Plan a flight · Mon 9:39 am MDT (15:39 UTC)

Boise Air Trml/Gowen Field to Ted Stevens Anchorage International BOI → ANC

1,597 nautical miles (1,838 statute miles) northwest on a straight line, true course 323°, about 310° magnetic at the departure end (variation 13E). At 120 knots that is 13 h 25 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 9:04 pm AKDT (05:04 UTC), after sunset at the destination. Right now BOI is VFR, wind from the northwest (320°) at 8 knots; ANC is VFR, wind from the south (180°) at 7 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: 32 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 39,000 ft. Over the route from 10 to 329 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 90 to 180 nm out.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 100 to 200 nm out.

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

B190 at 13,000 ft, 32 nm northeast, 8:47 am MDT (14:47 UTC): light to moderate turbulence, no icing, overcast from 2,200 ft to 13,000 ft, remarks: broke out at 2,200 ft during the descent runway 11 akfss. 938 nm along the route, 32 nm northeast of the line.
as filed, and in English
```
KTN UA /OV KTN290010 /TM 1447 /FL130 /TP B190 /SK OVC022-TOP130 /TB OCNL LGT-MOD /IC NEG /RM BROKE OUT 022 DURD RWY 11 AKFSS
```
Report
a routine report filed through KTN
Where
10 nm west (290°) of KTN
Time
14:47 UTC
Height
at 13,000 ft
Aircraft
B190
Sky
overcast from 2,200 ft, tops 13,000 ft
Turbulence
occasional light to moderate
Icing
none
Remarks
broke out at 2,200 ft during the descent runway 11 akfss
C208 at 600 ft, 12 nm northeast, 9:00 am MDT (15:00 UTC): no turbulence, no icing, a broken layer above 600 ft, rain, remarks: during the climb zan. 968 nm along the route, 12 nm northeast of the line.
as filed, and in English
```
AKW UA /OV AKW/TM 1500/FL006/TP C208/SK BKN 006/WX LGT RA/TB NEG/IC NEG/RM DURC ZAN
```
Report
a routine report filed through AKW
Where
over AKW
Time
15:00 UTC
Height
at 600 ft
Aircraft
C208
Sky
a broken layer from 600 ft
Weather
light, rain
Turbulence
none
Icing
none
Remarks
during the climb zan
B737 at 7,000 ft, 19 nm northeast, 8:44 am MDT (14:44 UTC): remarks: during the descent runway 11 ragged tops from 11,500 ft to 7,000 ft akfss. 1078 nm along the route, 19 nm northeast of the line.
as filed, and in English
```
SIT UA /OV SIT /TM 1444 /FL070 /TP B737 /RM DURD RY11 RAGGED TOPS 115-070 AKFSS
```
Report
a routine report filed through SIT
Where
over SIT
Time
14:44 UTC
Height
at 7,000 ft
Aircraft
B737
Remarks
during the descent runway 11 ragged tops from 11,500 ft to 7,000 ft akfss
B190 at 3,000 ft, 26 nm north, 8:16 am MDT (14:16 UTC): no turbulence, no icing, a broken layer from 3,000 ft to 10,000 ft, remarks: during the climb zan. 1457 nm along the route, 26 nm north of the line.
as filed, and in English
```
CDV UA /OV CDV/TM 1416/FL030/TP B190/SK BKN 030-TOP 100/TB NEG/IC NEG/RM DURC ZAN
```
Report
a routine report filed through CDV
Where
over CDV
Time
14:16 UTC
Height
at 3,000 ft
Aircraft
B190
Sky
a broken layer from 3,000 ft, tops 10,000 ft
Turbulence
none
Icing
none
Remarks
during the climb zan
B737 at 9,000 ft, 18 nm southwest, 9:20 am MDT (15:20 UTC): light chop turbulence from 4,000 ft to 9,000 ft, light rime icing from 4,000 ft to 9,000 ft, -7 °C, remarks: during the climb. At the destination end, 18 nm southwest of the line.
as filed, and in English
```
ANC UA /OV TED160020/TM 1520/FL090/TP B737/TA M07/TB LGT CHOP 040-090/IC LGT RIME 040-090/RM DURC
```
Report
a routine report filed through ANC
Where
20 nm south (160°) of TED
Time
15:20 UTC
Height
at 9,000 ft
Aircraft
B737
Temperature
−7 °C
Turbulence
light chop from 4,000 ft to 9,000 ft
Icing
light rime from 4,000 ft to 9,000 ft
Remarks
during the climb
C208 at 4,000 ft, 28 nm southwest, 9:10 am MDT (15:10 UTC): light rime icing above 4,000 ft, -2 °C, remarks: during the descent zan. At the destination end, 28 nm southwest of the line.
as filed, and in English
```
ENA UA /OV ENA032021/TM 1510/FL040/TP C208/TA M2/IC LGT RIME 040/RM DURD ZAN
```
Report
a routine report filed through ENA
Where
21 nm northeast (032°) of ENA
Time
15:10 UTC
Height
at 4,000 ft
Aircraft
C208
Temperature
−2 °C
Icing
light rime at 4,000 ft
Remarks
during the descent zan
C208 at 3,000 ft, 36 nm southwest, 9:00 am MDT (15:00 UTC): no turbulence, no icing, 2 °C, remarks: during the climb zan. At the destination end, 36 nm southwest of the line.
as filed, and in English
```
ENA UA /OV ENA360015/TM 1500/FL030/TP C208/SK SCT 025 BASE030/TA 2/TB NEG/IC NEG/RM DURC ZAN
```
Report
a routine report filed through ENA
Where
15 nm north (360°) of ENA
Time
15:00 UTC
Height
at 3,000 ft
Aircraft
C208
Sky
scattered at 2,500 ft BASE030
Temperature
2 °C
Turbulence
none
Icing
none
Remarks
during the climb zan
DH8D at 4,000 ft, 9 nm west, 8:59 am MDT (14:59 UTC): light rime icing from 4,000 ft to 7,600 ft, -4 °C, remarks: during the climb. At the destination end, 9 nm west of the line.
as filed, and in English
```
ANC UA /OV TED260010/TM 1459/FL040/TP DH8D/SK TOP076/TA M04/IC LGT RIME 040-076/RM DURC
```
Report
a routine report filed through ANC
Where
10 nm west (260°) of TED
Time
14:59 UTC
Height
at 4,000 ft
Aircraft
DH8D
Sky
TOP076
Temperature
−4 °C
Icing
light rime from 4,000 ft to 7,600 ft
Remarks
during the climb
B190 at 5,000 ft, 11 nm north, 8:44 am MDT (14:44 UTC): no turbulence, no icing, remarks: during the descent. At the destination end, 11 nm north of the line.
as filed, and in English
```
ANC UA /OV TED330012/TM 1444/FL050/TP B190/TB NEG/IC NEG/RM DURD
```
Report
a routine report filed through ANC
Where
12 nm northwest (330°) of TED
Time
14:44 UTC
Height
at 5,000 ft
Aircraft
B190
Turbulence
none
Icing
none
Remarks
during the descent
C208 climbing, 48 nm southwest, 6:59 am MDT (12:59 UTC): clear up to 60,000 ft, remarks: during the climb zan. At the destination end, 48 nm southwest of the line.
as filed, and in English
```
ENA UA /OV ENA/TM 1259/FLUNKN/TP C208/SK SKC/RM DURC/ ZAN
```
Report
a routine report filed through ENA
Where
over ENA
Time
12:59 UTC
Height
height not given
Aircraft
C208
Sky
clear
Remarks
during the climb zan

