Plan a flight · Mon 9:49 am MDT (15:49 UTC)

Yellowstone Regional to George Bush Intcntl/Houston Airport COD → IAH

1,087 nautical miles (1,251 statute miles) southeast on a straight line, true course 139°, about 128° magnetic at the departure end (variation 11E). At 120 knots that is 8 h 07 min at the quickest height in today's winds (34,000 ft, a 14-knot tailwind), arriving about 6:56 pm CDT (23:56 UTC), after sunset at the destination. Right now COD is IFR, wind from the northeast (050°) at 7 knots; IAH is VFR, wind from the east-southeast (110°) 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 150 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 150 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Near the route, 130 nm along the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 180 to 329 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 190 to 449 nm out.
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 200 to 289 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 COD.

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

urgent C172 at 6,700 ft, 47 nm southwest, 6:54 am MDT (12:54 UTC): remarks: low-level wind shear + 10 knots during the climb. 349 nm along the route, 47 nm southwest of the line.
as filed, and in English
```
APA UUA /OV KAPA/TM 1254/FL067/TP C172/RM LLWS +/- 10 KTS DURC
```
Report
an urgent report filed through APA
Where
over KAPA
Time
12:54 UTC
Height
at 6,700 ft
Aircraft
C172
Remarks
low-level wind shear + 10 knots during the climb
BCS1 at 31,000 ft, 9 nm west, 9:26 am MDT (15:26 UTC): moderate turbulence, remarks: mountain wave +-15KTS-ZDVWC 34. 229 nm along the route, 9 nm west 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
E75L at 30,000 ft, 22 nm southwest, 8:34 am MDT (14:34 UTC): moderate chop turbulence, remarks: ZDVWC-34. 239 nm along the route, 22 nm southwest of the line.
as filed, and in English
```
LAR UA /OV LAR200010/TM 1434/FL300/TP E75L/TB MOD CHOP/RM -ZDVWC-34
```
Report
a routine report filed through LAR
Where
10 nm south (200°) of LAR
Time
14:34 UTC
Height
at 30,000 ft
Aircraft
E75L
Turbulence
moderate chop
Remarks
ZDVWC-34
BE20 at 12,500 ft, 17 nm northeast, 8:28 am MDT (14:28 UTC): moderate turbulence from 9,000 ft to 12,000 ft, remarks: during the climb zdvwc. 269 nm along the route, 17 nm northeast 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
B738 descending, 31 nm southwest, 7:01 am MDT (13:01 UTC): moderate turbulence from 11,000 ft to 20,000 ft. 299 nm along the route, 31 nm southwest of the line.
as filed, and in English
```
DEN UA /OV 40NW DEN/TM 1301/FLDURD/TP B738/TB MOD 200-110
```
Report
a routine report filed through DEN
Where
40NW den
Time
13:01 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 20,000 ft to 11,000 ft
B737 at 21,000 ft, 33 nm southwest, 8:05 am MDT (14:05 UTC): moderate turbulence, remarks: mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent. 319 nm along the route, 33 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN310025/TM 1405/FL210/TP B737/TB MOD TURB/RM MTN WAVE +30KTS 250-150 DURD
```
Report
a routine report filed through DEN
Where
25 nm northwest (310°) of DEN
Time
14:05 UTC
Height
at 21,000 ft
Aircraft
B737
Turbulence
moderate turbulence
Remarks
mountain wave a 30-knot gain of airspeed from 25,000 ft to 15,000 ft during the descent
B738 descending, 3 nm south, 9:20 am MDT (15:20 UTC): moderate turbulence from 12,000 ft to 18,000 ft. 339 nm along the route, 3 nm south of the line.
as filed, and in English
```
DEN UA /OV 30NE DEN/TM 1520/FLDURD/TP B738/TB MOD 180-120
```
Report
a routine report filed through DEN
Where
30NE den
Time
15:20 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate from 18,000 ft to 12,000 ft
C172 at 7,500 ft, 43 nm southwest, 9:27 am MDT (15:27 UTC): moderate turbulence. 349 nm along the route, 43 nm southwest of the line.
as filed, and in English
```
APA UA /OV APA100008/TM 1527/FL075/TP C172/TB CONT MOD
```
Report
a routine report filed through APA
Where
8 nm east (100°) of APA
Time
15:27 UTC
Height
at 7,500 ft
Aircraft
C172
Turbulence
continuous moderate
B38M at 12,000 ft, 14 nm southwest, 8:07 am MDT (14:07 UTC): moderate turbulence, remarks: from 11,000 ft to 12,000 ft. 359 nm along the route, 14 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN090025/TM 1407/FL120/TP B38M/TB MOD/RM 110-120
```
Report
a routine report filed through DEN
Where
25 nm east (090°) of DEN
Time
14:07 UTC
Height
at 12,000 ft
Aircraft
B38M
Turbulence
moderate
Remarks
from 11,000 ft to 12,000 ft
CRJ2 at 13,500 ft, 3 nm east, 9:27 am MDT (15:27 UTC): no turbulence, no icing, overcast above 10,500 ft, -9 °C, remarks: tops 13,500 ft. 160 nm along the route, 3 nm east 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, 25 nm northeast, 8:05 am MDT (14:05 UTC): overcast from 10,500 ft to 11,500 ft. 160 nm along the route, 25 nm northeast 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
B737 at 18,000 ft, 20 nm southwest, 7:50 am MDT (13:50 UTC): light to moderate turbulence, remarks: from the surface to 18,000 ft. 329 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN350020/TM 1350/FL180/TP B737/TB LGT-MOD/RM SFC-180
```
Report
a routine report filed through DEN
Where
20 nm north (350°) of DEN
Time
13:50 UTC
Height
at 18,000 ft
Aircraft
B737
Turbulence
light to moderate
Remarks
from the surface to 18,000 ft
B737 at 6,500 ft, 31 nm southwest, 9:43 am MDT (15:43 UTC): no turbulence. 339 nm along the route, 31 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 1543/FL065/TP B737/TB NEG TB ON FINAL RWY16L
```
Report
a routine report filed through DEN
Where
over DEN
Time
15:43 UTC
Height
at 6,500 ft
Aircraft
B737
Turbulence
no turbulence on final runway 16L
E75L climbing, 31 nm southwest, 8:37 am MDT (14:37 UTC): light chop turbulence, remarks: zimmr sid. 339 nm along the route, 31 nm southwest of the line.
as filed, and in English
```
DEN UA /OV W DEN/TM 1437/FLDURC/TP E75L/TB CONT LGT CHOP / MOD 120/RM ZIMMR SID
```
Report
a routine report filed through DEN
Where
west den
Time
14:37 UTC
Height
during the climb
Aircraft
E75L
Turbulence
continuous light chop moderate at 12,000 ft
Remarks
zimmr sid

