New York Stewart International to Nantucket Memorial SWF → ACK
183 nautical miles (210 statute miles) east on a straight line, true course 093°, about 107° magnetic at the departure end (variation 14W). At 120 knots that is 58 min at the quickest height in today's winds (34,000 ft, a 69-knot tailwind), arriving about 11:31 pm EDT (03:31 UTC), after sunset at the destination. Right now SWF is marginal VFR, wind from the east-northeast (060°) at 10 knots, gusting to 14; ACK is IFR, wind from the east (100°) at 16 knots, gusting to 25. 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 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 first 10 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 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 SWF.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 6,000 ft, 49 nm south, 8:47 pm EDT (00:47 UTC): moderate turbulence. At the departure end, 49 nm south of the line.
as filed, and in English
EWR UA /OV 2 NW OF EWR/TM 0047/FL60/TP B38M/TB MODERATE
- Report
- a routine report filed through EWR
- Where
- 2 northwest of ewr
- Time
- 00:47 UTC
- Height
- at 6,000 ft
- Aircraft
- B38M
- Turbulence
- moderate
- E75S at 10,000 ft, 31 nm north, 7:53 pm EDT (23:53 UTC): moderate clear-air turbulence. 19 nm along the route, 31 nm north of the line.
as filed, and in English
POU UA /OV PWL350015/TM 2353/FL100/TP E75S/TB MOD CAT
- Report
- a routine report filed through POU
- Where
- 15 nm north (350°) of PWL
- Time
- 23:53 UTC
- Height
- at 10,000 ft
- Aircraft
- E75S
- Turbulence
- moderate clear-air turbulence
- BCS3 at 4,000 ft, 27 nm south, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 48 nm along the route, 27 nm south of the line.
as filed, and in English
BDR UA /OV BDR180010/TM 0042/FL040/TP BCS3/WX IMC/TB MOD
- Report
- a routine report filed through BDR
- Where
- 10 nm south (180°) of BDR
- Time
- 00:42 UTC
- Height
- at 4,000 ft
- Aircraft
- BCS3
- Weather
- instrument conditions
- Turbulence
- moderate
- E75S at 16,000 ft, 20 nm north, 8:28 pm EDT (00:28 UTC): moderate chop turbulence. 48 nm along the route, 20 nm north of the line.
as filed, and in English
POU UA /OV PWL100025/TM 0028/FL160/TP E75S/TB MOD CHOP
- Report
- a routine report filed through POU
- Where
- 25 nm east (100°) of PWL
- Time
- 00:28 UTC
- Height
- at 16,000 ft
- Aircraft
- E75S
- Turbulence
- moderate chop
- TBM9 descending, 39 nm south, 7:45 pm EDT (23:45 UTC): moderate turbulence, a broken layer above 700 ft. 48 nm along the route, 39 nm south of the line.
as filed, and in English
ISP UA /OV ISP/TM 2345/FLDURD/TP TBM9/SK BKN007/TB MOD
- Report
- a routine report filed through ISP
- Where
- over ISP
- Time
- 23:45 UTC
- Height
- during the descent
- Aircraft
- TBM9
- Sky
- a broken layer from 700 ft
- Turbulence
- moderate
- PC12 at 10,000 ft, 15 nm north, 7:53 pm EDT (23:53 UTC): moderate turbulence. 87 nm along the route, 15 nm north of the line.
as filed, and in English
BDL UA /OV HFD100017/TM 2353/FL100/TP PC12/TB MOD
- Report
- a routine report filed through BDL
- Where
- 17 nm east (100°) of HFD
- Time
- 23:53 UTC
- Height
- at 10,000 ft
- Aircraft
- PC12
- Turbulence
- moderate
- E75S at 16,000 ft, 37 nm north, 7:35 pm EDT (23:35 UTC): moderate clear-air turbulence above 16,000 ft, remarks: moderate in +ra to light chop. 96 nm along the route, 37 nm north of the line.
as filed, and in English
SFZ UA /OV PUT360003/TM 2335/FL160/TP E75S/TB MOD 160 CAT/RM MOD IN +RA TO LGT CHOP
- Report
- a routine report filed through SFZ
- Where
- 3 nm north (360°) of PUT
- Time
- 23:35 UTC
- Height
- at 16,000 ft
- Aircraft
- E75S
- Turbulence
- moderate at 16,000 ft clear-air turbulence
- Remarks
- moderate in +ra to light chop
- BCS3 at 12,000 ft, 42 nm north, 8:11 pm EDT (00:11 UTC): moderate turbulence, rain, remarks: ssoxs dept from 12,000 ft to 16,000 ft. 135 nm along the route, 42 nm north of the line.
as filed, and in English
BOS UA /OV BOS200020/TM 0011/FL120/TP BCS3/WX RA+/TB MOD/RM SSOXS DEPT 120-160
- Report
- a routine report filed through BOS
- Where
- 20 nm south (200°) of BOS
- Time
- 00:11 UTC
- Height
- at 12,000 ft
- Aircraft
- BCS3
- Weather
- ra+
- Turbulence
- moderate
- Remarks
- ssoxs dept from 12,000 ft to 16,000 ft
- BCS3 at 18,000 ft, 22 nm north, 8:17 pm EDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. 144 nm along the route, 22 nm north of the line.
