Plan a flight · Sun 7:57 pm CDT (00:57 UTC)

St. Louis Lambert International to San Diego International STL → SAN

1,351 nautical miles (1,554 statute miles) west on a straight line, true course 263°, about 264° magnetic at the departure end (variation 1W). At 120 knots that is 13 h 07 min at the quickest height in today's winds (4,500 ft, a 17-knot headwind), arriving about 7:04 am PDT (14:04 UTC). Right now STL is VFR, wind from the southeast (130°) at 7 knots; SAN is VFR, wind from the west-southwest (250°) 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: 960 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 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 655 to 1082 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Near the route, 775 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 854 to 1132 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). Near the route, 1033 nm along the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Near the route, 1231 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 1241 to 1331 nm out.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 30 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

B38M at 37,000 ft, 13 nm south, 5:55 pm CDT (22:55 UTC): light to moderate chop turbulence, remarks: zab fdcs. 735 nm along the route, 13 nm south of the line.
as filed, and in English
```
AXX UA /OV CIM210040/TM 2255/FL370/TP B38M/TB LGT-CONS MOD CHOP/RM ZAB FDCS
```
Report
a routine report filed through AXX
Where
40 nm southwest (210°) of CIM
Time
22:55 UTC
Height
at 37,000 ft
Aircraft
B38M
Turbulence
lgt-cons moderate chop
Remarks
zab fdcs
CRJ7 at 10,000 ft, 26 nm south, 6:49 pm CDT (23:49 UTC): remarks: light turbulence, bases above 10,000 ft, vsby 3 miles continuously, during the descent rnav RY20 KSAF. 775 nm along the route, 26 nm south of the line.
as filed, and in English
```
SAF UA /OV KSAF/TM 2349/FL100 /TP CRJ7/RM LIGHT TURBULENCE, BASES ABOVE 100, VSBY 3 MILES CONTINUOUSLY, DURD RNAV RY20 KSAF
```
Report
a routine report filed through SAF
Where
over KSAF
Time
23:49 UTC
Height
at 10,000 ft
Aircraft
CRJ7
Remarks
light turbulence, bases above 10,000 ft, vsby 3 miles continuously, during the descent rnav RY20 KSAF
B737 at 14,000 ft, 45 nm south, 7:15 pm CDT (00:15 UTC): light turbulence above 14,000 ft. 824 nm along the route, 45 nm south of the line.
as filed, and in English
```
ABQ UA /OV ABQ275007/TM 0015/FL140/TP B737/TB LGT ABV 140
```
Report
a routine report filed through ABQ
Where
7 nm west (275°) of ABQ
Time
00:15 UTC
Height
at 14,000 ft
Aircraft
B737
Turbulence
light above 14,000 ft
HDJT at 18,000 ft, 38 nm south, 5:38 pm CDT (22:38 UTC): light rime icing from 16,000 ft to 17,500 ft, -9 °C, remarks: during the climb out of abq zab/fd. 824 nm along the route, 38 nm south of the line.
as filed, and in English
```
ABQ UA /OV ABQ285015/TM 2238/FL180/TP HDJT/TA M09/IC LGT RIME 160-175/RM DURC OUT OF ABQ - ZAB/FD
```
Report
a routine report filed through ABQ
Where
15 nm west (285°) of ABQ
Time
22:38 UTC
Height
at 18,000 ft
Aircraft
HDJT
Temperature
−9 °C
Icing
light rime from 16,000 ft to 17,500 ft
Remarks
during the climb out of abq zab/fd
G280 at 45,000 ft, 41 nm north, 6:44 pm CDT (23:44 UTC): light to moderate turbulence, remarks: zab fdcs. 973 nm along the route, 41 nm north 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
A320 at 14,000 ft, 18 nm southeast, 7:39 pm CDT (00:39 UTC): light to moderate turbulence, remarks: zab fdcs. 1063 nm along the route, 18 nm southeast of the line.
