Jacksonville International to St. Louis Lambert International JAX → STL
655 nautical miles (754 statute miles) northwest on a straight line, true course 322°, about 328° magnetic at the departure end (variation 6W). At 120 knots that is 6 h 25 min at the quickest height in today's winds (4,500 ft, a 18-knot headwind), arriving about 3:04 am CDT (08:04 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: 1,016 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 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, 238 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 JAX.
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 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 7 forecast points nearest it (JAX, CSG, ATL, HSV, BNA, CGI, 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 |
|---|---|---|---|---|---|---|
| 4,500 ft | 310° at 19 kt | +18 kt | 102 kt | 6 h 25 min | 3:04 am CDT (08:04 UTC) | |
| 6,500 ft | 320° at 26 kt | +26 kt | 15 °C | 94 kt | 6 h 58 min | 3:37 am CDT (08:37 UTC) |
| 8,500 ft | 310° at 28 kt | +28 kt | 12 °C | 92 kt | 7 h 07 min | 3:46 am CDT (08:46 UTC) |
| 10,500 ft | 310° at 30 kt | +30 kt | 9 °C | 90 kt | 7 h 17 min | 3:56 am CDT (08:56 UTC) |
| 12,500 ft | 310° at 32 kt | +31 kt | 5 °C | 89 kt | 7 h 22 min | 4:01 am CDT (09:01 UTC) |
| 14,500 ft | 310° at 30 kt | +30 kt | 1 °C | 90 kt | 7 h 17 min | 3:56 am CDT (08:56 UTC) |
| 16,500 ft | 300° at 29 kt | +28 kt | -4 °C | 92 kt | 7 h 07 min | 3:46 am CDT (08:46 UTC) |
| 18,000 ft FL180 | 300° at 28 kt | +27 kt | -7 °C | 93 kt | 7 h 03 min | 3:42 am CDT (08:42 UTC) |
| 24,000 ft FL240 | 300° at 27 kt | +25 kt | -18 °C | 95 kt | 6 h 54 min | 3:33 am CDT (08:33 UTC) |
| 30,000 ft FL300 | 300° at 34 kt | +31 kt | -33 °C | 89 kt | 7 h 22 min | 4:01 am CDT (09:01 UTC) |
| 34,000 ft FL340 | 300° at 34 kt | +32 kt | -41 °C | 88 kt | 7 h 27 min | 4:06 am CDT (09:06 UTC) |
| 39,000 ft FL390 | 290° at 28 kt | +24 kt | -50 °C | 96 kt | 6 h 49 min | 3:28 am CDT (08:28 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JAX | used from 0 nm out; 25 nm from the line | 280/14 | 300/22 16° | 260/27 15° | 260/26 9° | 240/41 -6° | 230/38 -16° | 220/44 -32° | 200/49 -41° | 200/52 -53° |
| CSG | used from 99 nm out; 91 nm from the line | 300/20 | 330/41 15° | 320/42 11° | 320/41 7° | 300/33 -6° | 290/33 -18° | 270/32 -34° | 260/31 -41° | 260/24 -51° |
| ATL | used from 198 nm out; 16 nm from the line | 300/23 | 320/26 14° | 320/34 10° | 320/41 5° | 290/32 -6° | 290/31 -18° | 280/28 -33° | 260/32 -41° | 250/28 -50° |
| HSV | used from 298 nm out; 51 nm from the line | 290/15 | 330/34 16° | 330/38 11° | 330/40 5° | 320/36 -7° | 320/31 -18° | 320/44 -34° | 330/53 -41° | 330/34 -48° |
| BNA | used from 397 nm out; 24 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° |
| CGI | used from 496 nm out; 54 nm from the line | 250/10 | 290/12 17° | 290/18 11° | 300/22 5° | 320/25 -8° | 330/30 -18° | 320/53 -33° | 320/66 -42° | 320/56 -50° |
| STL | used from 595 nm out; 35 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 |
|---|---|---|---|---|---|---|---|
| JAX Jacksonville, FL | departure | no report just now | 29 ft | ||||
| AYS Waycross, GA | 60 nm out, 1 nm southeast of the line | no report just now | 141 ft | ||||
| EZM Eastman, GA | 129 nm out, 8 nm northeast of the line, tower | no report just now | 303 ft | ||||
| MCN Macon, GA | 169 nm out, 6 nm east of the line, tower | no report just now | 354 ft | ||||
| ATL Atlanta, GA | 238 nm out, 12 nm east of the line, tower | no report just now | 1,026 ft | ||||
| PUJ Atlanta, GA | 268 nm out, 5 nm southeast of the line | no report just now | 1,289 ft | ||||
| BGF Winchester, TN | 357 nm out, 9 nm northeast of the line | no report just now | 978 ft | ||||
| JWN Nashville, TN | 427 nm out, 19 nm northeast of the line, tower | no report just now | 501 ft | ||||
| CEY Murray, KY | 496 nm out, 16 nm southwest of the line | no report just now | 577 ft | ||||
| MDH Carbondale/Murphysboro, IL | 575 nm out, 2 nm west of the line, tower | no report just now | 411 ft | ||||
| BLV Belleville, IL | 625 nm out, 11 nm northeast of the line, tower | no report just now | 459 ft | ||||
| STL St Louis, MO | destination | no report just now | 617 ft |
The highest airport on this list sits at 1,289 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At STL when you get there the forecast at the estimated arrival, 3:04 am CDT (08:04 UTC)
STL has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8389 Jacksonville, FL, Thursday, October 15, 2026 through Sunday, October 18, 2026 UTC 11 nm from the route, at the departure end · air shows/sports · starts Thursday 15 October · ZJX
- 6/6783 Perry, GA, Friday, October 9, 2026 through Monday, October 19, 2026 UTC 7 nm from the route, 159 nm along the route · drones kept away from a public gathering · until 19 October · ZTL
- 6/8693 Atlanta, GA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 15 nm from the route, 238 nm along the route · drones kept away from a public gathering · until 12 October · ZTL
Daylight
Sunset at JAX 6:59 pm EDT (22:59 UTC), at STL 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:54 pm CDT (23:54 UTC)). At 120 knots the arrival at STL is before sunrise there (7:07 am CDT (12:07 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: Jacksonville International, St. Louis Lambert International.