Bozeman Yellowstone International to Van Nuys Airport BZN → VNY
771 nautical miles (888 statute miles) southwest on a straight line, true course 208°, about 195° magnetic at the departure end (variation 13E). At 120 knots that is 7 h 01 min at the quickest height in today's winds (4,500 ft, a 10-knot headwind), arriving about 12:20 am PDT (07:20 UTC), after sunset at the destination. Right now BZN is low IFR, wind calm; VNY is VFR, wind from the south (180°) at 10 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: 4 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 W71W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the south at 40 knots, until 7:55 pm MDT (01:55 UTC). Over the route from 227 to 257 nm out.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 71W VALID UNTIL 0155Z WY UT ID FROM 40S DBS-40WNW BPI-30WSW MTU-30SSW DTA-30SE TWF-40S DBS AREA EMBD TS MOV FROM 20040KT. TOPS TO FL270.
- SIGMET W72W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 7:55 pm MDT (01:55 UTC). Near the route, 445 nm along the route.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 72W VALID UNTIL 0155Z NV FROM 60SSW BAM-60W ELY-OAL-40WNW OAL-60SSW BAM AREA TS MOV FROM 23020KT. TOPS TO FL300.
- 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 first 287 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 514 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 504 nm of the route.
- 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, at the departure end.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 20 to 30 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 79 to 524 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 465 to 643 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 663 to 762 nm out.
- AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 742 to 742 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 BZN.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 at 33,000 ft, 9 nm southeast, 5:57 pm MDT (23:57 UTC): moderate chop turbulence from 31,000 ft to 33,000 ft. 79 nm along the route, 9 nm southeast of the line.
as filed, and in English
IDA UA /OV DBS015030/TM 2357/FL330/TP B738/TB MOD CHOP 310-330 /ZLC
- Report
- a routine report filed through IDA
- Where
- 30 nm north (015°) of DBS
- Time
- 23:57 UTC
- Height
- at 33,000 ft
- Aircraft
- B738
- Turbulence
- moderate chop from 31,000 ft to 33,000 ft zlc
- B737 at 14,000 ft, 40 nm southeast, 3:54 pm MDT (21:54 UTC): moderate turbulence. At the destination end, 40 nm southeast of the line.
as filed, and in English
ONT UA /OV 20N ONT/TM 2154/FL140/TP B737/TB MOD
- Report
- a routine report filed through ONT
- Where
- 20N ont
- Time
- 21:54 UTC
- Height
- at 14,000 ft
- Aircraft
- B737
- Turbulence
- moderate
- B738 descending, 39 nm southeast, 3:37 pm MDT (21:37 UTC): moderate chop turbulence. At the destination end, 39 nm southeast of the line.
as filed, and in English
ONT UA /OV ONT358021/TM 2137/FLDURD/TP B738/TB MODERATE CHOP STARTING AT 130
- Report
- a routine report filed through ONT
- Where
- 21 nm north (358°) of ONT
- Time
- 21:37 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- moderate chop starting at at 13,000 ft
- B738 at 24,000 ft, 30 nm northwest, 5:13 pm MDT (23:13 UTC): remarks: snow top flight level at 24,000 ft zlc. At the departure end, 30 nm northwest of the line.
as filed, and in English
BZN UA /OV BZN270030/TM 2313/FL240/TP B738/RM SN TOP FL 240 /ZLC
- Report
- a routine report filed through BZN
- Where
- 30 nm west (270°) of BZN
- Time
- 23:13 UTC
- Height
- at 24,000 ft
- Aircraft
- B738
- Remarks
- snow top flight level at 24,000 ft zlc
- C68A at 31,000 ft, 22 nm northwest, 3:49 pm MDT (21:49 UTC): a routine report with nothing remarked on. 168 nm along the route, 22 nm northwest of the line.
as filed, and in English
SUN UA /OV HLE060040/TM 2149/FL310/TP C68A/SK BASE074-TOP300 /ZLC
- Report
- a routine report filed through SUN
- Where
- 40 nm northeast (060°) of HLE
- Time
- 21:49 UTC
- Height
- at 31,000 ft
- Aircraft
- C68A
- Sky
- BASE074-TOP300; zlc
- B38M at 37,000 ft, 4 nm west, 4:25 pm MDT (22:25 UTC): -41 °C, wind 215° at 61 knots, remarks: produced by skypath. 583 nm along the route, 4 nm west of the line.
