Austin-Bergstrom International to St. Louis Downtown Airport AUS → CPS
625 nautical miles (719 statute miles) northeast on a straight line, true course 034°, about 030° magnetic at the departure end (variation 4E). At 120 knots that is 4 h 30 min at the quickest height in today's winds (7,500 ft, a 19-knot tailwind), arriving about 12:35 am CDT (05:35 UTC), after sunset at the destination. Right now AUS is VFR, wind from the south-southeast (150°) at 12 knots; CPS is VFR, wind from the south-southeast (160°) at 5 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: 2 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 AUS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A320 at 26,500 ft, 45 nm southeast, 5:46 pm CDT (22:46 UTC): moderate clear-air turbulence, remarks: ZFW86. 198 nm along the route, 45 nm southeast of the line.
as filed, and in English
GGG UA /OV GGG/TM 2246/FL265/TP A320/TB MOD CAT/RM ZFW86
- Report
- a routine report filed through GGG
- Where
- over GGG
- Time
- 22:46 UTC
- Height
- at 26,500 ft
- Aircraft
- A320
- Turbulence
- moderate clear-air turbulence
- Remarks
- ZFW86
- CRJ7 at 36,000 ft, 39 nm southeast, 7:10 pm CDT (00:10 UTC): no turbulence, remarks: ZME20. 347 nm along the route, 39 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 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 7 forecast points nearest it (CLL, DAL, SHV, FSM, LIT, SGF, 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 |
|---|---|---|---|---|---|---|
| 3,500 ft | 200° at 16 kt | −16 kt | 136 kt | 4 h 36 min | 12:41 am CDT (05:41 UTC) | |
| 5,500 ft | 210° at 17 kt | −17 kt | 137 kt | 4 h 34 min | 12:39 am CDT (05:39 UTC) | |
| 7,500 ft | 220° at 19 kt | −19 kt | 14 °C | 139 kt | 4 h 30 min | 12:35 am CDT (05:35 UTC) |
| 9,500 ft | 240° at 20 kt | −19 kt | 11 °C | 139 kt | 4 h 30 min | 12:35 am CDT (05:35 UTC) |
| 11,500 ft | 250° at 19 kt | −16 kt | 8 °C | 136 kt | 4 h 36 min | 12:41 am CDT (05:41 UTC) |
| 13,500 ft | 250° at 18 kt | −14 kt | 4 °C | 134 kt | 4 h 40 min | 12:45 am CDT (05:45 UTC) |
| 15,500 ft | 260° at 18 kt | −12 kt | 0 °C | 132 kt | 4 h 44 min | 12:49 am CDT (05:49 UTC) |
| 17,500 ft | 270° at 18 kt | −10 kt | -4 °C | 130 kt | 4 h 48 min | 12:53 am CDT (05:53 UTC) |
| 18,000 ft FL180 | 270° at 18 kt | −10 kt | -5 °C | 130 kt | 4 h 48 min | 12:53 am CDT (05:53 UTC) |
| 24,000 ft FL240 | 280° at 20 kt | −9 kt | -16 °C | 129 kt | 4 h 51 min | 12:56 am CDT (05:56 UTC) |
| 30,000 ft FL300 | 290° at 35 kt | −8 kt | -30 °C | 128 kt | 4 h 53 min | 12:58 am CDT (05:58 UTC) |
| 34,000 ft FL340 | 300° at 37 kt | −6 kt | -41 °C | 126 kt | 4 h 58 min | 1:03 am CDT (06:03 UTC) |
| 39,000 ft FL390 | 300° at 42 kt | −2 kt | -52 °C | 122 kt | 5 h 07 min | 1:12 am CDT (06:12 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLL | used from 0 nm out; 54 nm from the line | 160/18 | 190/18 16° | 200/19 12° | 220/14 7° | 260/18 -5° | 250/20 -13° | 290/29 -29° | 290/31 -40° | 300/22 -53° |
| DAL | used from 99 nm out; 64 nm from the line | 180/21 | 190/24 15° | 230/20 12° | 220/23 8° | 240/22 -5° | 230/18 -15° | 280/33 -29° | 280/36 -39° | 300/33 -52° |
| SHV | used from 198 nm out; 82 nm from the line | 190/11 | 230/19 17° | 230/26 12° | 260/15 7° | 280/16 -4° | 300/17 -15° | 300/34 -30° | 300/31 -41° | 310/42 -52° |
| FSM | used from 248 nm out; 86 nm from the line | 200/18 | 210/19 15° | 230/22 13° | 250/18 7° | 270/20 -5° | 280/24 -16° | 280/35 -30° | 290/37 -40° | 300/40 -52° |
