Plan a flight · Mon 5:01 am EDT (09:01 UTC)

Patrick Leahy Burlington International to Grand Junction Regional BTV → GJT

1,602 nautical miles (1,844 statute miles) west on a straight line, true course 271°, about 286° magnetic at the departure end (variation 15W). At 120 knots that is 16 h 01 min at the quickest height in today's winds (6,500 ft, a 20-knot headwind), arriving about 7:02 pm MDT (01:02 UTC), after sunset at the destination. Right now BTV is low IFR, wind calm; GJT is VFR, wind from the east-southeast (110°) at 19 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, fog). Over the first 438 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the first 80 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 70 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). Over the route from 667 to 1264 nm out.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 1204 nm along the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the last 229 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 1403 to 1593 nm out.
AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the last 189 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 119 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 100 nm of the route.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 0 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

B737 at 18,000 ft, 22 nm north, 3:24 am EDT (07:24 UTC): moderate turbulence, remarks: FL180-130. 1423 nm along the route, 22 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN330050/TM 0724/FL180/TP B737/TB MOD/RM FL180-130
```
Report
a routine report filed through DEN
Where
50 nm northwest (330°) of DEN
Time
07:24 UTC
Height
at 18,000 ft
Aircraft
B737
Turbulence
moderate
Remarks
FL180-130
A359 at 37,000 ft, 31 nm south, 2:18 am EDT (06:18 UTC): light to moderate chop turbulence. 129 nm along the route, 31 nm south 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
B737 descending, 28 nm southeast, 4:10 am EDT (08:10 UTC): light chop turbulence. 1423 nm along the route, 28 nm southeast of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0810/FLDURD/TP B737/TB LGT CHOP
```
Report
a routine report filed through DEN
Where
over DEN
Time
08:10 UTC
Height
during the descent
Aircraft
B737
Turbulence
light chop
B737 descending, 28 nm southeast, 3:10 am EDT (07:10 UTC): remarks: smooth. 1423 nm along the route, 28 nm southeast of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0710/FLDURD/TP B737/RM SMOOTH
```
Report
a routine report filed through DEN
Where
over DEN
Time
07:10 UTC
Height
during the descent
Aircraft
B737
Remarks
smooth
B738 descending, 28 nm southeast, 2:15 am EDT (06:15 UTC): light chop turbulence. 1423 nm along the route, 28 nm southeast of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0615/FLDURD/TP B738/TB LGT CHOP
```
Report
a routine report filed through DEN
Where
over DEN
Time
06:15 UTC
Height
during the descent
Aircraft
B738
Turbulence
light chop
A20N at 25,000 ft, 22 nm south, 2:19 am EDT (06:19 UTC): light chop turbulence up to 26,000 ft, remarks: during the climb ZDVWC-06. 1463 nm along the route, 22 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN250045/TM 0619/FL250/TP A20N/TB OCNL LGT CHOP BLO 260/RM DURC. ZDVWC-06
```
Report
a routine report filed through DEN
Where
45 nm west (250°) of DEN
Time
06:19 UTC
Height
at 25,000 ft
Aircraft
A20N
Turbulence
occasional light chop below 26,000 ft
Remarks
during the climb ZDVWC-06
B738 at 23,000 ft, 40 nm southeast, 2:23 am EDT (06:23 UTC): no turbulence from 23,000 ft to 26,000 ft, clear from 23,000 ft to 60,000 ft, remarks: during the descent sskii star ZDVWC-06. 1483 nm along the route, 40 nm southeast of the line.
as filed, and in English
```
DEN UA /OV DEN230060/TM 0623/FL230/TP B738/SK SKC/TB NEG 230-260/RM DURD SSKII STAR. ZDVWC-06
```
Report
a routine report filed through DEN
Where
60 nm southwest (230°) of DEN
Time
06:23 UTC
Height
at 23,000 ft
Aircraft
B738
Sky
clear
Turbulence
no from 23,000 ft to 26,000 ft
Remarks
during the descent sskii star ZDVWC-06
PC12 at 12,000 ft, 32 nm west, 3:08 am EDT (07:08 UTC): light turbulence, no icing, 4 °C, remarks: instrument conditions ZDVWC-11. At the destination end, 32 nm west of the line.
as filed, and in English
```
GJT UA /OV JNC237019/TM 0708/FL120/TP PC12/TA 04/TB OCNL LGT/IC NEG/RM IMC. ZDVWC-11
```
Report
a routine report filed through GJT
Where
19 nm southwest (237°) of JNC
Time
07:08 UTC
Height
at 12,000 ft
Aircraft
PC12
Temperature
4 °C
Turbulence
occasional light
Icing
none
Remarks
instrument conditions ZDVWC-11
E170 at 4,800 ft, 0 nm west, 2:31 am EDT (06:31 UTC): no turbulence, no icing, clear from 4,800 ft to 60,000 ft, remarks: during the descent rnav Y 11 lgjt zdvwc. At the destination end, 0 nm west of the line.