as filed, and in English
TPH UA /OV BTY308020 /TM 2225 /FL370 /TP B38M /TA M41 /WV 21561KT /RM PRODUCED BY SKYPATH
- Report
- a routine report filed through TPH
- Where
- 20 nm northwest (308°) of BTY
- Time
- 22:25 UTC
- Height
- at 37,000 ft
- Aircraft
- B38M
- Temperature
- −41 °C
- Wind
- from 215° at 61 knots
- Remarks
- produced by skypath
- B38M at 36,000 ft, 20 nm east, 3:43 pm MDT (21:43 UTC): clear from 36,000 ft to 60,000 ft, -40 °C, wind 205° at 55 knots, remarks: produced by skypath. 722 nm along the route, 20 nm east of the line.
as filed, and in English
EDW UA /OV EDW154007 /TM 2143 /FL360 /TP B38M /SK SKC /WX FV99SM /TA M40 /WV 20555KT /RM PRODUCED BY SKYPATH
- Report
- a routine report filed through EDW
- Where
- 7 nm southeast (154°) of EDW
- Time
- 21:43 UTC
- Height
- at 36,000 ft
- Aircraft
- B38M
- Sky
- clear
- Weather
- flight visibility 99 miles
- Temperature
- −40 °C
- Wind
- from 205° at 55 knots
- Remarks
- produced by skypath
- B739 at 33,000 ft, 29 nm east, 5:02 pm MDT (23:02 UTC): remarks: mountain wave 10 knots zlawc. At the destination end, 29 nm east of the line.
as filed, and in English
DRA UA /OV VCV242015/TM 2302/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
- Report
- a routine report filed through DRA
- Where
- 15 nm southwest (242°) of VCV
- Time
- 23:02 UTC
- Height
- at 33,000 ft
- Aircraft
- B739
- Remarks
- mountain wave 10 knots zlawc
- B739 at 33,000 ft, 9 nm east, 5:01 pm MDT (23:01 UTC): remarks: mountain wave 10 knots zlawc. At the destination end, 9 nm east of the line.
as filed, and in English
SDB UA /OV PMD/TM 2301/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
- Report
- a routine report filed through SDB
- Where
- over PMD
- Time
- 23:01 UTC
- Height
- at 33,000 ft
- Aircraft
- B739
- Remarks
- mountain wave 10 knots zlawc
- E75S at 5,000 ft, 31 nm southeast, 6:00 pm MDT (00:00 UTC): a routine report with nothing remarked on. At the destination end, 31 nm southeast of the line.
as filed, and in English
LGB UA /OV LGB180003/TM 0000/FL050/TP E75S/SK OVC43-TOP050
- Report
- a routine report filed through LGB
- Where
- 3 nm south (180°) of LGB
- Time
- 00:00 UTC
- Height
- at 5,000 ft
- Aircraft
- E75S
- Sky
- OVC43-TOP050
- B739 at 3,400 ft, 23 nm southeast, 5:55 pm MDT (23:55 UTC): overcast above 5,400 ft, remarks: bases 3,500 ft. At the destination end, 23 nm southeast of the line.
as filed, and in English
KLAX UA /OV 10 E LAX/TM 2355/FL034/TP B739/SK OVC054/RM BASES 035
- Report
- a routine report filed through KLAX
- Where
- 10 east lax
- Time
- 23:55 UTC
- Height
- at 3,400 ft
- Aircraft
- B739
- Sky
- overcast from 5,400 ft
- Remarks
- bases 3,500 ft
- C172 at 5,000 ft, 36 nm west, 5:15 pm MDT (23:15 UTC): remarks: tops 5,000 ft on departure runway 25. At the destination end, 36 nm west of the line.