as filed, and in English
```
PHX UA /OV PXR005050/TM 0039/FL140/TP A320/TB LGT-MOD/RM ZAB FDCS
```
Report
a routine report filed through PHX
Where
50 nm north (005°) of PXR
Time
00:39 UTC
Height
at 14,000 ft
Aircraft
A320
Turbulence
light to moderate
Remarks
zab fdcs
B738 at 17,000 ft, 28 nm southeast, 6:54 pm CDT (23:54 UTC): light rime icing, 9 °C, remarks: during the descent. 1092 nm along the route, 28 nm southeast of the line.
as filed, and in English
```
PHX UA /OV PXR330030/TM 2354/FL170/TP B738/TA 09/IC LGT RIME/RM DURD
```
Report
a routine report filed through PHX
Where
30 nm northwest (330°) of PXR
Time
23:54 UTC
Height
at 17,000 ft
Aircraft
B738
Temperature
9 °C
Icing
light rime
Remarks
during the descent
CL60 at 3,000 ft, 2 nm northeast, 7:22 pm CDT (00:22 UTC): remarks: bases 3,000 ft tops 5,500 ft. At the destination end, 2 nm northeast of the line.
as filed, and in English
```
SEE UA /OV 4 MI WEST/TM 0022/FL030/TP CL60/RM BASES 030 TOPS 055
```
Report
a routine report filed through SEE
Where
4 mi west
Time
00:22 UTC
Height
at 3,000 ft
Aircraft
CL60
Remarks
bases 3,000 ft tops 5,500 ft
BE58 at 2,800 ft, 2 nm northeast, 5:52 pm CDT (22:52 UTC): overcast above 3,000 ft, remarks: during the descent. At the destination end, 2 nm northeast of the line.
as filed, and in English
```
SEE UA /OV SEE32005/TM 2252/FL028/TP BE58/SK OVC030/RM DURD
```
Report
a routine report filed through SEE
Where
SEE32005
Time
22:52 UTC
Height
at 2,800 ft
Aircraft
BE58
Sky
overcast from 3,000 ft
Remarks
during the descent
SR22 descending, 4 nm southeast, 5:43 pm CDT (22:43 UTC): overcast from 2,600 ft to 6,000 ft, remarks: during the descent. At the destination end, 4 nm southeast of the line.
as filed, and in English
```
MYF UA /OV MYF100010/TM 2243/FLUNKN/TP SR22/SK OVC026-TOP060/RM DURD
```
Report
a routine report filed through MYF
Where
10 nm east (100°) of MYF
Time
22:43 UTC
Height
height not given
Aircraft
SR22
Sky
overcast from 2,600 ft, tops 6,000 ft
Remarks
during the descent
C172 at 2,500 ft, 24 nm northwest, 5:34 pm CDT (22:34 UTC): a broken layer, remarks: bases 2,500 ft tops 4,000 ft. At the destination end, 24 nm northwest of the line.
as filed, and in English
```
CRQ UA /OV 1 MI WEST/TM 2234/FL025/TP C172/SK BKN/RM BASES 025 TOPS 040
```
Report
a routine report filed through CRQ
Where
1 mi west
Time
22:34 UTC
Height
at 2,500 ft
Aircraft
C172
Sky
a broken layer
Remarks
bases 2,500 ft tops 4,000 ft
C525 at 2,000 ft, 14 nm south, 5:11 pm CDT (22:11 UTC): remarks: bases of clouds at 2000. At the destination end, 14 nm south of the line.
