Plan a flight · Sun 11:38 pm EDT (03:38 UTC)

Washington Dulles International to Portland International Jetport IAD → PWM

428 nautical miles (493 statute miles) northeast on a straight line, true course 047°, about 057° magnetic at the departure end (variation 10W). At 120 knots that is 2 h 01 min at the quickest height in today's winds (34,000 ft, a 92-knot tailwind), arriving about 1:39 am EDT (05:39 UTC), after sunset at the destination. Right now IAD is IFR, wind from the north (350°) at 12 knots; PWM is marginal VFR, wind from the north (360°) at 3 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: 2,261 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 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 first 149 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.

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, 249 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.

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 first 388 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 route from 70 to 388 nm out.
AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the last 139 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, 368 nm along 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 IAD.

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

B38M at 20,000 ft, 20 nm west, 11:11 pm EDT (03:11 UTC): moderate clear-air turbulence from 20,000 ft to 25,000 ft. At the departure end, 20 nm west of the line.
as filed, and in English
```
IAD UA /OV AML300020/TM 0311/FL200/TP B38M/TB MOD CAT 200-250
```
Report
a routine report filed through IAD
Where
20 nm northwest (300°) of AML
Time
03:11 UTC
Height
at 20,000 ft
Aircraft
B38M
Turbulence
moderate clear-air turbulence from 20,000 ft to 25,000 ft
E145 at 12,000 ft, 15 nm northwest, 8:43 pm EDT (00:43 UTC): moderate turbulence. 90 nm along the route, 15 nm northwest 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
E75L at 20,000 ft, 27 nm southeast, 8:41 pm EDT (00:41 UTC): moderate turbulence above 20,000 ft. 90 nm along the route, 27 nm southeast of the line.
as filed, and in English
```
ILG UA /OV DQO/TM 0041/FL200/TP E75L/TB MOD 200
```
Report
a routine report filed through ILG
Where
over DQO
Time
00:41 UTC
Height
at 20,000 ft
Aircraft
E75L
Turbulence
moderate at 20,000 ft
A319 at 23,000 ft, 47 nm southeast, 11:21 pm EDT (03:21 UTC): moderate turbulence. 139 nm along the route, 47 nm southeast of the line.
as filed, and in English
```
MJX UA /OV CYN345010/TM 0321/FL230/TP A319/TB MOD
```
Report
a routine report filed through MJX
Where
10 nm north (345°) of CYN
Time
03:21 UTC
Height
at 23,000 ft
Aircraft
A319
Turbulence
moderate
B38M at 6,000 ft, 25 nm southeast, 8:47 pm EDT (00:47 UTC): moderate turbulence. 179 nm along the route, 25 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
BCS3 at 4,000 ft, 44 nm southeast, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 229 nm along the route, 44 nm southeast 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
GLF4 at 10,000 ft, 4 nm southeast, 9:03 pm EDT (01:03 UTC): moderate turbulence above 10,000 ft, light rain, remarks: instrument conditions. 309 nm along the route, 4 nm southeast 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
A333 at 15,000 ft, 12 nm southeast, 9:37 pm EDT (01:37 UTC): moderate chop turbulence up to 15,000 ft, remarks: during the climb. 388 nm along the route, 12 nm southeast 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
B38M at 400 ft, 17 nm southeast, 9:15 pm EDT (01:15 UTC): overcast above 40,000 ft. At the departure end, 17 nm southeast of the line.
as filed, and in English
```
DCA UA /OV DCA/TM 0115/FL004/TP B38M/SK OVC004
```
Report
a routine report filed through DCA
Where
over DCA
Time
01:15 UTC
Height
at 400 ft
Aircraft
B38M
Sky
overcast from 400 ft
A320 at 2,000 ft, 20 nm southeast, 9:46 pm EDT (01:46 UTC): a broken layer from 30,000 ft to 4,500 ft, remarks: CONLE5 sid. 30 nm along the route, 20 nm southeast of the line.
as filed, and in English
```
BWI UA /OV BAL180005/TM 0146/FL020/TP A320/SK BKN003-TOP045/RM CONLE5 SID
```
Report
a routine report filed through BWI
Where
5 nm south (180°) of BAL
Time
01:46 UTC
Height
at 2,000 ft
Aircraft
A320
Sky
a broken layer from 300 ft, tops 4,500 ft
Remarks
CONLE5 sid
B738 at 2,000 ft, 15 nm southeast, 9:43 pm EDT (01:43 UTC): a broken layer from 40,000 ft to 7,200 ft, remarks: TERPZ8 sid. 30 nm along the route, 15 nm southeast of the line.
as filed, and in English
```
BWI UA /OV BAL260003/TM 0143/FL20/TP B738/SK BKN004-TOP072/RM TERPZ8 SID
```
Report
a routine report filed through BWI
Where
3 nm west (260°) of BAL
Time
01:43 UTC
Height
at 2,000 ft
Aircraft
B738
Sky
a broken layer from 400 ft, tops 7,200 ft
Remarks
TERPZ8 sid
B712 descending, 16 nm southeast, 11:10 pm EDT (03:10 UTC): remarks: light rain light chop bases 50,000 ft ft. 40 nm along the route, 16 nm southeast of the line.
as filed, and in English
```
BWI UA /OV RWY 15R/TM 0310/FLDURD/TP B712/RM LIGHT RAIN. LIGHT CHOP. BASES 500 FT
```
Report
a routine report filed through BWI
Where
runway 15R
Time
03:10 UTC
Height
during the descent
Aircraft
B712
Remarks
light rain light chop bases 50,000 ft ft
C25B at 800 ft, 36 nm northwest, 9:41 pm EDT (01:41 UTC): remarks: bases 800 ft. 70 nm along the route, 36 nm northwest of the line.
as filed, and in English
```
MDT UA /OV CXY/TM 0141/FL008/TP C25B/RM BASES 008
```
Report
a routine report filed through MDT
Where
over CXY
Time
01:41 UTC
Height
at 800 ft
Aircraft
C25B
Remarks
bases 800 ft
CL30 at 500 ft, 27 nm southeast, 9:55 pm EDT (01:55 UTC): remarks: during the descent runway 09 approach lights in sight at 550FT. 90 nm along the route, 27 nm southeast of the line.
as filed, and in English
```
ILG UA /OV KILG/TM 0155/FL005/TP CL30/RM DURD RWY09 APPROACH LIGHTS IN SIGHT AT 550FT
```
Report
a routine report filed through ILG
Where
over KILG
Time
01:55 UTC
Height
at 500 ft
Aircraft
CL30
Remarks
during the descent runway 09 approach lights in sight at 550FT

