Plan a flight · Mon 4:05 am EDT (08:05 UTC)

Portland International Jetport to Detroit Metro Wayne County PWM → DTW

579 nautical miles (667 statute miles) west on a straight line, true course 266°, about 281° magnetic at the departure end (variation 15W). At 120 knots that is 4 h 54 min at the quickest height in today's winds (6,500 ft, a 2-knot headwind), arriving about 8:59 am EDT (12:59 UTC). Right now PWM is marginal VFR, wind from the northeast (040°) at 3 knots; DTW is IFR, wind from the west (260°) at 7 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: 1,307 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, fog). Over the whole route.
AIRMET ZULU 1C: moderate icing from 12,000 ft to 24,000 ft. Over the first 120 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 180 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 40 to 250 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 PWM.

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

B763 descending, 39 nm south, 2:21 am EDT (06:21 UTC): overcast above 40,000 ft. 50 nm along the route, 39 nm south of the line.
as filed, and in English
```
MHT UA /OV KMHT/TM 0621/FLDURD/TP B763/SK OVC004
```
Report
a routine report filed through MHT
Where
over KMHT
Time
06:21 UTC
Height
during the descent
Aircraft
B763
Sky
overcast from 400 ft
B763 descending, 39 nm south, 1:55 am EDT (05:55 UTC): a routine report with nothing remarked on. 50 nm along the route, 39 nm south of the line.
as filed, and in English
```
MHT UA /OV RWY 35/TM 0555/FLDURD/TP B763/SK 004-005 FT
```
Report
a routine report filed through MHT
Where
runway 35
Time
05:55 UTC
Height
during the descent
Aircraft
B763
Sky
from 400 ft to 500 ft ft
A359 at 37,000 ft, 45 nm north, 2:18 am EDT (06:18 UTC): light to moderate chop turbulence. 250 nm along the route, 45 nm north of the line.
as filed, and in English
```
ART UA /OV ART/TM 0618/FL370/TP A359/TB CONS LGT OCNL MOD CHOP
```
Report
a routine report filed through ART
Where
over ART
Time
06:18 UTC
Height
at 37,000 ft
Aircraft
A359
Turbulence
continuous light occasional moderate chop
B738 at 1,700 ft, 43 nm southwest, 2:20 am EDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. At the destination end, 43 nm southwest of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
06:20 UTC
Height
at 1,700 ft
Aircraft
B738
Sky
overcast from 1,700 ft, tops 2,000 ft
Remarks
during the descent
A333 descending, 0 nm south, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. At the destination end, 0 nm south of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B738 at 1,800 ft, 43 nm southwest, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. At the destination end, 43 nm southwest of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb

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 6 forecast points nearest it (PWM, BML, ALB, SYR, BUF, CLE). 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 8 kt	+3 kt		117 kt	4 h 57 min	9:02 am EDT (13:02 UTC)
6,500 ft	340° at 12 kt	+2 kt	9 °C	118 kt	4 h 54 min	8:59 am EDT (12:59 UTC)
8,500 ft	330° at 9 kt	+3 kt	7 °C	117 kt	4 h 57 min	9:02 am EDT (13:02 UTC)
10,500 ft	320° at 10 kt	+5 kt	4 °C	115 kt	5 h 02 min	9:07 am EDT (13:07 UTC)
12,500 ft	310° at 12 kt	+8 kt	1 °C	112 kt	5 h 10 min	9:15 am EDT (13:15 UTC)
14,500 ft	300° at 15 kt	+11 kt	-3 °C	109 kt	5 h 19 min	9:24 am EDT (13:24 UTC)
16,500 ft	300° at 18 kt	+14 kt	-8 °C	106 kt	5 h 28 min	9:33 am EDT (13:33 UTC)
18,000 ft FL180	300° at 21 kt	+17 kt	-11 °C	103 kt	5 h 37 min	9:42 am EDT (13:42 UTC)
24,000 ft FL240	280° at 27 kt	+24 kt	-22 °C	96 kt	6 h 02 min	10:07 am EDT (14:07 UTC)
30,000 ft FL300	280° at 32 kt	+29 kt	-37 °C	91 kt	6 h 22 min	10:27 am EDT (14:27 UTC)
34,000 ft FL340	270° at 43 kt	+41 kt	-43 °C	79 kt	7 h 20 min	11:25 am EDT (15:25 UTC)
39,000 ft FL390	270° at 45 kt	+43 kt	-50 °C	77 kt	7 h 31 min	11:36 am EDT (15:36 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; 25 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°
BML	used from 50 nm out; 72 nm from the line	260/22	300/13 8°	280/13 4°	260/13 0°	260/16 -11°	240/45 -21°	240/59 -36°	240/77 -44°	240/83 -53°
ALB	used from 100 nm out; 51 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 200 nm out; 31 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 300 nm out; 46 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 449 nm out; 79 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°

