Plan a flight · Sun 7:15 pm MDT (01:15 UTC)

Bozeman Yellowstone International to Austin-Bergstrom International BZN → AUS

1,129 nautical miles (1,299 statute miles) southeast on a straight line, true course 141°, about 128° magnetic at the departure end (variation 13E). At 120 knots that is 8 h 29 min at the quickest height in today's winds (39,000 ft, a 13-knot tailwind), arriving about 4:44 am CDT (09:44 UTC), after sunset at the destination. Right now BZN is low IFR, wind calm; AUS is VFR, wind from the south-southeast (150°) at 12 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: 23 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 200 nm of the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 519 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 370 nm of the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 20 to 539 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 50 to 340 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Near the route, 130 nm along the route.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 280 nm along 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 BZN.

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

CRJ2 at 19,000 ft, 5 nm north, 6:47 pm MDT (00:47 UTC): moderate chop turbulence, remarks: ZDVWC-13. 380 nm along the route, 5 nm north of the line.
as filed, and in English
```
EGE UA /OV RLG010052/TM 0047/FL190/TP CRJ2/TB COSN MOD CHOP/RM ZDVWC-13
```
Report
a routine report filed through EGE
Where
52 nm north (010°) of RLG
Time
00:47 UTC
Height
at 19,000 ft
Aircraft
CRJ2
Turbulence
cosn moderate chop
Remarks
ZDVWC-13
B39M at 32,000 ft, 30 nm southwest, 5:58 pm MDT (23:58 UTC): moderate chop turbulence, no icing, remarks: moderate mtw a 30-knot loss of airspeed ZDVWC-14. 390 nm along the route, 30 nm southwest of the line.
as filed, and in English
```
EEO UA /OV EKR069073/TM 2358/FL320/TP B39M/TB OCNL MOD CHOP/IC NEG/RM MOD MTW +/-30KT ZDVWC-14
```
Report
a routine report filed through EEO
Where
73 nm east (069°) of EKR
Time
23:58 UTC
Height
at 32,000 ft
Aircraft
B39M
Turbulence
occasional moderate chop
Icing
none
Remarks
moderate mtw a 30-knot loss of airspeed ZDVWC-14
BCS3 at 24,000 ft, 19 nm northeast, 5:28 pm MDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. 410 nm along the route, 19 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN320045/TM 2328/FL240/TP BCS3/TB MOD 240-220/RM DURD
```
Report
a routine report filed through DEN
Where
45 nm northwest (320°) of DEN
Time
23:28 UTC
Height
at 24,000 ft
Aircraft
BCS3
Turbulence
moderate from 24,000 ft to 22,000 ft
Remarks
during the descent
GLF5 at 45,000 ft, 7 nm west, 4:44 pm MDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. 490 nm along the route, 7 nm west of the line.
as filed, and in English
```
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
```
Report
a routine report filed through COS
Where
25 nm north (350°) of COS
Time
22:44 UTC
Height
at 45,000 ft
Aircraft
GLF5
Turbulence
moderate
Remarks
ZDVWC-46
E75L descending, 0 nm northwest, 7:04 pm MDT (01:04 UTC): remarks: had the airport in sight at 400-500FT above ground. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
BZN UA /OV BZN/TM 0104/FLDURD/TP E75L/RM HAD THE AIRPORT IN SIGHT AT 400-500FT AGL
```
Report
a routine report filed through BZN
Where
over BZN
Time
01:04 UTC
Height
during the descent
Aircraft
E75L
Remarks
had the airport in sight at 400-500FT above ground
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
CRJ2 at 9,000 ft, 42 nm northeast, 6:35 pm MDT (00:35 UTC): light chop turbulence, vmc, remarks: occasional moderate turbulence at at 15,000 ft. 260 nm along the route, 42 nm northeast of the line.
as filed, and in English
```
CPR UA /OV CPR215015/TM 0035/FL090/TP CRJ2/WX VMC/TB LGT CHOP/RM OCNL MOD TURB AT 150
```
Report
a routine report filed through CPR
Where
15 nm southwest (215°) of CPR
Time
00:35 UTC
Height
at 9,000 ft
Aircraft
CRJ2
Weather
visual conditions
Turbulence
light chop
Remarks
occasional moderate turbulence at at 15,000 ft
CRJ2 at 29,000 ft, 31 nm northeast, 4:37 pm MDT (22:37 UTC): light chop turbulence, remarks: ZDVWC-34. 330 nm along the route, 31 nm northeast of the line.
as filed, and in English
```
CYS UA /OV CYS286065/TM 2237/FL290/TP CRJ2/TB LGT CHOP/RM ZDVWC-34
```
Report
a routine report filed through CYS
Where
65 nm west (286°) of CYS
Time
22:37 UTC
Height
at 29,000 ft
Aircraft
CRJ2
Turbulence
light chop
Remarks
ZDVWC-34
PC12 , 38 nm southwest, 4:33 pm MDT (22:33 UTC): remarks: ZDVWC-14. 350 nm along the route, 38 nm southwest of the line.
