Plan a flight · Sun 8:29 pm EDT (00:29 UTC)

Washington Dulles International to Trenton Mercer Airport IAD → TTN

146 nautical miles (168 statute miles) northeast on a straight line, true course 056°, about 066° magnetic at the departure end (variation 10W). At 120 knots that is 43 min at the quickest height in today's winds (39,000 ft, a 83-knot tailwind), arriving about 9:12 pm EDT (01:12 UTC), after sunset at the destination. Right now IAD is IFR, wind from the north (010°) at 7 knots; TTN is IFR, wind from the east-northeast (060°) at 12 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: 3 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 E16E: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 25 knots, until 9:55 pm EDT (01:55 UTC). Over the last 127 nm of the route.

as issued

WSUS31 KKCI 112355
MKCE WST 112355
CONVECTIVE SIGMET 16E
VALID UNTIL 0155Z
NY NJ PA DE MD VA DC WV AND NJ NY CSTL WTRS
FROM SAX-30SE JFK-10N DCA-60ENE EKN-SAX
AREA EMBD TS MOV FROM 22025KT. TOPS TO FL320.

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 29 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 97 nm of the route.
AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, 107 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 25,000 ft, 13 nm southeast, 6:25 pm EDT (22:25 UTC): moderate turbulence. 127 nm along the route, 13 nm southeast of the line.
as filed, and in English
```
TEB UA /OV 3958N 07457W/TM 2225/FL250/TP B38M/TB MOD
```
Report
a routine report filed through TEB
Where
3958N 07457W
Time
22:25 UTC
Height
at 25,000 ft
Aircraft
B38M
Turbulence
moderate
CRJ7 at 15,000 ft, 30 nm east, 8:07 pm EDT (00:07 UTC): moderate chop turbulence. At the destination end, 30 nm east of the line.
as filed, and in English
```
BLM UA /OV COL/TM 0007/FL150/TP CRJ7/TB MOD CHOP
```
Report
a routine report filed through BLM
Where
over COL
Time
00:07 UTC
Height
at 15,000 ft
Aircraft
CRJ7
Turbulence
moderate chop
CL60 descending, 15 nm south, 7:30 pm EDT (23:30 UTC): overcast above 500 ft. At the departure end, 15 nm south of the line.
as filed, and in English
```
IAD UA /OV HEF160001/TM 2330/FLDURD/TP CL60/SK OVC 005
```
Report
a routine report filed through IAD
Where
1 nm south (160°) of HEF
Time
23:30 UTC
Height
during the descent
Aircraft
CL60
Sky
overcast from 500 ft
CL60 at 500 ft, 14 nm south, 7:30 pm EDT (23:30 UTC): overcast above 500 ft, remarks: during the descent. At the departure end, 14 nm south of the line.
as filed, and in English
```
HEF UA /OV KHEF150001/TM 2330/FL005/TP CL60/SK OVC005/RM DURD
```
Report
a routine report filed through HEF
Where
1 nm southeast (150°) of KHEF
Time
23:30 UTC
Height
at 500 ft
Aircraft
CL60
Sky
overcast from 500 ft
Remarks
during the descent
B39M at 2,000 ft, 5 nm northwest, 7:03 pm EDT (23:03 UTC): overcast above 700 ft. At the departure end, 5 nm northwest of the line.
as filed, and in English
```
IAD UA /OV AML320005/TM 2303/FL020/TP B39M/SK BASES OVC 007
```
Report
a routine report filed through IAD
Where
5 nm northwest (320°) of AML
Time
23:03 UTC
Height
at 2,000 ft
Aircraft
B39M
Sky
bases overcast at 700 ft
A319 descending, 0 nm northeast, 6:25 pm EDT (22:25 UTC): overcast above 700 ft, light rain. At the departure end, 0 nm northeast of the line.
as filed, and in English