as filed, and in English
EWB UA /OV EWB/TM 0017/FL180/TP BCS3/TB MOD CHOP/RM MOD CHOP180-210 SMOOTH ABOVE FL220
- Report
- a routine report filed through EWB
- Where
- over EWB
- Time
- 00:17 UTC
- Height
- at 18,000 ft
- Aircraft
- BCS3
- Turbulence
- moderate chop
- Remarks
- moderate CHOP180-210 smooth above 22,000 ft
- A321 at 5,000 ft, 49 nm north, 8:46 pm EDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. 154 nm along the route, 49 nm north of the line.
as filed, and in English
BOS UA /OV BOS150020/TM 0046/FL050/TP A321/TB MOD 150-050
- Report
- a routine report filed through BOS
- Where
- 20 nm southeast (150°) of BOS
- Time
- 00:46 UTC
- Height
- at 5,000 ft
- Aircraft
- A321
- Turbulence
- moderate from 15,000 ft to 5,000 ft
- B739 at 700 ft, 49 nm south, 10:04 pm EDT (02:04 UTC): a broken layer above 700 ft. At the departure end, 49 nm south of the line.
as filed, and in English
EWR UA /OV 2 MILE FINAL RY04R/TM 0204/FL007/TP B739/SK 007BKN
- Report
- a routine report filed through EWR
- Where
- 2 mile final runway 04R
- Time
- 02:04 UTC
- Height
- at 700 ft
- Aircraft
- B739
- Sky
- 007BKN
- B38M at 1,000 ft, 49 nm south, 8:49 pm EDT (00:49 UTC): a broken layer above 1,000 ft. At the departure end, 49 nm south of the line.
as filed, and in English
EWR UA /OV FINAL RY04R/TM 0049/FL010/TP B38M/SK BKN010
- Report
- a routine report filed through EWR
- Where
- final runway 04R
- Time
- 00:49 UTC
- Height
- at 1,000 ft
- Aircraft
- B38M
- Sky
- a broken layer from 1,000 ft
- E175 descending, 43 nm south, 10:19 pm EDT (02:19 UTC): remarks: cloud bases 70,000 ft ils runway 4. 10 nm along the route, 43 nm south 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
- A320 descending, 43 nm south, 7:45 pm EDT (23:45 UTC): remarks: cloud bases 80,000 ft ils runway 4. 10 nm along the route, 43 nm south of the line.
as filed, and in English
LGA UA /OV LGA/TM 2345/FLDURD/TP A320/RM CLOUD BASES 800 ILS RWY 4
- Report
- a routine report filed through LGA
- Where
- over LGA
- Time
- 23:45 UTC
- Height
- during the descent
- Aircraft
- A320
- Remarks
- cloud bases 80,000 ft ils runway 4
16 more routine reports are on the map.
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 2 forecast points nearest it (BDL, ACK). 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 | 200° at 13 kt | −3 kt | 123 kt | 1 h 29 min | 12:02 am EDT (04:02 UTC) | |
| 5,500 ft | 270° at 24 kt | −24 kt | 144 kt | 1 h 16 min | 11:49 pm EDT (03:49 UTC) | |
| 7,500 ft | 280° at 29 kt | −29 kt | 11 °C | 149 kt | 1 h 14 min | 11:47 pm EDT (03:47 UTC) |
| 9,500 ft | 270° at 30 kt | −30 kt | 8 °C | 150 kt | 1 h 13 min | 11:46 pm EDT (03:46 UTC) |
| 11,500 ft | 260° at 36 kt | −35 kt | 4 °C | 155 kt | 1 h 11 min | 11:44 pm EDT (03:44 UTC) |
| 13,500 ft | 260° at 39 kt | −37 kt | 0 °C | 157 kt | 1 h 10 min | 11:43 pm EDT (03:43 UTC) |
| 15,500 ft | 250° at 40 kt | −37 kt | -4 °C | 157 kt | 1 h 10 min | 11:43 pm EDT (03:43 UTC) |
| 17,500 ft | 250° at 43 kt | −37 kt | -9 °C | 157 kt | 1 h 10 min | 11:43 pm EDT (03:43 UTC) |
| 18,000 ft FL180 | 240° at 43 kt | −38 kt | -10 °C | 158 kt | 1 h 09 min | 11:42 pm EDT (03:42 UTC) |
| 24,000 ft FL240 | 230° at 50 kt | −36 kt | -19 °C | 156 kt | 1 h 10 min | 11:43 pm EDT (03:43 UTC) |
| 30,000 ft FL300 | 230° at 76 kt | −58 kt | -32 °C | 178 kt | 1 h 02 min | 11:35 pm EDT (03:35 UTC) |
| 34,000 ft FL340 | 230° at 90 kt | −69 kt | -41 °C | 189 kt | 58 min | 11:31 pm EDT (03:31 UTC) |
| 39,000 ft FL390 | 230° at 88 kt | −68 kt | -52 °C | 188 kt | 58 min | 11:31 pm EDT (03:31 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BDL | used from 0 nm out; 48 nm from the line | 120/24 | 290/23 12° | 280/21 8° | 250/36 3° | 250/41 -11° | 230/48 -21° | 230/78 -32° | 230/96 -41° | 230/86 -52° |
| ACK | used from 96 nm out; 63 nm from the line | 230/29 | 270/37 16° | 270/38 10° | 270/40 4° | 240/46 -8° | 230/52 -17° | 240/74 -31° | 240/83 -41° | 240/91 -53° |
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 |
|---|---|---|---|---|---|---|---|
