Plan a flight · Sun 6:28 pm MDT (00:28 UTC)

Bozeman Yellowstone International to Laurence G Hanscom Field BZN → BED

1,711 nautical miles (1,970 statute miles) east on a straight line, true course 082°, about 069° magnetic at the departure end (variation 13E). At 120 knots that is 9 h 21 min at the quickest height in today's winds (39,000 ft, a 63-knot tailwind), arriving about 5:49 am EDT (09:49 UTC), after sunset at the destination. Right now BZN is low IFR, wind calm; BED is IFR, wind from the east (080°) 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: 7 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 W70W: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 7:55 pm MDT (01:55 UTC). Near the route, 209 nm along the route.

as issued

WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 70W
VALID UNTIL 0155Z
MT WY
FROM 30SSW MLS-60WNW BFF-40SSE OCS-10S BPI-10S BIL-30SSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL320.

AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 408 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 328 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 129 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, 90 nm along the route.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 587 to 627 nm out.
AIRMET ZULU 1C: moderate icing up to 24,000 ft. Over the last 249 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 249 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 239 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1503 to 1652 nm out.
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 last 20 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 BZN.

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

E75 at 34,000 ft, 25 nm southwest, 5:15 pm MDT (23:15 UTC): moderate turbulence. 1542 nm along the route, 25 nm southwest of the line.
as filed, and in English
```
RME UA /OV UCA/TM 2315/FL340/TP E75/TB CONS MOD
```
Report
a routine report filed through RME
Where
over UCA
Time
23:15 UTC
Height
at 34,000 ft
Aircraft
E75
Turbulence
continuous moderate
A21N at 35,000 ft, 25 nm southwest, 4:57 pm MDT (22:57 UTC): moderate turbulence. 1542 nm along the route, 25 nm southwest of the line.
as filed, and in English
```
RME UA /OV UCA/TM 2257/FL350/TP A21N/TB CONS MOD
```
Report
a routine report filed through RME
Where
over UCA
Time
22:57 UTC
Height
at 35,000 ft
Aircraft
A21N
Turbulence
continuous moderate
GLEX at 26,000 ft, 4 nm southeast, 5:54 pm MDT (23:54 UTC): moderate clear-air turbulence. 1612 nm along the route, 4 nm southeast of the line.
as filed, and in English
```
ALB UA /OV CAM/TM 2354/FL260/TP GLEX/TB MOD CAT 260-230 LGT MOD CAT BLO 230
```
Report
a routine report filed through ALB
Where
over CAM
Time
23:54 UTC
Height
at 26,000 ft
Aircraft
GLEX
Turbulence
moderate clear-air turbulence from 26,000 ft to 23,000 ft light moderate clear-air turbulence below 23,000 ft
A388 at 34,000 ft, 46 nm southwest, 5:19 pm MDT (23:19 UTC): moderate chop turbulence. 1622 nm along the route, 46 nm southwest of the line.
as filed, and in English
```
POU UA /OV PWL010030/TM 2319/FL340/TP A388/TB MOD CHOP
```
Report
a routine report filed through POU
Where
30 nm north (010°) of PWL
Time
23:19 UTC
Height
at 34,000 ft
Aircraft
A388
Turbulence
moderate chop
E75S at 16,000 ft, 35 nm southwest, 5:35 pm MDT (23:35 UTC): moderate clear-air turbulence above 16,000 ft, remarks: moderate in +ra to light chop. At the destination end, 35 nm southwest of the line.
as filed, and in English
```
SFZ UA /OV PUT360003/TM 2335/FL160/TP E75S/TB MOD 160 CAT/RM MOD IN +RA TO LGT CHOP
```
Report
a routine report filed through SFZ
Where
3 nm north (360°) of PUT
Time
23:35 UTC
Height
at 16,000 ft
Aircraft
E75S
Turbulence
moderate at 16,000 ft clear-air turbulence
Remarks
moderate in +ra to light chop
BCS3 at 18,000 ft, 50 nm south, 6:17 pm MDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. At the destination end, 50 nm south of the line.
as filed, and in English
```
EWB UA /OV EWB/TM 0017/FL180/TP BCS3/TB MOD CHOP/RM MOD CHOP180-210 SMOOTH ABOVE FL220
```
Report
a routine report filed through EWB
Where
over EWB
Time
00:17 UTC
Height
at 18,000 ft
Aircraft
BCS3
Turbulence
moderate chop
Remarks
moderate CHOP180-210 smooth above 22,000 ft
BCS3 at 12,000 ft, 29 nm southeast, 6:11 pm MDT (00:11 UTC): moderate turbulence, rain, remarks: ssoxs dept from 12,000 ft to 16,000 ft. At the destination end, 29 nm southeast of the line.
as filed, and in English
```
BOS UA /OV BOS200020/TM 0011/FL120/TP BCS3/WX RA+/TB MOD/RM SSOXS DEPT 120-160
```
Report
a routine report filed through BOS
Where
20 nm south (200°) of BOS
Time
00:11 UTC
Height
at 12,000 ft
Aircraft
BCS3
Weather
ra+
Turbulence
moderate
Remarks
ssoxs dept from 12,000 ft to 16,000 ft
BCS3 at 13,000 ft, 15 nm southeast, 5:03 pm MDT (23:03 UTC): moderate turbulence from 13,000 ft to 16,000 ft, heavy rain, remarks: during the climb. At the destination end, 15 nm southeast of the line.
as filed, and in English
```
BOS UA /OV BOS18005/TM 2303/FL130/TP BCS3/WX +RA/TB MOD 130-160/RM DURC
```
Report
a routine report filed through BOS
Where
BOS18005
Time
23:03 UTC
Height
at 13,000 ft
Aircraft
BCS3
Weather
heavy rain
Turbulence
moderate from 13,000 ft to 16,000 ft
Remarks
during the climb
E75L at 11,000 ft, 34 nm south, 4:05 pm MDT (22:05 UTC): moderate turbulence from 11,000 ft to 15,000 ft. At the destination end, 34 nm south of the line.
