Plan a flight · Mon 9:58 am EDT (13:58 UTC)

Patrick Leahy Burlington International to Portland International Jetport BTV → PWM

132 nautical miles (152 statute miles) east on a straight line, true course 111°, about 126° magnetic at the departure end (variation 15W). At 120 knots that is 47 min at the quickest height in today's winds (39,000 ft, a 49-knot tailwind), arriving about 10:45 am EDT (14:45 UTC). Right now BTV is low IFR, wind calm; PWM is low IFR, wind variable 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 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 first 76 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 104 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the last 123 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

P212 at 6,000 ft, 45 nm west, 8:12 am EDT (12:12 UTC): remarks: during the climb KSLK. At the departure end, 45 nm west of the line.
as filed, and in English
```
SLK UA /OV SLK/TM 1212/FL060/TP P212/SK BASE 003-004/RM DURC KSLK
```
Report
a routine report filed through SLK
Where
over SLK
Time
12:12 UTC
Height
at 6,000 ft
Aircraft
P212
Sky
base from 300 ft to 400 ft
Remarks
during the climb KSLK
B38M at 39,000 ft, 45 nm west, 7:19 am EDT (11:19 UTC): no turbulence. At the departure end, 45 nm west of the line.
as filed, and in English
```
SLK UA /OV SLK/TM 1119/FL390/TP B38M/TB NEG
```
Report
a routine report filed through SLK
Where
over SLK
Time
11:19 UTC
Height
at 39,000 ft
Aircraft
B38M
Turbulence
none
CRJ7 at 600 ft, 10 nm southwest, 7:09 am EDT (11:09 UTC): no turbulence, remarks: during the climb. At the departure end, 10 nm southwest of the line.
as filed, and in English
```
BTV UA /OV 5 SW BTV/TM 1109/FL006/TP CRJ7/SK BASES 006 TOPS 045/TB NEG/RM DURC
```
Report
a routine report filed through BTV
Where
5 southwest btv
Time
11:09 UTC
Height
at 600 ft
Aircraft
CRJ7
Sky
bases 600 ft tops 4,500 ft
Turbulence
none
Remarks
during the climb
CRJ9 at 7,000 ft, 13 nm southwest, 7:55 am EDT (11:55 UTC): no turbulence. 9 nm along the route, 13 nm southwest of the line.
as filed, and in English
```
BTV UA /OV 10 S BTV/TM 1155/FL070/TP CRJ9/SK TOPS 040/TB SMOOTH INC
```
Report
a routine report filed through BTV
Where
10 south btv
Time
11:55 UTC
Height
at 7,000 ft
Aircraft
CRJ9
Sky
tops 4,000 ft
Turbulence
smooth inc
P212 at 4,300 ft, 50 nm south, 9:38 am EDT (13:38 UTC): a routine report with nothing remarked on. 28 nm along the route, 50 nm south of the line.
as filed, and in English
```
RUT UA /OV RUT/TM 1338/FL043/TP P212/SK TOP 043
```
Report
a routine report filed through RUT
Where
over RUT
Time
13:38 UTC
Height
at 4,300 ft
Aircraft
P212
Sky
top 4,300 ft
PC12 at 10,000 ft, 50 nm south, 7:53 am EDT (11:53 UTC): remarks: base 1,600 ft above sea level during the climb rut. 28 nm along the route, 50 nm south of the line.
as filed, and in English
```
RUT UA /OV KRUT/TM 1153/FL100/TP PC12/SK BASE 009/RM BASE 016 MSL DURC RUT
```
Report
a routine report filed through RUT
Where
over KRUT
Time
11:53 UTC
Height
at 10,000 ft
Aircraft
PC12
Sky
base 900 ft
Remarks
base 1,600 ft above sea level during the climb rut
PAY1 at 3,400 ft, 11 nm southwest, 9:34 am EDT (13:34 UTC): a routine report with nothing remarked on. 38 nm along the route, 11 nm southwest of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 1334/FL034/TP PAY1/SK BASE 003 TOP 034
```
Report
a routine report filed through MPV
Where
over MPV
Time
13:34 UTC
Height
at 3,400 ft
Aircraft
PAY1
Sky
base 300 ft top 3,400 ft
E170 at 34,000 ft, 11 nm southwest, 7:12 am EDT (11:12 UTC): no turbulence. 38 nm along the route, 11 nm southwest of the line.
as filed, and in English
```
MPV UA /OV MPV/TM 1112/FL340/TP E170/TB NEG
```
Report
a routine report filed through MPV
Where
over MPV
Time
11:12 UTC
Height
at 34,000 ft
Aircraft
E170
Turbulence
none
BCS3 at 200 ft, 0 nm south, 7:07 am EDT (11:07 UTC): a routine report with nothing remarked on. At the destination end, 0 nm south of the line.
as filed, and in English
```
PWM UA /OV PWM/TM 1107/FL002/TP BCS3/SK BASE 002
```
Report
a routine report filed through PWM
