Plan a flight · Sun 8:41 pm CDT (01:41 UTC)

St. Louis Downtown Airport to Los Angeles International CPS → LAX

1,390 nautical miles (1,600 statute miles) west on a straight line, true course 267°, about 267° magnetic at the departure end (variation 0E). At 120 knots that is 13 h 07 min at the quickest height in today's winds (4,500 ft, a 14-knot headwind), arriving about 7:48 am PDT (14:48 UTC). Right now CPS is VFR, wind from the south-southeast (160°) at 5 knots; LAX is VFR, wind from the west-southwest (240°) at 8 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: 7 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 9:55 pm CDT (02:55 UTC). Over the route from 695 to 913 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 9:55 pm CDT (02:55 UTC). Over the route from 993 to 1082 nm out.

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 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 238 to 616 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 626 to 1162 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 675 to 804 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 715 to 894 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 774 to 774 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 963 to 1182 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 1043 to 1142 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1052 to 1291 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 1201 to 1370 nm out.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 89 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 CPS.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

urgent GLF6 at 45,000 ft, 46 nm north, 6:57 pm CDT (23:57 UTC): severe turbulence, remarks: a/c had to exit auto pilot, 45 degree pitch-zdv. 894 nm along the route, 46 nm north 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
GLF4 at 43,000 ft, 49 nm north, 7:15 pm CDT (00:15 UTC): moderate turbulence, remarks: zdvwc. 884 nm along the route, 49 nm north 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
B38M at 14,000 ft, 6 nm east, 7:13 pm CDT (00:13 UTC): moderate turbulence, light rime icing, 8 °C. 1321 nm along the route, 6 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT053034/TM 0013/FL140/TP B38M/TA 08/TB MODERATE TURBULENCE/IC LIGHT RIME ICE 190 - 170
```
Report
a routine report filed through ONT
Where
34 nm northeast (053°) of ONT
Time
00:13 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
8 °C
Turbulence
moderate turbulence
Icing
light rime ice at 19,000 ft at 17,000 ft
E145 at 7,400 ft, 26 nm north, 7:15 pm CDT (00:15 UTC): remarks: reported below minimums visibility 1/2SM ZDVWC-41. 745 nm along the route, 26 nm north of the line.
as filed, and in English
```
ALS UA /OV ALS/TM 0015/FL074/TP E145/SK VASE UNKN/RM REPORTED BLO MINIMUMS VIS 1/2SM ZDVWC-41
```
Report
a routine report filed through ALS
Where
over ALS
Time
00:15 UTC
Height
at 7,400 ft
Aircraft
E145
Sky
vase unknown
Remarks
reported below minimums visibility 1/2SM ZDVWC-41
E145 at 7,400 ft, 31 nm north, 7:15 pm CDT (00:15 UTC): remarks: base reported below minimums 1/2 miles visibility ZDVWC-41. 745 nm along the route, 31 nm north of the line.
as filed, and in English
```
ALS UA /OV KALS/TM 0015/FL074/TP E145/RM BASE REPORTED BELOW MINIMUMS 1/2 SM VIS ZDVWC-41
```
Report
a routine report filed through ALS
Where
over KALS
Time
00:15 UTC
Height
at 7,400 ft
Aircraft
E145
Remarks
base reported below minimums 1/2 miles visibility ZDVWC-41
BE9L at 20,000 ft, 35 nm north, 7:59 pm CDT (00:59 UTC): light chop turbulence, remarks: instrument conditions ZDVWC-36. 834 nm along the route, 35 nm north 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
E75L at 14,000 ft, 16 nm northwest, 8:28 pm CDT (01:28 UTC): light to moderate turbulence from 19,000 ft to 25,000 ft, no icing, remarks: ZDVWC-36. 854 nm along the route, 16 nm northwest 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
G280 at 45,000 ft, 21 nm south, 6:44 pm CDT (23:44 UTC): light to moderate turbulence, remarks: zab fdcs. 983 nm along the route, 21 nm south of the line.
as filed, and in English
```
INW UA /OV INW015040/TM 2344/FL450/TP G280/TB LGT-MOD/RM ZAB FDCS
```
Report
a routine report filed through INW
Where
40 nm north (015°) of INW
Time
23:44 UTC
Height
at 45,000 ft
Aircraft
G280
Turbulence
light to moderate
Remarks
zab fdcs
PC12 at 14,000 ft, 48 nm south, 8:03 pm CDT (01:03 UTC): light rime icing, remarks: zab/fdcs. 1072 nm along the route, 48 nm south of the line.
as filed, and in English
```
FLG UA /OV FLG210030/TM 0103/FL140/TP PC12/TA UNK/IC LGT RIME/RM ZAB/FDCS
```
Report
a routine report filed through FLG
Where
30 nm southwest (210°) of FLG
Time
01:03 UTC
Height
at 14,000 ft
Aircraft
PC12
Temperature
UNK
Icing
light rime
Remarks
zab/fdcs
C172 at 7,200 ft, 50 nm south, 8:06 pm CDT (01:06 UTC): overcast from 7,200 ft to 9,000 ft. 1092 nm along the route, 50 nm south of the line.
