General Edward Lawrence Logan International to Harrisburg International BOS → MDT
290 nautical miles (334 statute miles) southwest on a straight line, true course 245°, about 260° magnetic at the departure end (variation 15W). At 120 knots that is 2 h 29 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 1:59 am EDT (05:59 UTC), after sunset at the destination. Right now BOS is IFR, wind from the east-northeast (060°) at 12 knots; MDT is IFR, wind from the northwest (320°) at 4 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: 707 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). Near the route, 107 nm along the route.
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 39 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 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 ZULU 1C: moderate icing up to 25,000 ft. Over the first 39 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 TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 271 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the destination end.
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 BOS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A333 at 15,000 ft, 44 nm north, 9:37 pm EDT (01:37 UTC): moderate chop turbulence up to 15,000 ft, remarks: during the climb. At the departure end, 44 nm north of the line.
as filed, and in English
PSM UA /OV PSM/TM 0137/FL150/TP A333/TB MOD CHOP BLO 150/RM DURC
- Report
- a routine report filed through PSM
- Where
- over PSM
- Time
- 01:37 UTC
- Height
- at 15,000 ft
- Aircraft
- A333
- Turbulence
- moderate chop below 15,000 ft
- Remarks
- during the climb
- 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 departure 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
- GLF4 at 10,000 ft, 23 nm north, 9:03 pm EDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. 58 nm along the route, 23 nm north of the line.
as filed, and in English
BDL UA /OV CEF060010/TM 0103/FL100/TP GLF4/WX -RA/TB MOD 100/RM IMC
- Report
- a routine report filed through BDL
- Where
- 10 nm northeast (060°) of CEF
- Time
- 01:03 UTC
- Height
- at 10,000 ft
- Aircraft
- GLF4
- Weather
- light rain
- Turbulence
- moderate at 10,000 ft
- Remarks
- instrument conditions
- BCS3 at 4,000 ft, 34 nm south, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 116 nm along the route, 34 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
- B38M at 6,000 ft, 29 nm southeast, 8:47 pm EDT (00:47 UTC): moderate turbulence. 174 nm along the route, 29 nm southeast 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
- A21N at 18,000 ft, 24 nm southeast, 8:38 pm EDT (00:38 UTC): moderate clear-air turbulence. 242 nm along the route, 24 nm southeast of the line.
as filed, and in English
PTW UA /OV PTW/TM 0038/FL180/TP A21N/TB MOD CAT
- Report
- a routine report filed through PTW
- Where
- over PTW
- Time
- 00:38 UTC
- Height
- at 18,000 ft
- Aircraft
- A21N
- Turbulence
- moderate clear-air turbulence
- E145 at 12,000 ft, 14 nm south, 8:43 pm EDT (00:43 UTC): moderate turbulence. 271 nm along the route, 14 nm south of the line.
as filed, and in English
LNS UA /OV LRP/TM 0043/FL120/TP E145/TB CONS MOD
- Report
- a routine report filed through LNS
- Where
- over LRP
- Time
- 00:43 UTC
- Height
- at 12,000 ft
- Aircraft
- E145
- Turbulence
- continuous moderate
- UAL1558 at 30,000 ft, 43 nm west, 10:22 pm EDT (02:22 UTC): moderate turbulence, -36 °C, wind 240° at 50 knots. At the destination end, 43 nm west of the line.
as filed, and in English
ARP UAL1558 4014N 07742W 0222 F300 MS36 240/050KT TB MODERATE SK CLEAR IC NONE
- Report
- a routine report filed through ARP
- CRJ9 descending, 39 nm northwest, 11:16 pm EDT (03:16 UTC): a routine report with nothing remarked on. At the departure end, 39 nm northwest of the line.
as filed, and in English
MHT UA /OV RWY 6/TM 0316/FLDURD/TP CRJ9/SK 004
- Report
- a routine report filed through MHT
- Where
- runway 6
- Time
- 03:16 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- at 400 ft
- B738 at 300 ft, 0 nm south, 11:00 pm EDT (03:00 UTC): a broken layer above 500 ft, remarks: during the descent runway 4R bos. At the departure end, 0 nm south of the line.