as filed, and in English
```
GJT UA /OV GJT/TM 0631/FL048/TP E170/SK SKC/TB NEG/IC NEG/RM DURD RNAV Y 11 LGJT. ZDVWC
```
Report
a routine report filed through GJT
Where
over GJT
Time
06:31 UTC
Height
at 4,800 ft
Aircraft
E170
Sky
clear
Turbulence
none
Icing
none
Remarks
during the descent rnav Y 11 lgjt zdvwc

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 14 forecast points nearest it (ALB, SYR, BUF, TVC, MKG, GRB, LSE, MCW, OMA, ONL, GRI, BFF, DEN, GJT). 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	260° at 22 kt	+22 kt	22 °C	98 kt	16 h 21 min	7:22 pm MDT (01:22 UTC)
6,500 ft	270° at 19 kt	+20 kt	15 °C	100 kt	16 h 01 min	7:02 pm MDT (01:02 UTC)
8,500 ft	260° at 19 kt	+20 kt	11 °C	100 kt	16 h 01 min	7:02 pm MDT (01:02 UTC)
10,500 ft	260° at 19 kt	+20 kt	7 °C	100 kt	16 h 01 min	7:02 pm MDT (01:02 UTC)
12,500 ft	260° at 20 kt	+21 kt	3 °C	99 kt	16 h 11 min	7:12 pm MDT (01:12 UTC)
14,500 ft	260° at 21 kt	+23 kt	-2 °C	97 kt	16 h 31 min	7:32 pm MDT (01:32 UTC)
16,500 ft	260° at 22 kt	+24 kt	-7 °C	96 kt	16 h 41 min	7:42 pm MDT (01:42 UTC)
18,000 ft FL180	260° at 23 kt	+25 kt	-10 °C	95 kt	16 h 52 min	7:53 pm MDT (01:53 UTC)
24,000 ft FL240	260° at 27 kt	+29 kt	-21 °C	91 kt	17 h 36 min	8:37 pm MDT (02:37 UTC)
30,000 ft FL300	270° at 36 kt	+38 kt	-35 °C	82 kt	19 h 32 min	10:33 pm MDT (04:33 UTC)
34,000 ft FL340	270° at 46 kt	+48 kt	-41 °C	72 kt	22 h 15 min	1:16 am MDT (07:16 UTC)
39,000 ft FL390	280° at 51 kt	+51 kt	-49 °C	69 kt	23 h 13 min	2:14 am MDT (08:14 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; 104 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°
SYR	used from 50 nm out; 97 nm from the line	330/17	320/14 9°	350/18 8°	350/26 2°	340/25 -11°	360/34 -22°	350/43 -39°	330/50 -46°	350/50 -54°
BUF	used from 199 nm out; 90 nm from the line	300/11	330/15 11°	340/26 8°	330/28 2°	340/31 -10°	340/32 -21°	340/52 -37°	340/59 -46°	330/66 -53°
TVC	used from 398 nm out; 116 nm from the line	270/31	280/23 15°	260/22 8°	260/29 4°	280/29 -11°	280/42 -21°	270/42 -36°	270/54 -47°	290/67 -51°
MKG	used from 547 nm out; 42 nm from the line	260/28	260/18 15°	250/16 9°	260/22 4°	280/31 -9°	270/35 -21°	270/44 -35°	270/42 -45°	290/61 -51°
GRB	used from 597 nm out; 52 nm from the line	250/32	250/22 17°	240/18 8°	280/21 6°	280/34 -11°	280/35 -21°	280/39 -37°	270/52 -45°	290/60 -49°
LSE	used from 697 nm out; 68 nm from the line	250/25	240/21 17°	240/28 11°	250/28 5°	280/24 -10°	280/31 -21°	260/35 -37°	270/45 -43°	280/59 -47°
MCW	used from 796 nm out; 56 nm from the line	250/36	250/24 19°	240/26 11°	250/30 5°	270/22 -9°	260/30 -21°	260/31 -36°	280/53 -38°	280/66 -48°
OMA	used from 946 nm out; 78 nm from the line	230/47	240/33 21°	230/22 13°	220/27 5°	240/35 -8°	250/43 -21°	260/47 -33°	260/59 -36°	270/58 -46°
ONL	used from 1045 nm out; 57 nm from the line		250/31 22°	230/27 16°	220/25 8°	230/25 -9°	220/29 -22°	250/42 -33°	250/48 -36°	250/52 -46°
GRI	used from 1194 nm out; 110 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
BFF	used from 1244 nm out; 95 nm from the line		280/28	260/39 11°	240/34 5°	210/38 -11°	210/52 -22°	230/61 -31°	230/61 -36°	240/56 -45°
DEN	used from 1344 nm out; 58 nm from the line			270/24 11°	230/13 5°	230/48 -8°	230/46 -20°	230/63 -30°	240/78 -36°	240/78 -48°
GJT	used from 1493 nm out; 85 nm from the line			220/26 6°	230/39 0°	220/55 -13°	230/60 -23°	230/78 -31°	230/80 -35°	230/74 -44°

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: overcast at 300 feet Weather: light rain, mist	calm	3 mi	300 ft	334 ft	4:54 am EDT (08:54 UTC)
SLK Saranac Lake, NY	50 nm out, 7 nm southeast of the line	low IFR Sky: overcast at 300 feet Weather: mist	calm	2.5 mi	300 ft	1,662 ft	08:51 UTC
CYPQ Peterborough,	219 nm out, 12 nm south of the line	low IFR Sky: a broken layer at 700 feet, a broken layer at 8,600 feet, overcast at 16,000 feet Weather: mist	calm	0.75 mi	700 ft	628 ft	08:50 UTC
