Plan a flight · Mon 9:51 am MDT (15:51 UTC)

Bozeman Yellowstone International to Alexandria International BZN → AEX

1,225 nautical miles (1,410 statute miles) southeast on a straight line, true course 129°, about 116° magnetic at the departure end (variation 13E). At 120 knots that is 8 h 30 min at the quickest height in today's winds (34,000 ft, a 24-knot tailwind), arriving about 7:21 pm CDT (00:21 UTC), after sunset at the destination. Right now BZN is low IFR, wind from the south (170°) at 6 knots; AEX is VFR, wind from the south (170°) at 6 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 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 309 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 239 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, at the departure end.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 309 nm along the route.
AIRMET TANGO 3W: 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 329 to 428 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 329 to 508 nm out.
AIRMET TANGO 2W: 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 737 to 777 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

urgent C700 at 43,000 ft, 6 nm north, 9:25 am MDT (15:25 UTC): severe turbulence, remarks: +-1400FT and 15KTS-ZDV. 528 nm along the route, 6 nm north of the line.
as filed, and in English
```
AKO UUA /OV AKO088045/TM 1525/FL430/TP C700/TB SEV MTW/RM +-1400FT AND 15KTS-ZDV
```
Report
an urgent report filed through AKO
Where
45 nm east (088°) of AKO
Time
15:25 UTC
Height
at 43,000 ft
Aircraft
C700
Turbulence
severe mtw
Remarks
+-1400FT and 15KTS-ZDV
BCS1 at 31,000 ft, 44 nm southwest, 9:26 am MDT (15:26 UTC): moderate turbulence, remarks: mountain wave +-15KTS-ZDVWC 34. 339 nm along the route, 44 nm southwest of the line.
as filed, and in English
```
LAR UA /OV LAR320014/TM 1526/FL310/TP BCS1/TB MOD/RM MTN WAVE +-15KTS-ZDVWC- 34
```
Report
a routine report filed through LAR
Where
14 nm northwest (320°) of LAR
Time
15:26 UTC
Height
at 31,000 ft
Aircraft
BCS1
Turbulence
moderate
Remarks
mountain wave +-15KTS-ZDVWC 34
BE20 at 12,500 ft, 26 nm southwest, 8:28 am MDT (14:28 UTC): moderate turbulence from 9,000 ft to 12,000 ft, remarks: during the climb zdvwc. 388 nm along the route, 26 nm southwest of the line.
as filed, and in English
```
CYS UA /OV CYS/TM 1428/FL125/TP BE20/TB MOD 090-120/RM DURC -ZDVWC
```
Report
a routine report filed through CYS
Where
over CYS
Time
14:28 UTC
Height
at 12,500 ft
Aircraft
BE20
Turbulence
moderate from 9,000 ft to 12,000 ft
Remarks
during the climb zdvwc
GA8C at 45,000 ft, 2 nm southeast, 9:25 am MDT (15:25 UTC): moderate turbulence, remarks: mdt and mdt mountain wave +-15KT-ZDVWC 16. 448 nm along the route, 2 nm southeast of the line.
as filed, and in English
```
SNY UA /OV SNY216025/TM 1525/FL450/TP GA8C/TB MOD/RM MDT AND MDT MTN WAVE +-15KT-ZDVWC- 16
```
Report
a routine report filed through SNY
Where
25 nm southwest (216°) of SNY
Time
15:25 UTC
Height
at 45,000 ft
Aircraft
GA8C
Turbulence
moderate
Remarks
mdt and mdt mountain wave +-15KT-ZDVWC 16
GLF4 descending, 0 nm northwest, 7:48 am MDT (13:48 UTC): a routine report with nothing remarked on. At the departure end, 0 nm northwest of the line.
as filed, and in English
```
BZN UA /OV BZN/TM 1348/FLDURD/TP GLF4/SK 047
```
Report
a routine report filed through BZN
Where
over BZN
Time
13:48 UTC
Height
during the descent
Aircraft
GLF4
Sky
at 4,700 ft
CRJ2 at 13,500 ft, 23 nm southwest, 9:27 am MDT (15:27 UTC): no turbulence, no icing, overcast above 10,500 ft, -9 °C, remarks: tops 13,500 ft. 279 nm along the route, 23 nm southwest of the line.
as filed, and in English
```
CPR UA /OV CPR180025/TM 1527/FL135/TP CRJ2/SK OVC105/TA M09/TB NEG/IC NEG/RM TOPS 135
```
Report
a routine report filed through CPR
Where
25 nm south (180°) of CPR
Time
15:27 UTC
Height
at 13,500 ft
Aircraft
CRJ2
Sky
overcast from 10,500 ft
Temperature
−9 °C
Turbulence
none
Icing
none
Remarks
tops 13,500 ft
E175L at 10,000 ft, 4 nm northwest, 8:05 am MDT (14:05 UTC): overcast from 10,500 ft to 11,500 ft. 279 nm along the route, 4 nm northwest of the line.
as filed, and in English
```
CPR UA /OV CPR110010/TM 1405/FL100/TP E175L/SK OVC105-TOP115
```
Report
a routine report filed through CPR
Where
10 nm east (110°) of CPR
Time
14:05 UTC
Height
at 10,000 ft
Aircraft
E175L
Sky
overcast from 10,500 ft, tops 11,500 ft
C56X at 6,000 ft, 25 nm northeast, 8:37 am MDT (14:37 UTC): clear from 6,000 ft to 60,000 ft, remarks: ZDVWC-19. 498 nm along the route, 25 nm northeast of the line.
as filed, and in English
```
HEQ UA /OV HEQ/TM 1437/FL060/TP C56X/SK SKC/RM -ZDVWC-19
```
Report
a routine report filed through HEQ
Where
over HEQ
Time
14:37 UTC
Height
at 6,000 ft
Aircraft
C56X
Sky
clear
Remarks
ZDVWC-19
C25B at 18,000 ft, 45 nm northeast, 8:44 am MDT (14:44 UTC): light rime icing from 18,000 ft to 21,000 ft, -5 °C, remarks: zkcfdc xj. 707 nm along the route, 45 nm northeast of the line.
as filed, and in English
```
GBD UA /OV GBD/TM 1444/FL180/TP C25B/TA M05/IC LGT RIME 180-210/RM /ZKCFDC XJ
```
Report
a routine report filed through GBD
Where
over GBD
Time
14:44 UTC
Height
at 18,000 ft
Aircraft
C25B
Temperature
−5 °C
Icing
light rime from 18,000 ft to 21,000 ft
Remarks
zkcfdc xj
PC12 at 20,000 ft, 10 nm southwest, 7:49 am MDT (13:49 UTC): light chop turbulence, remarks: zhu. At the destination end, 10 nm southwest of the line.
as filed, and in English
```
AEX UA /OV AEX250010/TM 1349/FL200/TP PC12/TB LGT CHOP/RM ZHU
```
Report
a routine report filed through AEX
Where
10 nm west (250°) of AEX
Time
13:49 UTC
Height
at 20,000 ft
Aircraft
PC12
Turbulence
light chop
Remarks
zhu