```
IAD UA /OV RWY 1R/TM 2225/FLDURD/TP A319/SK OVC 007/WX 4SM W/ -RA
```
Report
a routine report filed through IAD
Where
runway 1R
Time
22:25 UTC
Height
during the descent
Aircraft
A319
Sky
overcast from 700 ft
Weather
4SM, west, light rain
BE58 at 3,000 ft, 3 nm west, 6:22 pm EDT (22:22 UTC): a routine report with nothing remarked on. At the departure end, 3 nm west of the line.
as filed, and in English
```
IAD UA /OV AML300003/TM 2222/FL030/TP BE58/SK BASES009 OVC
```
Report
a routine report filed through IAD
Where
3 nm northwest (300°) of AML
Time
22:22 UTC
Height
at 3,000 ft
Aircraft
BE58
Sky
BASES009 overcast
A319 descending, 16 nm southeast, 8:02 pm EDT (00:02 UTC): a routine report with nothing remarked on. 10 nm along the route, 16 nm southeast of the line.
as filed, and in English
```
DCA UA /OV RWY 1 DEPARTURE/TM 0002/FLDURC/TP A319/SK BASES 500 FT
```
Report
a routine report filed through DCA
Where
runway 1 departure
Time
00:02 UTC
Height
during the climb
Aircraft
A319
Sky
bases 50,000 ft ft
CRJ9 at 7,000 ft, 4 nm southeast, 7:17 pm EDT (23:17 UTC): overcast from 500 ft to 7,200 ft. 10 nm along the route, 4 nm southeast of the line.
as filed, and in English
```
DCA UA /OV DCA320012/TM 2317/FL070/TP CRJ9/SK BASES 005 OVC TOPS 072
```
Report
a routine report filed through DCA
Where
12 nm northwest (320°) of DCA
Time
23:17 UTC
Height
at 7,000 ft
Aircraft
CRJ9
Sky
bases 500 ft overcast tops 7,200 ft
C17 at 500 ft, 22 nm southeast, 7:42 pm EDT (23:42 UTC): overcast above 500 ft. 19 nm along the route, 22 nm southeast of the line.
as filed, and in English
```
KADW UA /OV RWY 1L ARR/TM 2342/FL005/TP C17/SK OVC005
```
Report
a routine report filed through KADW
Where
runway 1L arrival
Time
23:42 UTC
Height
at 500 ft
Aircraft
C17
Sky
overcast from 500 ft
B737 at 1,000 ft, 22 nm southeast, 6:47 pm EDT (22:47 UTC): overcast above 500 ft. 19 nm along the route, 22 nm southeast of the line.
as filed, and in English
```
KADW UA /OV 1L DEP/TM 2247/FL010/TP B737/SK OVC005
```
Report
a routine report filed through KADW
Where
1L departure
Time
22:47 UTC
Height
at 1,000 ft
Aircraft
B737
Sky
overcast from 500 ft
B738 at 7,000 ft, 4 nm southeast, 7:40 pm EDT (23:40 UTC): overcast above 40,000 ft, remarks: top 6,500 ft. 29 nm along the route, 4 nm southeast of the line.
as filed, and in English
```
BWI UA /OV BAL280010/TM 2340/FL070/TP B738/SK OVC004/RM TOP 065
```
Report
a routine report filed through BWI
Where
10 nm west (280°) of BAL
Time
23:40 UTC
Height
at 7,000 ft
Aircraft
B738
Sky
overcast from 400 ft
Remarks
top 6,500 ft
A21N at 600 ft, 9 nm southeast, 8:23 pm EDT (00:23 UTC): a broken layer above 600 ft. 39 nm along the route, 9 nm southeast of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0023/FL006/TP A21N/SK BKN006
```
Report
a routine report filed through BWI
Where
over BWI
Time
00:23 UTC
Height
at 600 ft
Aircraft
A21N
Sky
a broken layer from 600 ft
B763 at 500 ft, 9 nm southeast, 7:50 pm EDT (23:50 UTC): a broken layer above 500 ft. 39 nm along the route, 9 nm southeast of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 2350/FL005/TP B763/SK BKN005
```
Report
a routine report filed through BWI
Where
over BWI
Time
23:50 UTC
Height
at 500 ft
Aircraft
B763
Sky
a broken layer from 500 ft