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 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 7 forecast points nearest it (RIC, ACY, AVP, JFK, BDL, BOS, PWM). 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	210° at 8 kt	−7 kt		127 kt	3 h 22 min	3:00 am EDT (07:00 UTC)
5,500 ft	260° at 14 kt	−13 kt		133 kt	3 h 13 min	2:51 am EDT (06:51 UTC)
7,500 ft	260° at 20 kt	−18 kt	11 °C	138 kt	3 h 06 min	2:44 am EDT (06:44 UTC)
9,500 ft	250° at 24 kt	−23 kt	7 °C	143 kt	3 h	2:38 am EDT (06:38 UTC)
11,500 ft	240° at 28 kt	−27 kt	4 °C	147 kt	2 h 55 min	2:33 am EDT (06:33 UTC)
13,500 ft	240° at 31 kt	−30 kt	0 °C	150 kt	2 h 51 min	2:29 am EDT (06:29 UTC)
15,500 ft	240° at 34 kt	−33 kt	-4 °C	153 kt	2 h 48 min	2:26 am EDT (06:26 UTC)
17,500 ft	240° at 37 kt	−36 kt	-9 °C	156 kt	2 h 45 min	2:23 am EDT (06:23 UTC)
18,000 ft FL180	240° at 38 kt	−37 kt	-10 °C	157 kt	2 h 44 min	2:22 am EDT (06:22 UTC)
24,000 ft FL240	230° at 48 kt	−48 kt	-20 °C	168 kt	2 h 33 min	2:11 am EDT (06:11 UTC)
30,000 ft FL300	230° at 77 kt	−77 kt	-32 °C	197 kt	2 h 10 min	1:48 am EDT (05:48 UTC)
34,000 ft FL340	230° at 92 kt	−92 kt	-41 °C	212 kt	2 h 01 min	1:39 am EDT (05:39 UTC)
39,000 ft FL390	230° at 80 kt	−80 kt	-51 °C	200 kt	2 h 08 min	1:46 am EDT (05:46 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
RIC	used from 0 nm out; 104 nm from the line	270/23	280/19 11°	270/18 8°	240/22 4°	230/39 -7°	220/55 -18°	220/75 -30°	230/83 -39°	230/64 -50°
ACY	used from 50 nm out; 81 nm from the line	220/19	220/18 14°	210/36 9°	210/35 5°	220/36 -8°	240/49 -21°	220/90 -31°	230/103 -40°	230/81 -50°
AVP	used from 100 nm out; 60 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°
JFK	used from 149 nm out; 44 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°
BDL	used from 249 nm out; 15 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°
BOS	used from 349 nm out; 44 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°
PWM	used from 398 nm out; 15 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°

