Allegheny County to Groton-New London Airport AGC → GON
363 nautical miles (417 statute miles) east on a straight line, true course 078°, about 087° magnetic at the departure end (variation 9W). At 120 knots that is 2 h 26 min at the quickest height in today's winds (39,000 ft, a 29-knot tailwind), arriving about 12:37 pm EDT (16:37 UTC). 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 first 88 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 186 nm of the route.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, 78 nm along the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the last 98 nm of the route.
- 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 last 78 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 AGC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 (AGC, PSB, AVP, 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 | 330° at 18 kt | −7 kt | 127 kt | 2 h 51 min | 1:02 pm EDT (17:02 UTC) | |
| 5,500 ft | 330° at 22 kt | −6 kt | 14 °C | 126 kt | 2 h 53 min | 1:04 pm EDT (17:04 UTC) |
| 7,500 ft | 340° at 23 kt | −5 kt | 11 °C | 125 kt | 2 h 54 min | 1:05 pm EDT (17:05 UTC) |
| 9,500 ft | 340° at 25 kt | −4 kt | 8 °C | 124 kt | 2 h 56 min | 1:07 pm EDT (17:07 UTC) |
| 11,500 ft | 340° at 25 kt | −3 kt | 4 °C | 123 kt | 2 h 57 min | 1:08 pm EDT (17:08 UTC) |
| 13,500 ft | 340° at 25 kt | −5 kt | 0 °C | 125 kt | 2 h 54 min | 1:05 pm EDT (17:05 UTC) |
| 15,500 ft | 330° at 26 kt | −7 kt | -3 °C | 127 kt | 2 h 51 min | 1:02 pm EDT (17:02 UTC) |
| 17,500 ft | 330° at 27 kt | −10 kt | -7 °C | 130 kt | 2 h 48 min | 12:59 pm EDT (16:59 UTC) |
| 18,000 ft FL180 | 330° at 27 kt | −10 kt | -8 °C | 130 kt | 2 h 48 min | 12:59 pm EDT (16:59 UTC) |
| 24,000 ft FL240 | 320° at 31 kt | −18 kt | -20 °C | 138 kt | 2 h 38 min | 12:49 pm EDT (16:49 UTC) |
| 30,000 ft FL300 | 320° at 40 kt | −18 kt | -36 °C | 138 kt | 2 h 38 min | 12:49 pm EDT (16:49 UTC) |
| 34,000 ft FL340 | 320° at 51 kt | −22 kt | -46 °C | 142 kt | 2 h 33 min | 12:44 pm EDT (16:44 UTC) |
| 39,000 ft FL390 | 310° at 49 kt | −29 kt | -51 °C | 149 kt | 2 h 26 min | 12:37 pm EDT (16:37 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| AGC | used from 0 nm out; 25 nm from the line | 270/15 | 320/17 14° | 320/22 9° | 340/23 4° | 310/25 -8° | 290/30 -19° | 280/40 -36° | 290/49 -45° | 300/53 -49° |
| PSB | used from 49 nm out; 21 nm from the line | 330/23 14° | 340/24 9° | 340/25 3° | 320/24 -8° | 300/29 -20° | 310/39 -36° | 310/52 -46° | 310/56 -50° | |
| AVP | used from 147 nm out; 36 nm from the line | 330/21 | 340/24 14° | 350/27 9° | 350/25 3° | 330/29 -8° | 310/31 -20° | 330/41 -36° | 330/57 -46° | 320/55 -51° |
| JFK | used from 245 nm out; 33 nm from the line | 360/20 | 340/23 11° | 340/26 8° | 350/26 3° | 350/30 -8° | 350/36 -21° | 350/52 -36° | 350/54 -44° | 320/45 -53° |
| BDL | used from 294 nm out; 45 nm from the line | 330/20 | 340/23 12° | 340/25 8° | 340/27 3° | 330/30 -9° | 330/39 -21° | 340/48 -37° | 340/53 -46° | 320/33 -55° |
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 |
|---|---|---|---|---|---|---|---|
| AGC Pittsburgh, PA | departure | no report just now | 1,251 ft | ||||
| LBE Latrobe, PA | 20 nm out, 10 nm southeast of the line, tower | no report just now | 1,198 ft | ||||
| JST Johnstown, PA | 49 nm out, 12 nm south of the line, tower | no report just now | 2,284 ft | ||||
| UNV State College, PA | 98 nm out, 11 nm north of the line, tower | no report just now | 1,231 ft | ||||
| SEG Selinsgrove, PA | 147 nm out, 5 nm west of the line | no report just now | 463 ft | ||||
| AVP Wilkes-Barre/Scranton, PA | 196 nm out, 23 nm north of the line, tower | no report just now | 961 ft | ||||
| ABE Allentown, PA | 206 nm out, 19 nm south of the line, tower | no report just now | 393 ft | ||||
| CDW Caldwell, NJ | 255 nm out, 15 nm southeast of the line, tower | no report just now | 172 ft | ||||
| BDR Bridgeport, CT | 314 nm out, 4 nm south of the line, tower | no report just now | 8 ft | ||||
| HVN New Haven, CT | 324 nm out, 1 nm northeast of the line, tower | no report just now | 12 ft | ||||
| GON Groton (New London), CT | destination | no report just now | 9 ft |
The highest airport on this list sits at 2,284 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, 12:37 pm EDT (16:37 UTC)
GON has no terminal forecast; use the nearest airport that does.
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 22 nm from the route, 274 nm along the route · security · until 20 October · ZNY
Daylight
Sunset at AGC 6:44 pm EDT (22:44 UTC), at GON 6:12 pm EDT (22:12 UTC) (civil twilight ends 6:40 pm EDT (22:40 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: Allegheny County, Groton-New London Airport.