Plan a flight · Mon 8:42 am MDT (14:42 UTC)

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 58 min at the quickest height in today's winds (39,000 ft, a 47-knot tailwind), arriving about 9:40 pm EDT (01:40 UTC), after sunset at the destination. Right now BOI is VFR, wind from the northwest (310°) at 4 knots; PHL is marginal VFR, wind from the north (360°) at 8 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: 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 ZULU 2C: moderate icing up to 23,000 ft. Over the first 368 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 40 to 398 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 70 to 916 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 route from 1533 to 1692 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1602 to 1752 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Near the route, 1702 nm along the route.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 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 BOI.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

E170 at 28,000 ft, 30 nm north, 7:10 am MDT (13:10 UTC): moderate chop turbulence. 1334 nm along the route, 30 nm north of the line.
as filed, and in English
```
GRR UA /OV VIO/TM 1310/FL280/TP E170/TB OCNL MOD CHOP
```
Report
a routine report filed through GRR
Where
over VIO
Time
13:10 UTC
Height
at 28,000 ft
Aircraft
E170
Turbulence
occasional moderate chop
B738 at 36,000 ft, 9 nm southwest, 6:54 am MDT (12:54 UTC): moderate turbulence. At the destination end, 9 nm southwest of the line.
as filed, and in English
```
PTW UA /OV MXE240005/TM 1254/FL360/TP B738/TB MOD
```
Report
a routine report filed through PTW
Where
5 nm southwest (240°) of MXE
Time
12:54 UTC
Height
at 36,000 ft
Aircraft
B738
Turbulence
moderate
MU2 at 12,000 ft, 14 nm south, 8:07 am MDT (14:07 UTC): a routine report with nothing remarked on. 80 nm along the route, 14 nm south of the line.
as filed, and in English
```
SUN UA /OV SUN/TM 1407/FL120/TP MU2/SK BASE 055 TOP 118 /ZLC
```
Report
a routine report filed through SUN
Where
over SUN
Time
14:07 UTC
Height
at 12,000 ft
Aircraft
MU2
Sky
base 5,500 ft top 11,800 ft; zlc
UAL1095 at 36,000 ft, 33 nm south, 7:34 am MDT (13:34 UTC): light turbulence, -38 °C, wind 236° at 61 knots. 597 nm along the route, 33 nm south of the line.
as filed, and in English
```
ARP UAL1095 4328N 10223W 1334 F360 MS38 236/061KT TB LIGHT SK IC
```
Report
a routine report filed through ARP
SF50 at 4,000 ft, 28 nm north, 7:47 am MDT (13:47 UTC): no turbulence, no icing. 697 nm along the route, 28 nm north of the line.
as filed, and in English
```
PIR UA /OV PIR/TM 1347/FL040/TP SF50/SK BASE008-TOP040/TB NEG/IC NEG
```
Report
a routine report filed through PIR
Where
over PIR
Time
13:47 UTC
Height
at 4,000 ft
Aircraft
SF50
Sky
BASE008-TOP040
Turbulence
none
Icing
none
UAL1095 at 36,000 ft, 6 nm southwest, 7:00 am MDT (13:00 UTC): no turbulence, -41 °C, wind 253° at 52 knots. 846 nm along the route, 6 nm southwest of the line.
as filed, and in English
```
ARP UAL1095 4338N 09646W 1300 F360 MS41 253/052KT TB NONE SK CLEAR IC
```
Report
a routine report filed through ARP
B38M at 32,000 ft, 39 nm south, 5:45 am MDT (11:45 UTC): light chop turbulence. 906 nm along the route, 39 nm south of the line.
as filed, and in English
```
FOD UA /OV FOD285060/TM 1145/FL320/TP B38M/TB CONS LGT CHOP OCNL MOD CHOP
```
Report
a routine report filed through FOD
Where
60 nm west (285°) of FOD
Time
11:45 UTC
Height
at 32,000 ft
Aircraft
B38M
Turbulence
continuous light chop occasional moderate chop
BE36 at 6,000 ft, 8 nm north, 7:12 am MDT (13:12 UTC): no turbulence. 945 nm along the route, 8 nm north of the line.
as filed, and in English
```
FRM UA /OV FRM/TM 1312/FL060/TP BE36/TB NEG
```
Report
a routine report filed through FRM
Where
over FRM
Time
13:12 UTC
Height
at 6,000 ft
Aircraft
BE36
Turbulence
none
P46T at 31,000 ft, 45 nm south, 7:37 am MDT (13:37 UTC): light chop turbulence. 1035 nm along the route, 45 nm south of the line.
as filed, and in English
```
ALO UA /OV ALO270005/TM 1337/FL310/TP P46T/TB INTMT LGT CHOP
```
Report
a routine report filed through ALO
Where
5 nm west (270°) of ALO
Time
13:37 UTC
Height
at 31,000 ft
Aircraft
P46T
Turbulence
intermittent light chop
B752 at 34,000 ft, 33 nm south, 6:23 am MDT (12:23 UTC): light chop turbulence. 1095 nm along the route, 33 nm south of the line.
as filed, and in English
```
DBQ UA /OV DBQ300020/TM 1223/FL340/TP B752/TB OCNL LGT CHOP
```
Report
a routine report filed through DBQ
Where
20 nm northwest (300°) of DBQ
Time
12:23 UTC
Height
at 34,000 ft
Aircraft
B752
Turbulence
occasional light chop
C510 at 17,000 ft, 12 nm north, 7:27 am MDT (13:27 UTC): no turbulence. 1135 nm along the route, 12 nm north of the line.
as filed, and in English
```
LNR UA /OV LNR/TM 1327/FL170/TP C510/TB NEG
```
Report
a routine report filed through LNR
Where
over LNR
Time
13:27 UTC
Height
at 17,000 ft
Aircraft
C510
Turbulence
none
PC12 at 20,000 ft, 12 nm north, 7:27 am MDT (13:27 UTC): no turbulence. 1135 nm along the route, 12 nm north of the line.
as filed, and in English
```
LNR UA /OV 0WI4/TM 1327/FL200/TP PC12/TB NEG
```
Report
a routine report filed through LNR
Where
over 0WI4
Time
13:27 UTC
Height
at 20,000 ft
Aircraft
PC12
Turbulence
none
B39M at 36,000 ft, 28 nm south, 7:18 am MDT (13:18 UTC): no turbulence. 1244 nm along the route, 28 nm south of the line.
as filed, and in English
```
PWK UA /OV OBK/TM 1318/FL360/TP B39M/TB NEG
```
Report
a routine report filed through PWK
Where
over OBK
Time
13:18 UTC
Height
at 36,000 ft
Aircraft
B39M
Turbulence
none
B39M at 34,000 ft, 14 nm northeast, 8:01 am MDT (14:01 UTC): no turbulence. 1284 nm along the route, 14 nm northeast of the line.
as filed, and in English
```
BIV UA /OV PMM300030/TM 1401/FL340/TP B39M/TB NEG
```
Report
a routine report filed through BIV
Where
30 nm northwest (300°) of PMM
Time
14:01 UTC
Height
at 34,000 ft
Aircraft
B39M
Turbulence
none

