Plan a flight · Mon 6:58 am EDT (10:58 UTC)

Patrick Leahy Burlington International to Martin State Airport BTV → MTN

342 nautical miles (393 statute miles) southwest on a straight line, true course 206°, about 221° magnetic at the departure end (variation 15W). At 120 knots that is 2 h 30 min at the quickest height in today's winds (4,500 ft, a 17-knot tailwind), arriving about 9:28 am EDT (13:28 UTC). Right now BTV is marginal VFR, wind calm; MTN is marginal VFR, wind from the north-northwest (340°) at 6 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 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 24,000 ft to 33,000 ft. Over the whole route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 215 nm of 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 BTV.

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

urgent SF50 descending, 46 nm southeast, 6:50 am EDT (10:50 UTC): light turbulence, overcast above 1,200 ft, remarks: during the descent runway 5. 224 nm along the route, 46 nm southeast of the line.
as filed, and in English
```
MMU UUA /OV MMU/TM 1050/FLDURD/TP SF50/SK OVC012/TB LGT/RM DURD RWY 5
```
Report
an urgent report filed through MMU
Where
over MMU
Time
10:50 UTC
Height
during the descent
Aircraft
SF50
Sky
overcast from 1,200 ft
Turbulence
light
Remarks
during the descent runway 5
E75S at 15,000 ft, 7 nm east, 6:35 am EDT (10:35 UTC): moderate turbulence, remarks: dca arrival from 12,000 ft to 15,000 ft during the descent. At the destination end, 7 nm east of the line.
as filed, and in English
```
BWI UA /OV BAL060030/TM 1035/FL150/TP E75S/TB MOD/RM DCA ARRIVAL 120-150 DURD
```
Report
a routine report filed through BWI
Where
30 nm northeast (060°) of BAL
Time
10:35 UTC
Height
at 15,000 ft
Aircraft
E75S
Turbulence
moderate
Remarks
dca arrival from 12,000 ft to 15,000 ft during the descent
E170 at 23,000 ft, 40 nm east, 6:28 am EDT (10:28 UTC): moderate turbulence above 23,000 ft. At the destination end, 40 nm east of the line.
as filed, and in English
```
DOV UA /OV ENO/TM 1028/FLF230/TP E170/TB MOD 230
```
Report
a routine report filed through DOV
Where
over ENO
Time
10:28 UTC
Height
at F230
Aircraft
E170
Turbulence
moderate at 23,000 ft
MULT at 36,000 ft, 32 nm east, 6:34 am EDT (10:34 UTC): light turbulence from 23,000 ft to 32,000 ft. 88 nm along the route, 32 nm east of the line.
as filed, and in English
```
ALB UA /OV CAM/TM 1034/FL360/TP MULT/TB LGT 320-230
```
Report
a routine report filed through ALB
Where
over CAM
Time
10:34 UTC
Height
at 36,000 ft
Aircraft
MULT
Turbulence
light from 32,000 ft to 23,000 ft
B738 climbing, 26 nm southeast, 6:33 am EDT (10:33 UTC): remarks: during the climb runway 01 ilg bases 700 ft. 303 nm along the route, 26 nm southeast of the line.
as filed, and in English
```
ILG UA /OV KILG/TM 1033/FLDURC/TP B738/RM DURC RY01 ILG BASES 007
```
Report
a routine report filed through ILG
Where
over KILG
Time
10:33 UTC
Height
during the climb
Aircraft
B738
Remarks
during the climb runway 01 ilg bases 700 ft
B739 at 20,000 ft, 26 nm southeast, 6:05 am EDT (10:05 UTC): light rime icing, -10 °C. 303 nm along the route, 26 nm southeast of the line.
as filed, and in English
```
ILG UA /OV DQO/TM 1005/FL200/TP B739/TA M10/IC LGT RIME
```
Report
a routine report filed through ILG
Where
over DQO
Time
10:05 UTC
Height
at 20,000 ft
Aircraft
B739
Temperature
−10 °C
Icing
light rime
B737 at 700 ft, 15 nm southwest, 5:33 am EDT (09:33 UTC): remarks: light rain. At the destination end, 15 nm southwest of the line.
as filed, and in English
```
BWI UA /OV BWI/TM 0933/FL007/TP B737/RM LIGHT RAIN
```
Report
a routine report filed through BWI
Where
over BWI
Time
09:33 UTC
Height
at 700 ft
Aircraft
B737
Remarks
light rain