16 more routine reports are on the map.

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 (LND, BFF, DEN, GLD, GCK, GAG, SPS, DAL, CLL, HOU). 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	220° at 20 kt	+3 kt	20 °C	117 kt	9 h 17 min	8:06 pm CDT (01:06 UTC)
7,500 ft	230° at 18 kt	+2 kt	12 °C	118 kt	9 h 13 min	8:02 pm CDT (01:02 UTC)
9,500 ft	230° at 18 kt	+2 kt	10 °C	118 kt	9 h 13 min	8:02 pm CDT (01:02 UTC)
11,500 ft	230° at 21 kt	0	6 °C	120 kt	9 h 04 min	7:53 pm CDT (00:53 UTC)
13,500 ft	230° at 24 kt	−1 kt	2 °C	121 kt	8 h 59 min	7:48 pm CDT (00:48 UTC)
15,500 ft	230° at 27 kt	−1 kt	-3 °C	121 kt	8 h 59 min	7:48 pm CDT (00:48 UTC)
17,500 ft	230° at 30 kt	−1 kt	-7 °C	121 kt	8 h 59 min	7:48 pm CDT (00:48 UTC)
18,000 ft FL180	230° at 31 kt	−1 kt	-8 °C	121 kt	8 h 59 min	7:48 pm CDT (00:48 UTC)
24,000 ft FL240	240° at 43 kt	−3 kt	-19 °C	123 kt	8 h 50 min	7:39 pm CDT (00:39 UTC)
30,000 ft FL300	240° at 55 kt	−9 kt	-30 °C	129 kt	8 h 26 min	7:15 pm CDT (00:15 UTC)
34,000 ft FL340	250° at 57 kt	−14 kt	-38 °C	134 kt	8 h 07 min	6:56 pm CDT (23:56 UTC)
39,000 ft FL390	250° at 50 kt	−13 kt	-48 °C	133 kt	8 h 10 min	6:59 pm CDT (23:59 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
LND	used from 0 nm out; 84 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 200 nm out; 96 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°
DEN	used from 249 nm out; 71 nm from the line			230/7 11°	230/13 4°	230/40 -9°	230/48 -20°	240/66 -32°	240/88 -38°	230/100 -47°
GLD	used from 399 nm out; 65 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 499 nm out; 51 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°
GAG	used from 599 nm out; 37 nm from the line		230/27 21°	230/27 15°	230/26 8°	240/41 -7°	250/54 -19°	250/72 -27°	260/70 -37°	260/64 -49°
SPS	used from 698 nm out; 75 nm from the line	190/18	220/24 18°	210/17 15°	230/19 8°	250/27 -5°	250/41 -16°	260/48 -28°	270/42 -37°	270/28 -50°
DAL	used from 848 nm out; 41 nm from the line	200/15	210/22 19°	210/17 13°	230/12 8°	250/26 -5°	250/25 -14°	260/34 -28°	290/32 -38°	310/23 -50°
CLL	used from 948 nm out; 61 nm from the line	180/21	200/24 17°	200/15 13°	200/7 8°	260/21 -5°	230/25 -13°	260/18 -29°	310/16 -39°	360/27 -51°
HOU	used from 1047 nm out; 40 nm from the line	160/21	180/12 17°	210/11 13°	200/7 8°	280/7 -5°	260/19 -13°	290/16 -30°	340/15 -40°	010/27 -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
COD Cody, WY	departure	IFR Sky: overcast at 500 feet	from the northeast (050°) at 7 knots	10+ mi	500 ft	5,102 ft	8:56 am MDT (14:56 UTC)
HSG Thermopolis, WY	50 nm out, 12 nm southwest of the line	IFR Sky: overcast at 900 feet	from the north-northeast (020°) at 3 knots	7 mi	900 ft	4,891 ft	15:35 UTC
CPR Casper, WY	150 nm out, 22 nm northeast 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
CYS Cheyenne, WY	269 nm out, 14 nm east of the line, tower	VFR	from the west-northwest (290°) at 6 knots	10+ mi	none	6,159 ft	14:53 UTC
LIC Limon, CO	399 nm out, 15 nm southwest of the line	VFR	from the southwest (220°) at 12 knots, gusting to 19	10+ mi	none	5,374 ft	14:55 UTC
JHN Johnson City, KS	529 nm out, 4 nm south of the line	VFR	from the southwest (230°) at 17 knots	10+ mi	none	3,325 ft	15:35 UTC
HQG Hugoton, KS	559 nm out, 5 nm south of the line	VFR	from the southwest (230°) at 14 knots, gusting to 17	10+ mi	none	3,134 ft	15:35 UTC
CSM Burns Flat, OK	708 nm out, 18 nm northeast of the line, tower	VFR	from the south (190°) at 22 knots, gusting to 35	10+ mi	none	1,922 ft	14:53 UTC
SPS Wichita Falls, TX	798 nm out, 0 nm south of the line, tower	VFR	from the south (190°) at 15 knots, gusting to 22	10+ mi	none	1,019 ft	14:52 UTC
FWS Fort Worth, TX	898 nm out, 5 nm southeast of the line, tower	VFR Sky: a few clouds at 1,000 feet	from the south (180°) at 9 knots	10+ mi	none	700 ft	14:50 UTC
CXO Houston, TX	1067 nm out, 9 nm northeast of the line, tower	VFR Sky: a few clouds at 2,500 feet	from the southeast (140°) at 7 knots	10+ mi	none	244 ft	14:53 UTC
IAH Houston, TX	destination	VFR Sky: scattered clouds at 2,800 feet, overcast at 23,000 feet	from the east-southeast (110°) at 6 knots	10+ mi	23,000 ft	95 ft	9:53 am CDT (14:53 UTC)

