Louisville Muhammad Ali International to St. Pete-Clearwater International SDF → PIE
635 nautical miles (731 statute miles) south on a straight line, true course 165°, about 170° magnetic at the departure end (variation 5W). At 120 knots that is 4 h 21 min at the quickest height in today's winds (11,500 ft, a 26-knot tailwind), arriving about 12:38 am EDT (04:38 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: 218 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 route from 60 to 208 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 119 to 278 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 7,000 ft. Near the route, 228 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 SDF.
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 (LOU, TYS, ATL, CSG, TLH, PIE). 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 | 310° at 18 kt | −14 kt | 134 kt | 4 h 44 min | 1:01 am EDT (05:01 UTC) | |
| 5,500 ft | 320° at 23 kt | −21 kt | 141 kt | 4 h 30 min | 12:47 am EDT (04:47 UTC) | |
| 7,500 ft | 320° at 26 kt | −24 kt | 13 °C | 144 kt | 4 h 25 min | 12:42 am EDT (04:42 UTC) |
| 9,500 ft | 320° at 27 kt | −25 kt | 10 °C | 145 kt | 4 h 23 min | 12:40 am EDT (04:40 UTC) |
| 11,500 ft | 320° at 29 kt | −26 kt | 7 °C | 146 kt | 4 h 21 min | 12:38 am EDT (04:38 UTC) |
| 13,500 ft | 310° at 29 kt | −24 kt | 3 °C | 144 kt | 4 h 25 min | 12:42 am EDT (04:42 UTC) |
| 15,500 ft | 310° at 28 kt | −22 kt | -2 °C | 142 kt | 4 h 28 min | 12:45 am EDT (04:45 UTC) |
| 17,500 ft | 300° at 27 kt | −19 kt | -6 °C | 139 kt | 4 h 34 min | 12:51 am EDT (04:51 UTC) |
| 18,000 ft FL180 | 300° at 26 kt | −18 kt | -7 °C | 138 kt | 4 h 36 min | 12:53 am EDT (04:53 UTC) |
| 24,000 ft FL240 | 280° at 28 kt | −14 kt | -18 °C | 134 kt | 4 h 44 min | 1:01 am EDT (05:01 UTC) |
| 30,000 ft FL300 | 270° at 28 kt | −6 kt | -33 °C | 126 kt | 5 h 02 min | 1:19 am EDT (05:19 UTC) |
| 34,000 ft FL340 | 250° at 30 kt | +2 kt | -40 °C | 118 kt | 5 h 23 min | 1:40 am EDT (05:40 UTC) |
| 39,000 ft FL390 | 250° at 25 kt | +5 kt | -50 °C | 115 kt | 5 h 31 min | 1:48 am EDT (05:48 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LOU | used from 0 nm out; 27 nm from the line | 320/15 | 340/24 14° | 330/28 9° | 340/34 4° | 340/37 -9° | 340/42 -20° | 320/39 -35° | 320/45 -39° | 330/40 -47° |
| TYS | used from 99 nm out; 57 nm from the line | 290/19 | 310/22 11° | 330/25 7° | 330/34 3° | 320/37 -7° | 300/37 -18° | 300/37 -34° | 280/29 -39° | 270/29 -48° |
| ATL | used from 198 nm out; 57 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° |
| CSG | used from 347 nm out; 58 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° |
| TLH | used from 397 nm out; 69 nm from the line | 300/17 | 340/32 17° | 320/27 13° | 300/27 8° | 280/23 -7° | 250/37 -17° | 230/44 -33° | 220/53 -41° | 220/48 -51° |
| PIE | used from 546 nm out; 65 nm from the line | 310/7 | 270/12 17° | 270/14 13° | 260/14 8° | 240/22 -5° | 230/24 -16° | 220/26 -31° | 200/31 -41° | 180/33 -53° |
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 |
|---|---|---|---|---|---|---|---|
| SDF Louisville, KY | departure | no report just now | 500 ft | ||||
| BRY Bardstown, KY | 20 nm out, 7 nm east of the line | no report just now | 669 ft | ||||
| TZV Tompkinsville, KY | 89 nm out, 19 nm west of the line | no report just now | 1,036 ft | ||||
| CHA Chattanooga, TN | 189 nm out, 23 nm west of the line, tower | no report just now | 682 ft | ||||
| CNI Canton, GA | 238 nm out, 4 nm east of the line | no report just now | 1,219 ft | ||||
| PDK Atlanta, GA | 268 nm out, 3 nm northeast of the line, tower | no report just now | 998 ft | ||||
| MCN Macon, GA | 347 nm out, 18 nm northeast of the line, tower | no report just now | 354 ft | ||||
| CKF Cordele, GA | 387 nm out, 4 nm north of the line | no report just now | 309 ft | ||||
| VLD Valdosta, GA | 456 nm out, 10 nm east of the line, tower | no report just now | 203 ft | ||||
| CDK Cedar Key, FL | 556 nm out, 4 nm south of the line | no report just now | 11 ft | ||||
| BKV Brooksville, FL | 605 nm out, 20 nm east of the line, tower | no report just now | 76 ft | ||||
| PIE St Petersburg-Clearwater, FL | destination | no report just now | 10 ft |
The highest airport on this list sits at 1,219 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PIE when you get there the forecast at the estimated arrival, 12:38 am EDT (04:38 UTC)
PIE has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8693 Atlanta, GA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 5 nm from the route, 278 nm along the route · drones kept away from a public gathering · until 12 October · ZTL
- 6/6783 Perry, GA, Friday, October 9, 2026 through Monday, October 19, 2026 UTC 9 nm from the route, 357 nm along the route · drones kept away from a public gathering · until 19 October · ZTL
- 6/8792 Lake City, FL, Sunday, October 11, 2026 through Sunday, October 11, 2026 Local on the route, 476 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · ended 11 October · ZJX
Daylight
Sunset at SDF 7:09 pm EDT (23:09 UTC), at PIE 7:04 pm EDT (23:04 UTC) (civil twilight ends 7:28 pm EDT (23:28 UTC)). At 120 knots the arrival at PIE is before sunrise there (7:29 am EDT (11:29 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: Louisville Muhammad Ali International, St. Pete-Clearwater International.