Plan a flight · Mon 8:08 am CDT (13:08 UTC)

Chicago Midway International to General Edward Lawrence Logan International MDW → BOS

746 nautical miles (858 statute miles) east on a straight line, true course 082°, about 086° magnetic at the departure end (variation 4W). At 120 knots that is 4 h 40 min at the quickest height in today's winds (39,000 ft, a 40-knot tailwind), arriving about 1:48 pm EDT (17:48 UTC). Right now MDW is VFR, wind from the south-southwest (210°) at 7 knots; BOS is IFR, wind from the north (350°) at 5 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: 2,679 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 last 627 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 358 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 428 to 656 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 MDW.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

BCS3 at 10,000 ft, 1 nm southeast, 5:15 am CDT (10:15 UTC): moderate turbulence from 7,000 ft to 9,000 ft, remarks: during the climb ssoxs aid. At the destination end, 1 nm southeast of the line.
as filed, and in English
```
BOS UA /OV BOS/TM 1015/FL100/TP BCS3/TB MOD 070-090/RM DURC SSOXS AID
```
Report
a routine report filed through BOS
Where
over BOS
Time
10:15 UTC
Height
at 10,000 ft
Aircraft
BCS3
Turbulence
moderate from 7,000 ft to 9,000 ft
Remarks
during the climb ssoxs aid
CRJ9 at 38,000 ft, 34 nm south, 6:06 am CDT (11:06 UTC): no turbulence. 40 nm along the route, 34 nm south of the line.
as filed, and in English
```
OXI UA /OV OXI/TM 1106/FL380/TP CRJ9/TB NEG
```
Report
a routine report filed through OXI
Where
over OXI
Time
11:06 UTC
Height
at 38,000 ft
Aircraft
CRJ9
Turbulence
none
A320 at 36,000 ft, 26 nm south, 6:25 am CDT (11:25 UTC): no turbulence. 70 nm along the route, 26 nm south of the line.
as filed, and in English
```
GSH UA /OV GSH/TM 1125/FL360/TP A320/TB NEG
```
Report
a routine report filed through GSH
Where
over GSH
Time
11:25 UTC
Height
at 36,000 ft
Aircraft
A320
Turbulence
none
B738 at 26,000 ft, 29 nm south, 7:21 am CDT (12:21 UTC): no turbulence from 25,000 ft to 26,000 ft. 90 nm along the route, 29 nm south of the line.
as filed, and in English
```
GSH UA /OV GSH090020/TM 1221/FL260/TP B738/TB NEG 260-250
```
Report
a routine report filed through GSH
Where
20 nm east (090°) of GSH
Time
12:21 UTC
Height
at 26,000 ft
Aircraft
B738
Turbulence
no from 26,000 ft to 25,000 ft
A320 at 30,000 ft, 45 nm south, 6:49 am CDT (11:49 UTC): light chop turbulence, remarks: during the descent FL300-260 FL250 better. 99 nm along the route, 45 nm south of the line.
as filed, and in English
```
ASW UA /OV OLK/TM 1149/FL300/TP A320/TB CONS LGT CHOP/RM DURD FL300-260 FL250 BETTER
```
Report
a routine report filed through ASW
Where
over OLK
Time
11:49 UTC
Height
at 30,000 ft
Aircraft
A320
Turbulence
continuous light chop
Remarks
during the descent FL300-260 FL250 better
P28A at 1,300 ft, 33 nm south, 8:00 am CDT (13:00 UTC): remarks: base 1,000 ft tops 1,300 ft runway 25 final. 179 nm along the route, 33 nm south of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1300/FL013/TP P28A/RM BASE 010 TOPS 013 RY25 FINAL
```
Report
a routine report filed through TOL
Where
over TOL
Time
13:00 UTC
Height
at 1,300 ft
Aircraft
P28A
Remarks
base 1,000 ft tops 1,300 ft runway 25 final
B738 climbing, 33 nm south, 7:19 am CDT (12:19 UTC): remarks: base 200 ft tops 1,200 ft. 179 nm along the route, 33 nm south of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1219/FLDURC/TP B738/RM BASE 002 TOPS 012
```
Report
a routine report filed through TOL
Where
over TOL
Time
12:19 UTC
Height
during the climb
Aircraft
B738
Remarks
base 200 ft tops 1,200 ft
BE58 climbing, 33 nm south, 6:34 am CDT (11:34 UTC): a routine report with nothing remarked on. 179 nm along the route, 33 nm south of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1134/FLDURC/TP BE58/SK B002 T018
```
Report
a routine report filed through TOL
Where
over TOL
Time
11:34 UTC
Height
during the climb
Aircraft
BE58
Sky
B002 T018
MD83 at 2,500 ft, 33 nm south, 5:43 am CDT (10:43 UTC): clear from 2,500 ft to 60,000 ft, remarks: base 1,000 ft tops 2,500 ft clear above. 179 nm along the route, 33 nm south of the line.
