St. Louis Lambert International to Los Angeles International STL → LAX
1,381 nautical miles (1,589 statute miles) west on a straight line, true course 267°, about 268° magnetic at the departure end (variation 1W). At 120 knots that is 14 h 06 min at the quickest height in today's winds (8,500 ft, a 22-knot headwind), arriving about 6:15 pm PDT (01:15 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: 2,068 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 507 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 636 to 1073 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 665 to 735 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 685 to 884 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 993 to 1152 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). Near the route, 1023 nm along the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 1023 to 1341 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 1033 to 1142 nm out.
- AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 79 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 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, ICT, GCK, PUB, ALS, FMN, PRC, LAS, ONT). 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 29 kt | +27 kt | 17 °C | 93 kt | 14 h 51 min | 7:00 pm PDT (02:00 UTC) |
| 6,500 ft | 230° at 25 kt | +23 kt | 15 °C | 97 kt | 14 h 14 min | 6:23 pm PDT (01:23 UTC) |
| 8,500 ft | 230° at 26 kt | +22 kt | 10 °C | 98 kt | 14 h 06 min | 6:15 pm PDT (01:15 UTC) |
| 10,500 ft | 230° at 28 kt | +24 kt | 6 °C | 96 kt | 14 h 23 min | 6:32 pm PDT (01:32 UTC) |
| 12,500 ft | 230° at 30 kt | +26 kt | 2 °C | 94 kt | 14 h 41 min | 6:50 pm PDT (01:50 UTC) |
| 14,500 ft | 230° at 34 kt | +30 kt | -2 °C | 90 kt | 15 h 21 min | 7:30 pm PDT (02:30 UTC) |
| 16,500 ft | 230° at 37 kt | +33 kt | -6 °C | 87 kt | 15 h 52 min | 8:01 pm PDT (03:01 UTC) |
| 18,000 ft FL180 | 230° at 40 kt | +35 kt | -9 °C | 85 kt | 16 h 15 min | 8:24 pm PDT (03:24 UTC) |
| 24,000 ft FL240 | 230° at 51 kt | +46 kt | -20 °C | 74 kt | 18 h 40 min | 10:49 pm PDT (05:49 UTC) |
| 30,000 ft FL300 | 240° at 72 kt | +70 kt | -29 °C | 50 kt | 27 h 37 min | 7:46 am PDT (14:46 UTC) |
| 34,000 ft FL340 | 240° at 73 kt | +73 kt | -36 °C | 47 kt | 29 h 23 min | 9:32 am PDT (16:32 UTC) |
| 39,000 ft FL390 | 250° at 64 kt | +64 kt | -47 °C | 56 kt | 24 h 40 min | 4:49 am PDT (11:49 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; 15 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 149 nm out; 44 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° |
| ICT | used from 248 nm out; 73 nm from the line | 230/45 | 240/33 21° | 230/23 14° | 230/22 7° | 240/29 -7° | 240/36 -20° | 260/78 -29° | 270/69 -36° | 270/56 -49° |
| GCK | used from 397 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° | |
| PUB | used from 596 nm out; 74 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 695 nm out; 30 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 795 nm out; 38 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° | ||
| PRC | used from 993 nm out; 86 nm from the line | 200/37 6° | 200/35 0° | 220/60 -11° | 220/71 -20° | 220/88 -29° | 220/98 -35° | 220/94 -45° | ||
| LAS | used from 1142 nm out; 71 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° | |
| ONT | used from 1241 nm out; 75 nm from the line | 250/11 | 200/20 4° | 210/27 3° | 220/26 -4° | 240/32 -13° | 220/52 -21° | 220/67 -30° | 220/72 -37° | 220/65 -46° |
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 | no report just now | 617 ft | ||||
| JEF Jefferson City, MO | 79 nm out, 6 nm southwest of the line, tower | no report just now | 549 ft | ||||
| IXD Olathe, KS | 209 nm out, 23 nm north of the line, tower | no report just now | 1,087 ft | ||||
| HUT Hutchinson, KS | 358 nm out, 7 nm southeast of the line, tower | no report just now | 1,542 ft | ||||
| GCK Garden City, KS | 487 nm out, 8 nm northwest of the line, tower | no report just now | 2,890 ft | ||||
| TAD Trinidad, CO | 665 nm out, 1 nm west of the line | no report just now | 5,761 ft | ||||
| FMN Farmington, NM | 854 nm out, 12 nm north of the line, tower | no report just now | 5,506 ft | ||||
| GCN Grand Canyon, AZ | 1053 nm out, 17 nm north of the line, tower | no report just now | 6,608 ft | ||||
| IFP Bullhead City, AZ | 1172 nm out, 8 nm northwest of the line, tower | no report just now | 707 ft | ||||
| EMT El Monte, CA | 1361 nm out, 2 nm north of the line, tower | no report just now | 295 ft | ||||
| LAX Los Angeles, CA | destination | no report just now | 127 ft |
The highest airport on this list sits at 6,608 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LAX when you get there the forecast at the estimated arrival, 6:15 pm PDT (01:15 UTC)
LAX has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local on the route, 1172 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 13 nm from the route, at the destination end · security · ZLA
Daylight
Sunset at STL 6:27 pm CDT (23:27 UTC), at LAX 6:22 pm PDT (01:22 UTC) (civil twilight ends 6:47 pm PDT (01:47 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, Los Angeles International.