16 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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	250° at 16 kt	−15 kt		135 kt	13 h 34 min	12:16 am EDT (04:16 UTC)
5,500 ft	270° at 13 kt	−13 kt	7 °C	133 kt	13 h 46 min	12:28 am EDT (04:28 UTC)
7,500 ft	260° at 14 kt	−14 kt	10 °C	134 kt	13 h 40 min	12:22 am EDT (04:22 UTC)
9,500 ft	260° at 17 kt	−17 kt	7 °C	137 kt	13 h 22 min	12:04 am EDT (04:04 UTC)
11,500 ft	260° at 19 kt	−19 kt	3 °C	139 kt	13 h 10 min	11:52 pm EDT (03:52 UTC)
13,500 ft	250° at 21 kt	−21 kt	-1 °C	141 kt	12 h 59 min	11:41 pm EDT (03:41 UTC)
15,500 ft	250° at 24 kt	−23 kt	-6 °C	143 kt	12 h 48 min	11:30 pm EDT (03:30 UTC)
17,500 ft	250° at 26 kt	−25 kt	-10 °C	145 kt	12 h 38 min	11:20 pm EDT (03:20 UTC)
18,000 ft FL180	250° at 27 kt	−26 kt	-11 °C	146 kt	12 h 32 min	11:14 pm EDT (03:14 UTC)
24,000 ft FL240	240° at 35 kt	−32 kt	-23 °C	152 kt	12 h 03 min	10:45 pm EDT (02:45 UTC)
30,000 ft FL300	250° at 39 kt	−39 kt	-34 °C	159 kt	11 h 31 min	10:13 pm EDT (02:13 UTC)
34,000 ft FL340	260° at 42 kt	−44 kt	-39 °C	164 kt	11 h 10 min	9:52 pm EDT (01:52 UTC)
39,000 ft FL390	270° at 44 kt	−47 kt	-46 °C	167 kt	10 h 58 min	9:40 pm EDT (01:40 UTC)

Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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		360/9 1°	L/V -5°	180/10 -12°	200/58 -21°	180/62 -31°	200/41 -31°	210/34 -32°	200/29 -41°
PIH	used from 100 nm out; 63 nm from the line		L/V	180/8 -1°	190/21 -6°	210/56 -18°	190/64 -28°	210/68 -31°	210/60 -36°	210/54 -42°
LND	used from 249 nm out; 87 nm from the line			220/16 3°	230/26 -1°	210/30 -14°	220/57 -26°	220/60 -31°	220/62 -38°	220/52 -44°
RAP	used from 448 nm out; 98 nm from the line		310/18 6°	270/15 6°	260/20 2°	240/28 -11°	240/42 -23°	240/47 -35°	230/47 -36°	240/56 -44°
PIR	used from 647 nm out; 32 nm from the line		300/15 10°	270/10 10°	220/18 4°	220/36 -11°	230/43 -21°	240/48 -33°	240/51 -37°	240/55 -44°
FSD	used from 746 nm out; 75 nm from the line	260/9	210/16 18°	220/27 14°	230/28 6°	240/39 -9°	240/48 -22°	260/52 -32°	260/61 -38°	260/60 -46°
MCW	used from 945 nm out; 30 nm from the line	220/19	210/29 20°	230/35 13°	250/35 5°	250/33 -9°	260/44 -21°	260/46 -33°	270/58 -37°	270/59 -46°
LSE	used from 1045 nm out; 44 nm from the line	240/16	230/27 20°	250/35 12°	260/28 5°	260/30 -9°	260/37 -21°	260/38 -36°	280/44 -37°	280/52 -47°
DBQ	used from 1095 nm out; 40 nm from the line	250/26	240/32 19°	250/35 11°	260/37 5°	270/35 -9°	270/40 -21°	270/43 -35°	280/49 -37°	280/58 -46°
JOT	used from 1194 nm out; 73 nm from the line	230/30	250/26 16°	270/27 11°	280/34 5°	290/32 -8°	280/37 -21°	280/40 -36°	290/46 -37°	290/56 -47°
MKG	used from 1244 nm out; 55 nm from the line	240/27	240/26 15°	270/27 9°	280/27 5°	280/28 -9°	280/32 -22°	270/41 -38°	290/44 -41°	300/60 -48°
FWA	used from 1344 nm out; 72 nm from the line	250/18	260/22 15°	260/27 7°	290/26 6°	290/28 -8°	290/39 -20°	280/36 -37°	290/54 -39°	310/60 -48°
CLE	used from 1443 nm out; 49 nm from the line	280/17	270/17 14°	280/22 10°	290/26 4°	290/25 -8°	280/31 -21°	280/35 -36°	280/43 -44°	300/53 -48°
AGC	used from 1592 nm out; 43 nm from the line	270/15	320/17 14°	320/22 9°	340/23 4°	310/25 -8°	290/30 -19°	280/40 -36°	290/49 -45°	300/53 -49°
PSB	used from 1642 nm out; 25 nm from the line		330/23 14°	340/24 9°	340/25 3°	320/24 -8°	300/29 -20°	310/39 -36°	310/52 -46°	310/56 -50°
AVP	used from 1742 nm out; 76 nm from the line	330/21	340/24 14°	350/27 9°	350/25 3°	330/29 -8°	310/31 -20°	330/41 -36°	330/57 -46°	320/55 -51°
ACY	used from 1791 nm out; 59 nm from the line	010/26	360/24 11°	350/28 8°	350/26 4°	340/29 -8°	350/39 -21°	350/57 -35°	350/52 -43°	310/50 -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	VFR Sky: overcast at 9,500 feet	from the northwest (310°) at 4 knots	10+ mi	9,500 ft	2,871 ft	7:53 am MDT (13:53 UTC)
SUN Hailey, ID	80 nm out, 14 nm south of the line, tower	low IFR Sky: a broken layer at 400 feet, overcast at 900 feet Weather: light rain	from the southeast (130°) at 10 knots	4 mi	400 ft	5,319 ft	13:47 UTC
JAC Jackson, WY	239 nm out, 20 nm south of the line, tower	VFR Sky: overcast at 5,000 feet	from the north-northeast (020°) at 7 knots	10+ mi	5,000 ft	6,451 ft	13:56 UTC
