Plan a flight · Sun 7:04 pm MDT (01:04 UTC)

Billings Logan International to General Edward Lawrence Logan International BIL → BOS

1,617 nautical miles (1,861 statute miles) east on a straight line, true course 084°, about 074° magnetic at the departure end (variation 10E). At 120 knots that is 8 h 50 min at the quickest height in today's winds (39,000 ft, a 63-knot tailwind), arriving about 5:54 am EDT (09:54 UTC), after sunset at the destination. 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

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 299 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 220 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, at the departure end.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 20 nm of 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 489 to 519 nm out.
AIRMET ZULU 1C: moderate icing up to 24,000 ft. Over the last 260 nm of the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 260 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 260 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1397 to 1537 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 50 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 BIL.

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

DH8D at 19,000 ft, 48 nm south, 5:35 pm MDT (23:35 UTC): moderate chop turbulence, remarks: zob. 1327 nm along the route, 48 nm south of the line.
as filed, and in English
```
ROC UA /OV ROC/TM 2335/FL190/TP DH8D/TB CONS MOD CHOP/RM ZOB
```
Report
a routine report filed through ROC
Where
over ROC
Time
23:35 UTC
Height
at 19,000 ft
Aircraft
DH8D
Turbulence
continuous moderate chop
Remarks
zob
E75 at 34,000 ft, 22 nm south, 5:15 pm MDT (23:15 UTC): moderate turbulence. 1427 nm along the route, 22 nm south 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, 22 nm south, 4:57 pm MDT (22:57 UTC): moderate turbulence. 1427 nm along the route, 22 nm south 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
CRJ7 at 20,000 ft, 18 nm north, 6:50 pm MDT (00:50 UTC): moderate turbulence. 1497 nm along the route, 18 nm north of the line.
as filed, and in English
```
ALB UA /OV CAM360020/TM 0050/FL200/TP CRJ7/TB MOD
```
Report
a routine report filed through ALB
Where
20 nm north (360°) of CAM
Time
00:50 UTC
Height
at 20,000 ft
Aircraft
CRJ7
Turbulence
moderate
GLEX at 26,000 ft, 1 nm north, 5:54 pm MDT (23:54 UTC): moderate clear-air turbulence. 1507 nm along the route, 1 nm north 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, 44 nm south, 5:19 pm MDT (23:19 UTC): moderate chop turbulence. 1507 nm along the route, 44 nm south 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, 33 nm south, 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, 33 nm south 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
A321 at 5,000 ft, 21 nm southeast, 6:46 pm MDT (00:46 UTC): moderate turbulence from 5,000 ft to 15,000 ft. At the destination end, 21 nm southeast of the line.
as filed, and in English
```
BOS UA /OV BOS150020/TM 0046/FL050/TP A321/TB MOD 150-050
```
Report
a routine report filed through BOS
Where
20 nm southeast (150°) of BOS
Time
00:46 UTC
Height
at 5,000 ft
Aircraft
A321
Turbulence
moderate from 15,000 ft to 5,000 ft
BCS3 at 18,000 ft, 41 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, 41 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, 20 nm south, 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, 20 nm south 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, 1 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, 1 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, 30 nm south, 4:05 pm MDT (22:05 UTC): moderate turbulence from 11,000 ft to 15,000 ft. At the destination end, 30 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
A306 at 4,700 ft, 4 nm west, 6:51 pm MDT (00:51 UTC): a routine report with nothing remarked on. At the departure end, 4 nm west of the line.
as filed, and in English
```
BIL UA /OV BIL280001/TM 0051/FL047/TP A306/SK BASE 047
```
Report
a routine report filed through BIL
Where
1 nm west (280°) of BIL
Time
00:51 UTC
Height
at 4,700 ft
Aircraft
A306
Sky
base 4,700 ft
CRJ2 at 2,900 ft, 46 nm north, 6:05 pm MDT (00:05 UTC): a routine report with nothing remarked on. 240 nm along the route, 46 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

