William P Hobby Airport to Washington Dulles International HOU → IAD
1,042 nautical miles (1,200 statute miles) northeast on a straight line, true course 053°, about 050° magnetic at the departure end (variation 3E). At 120 knots that is 7 h 27 min at the quickest height in today's winds (30,000 ft, a 20-knot tailwind), arriving about 4:17 am EDT (08:17 UTC), after sunset at the destination. 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: 8 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 E17E: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the west at 15 knots, until 8:55 pm CDT (01:55 UTC). Over the route from 834 to 993 nm out.
as issued
WSUS31 KKCI 112355 MKCE WST 112355 CONVECTIVE SIGMET 17E VALID UNTIL 0155Z PA MD VA NC WV OH KY FROM 30WSW EWC-20E RIC-70NNE ILM-70W BKW-10ESE APE-30WSW EWC AREA TS MOV FROM 28015KT. TOPS TO FL310.
- SIGMET E16E: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 25 knots, until 8:55 pm CDT (01:55 UTC). Near the route, at the destination end.
as issued
WSUS31 KKCI 112355 MKCE WST 112355 CONVECTIVE SIGMET 16E VALID UNTIL 0155Z NY NJ PA DE MD VA DC WV AND NJ NY CSTL WTRS FROM SAX-30SE JFK-10N DCA-60ENE EKN-SAX AREA EMBD TS MOV FROM 22025KT. TOPS TO FL320.
- AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 457 to 576 nm out.
- 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 route from 606 to 894 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 625 to 993 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 7,000 ft. Over the route from 794 to 864 nm out.
- 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 109 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 109 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 HOU.
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 20:00–03:00 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 (HOU, LCH, JAN, BHM, HSV, TYS, TRI, 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 | 270° at 9 kt | −7 kt | 127 kt | 8 h 12 min | 5:02 am EDT (09:02 UTC) | |
| 5,500 ft | 300° at 14 kt | −6 kt | 12 °C | 126 kt | 8 h 16 min | 5:06 am EDT (09:06 UTC) |
| 7,500 ft | 310° at 15 kt | −6 kt | 12 °C | 126 kt | 8 h 16 min | 5:06 am EDT (09:06 UTC) |
| 9,500 ft | 310° at 15 kt | −6 kt | 9 °C | 126 kt | 8 h 16 min | 5:06 am EDT (09:06 UTC) |
| 11,500 ft | 310° at 16 kt | −6 kt | 6 °C | 126 kt | 8 h 16 min | 5:06 am EDT (09:06 UTC) |
| 13,500 ft | 300° at 18 kt | −7 kt | 2 °C | 127 kt | 8 h 12 min | 5:02 am EDT (09:02 UTC) |
| 15,500 ft | 300° at 19 kt | −9 kt | -1 °C | 129 kt | 8 h 05 min | 4:55 am EDT (08:55 UTC) |
| 17,500 ft | 300° at 20 kt | −10 kt | -5 °C | 130 kt | 8 h 01 min | 4:51 am EDT (08:51 UTC) |
| 18,000 ft FL180 | 300° at 21 kt | −11 kt | -6 °C | 131 kt | 7 h 57 min | 4:47 am EDT (08:47 UTC) |
| 24,000 ft FL240 | 280° at 25 kt | −18 kt | -17 °C | 138 kt | 7 h 33 min | 4:23 am EDT (08:23 UTC) |
| 30,000 ft FL300 | 280° at 30 kt | −20 kt | -32 °C | 140 kt | 7 h 27 min | 4:17 am EDT (08:17 UTC) |
| 34,000 ft FL340 | 290° at 31 kt | −19 kt | -40 °C | 139 kt | 7 h 30 min | 4:20 am EDT (08:20 UTC) |
