City Of Colorado Springs Municipal to Harry Reid International COS → LAS
524 nautical miles (603 statute miles) west on a straight line, true course 255°, about 247° magnetic at the departure end (variation 8E). At 120 knots that is 5 h 24 min at the quickest height in today's winds (8,500 ft, a 23-knot headwind), arriving about 12:02 am PDT (07:02 UTC), after sunset at the destination. Right now COS is VFR, wind from the west-southwest (240°) at 14 knots, gusting to 25; LAS is VFR, wind from the south (190°) 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: 1,726 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
- SIGMET 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 8:55 pm MDT (02:55 UTC). Over the route from 40 to 218 nm out.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 1W VALID UNTIL 0255Z CO NM WY AZ UT FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE AREA SEV TS MOV FROM 23040KT. TOPS TO FL340. WIND GUSTS TO 60KT POSS.
- SIGMET 4W: thunderstorms (a convective SIGMET) up to 28,000 ft, moving from the southwest at 20 knots, until 8:55 pm MDT (02:55 UTC). Near the route, 366 nm along the route.
as issued
WSUS33 KKCI 120055 MKCW WST 120055 CONVECTIVE SIGMET 4W VALID UNTIL 0255Z AZ FROM 60NE TBC-30S INW-100ESE BZA-70SE EED-50NW TBC-60NE TBC DMSHG AREA EMBD TS MOV FROM 21020KT. TOPS TO FL280.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 494 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the whole 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 40 to 208 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 40 to 148 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 237 to 514 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 277 nm of the route.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 346 to 484 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 COS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent GLF6 at 45,000 ft, 41 nm south, 5:57 pm MDT (23:57 UTC): severe turbulence, remarks: a/c had to exit auto pilot, 45 degree pitch-zdv. 227 nm along the route, 41 nm south of the line.
as filed, and in English
FMN UUA /OV RSK280050/TM 2357/FL450/TP GLF6/TB SEV/RM A/C HAD TO EXIT AUTO PILOT, 45 DEGREE PITCH-ZDV
- Report
- an urgent report filed through FMN
- Where
- 50 nm west (280°) of RSK
- Time
- 23:57 UTC
- Height
- at 45,000 ft
- Aircraft
- GLF6
- Turbulence
- severe
- Remarks
- a/c had to exit auto pilot, 45 degree pitch-zdv
- GLF5 at 45,000 ft, 25 nm north, 4:44 pm MDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. At the departure end, 25 nm north of the line.
as filed, and in English
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
- Report
- a routine report filed through COS
- Where
- 25 nm north (350°) of COS
- Time
- 22:44 UTC
- Height
- at 45,000 ft
- Aircraft
- GLF5
- Turbulence
- moderate
- Remarks
- ZDVWC-46
- UAL2238 at 38,000 ft, 13 nm southeast, 5:44 pm MDT (23:44 UTC): moderate turbulence, wind 244° at 64 knots. 109 nm along the route, 13 nm southeast of the line.
as filed, and in English
ARP UAL2238 3807N 10649W 2344 F380 244/064KT TB CONT MOD TURB IC
- Report
- a routine report filed through ARP
- GLF4 at 43,000 ft, 32 nm southeast, 6:09 pm MDT (00:09 UTC): moderate chop turbulence, remarks: ZDVWC-38. 168 nm along the route, 32 nm southeast of the line.
as filed, and in English
FMN UA /OV RSK360050/TM 0009/FL430/TP GLF4/TB MOD CHOP/RM ZDVWC-38
- Report
- a routine report filed through FMN
- Where
- 50 nm north (360°) of RSK
- Time
- 00:09 UTC
- Height
- at 43,000 ft
- Aircraft
- GLF4
- Turbulence
- moderate chop
- Remarks
- ZDVWC-38
- GLF4 at 43,000 ft, 39 nm south, 6:15 pm MDT (00:15 UTC): moderate turbulence, remarks: zdvwc. 218 nm along the route, 39 nm south of the line.
as filed, and in English
FMN UA /OV RSK290045/TM 0015/FL430/TP GLF4/TB CONS MOD/RM ZDVWC
- Report
- a routine report filed through FMN
- Where
- 45 nm west (290°) of RSK
- Time
- 00:15 UTC
- Height
- at 43,000 ft
- Aircraft
- GLF4
- Turbulence
- continuous moderate
- Remarks
- zdvwc
- UAL493 at 24,000 ft, 12 nm north, 4:54 pm MDT (22:54 UTC): moderate turbulence. 435 nm along the route, 12 nm north of the line.
