St. Louis Downtown Airport to Harry Reid International CPS → LAS
1,199 nautical miles (1,380 statute miles) west on a straight line, true course 271°, about 271° magnetic at the departure end (variation 0E). At 120 knots that is 12 h 14 min at the quickest height in today's winds (8,500 ft, a 22-knot headwind), arriving about 8:51 am PDT (15:51 UTC). 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: 5 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 W11W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 11:55 pm CDT (04:55 UTC). Over the route from 699 to 859 nm out.
as issued
WSUS33 KKCI 120255 MKCW WST 120255 CONVECTIVE SIGMET 11W VALID UNTIL 0455Z CO NM FROM 20WNW PUB-10ENE CIM-50WNW ABQ-30NNE DVC-20WNW PUB AREA TS MOV FROM 22040KT. TOPS TO FL340.
- AIRMET TANGO 3W: 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 220 to 600 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 580 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 640 to 759 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 719 to 759 nm out.
- 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 729 to 859 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 759 to 1039 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 250 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 969 to 1189 nm out.
- 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 1049 to 1099 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 CPS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- BE9L at 24,500 ft, 25 nm north, 9:21 pm CDT (02:21 UTC): moderate turbulence, remarks: ZDVWC-41. 709 nm along the route, 25 nm north of the line.
as filed, and in English
PUB UA /OV PUB250040/TM 0221/FL245/TP BE9L/TB OCNL MOD/RM ZDVWC-41
- Report
- a routine report filed through PUB
- Where
- 40 nm west (250°) of PUB
- Time
- 02:21 UTC
- Height
- at 24,500 ft
- Aircraft
- BE9L
- Turbulence
- occasional moderate
- Remarks
- ZDVWC-41
- SW4 at 15,000 ft, 24 nm north, 8:39 pm CDT (01:39 UTC): moderate turbulence, light rime icing, freezing, rain, 0 °C, remarks: instrument conditions ZDVWC-36. 849 nm along the route, 24 nm north of the line.
as filed, and in English
CEZ UA /OV CEZ030030/TM 0139/FL150/TP SW4/SK BASE150/WX FZ RA/TA 00/TB CONS MOD/IC LGT RIME/RM IMC ZDVWC-36
- Report
- a routine report filed through CEZ
- Where
- 30 nm northeast (030°) of CEZ
- Time
- 01:39 UTC
- Height
- at 15,000 ft
- Aircraft
- SW4
- Sky
- BASE150
- Weather
- freezing, rain
- Temperature
- 0 °C
- Turbulence
- continuous moderate
- Icing
- light rime
- Remarks
- instrument conditions ZDVWC-36
- E145 at 15,000 ft, 45 nm southwest, 8:45 pm CDT (01:45 UTC): moderate chop turbulence, light rime icing, -9 °C. At the destination end, 45 nm southwest of the line.
as filed, and in English
LAS UA /OV LAS213045/TM 0145/FL150/TP E145/TA M09/TB MOD CHOP/IC LGT RIME
- Report
- a routine report filed through LAS
- Where
- 45 nm southwest (213°) of LAS
- Time
- 01:45 UTC
- Height
- at 15,000 ft
- Aircraft
- E145
- Temperature
- −9 °C
- Turbulence
- moderate chop
- Icing
- light rime
- B38M at 36,000 ft, 14 nm north, 9:22 pm CDT (02:22 UTC): light turbulence, remarks: mtw +/-200FT ZDVWC-30. 729 nm along the route, 14 nm north of the line.
as filed, and in English
ALS UA /OV ALS360035/TM 0222/FL360/TP B38M/TB LGT/RM MTW +/-200FT ZDVWC-30
- Report
- a routine report filed through ALS
- Where
- 35 nm north (360°) of ALS
- Time
- 02:22 UTC
- Height
- at 36,000 ft
- Aircraft
- B38M
- Turbulence
- light
- Remarks
- mtw +/-200FT ZDVWC-30
- BE20 at 20,400 ft, 8 nm south, 10:14 pm CDT (03:14 UTC): rain, heavy rain, blowing, remarks: during the climb ZDVWC-36. 809 nm along the route, 8 nm south of the line.
as filed, and in English
DRO UA /OV DRO050025/TM 0314/FL204/TP BE20/WX RA-+RA BLO 150/RM DURC ZDVWC-36
- Report
- a routine report filed through DRO
- Where
- 25 nm northeast (050°) of DRO
- Time
- 03:14 UTC
- Height
- at 20,400 ft
- Aircraft
- BE20
- Weather
- ra-+ra, below, at 15,000 ft
- Remarks
- during the climb ZDVWC-36
- BE9L at 20,000 ft, 14 nm south, 7:59 pm CDT (00:59 UTC): light chop turbulence, remarks: instrument conditions ZDVWC-36. 839 nm along the route, 14 nm south of the line.