as filed, and in English
```
PRC UA /OV 6NE PRC/TM 0106/FL072/TP C172/SK OVC072-TOP090
```
Report
a routine report filed through PRC
Where
6NE prc
Time
01:06 UTC
Height
at 7,200 ft
Aircraft
C172
Sky
overcast from 7,200 ft, tops 9,000 ft
G280 at 41,000 ft, 44 nm north, 6:37 pm CDT (23:37 UTC): light to moderate clear-air turbulence, remarks: ZDVWC-46. 1221 nm along the route, 44 nm north of the line.
as filed, and in English
```
ALS UA /OV LAS190035/TM 2337/FL410/TP G280/TB LGT-MOD CAT/RM ZDVWC-46
```
Report
a routine report filed through ALS
Where
35 nm south (190°) of LAS
Time
23:37 UTC
Height
at 41,000 ft
Aircraft
G280
Turbulence
light to moderate clear-air turbulence
Remarks
ZDVWC-46
BCS3 at 31,000 ft, 46 nm north, 5:44 pm CDT (22:44 UTC): remarks: mountain wave 20 kts/zlawc. 1251 nm along the route, 46 nm north of the line.
as filed, and in English
```
DAG UA /OV DAG030040/TM 2244/FL310/TP BCS3/RM MTN WAVE /- 20 KTS/ZLAWC AWC-WEB
```
Report
a routine report filed through DAG
Where
40 nm northeast (030°) of DAG
Time
22:44 UTC
Height
at 31,000 ft
Aircraft
BCS3
Remarks
mountain wave 20 kts/zlawc
A21N at 29,500 ft, 30 nm northwest, 5:50 pm CDT (22:50 UTC): remarks: mountain wave 10-15 kts/zlawc. 1271 nm along the route, 30 nm northwest of the line.
as filed, and in English
```
DAG UA /OV DAG045010/TM 2250/FL295/TP A21N/RM MTN WAVE /- 10-15 KTS/ZLAWC AWC-WEB
```
Report
a routine report filed through DAG
Where
10 nm northeast (045°) of DAG
Time
22:50 UTC
Height
at 29,500 ft
Aircraft
A21N
Remarks
mountain wave 10-15 kts/zlawc
B739 at 33,000 ft, 22 nm northwest, 6:02 pm CDT (23:02 UTC): remarks: mountain wave 10 knots zlawc. At the destination end, 22 nm northwest of the line.
as filed, and in English
```
DRA UA /OV VCV242015/TM 2302/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
```
Report
a routine report filed through DRA
Where
15 nm southwest (242°) of VCV
Time
23:02 UTC
Height
at 33,000 ft
Aircraft
B739
Remarks
mountain wave 10 knots zlawc

12 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 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	200° at 25 kt	+14 kt	17 °C	106 kt	13 h 07 min	7:48 am PDT (14:48 UTC)
6,500 ft	210° at 26 kt	+18 kt	14 °C	102 kt	13 h 38 min	8:19 am PDT (15:19 UTC)
8,500 ft	220° at 26 kt	+22 kt	11 °C	98 kt	14 h 11 min	8:52 am PDT (15:52 UTC)
10,500 ft	230° at 27 kt	+24 kt	7 °C	96 kt	14 h 29 min	9:10 am PDT (16:10 UTC)
12,500 ft	230° at 28 kt	+26 kt	3 °C	94 kt	14 h 47 min	9:28 am PDT (16:28 UTC)
14,500 ft	230° at 30 kt	+28 kt	-1 °C	92 kt	15 h 07 min	9:48 am PDT (16:48 UTC)
16,500 ft	230° at 33 kt	+30 kt	-5 °C	90 kt	15 h 27 min	10:08 am PDT (17:08 UTC)
18,000 ft FL180	230° at 35 kt	+31 kt	-8 °C	89 kt	15 h 37 min	10:18 am PDT (17:18 UTC)
24,000 ft FL240	230° at 41 kt	+37 kt	-19 °C	83 kt	16 h 45 min	11:26 am PDT (18:26 UTC)
30,000 ft FL300	240° at 51 kt	+50 kt	-30 °C	70 kt	19 h 51 min	2:32 pm PDT (21:32 UTC)
34,000 ft FL340	240° at 53 kt	+53 kt	-37 °C	67 kt	20 h 45 min	3:26 pm PDT (22:26 UTC)
39,000 ft FL390	250° at 50 kt	+51 kt	-48 °C	69 kt	20 h 09 min	2:50 pm PDT (21:50 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
STL	used from 0 nm out; 19 nm from the line	210/13	260/16 17°	270/21 10°	280/24 5°	310/20 -7°	320/22 -18°	320/44 -33°	320/59 -43°	310/69 -51°
COU	used from 50 nm out; 30 nm from the line	210/16	220/19 15°	240/33 10°	250/29 7°	280/21 -6°	280/19 -18°	300/34 -31°	300/40 -42°	300/60 -52°
MKC	used from 149 nm out; 57 nm from the line	200/28	220/30 16°	270/20 11°	280/22 7°	260/27 -6°	270/27 -18°	280/38 -32°	270/38 -40°	280/50 -52°
ICT	used from 248 nm out; 78 nm from the line	190/34	210/34 18°	240/28 13°	260/23 7°	250/23 -6°	240/29 -17°	260/40 -30°	260/47 -40°	270/42 -51°
GCK	used from 447 nm out; 31 nm from the line		200/35 21°	220/34 14°	240/30 8°	240/27 -6°	240/31 -17°	240/53 -30°	250/55 -39°	250/60 -50°
PUB	used from 596 nm out; 85 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 695 nm out; 40 nm from the line				210/32 5°	230/48 -8°	230/49 -20°	230/78 -30°	240/74 -36°	240/61 -47°