as filed, and in English
ARP UAL493 3648N 11330W 2254 F240 TB MODERATE SK IN CLOUDS IC LIGHT
- Report
- a routine report filed through ARP
- GLF6 at 40,000 ft, 20 nm north, 6:48 pm MDT (00:48 UTC): light to moderate chop turbulence, remarks: ZDVWC-46. At the departure end, 20 nm north of the line.
as filed, and in English
COS UA /OV COS340020/TM 0048/FL400/TP GLF6/TB LGT-MOD CHOP/RM ZDVWC-46
- Report
- a routine report filed through COS
- Where
- 20 nm north (340°) of COS
- Time
- 00:48 UTC
- Height
- at 40,000 ft
- Aircraft
- GLF6
- Turbulence
- light to moderate chop
- Remarks
- ZDVWC-46
- A21N at 31,000 ft, 33 nm southeast, 6:24 pm MDT (00:24 UTC): remarks: mountain wave +/-10-20KT ZDVWC-29. At the departure end, 33 nm southeast of the line.
as filed, and in English
PUB UA /OV PUB/TM 0024/FL310/TP A21N/RM MTN WAVE +/-10-20KT ZDVWC-29
- Report
- a routine report filed through PUB
- Where
- over PUB
- Time
- 00:24 UTC
- Height
- at 31,000 ft
- Aircraft
- A21N
- Remarks
- mountain wave +/-10-20KT ZDVWC-29
- B737 at 14,000 ft, 36 nm north, 6:20 pm MDT (00:20 UTC): light to moderate turbulence, remarks: light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft. At the departure end, 36 nm north of the line.
as filed, and in English
DEN UA /OV DEN170025/TM 0020/FL140/TP B737/TB LGT-MOD/RM LGT-MOD 140-160 OCCN LGT ABOVE 160
- Report
- a routine report filed through DEN
- Where
- 25 nm south (170°) of DEN
- Time
- 00:20 UTC
- Height
- at 14,000 ft
- Aircraft
- B737
- Turbulence
- light to moderate
- Remarks
- light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft
- E55P at 38,000 ft, 23 nm north, 7:23 pm MDT (01:23 UTC): light chop turbulence, remarks: ZDVWC-05. At the departure end, 23 nm north of the line.
as filed, and in English
DEN UA /OV FQF200040/TM 0123/FL380/TP E55P/TB LGT CHOP/RM ZDVWC-05
- Report
- a routine report filed through DEN
- Where
- 40 nm south (200°) of FQF
- Time
- 01:23 UTC
- Height
- at 38,000 ft
- Aircraft
- E55P
- Turbulence
- light chop
- Remarks
- ZDVWC-05
- B737 at 25,000 ft, 6 nm north, 6:29 pm MDT (00:29 UTC): light rime icing, 0 °C, remarks: during the climb ZDVWC-29. At the departure end, 6 nm north of the line.
as filed, and in English
COS UA /OV BRK242015/TM 0029/FL250/TP B737/SK TOP280/TA 00/IC LGT RIME/RM DURC ZDVWC-29
- Report
- a routine report filed through COS
- Where
- 15 nm southwest (242°) of BRK
- Time
- 00:29 UTC
- Height
- at 25,000 ft
- Aircraft
- B737
- Sky
- TOP280
- Temperature
- 0 °C
- Icing
- light rime
- Remarks
- during the climb ZDVWC-29
- CL35 at 43,000 ft, 31 nm southeast, 6:21 pm MDT (00:21 UTC): remarks: mtw +/-300FT zdvwc. 40 nm along the route, 31 nm southeast of the line.
as filed, and in English
PUB UA /OV PUB250040/TM 0021/FL430/TP CL35/RM MTW +/-300FT ZDVWC
- Report
- a routine report filed through PUB
- Where
- 40 nm west (250°) of PUB
- Time
- 00:21 UTC
- Height
- at 43,000 ft
- Aircraft
- CL35
- Remarks
- mtw +/-300FT zdvwc
- BE9L at 20,000 ft, 36 nm southeast, 6:34 pm MDT (00:34 UTC): light rime icing, -9 °C, remarks: ZDVWC-41. 79 nm along the route, 36 nm southeast of the line.