as filed, and in English
DRO UA /OV DRO/TM 0059/FL200/TP BE9L/TB LGT CHOP/RM IMC ZDVWC-36
- Report
- a routine report filed through DRO
- Where
- over DRO
- Time
- 00:59 UTC
- Height
- at 20,000 ft
- Aircraft
- BE9L
- Turbulence
- light chop
- Remarks
- instrument conditions ZDVWC-36
- PC12 at 16,400 ft, 18 nm south, 10:15 pm CDT (03:15 UTC): light chop turbulence up to 16,000 ft, clear from 16,400 ft to 60,000 ft, remarks: during the climb ZDVWC-36. 849 nm along the route, 18 nm south of the line.
as filed, and in English
DRO UA /OV DRO230013/TM 0315/FL164/TP PC12/SK SKC/TB CONS LGT CHOP BLO 160/RM DURC ZDVWC-36
- Report
- a routine report filed through DRO
- Where
- 13 nm southwest (230°) of DRO
- Time
- 03:15 UTC
- Height
- at 16,400 ft
- Aircraft
- PC12
- Sky
- clear
- Turbulence
- continuous light chop below 16,000 ft
- Remarks
- during the climb ZDVWC-36
- E75L at 14,000 ft, 35 nm south, 8:28 pm CDT (01:28 UTC): light to moderate turbulence from 19,000 ft to 25,000 ft, no icing, remarks: ZDVWC-36. 859 nm along the route, 35 nm south of the line.
as filed, and in English
FMN UA /OV RSK/TM 0128/FL140/TP E75L/TB LGT-MOD 250-190/IC NEG/RM ZDVWC-36
- Report
- a routine report filed through FMN
- Where
- over RSK
- Time
- 01:28 UTC
- Height
- at 14,000 ft
- Aircraft
- E75L
- Turbulence
- light to moderate from 25,000 ft to 19,000 ft
- Icing
- none
- Remarks
- ZDVWC-36
- H25B at 17,000 ft, 30 nm southwest, 9:44 pm CDT (02:44 UTC): light rime icing, -10 °C, remarks: rndrz arrival. At the destination end, 30 nm southwest of the line.
as filed, and in English
LAS UA /OV LAS210030/TM 0244/FL170/TP H25B/TA -10/IC LT RIME/RM RNDRZ ARR
- Report
- a routine report filed through LAS
- Where
- 30 nm southwest (210°) of LAS
- Time
- 02:44 UTC
- Height
- at 17,000 ft
- Aircraft
- H25B
- Temperature
- -10
- Icing
- lt rime
- Remarks
- rndrz arrival
- B39M at 3,800 ft, 0 nm west, 9:30 pm CDT (02:30 UTC): no turbulence, wind 190° at 21 knots, remarks: during the descent runway 26L las. At the destination end, 0 nm west of the line.
as filed, and in English
LAS UA /OV 08006/TM 0230/FL038/TP B39M/WV 19021KT/TB NEG/RM DURD RY26L LAS
- Report
- a routine report filed through LAS
- Where
- wind from 080° at 6 knots
- Time
- 02:30 UTC
- Height
- at 3,800 ft
- Aircraft
- B39M
- Wind
- from 190° at 21 knots
- Turbulence
- none
- Remarks
- during the descent runway 26L las
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 10 forecast points nearest it (STL, COU, MKC, SLN, GCK, PUB, ALS, 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 |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 36 kt | +27 kt | 17 °C | 93 kt | 12 h 54 min | 9:31 am PDT (16:31 UTC) |
| 6,500 ft | 230° at 32 kt | +26 kt | 16 °C | 94 kt | 12 h 45 min | 9:22 am PDT (16:22 UTC) |
| 8,500 ft | 230° at 26 kt | +22 kt | 12 °C | 98 kt | 12 h 14 min | 8:51 am PDT (15:51 UTC) |
| 10,500 ft | 230° at 25 kt | +22 kt | 7 °C | 98 kt | 12 h 14 min | 8:51 am PDT (15:51 UTC) |
| 12,500 ft | 230° at 26 kt | +22 kt | 3 °C | 98 kt | 12 h 14 min | 8:51 am PDT (15:51 UTC) |
| 14,500 ft | 230° at 29 kt | +25 kt | -1 °C | 95 kt | 12 h 37 min | 9:14 am PDT (16:14 UTC) |
| 16,500 ft | 230° at 33 kt | +28 kt | -5 °C | 92 kt | 13 h 02 min | 9:39 am PDT (16:39 UTC) |
| 18,000 ft FL180 | 230° at 36 kt | +30 kt | -9 °C | 90 kt | 13 h 19 min | 9:56 am PDT (16:56 UTC) |
| 24,000 ft FL240 | 230° at 44 kt | +38 kt | -20 °C | 82 kt | 14 h 37 min | 11:14 am PDT (18:14 UTC) |