as filed, and in English
```
SDM UA /OV 4NM WEST/TM 2211/FL020/TP C525/RM BASES OF CLOUDS AT 2000
```
Report
a routine report filed through SDM
Where
4NM west
Time
22:11 UTC
Height
at 2,000 ft
Aircraft
C525
Remarks
bases of clouds at 2000
B737 at 2,700 ft, 0 nm northwest, 7:08 pm CDT (00:08 UTC): remarks: bases 2,700 ft tops 5,000 ft. At the destination end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV 3 MI WEST/TM 0008/FL027/TP B737/RM BASES 027 TOPS 050
```
Report
a routine report filed through SAN
Where
3 mi west
Time
00:08 UTC
Height
at 2,700 ft
Aircraft
B737
Remarks
bases 2,700 ft tops 5,000 ft
B39M at 3,400 ft, 0 nm northwest, 7:04 pm CDT (00:04 UTC): a broken layer from 3,400 ft to 4,000 ft, remarks: during the descent RY27. At the destination end, 0 nm northwest of the line.
as filed, and in English
```
SAN UA /OV SAN/TM 0004/FL034/TP B39M/SK BKN034-TOP040/RM DURD RY27
```
Report
a routine report filed through SAN
Where
over SAN
Time
00:04 UTC
Height
at 3,400 ft
Aircraft
B39M
Sky
a broken layer from 3,400 ft, tops 4,000 ft
Remarks
during the descent RY27

4 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 12 forecast points nearest it (STL, COU, MKC, ICT, GCK, TCC, ALS, ABQ, FMN, PRC, BLH, SAN). 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	210° at 26 kt	+17 kt	21 °C	103 kt	13 h 07 min	7:04 am PDT (14:04 UTC)
6,500 ft	210° at 27 kt	+20 kt	15 °C	100 kt	13 h 31 min	7:28 am PDT (14:28 UTC)
8,500 ft	220° at 27 kt	+23 kt	11 °C	97 kt	13 h 56 min	7:53 am PDT (14:53 UTC)
10,500 ft	230° at 27 kt	+24 kt	7 °C	96 kt	14 h 04 min	8:01 am PDT (15:01 UTC)
12,500 ft	230° at 28 kt	+26 kt	3 °C	94 kt	14 h 22 min	8:19 am PDT (15:19 UTC)
14,500 ft	230° at 30 kt	+28 kt	0 °C	92 kt	14 h 41 min	8:38 am PDT (15:38 UTC)
16,500 ft	230° at 32 kt	+30 kt	-5 °C	90 kt	15 h 01 min	8:58 am PDT (15:58 UTC)
18,000 ft FL180	230° at 34 kt	+32 kt	-8 °C	88 kt	15 h 21 min	9:18 am PDT (16:18 UTC)
24,000 ft FL240	230° at 41 kt	+39 kt	-19 °C	81 kt	16 h 41 min	10:38 am PDT (17:38 UTC)
30,000 ft FL300	240° at 52 kt	+51 kt	-29 °C	69 kt	19 h 35 min	1:32 pm PDT (20:32 UTC)
34,000 ft FL340	240° at 55 kt	+56 kt	-37 °C	64 kt	21 h 07 min	3:04 pm PDT (22:04 UTC)
39,000 ft FL390	250° at 51 kt	+52 kt	-48 °C	68 kt	19 h 52 min	1:49 pm PDT (20:49 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
STL	used from 0 nm out; 25 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; 19 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; 55 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; 67 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 397 nm out; 77 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°
TCC	used from 596 nm out; 95 nm from the line		200/26	200/28 14°	220/25 7°	230/28 -7°	240/41 -19°	240/62 -28°	250/61 -37°	250/49 -49°
ALS	used from 695 nm out; 76 nm from the line				210/32 5°	230/48 -8°	230/49 -20°	230/78 -30°	240/74 -36°	240/61 -47°
ABQ	used from 745 nm out; 65 nm from the line			200/28 13°	210/28 5°	210/44 -7°	230/46 -20°	230/80 -28°	240/74 -35°	240/58 -47°
FMN	used from 844 nm out; 71 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 943 nm out; 120 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°
BLH	used from 1142 nm out; 49 nm from the line	230/22	210/24 11°	230/23 5°	230/26 0°	220/38 -10°	230/52 -19°	220/58 -28°	220/69 -34°	220/59 -45°
SAN	used from 1291 nm out; 35 nm from the line	200/10	240/19 9°	240/27 5°	230/22 -1°	220/40 -10°	220/49 -19°	220/54 -29°	220/61 -35°	220/56 -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
