Nashville International to Luis Munoz Marin International BNA → SJU
1,525 nautical miles (1,754 statute miles) southeast on a straight line, true course 129°, about 132° magnetic at the departure end (variation 3W). At 120 knots that is 11 h 38 min at the quickest height in today's winds (24,000 ft, a 11-knot tailwind), arriving about 10:21 am AST (14:21 UTC). 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: 103 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 8E: thunderstorms (a convective SIGMET) up to 45,000 ft, moving from the southwest at 20 knots, until 10:55 pm CDT (03:55 UTC). Over the route from 558 to 618 nm out.
as issued
WSUS31 KKCI 120155 MKCE WST 120155 CONVECTIVE SIGMET 8E VALID UNTIL 0355Z FL AND NC FL SC GA CSTL WTRS FROM 130SSE ILM-180SE ILM-60ENE PBI-20SSE TRV-130SSE ILM AREA TS MOV FROM 23020KT. TOPS ABV FL450.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, at the departure end.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 100 to 199 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 8,000 ft. Near the route, 149 nm along 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 BNA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B739 at 34,000 ft, 50 nm north, 8:51 pm CDT (01:51 UTC): light to moderate chop turbulence, remarks: zme. At the departure end, 50 nm north of the line.
as filed, and in English
BWG UA /OV BWG270010/TM 0151/FL340/TP B739/TB CONS LGT OCNL MOD CHOP/RM ZME
- Report
- a routine report filed through BWG
- Where
- 10 nm west (270°) of BWG
- Time
- 01:51 UTC
- Height
- at 34,000 ft
- Aircraft
- B739
- Turbulence
- continuous light occasional moderate chop
- Remarks
- zme
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 8 forecast points nearest it (BNA, TYS, ATL, CAE, SAV, JAX, MLB, MIA). 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 | 280° at 5 kt | −4 kt | 124 kt | 12 h 18 min | 11:01 am AST (15:01 UTC) | |
| 5,500 ft | 300° at 6 kt | −5 kt | 125 kt | 12 h 12 min | 10:55 am AST (14:55 UTC) | |
| 7,500 ft | 300° at 7 kt | −7 kt | 14 °C | 127 kt | 12 h | 10:43 am AST (14:43 UTC) |
| 9,500 ft | 300° at 9 kt | −8 kt | 11 °C | 128 kt | 11 h 55 min | 10:38 am AST (14:38 UTC) |
| 11,500 ft | 290° at 10 kt | −9 kt | 9 °C | 129 kt | 11 h 49 min | 10:32 am AST (14:32 UTC) |
| 13,500 ft | 280° at 11 kt | −10 kt | 5 °C | 130 kt | 11 h 44 min | 10:27 am AST (14:27 UTC) |
| 15,500 ft | 270° at 13 kt | −10 kt | 0 °C | 130 kt | 11 h 44 min | 10:27 am AST (14:27 UTC) |
| 17,500 ft | 270° at 15 kt | −10 kt | -4 °C | 130 kt | 11 h 44 min | 10:27 am AST (14:27 UTC) |
| 18,000 ft FL180 | 270° at 16 kt | −10 kt | -5 °C | 130 kt | 11 h 44 min | 10:27 am AST (14:27 UTC) |
| 24,000 ft FL240 | 260° at 17 kt | −11 kt | -17 °C | 131 kt | 11 h 38 min | 10:21 am AST (14:21 UTC) |
| 30,000 ft FL300 | 250° at 13 kt | −5 kt | -32 °C | 125 kt | 12 h 12 min | 10:55 am AST (14:55 UTC) |
| 34,000 ft FL340 | 210° at 19 kt | +4 kt | -41 °C | 116 kt | 13 h 09 min | 11:52 am AST (15:52 UTC) |
| 39,000 ft FL390 | 210° at 24 kt | +4 kt | -51 °C | 116 kt | 13 h 09 min | 11:52 am AST (15:52 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BNA | used from 0 nm out; 25 nm from the line | 310/20 | 340/20 17° | 330/24 10° | 340/22 5° | 330/26 -6° | 340/29 -18° | 330/52 -33° | 320/62 -41° | 340/45 -50° |
| TYS | used from 100 nm out; 69 nm from the line | 320/20 | 340/18 11° | 340/32 9° | 340/36 4° | 330/37 -7° | 330/38 -19° | 330/50 -34° | 330/53 -38° | 330/44 -48° |
| ATL | used from 149 nm out; 46 nm from the line | 320/30 | 330/37 16° | 340/44 11° | 330/35 7° | 310/33 -6° | 300/38 -18° | 330/58 -33° | 330/48 -40° | 320/34 -49° |
| CAE | used from 249 nm out; 79 nm from the line | 330/15 | 330/13 12° | 330/22 9° | 300/26 6° | 280/33 -7° | 270/38 -18° | 250/45 -33° | 240/46 -40° | 270/38 -49° |
| SAV | used from 299 nm out; 40 nm from the line | 280/23 | 300/22 14° | 290/27 11° | 270/31 6° | 260/36 -5° | 260/38 -17° | 240/49 -32° | 230/68 -40° | 230/59 -51° |
| JAX | used from 498 nm out; 150 nm from the line | 290/14 | 300/16 17° | 280/22 14° | 280/24 8° | 250/32 -6° | 250/37 -17° | 230/50 -31° | 220/52 -41° | 220/51 -52° |
| MLB | used from 548 nm out; 170 nm from the line | 230/6 | 230/12 17° | 240/13 12° | 240/14 7° | 240/20 -5° | 240/24 -16° | 210/21 -32° | 190/33 -41° | 200/36 -52° |
| MIA | used from 797 nm out; 308 nm from the line | 150/7 | 140/5 17° | 160/5 14° | L/V 9° | 230/8 -5° | 230/8 -17° | 150/11 -32° | 150/25 -41° | 180/29 -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 |
|---|---|---|---|---|---|---|---|
| BNA Nashville, TN | departure | no report just now | 599 ft | ||||
| CHA Chattanooga, TN | 100 nm out, 6 nm southwest of the line, tower | no report just now | 682 ft | ||||
| AHN Athens, GA | 209 nm out, 5 nm northeast of the line, tower | no report just now | 812 ft | ||||
| SAV Savannah, GA | 359 nm out, 9 nm south of the line, tower | no report just now | 50 ft | ||||
| SJU San Juan, PR | destination | no report just now | 9 ft |
The highest airport on this list sits at 812 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SJU when you get there the forecast at the estimated arrival, 10:21 am AST (14:21 UTC)
SJU has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 13 nm from the route, at the departure end · security · until 1 August · ZME
- 6/4508 CEIBA, PR 24 nm from the route, at the destination end · security · ZSU
Daylight
Sunset at BNA 6:15 pm CDT (23:15 UTC), at SJU 6:03 pm AST (22:03 UTC) (civil twilight ends 6:25 pm AST (22:25 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: Nashville International, Luis Munoz Marin International.