Bozeman Yellowstone International to Los Angeles International BZN → LAX
785 nautical miles (903 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 12 min at the quickest height in today's winds (4,500 ft, a 11-knot headwind), arriving about 1:11 am PDT (08:11 UTC), after sunset at the destination. Right now BZN is low IFR, wind calm; LAX is VFR, wind from the west-southwest (240°) 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: 1,090 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 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 209 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 536 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 526 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 616 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 467 to 616 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 626 to 765 nm out.
- AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 735 to 775 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, 8 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, 8 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 descending, 0 nm northwest, 6:28 pm MDT (00:28 UTC): scattered clouds above 8,000 ft, fog, snow, remarks: broke out about 100FT above mins. At the departure end, 0 nm northwest of the line.
as filed, and in English
BZN UA /OV BZN/TM 0028/FLDURD/TP B737/SK SCT080/WX 1/2SM SN FG/RM BROKE OUT ABOUT 100FT ABOVE MINS
- Report
- a routine report filed through BZN
- Where
- over BZN
- Time
- 00:28 UTC
- Height
- during the descent
- Aircraft
- B737
- Sky
- scattered clouds from 8,000 ft
- Weather
- 1/2SM, snow, fog
- Remarks
- broke out about 100FT above mins
- B738 at 24,000 ft, 30 nm west, 5:13 pm MDT (23:13 UTC): remarks: snow top flight level at 24,000 ft zlc. At the departure end, 30 nm west 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
- C337 at 10,000 ft, 48 nm southeast, 4:04 pm MDT (22:04 UTC): light rime icing, -1 °C. 218 nm along the route, 48 nm southeast of the line.
as filed, and in English
LGU UA /OV MLD 35NW/TM 2204/FL100/TP C337/TA M01/IC LGT RIME /ZLC
- Report
- a routine report filed through LGU
- Where
- mld 35NW
- Time
- 22:04 UTC
- Height
- at 10,000 ft
- Aircraft
- C337
- Temperature
- −1 °C
- Icing
- light rime zlc
- B38M at 37,000 ft, 11 nm northwest, 4:25 pm MDT (22:25 UTC): -41 °C, wind 215° at 61 knots, remarks: produced by skypath. 586 nm along the route, 11 nm northwest 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
- B739 at 33,000 ft, 19 nm southeast, 5:02 pm MDT (23:02 UTC): remarks: mountain wave 10 knots zlawc. 735 nm along the route, 19 nm southeast 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, 5 nm southwest, 5:01 pm MDT (23:01 UTC): remarks: mountain wave 10 knots zlawc. 735 nm along the route, 5 nm southwest 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
- B739 at 4,000 ft, 6 nm southwest, 6:32 pm MDT (00:32 UTC): overcast above 4,000 ft. At the destination end, 6 nm southwest of the line.
as filed, and in English
BUR UA /OV BUR/TM 0032/FL040/TP B739/SK OVC040
- Report
- a routine report filed through BUR
- Where
- over BUR
- Time
- 00:32 UTC
- Height
- at 4,000 ft
- Aircraft
- B739
- Sky
- overcast from 4,000 ft
- E55P at 3,000 ft, 1 nm northwest, 4:00 pm MDT (22:00 UTC): a broken layer from 3,000 ft to 5,000 ft, remarks: during the descent RY21. At the destination end, 1 nm northwest of the line.
as filed, and in English
SMO UA /OV SMO030008/TM 2200/FL030/TP E55P/SK BKN030-TOP050/RM DURD RY21
- Report
- a routine report filed through SMO
- Where
- 8 nm northeast (030°) of SMO
- Time
- 22:00 UTC
- Height
- at 3,000 ft
- Aircraft
- E55P
- Sky
- a broken layer from 3,000 ft, tops 5,000 ft
- Remarks
- during the descent RY21
- E75S at 5,000 ft, 16 nm southeast, 6:00 pm MDT (00:00 UTC): a routine report with nothing remarked on. At the destination end, 16 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, 9 nm east, 5:55 pm MDT (23:55 UTC): overcast above 5,400 ft, remarks: bases 3,500 ft. At the destination end, 9 nm east 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, 43 nm west, 5:15 pm MDT (23:15 UTC): remarks: tops 5,000 ft on departure runway 25. At the destination end, 43 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, 43 nm west, 4:57 pm MDT (22:57 UTC): remarks: bases 3,600 ft on arrival runway 25. At the destination end, 43 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, 12 nm southeast, 4:53 pm MDT (22:53 UTC): remarks: base 3,400 ft. At the destination end, 12 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
