Capital City Airport to The Florida Keys Marathon International CXY → MTH
954 nautical miles (1,098 statute miles) south on a straight line, true course 194°, about 205° magnetic at the departure end (variation 11W). At 120 knots that is 8 h 01 min at the quickest height in today's winds (6,500 ft, a 1-knot headwind), arriving about 6:36 am EDT (10:36 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: 2 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 6E: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 11:55 pm EDT (03:55 UTC). Over the first 30 nm of the route.
as issued
WSUS31 KKCI 120155 MKCE WST 120155 CONVECTIVE SIGMET 6E VALID UNTIL 0355Z NY NJ PA DE MD AND DE NJ NY MD CSTL WTRS FROM 20WNW SAX-70S HTO-50ESE SBY-30WSW HAR-20WNW SAX AREA EMBD TS MOV FROM 22020KT. TOPS TO FL300.
- SIGMET 7E: thunderstorms (a convective SIGMET) up to 33,000 ft, moving from the west at 15 knots, until 11:55 pm EDT (03:55 UTC). Over the route from 60 to 159 nm out.
as issued
WSUS31 KKCI 120155 MKCE WST 120155 CONVECTIVE SIGMET 7E VALID UNTIL 0355Z PA MD VA DC WV OH FROM 10NNE JST-30WNW SBY-40ENE RIC-50SW BKW-20SE APE-10NNE JST AREA TS MOV FROM 28015KT. TOPS TO FL330.
- SIGMET 8E: thunderstorms (a convective SIGMET) up to 45,000 ft, moving from the southwest at 20 knots, until 11:55 pm EDT (03:55 UTC). Near the route, 795 nm along the route.
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). Over the first 179 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 119 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the departure 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 CXY.
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 02:00–09:00 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 11 forecast points nearest it (PSB, RIC, RDU, ILM, FLO, CHS, SAV, JAX, MLB, MIA, EYW). 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 | 280° at 14 kt | +2 kt | 13 °C | 118 kt | 8 h 05 min | 6:40 am EDT (10:40 UTC) |
| 6,500 ft | 280° at 14 kt | +1 kt | 13 °C | 119 kt | 8 h 01 min | 6:36 am EDT (10:36 UTC) |
| 8,500 ft | 280° at 16 kt | +2 kt | 11 °C | 118 kt | 8 h 05 min | 6:40 am EDT (10:40 UTC) |
| 10,500 ft | 270° at 18 kt | +5 kt | 8 °C | 115 kt | 8 h 18 min | 6:53 am EDT (10:53 UTC) |
| 12,500 ft | 260° at 21 kt | +9 kt | 5 °C | 111 kt | 8 h 36 min | 7:11 am EDT (11:11 UTC) |
| 14,500 ft | 250° at 24 kt | +12 kt | 1 °C | 108 kt | 8 h 50 min | 7:25 am EDT (11:25 UTC) |
| 16,500 ft | 250° at 27 kt | +15 kt | -3 °C | 105 kt | 9 h 05 min | 7:40 am EDT (11:40 UTC) |
| 18,000 ft FL180 | 250° at 30 kt | +18 kt | -6 °C | 102 kt | 9 h 21 min | 7:56 am EDT (11:56 UTC) |
| 24,000 ft FL240 | 240° at 37 kt | +26 kt | -17 °C | 94 kt | 10 h 09 min | 8:44 am EDT (12:44 UTC) |
| 30,000 ft FL300 | 230° at 45 kt | +38 kt | -32 °C | 82 kt | 11 h 38 min | 10:13 am EDT (14:13 UTC) |
| 34,000 ft FL340 | 220° at 54 kt | +49 kt | -40 °C | 71 kt | 13 h 26 min | 12:01 pm EDT (16:01 UTC) |
| 39,000 ft FL390 | 220° at 49 kt | +42 kt | -51 °C | 78 kt | 12 h 14 min | 10:49 am EDT (14:49 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PSB | used from 0 nm out; 82 nm from the line | 360/13 13° | 330/14 7° | 300/11 3° | 290/12 -11° | 240/23 -23° | 270/25 -36° | 250/34 -40° | 250/45 -48° | |
| RIC | used from 50 nm out; 91 nm from the line | 270/23 | 280/19 11° | 270/18 8° | 240/22 4° | 230/39 -7° | 220/55 -18° | 220/75 -30° | 230/83 -39° | 230/64 -50° |
| RDU | used from 199 nm out; 58 nm from the line | 280/33 | 300/23 11° | 300/28 8° | 290/28 4° | 260/41 -6° | 240/52 -18° | 230/66 -31° | 230/76 -39° | 240/52 -49° |
| ILM | used from 298 nm out; 51 nm from the line | 270/22 | 270/23 11° | 260/35 10° | 240/41 6° | 240/49 -5° | 240/61 -16° | 230/74 -30° | 220/79 -40° | 230/71 -51° |