as filed, and in English
```
TOL UA /OV TOL/TM 1043/FL025/TP MD83/RM BASE 010 TOPS 025 CLEAR ABOVE
```
Report
a routine report filed through TOL
Where
over TOL
Time
10:43 UTC
Height
at 2,500 ft
Aircraft
MD83
Remarks
base 1,000 ft tops 2,500 ft clear above
C172 at 3,000 ft, 3 nm northwest, 7:41 am CDT (12:41 UTC): overcast from 1,000 ft to 1,500 ft; clear from 1,500 ft to 60,000 ft, dust storm. 189 nm along the route, 3 nm northwest of the line.
as filed, and in English
```
DTW UA /OV DXO 270010/TM 1241/FL030/TP C172/SK 010 OVC 015/WX VIS 1 MI BLO CLOUDS CLR ABV
```
Report
a routine report filed through DTW
Where
10 nm west (270°) of DXO
Time
12:41 UTC
Height
at 3,000 ft
Aircraft
C172
Sky
at 1,000 ft overcast at 1,500 ft
Weather
visibility, 1, shallow, below, cl ou dust storm, clear, above
B737 at 7,000 ft, 2 nm northwest, 7:22 am CDT (12:22 UTC): remarks: during the climb. 189 nm along the route, 2 nm northwest of the line.
as filed, and in English
```
DTW UA /OV 10 W DTW/TM 1222/FL070/TP B737/SK T014/RM DURC
```
Report
a routine report filed through DTW
Where
10 west dtw
Time
12:22 UTC
Height
at 7,000 ft
Aircraft
B737
Sky
T014
Remarks
during the climb
B722 at 6,000 ft, 11 nm south, 7:08 am CDT (12:08 UTC): a routine report with nothing remarked on. 189 nm along the route, 11 nm south of the line.
as filed, and in English
```
DTW UA /OV DXO210015/TM 1208/FL060/TP B722/SK TOPS 016
```
Report
a routine report filed through DTW
Where
15 nm southwest (210°) of DXO
Time
12:08 UTC
Height
at 6,000 ft
Aircraft
B722
Sky
tops 1,600 ft
CL35 at 6,000 ft, 29 nm north, 5:47 am CDT (10:47 UTC): overcast from 1,400 ft to 2,600 ft; clear from 2,600 ft to 60,000 ft, remarks: clear above 2,600 ft. 189 nm along the route, 29 nm north of the line.
as filed, and in English
```
PTK UA /OV PTK270006/TM 1047/FL060/TP CL35/SK OVC014-TOP026/RM CLEAR ABOVE 026
```
Report
a routine report filed through PTK
Where
6 nm west (270°) of PTK
Time
10:47 UTC
Height
at 6,000 ft
Aircraft
CL35
Sky
overcast from 1,400 ft, tops 2,600 ft
Remarks
clear above 2,600 ft
A320 at 2,000 ft, 4 nm west, 7:36 am CDT (12:36 UTC): a routine report with nothing remarked on. 199 nm along the route, 4 nm west of the line.