as filed, and in English
```
BOS UA /OV BOS220030/TM 2205/FL110/TP E75L/TB MOD 150-110
```
Report
a routine report filed through BOS
Where
30 nm southwest (220°) of BOS
Time
22:05 UTC
Height
at 11,000 ft
Aircraft
E75L
Turbulence
moderate from 15,000 ft to 11,000 ft
B738 at 24,000 ft, 30 nm west, 5:13 pm MDT (23:13 UTC): remarks: snow top flight level at 24,000 ft zlc. At the departure end, 30 nm west of the line.
as filed, and in English
```
BZN UA /OV BZN270030/TM 2313/FL240/TP B738/RM SN TOP FL 240 /ZLC
```
Report
a routine report filed through BZN
Where
30 nm west (270°) of BZN
Time
23:13 UTC
Height
at 24,000 ft
Aircraft
B738
Remarks
snow top flight level at 24,000 ft zlc
CRJ2 at 2,900 ft, 36 nm north, 6:05 pm MDT (00:05 UTC): a routine report with nothing remarked on. 348 nm along the route, 36 nm north of the line.
as filed, and in English
```
DIK UA /OV DIK/TM 0005/FL029/TP CRJ2/SK BASE029
```
Report
a routine report filed through DIK
Where
over DIK
Time
00:05 UTC
Height
at 2,900 ft
Aircraft
CRJ2
Sky
BASE029
BE20 at 3,000 ft, 36 nm north, 4:56 pm MDT (22:56 UTC): no turbulence, no icing. 348 nm along the route, 36 nm north of the line.
as filed, and in English
```
DIK UA /OV DIK/TM 2256/FL030/TP BE20/SK BASE031/TB NEG/IC NEG
```
Report
a routine report filed through DIK
Where
over DIK
Time
22:56 UTC
Height
at 3,000 ft
Aircraft
BE20
Sky
BASE031
Turbulence
none
Icing
none
TBM7 at 3,000 ft, 36 nm north, 3:55 pm MDT (21:55 UTC): no turbulence, no icing, 5 °C. 348 nm along the route, 36 nm north of the line.
as filed, and in English
```
DIK UA /OV DIK/TM 2155/FL030/TP TBM7/SK BASE030-TOP043/ BASE060-TOP081/TA 05/TB NEG/IC NEG
```
Report
a routine report filed through DIK
Where
over DIK
Time
21:55 UTC
Height
at 3,000 ft
Aircraft
TBM7
Sky
BASE030-TOP043; BASE060-TOP081
Temperature
5 °C
Turbulence
none
Icing
none
C56X at 1,300 ft, 41 nm north, 5:17 pm MDT (23:17 UTC): overcast above 1,300 ft. 597 nm along the route, 41 nm north of the line.
as filed, and in English
```
FAR UA /OV KFAR/TM 2317/FL013/TP C56X/SK OVC013
```
Report
a routine report filed through FAR
Where
over KFAR
Time
23:17 UTC
Height
at 1,300 ft
Aircraft
C56X
Sky
overcast from 1,300 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 13 forecast points nearest it (BIL, MLS, DIK, ABR, AXN, DLH, GRB, TVC, BUF, SYR, ALB, BDL, BOS). 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	190° at 9 kt	+1 kt		119 kt	14 h 23 min	10:51 am EDT (14:51 UTC)
5,500 ft	180° at 7 kt	+1 kt	6 °C	119 kt	14 h 23 min	10:51 am EDT (14:51 UTC)
7,500 ft	220° at 9 kt	−5 kt	10 °C	125 kt	13 h 41 min	10:09 am EDT (14:09 UTC)
9,500 ft	230° at 13 kt	−10 kt	7 °C	130 kt	13 h 10 min	9:38 am EDT (13:38 UTC)
11,500 ft	230° at 17 kt	−13 kt	3 °C	133 kt	12 h 52 min	9:20 am EDT (13:20 UTC)
13,500 ft	240° at 20 kt	−17 kt	-1 °C	137 kt	12 h 29 min	8:57 am EDT (12:57 UTC)
15,500 ft	240° at 24 kt	−21 kt	-5 °C	141 kt	12 h 08 min	8:36 am EDT (12:36 UTC)
17,500 ft	250° at 27 kt	−25 kt	-9 °C	145 kt	11 h 48 min	8:16 am EDT (12:16 UTC)
18,000 ft FL180	250° at 28 kt	−26 kt	-10 °C	146 kt	11 h 43 min	8:11 am EDT (12:11 UTC)
24,000 ft FL240	250° at 36 kt	−33 kt	-21 °C	153 kt	11 h 11 min	7:39 am EDT (11:39 UTC)
30,000 ft FL300	250° at 41 kt	−37 kt	-36 °C	157 kt	10 h 54 min	7:22 am EDT (11:22 UTC)
34,000 ft FL340	250° at 54 kt	−49 kt	-45 °C	169 kt	10 h 07 min	6:35 am EDT (10:35 UTC)
39,000 ft FL390	260° at 67 kt	−63 kt	-52 °C	183 kt	9 h 21 min	5:49 am EDT (09:49 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
BIL	used from 0 nm out; 84 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
MLS	used from 149 nm out; 50 nm from the line		120/22 5°	170/18 4°	200/33 1°	230/49 -10°	230/58 -21°	220/54 -37°	230/64 -44°	250/74 -49°
DIK	used from 299 nm out; 42 nm from the line		110/15 6°	200/17 5°	230/31 1°	240/47 -10°	240/52 -20°	230/52 -36°	240/57 -45°	250/67 -51°
ABR	used from 448 nm out; 78 nm from the line	030/24	220/5 16°	230/18 12°	230/32 5°	240/38 -10°	250/37 -20°	240/40 -35°	240/56 -44°	250/72 -52°
AXN	used from 597 nm out; 41 nm from the line	L/V	220/23 17°	230/24 12°	240/25 5°	260/32 -11°	260/40 -21°	270/50 -35°	270/57 -45°	270/81 -55°
DLH	used from 746 nm out; 52 nm from the line	240/6	230/22 15°	250/28 11°	230/22 4°	270/33 -12°	280/47 -21°	280/59 -37°	290/65 -47°	290/88 -55°
GRB	used from 896 nm out; 86 nm from the line	240/24	260/18 16°	270/20 11°	290/14 4°	280/24 -9°	300/34 -21°	310/51 -38°	310/54 -48°	300/71 -51°
TVC	used from 995 nm out; 67 nm from the line	210/17	290/14 15°	310/20 9°	310/18 2°	310/24 -11°	320/35 -22°	320/53 -39°	310/45 -49°	290/58 -51°
BUF	used from 1244 nm out; 143 nm from the line	170/19	L/V 10°	040/9 6°	220/8 2°	230/15 -11°	220/33 -22°	220/47 -35°	230/55 -41°	230/56 -50°
SYR	used from 1443 nm out; 44 nm from the line	160/17	200/22 10°	250/10 6°	L/V 1°	270/11 -11°	220/25 -20°	220/66 -36°	230/89 -42°	240/74 -51°
ALB	used from 1542 nm out; 40 nm from the line	160/27	190/16 9°	200/29 7°	230/21 3°	240/24 -9°	240/43 -19°	230/65 -33°	240/91 -42°	230/99 -53°
BDL	used from 1642 nm out; 51 nm from the line	140/28	180/29 10°	220/38 8°	250/30 3°	250/40 -8°	240/46 -18°	240/58 -32°	240/80 -41°	240/89 -55°
BOS	used from 1692 nm out; 24 nm from the line	160/27	190/23 9°	260/20 7°	260/32 1°	250/48 -7°	240/56 -17°	240/59 -33°	250/75 -43°	250/94 -55°

