New York Stewart International to Bozeman Yellowstone International SWF → BZN
1,615 nautical miles (1,859 statute miles) west on a straight line, true course 292°, about 306° magnetic at the departure end (variation 14W). At 120 knots that is 14 h 03 min at the quickest height in today's winds (4,500 ft, a 5-knot headwind), arriving about 1:39 pm MDT (19:39 UTC). Right now SWF is marginal VFR, wind from the north-northeast (030°) at 7 knots; BZN is low IFR, wind from the south (180°) 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: 2 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 498 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 179 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 179 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 658 to 778 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 648 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 1376 to 1436 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1386 to 1495 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). Near the route, 1396 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 110 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 100 nm of the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. 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 SWF.
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 15 forecast points nearest it (AVP, SYR, BUF, CLE, TVC, GRB, LSE, MSP, AXN, ABR, PIR, DIK, MLS, BIL, DLN). 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 7 kt | +5 kt | 7 °C | 115 kt | 14 h 03 min | 1:39 pm MDT (19:39 UTC) |
| 6,500 ft | 250° at 7 kt | +7 kt | 12 °C | 113 kt | 14 h 18 min | 1:54 pm MDT (19:54 UTC) |
| 8,500 ft | 240° at 11 kt | +10 kt | 9 °C | 110 kt | 14 h 41 min | 2:17 pm MDT (20:17 UTC) |
| 10,500 ft | 240° at 16 kt | +14 kt | 5 °C | 106 kt | 15 h 14 min | 2:50 pm MDT (20:50 UTC) |
| 12,500 ft | 240° at 21 kt | +19 kt | 2 °C | 101 kt | 15 h 59 min | 3:35 pm MDT (21:35 UTC) |
| 14,500 ft | 250° at 23 kt | +21 kt | -2 °C | 99 kt | 16 h 19 min | 3:55 pm MDT (21:55 UTC) |
| 16,500 ft | 250° at 25 kt | +24 kt | -7 °C | 96 kt | 16 h 49 min | 4:25 pm MDT (22:25 UTC) |
| 18,000 ft FL180 | 260° at 26 kt | +26 kt | -10 °C | 94 kt | 17 h 11 min | 4:47 pm MDT (22:47 UTC) |
| 24,000 ft FL240 | 260° at 30 kt | +29 kt | -22 °C | 91 kt | 17 h 45 min | 5:21 pm MDT (23:21 UTC) |
| 30,000 ft FL300 | 260° at 33 kt | +34 kt | -36 °C | 86 kt | 18 h 47 min | 6:23 pm MDT (00:23 UTC) |
| 34,000 ft FL340 | 260° at 42 kt | +42 kt | -43 °C | 78 kt | 20 h 42 min | 8:18 pm MDT (02:18 UTC) |
| 39,000 ft FL390 | 270° at 55 kt | +55 kt | -50 °C | 65 kt | 24 h 51 min | 12:27 am MDT (06:27 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| AVP | used from 0 nm out; 53 nm from the line | 150/5 | 350/13 12° | 270/20 8° | 260/17 4° | 260/25 -11° | 240/31 -22° | 240/54 -35° | 230/61 -41° | 240/55 -49° |
| SYR | used from 100 nm out; 59 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 150 nm out; 49 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° |
| CLE | used from 349 nm out; 128 nm from the line | 340/7 | 010/16 13° | 350/18 8° | 350/20 3° | 340/31 -10° | 340/46 -21° | 340/54 -37° | 330/62 -44° | 340/65 -49° |
| TVC | used from 399 nm out; 118 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 598 nm out; 20 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° |
| LSE | used from 698 nm out; 83 nm from the line | 230/40 | 240/24 17° | 240/13 10° | 250/13 6° | 280/22 -9° | 250/28 -21° | 250/41 -34° | 260/42 -44° | 270/62 -53° |
| MSP | used from 798 nm out; 44 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 897 nm out; 41 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 997 nm out; 62 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° |
| PIR | used from 1147 nm out; 88 nm from the line | 170/22 19° | 190/25 13° | 210/32 6° | 240/23 -9° | 250/32 -21° | 250/38 -36° | 260/44 -40° | 260/52 -47° | |
| DIK | used from 1196 nm out; 71 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 1346 nm out; 38 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 1446 nm out; 36 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° | |
