George Bush Intcntl/Houston Airport to Ontario International IAH → ONT
1,157 nautical miles (1,331 statute miles) west on a straight line, true course 288°, about 285° magnetic at the departure end (variation 3E). At 120 knots that is 9 h 43 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 9:44 am PDT (16:44 UTC). Right now IAH is VFR, wind calm; ONT is marginal VFR, wind from the north (350°) at 3 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: 1,645 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 below 18,000 ft up to 18,000 ft. Near the route, 718 nm along the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 768 to 828 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 858 to 1107 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the last 90 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 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 11 forecast points nearest it (HOU, CLL, SAT, ABI, INK, ROW, ELP, TUS, PHX, BLH, ONT). 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 | 200° at 17 kt | +1 kt | 18 °C | 119 kt | 9 h 43 min | 9:44 am PDT (16:44 UTC) |
| 6,500 ft | 200° at 19 kt | +2 kt | 14 °C | 118 kt | 9 h 48 min | 9:49 am PDT (16:49 UTC) |
| 8,500 ft | 200° at 20 kt | +3 kt | 11 °C | 117 kt | 9 h 53 min | 9:54 am PDT (16:54 UTC) |
| 10,500 ft | 210° at 21 kt | +6 kt | 8 °C | 114 kt | 10 h 09 min | 10:10 am PDT (17:10 UTC) |
| 12,500 ft | 210° at 23 kt | +9 kt | 4 °C | 111 kt | 10 h 25 min | 10:26 am PDT (17:26 UTC) |
| 14,500 ft | 220° at 27 kt | +13 kt | 0 °C | 107 kt | 10 h 49 min | 10:50 am PDT (17:50 UTC) |
| 16,500 ft | 220° at 32 kt | +16 kt | -4 °C | 104 kt | 11 h 08 min | 11:09 am PDT (18:09 UTC) |
| 18,000 ft FL180 | 220° at 35 kt | +19 kt | -7 °C | 101 kt | 11 h 27 min | 11:28 am PDT (18:28 UTC) |
| 24,000 ft FL240 | 230° at 45 kt | +27 kt | -16 °C | 93 kt | 12 h 26 min | 12:27 pm PDT (19:27 UTC) |
| 30,000 ft FL300 | 230° at 54 kt | +35 kt | -28 °C | 85 kt | 13 h 37 min | 1:38 pm PDT (20:38 UTC) |
| 34,000 ft FL340 | 240° at 54 kt | +40 kt | -37 °C | 80 kt | 14 h 28 min | 2:29 pm PDT (21:29 UTC) |
| 39,000 ft FL390 | 240° at 46 kt | +37 kt | -48 °C | 83 kt | 13 h 56 min | 1:57 pm PDT (20:57 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° |
| CLL | used from 50 nm out; 23 nm from the line | 170/22 | 170/26 18° | 200/15 14° | 240/13 8° | 240/15 -5° | 260/17 -13° | 290/27 -29° | 290/22 -40° | 320/30 -51° |
| SAT | used from 150 nm out; 79 nm from the line | 150/26 | 180/18 19° | 180/18 14° | 200/14 9° | 230/16 -6° | 210/9 -13° | 270/8 -29° | 280/6 -39° | 340/19 -51° |
| ABI | used from 199 nm out; 81 nm from the line | 200/31 17° | 210/21 15° | 240/15 9° | 250/14 -4° | 250/24 -14° | 250/36 -28° | 270/35 -38° | 290/41 -50° | |
| INK | used from 299 nm out; 95 nm from the line | 190/23 20° | 200/18 15° | 230/18 8° | 240/23 -4° | 240/37 -14° | 240/46 -27° | 250/42 -38° | 260/36 -50° | |
| ROW | used from 499 nm out; 68 nm from the line | 190/33 | 210/27 14° | 220/28 6° | 230/36 -6° | 230/56 -15° | 230/63 -27° | 250/59 -37° | 260/57 -49° | |
| ELP | used from 548 nm out; 43 nm from the line | 290/17 | 210/11 13° | 200/18 5° | 220/46 -6° | 230/64 -14° | 230/63 -27° | 240/55 -37° | 240/44 -48° | |
| TUS | used from 698 nm out; 110 nm from the line | 210/13 13° | 200/35 9° | 210/40 5° | 220/50 -7° | 220/59 -18° | 230/79 -26° | 230/84 -35° | 230/84 -48° | |
| PHX | used from 798 nm out; 53 nm from the line | 150/5 | 200/21 12° | 200/27 6° | 200/35 3° | 220/58 -8° | 220/69 -19° | 220/87 -26° | 230/93 -35° | 230/79 -47° |
| BLH | used from 947 nm out; 40 nm from the line | 210/13 | 200/21 11° | 200/22 5° | 210/25 -1° | 210/51 -10° | 220/61 -20° | 220/81 -29° | 220/92 -34° | 220/79 -45° |
| ONT | used from 1097 nm out; 35 nm from the line | 190/8 | 190/19 6° | 210/23 4° | 210/29 -3° | 210/47 -13° | 210/49 -19° | 220/47 -30° | 220/50 -36° | 220/55 -43° |
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 | VFR Sky: overcast at 22,000 feet | calm | 10+ mi | 22,000 ft | 95 ft | 1:53 am CDT (06:53 UTC) |
