Trenton Mercer Airport to Groton-New London Airport TTN → GON
141 nautical miles (162 statute miles) northeast on a straight line, true course 062°, about 074° magnetic at the departure end (variation 12W). At 120 knots that is 39 min at the quickest height in today's winds (34,000 ft, a 97-knot tailwind), arriving about 2:00 am EDT (06:00 UTC), after sunset at the destination. Right now TTN is IFR, wind from the north (010°) at 9 knots; GON is marginal VFR, wind from the north (010°) at 13 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
- 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 113 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.
- 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.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the last 19 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 TTN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A319 at 23,000 ft, 23 nm southeast, 11:21 pm EDT (03:21 UTC): moderate turbulence. At the departure end, 23 nm southeast 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, 5 nm east, 10:46 pm EDT (02:46 UTC): overcast above 700 ft. 47 nm along the route, 5 nm east 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
- GA6C at 1,100 ft, 19 nm northwest, 10:31 pm EDT (02:31 UTC): overcast above 1,100 ft, remarks: low-level wind shear + 5 knots runway 34. 66 nm along the route, 19 nm northwest 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
- A320 descending, 8 nm south, 10:45 pm EDT (02:45 UTC): remarks: final runway 24. 84 nm along the route, 8 nm south 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
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 (JFK, BDL). 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 | 230° at 10 kt | −10 kt | 130 kt | 1 h 05 min | 2:26 am EDT (06:26 UTC) | |
| 5,500 ft | 260° at 19 kt | −18 kt | 138 kt | 1 h 01 min | 2:22 am EDT (06:22 UTC) | |
| 7,500 ft | 260° at 25 kt | −24 kt | 11 °C | 144 kt | 59 min | 2:20 am EDT (06:20 UTC) |
| 9,500 ft | 250° at 29 kt | −29 kt | 8 °C | 149 kt | 57 min | 2:18 am EDT (06:18 UTC) |
| 11,500 ft | 240° at 33 kt | −33 kt | 5 °C | 153 kt | 55 min | 2:16 am EDT (06:16 UTC) |
| 13,500 ft | 240° at 35 kt | −35 kt | 0 °C | 155 kt | 55 min | 2:16 am EDT (06:16 UTC) |
| 15,500 ft | 240° at 37 kt | −37 kt | -4 °C | 157 kt | 54 min | 2:15 am EDT (06:15 UTC) |
| 17,500 ft | 240° at 38 kt | −38 kt | -9 °C | 158 kt | 54 min | 2:15 am EDT (06:15 UTC) |
| 18,000 ft FL180 | 240° at 39 kt | −39 kt | -10 °C | 159 kt | 53 min | 2:14 am EDT (06:14 UTC) |
| 24,000 ft FL240 | 240° at 46 kt | −46 kt | -21 °C | 166 kt | 51 min | 2:12 am EDT (06:12 UTC) |
| 30,000 ft FL300 | 230° at 83 kt | −81 kt | -32 °C | 201 kt | 42 min | 2:03 am EDT (06:03 UTC) |
| 34,000 ft FL340 | 230° at 100 kt | −97 kt | -40 °C | 217 kt | 39 min | 2:00 am EDT (06:00 UTC) |
| 39,000 ft FL390 | 230° at 85 kt | −82 kt | -51 °C | 202 kt | 42 min | 2:03 am EDT (06:03 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; 29 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° |
| BDL | used from 94 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° |
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 |
|---|---|---|---|---|---|---|---|
| TTN Trenton, NJ | departure | IFR Sky: a broken layer at 800 feet, overcast at 1,900 feet | from the north (010°) at 9 knots | 10+ mi | 800 ft | 212 ft | 12:53 am EDT (04:53 UTC) |
| EWR Newark, NJ | 38 nm out, 9 nm northwest of the line, tower | IFR Sky: a broken layer at 800 feet, overcast at 1,300 feet | from the north (010°) at 14 knots, gusting to 24 | 10+ mi | 800 ft | 17 ft | 04:51 UTC |
| JFK New York, NY | 56 nm out, 5 nm southwest of the line, tower | 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 | 04:51 UTC |
| BDR Bridgeport, CT | 94 nm out, 13 nm northwest of the line, tower | marginal VFR Sky: overcast at 1,800 feet Weather: light rain | from the north (360°) at 14 knots | 10+ mi | 1,800 ft | 8 ft | 04:52 UTC |
| GON Groton (New London), CT | destination | marginal VFR Sky: a few clouds at 800 feet, overcast at 1,400 feet | from the north (010°) at 13 knots | 10+ mi | 1,400 ft | 9 ft | 1:15 am EDT (05:15 UTC) |
The highest airport on this list sits at 212 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GON when you get there the forecast at the estimated arrival, 2:00 am EDT (06:00 UTC)
Wind from the northeast at 13 knots, visibility 5 miles, light rain showers, scattered clouds at 400 feet, overcast at 600 feet IFR
At times between Mon 12:00 am EDT (04:00 UTC) and 4:00 am EDT (08:00 UTC): a broken layer at 400 feet low IFR
The whole forecast for GON
- From Sun 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 13 knots, visibility 3 miles, rain, mist, overcast at 800 feet
- From Mon 12:00 am EDT (04:00 UTC): wind from the northeast at 13 knots, visibility 5 miles, light rain showers, scattered clouds at 400 feet, overcast at 600 feet
- At times between Mon 12:00 am EDT (04:00 UTC) and 4:00 am EDT (08:00 UTC): a broken layer at 400 feet
- From Mon 4:00 am EDT (08:00 UTC): wind from the north-northeast at 12 knots, visibility 6 miles, mist, showers nearby, scattered clouds at 400 feet, overcast at 600 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 11 knots, visibility more than 6 miles, a broken layer at 700 feet, overcast at 1,200 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Mon 3:00 pm EDT (19:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
The forecast for TTN, the departure
- From Sun 9:00 pm EDT (01:00 UTC): wind from the northeast at 8 knots, visibility 3 miles, light rain, mist, overcast at 800 feet
- From Sun 11:00 pm EDT (03:00 UTC): wind from the north at 8 knots, visibility 5 miles, light rain, mist, overcast at 500 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the north at 10 knots, visibility 5 miles, mist, overcast at 800 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, overcast at 2,500 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, overcast at 5,000 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 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 7 nm from the route, 47 nm along the route · security · until 20 October · ZNY
Daylight
Sunset at TTN 6:24 pm EDT (22:24 UTC), at GON 6:12 pm EDT (22:12 UTC) (civil twilight ends 6:40 pm EDT (22:40 UTC)). At 120 knots the arrival at GON is before sunrise there (6:56 am EDT (10:56 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: Trenton Mercer Airport, Groton-New London Airport.