George Bush Intcntl/Houston Airport to Washington Dulles International IAH → IAD
1,033 nautical miles (1,189 statute miles) northeast on a straight line, true course 054°, about 051° magnetic at the departure end (variation 3E). At 120 knots that is 7 h 57 min at the quickest height in today's winds (30,000 ft, a 10-knot tailwind), arriving about 9:40 am EDT (13:40 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: 3,785 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
- SIGMET E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 1:55 am CDT (06:55 UTC). Over the last 119 nm of the route.
as issued
WSUS31 KKCI 120455 MKCE WST 120455 CONVECTIVE SIGMET 19E VALID UNTIL 0655Z CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the last 517 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 626 to 983 nm out.
- AIRMET TANGO 5W: moderate turbulence above 18,000 ft (due to mountain wave) from 29,000 ft to 40,000 ft. Near the route, 785 nm along the route.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 834 to 954 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 89 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 02:00–09:00 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 12 forecast points nearest it (HOU, LCH, SHV, JAN, BHM, HSV, TYS, TRI, CRW, ROA, EKN, RIC). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 280° at 10 kt | −7 kt | 127 kt | 8 h 08 min | 9:51 am EDT (13:51 UTC) | |
| 5,500 ft | 310° at 12 kt | −5 kt | 11 °C | 125 kt | 8 h 16 min | 9:59 am EDT (13:59 UTC) |
| 7,500 ft | 310° at 14 kt | −4 kt | 13 °C | 124 kt | 8 h 20 min | 10:03 am EDT (14:03 UTC) |
| 9,500 ft | 320° at 16 kt | −4 kt | 9 °C | 124 kt | 8 h 20 min | 10:03 am EDT (14:03 UTC) |
| 11,500 ft | 320° at 17 kt | −2 kt | 6 °C | 122 kt | 8 h 28 min | 10:11 am EDT (14:11 UTC) |
| 13,500 ft | 320° at 18 kt | −2 kt | 2 °C | 122 kt | 8 h 28 min | 10:11 am EDT (14:11 UTC) |
| 15,500 ft | 320° at 19 kt | −4 kt | -1 °C | 124 kt | 8 h 20 min | 10:03 am EDT (14:03 UTC) |
| 17,500 ft | 310° at 21 kt | −6 kt | -5 °C | 126 kt | 8 h 12 min | 9:55 am EDT (13:55 UTC) |
| 18,000 ft FL180 | 310° at 21 kt | −6 kt | -6 °C | 126 kt | 8 h 12 min | 9:55 am EDT (13:55 UTC) |
| 24,000 ft FL240 | 310° at 24 kt | −8 kt | -17 °C | 128 kt | 8 h 04 min | 9:47 am EDT (13:47 UTC) |
| 30,000 ft FL300 | 310° at 35 kt | −10 kt | -32 °C | 130 kt | 7 h 57 min | 9:40 am EDT (13:40 UTC) |
| 34,000 ft FL340 | 310° at 39 kt | −10 kt | -40 °C | 130 kt | 7 h 57 min | 9:40 am EDT (13:40 UTC) |
| 39,000 ft FL390 | 320° at 35 kt | −6 kt | -50 °C | 126 kt | 8 h 12 min | 9:55 am EDT (13:55 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| HOU | used from 0 nm out; 39 nm from the line | 160/22 | 150/27 19° | 180/16 14° | 250/7 9° | 270/10 -5° | 270/16 -13° | 310/23 -29° | 310/26 -40° | 330/20 -52° |
| LCH | used from 50 nm out; 61 nm from the line | 160/21 | 160/18 18° | 180/13 12° | 230/6 8° | 280/10 -4° | 260/13 -14° | 310/29 -30° | 320/32 -40° | 330/33 -53° |
| SHV | used from 149 nm out; 78 nm from the line | 200/18 | 230/24 18° | 230/24 12° | 240/14 8° | 260/12 -4° | 240/11 -15° | 300/31 -29° | 300/32 -40° | 300/36 -52° |
| JAN | used from 199 nm out; 88 nm from the line | 230/10 | 270/13 18° | 270/11 12° | 310/11 6° | 300/15 -4° | 300/22 -16° | 310/33 -31° | 320/37 -41° | 330/41 -52° |
