San Antonio International to Nashville International SAT → BNA
714 nautical miles (821 statute miles) northeast on a straight line, true course 053°, about 049° magnetic at the departure end (variation 4E). At 120 knots that is 5 h 15 min at the quickest height in today's winds (9,500 ft, a 16-knot tailwind), arriving about 12:03 am CDT (05:03 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: 1,887 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 TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the last 50 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 SAT.
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 6 forecast points nearest it (SAT, CLL, SHV, LIT, MEM, BNA). 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 9 kt | −8 kt | 128 kt | 5 h 35 min | 12:23 am CDT (05:23 UTC) | |
| 5,500 ft | 240° at 10 kt | −10 kt | 130 kt | 5 h 30 min | 12:18 am CDT (05:18 UTC) | |
| 7,500 ft | 250° at 13 kt | −14 kt | 14 °C | 134 kt | 5 h 20 min | 12:08 am CDT (05:08 UTC) |
| 9,500 ft | 250° at 16 kt | −16 kt | 11 °C | 136 kt | 5 h 15 min | 12:03 am CDT (05:03 UTC) |
| 11,500 ft | 270° at 16 kt | −13 kt | 7 °C | 133 kt | 5 h 22 min | 12:10 am CDT (05:10 UTC) |
| 13,500 ft | 280° at 17 kt | −12 kt | 3 °C | 132 kt | 5 h 25 min | 12:13 am CDT (05:13 UTC) |
| 15,500 ft | 290° at 17 kt | −10 kt | 0 °C | 130 kt | 5 h 30 min | 12:18 am CDT (05:18 UTC) |
| 17,500 ft | 300° at 18 kt | −9 kt | -4 °C | 129 kt | 5 h 32 min | 12:20 am CDT (05:20 UTC) |
| 18,000 ft FL180 | 300° at 18 kt | −9 kt | -5 °C | 129 kt | 5 h 32 min | 12:20 am CDT (05:20 UTC) |
| 24,000 ft FL240 | 310° at 20 kt | −7 kt | -16 °C | 127 kt | 5 h 37 min | 12:25 am CDT (05:25 UTC) |
| 30,000 ft FL300 | 310° at 37 kt | −12 kt | -31 °C | 132 kt | 5 h 25 min | 12:13 am CDT (05:13 UTC) |
| 34,000 ft FL340 | 310° at 38 kt | −8 kt | -41 °C | 128 kt | 5 h 35 min | 12:23 am CDT (05:23 UTC) |
| 39,000 ft FL390 | 310° at 35 kt | −8 kt | -51 °C | 128 kt | 5 h 35 min | 12:23 am CDT (05:23 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAT | used from 0 nm out; 25 nm from the line | 130/22 | 140/24 18° | 170/19 13° | 190/13 7° | 240/15 -4° | 220/14 -13° | 270/11 -28° | 280/10 -40° | 310/18 -51° |
| CLL | used from 50 nm out; 53 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° |
| SHV | used from 198 nm out; 73 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° |
| LIT | used from 396 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° |
| MEM | used from 446 nm out; 77 nm from the line | 240/9 | 280/14 17° | 280/20 12° | 290/25 5° | 320/25 -6° | 330/31 -18° | 320/52 -32° | 330/58 -41° | 320/42 -50° |
| BNA | used from 644 nm out; 45 nm from the line | 280/13 | 340/34 16° | 330/38 10° | 330/44 5° | 330/39 -8° | 330/38 -19° | 320/49 -34° | 330/53 -40° | 330/35 -47° |
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 |
|---|---|---|---|---|---|---|---|
| SAT San Antonio, TX | departure | no report just now | 809 ft | ||||
| HYI Austin, TX | 40 nm out, 2 nm south of the line, tower | no report just now | 594 ft | ||||
| CLL College Station, TX | 129 nm out, 14 nm southeast of the line, tower | no report just now | 320 ft | ||||
| DKR Crockett, TX | 188 nm out, 8 nm southeast of the line | no report just now | 348 ft | ||||
| OCH Nacogdoches, TX | 228 nm out, 14 nm southeast of the line | no report just now | 343 ft | ||||
| SHV Shreveport, LA | 297 nm out, 4 nm northwest of the line, tower | no report just now | 257 ft | ||||
| LLQ Monticello, AR | 426 nm out, 6 nm west of the line | no report just now | 267 ft | ||||
| GLH Greenville, MS | 446 nm out, 24 nm southeast of the line, tower | no report just now | 130 ft | ||||
| OLV Olive Branch, MS | 545 nm out, 20 nm northwest of the line, tower | no report just now | 401 ft | ||||
| SZY Selmer, TN | 605 nm out, 5 nm east of the line | no report just now | 610 ft | ||||
| GHM Centerville, TN | 674 nm out, 4 nm northwest of the line | no report just now | 765 ft | ||||
| BNA Nashville, TN | destination | no report just now | 599 ft |
The highest airport on this list sits at 809 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BNA when you get there the forecast at the estimated arrival, 12:03 am CDT (05:03 UTC)
BNA 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 13 nm from the route, 59 nm along the route · drones kept away from a public gathering · until 12 October · ZHU
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 13 nm from the route, at the destination end · security · until 1 August · ZME
Daylight
Sunset at SAT 7:06 pm CDT (00:06 UTC), at BNA 6:16 pm CDT (23:16 UTC) (civil twilight ends 6:42 pm CDT (23:42 UTC)). At 120 knots the arrival at BNA is before sunrise there (6:50 am CDT (11:50 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 Antonio International, Nashville International.