Cyril E King Airport to James M Cox Dayton International STT → DAY
1,634 nautical miles (1,880 statute miles) northwest on a straight line, true course 326°, about 339° magnetic at the departure end (variation 13W). At 120 knots that is 14 h 59 min at the quickest height in today's winds (4,500 ft, a 11-knot headwind), arriving about 7:38 pm EDT (23:38 UTC), after sunset at the destination. Right now STT is VFR, wind from the east (100°) at 8 knots; DAY is low IFR, wind from the west-northwest (300°) at 5 knots. 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 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 1176 to 1255 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 1275 to 1425 nm out.
- AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Near the route, 1355 nm along the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1365 to 1504 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 249 nm of 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 STT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
No pilot reports within 50 nautical miles of the line in the last three hours.
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 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 8 forecast points nearest it (MIA, MLB, ILM, RDU, ROA, CRW, CMH, CVG). 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 11 kt | +11 kt | 109 kt | 14 h 59 min | 7:38 pm EDT (23:38 UTC) | |
| 6,500 ft | 320° at 12 kt | +12 kt | 14 °C | 108 kt | 15 h 08 min | 7:47 pm EDT (23:47 UTC) |
| 8,500 ft | 320° at 12 kt | +12 kt | 11 °C | 108 kt | 15 h 08 min | 7:47 pm EDT (23:47 UTC) |
| 10,500 ft | 310° at 13 kt | +13 kt | 8 °C | 107 kt | 15 h 16 min | 7:55 pm EDT (23:55 UTC) |
| 12,500 ft | 310° at 15 kt | +14 kt | 5 °C | 106 kt | 15 h 25 min | 8:04 pm EDT (00:04 UTC) |
| 14,500 ft | 300° at 17 kt | +15 kt | 0 °C | 105 kt | 15 h 34 min | 8:13 pm EDT (00:13 UTC) |
| 16,500 ft | 300° at 19 kt | +17 kt | -3 °C | 103 kt | 15 h 52 min | 8:31 pm EDT (00:31 UTC) |
| 18,000 ft FL180 | 300° at 21 kt | +18 kt | -7 °C | 102 kt | 16 h 01 min | 8:40 pm EDT (00:40 UTC) |
| 24,000 ft FL240 | 290° at 22 kt | +17 kt | -18 °C | 103 kt | 15 h 52 min | 8:31 pm EDT (00:31 UTC) |
| 30,000 ft FL300 | 290° at 26 kt | +21 kt | -32 °C | 99 kt | 16 h 30 min | 9:09 pm EDT (01:09 UTC) |
| 34,000 ft FL340 | 280° at 31 kt | +24 kt | -41 °C | 96 kt | 17 h 01 min | 9:40 pm EDT (01:40 UTC) |
| 39,000 ft FL390 | 290° at 28 kt | +23 kt | -51 °C | 97 kt | 16 h 51 min | 9:30 pm EDT (01:30 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MIA | used from 0 nm out; 939 nm from the line | L/V | L/V 17° | L/V 13° | L/V 8° | 270/6 -6° | 250/9 -17° | 290/17 -32° | 280/25 -41° | 280/21 -52° |
| MLB | used from 697 nm out; 432 nm from the line | 290/10 | 260/15 18° | 290/12 13° | 280/13 8° | 250/20 -7° | 260/18 -18° | 240/17 -32° | 250/20 -41° | 250/22 -52° |
| ILM | used from 797 nm out; 359 nm from the line | 300/18 | 300/22 13° | 300/21 8° | 290/28 4° | 280/38 -7° | 270/40 -18° | 250/49 -32° | 250/50 -40° | 270/33 -50° |
| RDU | used from 1245 nm out; 35 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° |
| ROA | used from 1345 nm out; 48 nm from the line | 310/32 | 340/32 14° | 350/25 9° | 340/24 3° | 340/42 -8° | 340/52 -20° | 350/62 -34° | 350/64 -39° | 310/44 -48° |
| CRW | used from 1445 nm out; 32 nm from the line | 320/17 | 340/23 12° | 340/32 8° | 340/35 4° | 330/40 -7° | 340/45 -20° | 340/57 -34° | 340/64 -42° | 320/38 -50° |
| CMH | used from 1544 nm out; 56 nm from the line | 320/12 | 340/26 15° | 340/22 9° | 320/24 3° | 320/32 -7° | 320/36 -20° | 330/42 -35° | 320/59 -44° | 320/57 -50° |
| CVG | used from 1594 nm out; 50 nm from the line | 300/19 | 310/23 15° | 320/20 9° | 310/18 3° | 300/26 -6° | 290/36 -19° | 310/32 -34° | 310/53 -43° | 310/61 -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 |
|---|---|---|---|---|---|---|---|
| STT Charlotte Amalie, VI | departure | VFR Sky: a few clouds at 6,500 feet | from the east (100°) at 8 knots | 10+ mi | none | 23 ft | 3:53 am AST (07:53 UTC) |
| FAY Fayetteville, NC | 1245 nm out, 5 nm southwest of the line, tower | VFR Sky: scattered clouds at 900 feet | from the west-southwest (240°) at 9 knots | 10+ mi | none | 189 ft | 08:07 UTC |
| GSO Greensboro, NC | 1325 nm out, 4 nm northwest of the line, tower | VFR Sky: a few clouds at 3,800 feet | from the west-southwest (250°) at 7 knots | 10+ mi | none | 925 ft | 07:54 UTC |
| HTS Huntington, WV | 1514 nm out, 6 nm southwest of the line, tower | marginal VFR Sky: overcast at 1,000 feet | from the northwest (310°) at 5 knots | 10+ mi | 1,000 ft | 828 ft | 07:51 UTC |
| DAY Dayton, OH | destination | low IFR Sky: overcast at 400 feet | from the west-northwest (300°) at 5 knots | 8 mi | 400 ft | 1,009 ft | 3:56 am EDT (07:56 UTC) |
The highest airport on this list sits at 1,009 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DAY when you get there the forecast at the estimated arrival, 7:38 pm EDT (23:38 UTC)
Wind from the south-southwest at 11 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR
The whole forecast for DAY
- From Mon 4:00 am EDT (08:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 400 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the west-southwest at 3 knots, visibility 3 miles, mist, scattered clouds at 200 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 1 mile, mist
- From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 11 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for STT, the departure
- From Mon 2:00 am AST (06:00 UTC): wind from the east at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 5,000 feet
- From Mon 9:00 am AST (13:00 UTC): wind from the east-southeast at 10 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,500 feet
- From Mon 7:00 pm AST (23:00 UTC): wind from the east at 7 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, scattered clouds at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/2698 VIEQUES, PR, Monday, January 19, 2026 through Friday, December 18, 2026 UTC 20 nm from the route, at the departure end · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 18 December · ZSU
- 6/8508 Johnsontown, NC 4 nm from the route, 1225 nm along the route · security · ZDC
Daylight
Sunset at STT 5:59 pm AST (21:59 UTC), at DAY 7:02 pm EDT (23:02 UTC) (civil twilight ends 7:29 pm EDT (23:29 UTC)). At 120 knots the arrival at DAY is after sunset there (7:02 pm EDT (23:02 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: Cyril E King Airport, James M Cox Dayton International.