Where
over PWM
Time
11:07 UTC
Height
at 200 ft
Aircraft
BCS3
Sky
base 200 ft

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 2 forecast points nearest it (BML, 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	310° at 16 kt	−15 kt		135 kt	59 min	10:57 am EDT (14:57 UTC)
5,500 ft	320° at 10 kt	−8 kt		128 kt	1 h 02 min	11:00 am EDT (15:00 UTC)
7,500 ft	320° at 9 kt	−8 kt	7 °C	128 kt	1 h 02 min	11:00 am EDT (15:00 UTC)
9,500 ft	330° at 12 kt	−10 kt	5 °C	130 kt	1 h 01 min	10:59 am EDT (14:59 UTC)
11,500 ft	330° at 18 kt	−14 kt	1 °C	134 kt	59 min	10:57 am EDT (14:57 UTC)
13,500 ft	330° at 20 kt	−17 kt	-3 °C	137 kt	58 min	10:56 am EDT (14:56 UTC)
15,500 ft	320° at 22 kt	−20 kt	-6 °C	140 kt	57 min	10:55 am EDT (14:55 UTC)
17,500 ft	310° at 23 kt	−22 kt	-10 °C	142 kt	56 min	10:54 am EDT (14:54 UTC)
18,000 ft FL180	310° at 24 kt	−23 kt	-11 °C	143 kt	55 min	10:53 am EDT (14:53 UTC)
24,000 ft FL240	300° at 29 kt	−28 kt	-23 °C	148 kt	54 min	10:52 am EDT (14:52 UTC)
30,000 ft FL300	280° at 41 kt	−40 kt	-40 °C	160 kt	50 min	10:48 am EDT (14:48 UTC)
34,000 ft FL340	270° at 46 kt	−42 kt	-45 °C	162 kt	49 min	10:47 am EDT (14:47 UTC)
39,000 ft FL390	260° at 60 kt	−49 kt	-52 °C	169 kt	47 min	10:45 am EDT (14:45 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
BML	used from 0 nm out; 65 nm from the line	310/21	350/11 10°	330/9 6°	340/21 0°	310/23 -11°	310/29 -23°	280/39 -40°	280/42 -46°	260/57 -52°
PWM	used from 95 nm out; 19 nm from the line	320/11	260/11 8°	310/14 5°	310/19 1°	300/26 -11°	290/31 -22°	270/48 -40°	250/60 -43°	250/69 -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
BTV Burlington, VT	departure	low IFR Sky: a broken layer at 300 feet, overcast at 1,500 feet	calm	10+ mi	300 ft	334 ft	9:54 am EDT (13:54 UTC)
MPV Barre/Montpelier, VT	28 nm out, 6 nm south of the line	low IFR Sky: overcast at 200 feet	calm	10+ mi	200 ft	1,165 ft	13:51 UTC
HIE Whitefield, NH	66 nm out, 20 nm northeast of the line	low IFR Sky: a broken layer at 300 feet, overcast at 900 feet Weather: mist	calm	4 mi	300 ft	1,072 ft	13:52 UTC
IZG Fryeburg, ME	95 nm out, 9 nm northeast of the line	low IFR Sky: overcast at 400 feet	calm	10+ mi	400 ft	454 ft	13:54 UTC
PWM Portland, ME	destination	low IFR Sky: a broken layer at 400 feet	variable at 3 knots	10+ mi	400 ft	75 ft	9:51 am EDT (13:51 UTC)

The highest airport on this list sits at 1,165 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, 10:45 am EDT (14:45 UTC)

Wind from the west-northwest at 7 knots, visibility more than 6 miles, a few clouds at 25,000 feet VFR

The whole forecast for PWM

From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 3 knots, visibility more than 6 miles, a broken layer at 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

The forecast for BTV, the departure

From Mon 9:00 am EDT (13:00 UTC): wind calm, visibility more than 6 miles, a broken layer at 300 feet, a broken layer at 1,800 feet
At times between Mon 9:00 am EDT (13:00 UTC) and 10:00 am EDT (14:00 UTC): visibility 3 miles, mist, scattered clouds at 400 feet, a broken layer at 1,800 feet
From Mon 10:00 am EDT (14:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 2,800 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a broken layer at 6,000 feet
From Mon 3:00 pm EDT (19:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, a broken layer at 3,000 feet
30% chance between Mon 6:00 pm EDT (22:00 UTC) and 7:00 pm EDT (23:00 UTC): visibility 5 miles, light rain showers, mist
From Mon 7:00 pm EDT (23:00 UTC): wind from the north-northwest at 10 knots, visibility 6 miles, mist, overcast at 1,100 feet
30% chance between Mon 7:00 pm EDT (23:00 UTC) and 8:00 pm EDT (00:00 UTC): visibility 5 miles, light rain showers, mist
From Tue 2:00 am EDT (06:00 UTC): wind light and variable, visibility 4 miles, light rain showers, mist, overcast at 1,000 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 BTV 6:13 pm EDT (22:13 UTC), at PWM 6:03 pm EDT (22:03 UTC) (civil twilight ends 6:32 pm EDT (22:32 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, Portland International Jetport.