St. Louis Downtown Airport to Laredo International CPS → LRD
810 nautical miles (932 statute miles) southwest on a straight line, true course 218°, about 218° magnetic at the departure end (variation 0E). At 120 knots that is 6 h 45 min at the quickest height in today's winds (39,000 ft, no wind along the track), arriving about 4:11 am CDT (09:11 UTC), after sunset at the destination. Right now CPS is VFR, wind from the south (170°) at 4 knots; LRD is VFR, wind from the east-southeast (120°) 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: 1 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
No SIGMET or AIRMET covers any part of this route right now.
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
- CRJ7 at 36,000 ft, 35 nm southeast, 7:10 pm CDT (00:10 UTC): no turbulence, remarks: ZME20. 280 nm along the route, 35 nm southeast of the line.
as filed, and in English
HOT UA /OV HOT/TM 0010/FL360/TP CRJ7/TB NEG/RM ZME20
- Report
- a routine report filed through HOT
- Where
- over HOT
- Time
- 00:10 UTC
- Height
- at 36,000 ft
- Aircraft
- CRJ7
- Turbulence
- none
- Remarks
- ZME20
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 10 forecast points nearest it (STL, CGI, SGF, LIT, FSM, SHV, DAL, CLL, SAT, LRD). 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 20 kt | +20 kt | 100 kt | 8 h 06 min | 5:32 am CDT (10:32 UTC) | |
| 6,500 ft | 220° at 18 kt | +19 kt | 16 °C | 101 kt | 8 h 01 min | 5:27 am CDT (10:27 UTC) |
| 8,500 ft | 220° at 16 kt | +17 kt | 14 °C | 103 kt | 7 h 52 min | 5:18 am CDT (10:18 UTC) |
| 10,500 ft | 230° at 15 kt | +14 kt | 10 °C | 106 kt | 7 h 38 min | 5:04 am CDT (10:04 UTC) |
| 12,500 ft | 240° at 14 kt | +13 kt | 7 °C | 107 kt | 7 h 34 min | 5:00 am CDT (10:00 UTC) |
| 14,500 ft | 240° at 15 kt | +13 kt | 3 °C | 107 kt | 7 h 34 min | 5:00 am CDT (10:00 UTC) |
| 16,500 ft | 240° at 16 kt | +14 kt | -2 °C | 106 kt | 7 h 38 min | 5:04 am CDT (10:04 UTC) |
| 18,000 ft FL180 | 250° at 17 kt | +15 kt | -5 °C | 105 kt | 7 h 43 min | 5:09 am CDT (10:09 UTC) |
| 24,000 ft FL240 | 250° at 17 kt | +14 kt | -15 °C | 106 kt | 7 h 38 min | 5:04 am CDT (10:04 UTC) |
| 30,000 ft FL300 | 280° at 27 kt | +10 kt | -30 °C | 110 kt | 7 h 22 min | 4:48 am CDT (09:48 UTC) |
| 34,000 ft FL340 | 290° at 29 kt | +10 kt | -40 °C | 110 kt | 7 h 22 min | 4:48 am CDT (09:48 UTC) |
| 39,000 ft FL390 | 310° at 33 kt | 0 | -51 °C | 120 kt | 6 h 45 min | 4:11 am CDT (09:11 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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; 31 nm from the line | 250/24 | 250/24 16° | 260/23 9° | 270/16 6° | 260/25 -6° | 270/29 -19° | 290/34 -33° | 290/48 -41° | 290/54 -51° |
| CGI | used from 50 nm out; 77 nm from the line | 240/20 | 270/15 15° | 280/15 11° | 300/13 6° | 290/20 -6° | 280/24 -18° | 300/34 -32° | 300/47 -41° | 310/49 -51° |
| SGF | used from 100 nm out; 81 nm from the line | 230/33 | 230/28 15° | 250/20 13° | 240/18 7° | 250/20 -6° | 250/24 -17° | 280/42 -31° | 280/49 -40° | 290/46 -51° |
| LIT | used from 200 nm out; 63 nm from the line | 220/21 | 230/17 16° | 250/24 12° | 260/15 7° | 260/13 -5° | 280/25 -16° | 290/35 -30° | 300/42 -40° | 300/40 -52° |
| FSM | used from 250 nm out; 46 nm from the line | 210/27 | 250/23 16° | 250/20 13° | 240/17 8° | 250/18 -6° | 260/31 -16° | 280/42 -30° | 280/44 -40° | 290/38 -51° |
| SHV | used from 350 nm out; 81 nm from the line | 200/18 | 230/24 18° | 230/24 12° | 240/14 8° | 260/12 -4° | 240/11 -15° | 300/31 -29° | 300/32 -40° | 300/36 -52° |
| DAL | used from 400 nm out; 77 nm from the line | 190/29 | 220/23 17° | 220/17 13° | 250/18 8° | 230/18 -5° | 240/18 -15° | 270/34 -29° | 280/33 -39° | 300/36 -51° |
