Portland International Jetport to General Edward Lawrence Logan International PWM → BOS
83 nautical miles (95 statute miles) south on a straight line, true course 202°, about 217° magnetic at the departure end (variation 15W). At 120 knots that is 46 min at the quickest height in today's winds (10,500 ft, a 12-knot headwind), arriving about 10:21 pm EDT (02:21 UTC), after sunset at the destination. Right now PWM is VFR, wind from the south-southwest (210°) at 3 knots; BOS is marginal VFR, wind from the east (080°) at 8 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: 10 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 ZULU 1C: moderate icing up to 24,000 ft, from 8:00 pm EDT (00:00 UTC). Over the whole route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft, from 8:00 pm EDT (00:00 UTC). Over the whole route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft, from 8:00 pm EDT (00:00 UTC). Over the whole route.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 8:00 pm EDT (00:00 UTC). Over the last 9 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
- A321 at 5,000 ft, 21 nm southeast, 8:46 pm EDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. At the destination end, 21 nm southeast 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
- BCS3 at 18,000 ft, 41 nm south, 8:17 pm EDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. At the destination end, 41 nm south 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
- BCS3 at 12,000 ft, 20 nm south, 8:11 pm EDT (00:11 UTC): moderate turbulence, rain, remarks: ssoxs dept from 12,000 ft to 16,000 ft. At the destination end, 20 nm south 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
- E75S at 16,000 ft, 44 nm southwest, 7:35 pm EDT (23:35 UTC): moderate clear-air turbulence above 16,000 ft, remarks: moderate in +ra to light chop. At the destination end, 44 nm southwest 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 13,000 ft, 1 nm southeast, 7:03 pm EDT (23:03 UTC): moderate turbulence from 13,000 ft to 16,000 ft, heavy rain, remarks: during the climb. At the destination end, 1 nm southeast of the line.
as filed, and in English
BOS UA /OV BOS18005/TM 2303/FL130/TP BCS3/WX +RA/TB MOD 130-160/RM DURC
- Report
- a routine report filed through BOS
- Where
- BOS18005
- Time
- 23:03 UTC
- Height
- at 13,000 ft
- Aircraft
- BCS3
- Weather
- heavy rain
- Turbulence
- moderate from 13,000 ft to 16,000 ft
- Remarks
- during the climb
- A321 at 1,900 ft, 4 nm south, 6:55 pm EDT (22:55 UTC): rain, remarks: during the descent runway 22L bos. 74 nm along the route, 4 nm south of the line.
as filed, and in English
BOS UA /OV KBOS040005/TM 2255/FL019/TP A321/WX FV05SM RA/RM DURD RY 22L BOS
- Report
- a routine report filed through BOS
- Where
- 5 nm northeast (040°) of KBOS
- Time
- 22:55 UTC
- Height
- at 1,900 ft
- Aircraft
- A321
- Weather
- flight visibility 5 miles, rain
- Remarks
- during the descent runway 22L bos
- BCS3 at 600 ft, 2 nm northeast, 9:20 pm EDT (01:20 UTC): a broken layer above 600 ft, remarks: during the descent runway 22L bos. At the destination end, 2 nm northeast of the line.
as filed, and in English
BOS UA /OV KBOS040002/TM 0120/FL006/TP BCS3/SK BKN006/RM DURD RY 22L BOS
- Report
- a routine report filed through BOS
- Where
- 2 nm northeast (040°) of KBOS
- Time
- 01:20 UTC
- Height
- at 600 ft
- Aircraft
- BCS3
- Sky
- a broken layer from 600 ft
- Remarks
- during the descent runway 22L bos
- E75S at 12,000 ft, 41 nm south, 8:59 pm EDT (00:59 UTC): light turbulence, remarks: during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft. At the destination end, 41 nm south of the line.
as filed, and in English
EWB UA /OV EWB/TM 0059/FL120/TP E75S/TB LGT MOD/RM DURC 120-170 SMOOTH ABOVE 180
- Report
- a routine report filed through EWB
- Where
- over EWB
- Time
- 00:59 UTC
- Height
- at 12,000 ft
- Aircraft
- E75S
- Turbulence
- light moderate
- Remarks
- during the climb from 12,000 ft to 17,000 ft smooth above 18,000 ft
- A321 , 0 nm south, 8:56 pm EDT (00:56 UTC): remarks: braking action fair during landing runway 22L bos. At the destination end, 0 nm south of the line.