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	marginal VFR Sky: a few clouds at 300 feet, overcast at 3,400 feet Weather: light rain, mist	from the northeast (040°) at 3 knots	4 mi	3,400 ft	75 ft	3:51 am EDT (07:51 UTC)
LCI Laconia, NH	50 nm out, 2 nm east of the line	IFR Sky: a broken layer at 800 feet, a broken layer at 1,300 feet, overcast at 3,300 feet Weather: light rain	calm	10+ mi	800 ft	545 ft	07:56 UTC
LEB Lebanon, NH	90 nm out, 7 nm northeast of the line, tower	VFR Sky: a few clouds at 100 feet, a broken layer at 9,000 feet, overcast at 11,000 feet Weather: light rain	calm	9 mi	9,000 ft	603 ft	07:53 UTC
RUT Rutland, VT	120 nm out, 6 nm northeast of the line	marginal VFR Sky: a few clouds at 100 feet, a broken layer at 2,400 feet Weather: light rain	from the south (180°) at 3 knots	10+ mi	2,400 ft	787 ft	07:56 UTC
RME Rome, NY	220 nm out, 4 nm southwest of the line, tower	VFR Sky: overcast at 3,100 feet	calm	10+ mi	3,100 ft	504 ft	07:53 UTC
SYR Syracuse, NY	260 nm out, 7 nm southeast of the line, tower	marginal VFR Sky: a few clouds at 600 feet, overcast at 1,800 feet	calm	10+ mi	1,800 ft	421 ft	07:54 UTC
ROC Rochester, NY	320 nm out, 6 nm northwest of the line, tower	VFR Sky: a broken layer at 3,900 feet, overcast at 6,000 feet Weather: mist	calm	6 mi	3,900 ft	558 ft	07:54 UTC
BUF Buffalo, NY	370 nm out, 3 nm northwest of the line, tower	VFR Sky: overcast at 3,200 feet	from the west-southwest (240°) at 3 knots	10+ mi	3,200 ft	726 ft	07:54 UTC
CYQS St Thomas,	479 nm out, 12 nm north of the line	no report just now				776 ft
DET Detroit, MI	559 nm out, 9 nm northwest of the line, tower	marginal VFR Sky: overcast at 1,000 feet	from the west (260°) at 4 knots	10+ mi	1,000 ft	624 ft	07:53 UTC
DTW Detroit, MI	destination	IFR Sky: overcast at 800 feet	from the west (260°) at 7 knots	10+ mi	800 ft	645 ft	3:53 am EDT (07:53 UTC)

The highest airport on this list sits at 787 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At DTW when you get there the forecast at the estimated arrival, 8:59 am EDT (12:59 UTC)

Wind from the south-southwest at 4 knots, visibility 5 miles, mist, a broken layer at 25,000 feet marginal VFR

At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 1 mile, mist, a broken layer at 300 feet low IFR

The whole forecast for DTW

From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,500 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the south-southwest at 4 knots, visibility 5 miles, mist, a broken layer at 25,000 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 1 mile, mist, a broken layer at 300 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 9,000 feet, a broken layer at 20,000 feet

The forecast for PWM, the departure

From Mon 2:00 am EDT (06:00 UTC): wind from the north-northeast at 3 knots, visibility 4 miles, light rain, overcast at 2,500 feet
From Mon 7:00 am EDT (11:00 UTC): wind from the west-northwest at 3 knots, visibility 6 miles, mist, overcast at 1,500 feet
From Mon 10:30 am EDT (14:30 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 10:00 pm EDT (02:00 UTC): wind from the north-northeast at 12 knots, gusting to 22, visibility 6 miles, mist, a broken layer at 2,500 feet

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at PWM 6:03 pm EDT (22:03 UTC), at DTW 6:56 pm EDT (22:56 UTC) (civil twilight ends 7:24 pm EDT (23:24 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: Portland International Jetport, Detroit Metro Wayne County.