John F Kennedy International to Luis Munoz Marin International JFK → SJU
1,392 nautical miles (1,602 statute miles) south on a straight line, true course 161°, about 174° magnetic at the departure end (variation 13W). At 120 knots that is 11 h 54 min at the quickest height in today's winds (3,500 ft, a 3-knot headwind), arriving about 1:13 pm AST (17:13 UTC). Right now JFK is IFR, wind from the north-northeast (020°) at 12 knots, gusting to 21; SJU is VFR, wind from the east-southeast (110°) at 4 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: 7,024 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 E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 2:55 am EDT (06:55 UTC). Over the first 119 nm of the route.
as issued
WSUS31 KKCI 120455 MKCE WST 120455 CONVECTIVE SIGMET 19E VALID UNTIL 0655Z CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.
- SIGMET E17E: thunderstorms (a convective SIGMET) up to 44,000 ft, moving from the southwest at 25 knots, until 2:55 am EDT (06:55 UTC). Near the route, 219 nm along the route.
as issued
WSUS31 KKCI 120455 MKCE WST 120455 CONVECTIVE SIGMET 17E VALID UNTIL 0655Z NC VA CSTL WTRS FROM 160SE SIE-190SE ECG-140SE ILM-70E ORF-160SE SIE AREA TS MOV FROM 24025KT. TOPS TO FL440. REF INTL SIGMET LIMA SERIES.
- 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 189 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 30 nm of the route.
- AIRMET TANGO 1W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 219 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 JFK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A319 at 23,000 ft, 46 nm west, 11:21 pm EDT (03:21 UTC): moderate turbulence. At the departure end, 46 nm west of the line.
as filed, and in English
MJX UA /OV CYN345010/TM 0321/FL230/TP A319/TB MOD
- Report
- a routine report filed through MJX
- Where
- 10 nm north (345°) of CYN
- Time
- 03:21 UTC
- Height
- at 23,000 ft
- Aircraft
- A319
- Turbulence
- moderate
- A321 at 700 ft, 2 nm southwest, 10:46 pm EDT (02:46 UTC): overcast above 700 ft. At the departure end, 2 nm southwest of the line.
as filed, and in English
JFK UA /OV KJFK225002/TM 0246/FL007/TP A321/SK OVC007
- Report
- a routine report filed through JFK
- Where
- 2 nm southwest (225°) of KJFK
- Time
- 02:46 UTC
- Height
- at 700 ft
- Aircraft
- A321
- Sky
- overcast from 700 ft
- A320 descending, 32 nm east, 10:45 pm EDT (02:45 UTC): remarks: final runway 24. At the departure end, 32 nm east of the line.
as filed, and in English
ISP UA /OV ISP/TM 0245/FLDURD/TP A320/SK BCN007/RM FINAL RY24
- Report
- a routine report filed through ISP
- Where
- over ISP
- Time
- 02:45 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- BCN007
- Remarks
- final runway 24
- GA6C at 1,100 ft, 26 nm north, 10:31 pm EDT (02:31 UTC): overcast above 1,100 ft, remarks: low-level wind shear + 5 knots runway 34. At the departure end, 26 nm north of the line.
as filed, and in English
HPN UA /OV HPN/TM 0231/FL011/TP GA6C/SK OVC011/RM LLWS +/- 5 KNOTS RWY34
- Report
- a routine report filed through HPN
- Where
- over HPN
- Time
- 02:31 UTC
- Height
- at 1,100 ft
- Aircraft
- GA6C
- Sky
- overcast from 1,100 ft
- Remarks
- low-level wind shear + 5 knots runway 34
- E175 descending, 10 nm northwest, 10:19 pm EDT (02:19 UTC): remarks: cloud bases 70,000 ft ils runway 4. At the departure end, 10 nm northwest of the line.