as filed, and in English
BOS UA /OV KBOS/TM 0056/FL000/TP A321/RM BRAKING ACTION FAIR DURING LANDING RY 22L BOS
- Report
- a routine report filed through BOS
- Where
- over KBOS
- Time
- 00:56 UTC
- Height
- at 0 ft
- Aircraft
- A321
- Remarks
- braking action fair during landing runway 22L bos
- E55P at 600 ft, 14 nm northwest, 8:48 pm EDT (00:48 UTC): overcast above 600 ft. At the destination end, 14 nm northwest of the line.
as filed, and in English
BED UA /OV BED/TM 0048/FL006/TP E55P/SK OVC006
- Report
- a routine report filed through BED
- Where
- over BED
- Time
- 00:48 UTC
- Height
- at 600 ft
- Aircraft
- E55P
- Sky
- overcast from 600 ft
- E75S at 16,000 ft, 35 nm west, 8:07 pm EDT (00:07 UTC): light chop turbulence, remarks: moderate during the climb. At the destination end, 35 nm west of the line.
as filed, and in English
SFZ UA /OV PUT030015/TM 0007/FL160/TP E75S/TB OCNL LGT CHOP 160 MOD CAT BLO 150/RM MOD DURC
- Report
- a routine report filed through SFZ
- Where
- 15 nm northeast (030°) of PUT
- Time
- 00:07 UTC
- Height
- at 16,000 ft
- Aircraft
- E75S
- Turbulence
- occasional light chop at 16,000 ft moderate clear-air turbulence below 15,000 ft
- Remarks
- moderate during the climb
- E75S at 11,000 ft, 25 nm south, 7:59 pm EDT (23:59 UTC): light to moderate turbulence. At the destination end, 25 nm south of the line.
as filed, and in English
BOS UA /OV BOS210025/TM 2359/FL110/TP E75S/TB LGT TO MOD
- Report
- a routine report filed through BOS
- Where
- 25 nm southwest (210°) of BOS
- Time
- 23:59 UTC
- Height
- at 11,000 ft
- Aircraft
- E75S
- Turbulence
- light to moderate
- BCS3 at 700 ft, 3 nm northeast, 7:56 pm EDT (23:56 UTC): a broken layer above 700 ft, remarks: during the descent runway 22L bos. At the destination end, 3 nm northeast of the line.
as filed, and in English
BOS UA /OV KBOS040003/TM 2356/FL007/TP BCS3/SK BKN007/RM DURD RY 22L BOS
- Report
- a routine report filed through BOS
- Where
- 3 nm northeast (040°) of KBOS
- Time
- 23:56 UTC
- Height
- at 700 ft
- Aircraft
- BCS3
- Sky
- a broken layer from 700 ft
- Remarks
- during the descent runway 22L bos
- BC3 at 20,000 ft, 30 nm southeast, 7:51 pm EDT (23:51 UTC): light chop turbulence, remarks: during the climb from 14,000 ft to 20,000 ft ssoxs sid. At the destination end, 30 nm southeast of the line.
as filed, and in English
PYM UA /OV PYM/TM 2351/FL200/TP BC3/TB LGT CHOP/RM DURC 140-200 SSOXS SID
- Report
- a routine report filed through PYM
- Where
- over PYM
- Time
- 23:51 UTC
- Height
- at 20,000 ft
- Aircraft
- BC3
- Turbulence
- light chop
- Remarks
- during the climb from 14,000 ft to 20,000 ft ssoxs sid
2 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 2 forecast points nearest it (PWM, BOS). 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 | 190° at 23 kt | +22 kt | 98 kt | 51 min | 10:26 pm EDT (02:26 UTC) | |
| 6,500 ft | 200° at 20 kt | +20 kt | 7 °C | 100 kt | 50 min | 10:25 pm EDT (02:25 UTC) |
| 8,500 ft | 250° at 20 kt | +13 kt | 6 °C | 107 kt | 47 min | 10:22 pm EDT (02:22 UTC) |
| 10,500 ft | 260° at 23 kt | +12 kt | 3 °C | 108 kt | 46 min | 10:21 pm EDT (02:21 UTC) |
| 12,500 ft | 260° at 26 kt | +13 kt | -1 °C | 107 kt | 47 min | 10:22 pm EDT (02:22 UTC) |
| 14,500 ft | 260° at 30 kt | +17 kt | -3 °C | 103 kt | 48 min | 10:23 pm EDT (02:23 UTC) |
| 16,500 ft | 250° at 34 kt | +22 kt | -6 °C | 98 kt | 51 min | 10:26 pm EDT (02:26 UTC) |
| 18,000 ft FL180 | 250° at 37 kt | +25 kt | -8 °C | 95 kt | 52 min | 10:27 pm EDT (02:27 UTC) |
| 24,000 ft FL240 | 250° at 55 kt | +40 kt | -18 °C | 80 kt | 1 h 02 min | 10:37 pm EDT (02:37 UTC) |
| 30,000 ft FL300 | 250° at 65 kt | +47 kt | -33 °C | 73 kt | 1 h 08 min | 10:43 pm EDT (02:43 UTC) |