| CLL | used from 500 nm out; 55 nm from the line | 170/22 | 170/26 18° | 200/15 14° | 240/13 8° | 240/15 -5° | 260/17 -13° | 290/27 -29° | 290/22 -40° | 320/30 -51° |
| SAT | used from 600 nm out; 60 nm from the line | 150/26 | 180/18 19° | 180/18 14° | 200/14 9° | 230/16 -6° | 210/9 -13° | 270/8 -29° | 280/6 -39° | 340/19 -51° |
| LRD | used from 750 nm out; 35 nm from the line | 150/27 | 170/24 17° | 170/20 14° | 180/12 10° | 230/19 -4° | 160/10 -14° | 130/10 -28° | 110/7 -39° | 010/22 -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 |
|---|---|---|---|---|---|---|---|
| CPS Cahokia/St Louis, IL | departure | VFR | from the south (170°) at 4 knots | 10+ mi | none | 412 ft | 8:53 pm CDT (01:53 UTC) |
| FAM Farmington, MO | 50 nm out, 20 nm southeast of the line | VFR | calm | 10+ mi | none | 945 ft | 20:07 UTC |
| MNF Mountain View, MO | 120 nm out, 1 nm northwest of the line | no report just now | 1,182 ft | ||||
| RUE Russellville, AR | 240 nm out, 8 nm southeast of the line | VFR | calm | 10+ mi | none | 409 ft | 01:53 UTC |
| MEZ Mena, AR | 310 nm out, 12 nm northwest of the line | VFR | variable at 3 knots | 10+ mi | none | 1,079 ft | 02:15 UTC |
| DEQ De Queen, AR | 340 nm out, 3 nm northwest of the line | VFR | calm | 10+ mi | none | 354 ft | 01:53 UTC |
| TYR Tyler, TX | 450 nm out, 15 nm southeast of the line, tower | VFR | from the south-southeast (160°) at 5 knots | 10+ mi | none | 543 ft | 01:53 UTC |
| LXY Mexia, TX | 520 nm out, 8 nm northwest of the line | VFR | from the south-southeast (160°) at 6 knots | 10+ mi | none | 544 ft | 02:15 UTC |
| AUS Austin, TX | 630 nm out, 10 nm northwest of the line, tower | VFR Sky: a few clouds at 12,000 feet, a few clouds at 25,000 feet | from the south-southeast (150°) at 9 knots | 10+ mi | none | 541 ft | 01:53 UTC |
| BAZ New Braunfels, TX | 660 nm out, 8 nm northwest of the line, tower | VFR | from the south-southeast (160°) at 9 knots | 10+ mi | none | 658 ft | 01:51 UTC |
| COT Cotulla, TX | 760 nm out, 19 nm northwest of the line | VFR | from the southeast (140°) at 13 knots | 10+ mi | none | 474 ft | 01:53 UTC |
| LRD Laredo, TX | destination | VFR | from the east-southeast (120°) at 8 knots | 10+ mi | none | 508 ft | 8:56 pm CDT (01:56 UTC) |
The highest airport on this list sits at 1,182 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LRD when you get there the forecast at the estimated arrival, 4:11 am CDT (09:11 UTC)
Wind from the southeast at 10 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 3,000 feet marginal VFR
The whole forecast for LRD
- From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet
- From Mon 2:00 am CDT (07:00 UTC): wind from the southeast at 10 knots, visibility more than 6 miles, a few clouds at 2,000 feet, overcast at 10,000 feet
- From Mon 4:00 am CDT (09:00 UTC): wind from the southeast at 10 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 3,000 feet
- At times between Mon 7:00 am CDT (12:00 UTC) and 11:00 am CDT (16:00 UTC): a broken layer at 2,500 feet
- From Mon 11:00 am CDT (16:00 UTC): wind from the south-southeast at 16 knots, gusting to 23, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 5,000 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
- 6/5849 Austin, TX, Friday, October 2, 2026 through Monday, October 12, 2026 UTC 15 nm from the route, 620 nm along the route · drones kept away from a public gathering · until 12 October · ZHU
Daylight
Sunset at CPS 6:27 pm CDT (23:27 UTC), at LRD 7:12 pm CDT (00:12 UTC) (civil twilight ends 7:35 pm CDT (00:35 UTC)). At 120 knots the arrival at LRD is before sunrise there (7:36 am CDT (12:36 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 Downtown Airport, Laredo International.