as filed, and in English
OXR UA /OV KOXR/TM 2315/FL050/TP C172/RM TOPS 050 ON DEP RWY25
- Report
- a routine report filed through OXR
- Where
- over KOXR
- Time
- 23:15 UTC
- Height
- at 5,000 ft
- Aircraft
- C172
- Remarks
- tops 5,000 ft on departure runway 25
- E50P at 3,200 ft, 36 nm west, 4:57 pm MDT (22:57 UTC): remarks: bases 3,600 ft on arrival runway 25. At the destination end, 36 nm west of the line.
as filed, and in English
OXR UA /OV KOXR/TM 2257/FL032/TP E50P/RM BASES 036 ON ARR RWY25
- Report
- a routine report filed through OXR
- Where
- over KOXR
- Time
- 22:57 UTC
- Height
- at 3,200 ft
- Aircraft
- E50P
- Remarks
- bases 3,600 ft on arrival runway 25
- C172 at 1,400 ft, 28 nm southeast, 4:53 pm MDT (22:53 UTC): remarks: base 3,400 ft. At the destination end, 28 nm southeast of the line.
as filed, and in English
TOA UA /OV 4 E KTOA/TM 2253/FL014/TP C172/RM BASE 034
- Report
- a routine report filed through TOA
- Where
- 4 east KTOA
- Time
- 22:53 UTC
- Height
- at 1,400 ft
- Aircraft
- C172
- Remarks
- base 3,400 ft
6 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 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 5 forecast points nearest it (DLN, PIH, ELY, BIH, WJF). 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 | 240° at 11 kt | +10 kt | 8 °C | 110 kt | 7 h 01 min | 12:20 am PDT (07:20 UTC) |
| 6,500 ft | 240° at 12 kt | +10 kt | 8 °C | 110 kt | 7 h 01 min | 12:20 am PDT (07:20 UTC) |
| 8,500 ft | 230° at 13 kt | +12 kt | 3 °C | 108 kt | 7 h 08 min | 12:27 am PDT (07:27 UTC) |
| 10,500 ft | 220° at 16 kt | +15 kt | 1 °C | 105 kt | 7 h 21 min | 12:40 am PDT (07:40 UTC) |
| 12,500 ft | 220° at 21 kt | +20 kt | -3 °C | 100 kt | 7 h 43 min | 1:02 am PDT (08:02 UTC) |
| 14,500 ft | 220° at 26 kt | +25 kt | -7 °C | 95 kt | 8 h 07 min | 1:26 am PDT (08:26 UTC) |
| 16,500 ft | 210° at 32 kt | +31 kt | -10 °C | 89 kt | 8 h 40 min | 1:59 am PDT (08:59 UTC) |
| 18,000 ft FL180 | 210° at 36 kt | +35 kt | -13 °C | 85 kt | 9 h 04 min | 2:23 am PDT (09:23 UTC) |
| 24,000 ft FL240 | 210° at 49 kt | +49 kt | -23 °C | 71 kt | 10 h 52 min | 4:11 am PDT (11:11 UTC) |
| 30,000 ft FL300 | 210° at 65 kt | +65 kt | -30 °C | 55 kt | 14 h 01 min | 7:20 am PDT (14:20 UTC) |
| 34,000 ft FL340 | 220° at 68 kt | +66 kt | -36 °C | 54 kt | 14 h 17 min | 7:36 am PDT (14:36 UTC) |
| 39,000 ft FL390 | 230° at 65 kt | +61 kt | -44 °C | 59 kt | 13 h 04 min | 6:23 am PDT (13:23 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DLN | used from 0 nm out; 48 nm from the line | 080/10 -3° | 180/8 -3° | 180/23 -14° | 200/58 -22° | 200/80 -36° | 220/85 -41° | 230/81 -45° | ||
| PIH | used from 99 nm out; 63 nm from the line | 270/10 | 270/13 1° | 210/16 -2° | 200/56 -11° | 200/51 -23° | 200/68 -33° | 220/77 -37° | 230/73 -44° | |
| ELY | used from 297 nm out; 104 nm from the line | 210/20 4° | 240/21 -1° | 230/37 -13° | 200/58 -25° | 220/73 -27° | 220/73 -36° | 220/69 -44° | ||
| BIH | used from 494 nm out; 104 nm from the line | L/V | 210/14 6° | 210/20 -2° | 230/26 -14° | 220/32 -24° | 220/63 -27° | 220/56 -35° | 230/50 -44° | |
| WJF | used from 643 nm out; 69 nm from the line | 220/30 8° | 240/28 5° | 230/34 -2° | 220/34 -13° | 220/48 -20° | 220/47 -29° | 210/48 -34° | 220/52 -44° |
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 |
|---|---|---|---|---|---|---|---|
