Cavern City Air Trml Airport to Denver International CNM → DEN
452 nautical miles (520 statute miles) north on a straight line, true course 358°, about 348° magnetic at the departure end (variation 10E). At 120 knots that is 2 h 52 min at the quickest height in today's winds (30,000 ft, a 38-knot tailwind), arriving about 5:57 am MDT (11:57 UTC), after sunset at the destination. Right now CNM is VFR, wind from the south-southeast (160°) at 6 knots; DEN is VFR, wind from the south (180°) at 13 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: 220 flights in the DOT's last twelve reported months, the route's page.
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 last 295 nm of the route.
- AIRMET TANGO 2W: 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 206 to 315 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the last 167 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 last 49 nm of the route.
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 CNM.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- PC12 at 14,000 ft, 16 nm east, 12:06 am MDT (06:06 UTC): moderate turbulence, remarks: zab fdcs. 128 nm along the route, 16 nm east of the line.
as filed, and in English
CVN UA /OV TXO260060/TM 0606/FL140/TP PC12/TB MOD/RM ZAB FDCS
- Report
- a routine report filed through CVN
- Where
- 60 nm west (260°) of TXO
- Time
- 06:06 UTC
- Height
- at 14,000 ft
- Aircraft
- PC12
- Turbulence
- moderate
- Remarks
- zab fdcs
- A321 at 31,000 ft, 4 nm north, 12:41 am MDT (06:41 UTC): moderate turbulence, remarks: mtw +/-15KT zdvwc. 393 nm along the route, 4 nm north of the line.
as filed, and in English
COS UA /OV BRK/TM 0641/FL310/TP A321/TB MOD/RM MTW +/-15KT. ZDVWC
- Report
- a routine report filed through COS
- Where
- over BRK
- Time
- 06:41 UTC
- Height
- at 31,000 ft
- Aircraft
- A321
- Turbulence
- moderate
- Remarks
- mtw +/-15KT zdvwc
- B737 at 18,000 ft, 47 nm northwest, 1:24 am MDT (07:24 UTC): moderate turbulence, remarks: FL180-130. At the destination end, 47 nm northwest of the line.
as filed, and in English
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
- Report
- a routine report filed through DEN
- Where
- 50 nm northwest (330°) of DEN
- Time
- 07:24 UTC
- Height
- at 18,000 ft
- Aircraft
- B737
- Turbulence
- moderate
- Remarks
- FL180-130
- A333 at 38,000 ft, 37 nm west, 2:23 am MDT (08:23 UTC): light chop turbulence, remarks: mtw +/-15KT zdvwc. 295 nm along the route, 37 nm west of the line.
as filed, and in English
ALS UA /OV ALS085025/TM 0823/FL380/TP A333/TB LGT CHOP/RM MTW +/-15KT. ZDVWC
- Report
- a routine report filed through ALS
- Where
- 25 nm east (085°) of ALS
- Time
- 08:23 UTC
- Height
- at 38,000 ft
- Aircraft
- A333
- Turbulence
- light chop
- Remarks
- mtw +/-15KT zdvwc
- A320 at 31,000 ft, 33 nm west, 12:58 am MDT (06:58 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. 354 nm along the route, 33 nm west of the line.
as filed, and in English
PUB UA /OV PUB260040/TM 0658/FL310/TP A320/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
- Report
- a routine report filed through PUB
- Where
- 40 nm west (260°) of PUB
- Time
- 06:58 UTC
- Height
- at 31,000 ft
- Aircraft
- A320
- Turbulence
- light chop
- Remarks
- mtw a 10-knot loss of airspeed 100FT zdvwc
- B38M at 37,000 ft, 44 nm west, 1:42 am MDT (07:42 UTC): light chop turbulence, remarks: mtw +/-7KT zdvwc. 374 nm along the route, 44 nm west of the line.
as filed, and in English
PUB UA /OV PUB280055/TM 0742/FL370/TP B38M/TB LGT CHOP/RM MTW +/-7KT. ZDVWC
- Report
- a routine report filed through PUB
- Where
- 55 nm west (280°) of PUB
- Time
- 07:42 UTC
- Height
- at 37,000 ft
- Aircraft
- B38M
- Turbulence
- light chop
- Remarks
- mtw +/-7KT zdvwc
- A21N at 33,000 ft, 4 nm north, 12:59 am MDT (06:59 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. 393 nm along the route, 4 nm north of the line.
as filed, and in English
COS UA /OV BRK/TM 0659/FL330/TP A21N/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
- Report
- a routine report filed through COS
- Where
- over BRK
- Time
- 06:59 UTC
- Height
- at 33,000 ft
- Aircraft
- A21N
- Turbulence
- light chop
- Remarks
- mtw a 10-knot loss of airspeed 100FT zdvwc
- B38M at 22,000 ft, 43 nm west, 2:14 am MDT (08:14 UTC): no turbulence, remarks: zdvwc. 413 nm along the route, 43 nm west of the line.
