San Diego International to St. Louis Lambert International SAN → STL
1,351 nautical miles (1,554 statute miles) northeast on a straight line, true course 067°, about 056° magnetic at the departure end (variation 11E). At 120 knots that is 7 h 41 min at the quickest height in today's winds (34,000 ft, a 56-knot tailwind), arriving about 3:07 am CDT (08:07 UTC), after sunset at the destination. 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
- SIGMET W69W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 218 to 407 nm out.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 69W VALID UNTIL 0155Z TX NM AZ FROM 50ENE PGS-60SE ABQ-20ENE ELP-70SSW SSO-50SE BZA-50ENE PGS AREA TS MOV FROM 23040KT. TOPS TO FL340.
- SIGMET W68W: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 427 to 655 nm out.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 68W VALID UNTIL 0155Z CO NM AZ UT FROM 30W CHE-20NNW TBE-60SE ABQ-40N SJN-30SW MTU-30W CHE AREA TS MOV FROM 23040KT. TOPS TO FL360.
- AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 30 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 20 to 109 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Near the route, 119 nm along the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 218 to 497 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 268 to 695 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, 318 nm along the route.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Near the route, 576 nm along 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 SAN.
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 20:00–03:00 UTC · at 120 knots true airspeed
The eastbound cruising heights for this course (VFR: odd 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 (SAN, BLH, PRC, FMN, ABQ, ALS, TCC, GCK, ICT, MKC, COU, STL). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 210° at 27 kt | −18 kt | 21 °C | 138 kt | 9 h 47 min | 5:13 am CDT (10:13 UTC) |
| 7,500 ft | 220° at 27 kt | −22 kt | 12 °C | 142 kt | 9 h 31 min | 4:57 am CDT (09:57 UTC) |
| 9,500 ft | 220° at 27 kt | −24 kt | 9 °C | 144 kt | 9 h 23 min | 4:49 am CDT (09:49 UTC) |
| 11,500 ft | 230° at 27 kt | −25 kt | 6 °C | 145 kt | 9 h 19 min | 4:45 am CDT (09:45 UTC) |
| 13,500 ft | 230° at 29 kt | −27 kt | 2 °C | 147 kt | 9 h 11 min | 4:37 am CDT (09:37 UTC) |
| 15,500 ft | 230° at 31 kt | −29 kt | -3 °C | 149 kt | 9 h 04 min | 4:30 am CDT (09:30 UTC) |
| 17,500 ft | 230° at 33 kt | −31 kt | -7 °C | 151 kt | 8 h 57 min | 4:23 am CDT (09:23 UTC) |
| 18,000 ft FL180 | 230° at 34 kt | −32 kt | -8 °C | 152 kt | 8 h 53 min | 4:19 am CDT (09:19 UTC) |
| 24,000 ft FL240 | 230° at 41 kt | −39 kt | -19 °C | 159 kt | 8 h 30 min | 3:56 am CDT (08:56 UTC) |
| 30,000 ft FL300 | 240° at 52 kt | −51 kt | -29 °C | 171 kt | 7 h 54 min | 3:20 am CDT (08:20 UTC) |
| 34,000 ft FL340 | 240° at 55 kt | −56 kt | -37 °C | 176 kt | 7 h 41 min | 3:07 am CDT (08:07 UTC) |
| 39,000 ft FL390 | 250° at 51 kt | −52 kt | -48 °C | 172 kt | 7 h 51 min | 3:17 am CDT (08:17 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAN | used from 0 nm out; 25 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° |
| BLH | used from 50 nm out; 61 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° |
| PRC | used from 199 nm out; 45 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° | ||
| FMN | used from 397 nm out; 103 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° | ||
| ABQ | used from 497 nm out; 56 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° | ||
| ALS | used from 596 nm out; 75 nm from the line | 210/32 5° | 230/48 -8° | 230/49 -20° | 230/78 -30° | 240/74 -36° | 240/61 -47° | |||
| TCC | used from 645 nm out; 86 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° | |
| GCK | used from 745 nm out; 101 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° | |
| ICT | used from 943 nm out; 44 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° |
| MKC | used from 1092 nm out; 66 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° |
| COU | used from 1192 nm out; 51 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° |
| STL | used from 1291 nm out; 35 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° |
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 |
|---|---|---|---|---|---|---|---|
| SAN San Diego, CA | departure | no report just now | 16 ft | ||||
| RNM Ramona, CA | 20 nm out, 11 nm northwest of the line, tower | no report just now | 1,394 ft | ||||
| PRC Prescott, AZ | 268 nm out, 19 nm northwest of the line, tower | no report just now | 5,045 ft | ||||
| INW Winslow, AZ | 348 nm out, 11 nm north of the line | no report just now | 4,941 ft | ||||
| GUP Gallup, NM | 447 nm out, 8 nm north of the line | no report just now | 6,472 ft | ||||
| LAM Los Alamos, NM | 576 nm out, 9 nm south of the line | no report just now | 7,170 ft | ||||
| EHA Elkhart, KS | 794 nm out, 1 nm southeast of the line | no report just now | 3,621 ft | ||||
| HQG Hugoton, KS | 824 nm out, 4 nm northwest of the line | no report just now | 3,134 ft | ||||
| BEC Wichita, KS | 1023 nm out, 10 nm south of the line, tower | no report just now | 1,408 ft | ||||
| BUM Butler, MO | 1162 nm out, 0 nm northeast of the line | no report just now | 893 ft | ||||
| JEF Jefferson City, MO | 1271 nm out, 5 nm west of the line, tower | no report just now | 549 ft | ||||
| STL St Louis, MO | destination | no report just now | 617 ft |
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 STL when you get there the forecast at the estimated arrival, 3:07 am CDT (08:07 UTC)
STL has no terminal forecast; use the nearest airport that does.
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, 70 nm along the route · security · until 13 July · ZLA
Daylight
Sunset at SAN 6:19 pm PDT (01:19 UTC), at STL 6:29 pm CDT (23:29 UTC) (civil twilight ends 6:55 pm CDT (23:55 UTC)). At 120 knots the arrival at STL is before sunrise there (7:07 am CDT (12:07 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: San Diego International, St. Louis Lambert International.
