Plan a flight · Mon 1:14 am EDT (05:14 UTC)

General Edward Lawrence Logan International to South Bend International BOS → SBN

683 nautical miles (786 statute miles) west on a straight line, true course 272°, about 287° magnetic at the departure end (variation 15W). At 120 knots that is 5 h 50 min at the quickest height in today's winds (4,500 ft, a 3-knot headwind), arriving about 7:04 am EDT (11:04 UTC), after sunset at the destination. Right now BOS is IFR, wind from the north-northeast (030°) at 11 knots; SBN is VFR, wind calm. 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: 7 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 whole route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 307 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the first 79 nm of the route.
AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the route from 79 to 119 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 99 to 346 nm out.

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

urgent B39M at 35,000 ft, 16 nm north, 11:15 pm EDT (03:15 UTC): remarks: no inj/dmg zob. 406 nm along the route, 16 nm north of the line.
as filed, and in English
```
DKK UUA /OV DKK280040/TM 0315/FL350/TP B39M/TB MTN WVE ACTN +/-5KTS/RM NO INJ/DMG ZOB
```
Report
an urgent report filed through DKK
Where
40 nm west (280°) of DKK
Time
03:15 UTC
Height
at 35,000 ft
Aircraft
B39M
Turbulence
mountain wve actn a 5-knot loss of airspeed
Remarks
no inj/dmg zob
UAL932 at 35,000 ft, 50 nm east, 12:34 am EDT (04:34 UTC): moderate turbulence, wind 240° at 69 knots. At the departure end, 50 nm east of the line.
as filed, and in English
```
ARP UAL932 4206N 06957W 0434 F350 240/069KT TB MOD TURB IC
```
Report
a routine report filed through ARP
UAL932 at 35,000 ft, 47 nm east, 12:33 am EDT (04:33 UTC): moderate turbulence. At the departure end, 47 nm east of the line.
as filed, and in English
```
ARP UAL932 4206N 07001W 0433 F350 TB MODERATE SK CLEAR IC NONE
```
Report
a routine report filed through ARP
UAL330 at 35,000 ft, 35 nm north, 12:30 am EDT (04:30 UTC): moderate turbulence, wind 235° at 92 knots. 30 nm along the route, 35 nm north of the line.
as filed, and in English
```
ARP UAL330 4257N 07145W 0430 F350 235/092KT TB MOD TURB CONT MOD CHOP IC
```
Report
a routine report filed through ARP
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
CRJ7 descending, 34 nm north, 12:09 am EDT (04:09 UTC): a routine report with nothing remarked on. At the departure end, 34 nm north of the line.
as filed, and in English
```
MHT UA /OV RWY 6/TM 0409/FLDURD/TP CRJ7/SK 006
```
Report
a routine report filed through MHT
Where
runway 6
Time
04:09 UTC
Height
during the descent
Aircraft
CRJ7
Sky
at 600 ft
CRJ9 descending, 34 nm north, 11:16 pm EDT (03:16 UTC): a routine report with nothing remarked on. At the departure end, 34 nm north 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
B38M descending, 34 nm north, 10:53 pm EDT (02:53 UTC): overcast above 1,500 ft; scattered clouds above 500 ft. At the departure end, 34 nm north 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, 34 nm north, 10:14 pm EDT (02:14 UTC): remarks: mod-hvy precip. At the departure end, 34 nm north 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
B739 descending, 13 nm north, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. 544 nm along the route, 13 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
A320 descending, 13 nm north, 11:27 pm EDT (03:27 UTC): overcast above 1,400 ft. 544 nm along the route, 13 nm north of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0327/FLDURD/TP A320/SK 014 OVC
```
Report
a routine report filed through DTW
Where
over DTW
Time
03:27 UTC
Height
during the descent
Aircraft
A320
Sky
at 1,400 ft overcast
C560 at 3,000 ft, 40 nm north, 10:28 pm EDT (02:28 UTC): a routine report with nothing remarked on. 544 nm along the route, 40 nm north of the line.
as filed, and in English
```
PTK UA /OV 6 W/TM 0228/FL030/TP C560/SK BASES 019 TOPS 030 OVC
```
Report
a routine report filed through PTK
Where
6 west
Time
02:28 UTC
Height
at 3,000 ft
Aircraft
C560
Sky
bases 1,900 ft tops 3,000 ft overcast
C25B at 2,000 ft, 40 nm north, 10:18 pm EDT (02:18 UTC): a routine report with nothing remarked on. 544 nm along the route, 40 nm north of the line.
as filed, and in English
```
PTK UA /OV 2 W/TM 0218/FL020/TP C25B/SK BASES 020 OVC
```
Report
a routine report filed through PTK
Where
2 west
Time
02:18 UTC
Height
at 2,000 ft
Aircraft
C25B
Sky
bases 2,000 ft overcast
B738 at 1,300 ft, 22 nm south, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 574 nm along the route, 22 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
04:45 UTC
Height
at 1,300 ft
Aircraft
B738
Sky
overcast from 1,300 ft, tops 3,000 ft
Remarks
during the descent

2 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 7 forecast points nearest it (BOS, BDL, ALB, SYR, BUF, CLE, FWA). 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	330° at 7 kt	+3 kt		117 kt	5 h 50 min	7:04 am EDT (11:04 UTC)