as filed, and in English
```
DTW UA /OV DXO228003/TM 1236/FL020/TP A320/SK B003 T015
```
Report
a routine report filed through DTW
Where
3 nm southwest (228°) of DXO
Time
12:36 UTC
Height
at 2,000 ft
Aircraft
A320
Sky
B003 T015

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 8 forecast points nearest it (JOT, FWA, CLE, BUF, SYR, ALB, BDL, 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
3,500 ft	310° at 12 kt	−9 kt		129 kt	5 h 47 min	2:55 pm EDT (18:55 UTC)
5,500 ft	330° at 15 kt	−8 kt		128 kt	5 h 50 min	2:58 pm EDT (18:58 UTC)
7,500 ft	330° at 15 kt	−8 kt	10 °C	128 kt	5 h 50 min	2:58 pm EDT (18:58 UTC)
9,500 ft	320° at 16 kt	−9 kt	7 °C	129 kt	5 h 47 min	2:55 pm EDT (18:55 UTC)
11,500 ft	320° at 18 kt	−12 kt	3 °C	132 kt	5 h 39 min	2:47 pm EDT (18:47 UTC)
13,500 ft	310° at 20 kt	−14 kt	0 °C	134 kt	5 h 34 min	2:42 pm EDT (18:42 UTC)
15,500 ft	310° at 22 kt	−15 kt	-4 °C	135 kt	5 h 32 min	2:40 pm EDT (18:40 UTC)
17,500 ft	310° at 24 kt	−17 kt	-8 °C	137 kt	5 h 27 min	2:35 pm EDT (18:35 UTC)
18,000 ft FL180	310° at 25 kt	−17 kt	-9 °C	137 kt	5 h 27 min	2:35 pm EDT (18:35 UTC)
24,000 ft FL240	310° at 26 kt	−19 kt	-21 °C	139 kt	5 h 22 min	2:30 pm EDT (18:30 UTC)
30,000 ft FL300	310° at 33 kt	−24 kt	-37 °C	144 kt	5 h 11 min	2:19 pm EDT (18:19 UTC)
34,000 ft FL340	300° at 45 kt	−36 kt	-44 °C	156 kt	4 h 47 min	1:55 pm EDT (17:55 UTC)
39,000 ft FL390	300° at 51 kt	−40 kt	-52 °C	160 kt	4 h 40 min	1:48 pm EDT (17:48 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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
JOT	used from 0 nm out; 48 nm from the line	250/25	260/22 14°	250/17 9°	270/21 5°	280/28 -8°	280/36 -20°	270/41 -35°	280/57 -42°	290/65 -50°
FWA	used from 50 nm out; 71 nm from the line	270/20	300/16 15°	290/14 10°	280/17 3°	290/25 -7°	280/30 -19°	280/34 -35°	290/48 -44°	300/64 -52°
CLE	used from 199 nm out; 63 nm from the line	310/7	350/20 14°	340/16 9°	320/21 2°	320/32 -8°	330/34 -20°	330/45 -36°	320/60 -45°	320/64 -51°
BUF	used from 348 nm out; 45 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°
SYR	used from 448 nm out; 62 nm from the line	330/17	320/14 9°	350/18 8°	350/26 2°	340/25 -11°	360/34 -22°	350/43 -39°	330/50 -46°	350/50 -54°
ALB	used from 547 nm out; 53 nm from the line	340/22	340/19 9°	320/16 7°	330/16 2°	330/19 -11°	320/21 -23°	320/25 -39°	280/30 -44°	270/41 -51°
BDL	used from 646 nm out; 29 nm from the line	020/15	010/19 10°	340/10 7°	300/17 3°	280/23 -10°	250/35 -22°	250/44 -38°	250/55 -42°	250/57 -51°
BOS	used from 696 nm out; 25 nm from the line	020/10	360/20 10°	340/19 7°	290/21 2°	270/35 -9°	260/42 -22°	250/55 -38°	240/75 -43°	250/72 -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
MDW Chicago, IL	departure	VFR Sky: a few clouds at 20,000 feet, scattered clouds at 25,000 feet	from the south-southwest (210°) at 7 knots	10+ mi	none	619 ft	7:53 am CDT (12:53 UTC)
SBN South Bend, IN	60 nm out, 14 nm south of the line, tower	VFR	from the south (190°) at 4 knots	10+ mi	none	798 ft	12:54 UTC
JXN Jackson, MI	149 nm out, 10 nm north of the line, tower	VFR	from the south-southwest (200°) at 5 knots	10+ mi	none	1,000 ft	12:56 UTC
DTW Detroit, MI	199 nm out, 2 nm northwest of the line, tower	low IFR Sky: overcast at 400 feet Weather: mist	from the southwest (220°) at 11 knots	2 mi	400 ft	645 ft	12:53 UTC
