Boise Air Trml/Gowen Field to Philadelphia International BOI → PHL
1,831 nautical miles (2,107 statute miles) east on a straight line, true course 083°, about 070° magnetic at the departure end (variation 13E). At 120 knots that is 10 h 50 min at the quickest height in today's winds (39,000 ft, a 49-knot tailwind), arriving about 1:57 pm EDT (17:57 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 TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 139 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 20 to 458 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 418 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 806 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 299 to 498 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 318 to 537 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 338 to 557 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 965 to 1154 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 527 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1602 to 1742 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 159 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, LND, RAP, PIR, FSD, MCW, LSE, DBQ, JOT, MKG, FWA, CLE, AGC, PSB, AVP, ACY). 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 | 240° at 15 kt | −12 kt | 132 kt | 13 h 52 min | 4:59 pm EDT (20:59 UTC) | |
| 5,500 ft | 240° at 10 kt | −10 kt | 12 °C | 130 kt | 14 h 05 min | 5:12 pm EDT (21:12 UTC) |
| 7,500 ft | 240° at 12 kt | −11 kt | 11 °C | 131 kt | 13 h 59 min | 5:06 pm EDT (21:06 UTC) |
| 9,500 ft | 240° at 13 kt | −12 kt | 7 °C | 132 kt | 13 h 52 min | 4:59 pm EDT (20:59 UTC) |
| 11,500 ft | 240° at 15 kt | −13 kt | 4 °C | 133 kt | 13 h 46 min | 4:53 pm EDT (20:53 UTC) |
| 13,500 ft | 240° at 17 kt | −15 kt | 0 °C | 135 kt | 13 h 34 min | 4:41 pm EDT (20:41 UTC) |
| 15,500 ft | 240° at 19 kt | −18 kt | -5 °C | 138 kt | 13 h 16 min | 4:23 pm EDT (20:23 UTC) |
| 17,500 ft | 250° at 21 kt | −21 kt | -9 °C | 141 kt | 12 h 59 min | 4:06 pm EDT (20:06 UTC) |
| 18,000 ft FL180 | 250° at 22 kt | −21 kt | -10 °C | 141 kt | 12 h 59 min | 4:06 pm EDT (20:06 UTC) |
| 24,000 ft FL240 | 250° at 29 kt | −28 kt | -22 °C | 148 kt | 12 h 22 min | 3:29 pm EDT (19:29 UTC) |
| 30,000 ft FL300 | 250° at 35 kt | −34 kt | -34 °C | 154 kt | 11 h 53 min | 3:00 pm EDT (19:00 UTC) |
| 34,000 ft FL340 | 260° at 44 kt | −45 kt | -40 °C | 165 kt | 11 h 06 min | 2:13 pm EDT (18:13 UTC) |
| 39,000 ft FL390 | 260° at 48 kt | −49 kt | -48 °C | 169 kt | 10 h 50 min | 1:57 pm EDT (17:57 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; 63 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° | |
| LND | used from 249 nm out; 87 nm from the line | 200/23 6° | 220/31 1° | 220/39 -11° | 230/39 -23° | 220/51 -28° | 220/66 -37° | 230/68 -45° | ||
| RAP | used from 448 nm out; 98 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 647 nm out; 32 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° | |
| FSD | used from 746 nm out; 75 nm from the line | 190/9 | 230/30 18° | 240/23 13° | 240/20 6° | 260/22 -9° | 250/31 -21° | 250/43 -36° | 260/49 -43° | 270/53 -47° |
| MCW | used from 945 nm out; 30 nm from the line | 220/44 | 250/30 17° | 230/14 12° | 240/17 6° | 250/22 -8° | 270/29 -20° | 250/34 -34° | 260/52 -43° | 260/59 -51° |
| LSE | used from 1045 nm out; 44 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° |
| DBQ | used from 1095 nm out; 40 nm from the line | 230/33 | 250/30 16° | 280/15 9° | 260/15 5° | 260/21 -7° | 260/24 -20° | 250/37 -33° | 270/42 -43° | 280/63 -52° |
| JOT | used from 1194 nm out; 73 nm from the line | 250/23 | 270/22 15° | 250/16 10° | 240/9 4° | 280/22 -7° | 280/29 -19° | 300/29 -34° | 290/50 -43° | 300/64 -52° |
| MKG | used from 1244 nm out; 55 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| FWA | used from 1344 nm out; 72 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
| CLE | used from 1443 nm out; 49 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° |
| AGC | used from 1592 nm out; 43 nm from the line | 350/14 | 330/20 11° | 340/18 8° | 330/17 3° | 340/22 -11° | 340/31 -22° | 330/33 -36° | 300/34 -41° | 300/35 -47° |
| PSB | used from 1642 nm out; 25 nm from the line | 360/13 13° | 330/14 7° | 300/11 3° | 290/12 -11° | 240/23 -23° | 270/25 -36° | 250/34 -40° | 250/45 -48° | |
| AVP | used from 1742 nm out; 76 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° |
| ACY | used from 1791 nm out; 59 nm from the line | 220/19 | 220/18 14° | 210/36 9° | 210/35 5° | 220/36 -8° | 240/49 -21° | 220/90 -31° | 230/103 -40° | 230/81 -50° |
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, 14 nm south of the line, tower | no report just now | 5,319 ft | ||||
| JAC Jackson, WY | 239 nm out, 20 nm south of the line, tower | no report just now | 6,451 ft | ||||
| ECS Newcastle, WY | 518 nm out, 10 nm south of the line | no report just now | 4,177 ft | ||||
| RAP Rapid City, SD | 567 nm out, 3 nm east of the line, tower | no report just now | 3,203 ft | ||||
| FSD Sioux Falls, SD | 846 nm out, 8 nm south of the line, tower | no report just now | 1,430 ft | ||||
| DEH Decorah, IA | 1065 nm out, 3 nm north of the line | no report just now | 1,157 ft | ||||
| ENW Kenosha, WI | 1234 nm out, 6 nm south of the line, tower | no report just now | 742 ft | ||||
| AZO Kalamazoo, MI | 1344 nm out, 3 nm south of the line, tower | no report just now | 873 ft | ||||
| BKL Cleveland, OH | 1523 nm out, 1 nm northwest of the line, tower | no report just now | 583 ft | ||||
| LNS Lancaster, PA | 1781 nm out, 3 nm southwest of the line, tower | no report just now | 402 ft | ||||
| PHL Philadelphia, PA | destination | no report just now | 35 ft |
The highest airport on this list sits at 6,451 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PHL when you get there the forecast at the estimated arrival, 1:57 pm EDT (17:57 UTC)
PHL has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 1543 nm along the route · a VIP movement · today · ZOB
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 1563 nm along the route · a VIP movement · today · ZOB
- 6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 1 nm from the route, 1572 nm along the route · security · today · ZOB
Daylight
Sunset at BOI 7:05 pm MDT (01:05 UTC), at PHL 6:26 pm EDT (22:26 UTC) (civil twilight ends 6:53 pm EDT (22:53 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
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, Philadelphia International.