St. Louis Lambert International to Harry Reid International STL → LAS
1,189 nautical miles (1,368 statute miles) west on a straight line, true course 270°, about 271° magnetic at the departure end (variation 1W). At 120 knots that is 12 h 15 min at the quickest height in today's winds (8,500 ft, a 23-knot headwind), arriving about 4:12 pm PDT (23:12 UTC). Right now STL is VFR, wind from the south-southwest (210°) at 7 knots; LAS is VFR, wind from the south (180°) at 6 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: 4,202 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 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 60 to 500 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 619 to 1059 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 659 to 729 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 669 to 889 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 869 to 1119 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 290 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 1049 to 1109 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, at the destination end.
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 STL.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 11 forecast points nearest it (STL, COU, MKC, SLN, GCK, GLD, 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 | 240° at 33 kt | +30 kt | 17 °C | 90 kt | 13 h 13 min | 5:10 pm PDT (00:10 UTC) |
| 6,500 ft | 240° at 28 kt | +26 kt | 17 °C | 94 kt | 12 h 39 min | 4:36 pm PDT (23:36 UTC) |
| 8,500 ft | 240° at 25 kt | +23 kt | 12 °C | 97 kt | 12 h 15 min | 4:12 pm PDT (23:12 UTC) |
| 10,500 ft | 230° at 27 kt | +23 kt | 6 °C | 97 kt | 12 h 15 min | 4:12 pm PDT (23:12 UTC) |
| 12,500 ft | 230° at 29 kt | +25 kt | 3 °C | 95 kt | 12 h 31 min | 4:28 pm PDT (23:28 UTC) |
| 14,500 ft | 230° at 33 kt | +28 kt | -2 °C | 92 kt | 12 h 55 min | 4:52 pm PDT (23:52 UTC) |
| 16,500 ft | 230° at 37 kt | +32 kt | -6 °C | 88 kt | 13 h 31 min | 5:28 pm PDT (00:28 UTC) |
| 18,000 ft FL180 | 230° at 41 kt | +34 kt | -9 °C | 86 kt | 13 h 50 min | 5:47 pm PDT (00:47 UTC) |
| 24,000 ft FL240 | 230° at 51 kt | +45 kt | -20 °C | 75 kt | 15 h 51 min | 7:48 pm PDT (02:48 UTC) |
| 30,000 ft FL300 | 240° at 70 kt | +68 kt | -29 °C | 52 kt | 22 h 52 min | 2:49 am PDT (09:49 UTC) |
| 34,000 ft FL340 | 250° at 70 kt | +69 kt | -37 °C | 51 kt | 23 h 19 min | 3:16 am PDT (10:16 UTC) |
| 39,000 ft FL390 | 250° at 62 kt | +62 kt | -47 °C | 58 kt | 20 h 30 min | 12:27 am PDT (07:27 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| STL | used from 0 nm out; 25 nm from the line | 250/26 | 240/21 15° | 240/22 11° | 250/23 6° | 270/28 -7° | 260/30 -19° | 280/52 -31° | 280/57 -40° | 300/57 -49° |
| COU | used from 50 nm out; 13 nm from the line | 250/36 | 260/14 16° | 250/5 12° | 260/12 6° | 260/24 -7° | 260/35 -19° | 280/58 -31° | 280/62 -40° | 290/60 -49° |
| MKC | used from 150 nm out; 35 nm from the line | 240/49 | 240/21 20° | 220/19 13° | 230/21 6° | 260/26 -7° | 250/37 -19° | 270/66 -31° | 270/65 -38° | 280/60 -48° |
| SLN | used from 250 nm out; 68 nm from the line | 230/49 | 240/41 22° | 230/26 15° | 220/21 7° | 240/38 -8° | 240/44 -21° | 260/77 -29° | 270/70 -36° | 270/63 -48° |
| GCK | used from 400 nm out; 68 nm from the line | 240/40 22° | 240/40 14° | 240/38 7° | 230/39 -7° | 230/45 -20° | 250/73 -28° | 260/74 -36° | 260/64 -49° | |
| GLD | used from 550 nm out; 86 nm from the line | 260/37 | 260/25 14° | 250/27 8° | 230/36 -8° | 230/49 -21° | 250/71 -30° | 260/82 -36° | 250/73 -48° | |
| PUB | used from 599 nm out; 45 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° | ||