as filed, and in English
BOS UA /OV KBOS/TM 0300/FL003/TP B738/SK BKN005/RM DURD RY 4R BOS
- Report
- a routine report filed through BOS
- Where
- over KBOS
- Time
- 03:00 UTC
- Height
- at 300 ft
- Aircraft
- B738
- Sky
- a broken layer from 500 ft
- Remarks
- during the descent runway 4R bos
- B38M descending, 39 nm northwest, 10:53 pm EDT (02:53 UTC): overcast above 1,500 ft; scattered clouds above 500 ft. At the departure end, 39 nm northwest of the line.
as filed, and in English
MHT UA /OV RWY 17/TM 0253/FLDURD/TP B38M/SK 015 OVC / 005 SCT
- Report
- a routine report filed through MHT
- Where
- runway 17
- Time
- 02:53 UTC
- Height
- during the descent
- Aircraft
- B38M
- Sky
- at 1,500 ft overcast; at 500 ft scattered
- B38M descending, 39 nm northwest, 10:14 pm EDT (02:14 UTC): remarks: mod-hvy precip. At the departure end, 39 nm northwest of the line.
as filed, and in English
MHT UA /OV RWY 17/TM 0214/FLDURD/TP B38M/SK 015/RM MOD-HVY PRECIP
- Report
- a routine report filed through MHT
- Where
- runway 17
- Time
- 02:14 UTC
- Height
- during the descent
- Aircraft
- B38M
- Sky
- at 1,500 ft
- Remarks
- mod-hvy precip
- UAL42 at 35,000 ft, 11 nm northeast, 10:02 pm EDT (02:02 UTC): light turbulence, -45 °C, wind 256° at 85 knots. At the departure end, 11 nm northeast of the line.
as filed, and in English
ARP UAL42 4232N 07054W 0202 F350 MS45 256/085KT TB LIGHT SK ON TOP IC NONE
- Report
- a routine report filed through ARP
- 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 departure 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
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 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 (BOS, BDL, JFK, AVP). 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 4 kt | +3 kt | 117 kt | 2 h 29 min | 1:59 am EDT (05:59 UTC) | |
| 6,500 ft | 270° at 15 kt | +12 kt | 11 °C | 108 kt | 2 h 41 min | 2:11 am EDT (06:11 UTC) |
| 8,500 ft | 270° at 21 kt | +19 kt | 9 °C | 101 kt | 2 h 52 min | 2:22 am EDT (06:22 UTC) |
| 10,500 ft | 260° at 25 kt | +24 kt | 6 °C | 96 kt | 3 h 01 min | 2:31 am EDT (06:31 UTC) |
| 12,500 ft | 250° at 28 kt | +28 kt | 2 °C | 92 kt | 3 h 09 min | 2:39 am EDT (06:39 UTC) |
| 14,500 ft | 250° at 31 kt | +31 kt | -2 °C | 89 kt | 3 h 16 min | 2:46 am EDT (06:46 UTC) |
| 16,500 ft | 250° at 34 kt | +34 kt | -7 °C | 86 kt | 3 h 22 min | 2:52 am EDT (06:52 UTC) |
| 18,000 ft FL180 | 250° at 36 kt | +36 kt | -11 °C | 84 kt | 3 h 27 min | 2:57 am EDT (06:57 UTC) |
| 24,000 ft FL240 | 230° at 44 kt | +43 kt | -21 °C | 77 kt | 3 h 46 min | 3:16 am EDT (07:16 UTC) |
| 30,000 ft FL300 | 230° at 70 kt | +69 kt | -33 °C | 51 kt | 5 h 41 min | 5:11 am EDT (09:11 UTC) |
| 34,000 ft FL340 | 230° at 85 kt | +83 kt | -41 °C | 37 kt | 7 h 50 min | 7:20 am EDT (11:20 UTC) |
| 39,000 ft FL390 | 230° at 77 kt | +76 kt | -51 °C | 44 kt | 6 h 35 min | 6:05 am EDT (10:05 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOS | used from 0 nm out; 24 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 48 nm out; 11 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 145 nm out; 41 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° |
| AVP | used from 194 nm out; 38 nm from the line | 150/5 | 350/13 12° | 270/20 8° | 260/17 4° | 260/25 -11° | 240/31 -22° | 240/54 -35° | 230/61 -41° | 240/55 -49° |
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 |
|---|---|---|---|---|---|---|---|