as filed, and in English
ALS UA /OV ALS330035/TM 0034/FL200/TP BE9L/TA M09/IC LGT RIME/RM ZDVWC-41
- Report
- a routine report filed through ALS
- Where
- 35 nm northwest (330°) of ALS
- Time
- 00:34 UTC
- Height
- at 20,000 ft
- Aircraft
- BE9L
- Temperature
- −9 °C
- Icing
- light rime
- Remarks
- ZDVWC-41
- PRM1 at 41,000 ft, 44 nm south, 5:38 pm MDT (23:38 UTC): light to moderate clear-air turbulence, remarks: ZDVWC-46. 99 nm along the route, 44 nm south of the line.
as filed, and in English
ALS UA /OV ALS290035/TM 2338/FL410/TP PRM1/TB LGT-MOD CAT/RM ZDVWC-46
- Report
- a routine report filed through ALS
- Where
- 35 nm west (290°) of ALS
- Time
- 23:38 UTC
- Height
- at 41,000 ft
- Aircraft
- PRM1
- Turbulence
- light to moderate clear-air turbulence
- Remarks
- ZDVWC-46
9 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 6 forecast points nearest it (PUB, ALS, GJT, FMN, BCE, LAS). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 8,500 ft | 210° at 29 kt | +23 kt | 11 °C | 97 kt | 5 h 24 min | 12:02 am PDT (07:02 UTC) |
| 10,500 ft | 210° at 37 kt | +29 kt | 4 °C | 91 kt | 5 h 45 min | 12:23 am PDT (07:23 UTC) |
| 12,500 ft | 210° at 39 kt | +30 kt | 1 °C | 90 kt | 5 h 49 min | 12:27 am PDT (07:27 UTC) |
| 14,500 ft | 210° at 42 kt | +32 kt | -3 °C | 88 kt | 5 h 57 min | 12:35 am PDT (07:35 UTC) |
| 16,500 ft | 210° at 46 kt | +35 kt | -7 °C | 85 kt | 6 h 10 min | 12:48 am PDT (07:48 UTC) |
| 18,000 ft FL180 | 210° at 48 kt | +36 kt | -11 °C | 84 kt | 6 h 14 min | 12:52 am PDT (07:52 UTC) |
| 24,000 ft FL240 | 220° at 45 kt | +38 kt | -22 °C | 82 kt | 6 h 23 min | 1:01 am PDT (08:01 UTC) |
| 30,000 ft FL300 | 220° at 61 kt | +54 kt | -28 °C | 66 kt | 7 h 56 min | 2:34 am PDT (09:34 UTC) |
| 34,000 ft FL340 | 230° at 62 kt | +56 kt | -35 °C | 64 kt | 8 h 11 min | 2:49 am PDT (09:49 UTC) |
| 39,000 ft FL390 | 230° at 59 kt | +56 kt | -46 °C | 64 kt | 8 h 11 min | 2:49 am PDT (09:49 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PUB | used from 0 nm out; 41 nm from the line | 210/24 16° | 210/28 8° | 230/43 -8° | 240/42 -21° | 240/77 -30° | 240/72 -36° | 250/51 -47° | ||
| ALS | used from 49 nm out; 65 nm from the line | 210/32 5° | 230/48 -8° | 230/49 -20° | 230/78 -30° | 240/74 -36° | 240/61 -47° | |||
| GJT | used from 99 nm out; 80 nm from the line | 210/40 11° | 210/46 3° | 210/61 -10° | 210/68 -22° | 220/57 -29° | 230/59 -36° | 240/66 -46° | ||
| FMN | used from 198 nm out; 78 nm from the line | 220/25 13° | 220/28 4° | 210/51 -9° | 220/59 -21° | 230/78 -30° | 230/77 -36° | 230/66 -46° | ||
| BCE | used from 247 nm out; 92 nm from the line | 210/47 0° | 200/50 -12° | 220/31 -23° | 220/56 -26° | 220/58 -35° | 230/58 -45° | |||
| LAS | used from 445 nm out; 54 nm from the line | 200/25 11° | 230/22 5° | 240/25 -1° | 220/37 -12° | 220/44 -21° | 210/52 -27° | 210/60 -34° | 220/58 -44° |
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 |
|---|---|---|---|---|---|---|---|
| COS Colorado Springs, CO | departure | VFR Sky: a few clouds at 7,000 feet, a broken layer at 10,000 feet, a broken layer at 17,000 feet, a broken layer at 20,000 feet | from the west-southwest (240°) at 14 knots, gusting to 25 | 10+ mi | 10,000 ft | 6,187 ft | 6:54 pm MDT (00:54 UTC) |
| ANK Salida, CO | 69 nm out, 4 nm northeast of the line | VFR Sky: a few clouds at 5,000 feet, scattered clouds at 12,000 feet, a broken layer at 18,000 feet | from the south (190°) at 20 knots | 10+ mi | 18,000 ft | 7,523 ft | 01:15 UTC |
