Plan a flight · Sun 7:47 pm CDT (00:47 UTC)

San Antonio International to Ontario International SAT → ONT

1,012 nautical miles (1,164 statute miles) west on a straight line, true course 290°, about 286° magnetic at the departure end (variation 4E). At 120 knots that is 8 h 18 min at the quickest height in today's winds (4,500 ft, a 2-knot tailwind), arriving about 2:05 am PDT (09:05 UTC), after sunset at the destination. Right now SAT is VFR, wind from the south-southeast (150°) at 10 knots, gusting to 20; ONT is VFR, wind from the west-southwest (240°) at 9 knots, gusting to 16. 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: 39 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 W69W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 8:55 pm CDT (01:55 UTC). Over the route from 446 to 793 nm out.

as issued

WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 69W
VALID UNTIL 0155Z
TX NM AZ
FROM 50ENE PGS-60SE ABQ-20ENE ELP-70SSW SSO-50SE BZA-50ENE PGS
AREA TS MOV FROM 23040KT. TOPS TO FL340.

AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 446 to 664 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 476 to 664 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 506 to 664 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 873 to 893 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 129 nm of the route.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 60 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 SAT.

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

B38M at 14,000 ft, 20 nm north, 7:13 pm CDT (00:13 UTC): moderate turbulence, light rime icing, 8 °C. At the destination end, 20 nm north of the line.
as filed, and in English
```
ONT UA /OV ONT053034/TM 0013/FL140/TP B38M/TA 08/TB MODERATE TURBULENCE/IC LIGHT RIME ICE 190 - 170
```
Report
a routine report filed through ONT
Where
34 nm northeast (053°) of ONT
Time
00:13 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
8 °C
Turbulence
moderate turbulence
Icing
light rime ice at 19,000 ft at 17,000 ft
B737 at 14,000 ft, 20 nm north, 4:54 pm CDT (21:54 UTC): moderate turbulence. At the destination end, 20 nm north of the line.
as filed, and in English
```
ONT UA /OV 20N ONT/TM 2154/FL140/TP B737/TB MOD
```
Report
a routine report filed through ONT
Where
20N ont
Time
21:54 UTC
Height
at 14,000 ft
Aircraft
B737
Turbulence
moderate
A321 descending, 44 nm south, 7:26 pm CDT (00:26 UTC): light chop turbulence. 655 nm along the route, 44 nm south of the line.
as filed, and in English
```
TUS UA /OV FINAL RWY 12/TM 0026/FLDURD/TP A321/TB LIGHT CHOP ON FINAL
```
Report
a routine report filed through TUS
Where
final runway 12
Time
00:26 UTC
Height
during the descent
Aircraft
A321
Turbulence
light chop on final
F2TH descending, 44 nm south, 5:58 pm CDT (22:58 UTC): light turbulence. 655 nm along the route, 44 nm south of the line.
as filed, and in English
```
TUS UA /OV R22 FINAL/TM 2258/FLDURD/TP F2TH/TB LT TURBULENCE 14000 TO 9000FT
```
Report
a routine report filed through TUS
Where
R22 final
Time
22:58 UTC
Height
during the descent
Aircraft
F2TH
Turbulence
lt turbulence wind from 140° at 0 knots to 9000FT
B738 at 17,000 ft, 47 nm north, 6:54 pm CDT (23:54 UTC): light rime icing, 9 °C, remarks: during the descent. 744 nm along the route, 47 nm north of the line.
as filed, and in English
```
PHX UA /OV PXR330030/TM 2354/FL170/TP B738/TA 09/IC LGT RIME/RM DURD
```
Report
a routine report filed through PHX
Where
30 nm northwest (330°) of PXR
Time
23:54 UTC
Height
at 17,000 ft
Aircraft
B738
Temperature
9 °C
Icing
light rime
Remarks
during the descent
B739 at 4,000 ft, 39 nm west, 7:32 pm CDT (00:32 UTC): overcast above 4,000 ft. At the destination end, 39 nm west of the line.
as filed, and in English
```
BUR UA /OV BUR/TM 0032/FL040/TP B739/SK OVC040
```
Report
a routine report filed through BUR
Where
over BUR
Time
00:32 UTC
Height
