Jacksonville International to Harrisburg International JAX → MDT
630 nautical miles (725 statute miles) north on a straight line, true course 021°, about 027° magnetic at the departure end (variation 6W). At 120 knots that is 5 h 18 min at the quickest height in today's winds (30,000 ft, a 1-knot headwind), arriving about 9:57 am EDT (13:57 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: 147 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 3W: moderate turbulence above 18,000 ft (due to mountain wave) from 30,000 ft to 41,000 ft. Over the route from 20 to 226 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 325 to 601 nm out.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist, fog). Over the last 167 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the destination end.
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 08:00–15:00 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 7 forecast points nearest it (JAX, SAV, CHS, FLO, RDU, RIC, PSB). 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 | 330° at 23 kt | +16 kt | 104 kt | 6 h 03 min | 10:42 am EDT (14:42 UTC) | |
| 5,500 ft | 330° at 21 kt | +14 kt | 12 °C | 106 kt | 5 h 57 min | 10:36 am EDT (14:36 UTC) |
| 7,500 ft | 330° at 23 kt | +14 kt | 11 °C | 106 kt | 5 h 57 min | 10:36 am EDT (14:36 UTC) |
| 9,500 ft | 330° at 26 kt | +15 kt | 8 °C | 105 kt | 6 h | 10:39 am EDT (14:39 UTC) |
| 11,500 ft | 320° at 28 kt | +13 kt | 5 °C | 107 kt | 5 h 53 min | 10:32 am EDT (14:32 UTC) |
| 13,500 ft | 320° at 29 kt | +13 kt | 1 °C | 107 kt | 5 h 53 min | 10:32 am EDT (14:32 UTC) |
| 15,500 ft | 320° at 31 kt | +13 kt | -3 °C | 107 kt | 5 h 53 min | 10:32 am EDT (14:32 UTC) |
| 17,500 ft | 320° at 32 kt | +14 kt | -7 °C | 106 kt | 5 h 57 min | 10:36 am EDT (14:36 UTC) |
| 18,000 ft FL180 | 320° at 33 kt | +14 kt | -8 °C | 106 kt | 5 h 57 min | 10:36 am EDT (14:36 UTC) |
| 24,000 ft FL240 | 310° at 31 kt | +9 kt | -20 °C | 111 kt | 5 h 41 min | 10:20 am EDT (14:20 UTC) |
| 30,000 ft FL300 | 290° at 31 kt | +1 kt | -33 °C | 119 kt | 5 h 18 min | 9:57 am EDT (13:57 UTC) |
| 34,000 ft FL340 | 300° at 32 kt | +4 kt | -40 °C | 116 kt | 5 h 26 min | 10:05 am EDT (14:05 UTC) |
| 39,000 ft FL390 | 310° at 34 kt | +9 kt | -48 °C | 111 kt | 5 h 41 min | 10:20 am EDT (14:20 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 | 310/22 | 310/19 16° | 300/22 14° | 290/25 8° | 300/25 -7° | 300/24 -18° | 270/20 -33° | 260/25 -41° | 290/17 -51° |
| SAV | used from 49 nm out; 29 nm from the line | 330/16 | 310/15 14° | 320/23 10° | 310/30 7° | 310/30 -6° | 300/28 -19° | 270/25 -32° | 300/25 -39° | 320/26 -50° |
| CHS | used from 148 nm out; 26 nm from the line | 330/14 | 300/17 14° | 320/21 9° | 310/26 6° | 310/32 -6° | 280/34 -19° | 260/37 -32° | 280/30 -39° | 310/30 -50° |
| FLO | used from 197 nm out; 24 nm from the line | 330/17 | 330/17 12° | 320/21 9° | 310/29 4° | 310/36 -8° | 300/36 -19° | 290/34 -32° | 300/29 -40° | 310/34 -48° |
| RDU | used from 295 nm out; 37 nm from the line | 330/30 | 340/24 12° | 330/26 7° | 320/30 3° | 330/39 -8° | 310/30 -20° | 300/33 -33° | 310/34 -39° | 310/41 -47° |
| RIC | used from 443 nm out; 41 nm from the line | 350/34 | 340/27 12° | 340/36 8° | 330/31 3° | 310/32 -9° | 320/34 -21° | 300/37 -34° | 290/37 -39° | 290/42 -46° |
| PSB | used from 591 nm out; 79 nm from the line | 020/21 12° | 360/28 7° | 360/29 1° | 350/33 -10° | 350/42 -22° | 350/49 -37° | 340/63 -43° | 350/39 -52° |
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 | ||||
| SSI St Simons Island, GA | 39 nm out, 3 nm north of the line | no report just now | 18 ft | ||||
| HXD Hilton Head Island, SC | 118 nm out, 10 nm southeast of the line, tower | no report just now | 19 ft | ||||
| RBW Walterboro, SC | 158 nm out, 4 nm west of the line | no report just now | 100 ft | ||||
| FLO Florence, SC | 246 nm out, 11 nm southeast of the line, tower | no report just now | 146 ft | ||||
| BBP Bennettsville, SC | 266 nm out, 1 nm northeast of the line | no report just now | 146 ft | ||||
| RDU Raleigh/Durham, NC | 354 nm out, 15 nm southeast of the line, tower | no report just now | 435 ft | ||||
| BKT Blackstone, VA | 433 nm out, 24 nm east of the line, tower | no report just now | 437 ft | ||||
| CHO Charlottesville, VA | 482 nm out, 23 nm northwest of the line, tower | no report just now | 640 ft | ||||
| IAD Washington, DC | 551 nm out, 3 nm south of the line, tower | no report just now | 312 ft | ||||
| FDK Frederick, MD | 581 nm out, 9 nm west of the line, tower | no report just now | 308 ft | ||||
| MDT Harrisburg, PA | destination | no report just now | 310 ft |
The highest airport on this list sits at 640 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MDT when you get there the forecast at the estimated arrival, 9:57 am EDT (13:57 UTC)
MDT 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
- 6/8902 MAYPORT, FL, Tuesday, October 13, 2026 through Saturday, October 17, 2026 Local 11 nm from the route, at the departure end · security · starts tomorrow · ZJX
- 6/8713 Maxton, NC, Friday, October 16, 2026 through Sunday, October 18, 2026 UTC 9 nm from the route, 285 nm along the route · air shows/sports · starts Friday 16 October · ZDC
- 4/9383 WASHINGTON, DC., USA 7 nm from the route, 551 nm along the route · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 0 nm from the route, 561 nm along the route · a VIP movement · today · ZDC
Daylight
Sunset at JAX 6:59 pm EDT (22:59 UTC), at MDT 6:32 pm EDT (22:32 UTC) (civil twilight ends 6:59 pm EDT (22:59 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, Harrisburg International.