STL St Louis, MO	departure	VFR Sky: a few clouds at 25,000 feet	from the southeast (130°) at 7 knots	10+ mi	none	617 ft	7:51 pm CDT (00:51 UTC)
JEF Jefferson City, MO	79 nm out, 5 nm west of the line, tower	VFR	calm	10+ mi	none	549 ft	00:53 UTC
BUM Butler, MO	189 nm out, 0 nm northeast of the line	no report just now				893 ft
BEC Wichita, KS	328 nm out, 10 nm south of the line, tower	VFR	from the south (170°) at 11 knots	10+ mi	none	1,408 ft	00:35 UTC
HQG Hugoton, KS	526 nm out, 4 nm northwest of the line	VFR	from the south (180°) at 12 knots	10+ mi	none	3,134 ft	00:35 UTC
EHA Elkhart, KS	556 nm out, 1 nm southeast of the line	VFR	from the south (180°) at 10 knots	10+ mi	none	3,621 ft	00:35 UTC
LAM Los Alamos, NM	775 nm out, 9 nm south of the line	VFR Sky: a broken layer at 5,500 feet, overcast at 9,500 feet	variable at 6 knots	10+ mi	5,500 ft	7,170 ft	00:35 UTC
GUP Gallup, NM	904 nm out, 8 nm north of the line	VFR Sky: a few clouds at 8,500 feet	from the south (190°) at 8 knots	10+ mi	none	6,472 ft	00:53 UTC
INW Winslow, AZ	1003 nm out, 11 nm north of the line	VFR	from the south-southwest (200°) at 27 knots, gusting to 38	10+ mi	none	4,941 ft	23:56 UTC
PRC Prescott, AZ	1082 nm out, 19 nm northwest of the line, tower	marginal VFR Sky: a broken layer at 2,600 feet Weather: light rain, mist	from the south-southwest (200°) at 13 knots, gusting to 21	5 mi	2,600 ft	5,045 ft	00:53 UTC
RNM Ramona, CA	1331 nm out, 11 nm northwest of the line, tower	marginal VFR Sky: a broken layer at 1,600 feet, a broken layer at 2,600 feet, overcast at 3,700 feet Weather: light rain, mist	from the southwest (220°) at 6 knots, gusting to 12	6 mi	1,600 ft	1,394 ft	00:53 UTC
SAN San Diego, CA	destination	VFR Sky: a broken layer at 3,100 feet, overcast at 4,300 feet	from the west-southwest (250°) at 6 knots	10+ mi	3,100 ft	16 ft	5:51 pm PDT (00:51 UTC)

The highest airport on this list sits at 7,170 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SAN when you get there the forecast at the estimated arrival, 7:04 am PDT (14:04 UTC)

Wind from the southwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet VFR

The whole forecast for SAN

From Sun 5:00 pm PDT (00:00 UTC): wind from the southwest at 11 knots, visibility more than 6 miles, scattered clouds at 2,800 feet, a broken layer at 3,500 feet and more above
From Sun 8:00 pm PDT (03:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 3,500 feet
From Sun 11:00 pm PDT (06:00 UTC): wind from the southwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the west-southwest at 10 knots, gusting to 17, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 5,000 feet
From Mon 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet

The forecast for STL, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, clear skies
From Mon 1:00 am CDT (06:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a few 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

Temporary flight restrictions on the line or within 25 nm of it

6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local 5 nm from the route, 1281 nm along the route · security · until 13 July · ZLA

Daylight

Sunset at STL 6:27 pm CDT (23:27 UTC), at SAN 6:19 pm PDT (01:19 UTC) (civil twilight ends 6:44 pm PDT (01:44 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

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 Lambert International, San Diego International.