Boise Air Trml/Gowen Field to General Edward Lawrence Logan International BOI → BOS
1,963 nautical miles (2,259 statute miles) east on a straight line, true course 076°, about 063° magnetic at the departure end (variation 13E). At 120 knots that is 11 h 09 min at the quickest height in today's winds (39,000 ft, a 56-knot tailwind), arriving about 10:39 am EDT (14:39 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: 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
- SIGMET 1C: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 40 knots, until 10:55 pm MDT (04:55 UTC). Over the route from 468 to 558 nm out.
as issued
WSUS32 KKCI 120255 MKCC WST 120255 CONVECTIVE SIGMET 1C VALID UNTIL 0455Z SD ND MT WY FROM 30WSW DIK-50NW DPR-60WNW RAP-50ENE SHR-30WSW DIK AREA TS MOV FROM 22040KT. TOPS TO FL300.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 389 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 20 to 399 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 route from 60 to 698 nm out.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 70 to 130 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 219 to 448 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). Over the route from 279 to 359 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 309 to 508 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 route from 777 to 867 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 528 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 299 nm of the route.
- AIRMET ZULU 1C: moderate icing up to 25,000 ft. Over the last 259 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1744 to 1893 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the last 169 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 BOI.
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 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 17 forecast points nearest it (BOI, PIH, DLN, BIL, MLS, RAP, PIR, ABR, AXN, MSP, LSE, 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 | 250° at 12 kt | −11 kt | 131 kt | 14 h 59 min | 2:29 pm EDT (18:29 UTC) | |
| 5,500 ft | 240° at 8 kt | −8 kt | 9 °C | 128 kt | 15 h 20 min | 2:50 pm EDT (18:50 UTC) |
| 7,500 ft | 250° at 9 kt | −9 kt | 9 °C | 129 kt | 15 h 13 min | 2:43 pm EDT (18:43 UTC) |
| 9,500 ft | 240° at 12 kt | −11 kt | 6 °C | 131 kt | 14 h 59 min | 2:29 pm EDT (18:29 UTC) |
| 11,500 ft | 240° at 18 kt | −16 kt | 3 °C | 136 kt | 14 h 26 min | 1:56 pm EDT (17:56 UTC) |
| 13,500 ft | 240° at 21 kt | −20 kt | -1 °C | 140 kt | 14 h 01 min | 1:31 pm EDT (17:31 UTC) |
| 15,500 ft | 250° at 24 kt | −23 kt | -6 °C | 143 kt | 13 h 44 min | 1:14 pm EDT (17:14 UTC) |
| 17,500 ft | 250° at 27 kt | −26 kt | -10 °C | 146 kt | 13 h 27 min | 12:57 pm EDT (16:57 UTC) |
| 18,000 ft FL180 | 250° at 27 kt | −27 kt | -11 °C | 147 kt | 13 h 21 min | 12:51 pm EDT (16:51 UTC) |
| 24,000 ft FL240 | 240° at 33 kt | −32 kt | -22 °C | 152 kt | 12 h 55 min | 12:25 pm EDT (16:25 UTC) |
| 30,000 ft FL300 | 250° at 37 kt | −36 kt | -36 °C | 156 kt | 12 h 35 min | 12:05 pm EDT (16:05 UTC) |
| 34,000 ft FL340 | 250° at 47 kt | −46 kt | -42 °C | 166 kt | 11 h 50 min | 11:20 am EDT (15:20 UTC) |
| 39,000 ft FL390 | 260° at 57 kt | −56 kt | -49 °C | 176 kt | 11 h 09 min | 10:39 am EDT (14:39 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BOI | used from 0 nm out; 25 nm from the line | 300/7 2° | 280/5 -4° | 210/16 -9° | 210/60 -20° | 210/75 -29° | 210/63 -32° | 220/64 -32° | 220/54 -39° | |
| PIH | used from 100 nm out; 76 nm from the line | L/V | 240/13 1° | 240/15 -3° | 210/42 -15° | 200/70 -25° | 220/74 -29° | 220/71 -36° | 220/62 -43° | |
| DLN | used from 149 nm out; 65 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° | ||
| BIL | used from 249 nm out; 100 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° | |
| MLS | used from 399 nm out; 98 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° | |
| RAP | used from 498 nm out; 77 nm from the line | 180/23 12° | 200/38 13° | 210/38 6° | 220/28 -10° | 230/34 -21° | 230/37 -36° | 250/52 -38° | 250/59 -46° | |
| PIR | used from 598 nm out; 82 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° | |
| ABR | used from 698 nm out; 47 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° |
| AXN | used from 847 nm out; 42 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° |
| MSP | used from 947 nm out; 28 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° |
| LSE | used from 1046 nm out; 78 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° |
| GRB | used from 1146 nm out; 47 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° |
| TVC | used from 1246 nm out; 43 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° |
| BUF | used from 1495 nm out; 119 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° |
| SYR | used from 1644 nm out; 68 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° |
| ALB | used from 1794 nm out; 24 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° |
| BOS | used from 1893 nm out; 45 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° |
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 |
|---|---|---|---|---|---|---|---|
| BOI Boise, ID | departure | no report just now | 2,871 ft | ||||
| SUN Hailey, ID | 80 nm out, 23 nm south of the line, tower | no report just now | 5,319 ft | ||||
| COD Cody, WY | 319 nm out, 6 nm southwest of the line | no report just now | 5,102 ft | ||||
| SHR Sheridan, WY | 409 nm out, 5 nm southwest of the line | no report just now | 4,021 ft | ||||
| ABR Aberdeen, SD | 767 nm out, 10 nm north of the line | no report just now | 1,301 ft | ||||
| STC St Cloud, MN | 957 nm out, 17 nm north of the line, tower | no report just now | 1,030 ft | ||||
| ANE Minneapolis, MN | 987 nm out, 7 nm south of the line, tower | no report just now | 912 ft | ||||
| TVC Traverse City, MI | 1315 nm out, 2 nm southwest of the line, tower | no report just now | 623 ft | ||||
| OSC Oscoda, MI | 1405 nm out, 7 nm southeast of the line | no report just now | 633 ft | ||||
| RME Rome, NY | 1764 nm out, 5 nm southwest of the line, tower | no report just now | 504 ft | ||||
| SCH Schenectady, NY | 1834 nm out, 10 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 5,319 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, 10:39 am EDT (14:39 UTC)
BOS has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/6656 ANOKA, MN, Monday, October 5, 2026 through Monday, October 19, 2026 Local 5 nm from the route, 987 nm along the route · security · until 19 October · ZMP
- 6/8802 Foxborough, MA, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 18 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZBW
Daylight
Sunset at BOI 7:06 pm MDT (01:06 UTC), at BOS 6:07 pm EDT (22:07 UTC) (civil twilight ends 6:35 pm EDT (22:35 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: Boise Air Trml/Gowen Field, General Edward Lawrence Logan International.