City Of Colorado Springs Municipal to Austin-Bergstrom International COS → AUS
623 nautical miles (717 statute miles) southeast on a straight line, true course 144°, about 136° magnetic at the departure end (variation 8E). At 120 knots that is 4 h 27 min at the quickest height in today's winds (39,000 ft, a 20-knot tailwind), arriving about 3:05 am CDT (08:05 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: 9 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 W11W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 10:55 pm MDT (04:55 UTC). Near the route, at the departure end.
as issued
WSUS33 KKCI 120255 MKCW WST 120255 CONVECTIVE SIGMET 11W VALID UNTIL 0455Z CO NM FROM 20WNW PUB-10ENE CIM-50WNW ABQ-30NNE DVC-20WNW PUB AREA TS MOV FROM 22040KT. TOPS TO FL340.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 69 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 109 nm of the route.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Near the route, 79 nm along the route.
- 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 99 to 188 nm out.
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 COS.
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 02:00–09:00 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 5 forecast points nearest it (PUB, AMA, LBB, ABI, SAT). 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 | 200° at 32 kt | +18 kt | 17 °C | 102 kt | 6 h 06 min | 4:44 am CDT (09:44 UTC) |
| 7,500 ft | 210° at 26 kt | +10 kt | 15 °C | 110 kt | 5 h 40 min | 4:18 am CDT (09:18 UTC) |
| 9,500 ft | 220° at 23 kt | +5 kt | 13 °C | 115 kt | 5 h 25 min | 4:03 am CDT (09:03 UTC) |
| 11,500 ft | 230° at 23 kt | +2 kt | 9 °C | 118 kt | 5 h 17 min | 3:55 am CDT (08:55 UTC) |
| 13,500 ft | 230° at 24 kt | +2 kt | 4 °C | 118 kt | 5 h 17 min | 3:55 am CDT (08:55 UTC) |
| 15,500 ft | 230° at 25 kt | +3 kt | 0 °C | 117 kt | 5 h 19 min | 3:57 am CDT (08:57 UTC) |
| 17,500 ft | 230° at 26 kt | +4 kt | -5 °C | 116 kt | 5 h 22 min | 4:00 am CDT (09:00 UTC) |
| 18,000 ft FL180 | 230° at 26 kt | +5 kt | -6 °C | 115 kt | 5 h 25 min | 4:03 am CDT (09:03 UTC) |
| 24,000 ft FL240 | 240° at 33 kt | −1 kt | -17 °C | 121 kt | 5 h 09 min | 3:47 am CDT (08:47 UTC) |
| 30,000 ft FL300 | 240° at 51 kt | −7 kt | -28 °C | 127 kt | 4 h 54 min | 3:32 am CDT (08:32 UTC) |
| 34,000 ft FL340 | 250° at 47 kt | −12 kt | -37 °C | 132 kt | 4 h 43 min | 3:21 am CDT (08:21 UTC) |
| 39,000 ft FL390 | 260° at 41 kt | −20 kt | -49 °C | 140 kt | 4 h 27 min | 3:05 am CDT (08:05 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PUB | used from 0 nm out; 12 nm from the line | 230/25 13° | 230/32 6° | 220/44 -8° | 230/49 -21° | 240/70 -28° | 240/67 -34° | 240/58 -46° | ||
| AMA | used from 148 nm out; 86 nm from the line | 210/38 | 230/29 14° | 240/29 7° | 220/27 -5° | 240/37 -18° | 240/66 -28° | 250/59 -37° | 260/47 -49° | |
| LBB | used from 346 nm out; 74 nm from the line | 200/36 18° | 220/19 15° | 240/20 8° | 230/24 -4° | 240/37 -16° | 250/57 -28° | 250/51 -38° | 270/47 -50° | |
| ABI | used from 395 nm out; 38 nm from the line | 200/31 17° | 210/21 15° | 240/15 9° | 250/14 -4° | 250/24 -14° | 250/36 -28° | 270/35 -38° | 290/41 -50° | |
| SAT | used from 544 nm out; 87 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° |
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 |
|---|---|---|---|---|---|---|---|
| COS Colorado Springs, CO | departure | no report just now | 6,187 ft | ||||
| PUB Pueblo, CO | 30 nm out, 11 nm southwest of the line, tower | no report just now | 4,729 ft | ||||
| LHX La Junta, CO | 69 nm out, 19 nm northeast of the line | no report just now | 4,228 ft | ||||
| CAO Clayton, NM | 158 nm out, 22 nm southwest of the line | no report just now | 4,969 ft | ||||
| DUX Dumas, TX | 217 nm out, 3 nm east of the line | no report just now | 3,706 ft | ||||
| AMA Amarillo, TX | 257 nm out, 6 nm southwest of the line, tower | no report just now | 3,606 ft | ||||
| ABI Abilene, TX | 455 nm out, 15 nm southwest of the line, tower | no report just now | 1,790 ft | ||||
| BWD Brownwood, TX | 504 nm out, 5 nm southwest of the line | no report just now | 1,386 ft | ||||
| GTU Georgetown, TX | 593 nm out, 16 nm east of the line, tower | no report just now | 789 ft | ||||
| AUS Austin, TX | destination | no report just now | 541 ft |
The highest airport on this list sits at 6,187 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At AUS when you get there the forecast at the estimated arrival, 3:05 am CDT (08:05 UTC)
AUS has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 15 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV
- 6/5849 Austin, TX, Friday, October 2, 2026 through Monday, October 12, 2026 UTC 3 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZHU
Daylight
Sunset at COS 6:25 pm MDT (00:25 UTC), at AUS 7:03 pm CDT (00:03 UTC) (civil twilight ends 7:27 pm CDT (00:27 UTC)). At 120 knots the arrival at AUS is before sunrise there (7:30 am CDT (12:30 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: City Of Colorado Springs Municipal, Austin-Bergstrom International.