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
BZN Bozeman, MT	departure	low IFR Sky: scattered clouds at 200 feet, scattered clouds at 700 feet, overcast at 1,100 feet Weather: snow, fog	calm	0.5 mi	1,100 ft	4,473 ft	5:56 pm MDT (23:56 UTC)
BIL Billings, MT	109 nm out, 11 nm south of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,200 feet Weather: light rain, mist	from the north (010°) at 14 knots	6 mi	800 ft	3,662 ft	23:53 UTC
BWW Bowman, ND	328 nm out, 5 nm south of the line	low IFR Sky: overcast at 400 feet Weather: mist	from the east-northeast (060°) at 15 knots, gusting to 20	3 mi	400 ft	2,965 ft	23:35 UTC
HEI Hettinger, ND	358 nm out, 16 nm south of the line	IFR Sky: overcast at 500 feet Weather: mist	from the northeast (050°) at 10 knots, gusting to 21	3 mi	500 ft	2,705 ft	00:18 UTC
BWP Wahpeton, ND	607 nm out, 1 nm northwest of the line	VFR	from the north (360°) at 16 knots, gusting to 23	10+ mi	none	968 ft	23:35 UTC
HYR Hayward, WI	826 nm out, 6 nm northwest of the line	VFR	from the south (180°) at 4 knots	10+ mi	none	1,215 ft	23:53 UTC
PKF Park Falls, WI	866 nm out, 5 nm north of the line	no report just now				1,501 ft
APN Alpena, MI	1154 nm out, 3 nm east of the line, tower	VFR	from the southeast (140°) at 3 knots	10+ mi	none	689 ft	23:54 UTC
CYOS Owen Sound,	1274 nm out, 4 nm southeast of the line	no report just now				1,007 ft
RME Rome, NY	1522 nm out, 16 nm south of the line, tower	VFR Sky: a few clouds at 2,700 feet, a broken layer at 4,500 feet, overcast at 10,000 feet Weather: rain	from the east (100°) at 8 knots	7 mi	4,500 ft	504 ft	23:53 UTC
ASH Nashua, NH	1692 nm out, 15 nm northeast of the line, tower	marginal VFR Sky: scattered clouds at 1,400 feet, a broken layer at 2,800 feet, overcast at 8,000 feet Weather: rain, mist	calm	4 mi	2,800 ft	200 ft	00:22 UTC
BED Bedford, MA	destination	IFR Sky: overcast at 1,700 feet Weather: heavy rain, mist	from the east (080°) at 3 knots	2.5 mi	1,700 ft	132 ft	7:51 pm EDT (23:51 UTC)