| SWF New York, NY | departure | marginal VFR Sky: a few clouds at 700 feet, overcast at 1,500 feet Weather: light rain, mist | from the east-northeast (060°) at 10 knots, gusting to 14 | 3 mi | 1,500 ft | 490 ft | 7:45 pm EDT (23:45 UTC) |
| DXR Danbury, CT | 29 nm out, 6 nm south of the line, tower | IFR Sky: overcast at 800 feet Weather: light rain | from the northeast (050°) at 8 knots | 7 mi | 800 ft | 456 ft | 01:53 UTC |
| OXC Oxford, CT | 48 nm out, 5 nm west of the line, tower | low IFR Sky: overcast at 400 feet Weather: light rain | from the northeast (050°) at 16 knots, gusting to 19 | 10+ mi | 400 ft | 730 ft | 01:56 UTC |
| GON Groton (New London), CT | 96 nm out, 5 nm southwest of the line, tower | marginal VFR Sky: a broken layer at 1,000 feet, overcast at 1,400 feet Weather: rain, mist | from the north (360°) at 12 knots | 3 mi | 1,000 ft | 9 ft | 02:21 UTC |
| MVY Vineyard Haven, MA | 154 nm out, 7 nm northeast of the line, tower | marginal VFR Sky: a few clouds at 600 feet, scattered clouds at 900 feet, overcast at 2,400 feet Weather: rain | from the east (080°) at 16 knots, gusting to 21 | 10+ mi | 2,400 ft | 66 ft | 02:02 UTC |
| ACK Nantucket, MA | destination | IFR Sky: overcast at 1,700 feet Weather: rain, mist | from the east (100°) at 16 knots, gusting to 25 | 2.5 mi | 1,700 ft | 46 ft | 10:27 pm EDT (02:27 UTC) |
The highest airport on this list sits at 730 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ACK when you get there the forecast at the estimated arrival, 11:31 pm EDT (03:31 UTC)
Wind from the east at 14 knots, gusting to 24, visibility 2 miles, rain, mist, overcast at 1,000 feet IFR
The whole forecast for ACK
- From Sun 8:00 pm EDT (00:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, light rain, a few clouds at 2,400 feet, scattered clouds at 3,500 feet and more above
- From Sun 10:00 pm EDT (02:00 UTC): wind from the east at 14 knots, gusting to 24, visibility 2 miles, rain, mist, overcast at 1,000 feet
- From Mon 1:00 am EDT (05:00 UTC): wind from the east at 16 knots, gusting to 23, visibility 3 miles, rain, mist, overcast at 300 feet
- From Mon 3:00 am EDT (07:00 UTC): wind from the east-northeast at 15 knots, visibility 1 mile, light rain showers, mist, overcast at 300 feet
- From Mon 5:00 am EDT (09:00 UTC): wind from the north-northeast at 15 knots, visibility ¾ mile, mist, overcast at 300 feet
- 30% chance between Mon 5:00 am EDT (09:00 UTC) and 6:00 am EDT (10:00 UTC): visibility ¾ mile, light rain showers, mist, overcast at 100 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north-northeast at 15 knots, visibility more than 6 miles, a broken layer at 800 feet
- From Mon 4:00 pm EDT (20:00 UTC): wind from the north at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 3,000 feet
The forecast for SWF, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the east at 9 knots, visibility 4 miles, rain, mist, a broken layer at 600 feet, overcast at 1,000 feet
- From Sun 10:00 pm EDT (02:00 UTC): wind from the northeast at 7 knots, visibility 5 miles, light rain showers, mist, a few clouds at 400 feet, overcast at 600 feet
- From Mon 7:00 am EDT (11:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, a broken layer at 800 feet, overcast at 1,500 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north-northeast at 6 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north at 7 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 4:00 pm EDT (20:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
- From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/7153 North Sicuate, RI, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 24 nm from the route, 115 nm along the route · drones kept away from a public gathering · until 12 October · ZBW
Daylight
Sunset at SWF 6:20 pm EDT (22:20 UTC), at ACK 6:04 pm EDT (22:04 UTC) (civil twilight ends 6:32 pm EDT (22:32 UTC)). At 120 knots the arrival at ACK is before sunrise there (6:48 am EDT (10:48 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: New York Stewart International, Nantucket Memorial.