as filed, and in English
```
HDN UA /OV CHE030020/TM 2233/FLFL28/TP PC12/SK TOP280/RM ZDVWC-14
```
Report
a routine report filed through HDN
Where
20 nm northeast (030°) of CHE
Time
22:33 UTC
Height
at 2,800 ft
Aircraft
PC12
Sky
TOP280
Remarks
ZDVWC-14
B738 at 38,000 ft, 40 nm southwest, 4:39 pm MDT (22:39 UTC): light chop turbulence, remarks: light mountain wave a 8-knot loss of airspeed zdvwc. 420 nm along the route, 40 nm southwest of the line.
as filed, and in English
```
ASE UA /OV DBL047040/TM 2239/FL380/TP B738/TB LGT CHOP/RM LGT MTN WAVE +/-8KTS ZDVWC
```
Report
a routine report filed through ASE
Where
40 nm northeast (047°) of DBL
Time
22:39 UTC
Height
at 38,000 ft
Aircraft
B738
Turbulence
light chop
Remarks
light mountain wave a 8-knot loss of airspeed zdvwc
E75L at 10,000 ft, 31 nm northeast, 5:45 pm MDT (23:45 UTC): light turbulence up to 17,000 ft, remarks: during the climb. 440 nm along the route, 31 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN350025/TM 2345/FL100/TP E75L/TB LGT SFC-170/RM DURC
```
Report
a routine report filed through DEN
Where
25 nm north (350°) of DEN
Time
23:45 UTC
Height
at 10,000 ft
Aircraft
E75L
Turbulence
light from the surface to 17,000 ft
Remarks
during the climb
A321 descending, 17 nm northeast, 6:26 pm MDT (00:26 UTC): no turbulence up to 10,000 ft. 460 nm along the route, 17 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0026/FLDURD/TP A321/TB NEG BLO 100
```
Report
a routine report filed through DEN
Where
over DEN
Time
00:26 UTC
Height
during the descent
Aircraft
A321
Turbulence
no below 10,000 ft
B737 at 6,500 ft, 17 nm northeast, 5:27 pm MDT (23:27 UTC): no turbulence. 460 nm along the route, 17 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 2327/FL065/TP B737/TB NEG TB ON FINAL RWY17R
```
Report
a routine report filed through DEN
Where
over DEN
Time
23:27 UTC
Height
at 6,500 ft
Aircraft
B737
Turbulence
no turbulence on final runway 17R

7 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 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 10 forecast points nearest it (DLN, BIL, LND, RKS, DEN, PUB, AMA, LBB, ABI, SAT). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
7,500 ft	190° at 24 kt	+18 kt	13 °C	102 kt	11 h 04 min	7:19 am CDT (12:19 UTC)
9,500 ft	200° at 24 kt	+15 kt	11 °C	105 kt	10 h 45 min	7:00 am CDT (12:00 UTC)
11,500 ft	210° at 29 kt	+14 kt	7 °C	106 kt	10 h 39 min	6:54 am CDT (11:54 UTC)
13,500 ft	210° at 31 kt	+12 kt	2 °C	108 kt	10 h 27 min	6:42 am CDT (11:42 UTC)
15,500 ft	220° at 33 kt	+9 kt	-2 °C	111 kt	10 h 10 min	6:25 am CDT (11:25 UTC)
17,500 ft	220° at 35 kt	+7 kt	-6 °C	113 kt	9 h 59 min	6:14 am CDT (11:14 UTC)
18,000 ft FL180	230° at 36 kt	+6 kt	-7 °C	114 kt	9 h 54 min	6:09 am CDT (11:09 UTC)
24,000 ft FL240	230° at 38 kt	+7 kt	-18 °C	113 kt	9 h 59 min	6:14 am CDT (11:14 UTC)
30,000 ft FL300	230° at 46 kt	+5 kt	-31 °C	115 kt	9 h 49 min	6:04 am CDT (11:04 UTC)
34,000 ft FL340	240° at 53 kt	−7 kt	-38 °C	127 kt	8 h 53 min	5:08 am CDT (10:08 UTC)
39,000 ft FL390	250° at 53 kt	−13 kt	-48 °C	133 kt	8 h 29 min	4:44 am CDT (09:44 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; 76 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°
BIL	used from 50 nm out; 88 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
LND	used from 100 nm out; 84 nm from the line			180/33 10°	190/50 3°	210/59 -9°	200/50 -21°	190/41 -34°	230/55 -39°	240/65 -47°
RKS	used from 300 nm out; 109 nm from the line			190/43	210/65 3°	210/57 -9°	210/56 -21°	210/47 -33°	230/63 -37°	240/77 -46°
DEN	used from 350 nm out; 82 nm from the line			190/31 16°	210/32 7°	240/41 -8°	230/47 -21°	240/56 -32°	250/65 -37°	250/61 -47°
PUB	used from 500 nm out; 31 nm from the line			210/24 16°	210/28 8°	230/43 -8°	240/42 -21°	240/77 -30°	240/72 -36°	250/51 -47°
AMA	used from 649 nm out; 92 nm from the line		190/28	220/26 14°	230/27 7°	250/24 -6°	250/32 -16°	240/51 -28°	250/52 -38°	250/51 -50°