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 10 forecast points nearest it (DLN, BIL, LND, BFF, GLD, GCK, ICT, OKC, FSM, SHV). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	230° at 17 kt	−2 kt	20 °C	122 kt	10 h 02 min	8:53 pm CDT (01:53 UTC)
7,500 ft	230° at 18 kt	−3 kt	13 °C	123 kt	9 h 58 min	8:49 pm CDT (01:49 UTC)
9,500 ft	240° at 20 kt	−4 kt	9 °C	124 kt	9 h 53 min	8:44 pm CDT (01:44 UTC)
11,500 ft	240° at 24 kt	−6 kt	5 °C	126 kt	9 h 43 min	8:34 pm CDT (01:34 UTC)
13,500 ft	240° at 26 kt	−7 kt	1 °C	127 kt	9 h 39 min	8:30 pm CDT (01:30 UTC)
15,500 ft	240° at 28 kt	−7 kt	-4 °C	127 kt	9 h 39 min	8:30 pm CDT (01:30 UTC)
17,500 ft	240° at 30 kt	−7 kt	-9 °C	127 kt	9 h 39 min	8:30 pm CDT (01:30 UTC)
18,000 ft FL180	240° at 31 kt	−7 kt	-10 °C	127 kt	9 h 39 min	8:30 pm CDT (01:30 UTC)
24,000 ft FL240	240° at 39 kt	−11 kt	-21 °C	131 kt	9 h 21 min	8:12 pm CDT (01:12 UTC)
30,000 ft FL300	250° at 57 kt	−22 kt	-30 °C	142 kt	8 h 38 min	7:29 pm CDT (00:29 UTC)
34,000 ft FL340	250° at 57 kt	−24 kt	-37 °C	144 kt	8 h 30 min	7:21 pm CDT (00:21 UTC)
39,000 ft FL390	250° at 50 kt	−23 kt	-47 °C	143 kt	8 h 34 min	7:25 pm CDT (00:25 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
DLN	used from 0 nm out; 80 nm from the line			L/V -3°	170/16 -6°	180/21 -18°	190/27 -30°	210/63 -33°	210/62 -36°	210/51 -42°
BIL	used from 50 nm out; 71 nm from the line		L/V	250/11 -1°	240/20 -2°	230/28 -15°	220/28 -28°	220/53 -34°	220/55 -39°	220/63 -44°
LND	used from 149 nm out; 74 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°
BFF	used from 299 nm out; 86 nm from the line		310/15	280/27 8°	250/27 2°	230/30 -12°	240/52 -22°	250/66 -32°	240/78 -37°	240/76 -43°
GLD	used from 498 nm out; 45 nm from the line		240/22	250/24 13°	250/39 6°	230/42 -8°	230/55 -21°	240/87 -30°	240/96 -36°	250/93 -48°
GCK	used from 598 nm out; 52 nm from the line		250/23 20°	230/35 13°	240/47 7°	240/42 -7°	250/43 -20°	240/81 -28°	250/87 -37°	250/83 -49°
ICT	used from 747 nm out; 67 nm from the line	200/26	240/31 21°	230/30 14°	240/30 7°	250/38 -8°	240/49 -19°	260/73 -27°	270/69 -37°	270/63 -48°
OKC	used from 797 nm out; 61 nm from the line	200/23	220/26 19°	210/12 16°	230/16 8°	250/36 -6°	250/45 -17°	260/61 -28°	270/51 -37°	270/42 -49°
FSM	used from 946 nm out; 86 nm from the line	210/15	230/31 18°	230/26 12°	240/22 8°	260/26 -6°	270/29 -16°	280/56 -29°	290/47 -37°	310/41 -50°
SHV	used from 1046 nm out; 61 nm from the line	200/17	190/28 18°	200/15 13°	250/12 7°	260/28 -7°	280/22 -14°	290/29 -29°	310/33 -39°	340/27 -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
BZN Bozeman, MT	departure	low IFR Sky: overcast at 200 feet Weather: mist	from the south (170°) at 6 knots	3 mi	200 ft	4,473 ft	9:00 am MDT (15:00 UTC)