| CLL College Station, TX | 60 nm out, 18 nm north of the line, tower | VFR | from the south-southeast (150°) at 6 knots | 10+ mi | none | 320 ft | 06:53 UTC |
| GTU Georgetown, TX | 130 nm out, 4 nm northeast of the line, tower | VFR Sky: a few clouds at 2,100 feet, overcast at 20,000 feet | from the south-southeast (160°) at 6 knots | 10+ mi | 20,000 ft | 789 ft | 06:55 UTC |
| SJT San Angelo, TX | 279 nm out, 3 nm northeast of the line, tower | VFR | from the south (170°) at 6 knots | 10+ mi | none | 1,918 ft | 06:51 UTC |
| MAF Midland, TX | 369 nm out, 14 nm north of the line, tower | VFR | from the south (180°) at 13 knots | 10+ mi | none | 2,872 ft | 06:53 UTC |
| CNM Carlsbad, NM | 479 nm out, 12 nm north of the line | VFR | from the south-southeast (150°) at 5 knots | 10+ mi | none | 3,294 ft | 06:53 UTC |
| SVC Silver City, NM | 678 nm out, 13 nm south of the line | VFR Sky: a broken layer at 8,000 feet | from the northwest (320°) at 6 knots | 10+ mi | 8,000 ft | 5,445 ft | 06:55 UTC |
| CFT Clifton/Morenci, AZ | 728 nm out, 5 nm southwest of the line | no report just now | 3,797 ft | ||||
| PHX Phoenix, AZ | 878 nm out, 2 nm east of the line, tower | VFR Sky: scattered clouds at 4,800 feet, scattered clouds at 7,000 feet, a broken layer at 9,500 feet | from the east-southeast (110°) at 4 knots | 10+ mi | 9,500 ft | 1,134 ft | 06:51 UTC |
| BLH Blythe, CA | 1007 nm out, 10 nm southwest of the line | VFR Sky: a broken layer at 9,000 feet, overcast at 11,000 feet Weather: light rain | from the south (170°) at 10 knots | 10+ mi | 9,000 ft | 399 ft | 06:52 UTC |
| SBD San Bernardino, CA | 1137 nm out, 5 nm north of the line, tower | VFR Sky: scattered clouds at 3,200 feet, overcast at 3,900 feet | calm | 10+ mi | 3,900 ft | 1,159 ft | 06:41 UTC |
| ONT Ontario, CA | destination | marginal VFR Sky: a broken layer at 2,600 feet, overcast at 3,500 feet | from the north (350°) at 3 knots | 7 mi | 2,600 ft | 944 ft | 11:53 pm PDT (06:53 UTC) |
The highest airport on this list sits at 5,445 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ONT when you get there the forecast at the estimated arrival, 9:44 am PDT (16:44 UTC)
Wind from the west-southwest at 4 knots, visibility more than 6 miles, showers nearby, a broken layer at 2,500 feet, a broken layer at 5,000 feet marginal VFR
The whole forecast for ONT
- From Sun 11:00 pm PDT (06:00 UTC): wind from the west-southwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 5,000 feet
- From Mon 2:00 am PDT (09:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, showers nearby, a broken layer at 2,500 feet, a broken layer at 5,000 feet
- From Mon 11:00 am PDT (18:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, a broken layer at 5,000 feet
- From Mon 2:00 pm PDT (21:00 UTC): wind from the west-southwest at 11 knots, gusting to 18, visibility more than 6 miles, a broken layer at 5,000 feet
- From Mon 8:00 pm PDT (03:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, a broken layer at 6,000 feet
The forecast for IAH, the departure
- From Mon 1:00 am CDT (06:00 UTC): wind from the south-southeast at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 4:00 am CDT (09:00 UTC): wind from the east-southeast at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, scattered clouds at 25,000 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the southeast at 11 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 5:00 pm CDT (22:00 UTC): light rain showers
Temporary flight restrictions on the line or within 25 nm of it
- 6/4240 SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local on the route, 269 nm along the route · security · until 1 November · ZFW
- 6/8887 Indio, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 Local 14 nm from the route, 1087 nm along the route · security · until 12 October · ZLA
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the destination end · security · ZLA
Daylight
Sunset at IAH 6:54 pm CDT (23:54 UTC), at ONT 6:18 pm PDT (01:18 UTC) (civil twilight ends 6:44 pm PDT (01:44 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, Ontario International.