Bozeman Yellowstone International to Bangor International BZN → BGR
1,767 nautical miles (2,034 statute miles) east on a straight line, true course 076°, about 063° magnetic at the departure end (variation 13E). At 120 knots that is 9 h 56 min at the quickest height in today's winds (39,000 ft, a 58-knot tailwind), arriving about 2:39 pm EDT (18:39 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: 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 889 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 100 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 20 to 180 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 140 to 270 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1648 to 1737 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 100 nm of the route.
- 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 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 BZN.
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 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 13 forecast points nearest it (BIL, MLS, DIK, MOT, GFK, AXN, DLH, GRB, TVC, BUF, SYR, BML, BGR). 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 6 kt | −6 kt | 126 kt | 14 h 01 min | 6:44 pm EDT (22:44 UTC) | |
| 5,500 ft | 290° at 9 kt | −9 kt | 2 °C | 129 kt | 13 h 42 min | 6:25 pm EDT (22:25 UTC) |
| 7,500 ft | 270° at 12 kt | −13 kt | 9 °C | 133 kt | 13 h 17 min | 6:00 pm EDT (22:00 UTC) |
| 9,500 ft | 270° at 17 kt | −18 kt | 6 °C | 138 kt | 12 h 48 min | 5:31 pm EDT (21:31 UTC) |
| 11,500 ft | 260° at 22 kt | −23 kt | 3 °C | 143 kt | 12 h 21 min | 5:04 pm EDT (21:04 UTC) |
| 13,500 ft | 270° at 24 kt | −25 kt | -1 °C | 145 kt | 12 h 11 min | 4:54 pm EDT (20:54 UTC) |
| 15,500 ft | 270° at 25 kt | −27 kt | -6 °C | 147 kt | 12 h 01 min | 4:44 pm EDT (20:44 UTC) |
| 17,500 ft | 270° at 26 kt | −28 kt | -10 °C | 148 kt | 11 h 56 min | 4:39 pm EDT (20:39 UTC) |
| 18,000 ft FL180 | 270° at 26 kt | −28 kt | -11 °C | 148 kt | 11 h 56 min | 4:39 pm EDT (20:39 UTC) |
| 24,000 ft FL240 | 270° at 27 kt | −30 kt | -22 °C | 150 kt | 11 h 47 min | 4:30 pm EDT (20:30 UTC) |
| 30,000 ft FL300 | 270° at 33 kt | −36 kt | -37 °C | 156 kt | 11 h 20 min | 4:03 pm EDT (20:03 UTC) |
| 34,000 ft FL340 | 270° at 43 kt | −46 kt | -44 °C | 166 kt | 10 h 39 min | 3:22 pm EDT (19:22 UTC) |
| 39,000 ft FL390 | 270° at 56 kt | −58 kt | -50 °C | 178 kt | 9 h 56 min | 2:39 pm EDT (18:39 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BIL | used from 0 nm out; 85 nm from the line | 300/14 | 270/19 -2° | 260/26 -2° | 220/28 -13° | 210/51 -25° | 220/56 -33° | 220/61 -39° | 220/72 -45° | |
| MLS | used from 150 nm out; 48 nm from the line | 290/17 -1° | 250/18 0° | 230/25 0° | 220/31 -11° | 220/32 -24° | 220/50 -32° | 220/60 -38° | 230/71 -46° | |
| DIK | used from 300 nm out; 27 nm from the line | 190/12 5° | 230/29 7° | 220/33 1° | 220/43 -11° | 210/47 -23° | 220/53 -33° | 240/56 -40° | 250/72 -47° | |
| MOT | used from 449 nm out; 91 nm from the line | 120/14 4° | 190/25 5° | 220/41 1° | 240/43 -11° | 230/39 -22° | 220/44 -38° | 240/62 -42° | 250/73 -48° | |
| GFK | used from 499 nm out; 75 nm from the line | 080/18 | L/V 11° | 260/22 7° | 250/48 3° | 260/51 -11° | 250/44 -22° | 260/34 -38° | 260/53 -44° | 270/66 -49° |
| AXN | used from 649 nm out; 88 nm from the line | 110/6 | 260/10 16° | 240/17 12° | 250/20 5° | 260/29 -10° | 260/35 -22° | 260/29 -38° | 270/48 -41° | 270/61 -48° |
| DLH | used from 699 nm out; 69 nm from the line | 090/31 | 250/7 14° | 250/26 11° | 250/36 4° | 280/36 -11° | 290/35 -22° | 300/39 -38° | 280/41 -44° | 280/66 -49° |
| GRB | used from 949 nm out; 165 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° |
| TVC | used from 999 nm out; 149 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° |
| BUF | used from 1248 nm out; 234 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° |
| SYR | used from 1398 nm out; 189 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° |
| BML | used from 1498 nm out; 158 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° |
| BGR | used from 1698 nm out; 45 nm from the line | 300/13 | 320/12 9° | 320/11 5° | 320/16 -1° | 300/25 -12° | 290/33 -23° | 280/38 -40° | 260/56 -45° | 250/75 -52° |
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 | no report just now | 4,473 ft | ||||
| BIL Billings, MT | 110 nm out, 22 nm south of the line, tower | no report just now | 3,662 ft | ||||
| DIK Dickinson, ND | 349 nm out, 4 nm southeast of the line | no report just now | 2,592 ft | ||||
| BIS Bismarck, ND | 439 nm out, 16 nm south of the line, tower | no report just now | 1,661 ft | ||||
| FAR Fargo, ND | 599 nm out, 19 nm south of the line, tower | no report just now | 901 ft | ||||
| BFW Silver Bay, MN | 819 nm out, 4 nm south of the line | no report just now | 1,088 ft | ||||
| CMX Hancock, MI | 939 nm out, 5 nm south of the line | no report just now | 1,095 ft | ||||
| CYSB Sudbury, | 1258 nm out, 7 nm southwest of the line | no report just now | 1,141 ft | ||||
| CYJN St Jean, | 1578 nm out, 23 nm south of the line | no report just now | 136 ft | ||||
| CYSC Sherbrooke, | 1638 nm out, 4 nm northeast of the line | no report just now | 792 ft | ||||
| BGR Bangor, ME | destination | no report just now | 192 ft |
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 BGR when you get there the forecast at the estimated arrival, 2:39 pm EDT (18:39 UTC)
BGR has no terminal forecast; use the nearest airport that does.
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 BZN 6:42 pm MDT (00:42 UTC), at BGR 5:56 pm EDT (21:56 UTC) (civil twilight ends 6:25 pm EDT (22:25 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: Bozeman Yellowstone International, Bangor International.