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 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 4 forecast points nearest it (BOI, LWS, YKM, SEA). 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	light and variable	+1 kt	1 °C	119 kt	13 h 25 min	9:04 pm AKDT (05:04 UTC)
6,500 ft	010° at 3 kt	+1 kt	0 °C	119 kt	13 h 25 min	9:04 pm AKDT (05:04 UTC)
8,500 ft	020° at 10 kt	+3 kt	-2 °C	117 kt	13 h 39 min	9:18 pm AKDT (05:18 UTC)
10,500 ft	020° at 18 kt	+6 kt	-4 °C	114 kt	14 h 01 min	9:40 pm AKDT (05:40 UTC)
12,500 ft	020° at 24 kt	+8 kt	-6 °C	112 kt	14 h 16 min	9:55 pm AKDT (05:55 UTC)
14,500 ft	020° at 28 kt	+11 kt	-9 °C	109 kt	14 h 39 min	10:18 pm AKDT (06:18 UTC)
16,500 ft	010° at 31 kt	+14 kt	-13 °C	106 kt	15 h 04 min	10:43 pm AKDT (06:43 UTC)
18,000 ft FL180	010° at 34 kt	+16 kt	-15 °C	104 kt	15 h 21 min	11:00 pm AKDT (07:00 UTC)
24,000 ft FL240	360° at 43 kt	+27 kt	-27 °C	93 kt	17 h 10 min	12:49 am AKDT (08:49 UTC)
30,000 ft FL300	360° at 53 kt	+34 kt	-39 °C	86 kt	18 h 34 min	2:13 am AKDT (10:13 UTC)
34,000 ft FL340	010° at 50 kt	+25 kt	-46 °C	95 kt	16 h 49 min	12:28 am AKDT (08:28 UTC)
39,000 ft FL390	350° at 30 kt	+23 kt	-48 °C	97 kt	16 h 28 min	12:07 am AKDT (08:07 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°
LWS	used from 100 nm out; 81 nm from the line	L/V	L/V -2°	030/6 -5°	050/10 -10°	110/19 -21°	150/22 -31°	130/11 -36°	200/6 -37°	220/21 -40°
YKM	used from 200 nm out; 44 nm from the line	L/V	350/9 0°	040/20 -5°	030/23 -8°	020/41 -18°	010/74 -27°	010/73 -40°	020/54 -44°	350/9 -43°
SEA	used from 299 nm out; 56 nm from the line	L/V	L/V 1°	020/13 -2°	020/27 -4°	010/43 -14°	360/54 -26°	360/63 -40°	010/60 -48°	350/39 -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: a broken layer at 9,500 feet	from the northwest (320°) at 8 knots	10+ mi	9,500 ft	2,871 ft	8:53 am MDT (14:53 UTC)
LGD La Grande, OR	130 nm out, 2 nm east of the line	VFR Sky: overcast at 5,500 feet	from the northwest (320°) at 9 knots	10+ mi	5,500 ft	2,717 ft	14:56 UTC
PSC Pasco, WA	200 nm out, 4 nm north of the line, tower	VFR Sky: a few clouds at 9,000 feet	from the north (360°) at 3 knots	10+ mi	none	410 ft	14:53 UTC
BLI Bellingham, WA	409 nm out, 6 nm southwest of the line, tower	VFR	calm	10+ mi	none	171 ft	14:53 UTC
CYPW Powell River,	509 nm out, 22 nm southwest of the line	VFR Sky: a few clouds at 7,000 feet, a few clouds at 21,000 feet, a few clouds at 25,000 feet	from the north-northeast (030°) at 2 knots	30 mi	none	425 ft	15:00 UTC
HYG Hydaburg, AK	948 nm out, 1 nm northwest of the line	reported, no category	calm		900 ft	0 ft	14:56 UTC
WSB Steamboat Bay, AK	978 nm out, 6 nm west of the line	no report just now				0 ft
IEM Whittier, AK	1557 nm out, 6 nm south of the line	no report just now				39 ft
ANC Anchorage, AK	destination	VFR Sky: a few clouds at 2,700 feet, a broken layer at 4,000 feet, overcast at 7,000 feet	from the south (180°) at 7 knots	10+ mi	4,000 ft	151 ft	6:53 am AKDT (14:53 UTC)