| BHM | used from 397 nm out; 90 nm from the line | 310/19 | 330/20 17° | 320/28 11° | 340/21 6° | 310/22 -7° | 330/33 -17° | 330/50 -32° | 330/57 -41° | 330/41 -50° |
| HSV | used from 447 nm out; 46 nm from the line | 310/20 | 330/20 16° | 320/27 11° | 340/23 5° | 320/23 -7° | 340/30 -17° | 320/50 -33° | 330/61 -41° | 340/41 -50° |
| TYS | used from 596 nm out; 53 nm from the line | 320/20 | 340/18 11° | 340/32 9° | 340/36 4° | 330/37 -7° | 330/38 -19° | 330/50 -34° | 330/53 -38° | 330/44 -48° |
| TRI | used from 695 nm out; 43 nm from the line | 330/22 11° | 330/29 7° | 330/32 3° | 330/36 -8° | 320/34 -19° | 320/36 -34° | 320/43 -39° | 320/46 -47° | |
| CRW | used from 795 nm out; 64 nm from the line | 330/20 | 330/23 11° | 340/25 8° | 340/21 2° | 340/33 -9° | 340/41 -20° | 330/42 -35° | 320/44 -39° | 320/43 -47° |
| ROA | used from 844 nm out; 36 nm from the line | 310/29 | 330/31 13° | 340/28 7° | 330/25 3° | 310/32 -8° | 300/32 -22° | 290/32 -31° | 270/35 -38° | 270/32 -47° |
| EKN | used from 944 nm out; 60 nm from the line | 330/21 12° | 330/25 7° | 350/22 2° | 330/24 -10° | 310/27 -21° | 320/33 -35° | 290/31 -39° | 290/34 -47° | |
| RIC | used from 993 nm out; 82 nm from the line | 270/23 | 280/19 11° | 270/18 8° | 240/22 4° | 230/39 -7° | 220/55 -18° | 220/75 -30° | 230/83 -39° | 230/64 -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 |
|---|---|---|---|---|---|---|---|
| IAH Houston, TX | departure | no report just now | 95 ft | ||||
| JAS Jasper, TX | 89 nm out, 5 nm west of the line | no report just now | 212 ft | ||||
| AEX Alexandria, LA | 169 nm out, 19 nm south of the line, tower | no report just now | 88 ft | ||||
| TVR Tallulah, LA | 258 nm out, 12 nm southeast of the line | no report just now | 85 ft | ||||
| GWO Greenwood, MS | 338 nm out, 20 nm northwest of the line, tower | no report just now | 162 ft | ||||
| TUP Tupelo, MS | 417 nm out, 23 nm northwest of the line, tower | no report just now | 346 ft | ||||
| HSV Huntsville, AL | 517 nm out, 11 nm southeast of the line, tower | no report just now | 628 ft | ||||
| TYS Knoxville, TN | 666 nm out, 20 nm southeast of the line, tower | no report just now | 986 ft | ||||
| TRI Bristol/Johnson/Kingsport, TN | 755 nm out, 23 nm southeast of the line, tower | no report just now | 1,518 ft | ||||
| LWB Lewisburg, WV | 884 nm out, 6 nm west of the line, tower | no report just now | 2,301 ft | ||||
| CHO Charlottesville, VA | 973 nm out, 23 nm south of the line, tower | no report just now | 640 ft | ||||
| IAD Washington, DC | destination | no report just now | 312 ft |
The highest airport on this list sits at 2,301 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At IAD when you get there the forecast at the estimated arrival, 9:40 am EDT (13:40 UTC)
IAD has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA 8 nm from the route, at the destination end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the destination end · a VIP movement · today · ZDC
Daylight
Sunset at IAH 6:54 pm CDT (23:54 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 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, Washington Dulles International.