Plan a flight · Mon 12:44 am PDT (07:44 UTC)

San Francisco International to George Bush Intcntl/Houston Airport SFO → IAH

1,419 nautical miles (1,632 statute miles) east on a straight line, true course 101°, about 087° magnetic at the departure end (variation 14E). At 120 knots that is 9 h 09 min at the quickest height in today's winds (34,000 ft, a 35-knot tailwind), arriving about 11:53 am CDT (16:53 UTC). Right now SFO is VFR, wind from the south (180°) at 15 knots; IAH is VFR, wind calm. 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: 7,204 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 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft, from 11:00 pm PDT (06:00 UTC). Over the first 80 nm of the route.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft, from 11:00 pm PDT (06:00 UTC). Over the route from 230 to 310 nm out.
AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots), from 11:00 pm PDT (06:00 UTC). Near the route, 280 nm along the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 11:00 pm PDT (06:00 UTC). Over the route from 320 to 839 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft, from 11:00 pm PDT (06:00 UTC). Over the route from 340 to 440 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 11:00 pm PDT (06:00 UTC). Over the route from 410 to 549 nm out.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 11:00 pm PDT (06:00 UTC). Over the route from 440 to 539 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft, from 11:00 pm PDT (06:00 UTC). Over the route from 450 to 709 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 SFO.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

B737 at 14,500 ft, 23 nm south, 10:30 pm PDT (05:30 UTC): light turbulence. 360 nm along the route, 23 nm south of the line.
as filed, and in English
```
LAS UA /OV LAS155012/TM 0530/FL145/TP B737/TB LGT
```
Report
a routine report filed through LAS
Where
12 nm southeast (155°) of LAS
Time
05:30 UTC
Height
at 14,500 ft
Aircraft
B737
Turbulence
light
B737 at 19,000 ft, 5 nm southwest, 10:45 pm PDT (05:45 UTC): light turbulence. 370 nm along the route, 5 nm southwest of the line.
as filed, and in English
```
LAS UA /OV LAS050012/TM 0545/FL190/TP B737/TB LGT
```
Report
a routine report filed through LAS
Where
12 nm northeast (050°) of LAS
Time
05:45 UTC
Height
at 19,000 ft
Aircraft
B737
Turbulence
light
B38M at 14,000 ft, 9 nm northeast, 10:47 pm PDT (05:47 UTC): light rime icing, 6 °C. 390 nm along the route, 9 nm northeast of the line.
as filed, and in English
```
LAS UA /OV LAS059040/TM 0547/FL140/TP B38M/TA 06/IC LGT RIME
```
Report
a routine report filed through LAS
Where
40 nm northeast (059°) of LAS
Time
05:47 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
6 °C
Icing
light rime

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 11 forecast points nearest it (SFO, FAT, BIH, LAS, PRC, ABQ, ROW, LBB, ABI, 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	190° at 22 kt	+5 kt	14 °C	115 kt	12 h 20 min	3:04 pm CDT (20:04 UTC)
7,500 ft	200° at 21 kt	−1 kt	10 °C	121 kt	11 h 44 min	2:28 pm CDT (19:28 UTC)
9,500 ft	210° at 20 kt	−4 kt	8 °C	124 kt	11 h 27 min	2:11 pm CDT (19:11 UTC)
11,500 ft	210° at 21 kt	−5 kt	4 °C	125 kt	11 h 21 min	2:05 pm CDT (19:05 UTC)
13,500 ft	220° at 24 kt	−8 kt	0 °C	128 kt	11 h 05 min	1:49 pm CDT (18:49 UTC)
15,500 ft	220° at 27 kt	−10 kt	-4 °C	130 kt	10 h 55 min	1:39 pm CDT (18:39 UTC)
17,500 ft	220° at 31 kt	−13 kt	-8 °C	133 kt	10 h 40 min	1:24 pm CDT (18:24 UTC)
18,000 ft FL180	220° at 32 kt	−13 kt	-9 °C	133 kt	10 h 40 min	1:24 pm CDT (18:24 UTC)
24,000 ft FL240	230° at 41 kt	−20 kt	-19 °C	140 kt	10 h 08 min	12:52 pm CDT (17:52 UTC)
30,000 ft FL300	230° at 52 kt	−31 kt	-28 °C	151 kt	9 h 24 min	12:08 pm CDT (17:08 UTC)
34,000 ft FL340	240° at 53 kt	−35 kt	-36 °C	155 kt	9 h 09 min	11:53 am CDT (16:53 UTC)
39,000 ft FL390	240° at 43 kt	−32 kt	-47 °C	152 kt	9 h 20 min	12:04 pm CDT (17:04 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
SFO	used from 0 nm out; 25 nm from the line	120/13	090/14 5°	040/14 -1°	350/17 -5°	360/42 -14°	360/64 -23°	350/38 -32°	300/19 -37°	250/18 -44°
FAT	used from 50 nm out; 64 nm from the line	130/16	160/20 5°	190/28 -1°	210/25 -5°	220/27 -15°	230/21 -26°	220/42 -29°	220/44 -35°	220/44 -44°
BIH	used from 150 nm out; 30 nm from the line		L/V	240/7 1°	190/13 -3°	200/26 -16°	210/43 -26°	220/54 -28°	220/51 -35°	220/47 -43°
LAS	used from 250 nm out; 85 nm from the line		210/21 10°	200/18 5°	200/23 -2°	210/49 -14°	210/63 -21°	220/58 -30°	220/61 -35°	210/56 -44°
PRC	used from 450 nm out; 68 nm from the line			210/25 5°	200/30 1°	220/55 -10°	220/61 -21°	220/84 -28°	230/90 -34°	230/73 -45°
ABQ	used from 649 nm out; 115 nm from the line			220/27 11°	210/35 5°	220/46 -9°	230/62 -20°	240/78 -25°	240/80 -35°	240/56 -47°
ROW	used from 849 nm out; 35 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°
LBB	used from 999 nm out; 65 nm from the line		200/36 18°	220/19 15°	240/20 8°	230/24 -4°	240/37 -16°	250/57 -28°	250/51 -38°	270/47 -50°
ABI	used from 1099 nm out; 49 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°
CLL	used from 1249 nm out; 82 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°
HOU	used from 1399 nm out; 28 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°