6,500 ft	330° at 12 kt	+5 kt	11 °C	115 kt	5 h 56 min	7:10 am EDT (11:10 UTC)
8,500 ft	330° at 12 kt	+5 kt	8 °C	115 kt	5 h 56 min	7:10 am EDT (11:10 UTC)
10,500 ft	320° at 13 kt	+7 kt	5 °C	113 kt	6 h 03 min	7:17 am EDT (11:17 UTC)
12,500 ft	310° at 14 kt	+10 kt	1 °C	110 kt	6 h 13 min	7:27 am EDT (11:27 UTC)
14,500 ft	300° at 17 kt	+14 kt	-3 °C	106 kt	6 h 27 min	7:41 am EDT (11:41 UTC)
16,500 ft	300° at 21 kt	+17 kt	-7 °C	103 kt	6 h 38 min	7:52 am EDT (11:52 UTC)
18,000 ft FL180	300° at 24 kt	+20 kt	-10 °C	100 kt	6 h 50 min	8:04 am EDT (12:04 UTC)
24,000 ft FL240	290° at 27 kt	+24 kt	-21 °C	96 kt	7 h 07 min	8:21 am EDT (12:21 UTC)
30,000 ft FL300	290° at 34 kt	+29 kt	-36 °C	91 kt	7 h 30 min	8:44 am EDT (12:44 UTC)
34,000 ft FL340	280° at 44 kt	+40 kt	-43 °C	80 kt	8 h 32 min	9:46 am EDT (13:46 UTC)
39,000 ft FL390	280° at 43 kt	+39 kt	-50 °C	81 kt	8 h 26 min	9:40 am EDT (13:40 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; 25 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 49 nm out; 27 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°
ALB	used from 99 nm out; 21 nm from the line	120/9	270/8 10°	L/V 5°	260/9 1°	260/34 -10°	250/42 -22°	240/57 -35°	240/70 -42°	240/65 -50°
SYR	used from 198 nm out; 44 nm from the line	280/13	350/18 10°	340/10 6°	300/15 1°	280/17 -12°	270/16 -23°	280/25 -38°	250/40 -42°	240/53 -50°
BUF	used from 297 nm out; 43 nm from the line	320/10	010/16 10°	360/10 6°	340/13 2°	330/22 -11°	300/25 -23°	320/31 -38°	300/29 -44°	280/36 -50°
CLE	used from 396 nm out; 78 nm from the line	340/7	010/16 13°	350/18 8°	350/20 3°	340/31 -10°	340/46 -21°	340/54 -37°	330/62 -44°	340/65 -49°
FWA	used from 544 nm out; 86 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°

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 broken layer at 500 feet, a broken layer at 2,700 feet, overcast at 4,000 feet Weather: light rain, mist	from the north-northeast (030°) at 11 knots	4 mi	500 ft	19 ft	12:57 am EDT (04:57 UTC)
ORH Worcester, MA	40 nm out, 7 nm south of the line, tower	low IFR Sky: overcast at 200 feet Weather: rain, mist	from the north-northeast (030°) at 9 knots, gusting to 16	2.5 mi	200 ft	1,009 ft	05:05 UTC
CEF Springfield/Chicopee, MA	69 nm out, 12 nm south of the line, tower	VFR Sky: scattered clouds at 500 feet Weather: light rain, mist	from the north (010°) at 6 knots	6 mi	none	241 ft	04:55 UTC
OIC Norwich, NY	198 nm out, 11 nm north of the line	IFR Sky: scattered clouds at 400 feet, overcast at 900 feet	from the north-northeast (020°) at 5 knots	10+ mi	900 ft	1,024 ft	04:55 UTC
ITH Ithaca, NY	238 nm out, 9 nm northwest of the line, tower	IFR Sky: a broken layer at 13,000 feet Weather: mist	calm	1 mi	13,000 ft	1,099 ft	05:08 UTC
HTF Hornell, NY	297 nm out, 3 nm north of the line	no report just now				1,219 ft
ERI Erie, PA	406 nm out, 8 nm south of the line, tower	marginal VFR Sky: overcast at 3,000 feet	variable at 4 knots	10+ mi	3,000 ft	732 ft	00:51 UTC
HZY Ashtabula, OH	436 nm out, 25 nm south of the line	IFR Sky: scattered clouds at 1,600 feet, overcast at 2,800 feet Weather: mist	calm	1.75 mi	2,800 ft	926 ft	05:08 UTC
DTW Detroit, MI	544 nm out, 13 nm north of the line, tower	marginal VFR Sky: overcast at 1,200 feet	from the west (280°) at 3 knots	10+ mi	1,200 ft	645 ft	04:53 UTC
ARB Ann Arbor, MI	564 nm out, 16 nm north of the line, tower	reported, no category	calm		none	839 ft	04:53 UTC
IRS Sturgis, MI	643 nm out, 1 nm north of the line	IFR Weather: mist	from the south (180°) at 5 knots	2.5 mi	none	924 ft	04:55 UTC
SBN South Bend, IN	destination	VFR	calm	9 mi	none	798 ft	12:54 am EDT (04:54 UTC)

The highest airport on this list sits at 1,219 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SBN when you get there the forecast at the estimated arrival, 7:04 am EDT (11:04 UTC)

Wind from the south-southwest at 10 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for SBN

From Mon 12:00 am EDT (04:00 UTC): wind light and variable, visibility 2 miles, mist, clear skies
At times between Mon 12:00 am EDT (04:00 UTC) and 3:00 am EDT (07:00 UTC): visibility ½ mile, fog
From Mon 6:00 am EDT (10:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, clear skies
From Mon 4:00 pm EDT (20:00 UTC): wind from the south-southwest at 11 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 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 16 nm from the route, at the departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW

Daylight

Sunset at BOS 6:07 pm EDT (22:07 UTC), at SBN 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 UTC)). At 120 knots the arrival at SBN is before sunrise there (7:53 am EDT (11:53 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

Radar now, the Northeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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, South Bend International.