The highest airport on this list sits at 2,871 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ANC when you get there the forecast at the estimated arrival, 9:04 pm AKDT (05:04 UTC)

Wind from the south-southeast at 7 knots, visibility 6 miles, light rain showers, scattered clouds at 1,500 feet, a broken layer at 2,500 feet marginal VFR

The whole forecast for ANC

From Mon 7:00 am AKDT (15:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, showers nearby, a few clouds at 500 feet, scattered clouds at 2,500 feet and more above
At times between Mon 7:00 am AKDT (15:00 UTC) and 9:00 am AKDT (17:00 UTC): visibility 6 miles, light rain showers
From Mon 12:00 pm AKDT (20:00 UTC): wind from the south-southeast at 7 knots, visibility 6 miles, light rain showers, scattered clouds at 1,500 feet, a broken layer at 2,500 feet
From Tue 12:00 am AKDT (08:00 UTC): wind from the south-southeast at 4 knots, visibility 6 miles, mist, showers nearby, a few clouds at 500 feet, scattered clouds at 2,500 feet and more above
From Tue 6:00 am AKDT (14:00 UTC): wind from the south-southeast at 4 knots, visibility 6 miles, light rain showers, mist, scattered clouds at 500 feet, a broken layer at 2,500 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

6/8889 Anchorage, AK, Tuesday, October 13, 2026 through Tuesday, October 13, 2026 Local on the route, at the destination end · a VIP movement · starts tomorrow · ZAN
6/8772 Anchorage, AK, Tuesday, October 13, 2026 through Tuesday, October 13, 2026 Local 4 nm from the route, at the destination end · security · starts tomorrow · ZAN

Daylight

Sunset at BOI 7:05 pm MDT (01:05 UTC), at ANC 6:54 pm AKDT (02:54 UTC) (civil twilight ends 7:37 pm AKDT (03:37 UTC)). At 120 knots the arrival at ANC is after sunset there (6:57 pm AKDT (02:57 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, Alaska · 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, Ted Stevens Anchorage International.