General Edward Lawrence Logan International to Billings Logan International BOS → BIL
1,617 nautical miles (1,861 statute miles) west on a straight line, true course 290°, about 305° magnetic at the departure end (variation 15W). At 120 knots that is 14 h 04 min at the quickest height in today's winds (4,500 ft, a 5-knot headwind), arriving about 2:16 pm MDT (20:16 UTC). 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 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 559 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 260 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 10,000 ft. Over the first 90 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 22,000 ft. Over the route from 20 to 230 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 70 to 220 nm out.
- AIRMET TANGO 3W: 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 769 to 848 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). Over the last 539 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1487 to 1547 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 120 nm of the route.
- 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). Near the route, 1507 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, at the destination end.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the destination end.
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 BOS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 (BOS, BDL, ALB, SYR, BUF, TVC, GRB, DLH, MSP, AXN, ABR, DIK, MLS, BIL). 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 | 230° at 6 kt | +5 kt | 5 °C | 115 kt | 14 h 04 min | 2:16 pm MDT (20:16 UTC) |
| 6,500 ft | 250° at 9 kt | +9 kt | 11 °C | 111 kt | 14 h 34 min | 2:46 pm MDT (20:46 UTC) |
| 8,500 ft | 250° at 12 kt | +12 kt | 9 °C | 108 kt | 14 h 58 min | 3:10 pm MDT (21:10 UTC) |
| 10,500 ft | 250° at 17 kt | +16 kt | 5 °C | 104 kt | 15 h 33 min | 3:45 pm MDT (21:45 UTC) |
| 12,500 ft | 250° at 23 kt | +21 kt | 2 °C | 99 kt | 16 h 20 min | 4:32 pm MDT (22:32 UTC) |
| 14,500 ft | 250° at 25 kt | +24 kt | -3 °C | 96 kt | 16 h 51 min | 5:03 pm MDT (23:03 UTC) |
| 16,500 ft | 260° at 27 kt | +27 kt | -7 °C | 93 kt | 17 h 23 min | 5:35 pm MDT (23:35 UTC) |
| 18,000 ft FL180 | 260° at 29 kt | +29 kt | -10 °C | 91 kt | 17 h 46 min | 5:58 pm MDT (23:58 UTC) |
| 24,000 ft FL240 | 260° at 32 kt | +31 kt | -21 °C | 89 kt | 18 h 10 min | 6:22 pm MDT (00:22 UTC) |
| 30,000 ft FL300 | 260° at 35 kt | +35 kt | -36 °C | 85 kt | 19 h 01 min | 7:13 pm MDT (01:13 UTC) |
| 34,000 ft FL340 | 260° at 45 kt | +44 kt | -44 °C | 76 kt | 21 h 17 min | 9:29 pm MDT (03:29 UTC) |
| 39,000 ft FL390 | 260° at 58 kt | +56 kt | -51 °C | 64 kt | 25 h 16 min | 1:28 am MDT (07:28 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOS | used from 0 nm out; 25 nm from the line | 110/20 | 200/26 12° | 280/24 8° | 260/29 3° | 250/47 -10° | 230/59 -19° | 230/74 -33° | 240/95 -41° | 240/96 -53° |
| BDL | used from 50 nm out; 51 nm from the line | 120/24 | 290/23 12° | 280/21 8° | 250/36 3° | 250/41 -11° | 230/48 -21° | 230/78 -32° | 230/96 -41° | 230/86 -52° |
| ALB | used from 100 nm out; 19 nm from the line | 120/9 | 270/8 10° | L/V 5° | 260/9 1° | 260/34 -10° | 250/42 -22° | 240/57 -35° | 240/70 -42° | 240/65 -50° |