LBB	used from 849 nm out; 79 nm from the line		180/26 20°	210/21 13°	230/21 7°	250/25 -5°	250/34 -16°	250/52 -28°	260/47 -38°	260/49 -50°
ABI	used from 899 nm out; 43 nm from the line		180/26 17°	220/18 12°	230/25 8°	230/28 -5°	240/29 -14°	250/35 -28°	270/37 -39°	280/37 -51°
SAT	used from 1049 nm out; 88 nm from the line	130/22	140/24 18°	170/19 13°	190/13 7°	240/15 -4°	220/14 -13°	270/11 -28°	280/10 -40°	310/18 -51°

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: overcast at 300 feet Weather: light snow, mist	calm	1.25 mi	300 ft	4,473 ft	7:06 pm MDT (01:06 UTC)
LVM Livingston, MT	20 nm out, 20 nm northeast of the line	low IFR Sky: a broken layer at 400 feet, overcast at 1,300 feet Weather: light snow, mist	from the east (080°) at 15 knots	2.5 mi	400 ft	4,659 ft	01:11 UTC
RIW Riverton, WY	200 nm out, 8 nm southwest of the line	VFR Sky: a few clouds at 2,200 feet, a broken layer at 3,900 feet, overcast at 8,500 feet Weather: light rain	from the northeast (040°) at 10 knots	10+ mi	3,900 ft	5,516 ft	00:53 UTC
SAA Saratoga, WY	320 nm out, 8 nm southwest of the line	VFR Sky: scattered clouds at 10,000 feet	from the southeast (140°) at 9 knots	10+ mi	none	7,014 ft	00:50 UTC
BJC Denver, CO	440 nm out, 3 nm east of the line, tower	VFR	from the north (350°) at 5 knots	10+ mi	none	5,673 ft	00:45 UTC
APA Denver, CO	470 nm out, 5 nm north of the line, tower	VFR Sky: a few clouds at 10,000 feet, scattered clouds at 14,000 feet, a broken layer at 22,000 feet	from the south-southwest (200°) at 23 knots, gusting to 31	10+ mi	22,000 ft	5,884 ft	00:53 UTC
LHX La Junta, CO	579 nm out, 5 nm north of the line	VFR	from the southwest (230°) at 6 knots	10+ mi	none	4,228 ft	15:53 UTC
AMA Amarillo, TX	769 nm out, 17 nm west of the line, tower	VFR	from the south (170°) at 14 knots	10+ mi	none	3,606 ft	00:53 UTC
CDS Childress, TX	839 nm out, 17 nm east of the line	VFR	from the south (170°) at 7 knots	10+ mi	none	1,953 ft	00:53 UTC
ABI Abilene, TX	959 nm out, 21 nm southwest of the line, tower	VFR	from the south-southeast (160°) at 15 knots, gusting to 23	10+ mi	none	1,790 ft	00:52 UTC
GTU Georgetown, TX	1099 nm out, 15 nm east of the line, tower	VFR	from the south-southeast (150°) at 7 knots	10+ mi	none	789 ft	00:55 UTC
AUS Austin, TX	destination	VFR Sky: a few clouds at 12,000 feet, a few clouds at 25,000 feet	from the south-southeast (150°) at 12 knots	10+ mi	none	541 ft	7:53 pm CDT (00:53 UTC)

The highest airport on this list sits at 7,014 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At AUS when you get there the forecast at the estimated arrival, 4:44 am CDT (09:44 UTC)

Wind from the south-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet VFR

The whole forecast for AUS

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 14 knots, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 25,000 feet
From Sun 10:00 pm CDT (03:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet
From Mon 7:00 am CDT (12:00 UTC): wind from the south-southeast at 3 knots, visibility more than 6 miles, a broken layer at 1,500 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Mon 2:00 pm CDT (19:00 UTC): wind from the south at 13 knots, visibility more than 6 miles, a broken layer at 4,000 feet

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

6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 21 nm from the route, 490 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV
6/5849 Austin, TX, Friday, October 2, 2026 through Monday, October 12, 2026 UTC 3 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZHU

Daylight

Sunset at BZN 6:44 pm MDT (00:44 UTC), at AUS 7:03 pm CDT (00:03 UTC) (civil twilight ends 7:27 pm CDT (00:27 UTC)). At 120 knots the arrival at AUS is before sunrise there (7:30 am CDT (12:30 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 northern Rockies · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the southern Plains · 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: Bozeman Yellowstone International, Austin-Bergstrom International.