| BOS Boston, MA | departure | IFR Sky: a few clouds at 700 feet, a broken layer at 1,700 feet, overcast at 4,100 feet Weather: heavy rain, mist | from the east-northeast (060°) at 12 knots | 2.5 mi | 1,700 ft | 19 ft | 11:10 pm EDT (03:10 UTC) |
| ORH Worcester, MA | 39 nm out, 11 nm north of the line, tower | low IFR Sky: overcast at 200 feet Weather: light rain, mist | from the northeast (040°) at 11 knots, gusting to 17 | 3 mi | 200 ft | 1,009 ft | 03:23 UTC |
| HFD Hartford, CT | 77 nm out, 6 nm southwest of the line, tower | marginal VFR Sky: scattered clouds at 500 feet, overcast at 1,800 feet Weather: rain, mist | from the north (350°) at 10 knots | 6 mi | 1,800 ft | 18 ft | 02:53 UTC |
| OXC Oxford, CT | 107 nm out, 7 nm south of the line, tower | IFR Sky: overcast at 600 feet Weather: light rain | from the north-northeast (030°) at 10 knots, gusting to 19 | 9 mi | 600 ft | 730 ft | 02:56 UTC |
| DXR Danbury, CT | 126 nm out, 6 nm southeast of the line, tower | IFR Sky: overcast at 700 feet Weather: light rain, mist | from the north-northeast (030°) at 6 knots | 2.5 mi | 700 ft | 456 ft | 02:53 UTC |
| CDW Caldwell, NJ | 174 nm out, 17 nm southeast of the line, tower | marginal VFR Sky: a few clouds at 700 feet, a broken layer at 1,200 feet, overcast at 2,000 feet Weather: mist | from the northeast (040°) at 4 knots | 6 mi | 1,200 ft | 172 ft | 03:11 UTC |
| ABE Allentown, PA | 223 nm out, 4 nm south of the line, tower | marginal VFR Sky: scattered clouds at 800 feet, overcast at 1,700 feet | from the northeast (050°) at 12 knots | 10+ mi | 1,700 ft | 393 ft | 03:00 UTC |
| RDG Reading, PA | 252 nm out, 8 nm south of the line, tower | IFR Sky: overcast at 800 feet Weather: mist | from the northeast (040°) at 9 knots | 4 mi | 800 ft | 343 ft | 02:54 UTC |
| MDT Harrisburg, PA | destination | IFR Sky: overcast at 800 feet | from the northwest (320°) at 4 knots | 9 mi | 800 ft | 310 ft | 11:25 pm EDT (03:25 UTC) |
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 MDT when you get there the forecast at the estimated arrival, 1:59 am EDT (05:59 UTC)
Wind from the northeast at 3 knots, visibility more than 6 miles, light rain showers, overcast at 800 feet IFR
The whole forecast for MDT
- From Sun 11:00 pm EDT (03:00 UTC): wind from the northeast at 3 knots, visibility more than 6 miles, light rain showers, overcast at 800 feet
- From Mon 2:00 am EDT (06:00 UTC): wind from the north at 7 knots, visibility 4 miles, mist, scattered clouds at 700 feet, overcast at 1,200 feet
- From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 10 knots, visibility 6 miles, mist, scattered clouds at 1,500 feet, overcast at 4,000 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 2,500 feet, overcast at 4,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, a broken layer at 4,000 feet
The forecast for BOS, the departure
- 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
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 9 nm from the route, 19 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZBW
- 6/7153 North Sicuate, RI, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 14 nm from the route, 39 nm along the route · drones kept away from a public gathering · until 12 October · ZBW
Daylight
Sunset at BOS 6:07 pm EDT (22:07 UTC), at MDT 6:32 pm EDT (22:32 UTC) (civil twilight ends 6:59 pm EDT (22:59 UTC)). At 120 knots the arrival at MDT is before sunrise there (7:14 am EDT (11:14 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: General Edward Lawrence Logan International, Harrisburg International.