The highest airport on this list sits at 4,473 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BED when you get there the forecast at the estimated arrival, 5:49 am EDT (09:49 UTC)

Wind from the north-northeast at 4 knots, visibility 2 miles, mist, overcast at 300 feet low IFR

The whole forecast for BED

From Sun 8:00 pm EDT (00:00 UTC): wind from the northeast at 3 knots, visibility 4 miles, rain, mist, overcast at 2,500 feet
From Sun 10:00 pm EDT (02:00 UTC): wind calm, visibility 2 miles, light rain, mist, overcast at 800 feet
From Sun 11:00 pm EDT (03:00 UTC): wind calm, visibility 1½ miles, light rain, mist, overcast at 300 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the north-northeast at 4 knots, visibility 2 miles, mist, overcast at 300 feet
30% chance between Mon 3:00 am EDT (07:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 1 mile, light rain showers, mist, overcast at 100 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 3 knots, visibility more than 6 miles, a broken layer at 1,000 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 4 knots, visibility more than 6 miles, a few clouds at 9,000 feet

The forecast for BZN, the departure

From Sun 6:00 pm MDT (00:00 UTC): wind light and variable, visibility ½ mile, snow, fog, overcast at 300 feet
At times between Sun 9:00 pm MDT (03:00 UTC) and 12:00 am MDT (06:00 UTC): visibility 2 miles, light snow, mist, scattered clouds at 300 feet, overcast at 1,200 feet
From Mon 12:00 am MDT (06:00 UTC): wind from the west at 7 knots, visibility 2 miles, light snow, mist, overcast at 800 feet
At times between Mon 12:00 am MDT (06:00 UTC) and 3:00 am MDT (09:00 UTC): visibility 6 miles, light snow, mist, overcast at 800 feet
From Mon 3:00 am MDT (09:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 800 feet
From Mon 12:00 pm MDT (18:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, overcast at 2,000 feet
From Mon 5:00 pm MDT (23:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 1,500 feet, a broken layer at 11,000 feet

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

6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 22 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW

Daylight

Sunset at BZN 6:44 pm MDT (00:44 UTC), at BED 6:08 pm EDT (22:08 UTC) (civil twilight ends 6:36 pm EDT (22:36 UTC)). At 120 knots the arrival at BED is before sunrise there (6:54 am EDT (10:54 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 northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the central Great Lakes · 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: Bozeman Yellowstone International, Laurence G Hanscom Field.