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
SFO San Francisco, CA	departure	VFR Sky: a few clouds at 2,000 feet	from the south (180°) at 15 knots	10+ mi	none	13 ft	11:56 pm PDT (06:56 UTC)
MER Atwater, CA	90 nm out, 4 nm northwest of the line, tower	VFR	calm	10+ mi	none	190 ft	23:55 UTC
BTY Beatty, NV	270 nm out, 13 nm north of the line	no report just now				3,169 ft
VGT Las Vegas, NV	360 nm out, 7 nm southwest of the line, tower	VFR Sky: overcast at 10,000 feet	from the south-southeast (150°) at 12 knots	10+ mi	10,000 ft	2,205 ft	06:53 UTC
FLG Flagstaff, AZ	539 nm out, 19 nm south of the line, tower	marginal VFR Sky: scattered clouds at 800 feet, a broken layer at 1,300 feet, overcast at 1,700 feet Weather: light rain, mist	from the south-southwest (210°) at 13 knots	5 mi	1,300 ft	7,014 ft	07:36 UTC
INW Winslow, AZ	579 nm out, 13 nm south of the line	VFR	calm	10+ mi	none	4,941 ft	06:56 UTC
ONM Socorro, NM	779 nm out, 8 nm south of the line	VFR	from the west-northwest (290°) at 3 knots	10+ mi	none	4,875 ft	07:35 UTC
ROW Roswell, NM	909 nm out, 6 nm southwest of the line, tower	VFR Sky: a broken layer at 11,000 feet	from the south-southwest (200°) at 4 knots	10+ mi	11,000 ft	3,671 ft	06:51 UTC
GNC Seminole, TX	1009 nm out, 6 nm south of the line	VFR	from the south (170°) at 4 knots	10+ mi	none	3,314 ft	07:30 UTC
LZZ Lampasas, TX	1259 nm out, 3 nm west of the line	VFR Sky: a few clouds at 1,600 feet	from the south (170°) at 8 knots, gusting to 14	10+ mi	none	1,214 ft	07:35 UTC
GRK Fort Hood (Killeen), TX	1279 nm out, 5 nm northwest of the line, tower	marginal VFR Sky: a broken layer at 1,700 feet	from the south-southeast (150°) at 9 knots	9 mi	1,700 ft	1,015 ft	07:20 UTC
IAH Houston, TX	destination	VFR Sky: overcast at 22,000 feet	calm	10+ mi	22,000 ft	95 ft	1:53 am CDT (06:53 UTC)

The highest airport on this list sits at 7,014 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, 11:53 am CDT (16:53 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 VFR

The whole forecast for IAH

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

The forecast for SFO, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Mon 11:00 am PDT (18:00 UTC): wind from the northeast at 5 knots, visibility more than 6 miles, clear skies
From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 12 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies

Temporary flight restrictions on the line or within 25 nm of it

6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 18 nm from the route, 120 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local on the route, 330 nm along the route · a VIP movement · starts tomorrow · ZLA
6/8808 Las Vegas, NV, Tuesday, October 13, 2026 Local 10 nm from the route, 360 nm along the route · security · starts tomorrow · ZLA
6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local on the route, 829 nm along the route · security · starts tomorrow · ZAB

Daylight

Sunset at SFO 6:35 pm PDT (01:35 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

Radar now, the Pacific Southwest · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: San Francisco International, George Bush Intcntl/Houston Airport.