4 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 13 kt | +11 kt | 8 °C | 109 kt | 7 h 12 min | 1:11 am PDT (08:11 UTC) |
| 6,500 ft | 240° at 14 kt | +11 kt | 8 °C | 109 kt | 7 h 12 min | 1:11 am PDT (08:11 UTC) |
| 8,500 ft | 230° at 14 kt | +13 kt | 3 °C | 107 kt | 7 h 20 min | 1:19 am PDT (08:19 UTC) |
| 10,500 ft | 230° at 17 kt | +16 kt | 1 °C | 104 kt | 7 h 33 min | 1:32 am PDT (08:32 UTC) |
| 12,500 ft | 220° at 21 kt | +20 kt | -3 °C | 100 kt | 7 h 51 min | 1:50 am PDT (08:50 UTC) |
| 14,500 ft | 220° at 26 kt | +26 kt | -7 °C | 94 kt | 8 h 21 min | 2:20 am PDT (09:20 UTC) |
| 16,500 ft | 220° at 32 kt | +32 kt | -10 °C | 88 kt | 8 h 55 min | 2:54 am PDT (09:54 UTC) |
| 18,000 ft FL180 | 210° at 37 kt | +36 kt | -13 °C | 84 kt | 9 h 21 min | 3:20 am PDT (10:20 UTC) |
| 24,000 ft FL240 | 200° at 51 kt | +50 kt | -23 °C | 70 kt | 11 h 13 min | 5:12 am PDT (12:12 UTC) |
| 30,000 ft FL300 | 210° at 66 kt | +65 kt | -30 °C | 55 kt | 14 h 16 min | 8:15 am PDT (15:15 UTC) |
| 34,000 ft FL340 | 220° at 69 kt | +67 kt | -36 °C | 53 kt | 14 h 49 min | 8:48 am PDT (15:48 UTC) |
| 39,000 ft FL390 | 230° at 66 kt | +62 kt | -44 °C | 58 kt | 13 h 32 min | 7:31 am PDT (14:31 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; 49 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; 62 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 298 nm out; 102 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 546 nm out; 82 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 646 nm out; 67 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, 6 nm northwest of the line | low IFR Sky: a broken layer at 400 feet, overcast at 1,600 feet Weather: light snow, mist | from the north (350°) at 17 knots, gusting to 23 | 1.25 mi | 400 ft | 5,432 ft | 00:35 UTC |
| PIH Pocatello, ID | 179 nm out, 23 nm southeast of the line, tower | VFR Sky: scattered clouds at 1,200 feet, a broken layer at 6,000 feet, overcast at 8,500 feet Weather: light rain | from the southwest (230°) at 9 knots | 10+ mi | 6,000 ft | 4,451 ft | 00:53 UTC |
| ENV Wendover, UT | 328 nm out, 24 nm southeast of the line | VFR Sky: scattered clouds at 11,000 feet | from the east-southeast (110°) at 5 knots | 10+ mi | none | 4,236 ft | 00:56 UTC |
| BTY Beatty, NV | 596 nm out, 5 nm northeast of the line | no report just now | 3,169 ft | ||||
| IYK Inyokern, CA | 675 nm out, 15 nm west of the line | no report just now | 2,457 ft | ||||
| PMD Palmdale, CA | 745 nm out, 5 nm north of the line, tower | VFR | from the west-southwest (240°) at 18 knots | 10+ mi | none | 2,542 ft | 00:53 UTC |
| LAX Los Angeles, CA | destination | VFR Sky: scattered clouds at 3,600 feet, a broken layer at 4,900 feet | from the west-southwest (240°) at 8 knots | 10+ mi | 4,900 ft | 127 ft | 5:53 pm PDT (00:53 UTC) |
The highest airport on this list sits at 5,432 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LAX when you get there the forecast at the estimated arrival, 1:11 am PDT (08:11 UTC)
Wind from the southwest at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet VFR
30% chance between Mon 12:00 am PDT (07:00 UTC) and 5:00 am PDT (12:00 UTC): light rain showers
The whole forecast for LAX
- From Sun 5:00 pm PDT (00:00 UTC): wind from the southwest at 12 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 4,000 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 southwest at 12 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 from the southwest at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
- 30% chance between Mon 12:00 am PDT (07:00 UTC) and 5:00 am PDT (12:00 UTC): light rain showers
- From Mon 5:00 am PDT (12:00 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 Mon 5:00 am PDT (12:00 UTC) and 11:00 am PDT (18:00 UTC): light rain showers
- From Mon 11:00 am PDT (18:00 UTC): wind from the west-southwest at 12 knots, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
- 30% chance between Mon 11:00 am PDT (18:00 UTC) and 5:00 pm PDT (00:00 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
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 23 nm from the route, at the destination end · security · ZLA
Daylight
Sunset at BZN 6:44 pm MDT (00:44 UTC), at LAX 6:23 pm PDT (01:23 UTC) (civil twilight ends 6:48 pm PDT (01:48 UTC)). At 120 knots the arrival at LAX 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, Los Angeles International.