| 39,000 ft FL390 | 280° at 30 kt | −19 kt | -50 °C | 139 kt | 7 h 30 min | 4:20 am EDT (08:20 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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; 25 nm from the line | 160/18 | 160/14 17° | 180/19 12° | 190/11 8° | 260/12 -4° | 260/14 -13° | 310/26 -30° | 310/30 -40° | 320/21 -52° |
| LCH | used from 50 nm out; 50 nm from the line | 190/6 | 180/8 18° | 170/13 12° | 220/12 7° | 290/10 -4° | 280/15 -14° | 320/30 -31° | 320/32 -40° | 320/39 -53° |
| JAN | used from 199 nm out; 91 nm from the line | 260/6 | 310/14 17° | 280/13 12° | 290/19 6° | 310/22 -5° | 310/28 -17° | 320/44 -32° | 330/48 -41° | 320/52 -51° |
| BHM | used from 397 nm out; 90 nm from the line | 300/16 | 330/32 16° | 320/37 11° | 330/37 6° | 310/33 -7° | 310/30 -18° | 320/40 -34° | 330/43 -41° | 330/30 -49° |
| HSV | used from 447 nm out; 54 nm from the line | 290/15 | 330/34 16° | 330/38 11° | 330/40 5° | 320/36 -7° | 320/31 -18° | 320/44 -34° | 330/53 -41° | 330/34 -48° |
| TYS | used from 596 nm out; 60 nm from the line | 290/19 | 310/22 11° | 330/25 7° | 330/34 3° | 320/37 -7° | 300/37 -18° | 300/37 -34° | 280/29 -39° | 270/29 -48° |
| TRI | used from 745 nm out; 19 nm from the line | 310/28 11° | 320/32 7° | 330/30 2° | 300/28 -9° | 280/34 -21° | 250/37 -31° | 240/39 -38° | 250/35 -48° | |
| ROA | used from 844 nm out; 39 nm from the line | 280/9 | 290/15 12° | 290/11 8° | 210/6 3° | 210/30 -6° | 220/46 -19° | 210/74 -30° | 220/78 -39° | 220/64 -48° |
| EKN | used from 943 nm out; 56 nm from the line | 270/18 13° | 310/5 7° | 140/7 3° | 210/16 -9° | 220/41 -20° | 210/57 -32° | 220/57 -38° | 230/49 -47° | |
| RIC | used from 993 nm out; 81 nm from the line | 190/33 | 200/29 14° | 210/31 12° | 210/38 6° | 230/42 -7° | 230/68 -16° | 220/84 -29° | 220/86 -40° | 220/81 -52° |
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 |
|---|---|---|---|---|---|---|---|
| HOU Houston, TX | departure | no report just now | 46 ft | ||||
| BPT Beaumont/Port Arthur, TX | 60 nm out, 25 nm southeast of the line, tower | no report just now | 14 ft | ||||
| AEX Alexandria, LA | 169 nm out, 5 nm east of the line, tower | no report just now | 88 ft | ||||
| HKS Jackson, MS | 308 nm out, 22 nm southeast of the line, tower | no report just now | 341 ft | ||||
| GTR Columbus/W Point/Starkville, MS | 407 nm out, 13 nm southeast of the line, tower | no report just now | 264 ft | ||||
| HAB Hamilton, AL | 457 nm out, 5 nm north of the line | no report just now | 436 ft | ||||
| HSV Huntsville, AL | 526 nm out, 2 nm south of the line, tower | no report just now | 628 ft | ||||
| TYS Knoxville, TN | 675 nm out, 14 nm southeast of the line, tower | no report just now | 986 ft | ||||
| TRI Bristol/Johnson/Kingsport, TN | 764 nm out, 18 nm southeast of the line, tower | no report just now | 1,518 ft | ||||
| LWB Lewisburg, WV | 894 nm out, 8 nm northwest of the line, tower | no report just now | 2,301 ft | ||||
| CHO Charlottesville, VA | 983 nm out, 22 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, 4:17 am EDT (08:17 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 HOU 6:55 pm CDT (23:55 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 UTC)). At 120 knots the arrival at IAD is before sunrise there (7:16 am EDT (11:16 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: William P Hobby Airport, Washington Dulles International.