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, MSP, DLH, GRB, TVC, BUF, SYR, ALB, 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 11 kt	0		120 kt	13 h 28 min	10:32 am EDT (14:32 UTC)
5,500 ft	200° at 8 kt	−1 kt	6 °C	121 kt	13 h 22 min	10:26 am EDT (14:26 UTC)
7,500 ft	230° at 10 kt	−7 kt	10 °C	127 kt	12 h 44 min	9:48 am EDT (13:48 UTC)
9,500 ft	240° at 13 kt	−11 kt	7 °C	131 kt	12 h 21 min	9:25 am EDT (13:25 UTC)
11,500 ft	240° at 16 kt	−14 kt	4 °C	134 kt	12 h 04 min	9:08 am EDT (13:08 UTC)
13,500 ft	240° at 19 kt	−17 kt	-1 °C	137 kt	11 h 48 min	8:52 am EDT (12:52 UTC)
15,500 ft	250° at 23 kt	−21 kt	-5 °C	141 kt	11 h 28 min	8:32 am EDT (12:32 UTC)
17,500 ft	250° at 26 kt	−25 kt	-9 °C	145 kt	11 h 09 min	8:13 am EDT (12:13 UTC)
18,000 ft FL180	250° at 27 kt	−26 kt	-10 °C	146 kt	11 h 05 min	8:09 am EDT (12:09 UTC)
24,000 ft FL240	250° at 34 kt	−32 kt	-21 °C	152 kt	10 h 38 min	7:42 am EDT (11:42 UTC)
30,000 ft FL300	250° at 41 kt	−38 kt	-36 °C	158 kt	10 h 14 min	7:18 am EDT (11:18 UTC)
34,000 ft FL340	260° at 53 kt	−49 kt	-45 °C	169 kt	9 h 34 min	6:38 am EDT (10:38 UTC)
39,000 ft FL390	260° at 67 kt	−63 kt	-52 °C	183 kt	8 h 50 min	5:54 am EDT (09:54 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; 25 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 50 nm out; 47 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 200 nm out; 45 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 349 nm out; 64 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 499 nm out; 28 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°
MSP	used from 599 nm out; 67 nm from the line	200/28	240/30 19°	240/24 12°	240/17 5°	270/24 -10°	270/33 -20°	280/48 -35°	290/55 -45°	280/84 -54°
DLH	used from 649 nm out; 57 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 749 nm out; 110 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 898 nm out; 54 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 1148 nm out; 130 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 1298 nm out; 73 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 1447 nm out; 28 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°
BOS	used from 1547 nm out; 45 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	Elevation
BIL Billings, MT	departure	no report just now	3,662 ft
BWW Bowman, ND	220 nm out, 5 nm north of the line	no report just now	2,965 ft
GWR Gwinner, ND	459 nm out, 7 nm northwest of the line	no report just now	1,265 ft
JMR Mora, MN	639 nm out, 4 nm south of the line	no report just now	1,032 ft
RHI Rhinelander, WI	798 nm out, 3 nm south of the line	no report just now	1,623 ft
IMT Iron Mountain Kingsford, MI	848 nm out, 17 nm north of the line	no report just now	1,182 ft
APN Alpena, MI	1048 nm out, 6 nm north of the line, tower	no report just now	689 ft
CYOS Owen Sound,	1168 nm out, 3 nm northeast of the line	no report just now	1,007 ft
RME Rome, NY	1417 nm out, 13 nm south of the line, tower	no report just now	504 ft
SCH Schenectady, NY	1487 nm out, 15 nm southwest of the line, tower	no report just now	377 ft
BOS Boston, MA	destination	no report just now	19 ft

The highest airport on this list sits at 3,662 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BOS when you get there the forecast at the estimated arrival, 5:54 am EDT (09:54 UTC)

BOS has no terminal forecast; use the nearest airport that does.

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 19 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW

Daylight

Sunset at BIL 6:33 pm MDT (00:33 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 UTC)). At 120 knots the arrival at BOS is before sunrise there (6:53 am EDT (10:53 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: Billings Logan International, General Edward Lawrence Logan International.