ECS Newcastle, WY	518 nm out, 10 nm south of the line	low IFR Sky: a broken layer at 400 feet, overcast at 800 feet Weather: mist	from the northwest (320°) at 16 knots, gusting to 20	5 mi	400 ft	4,177 ft	14:35 UTC
RAP Rapid City, SD	567 nm out, 3 nm east of the line, tower	low IFR Sky: overcast at 400 feet Weather: mist	from the north-northeast (020°) at 8 knots	6 mi	400 ft	3,203 ft	14:32 UTC
FSD Sioux Falls, SD	846 nm out, 8 nm south of the line, tower	VFR Sky: a few clouds at 10,000 feet, scattered clouds at 25,000 feet	from the northeast (050°) at 4 knots	10+ mi	none	1,430 ft	13:56 UTC
DEH Decorah, IA	1065 nm out, 3 nm north of the line	VFR	from the south-southwest (200°) at 7 knots, gusting to 15	10+ mi	none	1,157 ft	14:35 UTC
ENW Kenosha, WI	1234 nm out, 6 nm south of the line, tower	VFR	from the south-southwest (210°) at 8 knots	10+ mi	none	742 ft	13:53 UTC
AZO Kalamazoo, MI	1344 nm out, 3 nm south of the line, tower	VFR	from the south (180°) at 7 knots	7 mi	none	873 ft	13:53 UTC
BKL Cleveland, OH	1523 nm out, 1 nm northwest of the line, tower	marginal VFR Sky: overcast at 1,600 feet	from the west-southwest (240°) at 9 knots	10+ mi	1,600 ft	583 ft	13:53 UTC
LNS Lancaster, PA	1781 nm out, 3 nm southwest of the line, tower	VFR Sky: a few clouds at 2,000 feet	variable at 6 knots, gusting to 16	10+ mi	none	402 ft	14:18 UTC
PHL Philadelphia, PA	destination	marginal VFR Sky: a broken layer at 1,600 feet, a broken layer at 6,000 feet, a broken layer at 20,000 feet	from the north (360°) at 8 knots	10+ mi	1,600 ft	35 ft	10:32 am EDT (14:32 UTC)

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, 9:40 pm EDT (01:40 UTC)

Wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet VFR

The whole forecast for PHL

From Mon 10:00 am EDT (14:00 UTC): wind from the north at 12 knots, gusting to 20, visibility more than 6 miles, a broken layer at 1,200 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the north at 14 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 1,200 feet, a broken layer at 2,500 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 13 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
From Mon 6:00 pm EDT (22:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 9:00 pm EDT (01:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
From Tue 12:00 pm EDT (16:00 UTC): wind from the south-southwest at 5 knots, visibility more than 6 miles, a few clouds at 15,000 feet

The forecast for BOI, the departure

From Mon 6:00 am MDT (12:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the northwest at 10 knots, visibility more than 6 miles, a broken layer at 10,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8992 Monroe, MI, Thursday, October 15, 2026 Local on the route, 1443 nm along the route · a VIP movement · starts Thursday 15 October · ZOB
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)). At 120 knots the arrival at PHL is after sunset there (6:26 pm EDT (22:26 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

Radar now, the Pacific Northwest · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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.