as filed, and in English
LGA UA /OV LGA/TM 0219/FLDURD/TP E175/RM CLOUD BASES 700 ILS RWY 4
- Report
- a routine report filed through LGA
- Where
- over LGA
- Time
- 02:19 UTC
- Height
- during the descent
- Aircraft
- E175
- Remarks
- cloud bases 70,000 ft ils runway 4
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 5 forecast points nearest it (JFK, ACY, ORF, ILM, MIA). 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 | 240° at 12 kt | +3 kt | 117 kt | 11 h 54 min | 1:13 pm AST (17:13 UTC) | |
| 5,500 ft | 240° at 13 kt | +4 kt | 116 kt | 12 h | 1:19 pm AST (17:19 UTC) | |
| 7,500 ft | 230° at 17 kt | +6 kt | 13 °C | 114 kt | 12 h 13 min | 1:32 pm AST (17:32 UTC) |
| 9,500 ft | 230° at 21 kt | +8 kt | 10 °C | 112 kt | 12 h 26 min | 1:45 pm AST (17:45 UTC) |
| 11,500 ft | 230° at 22 kt | +9 kt | 8 °C | 111 kt | 12 h 32 min | 1:51 pm AST (17:51 UTC) |
| 13,500 ft | 230° at 24 kt | +10 kt | 4 °C | 110 kt | 12 h 39 min | 1:58 pm AST (17:58 UTC) |
| 15,500 ft | 230° at 27 kt | +10 kt | 0 °C | 110 kt | 12 h 39 min | 1:58 pm AST (17:58 UTC) |
| 17,500 ft | 230° at 29 kt | +10 kt | -5 °C | 110 kt | 12 h 39 min | 1:58 pm AST (17:58 UTC) |
| 18,000 ft FL180 | 230° at 30 kt | +10 kt | -6 °C | 110 kt | 12 h 39 min | 1:58 pm AST (17:58 UTC) |
| 24,000 ft FL240 | 240° at 38 kt | +11 kt | -17 °C | 109 kt | 12 h 46 min | 2:05 pm AST (18:05 UTC) |
| 30,000 ft FL300 | 220° at 51 kt | +28 kt | -31 °C | 92 kt | 15 h 08 min | 4:27 pm AST (20:27 UTC) |
| 34,000 ft FL340 | 210° at 58 kt | +36 kt | -40 °C | 84 kt | 16 h 34 min | 5:53 pm AST (21:53 UTC) |
| 39,000 ft FL390 | 220° at 54 kt | +29 kt | -51 °C | 91 kt | 15 h 18 min | 4:37 pm AST (20:37 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; 25 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° |
| ACY | used from 50 nm out; 61 nm from the line | 220/19 | 220/18 14° | 210/36 9° | 210/35 5° | 220/36 -8° | 240/49 -21° | 220/90 -31° | 230/103 -40° | 230/81 -50° |
| ORF | used from 249 nm out; 208 nm from the line | 250/24 | 230/32 11° | 220/37 10° | 220/37 6° | 230/47 -5° | 230/62 -17° | 220/89 -30° | 220/93 -40° | 230/77 -51° |
| ILM | used from 497 nm out; 392 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° |
| MIA | used from 845 nm out; 635 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° |
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 | IFR Sky: a broken layer at 900 feet, overcast at 2,700 feet | from the north-northeast (020°) at 12 knots, gusting to 21 | 10+ mi | 900 ft | 13 ft | 12:51 am EDT (04:51 UTC) |
| BLM Belmar/Farmingdale, NJ | 20 nm out, 24 nm west of the line | IFR Sky: overcast at 600 feet | from the north (350°) at 11 knots | 10+ mi | 600 ft | 153 ft | 04:56 UTC |
| SJU San Juan, PR | destination | VFR Sky: a few clouds at 2,800 feet | from the east-southeast (110°) at 4 knots | 10+ mi | none | 9 ft | 12:56 am AST (04:56 UTC) |
The highest airport on this list sits at 153 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SJU when you get there the forecast at the estimated arrival, 1:13 pm AST (17:13 UTC)
Wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet VFR
The whole forecast for SJU
- From Sun 10:00 pm AST (02:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,500 feet, scattered clouds at 5,000 feet
- From Mon 10:00 am AST (14:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
- From Mon 1:00 pm AST (17:00 UTC): wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet
- From Mon 7:00 pm AST (23:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 feet
The forecast for JFK, the departure
- From Sun 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 12 knots, visibility 6 miles, light rain showers, mist, scattered clouds at 400 feet, overcast at 800 feet
- From Sun 11:30 pm EDT (03:30 UTC): wind from the north-northeast at 12 knots, visibility 6 miles, mist, thunderstorms nearby, scattered clouds at 400 feet, overcast at 800 feet (thunderheads)
- From Mon 12:30 am EDT (04:30 UTC): wind from the north-northeast at 12 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 5 knots, visibility more than 6 miles, a few clouds at 5,000 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
- 6/4508 CEIBA, PR 24 nm from the route, at the destination end · security · ZSU
Daylight
Sunset at JFK 6:19 pm EDT (22:19 UTC), at SJU 6:03 pm AST (22:03 UTC) (civil twilight ends 6:25 pm AST (22:25 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, Luis Munoz Marin International.