| LIT | used from 397 nm out; 75 nm from the line | 220/12 | 250/12 17° | 250/18 12° | 260/22 6° | 310/14 -5° | 310/25 -17° | 310/40 -31° | 310/38 -41° | 310/46 -52° |
| SGF | used from 447 nm out; 73 nm from the line | 210/21 | 210/21 16° | 240/28 12° | 260/24 7° | 280/21 -6° | 280/26 -18° | 290/38 -31° | 290/37 -41° | 300/49 -52° |
| STL | used from 546 nm out; 58 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 |
|---|---|---|---|---|---|---|---|
| AUS Austin, TX | departure | VFR Sky: a few clouds at 12,000 feet, a few clouds at 25,000 feet | from the south-southeast (150°) at 12 knots | 10+ mi | none | 541 ft | 7:53 pm CDT (00:53 UTC) |
| GTU Georgetown, TX | 20 nm out, 17 nm northwest of the line, tower | VFR | from the south-southeast (150°) at 7 knots | 10+ mi | none | 789 ft | 00:55 UTC |
| CNW Waco, TX | 89 nm out, 24 nm northwest of the line, tower | VFR | from the south-southeast (160°) at 9 knots | 10+ mi | none | 470 ft | 23:55 UTC |
| TYR Tyler, TX | 169 nm out, 21 nm southeast of the line, tower | VFR | from the south-southeast (150°) at 6 knots | 10+ mi | none | 543 ft | 00:53 UTC |
| JDD Mineola/Quitman, TX | 189 nm out, 3 nm southeast of the line | VFR | calm | 10+ mi | none | 432 ft | 23:35 UTC |
| DEQ De Queen, AR | 288 nm out, 4 nm south of the line | VFR | calm | 10+ mi | none | 354 ft | 00:53 UTC |
| MEZ Mena, AR | 318 nm out, 8 nm west of the line | VFR | calm | 10+ mi | none | 1,079 ft | 23:35 UTC |
| RUE Russellville, AR | 377 nm out, 11 nm east of the line | VFR | calm | 10+ mi | none | 409 ft | 00:53 UTC |
| UNO West Plains, MO | 496 nm out, 3 nm west of the line | VFR | from the south-southwest (200°) at 5 knots | 10+ mi | none | 1,228 ft | 00:53 UTC |
| MNF Mountain View, MO | 506 nm out, 1 nm south of the line | no report just now | 1,182 ft | ||||
| FAM Farmington, MO | 576 nm out, 21 nm southeast of the line | VFR | calm | 10+ mi | none | 945 ft | 20:07 UTC |
| CPS Cahokia/St Louis, IL | destination | VFR | from the south-southeast (160°) at 5 knots | 10+ mi | none | 412 ft | 7:53 pm CDT (00:53 UTC) |
The highest airport on this list sits at 1,228 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At CPS when you get there the forecast at the estimated arrival, 12:35 am CDT (05:35 UTC)
Wind light and variable, visibility more than 6 miles, clear skies VFR
The whole forecast for CPS
- 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
The forecast for AUS, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 14 knots, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 25,000 feet
- From Sun 10:00 pm CDT (03:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet
- From Mon 7:00 am CDT (12:00 UTC): wind from the south-southeast at 3 knots, visibility more than 6 miles, a broken layer at 1,500 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Mon 2:00 pm CDT (19:00 UTC): wind from the south at 13 knots, visibility more than 6 miles, a broken layer at 4,000 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 6 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZHU
Daylight
Sunset at AUS 7:03 pm CDT (00:03 UTC), at CPS 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:53 pm CDT (23:53 UTC)). At 120 knots the arrival at CPS is before sunrise there (7:06 am CDT (12:06 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: Austin-Bergstrom International, St. Louis Downtown Airport.