as filed, and in English
DEN UA /OV DEN216059/TM 0814/FL220/TP B38M/TB NEG/RM ZDVWC
- Report
- a routine report filed through DEN
- Where
- 59 nm southwest (216°) of DEN
- Time
- 08:14 UTC
- Height
- at 22,000 ft
- Aircraft
- B38M
- Turbulence
- none
- Remarks
- zdvwc
- CRJ2 at 22,000 ft, 46 nm west, 12:35 am MDT (06:35 UTC): no turbulence up to 26,000 ft, no icing, clear from 22,000 ft to 60,000 ft, remarks: during the descent ZDVWC-26. 413 nm along the route, 46 nm west of the line.
as filed, and in English
DEN UA /OV DEN220060/TM 0635/FL220/TP CRJ2/SK SKC/TB NEG BLO 260/IC NEG/RM DURD/ ZDVWC-26
- Report
- a routine report filed through DEN
- Where
- 60 nm southwest (220°) of DEN
- Time
- 06:35 UTC
- Height
- at 22,000 ft
- Aircraft
- CRJ2
- Sky
- clear
- Turbulence
- no below 26,000 ft
- Icing
- none
- Remarks
- during the descent ZDVWC-26
- A20N at 25,000 ft, 44 nm west, 12:19 am MDT (06:19 UTC): light chop turbulence up to 26,000 ft, remarks: during the climb ZDVWC-06. At the destination end, 44 nm west of the line.
as filed, and in English
DEN UA /OV DEN250045/TM 0619/FL250/TP A20N/TB OCNL LGT CHOP BLO 260/RM DURC. ZDVWC-06
- Report
- a routine report filed through DEN
- Where
- 45 nm west (250°) of DEN
- Time
- 06:19 UTC
- Height
- at 25,000 ft
- Aircraft
- A20N
- Turbulence
- occasional light chop below 26,000 ft
- Remarks
- during the climb ZDVWC-06
- B737 descending, 3 nm south, 2:10 am MDT (08:10 UTC): light chop turbulence. At the destination end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 0810/FLDURD/TP B737/TB LGT CHOP
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 08:10 UTC
- Height
- during the descent
- Aircraft
- B737
- Turbulence
- light chop
- B737 descending, 3 nm south, 1:10 am MDT (07:10 UTC): remarks: smooth. At the destination end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 0710/FLDURD/TP B737/RM SMOOTH
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 07:10 UTC
- Height
- during the descent
- Aircraft
- B737
- Remarks
- smooth
- B738 descending, 3 nm south, 12:15 am MDT (06:15 UTC): light chop turbulence. At the destination end, 3 nm south of the line.
as filed, and in English
DEN UA /OV DEN/TM 0615/FLDURD/TP B738/TB LGT CHOP
- Report
- a routine report filed through DEN
- Where
- over DEN
- Time
- 06:15 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- light chop
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 westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 5 forecast points nearest it (ROW, TCC, ALS, PUB, DEN). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 240° at 17 kt | −8 kt | 128 kt | 3 h 32 min | 6:37 am MDT (12:37 UTC) | |
| 6,500 ft | 240° at 17 kt | −9 kt | 129 kt | 3 h 30 min | 6:35 am MDT (12:35 UTC) | |
| 8,500 ft | 250° at 25 kt | −8 kt | 11 °C | 128 kt | 3 h 32 min | 6:37 am MDT (12:37 UTC) |
| 10,500 ft | 240° at 27 kt | −13 kt | 9 °C | 133 kt | 3 h 24 min | 6:29 am MDT (12:29 UTC) |
| 12,500 ft | 230° at 30 kt | −18 kt | 5 °C | 138 kt | 3 h 17 min | 6:22 am MDT (12:22 UTC) |
| 14,500 ft | 230° at 35 kt | −21 kt | 1 °C | 141 kt | 3 h 12 min | 6:17 am MDT (12:17 UTC) |
| 16,500 ft | 230° at 40 kt | −24 kt | -4 °C | 144 kt | 3 h 08 min | 6:13 am MDT (12:13 UTC) |
| 18,000 ft FL180 | 230° at 44 kt | −27 kt | -7 °C | 147 kt | 3 h 04 min | 6:09 am MDT (12:09 UTC) |
| 24,000 ft FL240 | 240° at 53 kt | −27 kt | -18 °C | 147 kt | 3 h 04 min | 6:09 am MDT (12:09 UTC) |
| 30,000 ft FL300 | 240° at 72 kt | −38 kt | -28 °C | 158 kt | 2 h 52 min | 5:57 am MDT (11:57 UTC) |
| 34,000 ft FL340 | 240° at 73 kt | −34 kt | -36 °C | 154 kt | 2 h 56 min | 6:01 am MDT (12:01 UTC) |
| 39,000 ft FL390 | 250° at 67 kt | −25 kt | -49 °C | 145 kt | 3 h 07 min | 6:12 am MDT (12:12 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