| ALS | used from 699 nm out; 20 nm from the line | 240/35 3° | 230/54 -9° | 240/66 -19° | 230/85 -26° | 240/87 -34° | 240/70 -47° | |||
| FMN | used from 799 nm out; 48 nm from the line | 220/16 6° | 220/39 1° | 220/50 -10° | 230/67 -23° | 230/94 -29° | 230/102 -35° | 230/90 -46° | ||
| BCE | used from 949 nm out; 78 nm from the line | 200/32 -2° | 210/57 -15° | 220/71 -22° | 220/69 -30° | 220/64 -38° | 220/67 -44° | |||
| LAS | used from 1099 nm out; 65 nm from the line | 210/20 8° | 210/29 4° | 200/32 -3° | 200/51 -15° | 210/64 -21° | 220/70 -30° | 220/66 -38° | 220/55 -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 |
|---|---|---|---|---|---|---|---|
| STL St Louis, MO | departure | VFR Sky: a few clouds at 25,000 feet | from the south-southwest (210°) at 7 knots | 10+ mi | none | 617 ft | 5:51 am CDT (10:51 UTC) |
| COU Columbia, MO | 90 nm out, 6 nm northeast of the line, tower | VFR | from the south-southwest (200°) at 7 knots | 10+ mi | none | 889 ft | 09:54 UTC |
| IXD Olathe, KS | 210 nm out, 10 nm north of the line, tower | VFR | from the south (180°) at 10 knots | 10+ mi | none | 1,087 ft | 10:53 UTC |
| SLN Salina, KS | 340 nm out, 16 nm north of the line, tower | VFR | from the south (190°) at 15 knots, gusting to 22 | 10+ mi | none | 1,288 ft | 10:53 UTC |
| GBD Great Bend, KS | 400 nm out, 6 nm south of the line | VFR | from the south-southwest (200°) at 15 knots | 10+ mi | none | 1,886 ft | 09:56 UTC |
| GCK Garden City, KS | 490 nm out, 22 nm south of the line, tower | VFR | from the south-southwest (200°) at 17 knots, gusting to 29 | 10+ mi | none | 2,890 ft | 09:54 UTC |
| PUB Pueblo, CO | 659 nm out, 24 nm north of the line, tower | VFR | from the northwest (320°) at 3 knots | 10+ mi | none | 4,729 ft | 10:53 UTC |
| RCV Del Norte, CO | 759 nm out, 5 nm northeast of the line | VFR | from the west-southwest (240°) at 18 knots, gusting to 24 | 10+ mi | none | 7,955 ft | 10:35 UTC |
| CEZ Cortez, CO | 869 nm out, 3 nm east of the line | VFR Sky: a broken layer at 6,500 feet, overcast at 8,000 feet | from the southwest (230°) at 8 knots | 10+ mi | 6,500 ft | 5,917 ft | 10:53 UTC |
| PGA Page, AZ | 999 nm out, 7 nm northwest of the line | VFR | from the south (190°) at 5 knots | 10+ mi | none | 4,316 ft | 10:53 UTC |
| LAS Las Vegas, NV | destination | VFR Sky: a few clouds at 8,000 feet, scattered clouds at 10,000 feet | from the south (180°) at 6 knots | 10+ mi | none | 2,183 ft | 2:56 am PDT (09:56 UTC) |
The highest airport on this list sits at 7,955 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, 4:12 pm PDT (23:12 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 VFR
The whole forecast for LAS
- From Mon 2:00 am PDT (09:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds 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 9:00 pm PDT (04:00 UTC): wind from the southwest at 8 knots, visibility more than 6 miles, a few clouds at 8,000 feet, scattered clouds at 10,000 feet
The forecast for STL, the departure
- From Mon 4:00 am CDT (09:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 6:00 pm CDT (23:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, a few clouds at 25,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 23 nm from the route, 80 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
- 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 STL 6:27 pm CDT (23:27 UTC), at LAS 6:07 pm PDT (01:07 UTC) (civil twilight ends 6:33 pm PDT (01:33 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 Lambert International, Harry Reid International.