| 30,000 ft FL300 | 240° at 60 kt | +56 kt | -29 °C | 64 kt | 18 h 44 min | 3:21 pm PDT (22:21 UTC) |
| 34,000 ft FL340 | 250° at 62 kt | +60 kt | -36 °C | 60 kt | 19 h 59 min | 4:36 pm PDT (23:36 UTC) |
| 39,000 ft FL390 | 250° at 53 kt | +53 kt | -47 °C | 67 kt | 17 h 54 min | 2:31 pm PDT (21:31 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| STL | used from 0 nm out; 18 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
| COU | used from 50 nm out; 26 nm from the line | 230/31 | 230/30 15° | 260/16 11° | 270/14 6° | 260/24 -6° | 270/27 -18° | 270/37 -32° | 280/49 -41° | 290/56 -51° |
| MKC | used from 150 nm out; 48 nm from the line | 220/44 | 250/28 18° | 250/18 13° | 240/12 6° | 280/24 -6° | 240/34 -18° | 260/47 -30° | 260/51 -40° | 270/58 -50° |
| SLN | used from 300 nm out; 35 nm from the line | 210/53 | 230/41 20° | 240/26 14° | 230/16 8° | 240/25 -7° | 240/35 -19° | 250/61 -30° | 260/65 -38° | 260/56 -49° |
| GCK | used from 400 nm out; 76 nm from the line | 220/48 21° | 230/37 14° | 250/30 8° | 230/37 -6° | 240/37 -20° | 240/69 -28° | 250/67 -37° | 260/58 -48° | |
| PUB | used from 600 nm out; 57 nm from the line | 230/25 13° | 230/32 6° | 220/44 -8° | 230/49 -21° | 240/70 -28° | 240/67 -34° | 240/58 -46° | ||
| ALS | used from 699 nm out; 25 nm from the line | 230/37 4° | 220/54 -9° | 230/62 -22° | 240/77 -26° | 240/74 -33° | 230/59 -45° | |||
| FMN | used from 799 nm out; 52 nm from the line | 220/28 9° | 220/40 2° | 220/53 -10° | 220/62 -22° | 230/79 -28° | 240/91 -34° | 230/71 -45° | ||
| BCE | used from 949 nm out; 86 nm from the line | 220/27 -1° | 210/40 -13° | 220/54 -21° | 220/64 -30° | 220/64 -34° | 220/52 -44° | |||
| LAS | used from 1099 nm out; 75 nm from the line | 210/21 10° | 200/18 5° | 200/23 -2° | 210/49 -14° | 210/63 -21° | 220/58 -30° | 220/61 -35° | 210/56 -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 |
|---|---|---|---|---|---|---|---|
| CPS Cahokia/St Louis, IL | departure | no report just now | 412 ft | ||||
| JEF Jefferson City, MO | 90 nm out, 4 nm west of the line, tower | no report just now | 549 ft | ||||
| IXD Olathe, KS | 220 nm out, 19 nm north of the line, tower | no report just now | 1,087 ft | ||||
| SLN Salina, KS | 350 nm out, 24 nm north of the line, tower | no report just now | 1,288 ft | ||||
| HUT Hutchinson, KS | 360 nm out, 19 nm south of the line, tower | no report just now | 1,542 ft | ||||
| GCK Garden City, KS | 500 nm out, 15 nm south of the line, tower | no report just now | 2,890 ft | ||||
| LHX La Junta, CO | 630 nm out, 8 nm north of the line | no report just now | 4,228 ft | ||||
| MVI Monte Vista, CO | 749 nm out, 7 nm south of the line | no report just now | 7,611 ft | ||||
| CEZ Cortez, CO | 879 nm out, 4 nm northeast of the line | no report just now | 5,917 ft | ||||
| PGA Page, AZ | 1009 nm out, 8 nm northwest of the line | no report just now | 4,316 ft | ||||
| LAS Las Vegas, NV | destination | no report just now | 2,183 ft |
The highest airport on this list sits at 7,611 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, 8:51 am PDT (15:51 UTC)
LAS has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 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 CPS 6:27 pm CDT (23:27 UTC), at LAS 6:08 pm PDT (01:08 UTC) (civil twilight ends 6:34 pm PDT (01:34 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: St. Louis Downtown Airport, Harry Reid International.