ERI Erie, PA	338 nm out, 16 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
DKK Dunkirk, NY	378 nm out, 7 nm north of the line	marginal VFR Sky: overcast at 1,200 feet	from the west (260°) at 7 knots	10+ mi	1,200 ft	692 ft	12:53 UTC
ITH Ithaca, NY	507 nm out, 4 nm northwest of the line, tower	low IFR Sky: overcast at 300 feet Weather: mist	from the west-northwest (300°) at 4 knots	4 mi	300 ft	1,099 ft	12:56 UTC
BGM Binghamton, NY	527 nm out, 14 nm south of the line, tower	low IFR Sky: overcast at 400 feet	from the northwest (310°) at 5 knots	10+ mi	400 ft	1,635 ft	13:03 UTC
BAF Westfield/Springfield, MA	666 nm out, 16 nm south of the line, tower	VFR Sky: scattered clouds at 2,400 feet	from the north-northeast (020°) at 3 knots	10+ mi	none	270 ft	12:53 UTC
ORH Worcester, MA	706 nm out, 8 nm south of the line, tower	VFR Sky: scattered clouds at 400 feet	from the north-northeast (020°) at 8 knots	10+ mi	none	1,009 ft	12:54 UTC
BOS Boston, MA	destination	IFR Sky: overcast at 700 feet	from the north (350°) at 5 knots	10+ mi	700 ft	19 ft	9:01 am EDT (13:01 UTC)

The highest airport on this list sits at 1,635 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, 1:48 pm EDT (17:48 UTC)

Wind from the north at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet VFR

At times between Mon 1:00 pm EDT (17:00 UTC) and 3:00 pm EDT (19:00 UTC): a broken layer at 3,000 feet marginal VFR

The whole forecast for BOS

From Mon 8:00 am EDT (12:00 UTC): wind from the north at 9 knots, visibility 6 miles, mist, overcast at 600 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north at 9 knots, visibility more than 6 miles, overcast at 1,500 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet
At times between Mon 1:00 pm EDT (17:00 UTC) and 3:00 pm EDT (19:00 UTC): a broken layer at 3,000 feet
From Tue 12:00 am EDT (04:00 UTC): wind from the northeast at 10 knots, visibility more than 6 miles, overcast at 3,000 feet
From Tue 6:00 am EDT (10:00 UTC): wind from the east-northeast at 10 knots, visibility more than 6 miles, light rain, overcast at 800 feet

The forecast for MDW, the departure

From Mon 7:00 am CDT (12:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southwest at 13 knots, gusting to 24, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 6:00 pm CDT (23:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, a few clouds at 12,000 feet
From Mon 10:00 pm CDT (03:00 UTC): wind from the southwest at 11 knots, visibility more than 6 miles, low-level wind shear, a few clouds at 10,000 feet
From Tue 5:00 am CDT (10:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, a few clouds at 20,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8992 Monroe, MI, Thursday, October 15, 2026 Local 10 nm from the route, 199 nm along the route · a VIP movement · starts Thursday 15 October · ZOB
6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 16 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW

Daylight

Sunset at MDW 6:14 pm CDT (23:14 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 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 upper Mississippi valley · loop National Weather Service

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

Radar now, the Northeast · 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: Chicago Midway International, General Edward Lawrence Logan International.