| GUC Gunnison, CO | 109 nm out, 13 nm north of the line | VFR Sky: a broken layer at 8,000 feet, overcast at 9,500 feet | from the south-southwest (200°) at 11 knots | 10+ mi | 8,000 ft | 7,679 ft | 00:56 UTC |
| TEX Telluride, CO | 158 nm out, 8 nm south of the line | VFR Sky: scattered clouds at 7,000 feet, scattered clouds at 8,000 feet | from the south-southeast (150°) at 20 knots, gusting to 35 | 10+ mi | none | 9,069 ft | 01:15 UTC |
| BDG Blanding, UT | 237 nm out, 7 nm south of the line | VFR | from the south-southwest (200°) at 21 knots, gusting to 33 | 10+ mi | none | 5,867 ft | 22:15 UTC |
| PGA Page, AZ | 336 nm out, 14 nm south of the line | VFR Sky: a few clouds at 7,000 feet, scattered clouds at 12,000 feet | from the south (190°) at 12 knots, gusting to 20 | 10+ mi | none | 4,316 ft | 00:53 UTC |
| KNB Kanab, UT | 386 nm out, 8 nm northwest of the line | reported, no category | from the southwest (230°) at 8 knots, gusting to 13 | 6 mi | none | 4,867 ft | 01:35 UTC |
| LAS Las Vegas, NV | destination | VFR Sky: a few clouds at 7,500 feet, scattered clouds at 10,000 feet, a broken layer at 15,000 feet | from the south (190°) at 12 knots | 10+ mi | 15,000 ft | 2,183 ft | 5:56 pm PDT (00:56 UTC) |
The highest airport on this list sits at 9,069 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LAS when you get there the forecast at the estimated arrival, 12:02 am PDT (07:02 UTC)
Wind from the south at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet VFR
The whole forecast for LAS
- From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southwest at 14 knots, gusting to 24, visibility more than 6 miles, showers nearby, a few clouds at 6,000 feet, scattered clouds at 8,000 feet and more above
- From Sun 8:00 pm PDT (03:00 UTC): wind from the south at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
- From Mon 1:00 am PDT (08:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 8,000 feet, a broken layer at 10,000 feet
- From Mon 8:00 am PDT (15:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
- From Mon 12:00 pm PDT (19:00 UTC): wind from the south-southwest at 15 knots, gusting to 25, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 12,000 feet
- From Mon 8:00 pm PDT (03:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds at 10,000 feet
The forecast for COS, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind from the south-southwest at 20 knots, gusting to 32, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 20,000 feet
- From Sun 9:00 pm MDT (03:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 20,000 feet
- From Mon 6:00 am MDT (12:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am MDT (17:00 UTC): wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 12,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 12 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV
- 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 15 nm from the route, 30 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
- 6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local on the route, at the destination end · a VIP movement · starts tomorrow · ZLA
- 6/8808 Las Vegas, NV, Tuesday, October 13, 2026 Local on the route, at the destination end · security · starts tomorrow · ZLA
Daylight
Sunset at COS 6:25 pm MDT (00:25 UTC), at LAS 6:08 pm PDT (01:08 UTC) (civil twilight ends 6:34 pm PDT (01:34 UTC)). At 120 knots the arrival at LAS is before sunrise there (6:44 am PDT (13:44 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: City Of Colorado Springs Municipal, Harry Reid International.