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 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 3 forecast points nearest it (ALB, AVP, 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
4,500 ft	360° at 19 kt	−17 kt		137 kt	2 h 30 min	9:28 am EDT (13:28 UTC)
6,500 ft	360° at 18 kt	−16 kt	10 °C	136 kt	2 h 31 min	9:29 am EDT (13:29 UTC)
8,500 ft	350° at 16 kt	−12 kt	7 °C	132 kt	2 h 35 min	9:33 am EDT (13:33 UTC)
10,500 ft	340° at 17 kt	−12 kt	4 °C	132 kt	2 h 35 min	9:33 am EDT (13:33 UTC)
12,500 ft	340° at 18 kt	−13 kt	1 °C	133 kt	2 h 34 min	9:32 am EDT (13:32 UTC)
14,500 ft	330° at 18 kt	−11 kt	-3 °C	131 kt	2 h 37 min	9:35 am EDT (13:35 UTC)
16,500 ft	330° at 19 kt	−10 kt	-8 °C	130 kt	2 h 38 min	9:36 am EDT (13:36 UTC)
18,000 ft FL180	320° at 19 kt	−8 kt	-11 °C	128 kt	2 h 40 min	9:38 am EDT (13:38 UTC)
24,000 ft FL240	320° at 20 kt	−8 kt	-23 °C	128 kt	2 h 40 min	9:38 am EDT (13:38 UTC)
30,000 ft FL300	310° at 23 kt	−5 kt	-37 °C	125 kt	2 h 44 min	9:42 am EDT (13:42 UTC)
34,000 ft FL340	280° at 27 kt	+6 kt	-43 °C	114 kt	3 h	9:58 am EDT (13:58 UTC)
39,000 ft FL390	270° at 35 kt	+14 kt	-50 °C	106 kt	3 h 14 min	10:12 am EDT (14:12 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
ALB	used from 0 nm out; 83 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°
AVP	used from 146 nm out; 52 nm from the line	010/20	020/24 11°	360/19 8°	350/23 2°	320/24 -11°	330/25 -22°	330/27 -37°	310/28 -42°	290/30 -50°
ACY	used from 293 nm out; 76 nm from the line	350/12	340/12 11°	340/12 6°	340/13 2°	270/10 -10°	240/17 -23°	230/46 -33°	230/46 -40°	240/46 -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
BTV Burlington, VT	departure	marginal VFR Sky: overcast at 1,800 feet	calm	10+ mi	1,800 ft	334 ft	6:54 am EDT (10:54 UTC)
GFL Glens Falls, NY	68 nm out, 12 nm southeast of the line	VFR Sky: overcast at 3,300 feet	calm	8 mi	3,300 ft	328 ft	10:53 UTC
SCH Schenectady, NY	98 nm out, 13 nm southeast of the line, tower	marginal VFR Sky: a broken layer at 1,100 feet, overcast at 2,000 feet Weather: rain	from the northeast (040°) at 4 knots	7 mi	1,100 ft	377 ft	00:51 UTC
MSV Monticello, NY	185 nm out, 9 nm east of the line	marginal VFR Sky: overcast at 2,600 feet	from the west-northwest (300°) at 6 knots	10+ mi	2,600 ft	1,403 ft	10:56 UTC
ABE Allentown, PA	254 nm out, 8 nm east of the line, tower	marginal VFR Sky: overcast at 1,300 feet	from the north-northwest (330°) at 4 knots	10+ mi	1,300 ft	393 ft	10:51 UTC
RDG Reading, PA	273 nm out, 8 nm west of the line, tower	marginal VFR Sky: overcast at 1,500 feet	from the northwest (320°) at 4 knots	10+ mi	1,500 ft	343 ft	10:54 UTC
EVY Middletown, DE	322 nm out, 25 nm east of the line	no report just now				69 ft
MTN Baltimore, MD	destination	marginal VFR Sky: overcast at 1,100 feet	from the north-northwest (340°) at 6 knots	10+ mi	1,100 ft	22 ft	6:45 am EDT (10:45 UTC)

The highest airport on this list sits at 1,403 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MTN when you get there the forecast at the estimated arrival, 9:28 am EDT (13:28 UTC)

Wind from the north at 5 knots, visibility more than 6 miles, overcast at 1,100 feet marginal VFR

The whole forecast for MTN

From Mon 6:00 am EDT (10:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, overcast at 1,100 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 10 knots, gusting to 19, visibility more than 6 miles, overcast at 1,200 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the west-northwest at 10 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the west-northwest at 7 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

The forecast for BTV, the departure

From Mon 5:00 am EDT (09:00 UTC): wind calm, visibility 6 miles, mist, overcast at 1,400 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 3 miles, light rain, mist, overcast at 300 feet
From Mon 9:00 am EDT (13:00 UTC): wind calm, visibility more than 6 miles, a broken layer at 2,100 feet
From Mon 1:00 pm EDT (17:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the north at 6 knots, visibility 6 miles, mist, overcast at 1,900 feet

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

4/9383 WASHINGTON, DC., USA 10 nm from the route, at the destination end · security · ZDC
6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 9 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZDC

Daylight

Sunset at BTV 6:13 pm EDT (22:13 UTC), at MTN 6:31 pm EDT (22:31 UTC) (civil twilight ends 6:58 pm EDT (22:58 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: Patrick Leahy Burlington International, Martin State Airport.