| SYR | used from 200 nm out; 29 nm from the line | 280/13 | 350/18 10° | 340/10 6° | 300/15 1° | 280/17 -12° | 270/16 -23° | 280/25 -38° | 250/40 -42° | 240/53 -50° |
| BUF | used from 299 nm out; 71 nm from the line | 320/10 | 010/16 10° | 360/10 6° | 340/13 2° | 330/22 -11° | 300/25 -23° | 320/31 -38° | 300/29 -44° | 280/36 -50° |
| TVC | used from 499 nm out; 128 nm from the line | 260/31 | 280/22 15° | 290/18 10° | 270/13 2° | 290/25 -10° | 300/35 -21° | 310/52 -37° | 320/59 -47° | 300/84 -54° |
| GRB | used from 699 nm out; 69 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -55° |
| DLH | used from 848 nm out; 88 nm from the line | 080/28 | 240/21 15° | 250/26 9° | 250/32 3° | 260/42 -11° | 270/40 -21° | 260/43 -36° | 260/46 -46° | 260/65 -54° |
| MSP | used from 948 nm out; 64 nm from the line | 230/26 | 240/30 17° | 240/24 12° | 250/22 5° | 250/35 -10° | 260/36 -21° | 250/41 -36° | 250/49 -45° | 260/58 -52° |
| AXN | used from 998 nm out; 46 nm from the line | 100/14 | 250/21 14° | 240/24 12° | 240/31 5° | 260/36 -10° | 260/40 -21° | 250/42 -36° | 260/48 -45° | 260/53 -50° |
| ABR | used from 1148 nm out; 46 nm from the line | 070/14 | 250/10 17° | 270/16 11° | 260/28 5° | 260/36 -10° | 260/41 -22° | 270/33 -37° | 260/42 -42° | 260/50 -48° |
| DIK | used from 1298 nm out; 67 nm from the line | 150/24 7° | 200/38 6° | 220/53 0° | 230/51 -9° | 230/49 -21° | 240/37 -37° | 240/47 -44° | 250/65 -48° | |
| MLS | used from 1447 nm out; 41 nm from the line | 150/23 2° | 190/29 4° | 210/44 2° | 220/32 -10° | 210/36 -21° | 200/48 -37° | 230/63 -40° | 240/71 -47° | |
| BIL | used from 1547 nm out; 45 nm from the line | 080/13 | 180/9 -2° | 210/38 0° | 220/51 -11° | 210/46 -22° | 210/58 -35° | 230/73 -39° | 230/72 -45° |
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 |
|---|---|---|---|---|---|---|---|
| BOS Boston, MA | departure | no report just now | 19 ft | ||||
| SCH Schenectady, NY | 130 nm out, 15 nm southwest of the line, tower | no report just now | 377 ft | ||||
| RME Rome, NY | 200 nm out, 13 nm south of the line, tower | no report just now | 504 ft | ||||
| CYOS Owen Sound, | 449 nm out, 3 nm northeast of the line | no report just now | 1,007 ft | ||||
| APN Alpena, MI | 569 nm out, 6 nm north of the line, tower | no report just now | 689 ft | ||||
| IMT Iron Mountain Kingsford, MI | 769 nm out, 17 nm north of the line | no report just now | 1,182 ft | ||||
| RHI Rhinelander, WI | 818 nm out, 3 nm south of the line | no report just now | 1,623 ft | ||||
| JMR Mora, MN | 978 nm out, 4 nm south of the line | no report just now | 1,032 ft | ||||
| GWR Gwinner, ND | 1158 nm out, 7 nm northwest of the line | no report just now | 1,265 ft | ||||
| BWW Bowman, ND | 1397 nm out, 5 nm north of the line | no report just now | 2,965 ft | ||||
| BIL Billings, MT | destination | no report just now | 3,662 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 BIL when you get there the forecast at the estimated arrival, 2:16 pm MDT (20:16 UTC)
BIL 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 departure end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at BOS 6:07 pm EDT (22:07 UTC), at BIL 6:32 pm MDT (00:32 UTC) (civil twilight ends 7:02 pm MDT (01:02 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
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: General Edward Lawrence Logan International, Billings Logan International.