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 2 forecast points nearest it (RIC, ACY). 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 20 kt	−18 kt		138 kt	1 h 03 min	9:32 pm EDT (01:32 UTC)
5,500 ft	220° at 23 kt	−22 kt		142 kt	1 h 02 min	9:31 pm EDT (01:31 UTC)
7,500 ft	220° at 27 kt	−26 kt	13 °C	146 kt	1 h	9:29 pm EDT (01:29 UTC)
9,500 ft	220° at 31 kt	−30 kt	10 °C	150 kt	58 min	9:27 pm EDT (01:27 UTC)
11,500 ft	220° at 30 kt	−29 kt	7 °C	149 kt	59 min	9:28 pm EDT (01:28 UTC)
13,500 ft	220° at 33 kt	−32 kt	3 °C	152 kt	58 min	9:27 pm EDT (01:27 UTC)
15,500 ft	230° at 36 kt	−36 kt	-2 °C	156 kt	56 min	9:25 pm EDT (01:25 UTC)
17,500 ft	230° at 40 kt	−39 kt	-6 °C	159 kt	55 min	9:24 pm EDT (01:24 UTC)
18,000 ft FL180	230° at 41 kt	−40 kt	-7 °C	160 kt	55 min	9:24 pm EDT (01:24 UTC)
24,000 ft FL240	230° at 57 kt	−56 kt	-17 °C	176 kt	50 min	9:19 pm EDT (01:19 UTC)
30,000 ft FL300	230° at 75 kt	−74 kt	-30 °C	194 kt	45 min	9:14 pm EDT (01:14 UTC)
34,000 ft FL340	230° at 82 kt	−81 kt	-41 °C	201 kt	44 min	9:13 pm EDT (01:13 UTC)
39,000 ft FL390	230° at 84 kt	−83 kt	-53 °C	203 kt	43 min	9:12 pm EDT (01:12 UTC)

Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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; 101 nm from the line	190/33	200/29 14°	210/31 12°	210/38 6°	230/42 -7°	230/68 -16°	220/84 -29°	220/86 -40°	220/81 -52°
ACY	used from 49 nm out; 73 nm from the line	230/15	230/22 15°	230/31 11°	230/27 6°	230/40 -7°	230/51 -17°	230/71 -31°	230/81 -41°	230/86 -53°

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 700 feet Weather: mist	from the north (010°) at 7 knots	5 mi	700 ft	312 ft	7:52 pm EDT (23:52 UTC)
BWI Baltimore, MD	39 nm out, 9 nm southeast of the line, tower	IFR Sky: overcast at 500 feet Weather: light drizzle, mist	from the northeast (040°) at 8 knots	2.5 mi	500 ft	143 ft	00:13 UTC
MTN Baltimore, MD	49 nm out, 9 nm southeast of the line, tower	IFR Sky: overcast at 500 feet	calm	7 mi	500 ft	22 ft	23:44 UTC
PHL Philadelphia, PA	117 nm out, 10 nm southeast of the line, tower	IFR Sky: a broken layer at 600 feet, a broken layer at 900 feet, overcast at 2,600 feet Weather: light rain, mist	from the northeast (040°) at 9 knots	3 mi	600 ft	35 ft	00:03 UTC
TTN Trenton, NJ	destination	IFR Sky: a broken layer at 800 feet, overcast at 1,700 feet	from the east-northeast (060°) at 12 knots	9 mi	800 ft	212 ft	7:53 pm EDT (23:53 UTC)

The highest airport on this list sits at 312 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At TTN when you get there the forecast at the estimated arrival, 9:12 pm EDT (01:12 UTC)

Wind from the northeast at 12 knots, gusting to 19, visibility 3 miles, light rain, mist, overcast at 800 feet IFR

At times between Sun 8:00 pm EDT (00:00 UTC) and 11:00 pm EDT (03:00 UTC): visibility 2 miles, rain, mist IFR

The whole forecast for TTN

From Sun 8:00 pm EDT (00:00 UTC): wind from the northeast at 12 knots, gusting to 19, visibility 3 miles, light rain, mist, overcast at 800 feet
At times between Sun 8:00 pm EDT (00:00 UTC) and 11:00 pm EDT (03:00 UTC): visibility 2 miles, rain, mist
From Sun 11:00 pm EDT (03:00 UTC): wind from the north at 8 knots, visibility 5 miles, light rain, mist, overcast at 500 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north at 10 knots, visibility 5 miles, mist, overcast at 800 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north at 10 knots, visibility more than 6 miles, overcast at 2,500 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, overcast at 5,000 feet
From Mon 6:00 pm EDT (22:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for IAD, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the north at 7 knots, visibility 4 miles, light rain showers, mist, overcast at 700 feet
From Sun 10:00 pm EDT (02:00 UTC): wind from the north-northwest at 6 knots, visibility 2 miles, rain showers, mist, overcast at 400 feet
From Mon 4:00 am EDT (08:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility 4 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 1 nm from the route, 10 nm along the route · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 10 nm along the route · a VIP movement · today · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 6 nm from the route, 39 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 TTN 6:24 pm EDT (22:24 UTC) (civil twilight ends 6:51 pm EDT (22:51 UTC)). At 120 knots the arrival at TTN is after sunset there (6:25 pm EDT (22:25 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, Trenton Mercer Airport.