| FLO | used from 397 nm out; 64 nm from the line | 300/16 | 320/14 12° | 320/19 7° | 290/26 5° | 260/39 -6° | 250/45 -18° | 230/62 -32° | 230/83 -40° | 230/64 -51° |
| CHS | used from 447 nm out; 51 nm from the line | 280/21 | 270/23 12° | 280/28 11° | 260/35 6° | 250/41 -5° | 250/45 -16° | 230/59 -32° | 220/74 -40° | 230/67 -52° |
| SAV | used from 546 nm out; 111 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 596 nm out; 103 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 646 nm out; 83 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 795 nm out; 68 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° |
| EYW | used from 944 nm out; 42 nm from the line | 110/11 | 110/10 17° | 110/7 14° | 080/6 9° | L/V -5° | 260/7 -16° | 280/12 -32° | 300/16 -42° | 270/12 -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 |
|---|---|---|---|---|---|---|---|
| CXY Harrisburg, PA | departure | no report just now | 346 ft | ||||
| IAD Washington, DC | 79 nm out, 9 nm west of the line, tower | no report just now | 312 ft | ||||
| HEF Washington, DC | 99 nm out, 10 nm northwest of the line, tower | no report just now | 192 ft | ||||
| BKT Blackstone, VA | 199 nm out, 6 nm northwest of the line, tower | no report just now | 437 ft | ||||
| FAY Fayetteville, NC | 328 nm out, 21 nm west of the line, tower | no report just now | 189 ft | ||||
| CRE North Myrtle Beach, SC | 397 nm out, 4 nm northeast of the line, tower | no report just now | 31 ft | ||||
| MLB Melbourne, FL | 755 nm out, 21 nm northwest of the line, tower | no report just now | 33 ft | ||||
| FPR Fort Pierce, FL | 785 nm out, 2 nm northeast of the line, tower | no report just now | 23 ft | ||||
| TMB Miami, FL | 894 nm out, 21 nm east of the line, tower | no report just now | 10 ft | ||||
| MTH Marathon, FL | destination | no report just now | 7 ft |
The highest airport on this list sits at 437 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MTH when you get there the forecast at the estimated arrival, 6:36 am EDT (10:36 UTC)
MTH has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 23 nm from the route, 50 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 1 nm from the route, 70 nm along the route · a VIP movement · today · ZDC
- 4/9383 WASHINGTON, DC., USA on the route, 79 nm along the route · security · ZDC
- 6/8508 Johnsontown, NC 2 nm from the route, 338 nm along the route · security · ZDC
- 6/8900 Cape Canaveral, FL, Wednesday, October 14, 2026 Local on the route, 705 nm along the route · a rocket launch or re-entry · starts Wednesday 14 October · ZMA
- 6/8901 Cape Canaveral, FL, Thursday, October 15, 2026 Local on the route, 705 nm along the route · a rocket launch or re-entry · starts Thursday 15 October · ZJX
- 6/8896 Cape Canaveral, FL, Tuesday, October 13, 2026 Local on the route, 705 nm along the route · a rocket launch or re-entry · starts tomorrow · ZJX
- 6/8897 Cape Canaveral, FL, Wednesday, October 14, 2026 Local on the route, 705 nm along the route · a rocket launch or re-entry · starts Wednesday 14 October · ZJX
- 6/8898 Cape Canaveral, FL, Thursday, October 15, 2026 Local on the route, 705 nm along the route · a rocket launch or re-entry · starts Thursday 15 October · ZMA
- 6/8899 Cape Canaveral, FL, Tuesday, October 13, 2026 Local on the route, 705 nm along the route · a rocket launch or re-entry · starts tomorrow · ZMA
Daylight
Sunset at CXY 6:32 pm EDT (22:32 UTC), at MTH 7:00 pm EDT (23:00 UTC) (civil twilight ends 7:23 pm EDT (23:23 UTC)). At 120 knots the arrival at MTH is before sunrise there (7:20 am EDT (11:20 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: Capital City Airport, The Florida Keys Marathon International.
