George Bush Intcntl/Houston Airport to Yellowstone Regional IAH → COD
1,087 nautical miles (1,251 statute miles) northwest on a straight line, true course 327°, about 324° magnetic at the departure end (variation 3E). At 120 knots that is 8 h 50 min at the quickest height in today's winds (4,500 ft, a 3-knot tailwind), arriving about 4:58 pm MDT (22:58 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 TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 638 to 938 nm out.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 798 to 908 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 150 nm of the route.
- 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 last 140 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 80 nm of 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 IAH.
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 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 9 forecast points nearest it (CLL, DAL, SPS, GAG, GCK, GLD, DEN, BFF, LND). 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 | 230° at 28 kt | −3 kt | 22 °C | 123 kt | 8 h 50 min | 4:58 pm MDT (22:58 UTC) |
| 6,500 ft | 230° at 27 kt | −2 kt | 19 °C | 122 kt | 8 h 55 min | 5:03 pm MDT (23:03 UTC) |
| 8,500 ft | 240° at 21 kt | +3 kt | 12 °C | 117 kt | 9 h 17 min | 5:25 pm MDT (23:25 UTC) |
| 10,500 ft | 240° at 21 kt | +3 kt | 9 °C | 117 kt | 9 h 17 min | 5:25 pm MDT (23:25 UTC) |
| 12,500 ft | 240° at 22 kt | +2 kt | 5 °C | 118 kt | 9 h 13 min | 5:21 pm MDT (23:21 UTC) |
| 14,500 ft | 230° at 26 kt | +1 kt | 0 °C | 119 kt | 9 h 08 min | 5:16 pm MDT (23:16 UTC) |
| 16,500 ft | 230° at 31 kt | −1 kt | -5 °C | 121 kt | 8 h 59 min | 5:07 pm MDT (23:07 UTC) |
| 18,000 ft FL180 | 230° at 34 kt | −2 kt | -8 °C | 122 kt | 8 h 55 min | 5:03 pm MDT (23:03 UTC) |
| 24,000 ft FL240 | 230° at 39 kt | +1 kt | -19 °C | 119 kt | 9 h 08 min | 5:16 pm MDT (23:16 UTC) |
| 30,000 ft FL300 | 240° at 53 kt | +11 kt | -30 °C | 109 kt | 9 h 58 min | 6:06 pm MDT (00:06 UTC) |
| 34,000 ft FL340 | 260° at 52 kt | +20 kt | -37 °C | 100 kt | 10 h 52 min | 7:00 pm MDT (01:00 UTC) |
| 39,000 ft FL390 | 260° at 48 kt | +22 kt | -48 °C | 98 kt | 11 h 06 min | 7:14 pm MDT (01:14 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLL | used from 0 nm out; 42 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° |
| DAL | used from 100 nm out; 68 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° |
| SPS | used from 249 nm out; 15 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° |
| GAG | used from 349 nm out; 70 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° | |
| GCK | used from 499 nm out; 52 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° | |
| GLD | used from 599 nm out; 64 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° | |
| DEN | used from 698 nm out; 39 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° | ||
| BFF | used from 848 nm out; 102 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° | |
| LND | used from 898 nm out; 98 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° |
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 |
|---|---|---|---|---|---|---|---|
| IAH Houston, TX | departure | no report just now | 95 ft | ||||
| CXO Houston, TX | 20 nm out, 9 nm northeast of the line, tower | no report just now | 244 ft | ||||
| FWS Fort Worth, TX | 190 nm out, 5 nm southeast of the line, tower | no report just now | 700 ft | ||||
| SPS Wichita Falls, TX | 289 nm out, 0 nm south of the line, tower | no report just now | 1,019 ft | ||||
| CSM Burns Flat, OK | 379 nm out, 18 nm northeast of the line, tower | no report just now | 1,922 ft | ||||
| HQG Hugoton, KS | 529 nm out, 5 nm south of the line | no report just now | 3,134 ft | ||||
| JHN Johnson City, KS | 559 nm out, 4 nm south of the line | no report just now | 3,325 ft | ||||
| LIC Limon, CO | 688 nm out, 15 nm southwest of the line | no report just now | 5,374 ft | ||||
| CYS Cheyenne, WY | 818 nm out, 14 nm east of the line, tower | no report just now | 6,159 ft | ||||
| CPR Casper, WY | 938 nm out, 22 nm northeast of the line, tower | no report just now | 5,344 ft | ||||
| HSG Thermopolis, WY | 1037 nm out, 12 nm southwest of the line | no report just now | 4,891 ft | ||||
| COD Cody, WY | destination | no report just now | 5,102 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 COD when you get there the forecast at the estimated arrival, 4:58 pm MDT (22:58 UTC)
COD 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, 190 nm along the route · drones kept away from a public gathering · starts Thursday 15 October · ZFW
Daylight
Sunset at IAH 6:54 pm CDT (23:54 UTC), at COD 6:35 pm MDT (00:35 UTC) (civil twilight ends 7:04 pm MDT (01:04 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: George Bush Intcntl/Houston Airport, Yellowstone Regional.