| 34,000 ft FL340 | 250° at 77 kt | +51 kt | -43 °C | 69 kt | 1 h 12 min | 10:47 pm EDT (02:47 UTC) |
| 39,000 ft FL390 | 250° at 100 kt | +67 kt | -56 °C | 53 kt | 1 h 34 min | 11:09 pm EDT (03:09 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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; 23 nm from the line | 200/23 | 190/21 5° | 260/23 5° | 270/20 0° | 250/29 -9° | 250/54 -19° | 250/71 -33° | 250/78 -43° | 250/105 -56° |
| BOS | used from 46 nm out; 18 nm from the line | 160/27 | 190/23 9° | 260/20 7° | 260/32 1° | 250/48 -7° | 240/56 -17° | 240/59 -33° | 250/75 -43° | 250/94 -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 |
|---|---|---|---|---|---|---|---|
| PWM Portland, ME | departure | VFR Sky: a broken layer at 11,000 feet Weather: light rain, mist | from the south-southwest (210°) at 3 knots | 6 mi | 11,000 ft | 75 ft | 8:51 pm EDT (00:51 UTC) |
| PSM Portsmouth, NH | 37 nm out, 9 nm west of the line, tower | marginal VFR Sky: a broken layer at 2,900 feet, overcast at 8,500 feet Weather: light rain | calm | 7 mi | 2,900 ft | 100 ft | 00:55 UTC |
| BVY Beverly, MA | 64 nm out, 5 nm southwest of the line, tower | IFR Sky: a broken layer at 600 feet, a broken layer at 2,500 feet, overcast at 3,900 feet Weather: rain, mist | from the east (080°) at 5 knots | 3 mi | 600 ft | 107 ft | 01:21 UTC |
| BOS Boston, MA | destination | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 2,400 feet, overcast at 3,500 feet Weather: heavy rain, mist | from the east (080°) at 8 knots | 3 mi | 2,400 ft | 19 ft | 8:54 pm EDT (00:54 UTC) |
The highest airport on this list sits at 107 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BOS when you get there the forecast at the estimated arrival, 10:21 pm EDT (02:21 UTC)
Wind from the east-southeast at 5 knots, visibility 3 miles, light rain, mist, overcast at 1,000 feet marginal VFR
The whole forecast for BOS
- From Sun 8:00 pm EDT (00:00 UTC): wind from the southeast at 4 knots, visibility 4 miles, heavy rain, mist, scattered clouds at 2,200 feet, a broken layer at 2,800 feet and more above
- From Sun 10:00 pm EDT (02:00 UTC): wind from the east-southeast at 5 knots, visibility 3 miles, light rain, mist, overcast at 1,000 feet
- From Sun 11:00 pm EDT (03:00 UTC): wind from the east at 6 knots, visibility 2 miles, light rain, mist, overcast at 800 feet
- From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 8 knots, visibility 2 miles, light rain showers, mist, overcast at 300 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north at 7 knots, visibility 3 miles, mist, a broken layer at 800 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 15,000 feet
- From Mon 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, scattered clouds at 4,500 feet
The forecast for PWM, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 5 knots, visibility more than 6 miles, a broken layer at 12,000 feet
- From Sun 10:00 pm EDT (02:00 UTC): wind light and variable, visibility more than 6 miles, light rain, overcast at 3,000 feet
- From Mon 2:00 am EDT (06:00 UTC): wind calm, visibility 4 miles, light rain, overcast at 600 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, a broken layer at 2,500 feet, overcast at 6,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a broken layer at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 19 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at PWM 6:03 pm EDT (22:03 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 UTC)). At 120 knots the arrival at BOS is after sunset there (6:08 pm EDT (22:08 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, General Edward Lawrence Logan International.