The highest airport on this list sits at 6,159 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At IAH when you get there the forecast at the estimated arrival, 6:56 pm CDT (23:56 UTC)

Wind from the southeast at 13 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 10,000 feet VFR

The whole forecast for IAH

From Mon 10:00 am CDT (15:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southeast at 12 knots, visibility more than 6 miles, scattered clouds at 3,500 feet, a broken layer at 25,000 feet
30% chance between Mon 1:00 pm CDT (18:00 UTC) and 4:00 pm CDT (21:00 UTC): light rain showers
From Mon 4:00 pm CDT (21:00 UTC): wind from the southeast at 13 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 10,000 feet
From Mon 10:00 pm CDT (03:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 5,000 feet
At times between Tue 5:00 am CDT (10:00 UTC) and 8:00 am CDT (13:00 UTC): overcast at 1,500 feet

The forecast for COD, the departure

From Mon 8:00 am MDT (14:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, a broken layer at 500 feet, overcast at 1,500 feet
From Mon 12:00 pm MDT (18:00 UTC): wind from the northeast at 5 knots, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 3,000 feet
30% chance between Mon 4:00 pm MDT (22:00 UTC) and 8:00 pm MDT (02:00 UTC): visibility 6 miles, light showers rain snow
From Mon 8:00 pm MDT (02:00 UTC): wind from the east-northeast at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 500 feet, a broken layer at 1,000 feet and more above

Temporary flight restrictions on the line or within 25 nm of it

6/8646 Arlington, TX, Thursday, October 15, 2026 through Friday, October 16, 2026 UTC 15 nm from the route, 898 nm along the route · drones kept away from a public gathering · starts Thursday 15 October · ZFW

Daylight

Sunset at COD 6:35 pm MDT (00:35 UTC), at IAH 6:54 pm CDT (23:54 UTC) (civil twilight ends 7:18 pm CDT (00:18 UTC)). At 120 knots the arrival at IAH is after sunset there (6:54 pm CDT (23:54 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: Yellowstone Regional, George Bush Intcntl/Houston Airport.