| DLN | used from 1595 nm out; 76 nm from the line | 090/6 -6° | 240/22 -4° | 210/34 -16° | 210/62 -25° | 210/66 -34° | 210/82 -36° | 220/77 -42° |
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 |
|---|---|---|---|---|---|---|---|
| SWF New York, NY | departure | marginal VFR Sky: scattered clouds at 700 feet, overcast at 1,200 feet Weather: mist | from the north-northeast (030°) at 7 knots | 6 mi | 1,200 ft | 490 ft | 12:45 am EDT (04:45 UTC) |
| ELM Elmira/Corning, NY | 130 nm out, 8 nm southwest of the line, tower | low IFR Sky: overcast at 200 feet Weather: mist | calm | 5 mi | 200 ft | 955 ft | 05:06 UTC |
| BUF Buffalo, NY | 219 nm out, 10 nm north of the line, tower | VFR Sky: a broken layer at 11,000 feet, a broken layer at 13,000 feet | calm | 10+ mi | 11,000 ft | 726 ft | 04:54 UTC |
| MBS Saginaw, MI | 459 nm out, 24 nm south of the line, tower | VFR | from the south-southwest (200°) at 6 knots | 10+ mi | none | 668 ft | 04:53 UTC |
| GRB Green Bay, WI | 638 nm out, 10 nm southwest of the line, tower | VFR | from the south (190°) at 4 knots | 10+ mi | none | 695 ft | 04:53 UTC |
| CWA Mosinee, WI | 708 nm out, 5 nm south of the line, tower | VFR | from the south (190°) at 7 knots | 10+ mi | none | 1,277 ft | 05:15 UTC |
| STC St Cloud, MN | 897 nm out, 9 nm north of the line, tower | VFR | from the north-northwest (340°) at 4 knots | 10+ mi | none | 1,030 ft | 04:53 UTC |
| MOX Morris, MN | 977 nm out, 2 nm west of the line | marginal VFR Weather: mist | from the northwest (320°) at 10 knots | 4 mi | none | 1,135 ft | 05:15 UTC |
| LEM Lemmon, SD | 1236 nm out, 2 nm north of the line | no report just now | 2,572 ft | ||||
| BIL Billings, MT | 1505 nm out, 5 nm south of the line, tower | marginal VFR Sky: overcast at 1,200 feet Weather: light rain, light snow, mist | from the north-northwest (340°) at 7 knots | 4 mi | 1,200 ft | 3,662 ft | 04:53 UTC |
| BZN Bozeman, MT | destination | low IFR Sky: a broken layer at 300 feet, overcast at 2,400 feet Weather: light snow, mist | from the south (180°) at 3 knots | 2.5 mi | 300 ft | 4,473 ft | 11:20 pm MDT (05:20 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 BZN when you get there the forecast at the estimated arrival, 1:39 pm MDT (19:39 UTC)
Wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, overcast at 1,000 feet marginal VFR
The whole forecast for BZN
- From Mon 12:00 am MDT (06:00 UTC): wind light and variable, visibility 1 mile, light snow, a broken layer at 400 feet, overcast at 1,000 feet
- From Mon 3:00 am MDT (09:00 UTC): wind light and variable, visibility 6 miles, mist, overcast at 800 feet
- From Mon 10:00 am MDT (16:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, overcast at 1,000 feet
- From Mon 2:00 pm MDT (20:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, a broken layer at 1,500 feet
- From Mon 6:00 pm MDT (00:00 UTC): wind light and variable, visibility 6 miles, mist, scattered clouds at 800 feet, a broken layer at 2,000 feet
The forecast for SWF, the departure
- From Mon 2:00 am EDT (06:00 UTC): wind from the northeast at 7 knots, visibility 6 miles, mist, a few clouds at 400 feet, a broken layer at 800 feet and more above
- From Mon 7:00 am EDT (11:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, a broken layer at 800 feet, overcast at 1,500 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north-northeast at 6 knots, visibility more than 6 miles, a broken layer at 2,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north at 7 knots, visibility more than 6 miles, a few clouds at 2,000 feet, a broken layer at 5,000 feet
- From Mon 4:00 pm EDT (20:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
- From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 6 nm from the route, 867 nm along the route · security · until 19 October · ZMP
Daylight
Sunset at SWF 6:20 pm EDT (22:20 UTC), at BZN 6:44 pm MDT (00:44 UTC) (civil twilight ends 7:14 pm MDT (01:14 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: New York Stewart International, Bozeman Yellowstone International.