Indianapolis International to San Antonio International IND → SAT
856 nautical miles (985 statute miles) southwest on a straight line, true course 228°, about 233° magnetic at the departure end (variation 5W). At 120 knots that is 7 h 19 min at the quickest height in today's winds (39,000 ft, a 3-knot headwind), arriving about 5:48 am CDT (10:48 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: 17 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 70 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 IND.
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 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 9 forecast points nearest it (IND, EVV, CGI, MEM, LIT, SHV, DAL, CLL, 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 |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 15 kt | +16 kt | 104 kt | 8 h 14 min | 6:43 am CDT (11:43 UTC) | |
| 6,500 ft | 230° at 14 kt | +14 kt | 16 °C | 106 kt | 8 h 05 min | 6:34 am CDT (11:34 UTC) |
| 8,500 ft | 250° at 14 kt | +14 kt | 13 °C | 106 kt | 8 h 05 min | 6:34 am CDT (11:34 UTC) |
| 10,500 ft | 260° at 13 kt | +11 kt | 9 °C | 109 kt | 7 h 51 min | 6:20 am CDT (11:20 UTC) |
| 12,500 ft | 270° at 12 kt | +9 kt | 6 °C | 111 kt | 7 h 43 min | 6:12 am CDT (11:12 UTC) |
| 14,500 ft | 270° at 13 kt | +9 kt | 2 °C | 111 kt | 7 h 43 min | 6:12 am CDT (11:12 UTC) |
| 16,500 ft | 270° at 14 kt | +10 kt | -2 °C | 110 kt | 7 h 47 min | 6:16 am CDT (11:16 UTC) |
| 18,000 ft FL180 | 270° at 15 kt | +10 kt | -5 °C | 110 kt | 7 h 47 min | 6:16 am CDT (11:16 UTC) |
| 24,000 ft FL240 | 280° at 18 kt | +11 kt | -16 °C | 109 kt | 7 h 51 min | 6:20 am CDT (11:20 UTC) |
| 30,000 ft FL300 | 300° at 31 kt | +9 kt | -31 °C | 111 kt | 7 h 43 min | 6:12 am CDT (11:12 UTC) |
| 34,000 ft FL340 | 300° at 38 kt | +10 kt | -40 °C | 110 kt | 7 h 47 min | 6:16 am CDT (11:16 UTC) |
| 39,000 ft FL390 | 310° at 41 kt | +3 kt | -51 °C | 117 kt | 7 h 19 min | 5:48 am CDT (10:48 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| IND | used from 0 nm out; 25 nm from the line | 290/16 | 310/20 16° | 320/21 10° | 330/13 3° | 300/25 -7° | 320/32 -19° | 330/46 -34° | 320/61 -43° | 320/63 -50° |
| EVV | used from 50 nm out; 50 nm from the line | 280/15 | 290/12 17° | 310/16 10° | 320/13 5° | 310/22 -6° | 320/26 -18° | 320/38 -33° | 310/56 -41° | 320/55 -51° |
| CGI | used from 149 nm out; 41 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° |
| MEM | used from 299 nm out; 85 nm from the line | 230/19 | 260/16 15° | 270/17 12° | 300/13 6° | 300/15 -5° | 300/26 -18° | 300/34 -32° | 300/41 -40° | 310/46 -52° |
| LIT | used from 348 nm out; 44 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° |
| SHV | used from 498 nm out; 73 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 597 nm out; 76 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 697 nm out; 42 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 796 nm out; 35 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 |
|---|---|---|---|---|---|---|---|
| IND Indianapolis, IN | departure | no report just now | 796 ft | ||||
| BMG Bloomington, IN | 30 nm out, 16 nm southeast of the line, tower | no report just now | 845 ft | ||||
| MWA Marion, IL | 169 nm out, 4 nm southwest of the line, tower | no report just now | 471 ft | ||||
| CGI Cape Girardeau, MO | 219 nm out, 7 nm east of the line, tower | no report just now | 341 ft | ||||
| POF Poplar Bluff, MO | 259 nm out, 1 nm west of the line | no report just now | 330 ft | ||||
| LIT Little Rock, AR | 408 nm out, 21 nm southeast of the line, tower | no report just now | 266 ft | ||||
| HOT Hot Springs, AR | 448 nm out, 5 nm southwest of the line | no report just now | 540 ft | ||||
| TXK Texarkana, AR | 528 nm out, 11 nm southeast of the line, tower | no report just now | 389 ft | ||||
| TYR Tyler, TX | 627 nm out, 5 nm east of the line, tower | no report just now | 543 ft | ||||
| LXY Mexia, TX | 697 nm out, 9 nm northwest of the line | no report just now | 544 ft | ||||
| EDC Austin, TX | 786 nm out, 1 nm southeast of the line, tower | no report just now | 620 ft | ||||
| SAT San Antonio, TX | destination | no report just now | 809 ft |
The highest airport on this list sits at 845 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SAT when you get there the forecast at the estimated arrival, 5:48 am CDT (10:48 UTC)
SAT has no terminal forecast; use the nearest airport that does.
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 2 nm from the route, 796 nm along the route · drones kept away from a public gathering · until 12 October · ZHU
Daylight
Sunset at IND 7:10 pm EDT (23:10 UTC), at SAT 7:06 pm CDT (00:06 UTC) (civil twilight ends 7:30 pm CDT (00:30 UTC)). At 120 knots the arrival at SAT is before sunrise there (7:33 am CDT (12:33 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: Indianapolis International, San Antonio International.