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
IAD Washington, DC	departure	IFR Sky: overcast at 800 feet	from the north (350°) at 12 knots	9 mi	800 ft	312 ft	11:30 pm EDT (03:30 UTC)
BWI Baltimore, MD	40 nm out, 16 nm southeast of the line, tower	low IFR Sky: overcast at 400 feet Weather: mist	from the east-northeast (060°) at 8 knots	5 mi	400 ft	143 ft	02:54 UTC
MTN Baltimore, MD	50 nm out, 17 nm southeast of the line, tower	IFR Sky: overcast at 500 feet Weather: rain	from the north-northeast (030°) at 3 knots	5 mi	500 ft	22 ft	03:15 UTC
LNS Lancaster, PA	90 nm out, 15 nm northwest of the line, tower	IFR Sky: overcast at 700 feet	from the northeast (040°) at 9 knots	9 mi	700 ft	402 ft	02:53 UTC
ABE Allentown, PA	139 nm out, 12 nm northwest 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
MMU Morristown, NJ	179 nm out, 13 nm southeast of the line, tower	IFR Sky: overcast at 800 feet Weather: light drizzle	from the north (010°) at 5 knots	3 mi	800 ft	186 ft	03:15 UTC
POU Poughkeepsie, NY	229 nm out, 9 nm northwest of the line, tower	IFR Sky: a broken layer at 600 feet, a broken layer at 1,000 feet, overcast at 2,100 feet Weather: mist	from the north (360°) at 5 knots	5 mi	600 ft	163 ft	03:01 UTC
BAF Westfield/Springfield, MA	289 nm out, 2 nm east of the line, tower	IFR Sky: overcast at 600 feet Weather: light rain, mist	from the north (010°) at 9 knots	3 mi	600 ft	270 ft	03:25 UTC
ORH Worcester, MA	319 nm out, 21 nm southeast 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
MHT Manchester, NH	359 nm out, 5 nm east of the line, tower	marginal VFR Sky: a few clouds at 400 feet, overcast at 1,500 feet Weather: light rain, mist	from the north-northeast (020°) at 4 knots	4 mi	1,500 ft	266 ft	02:53 UTC
PSM Portsmouth, NH	388 nm out, 12 nm southeast of the line, tower	IFR Sky: overcast at 800 feet Weather: rain, mist	from the north (350°) at 5 knots	1.5 mi	800 ft	100 ft	02:55 UTC
PWM Portland, ME	destination	marginal VFR Sky: overcast at 2,800 feet Weather: light rain	from the north (360°) at 3 knots	10+ mi	2,800 ft	75 ft	11:02 pm EDT (03:02 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 PWM when you get there the forecast at the estimated arrival, 1:39 am EDT (05:39 UTC)

Wind light and variable, visibility more than 6 miles, light rain, overcast at 3,000 feet marginal VFR

The whole forecast for PWM

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

The forecast for IAD, the departure

From Sun 11:00 pm EDT (03:00 UTC): wind from the north-northwest at 10 knots, visibility 3 miles, light rain showers, mist, overcast at 600 feet
From Mon 6:00 am EDT (10:00 UTC): wind from the north-northwest at 11 knots, gusting to 19, visibility more than 6 miles, overcast at 1,400 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 13 knots, gusting to 21, visibility more than 6 miles, overcast at 2,100 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility more than 6 miles, a broken layer at 4,000 feet
From Mon 7:00 pm EDT (23:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

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

4/9383 WASHINGTON, DC., USA 3 nm from the route, at the departure end · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the departure end · a VIP movement · today · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 11 nm from the route, 40 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at IAD 6:36 pm EDT (22:36 UTC), at PWM 6:03 pm EDT (22:03 UTC) (civil twilight ends 6:32 pm EDT (22:32 UTC)). At 120 knots the arrival at PWM is before sunrise there (6:51 am EDT (10:51 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, 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: Washington Dulles International, Portland International Jetport.