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 7 h 39 min at the quickest height in today's winds (39,000 ft, a 22-knot tailwind), arriving about 3:45 pm CDT (20:45 UTC). 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 70 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 90 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 200 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). Over the route from 130 to 279 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 140 to 389 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 160 to 309 nm out.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 170 to 180 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 349 to 409 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 579 to 798 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
Not fetched just now.
Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 | 230° at 27 kt | +3 kt | 22 °C | 117 kt | 9 h 17 min | 5:23 pm CDT (22:23 UTC) |
| 7,500 ft | 240° at 21 kt | −2 kt | 13 °C | 122 kt | 8 h 55 min | 5:01 pm CDT (22:01 UTC) |
| 9,500 ft | 240° at 19 kt | −3 kt | 10 °C | 123 kt | 8 h 50 min | 4:56 pm CDT (21:56 UTC) |
| 11,500 ft | 240° at 20 kt | −2 kt | 7 °C | 122 kt | 8 h 55 min | 5:01 pm CDT (22:01 UTC) |
| 13,500 ft | 240° at 23 kt | −1 kt | 2 °C | 121 kt | 8 h 59 min | 5:05 pm CDT (22:05 UTC) |
| 15,500 ft | 230° at 27 kt | 0 | -2 °C | 120 kt | 9 h 04 min | 5:10 pm CDT (22:10 UTC) |
| 17,500 ft | 230° at 31 kt | +1 kt | -7 °C | 119 kt | 9 h 08 min | 5:14 pm CDT (22:14 UTC) |
| 18,000 ft FL180 | 230° at 33 kt | +2 kt | -8 °C | 118 kt | 9 h 13 min | 5:19 pm CDT (22:19 UTC) |
| 24,000 ft FL240 | 230° at 39 kt | −1 kt | -19 °C | 121 kt | 8 h 59 min | 5:05 pm CDT (22:05 UTC) |
| 30,000 ft FL300 | 240° at 51 kt | −11 kt | -30 °C | 131 kt | 8 h 18 min | 4:24 pm CDT (21:24 UTC) |
| 34,000 ft FL340 | 260° at 50 kt | −20 kt | -37 °C | 140 kt | 7 h 46 min | 3:52 pm CDT (20:52 UTC) |
| 39,000 ft FL390 | 260° at 46 kt | −22 kt | -48 °C | 142 kt | 7 h 39 min | 3:45 pm CDT (20:45 UTC) |
Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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 | 240/10 3° | 240/30 0° | 220/42 -13° | 230/52 -23° | 220/54 -33° | 220/52 -36° | 220/53 -44° | ||
| BFF | used from 200 nm out; 96 nm from the line | 280/28 | 260/39 11° | 240/34 5° | 210/38 -11° | 210/52 -22° | 230/61 -31° | 230/61 -36° | 240/56 -45° | |
| DEN | used from 249 nm out; 71 nm from the line | 270/24 11° | 230/13 5° | 230/48 -8° | 230/46 -20° | 230/63 -30° | 240/78 -36° | 240/78 -48° | ||
| GLD | used from 399 nm out; 65 nm from the line | 260/37 | 260/25 14° | 250/27 8° | 230/36 -8° | 230/49 -21° | 250/71 -30° | 260/82 -36° | 250/73 -48° | |
| GCK | used from 499 nm out; 51 nm from the line | 240/40 22° | 240/40 14° | 240/38 7° | 230/39 -7° | 230/45 -20° | 250/73 -28° | 260/74 -36° | 260/64 -49° | |
| GAG | used from 599 nm out; 37 nm from the line | 240/35 22° | 240/27 14° | 230/25 6° | 240/38 -7° | 230/44 -19° | 250/73 -28° | 270/66 -37° | 270/58 -49° | |
| SPS | used from 698 nm out; 75 nm from the line | 220/35 | 220/31 18° | 230/16 14° | 230/10 8° | 250/18 -5° | 250/32 -16° | 260/51 -28° | 280/46 -38° | 300/50 -50° |
| DAL | used from 848 nm out; 41 nm from the line | 190/30 | 200/28 18° | 220/18 13° | 250/13 8° | 240/24 -6° | 270/20 -14° | 270/35 -29° | 290/34 -39° | 310/41 -51° |
| CLL | used from 948 nm out; 61 nm from the line | 180/24 | 170/21 19° | 180/10 14° | 230/7 8° | 230/16 -6° | 260/20 -13° | 290/23 -29° | 320/21 -39° | 340/35 -51° |
| HOU | used from 1047 nm out; 40 nm from the line | 180/22 | 180/20 16° | 170/7 15° | L/V 8° | 220/11 -6° | 260/15 -13° | 310/20 -30° | 320/20 -40° | 350/32 -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 | no report just now | 5,102 ft | ||||
| HSG Thermopolis, WY | 50 nm out, 12 nm southwest of the line | no report just now | 4,891 ft | ||||
| CPR Casper, WY | 150 nm out, 22 nm northeast of the line, tower | no report just now | 5,344 ft | ||||
| CYS Cheyenne, WY | 269 nm out, 14 nm east of the line, tower | no report just now | 6,159 ft | ||||
| LIC Limon, CO | 399 nm out, 15 nm southwest of the line | no report just now | 5,374 ft | ||||
| JHN Johnson City, KS | 529 nm out, 4 nm south of the line | no report just now | 3,325 ft | ||||
| HQG Hugoton, KS | 559 nm out, 5 nm south of the line | no report just now | 3,134 ft | ||||
| CSM Burns Flat, OK | 708 nm out, 18 nm northeast of the line, tower | no report just now | 1,922 ft | ||||
| SPS Wichita Falls, TX | 798 nm out, 0 nm south of the line, tower | no report just now | 1,019 ft | ||||
| FWS Fort Worth, TX | 898 nm out, 5 nm southeast of the line, tower | no report just now | 700 ft | ||||
| CXO Houston, TX | 1067 nm out, 9 nm northeast of the line, tower | no report just now | 244 ft | ||||
| IAH Houston, TX | destination | no report just now | 95 ft |
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, 3:45 pm CDT (20:45 UTC)
IAH has no terminal forecast; use the nearest airport that does.
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)).
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: Yellowstone Regional, George Bush Intcntl/Houston Airport.