FMN	used from 794 nm out; 48 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°
PRC	used from 993 nm out; 92 nm from the line			200/36 6°	210/46 0°	220/60 -10°	220/75 -19°	220/66 -26°	230/70 -33°	230/59 -45°
LAS	used from 1142 nm out; 76 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°
ONT	used from 1241 nm out; 84 nm from the line	230/11	200/17 6°	230/27 4°	230/32 -2°	210/39 -12°	220/51 -20°	220/48 -29°	210/51 -34°	210/52 -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	VFR	from the south-southeast (160°) at 5 knots	10+ mi	none	412 ft	7:53 pm CDT (00:53 UTC)
SUS St Louis, MO	20 nm out, 7 nm northwest of the line, tower	VFR	from the south-southeast (150°) at 5 knots	10+ mi	none	463 ft	00:54 UTC
BUM Butler, MO	199 nm out, 3 nm southeast of the line	no report just now				893 ft
HUT Hutchinson, KS	367 nm out, 4 nm northeast of the line, tower	VFR	from the south (170°) at 12 knots	10+ mi	none	1,542 ft	00:52 UTC
GCK Garden City, KS	496 nm out, 15 nm north of the line, tower	VFR	from the south (180°) at 12 knots	10+ mi	none	2,890 ft	00:54 UTC
TAD Trinidad, CO	675 nm out, 6 nm north of the line	VFR	from the west-southwest (240°) at 15 knots, gusting to 24	10+ mi	none	5,761 ft	00:54 UTC
FMN Farmington, NM	864 nm out, 17 nm north of the line, tower	VFR	from the west (270°) at 9 knots	10+ mi	none	5,506 ft	00:53 UTC
GCN Grand Canyon, AZ	1062 nm out, 20 nm north of the line, tower	IFR Sky: a broken layer at 500 feet, overcast at 1,000 feet Weather: mist	from the southwest (230°) at 17 knots, gusting to 25	5 mi	500 ft	6,608 ft	00:54 UTC
IFP Bullhead City, AZ	1182 nm out, 9 nm northwest of the line, tower	VFR Sky: a broken layer at 7,000 feet, a broken layer at 12,000 feet	from the south (190°) at 10 knots	10+ mi	7,000 ft	707 ft	01:35 UTC
EMT El Monte, CA	1370 nm out, 2 nm north of the line, tower	VFR Sky: scattered clouds at 4,000 feet	from the south-southeast (150°) at 6 knots	10+ mi	none	295 ft	00:45 UTC
LAX Los Angeles, CA	destination	VFR Sky: scattered clouds at 3,600 feet, a broken layer at 4,900 feet	from the west-southwest (240°) at 8 knots	10+ mi	4,900 ft	127 ft	5:53 pm PDT (00:53 UTC)

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, 7:48 am PDT (14:48 UTC)

Wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet VFR

30% chance between Mon 4:00 am PDT (11:00 UTC) and 10:00 am PDT (17:00 UTC): light rain showers

The whole forecast for LAX

From Sun 6:00 pm PDT (01:00 UTC): wind from the west-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 10,000 feet
From Sun 9:00 pm PDT (04:00 UTC): wind from the southwest at 6 knots, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
30% chance between Sun 9:00 pm PDT (04:00 UTC) and 3:00 am PDT (10:00 UTC): light rain showers
From Mon 4:00 am PDT (11:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
30% chance between Mon 4:00 am PDT (11:00 UTC) and 10:00 am PDT (17:00 UTC): light rain showers
From Mon 10:00 am PDT (17:00 UTC): wind from the west-southwest at 15 knots, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
30% chance between Mon 10:00 am PDT (17:00 UTC) and 4:00 pm PDT (23:00 UTC): light rain showers
From Mon 6:00 pm PDT (01:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet

The forecast for CPS, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 3:00 am CDT (08:00 UTC): wind light and variable, visibility 3 miles, mist, a few clouds at 25,000 feet
At times between Mon 3:00 am CDT (08:00 UTC) and 6:00 am CDT (11:00 UTC): visibility 1 mile, mist
From Mon 6:00 am CDT (11:00 UTC): wind from the southwest at 10 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

6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local on the route, 1182 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 CPS 6:27 pm CDT (23:27 UTC), at LAX 6:23 pm PDT (01:23 UTC) (civil twilight ends 6:48 pm PDT (01:48 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

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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, Los Angeles International.