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| ROW | used from 0 nm out; 35 nm from the line | 230/12 | 230/17 13° | 220/30 7° | 230/41 -5° | 240/52 -17° | 230/66 -28° | 240/63 -38° | 240/60 -50° | |
| TCC | used from 98 nm out; 61 nm from the line | 240/20 | 230/22 13° | 230/27 6° | 230/40 -7° | 240/55 -18° | 240/74 -27° | 240/68 -37° | 250/64 -49° | |
| ALS | used from 246 nm out; 75 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| PUB | used from 295 nm out; 38 nm from the line | 260/45 11° | 240/38 6° | 230/47 -8° | 230/51 -19° | 240/74 -29° | 240/82 -35° | 250/72 -48° | ||
| DEN | used from 393 nm out; 34 nm from the line | 270/24 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
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| CNM Carlsbad, NM | departure | VFR | from the south-southeast (160°) at 6 knots | 10+ mi | none | 3,294 ft | 2:53 am MDT (08:53 UTC) |
| ATS Artesia, NM | 29 nm out, 9 nm west of the line | VFR Sky: a broken layer at 11,000 feet | from the south-southeast (160°) at 7 knots | 10+ mi | 11,000 ft | 3,544 ft | 08:55 UTC |
| ROW Roswell, NM | 59 nm out, 11 nm west of the line, tower | VFR | from the south (190°) at 5 knots | 10+ mi | none | 3,671 ft | 08:51 UTC |
| FSU Fort Sumner, NM | 128 nm out, 8 nm east of the line | no report just now | 4,164 ft | ||||
| SXU Santa Rosa, NM | 157 nm out, 12 nm west of the line | VFR Sky: overcast at 8,000 feet | from the south (190°) at 4 knots | 10+ mi | 8,000 ft | 4,791 ft | 08:55 UTC |
| RTN Raton, NM | 265 nm out, 1 nm southwest of the line | VFR | variable at 4 knots | 10+ mi | none | 6,352 ft | 08:53 UTC |
| TAD Trinidad, CO | 295 nm out, 9 nm east of the line | VFR | from the west-southwest (240°) at 9 knots | 10+ mi | none | 5,761 ft | 08:54 UTC |
| PUB Pueblo, CO | 354 nm out, 5 nm northeast of the line, tower | VFR | from the east (090°) at 3 knots | 10+ mi | none | 4,729 ft | 08:53 UTC |
| COS Colorado Springs, CO | 393 nm out, 6 nm southwest of the line, tower | VFR Sky: scattered clouds at 20,000 feet | from the south (180°) at 11 knots | 10+ mi | none | 6,187 ft | 08:54 UTC |
| APA Denver, CO | 433 nm out, 9 nm west of the line, tower | VFR Sky: a few clouds at 22,000 feet | from the south (190°) at 10 knots | 10+ mi | none | 5,884 ft | 08:53 UTC |
| DEN Denver, CO | destination | VFR | from the south (180°) at 13 knots | 10+ mi | none | 5,433 ft | 2:53 am MDT (08:53 UTC) |
The highest airport on this list sits at 6,352 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DEN when you get there the forecast at the estimated arrival, 5:57 am MDT (11:57 UTC)
Wind from the south at 15 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for DEN
- From Mon 3:00 am MDT (09:00 UTC): wind from the south 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 4:00 pm MDT (22:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
- From Mon 7:00 pm MDT (01:00 UTC): wind from the northeast at 8 knots, visibility more than 6 miles, a few clouds at 15,000 feet
- 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 3,000 feet
The forecast for CNM, the departure
- From Mon 12:00 am MDT (06:00 UTC): wind from the south-southeast at 7 knots, visibility more than 6 miles, overcast at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8911 DENVER, CO, Monday, October 12, 2026 UTC 8 nm from the route, at the destination end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZDV
Daylight
Sunset at CNM 6:26 pm MDT (00:26 UTC), at DEN 6:22 pm MDT (00:22 UTC) (civil twilight ends 6:49 pm MDT (00:49 UTC)). At 120 knots the arrival at DEN is before sunrise there (7:05 am MDT (13:05 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
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: Cavern City Air Trml Airport, Denver International.