000 ft, a 76-knot tailwind), arriving about 6:24 am MDT (12:24 UTC), after sunset at the destination. Right now DEN is VFR, wind from the south (190°) at 13 knots; AKO is VFR, wind from the west-southwest (250°) at 12 knots. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 2 flights in the DOT's last twelve reported months, the route's page.

The return flight

The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words

Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.

Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of

  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 50 nm of the route.
  • AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 10 nm of the route.
  • AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 10 to 40 nm out.

A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from DEN.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

  • UAL1735 at 19,000 ft, 44 nm southwest, 5:50 am MDT (11:50 UTC): light chop turbulence, wind 237° at 58 knots. At the departure end, 44 nm southwest of the line.
    as filed, and in English
    ARP UAL1735 3925N 10525W 1150 F190 237/058KT TB INTMT LGT CHOP IC
    Report
    a routine report filed through ARP
  • B38M at 21,000 ft, 38 nm west, 5:24 am MDT (11:24 UTC): light to moderate chop turbulence, remarks: during the climb zdvwc. At the departure end, 38 nm west of the line.
    as filed, and in English
    DEN UA /OV DEN277039/TM 1124/FL210/TP B38M/TB LGT-MOD CHOP BLO 180 NEG ABV 180/RM DURC. ZDVWC
    Report
    a routine report filed through DEN
    Where
    39 nm west (277°) of DEN
    Time
    11:24 UTC
    Height
    at 21,000 ft
    Aircraft
    B38M
    Turbulence
    light to moderate chop below 18,000 ft no above 18,000 ft
    Remarks
    during the climb zdvwc
  • B763 at 23,000 ft, 36 nm west, 4:26 am MDT (10:26 UTC): light chop turbulence, remarks: zdvwc. At the departure end, 36 nm west of the line.
    as filed, and in English
    DEN UA /OV DEN278037/TM 1026/FL230/TP B763/TB OCNL LGT CHOP/RM ZDVWC
    Report
    a routine report filed through DEN
    Where
    37 nm west (278°) of DEN
    Time
    10:26 UTC
    Height
    at 23,000 ft
    Aircraft
    B763
    Turbulence
    occasional light chop
    Remarks
    zdvwc

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 UTC · at 120 knots true airspeed

The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 1 forecast point nearest it (DEN). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
7,500 ft270° at 24 kt−23 kt11 °C143 kt29 min6:32 am MDT (12:32 UTC)
9,500 ft270° at 22 kt−21 kt10 °C141 kt29 min6:32 am MDT (12:32 UTC)
11,500 ft240° at 14 kt−14 kt6 °C134 kt31 min6:34 am MDT (12:34 UTC)
13,500 ft230° at 22 kt−20 kt2 °C140 kt30 min6:33 am MDT (12:33 UTC)
15,500 ft230° at 33 kt−31 kt-3 °C151 kt27 min6:30 am MDT (12:30 UTC)
17,500 ft230° at 45 kt−41 kt-7 °C161 kt26 min6:29 am MDT (12:29 UTC)
18,000 ft FL180230° at 48 kt−44 kt-8 °C164 kt25 min6:28 am MDT (12:28 UTC)
24,000 ft FL240230° at 46 kt−42 kt-20 °C162 kt26 min6:29 am MDT (12:29 UTC)
30,000 ft FL300230° at 63 kt−58 kt-30 °C178 kt23 min6:26 am MDT (12:26 UTC)
34,000 ft FL340240° at 78 kt−76 kt-36 °C196 kt21 min6:24 am MDT (12:24 UTC)
39,000 ft FL390240° at 78 kt−76 kt-48 °C196 kt21 min6:24 am MDT (12:24 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.

The forecast points as issued
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
DENused from 0 nm out; 25 nm from the line270/24 11°230/13 5°230/48 -8°230/46 -20°230/63 -30°240/78 -36°240/78 -48°

The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch

AirportWhereConditionsWindVisibilityCeilingElevationReported
DEN Denver, CO departure VFR Sky: a few clouds at 22,000 feet from the south (190°) at 13 knots 10+ mi none 5,433 ft 5:53 am MDT (11:53 UTC)
FMM Fort Morgan, CO 50 nm out, 17 nm northwest of the line VFR from the west-southwest (250°) at 5 knots 10+ mi none 4,595 ft 11:55 UTC
AKO Akron, CO destination VFR from the west-southwest (250°) at 12 knots 10+ mi none 4,716 ft 5:53 am MDT (11:53 UTC)

The highest airport on this list sits at 5,433 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At AKO when you get there the forecast at the estimated arrival, 6:24 am MDT (12:24 UTC)

AKO has no terminal forecast; use the nearest airport that does.

The forecast for DEN, the departure
  • From Mon 6:00 am MDT (12:00 UTC): wind from the south-southwest at 15 knots, visibility more than 6 miles, clear skies
  • From Mon 10:00 am MDT (16:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, clear skies
  • From Mon 7:00 pm MDT (01:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
  • From Mon 11:00 pm MDT (05:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, a few clouds at 2,000 feet, scattered clouds at 4,000 feet
  • From Tue 4:00 am MDT (10:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, a broken layer at 2,000 feet
  • From Tue 10:00 am MDT (16:00 UTC): wind from the northeast at 7 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 4,000 feet

Temporary flight restrictions on the line or within 25 nm of it

No temporary flight restriction on or near this route right now.

Daylight

Sunset at DEN 6:22 pm MDT (00:22 UTC), at AKO 6:16 pm MDT (00:16 UTC) (civil twilight ends 6:43 pm MDT (00:43 UTC)). At 120 knots the arrival at AKO is before sunrise there (7:00 am MDT (13:00 UTC)).

Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.

Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads

Radar now, the southern Rockies
Radar now, the southern Rockies · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
Forecast chart, 24 hours ahead Weather Prediction Center

Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Denver International, Colorado Plains Regional.