CYOS Owen Sound,	328 nm out, 17 nm north of the line	no report just now				1,007 ft
GDW Gladwin, MI	488 nm out, 4 nm south of the line	low IFR Sky: sky obscured at 200 feet Weather: fog	variable at 3 knots	0.25 mi	200 ft	774 ft	08:55 UTC
MSN Madison, WI	707 nm out, 21 nm south of the line, tower	VFR	from the south (180°) at 5 knots	10+ mi	none	886 ft	08:53 UTC
CCY Charles City, IA	846 nm out, 3 nm north of the line	VFR Sky: overcast at 19,000 feet	from the south (180°) at 8 knots, gusting to 13	10+ mi	19,000 ft	1,125 ft	08:55 UTC
SUX Sioux City, IA	1015 nm out, 5 nm northwest of the line, tower	VFR	calm	10+ mi	none	1,098 ft	08:52 UTC
BUB Burwell, NE	1145 nm out, 3 nm northwest of the line	no report just now				2,183 ft
FNL Fort Collins/Loveland, CO	1423 nm out, 13 nm north of the line, tower	VFR	from the southeast (140°) at 3 knots	10+ mi	none	5,020 ft	08:56 UTC
EGE Eagle, CO	1523 nm out, 1 nm northeast of the line, tower	VFR Sky: scattered clouds at 7,000 feet, overcast at 9,000 feet	from the west (270°) at 4 knots	10+ mi	9,000 ft	6,547 ft	08:56 UTC
GJT Grand Junction, CO	destination	VFR Sky: scattered clouds at 6,000 feet, a broken layer at 8,500 feet, overcast at 10,000 feet	from the east-southeast (110°) at 19 knots	10+ mi	8,500 ft	4,861 ft	2:53 am MDT (08:53 UTC)

The highest airport on this list sits at 6,547 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At GJT when you get there the forecast at the estimated arrival, 7:02 pm MDT (01:02 UTC)

Wind from the west at 12 knots, gusting to 21, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 8,000 feet VFR

30% chance between Mon 6:00 pm MDT (00:00 UTC) and 12:00 am MDT (06:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads) marginal VFR

The whole forecast for GJT

From Mon 12:00 am MDT (06:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, showers nearby, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
From Mon 2:00 am MDT (08:00 UTC): wind from the south at 18 knots, gusting to 27, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 7,000 feet
30% chance between Mon 2:00 am MDT (08:00 UTC) and 8:00 am MDT (14:00 UTC): visibility 4 miles, light rain showers, a broken layer at 3,500 feet
From Mon 8:00 am MDT (14:00 UTC): wind from the south-southeast at 19 knots, gusting to 31, visibility more than 6 miles, scattered clouds at 4,500 feet, a broken layer at 7,000 feet
30% chance between Mon 8:00 am MDT (14:00 UTC) and 12:00 pm MDT (18:00 UTC): visibility 4 miles, light rain showers, a broken layer at 3,500 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the south-southwest at 16 knots, gusting to 24, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 6,000 feet
30% chance between Mon 12:00 pm MDT (18:00 UTC) and 6:00 pm MDT (00:00 UTC): visibility 4 miles, light rain showers, a broken layer at 4,000 feet, a broken layer at 6,000 feet
From Mon 6:00 pm MDT (00:00 UTC): wind from the west at 12 knots, gusting to 21, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 8,000 feet
30% chance between Mon 6:00 pm MDT (00:00 UTC) and 12:00 am MDT (06:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)

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

6/8911 DENVER, CO, Monday, October 12, 2026 UTC 16 nm from the route, 1433 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZDV

Daylight

Sunset at BTV 6:13 pm EDT (22:13 UTC), at GJT 6:38 pm MDT (00:38 UTC) (civil twilight ends 7:05 pm MDT (01:05 UTC)). At 120 knots the arrival at GJT is after sunset there (6:40 pm MDT (00:40 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 now, the upper Mississippi valley · 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, Grand Junction Regional.