John F Kennedy International to Long Island Mac Arthur Airport JFK → ISP
32 nautical miles (37 statute miles) east on a straight line, true course 073°, about 086° magnetic at the departure end (variation 13W). At 120 knots that is 9 min at the quickest height in today's winds (34,000 ft, a 94-knot tailwind), arriving about 3:14 am EDT (07:14 UTC), after sunset at the destination. Right now JFK is marginal VFR, wind from the north-northeast (030°) at 14 knots; ISP is IFR, wind from the north (010°) at 12 knots, gusting to 17. 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: 8 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 whole route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the whole 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 JFK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A334 at 18,000 ft, 30 nm north, 12:06 am EDT (04:06 UTC): moderate rime icing from 18,000 ft to 22,000 ft, -18 °C. At the destination end, 30 nm north of the line.
as filed, and in English
HVN UA /OV MAD270010/TM 0406/FL180/TP A334/TA M18/IC MOD RIME 180-220
- Report
- a routine report filed through HVN
- Where
- 10 nm west (270°) of MAD
- Time
- 04:06 UTC
- Height
- at 18,000 ft
- Aircraft
- A334
- Temperature
- −18 °C
- Icing
- moderate rime from 18,000 ft to 22,000 ft
- B763 at 800 ft, 1 nm southeast, 1:51 am EDT (05:51 UTC): a broken layer, remarks: bases at at 80,000 ft and tops 1500. At the departure end, 1 nm southeast of the line.
as filed, and in English
JFK UA /OV JFK 2 MILES SOUTHEAST/TM 0551/FL008/TP B763/SK BKN/RM BASES AT 800 AND TOPS 1500
- Report
- a routine report filed through JFK
- Where
- jfk 2 miles southeast
- Time
- 05:51 UTC
- Height
- at 800 ft
- Aircraft
- B763
- Sky
- a broken layer
- Remarks
- bases at at 80,000 ft and tops 1500
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 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 1 forecast point nearest it (JFK). 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 | 250° at 19 kt | −19 kt | 139 kt | 14 min | 3:19 am EDT (07:19 UTC) | |
| 5,500 ft | 250° at 22 kt | −22 kt | 142 kt | 14 min | 3:19 am EDT (07:19 UTC) | |
| 7,500 ft | 240° at 28 kt | −28 kt | 12 °C | 148 kt | 13 min | 3:18 am EDT (07:18 UTC) |
| 9,500 ft | 240° at 33 kt | −32 kt | 8 °C | 152 kt | 13 min | 3:18 am EDT (07:18 UTC) |
| 11,500 ft | 240° at 33 kt | −32 kt | 5 °C | 152 kt | 13 min | 3:18 am EDT (07:18 UTC) |
| 13,500 ft | 240° at 34 kt | −33 kt | 0 °C | 153 kt | 13 min | 3:18 am EDT (07:18 UTC) |
| 15,500 ft | 240° at 36 kt | −35 kt | -4 °C | 155 kt | 12 min | 3:17 am EDT (07:17 UTC) |
| 17,500 ft | 240° at 38 kt | −37 kt | -9 °C | 157 kt | 12 min | 3:17 am EDT (07:17 UTC) |
| 18,000 ft FL180 | 240° at 38 kt | −37 kt | -10 °C | 157 kt | 12 min | 3:17 am EDT (07:17 UTC) |
| 24,000 ft FL240 | 240° at 45 kt | −44 kt | -21 °C | 164 kt | 12 min | 3:17 am EDT (07:17 UTC) |
| 30,000 ft FL300 | 230° at 86 kt | −79 kt | -32 °C | 199 kt | 10 min | 3:15 am EDT (07:15 UTC) |
| 34,000 ft FL340 | 230° at 102 kt | −94 kt | -40 °C | 214 kt | 9 min | 3:14 am EDT (07:14 UTC) |
| 39,000 ft FL390 | 230° at 84 kt | −77 kt | -51 °C | 197 kt | 10 min | 3:15 am EDT (07:15 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JFK | used from 0 nm out; 16 nm from the line | 250/18 | 250/23 14° | 240/33 9° | 240/33 4° | 240/38 -10° | 240/45 -21° | 230/86 -32° | 230/102 -40° | 230/84 -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 |
|---|---|---|---|---|---|---|---|
| JFK New York, NY | departure | marginal VFR Sky: a broken layer at 1,000 feet, overcast at 2,100 feet | from the north-northeast (030°) at 14 knots | 10+ mi | 1,000 ft | 13 ft | 2:51 am EDT (06:51 UTC) |
| FRG Farmingdale, NY | 16 nm out, 1 nm northeast of the line, tower | IFR Sky: overcast at 900 feet | from the north-northeast (030°) at 11 knots | 10+ mi | 900 ft | 81 ft | 06:53 UTC |
| ISP New York, NY | destination | IFR Sky: overcast at 700 feet | from the north (010°) at 12 knots, gusting to 17 | 10+ mi | 700 ft | 98 ft | 2:56 am EDT (06:56 UTC) |
The highest airport on this list sits at 98 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ISP when you get there the forecast at the estimated arrival, 3:14 am EDT (07:14 UTC)
Wind from the north-northeast at 15 knots, visibility 6 miles, mist, showers nearby, scattered clouds at 400 feet, overcast at 800 feet IFR
The whole forecast for ISP
- From Mon 2:00 am EDT (06:00 UTC): wind from the north-northeast at 15 knots, visibility 6 miles, mist, showers nearby, scattered clouds at 400 feet, overcast at 800 feet
- At times between Mon 2:00 am EDT (06:00 UTC) and 3:00 am EDT (07:00 UTC): a broken layer at 400 feet
- From Mon 8:00 am EDT (12:00 UTC): wind from the north at 12 knots, visibility more than 6 miles, a broken layer at 800 feet, overcast at 1,500 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 8 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet
- From Mon 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet
The forecast for JFK, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the north-northeast at 13 knots, visibility more than 6 miles, showers nearby, overcast at 800 feet
- From Mon 8:00 am EDT (12:00 UTC): wind from the north at 12 knots, visibility more than 6 miles, a broken layer at 800 feet, overcast at 1,500 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 10 knots, visibility more than 6 miles, a few clouds at 2,500 feet, scattered clouds at 5,000 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 9 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northwest at 4 knots, visibility more than 6 miles, a few clouds at 5,000 feet, a few clouds at 15,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 5/2811 NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local 11 nm from the route, at the departure end · security · until 20 October · ZNY
Daylight
Sunset at JFK 6:19 pm EDT (22:19 UTC), at ISP 6:17 pm EDT (22:17 UTC) (civil twilight ends 6:44 pm EDT (22:44 UTC)). At 120 knots the arrival at ISP is before sunrise there (7:00 am EDT (11:00 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: John F Kennedy International, Long Island Mac Arthur Airport.