Portland International Jetport to Laguardia Airport PWM → LGA
234 nautical miles (269 statute miles) southwest on a straight line, true course 224°, about 239° magnetic at the departure end (variation 15W). At 120 knots that is 2 h 05 min at the quickest height in today's winds (4,500 ft, a 8-knot headwind), arriving about 1:43 am EDT (05:43 UTC), after sunset at the destination. 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: 3,079 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 E10E: thunderstorms (a convective SIGMET) up to 39,000 ft, moving from the southwest at 35 knots, until 12:55 am EDT (04:55 UTC). Over the route from 166 to 176 nm out.
as issued
WSUS31 KKCI 120255 MKCE WST 120255 CONVECTIVE SIGMET 10E VALID UNTIL 0455Z MA RI CT NY AND MA RI NJ NY CT CSTL WTRS FROM 20NW PVD-70SSE ACK-190SSE HTO-70ESE CYN-30SW BDL-20NW PVD AREA EMBD TS MOV FROM 24035KT. TOPS TO FL390.
- SIGMET E11E: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 20 knots, until 12:55 am EDT (04:55 UTC). Over the last 0 nm of the route.
as issued
WSUS31 KKCI 120255 MKCE WST 120255 CONVECTIVE SIGMET 11E VALID UNTIL 0455Z NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS FROM 20NE JFK-90SE SIE-20NNW ORF-30ENE EKN-10S JST-20NE JFK AREA EMBD TS MOV FROM 24020KT. TOPS TO FL340.
- AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the first 127 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the whole route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the departure end.
- 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 195 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 195 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 PWM.
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 02:00–09:00 UTC · at 120 knots true airspeed
The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 4 forecast points nearest it (PWM, BOS, BDL, 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 |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 8 kt | +8 kt | 112 kt | 2 h 05 min | 1:43 am EDT (05:43 UTC) | |
| 6,500 ft | 260° at 21 kt | +16 kt | 11 °C | 104 kt | 2 h 15 min | 1:53 am EDT (05:53 UTC) |
| 8,500 ft | 260° at 23 kt | +18 kt | 9 °C | 102 kt | 2 h 18 min | 1:56 am EDT (05:56 UTC) |
| 10,500 ft | 250° at 27 kt | +23 kt | 5 °C | 97 kt | 2 h 25 min | 2:03 am EDT (06:03 UTC) |
| 12,500 ft | 250° at 32 kt | +28 kt | 2 °C | 92 kt | 2 h 33 min | 2:11 am EDT (06:11 UTC) |
| 14,500 ft | 250° at 36 kt | +32 kt | -3 °C | 88 kt | 2 h 40 min | 2:18 am EDT (06:18 UTC) |
| 16,500 ft | 250° at 40 kt | +36 kt | -7 °C | 84 kt | 2 h 47 min | 2:25 am EDT (06:25 UTC) |
| 18,000 ft FL180 | 250° at 42 kt | +39 kt | -10 °C | 81 kt | 2 h 53 min | 2:31 am EDT (06:31 UTC) |
| 24,000 ft FL240 | 230° at 53 kt | +52 kt | -20 °C | 68 kt | 3 h 26 min | 3:04 am EDT (07:04 UTC) |
| 30,000 ft FL300 | 230° at 77 kt | +77 kt | -33 °C | 43 kt | 5 h 27 min | 5:05 am EDT (09:05 UTC) |
| 34,000 ft FL340 | 230° at 95 kt | +93 kt | -41 °C | 27 kt | 8 h 40 min | 8:18 am EDT (12:18 UTC) |
| 39,000 ft FL390 | 230° at 89 kt | +87 kt | -52 °C | 33 kt | 7 h 05 min | 6:43 am EDT (10:43 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PWM | used from 0 nm out; 24 nm from the line | 180/9 | 280/28 9° | 230/30 6° | 250/22 0° | 240/45 -9° | 230/63 -20° | 230/72 -34° | 240/87 -43° | 240/94 -54° |
| BOS | used from 49 nm out; 31 nm from the line | 110/20 | 200/26 12° | 280/24 8° | 260/29 3° | 250/47 -10° | 230/59 -19° | 230/74 -33° | 240/95 -41° | 240/96 -53° |
| BDL | used from 98 nm out; 25 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° |
| JFK | used from 195 nm out; 24 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 |
|---|---|---|---|---|---|---|---|
| PWM Portland, ME | departure | no report just now | 75 ft | ||||
| PSM Portsmouth, NH | 39 nm out, 7 nm southeast of the line, tower | no report just now | 100 ft | ||||
| ASH Nashua, NH | 78 nm out, 5 nm north of the line, tower | no report just now | 200 ft | ||||
| ORH Worcester, MA | 107 nm out, 7 nm southeast of the line, tower | no report just now | 1,009 ft | ||||
| HFD Hartford, CT | 156 nm out, 3 nm east of the line, tower | no report just now | 18 ft | ||||
| HPN White Plains, NY | 215 nm out, 6 nm northwest of the line, tower | no report just now | 439 ft | ||||
| LGA New York, NY | destination | no report just now | 20 ft |
The highest airport on this list sits at 1,009 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LGA when you get there the forecast at the estimated arrival, 1:43 am EDT (05:43 UTC)
LGA 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 4 nm from the route, at the destination end · security · until 20 October · ZNY
Daylight
Sunset at PWM 6:03 pm EDT (22:03 UTC), at LGA 6:20 pm EDT (22:20 UTC) (civil twilight ends 6:47 pm EDT (22:47 UTC)). At 120 knots the arrival at LGA is before sunrise there (7:03 am EDT (11:03 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: Portland International Jetport, Laguardia Airport.