COD Cody, WY	120 nm out, 2 nm west of the line	IFR Sky: overcast at 500 feet	from the northeast (050°) at 7 knots	10+ mi	500 ft	5,102 ft	14:56 UTC
WRL Worland, WY	169 nm out, 6 nm east of the line	IFR Sky: a broken layer at 900 feet, a broken layer at 2,600 feet, overcast at 3,900 feet	from the north-northeast (020°) at 6 knots	10+ mi	900 ft	4,251 ft	15:45 UTC
CPR Casper, WY	269 nm out, 4 nm west of the line, tower	IFR Sky: a broken layer at 500 feet, overcast at 1,100 feet	from the north (360°) at 9 knots	10+ mi	500 ft	5,344 ft	14:53 UTC
STK Sterling, CO	468 nm out, 7 nm west of the line	VFR	calm	10+ mi	none	4,037 ft	15:35 UTC
SYF St Francis, KS	548 nm out, 6 nm northeast of the line	VFR	from the west (270°) at 6 knots	10+ mi	none	3,429 ft	15:35 UTC
DDC Dodge City, KS	697 nm out, 17 nm southwest of the line	VFR	from the southwest (230°) at 13 knots, gusting to 22	8 mi	none	2,595 ft	14:52 UTC
WDG Enid, OK	827 nm out, 3 nm north of the line, tower	VFR	from the south (190°) at 21 knots, gusting to 26	10+ mi	none	1,167 ft	14:50 UTC
SRE Seminole, OK	906 nm out, 5 nm south of the line	VFR	variable at 6 knots, gusting to 15	10+ mi	none	1,023 ft	15:35 UTC
ATA Atlanta, TX	1086 nm out, 6 nm east of the line	no report just now				280 ft
DTN Shreveport, LA	1126 nm out, 5 nm southeast of the line, tower	VFR	from the south-southeast (150°) at 6 knots	10+ mi	none	179 ft	14:53 UTC
AEX Alexandria, LA	destination	VFR	from the south (170°) at 6 knots	10+ mi	none	88 ft	9:53 am CDT (14:53 UTC)

The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At AEX when you get there the forecast at the estimated arrival, 7:21 pm CDT (00:21 UTC)

Wind from the south-southeast at 8 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for AEX

From Mon 7:00 am CDT (12:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 11:00 am CDT (16:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, clear skies
From Mon 9:00 pm CDT (02:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, a few clouds at 25,000 feet

The forecast for BZN, the departure

From Mon 10:00 am MDT (16:00 UTC): wind light and variable, visibility 6 miles, mist, scattered clouds at 400 feet, overcast at 1,500 feet
At times between Mon 9:00 am MDT (15:00 UTC) and 11:00 am MDT (17:00 UTC): visibility 5 miles, mist, overcast at 400 feet
From Mon 11:00 am MDT (17:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 600 feet, overcast at 1,500 feet
From Mon 7:00 pm MDT (01:00 UTC): wind light and variable, visibility 6 miles, mist, overcast at 300 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 6:42 pm MDT (00:42 UTC), at AEX 6:42 pm CDT (23:42 UTC) (civil twilight ends 7:06 pm CDT (00:06 UTC)). At 120 knots the arrival at AEX is after sunset there (6:42 pm CDT (23:42 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, Alexandria International.