| BZN Bozeman, MT | departure | low IFR Sky: scattered clouds at 200 feet, scattered clouds at 700 feet, overcast at 1,100 feet Weather: snow, fog | calm | 0.5 mi | 1,100 ft | 4,473 ft | 5:56 pm MDT (23:56 UTC) |
| EKS Ennis, MT | 40 nm out, 5 nm northwest of the line | low IFR Sky: overcast at 300 feet Weather: light snow, freezing fog | from the north (350°) at 11 knots | 0.5 mi | 300 ft | 5,432 ft | 23:55 UTC |
| BYI Burley, ID | 227 nm out, 11 nm northwest of the line | VFR Sky: scattered clouds at 1,600 feet, scattered clouds at 3,000 feet, overcast at 11,000 feet | calm | 10+ mi | 11,000 ft | 4,153 ft | 23:53 UTC |
| LWL Wells, NV | 326 nm out, 19 nm northwest of the line | no report just now | 5,769 ft | ||||
| BTY Beatty, NV | 593 nm out, 11 nm east of the line | no report just now | 3,169 ft | ||||
| IYK Inyokern, CA | 682 nm out, 7 nm northwest of the line | no report just now | 2,457 ft | ||||
| WJF Lancaster, CA | 742 nm out, 5 nm north of the line, tower | VFR | from the southwest (220°) at 16 knots, gusting to 28 | 10+ mi | none | 2,350 ft | 23:56 UTC |
| VNY Van Nuys, CA | destination | VFR Sky: scattered clouds at 3,000 feet | from the south (180°) at 10 knots | 10+ mi | none | 802 ft | 4:51 pm PDT (23:51 UTC) |
The highest airport on this list sits at 5,769 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At VNY when you get there the forecast at the estimated arrival, 12:20 am PDT (07:20 UTC)
Wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet VFR
30% chance between Sun 11:00 pm PDT (06:00 UTC) and 5:00 am PDT (12:00 UTC): light rain showers
The whole forecast for VNY
- From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 10,000 feet
- 30% chance between Sun 5:00 pm PDT (00:00 UTC) and 6:00 pm PDT (01:00 UTC): light rain showers
- From Sun 6:00 pm PDT (01:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 12,000 feet
- 30% chance between Sun 6:00 pm PDT (01:00 UTC) and 11:00 pm PDT (06:00 UTC): light rain showers
- From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
- 30% chance between Sun 11:00 pm PDT (06:00 UTC) and 5:00 am PDT (12:00 UTC): light rain showers
The forecast for BZN, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind light and variable, visibility ½ mile, snow, fog, overcast at 300 feet
- At times between Sun 9:00 pm MDT (03:00 UTC) and 12:00 am MDT (06:00 UTC): visibility 2 miles, light snow, mist, scattered clouds at 300 feet, overcast at 1,200 feet
- From Mon 12:00 am MDT (06:00 UTC): wind from the west at 7 knots, visibility 2 miles, light snow, mist, overcast at 800 feet
- At times between Mon 12:00 am MDT (06:00 UTC) and 3:00 am MDT (09:00 UTC): visibility 6 miles, light snow, mist, overcast at 800 feet
- From Mon 3:00 am MDT (09:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 800 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 800 feet, overcast at 2,000 feet
- From Mon 5:00 pm MDT (23:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 1,500 feet, a broken layer at 11,000 feet
Temporary flight restrictions on the line or within 25 nm of it
No temporary flight restriction on or near this route right now.
Daylight
Sunset at BZN 6:44 pm MDT (00:44 UTC), at VNY 6:23 pm PDT (01:23 UTC) (civil twilight ends 6:48 pm PDT (01:48 UTC)). At 120 knots the arrival at VNY is before sunrise there (6:56 am PDT (13:56 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: Bozeman Yellowstone International, Van Nuys Airport.