at 4,000 ft
Aircraft
B739
Sky
overcast from 4,000 ft
E75S at 5,000 ft, 33 nm southwest, 7:00 pm CDT (00:00 UTC): a routine report with nothing remarked on. At the destination end, 33 nm southwest of the line.
as filed, and in English
```
LGB UA /OV LGB180003/TM 0000/FL050/TP E75S/SK OVC43-TOP050
```
Report
a routine report filed through LGB
Where
3 nm south (180°) of LGB
Time
00:00 UTC
Height
at 5,000 ft
Aircraft
E75S
Sky
OVC43-TOP050
B739 at 3,400 ft, 33 nm west, 6:55 pm CDT (23:55 UTC): overcast above 5,400 ft, remarks: bases 3,500 ft. At the destination end, 33 nm west of the line.
as filed, and in English
```
KLAX UA /OV 10 E LAX/TM 2355/FL034/TP B739/SK OVC054/RM BASES 035
```
Report
a routine report filed through KLAX
Where
10 east lax
Time
23:55 UTC
Height
at 3,400 ft
Aircraft
B739
Sky
overcast from 5,400 ft
Remarks
bases 3,500 ft
B739 at 33,000 ft, 29 nm north, 6:02 pm CDT (23:02 UTC): remarks: mountain wave 10 knots zlawc. At the destination end, 29 nm north of the line.
as filed, and in English
```
DRA UA /OV VCV242015/TM 2302/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
```
Report
a routine report filed through DRA
Where
15 nm southwest (242°) of VCV
Time
23:02 UTC
Height
at 33,000 ft
Aircraft
B739
Remarks
mountain wave 10 knots zlawc
B739 at 33,000 ft, 41 nm northwest, 6:01 pm CDT (23:01 UTC): remarks: mountain wave 10 knots zlawc. At the destination end, 41 nm northwest of the line.
as filed, and in English
```
SDB UA /OV PMD/TM 2301/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
```
Report
a routine report filed through SDB
Where
over PMD
Time
23:01 UTC
Height
at 33,000 ft
Aircraft
B739
Remarks
mountain wave 10 knots zlawc
C172 at 1,400 ft, 37 nm southwest, 5:53 pm CDT (22:53 UTC): remarks: base 3,400 ft. At the destination end, 37 nm southwest of the line.
as filed, and in English
```
TOA UA /OV 4 E KTOA/TM 2253/FL014/TP C172/RM BASE 034
```
Report
a routine report filed through TOA
Where
4 east KTOA
Time
22:53 UTC
Height
at 1,400 ft
Aircraft
C172
Remarks
base 3,400 ft
B757 at 4,000 ft, 32 nm west, 5:38 pm CDT (22:38 UTC): remarks: reduced visibility below the ceiling ILS25L. At the destination end, 32 nm west of the line.
as filed, and in English
```
LAX UA /OV LAX070010/TM 2238/FL040/TP B757/SK TOPS050 BASES040/RM REDUCED VISIBILITY BELOW THE CEILING. ILS25L
```
Report
a routine report filed through LAX
Where
10 nm east (070°) of LAX
Time
22:38 UTC
Height
at 4,000 ft
Aircraft
B757
Sky
TOPS050 BASES040
Remarks
reduced visibility below the ceiling ILS25L
B737 at 4,000 ft, 41 nm west, 5:37 pm CDT (22:37 UTC): a broken layer from 4,000 ft to 5,000 ft. At the destination end, 41 nm west of the line.
as filed, and in English
```
KLAX UA /OV KLAX/TM 2237/FL040/TP B737/SK BKN040-TOP050
```
Report
a routine report filed through KLAX
Where
over KLAX
Time
22:37 UTC
Height
at 4,000 ft
Aircraft
B737
Sky
a broken layer from 4,000 ft, tops 5,000 ft
B737 at 5,000 ft, 34 nm southwest, 5:30 pm CDT (22:30 UTC): a broken layer from 3,300 ft to 5,000 ft. At the destination end, 34 nm southwest of the line.
as filed, and in English
```
LGB UA /OV KLGB180005/TM 2230/FL050/TP B737/SK BKN033-TOPS050
```
Report
a routine report filed through LGB
Where
5 nm south (180°) of KLGB
Time
22:30 UTC
Height
at 5,000 ft
Aircraft
B737
Sky
a broken layer from 3,300 ft, tops 5,000 ft

2 more routine reports are on the map.

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 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 (SAT, DRT, INK, MRF, 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	190° at 17 kt	−2 kt	17 °C	122 kt	8 h 18 min	2:05 am PDT (09:05 UTC)
6,500 ft	190° at 19 kt	−2 kt	13 °C	122 kt	8 h 18 min	2:05 am PDT (09:05 UTC)
8,500 ft	200° at 20 kt	+2 kt	10 °C	118 kt	8 h 35 min	2:22 am PDT (09:22 UTC)
10,500 ft	210° at 22 kt	+5 kt	7 °C	115 kt	8 h 48 min	2:35 am PDT (09:35 UTC)
12,500 ft	220° at 25 kt	+9 kt	3 °C	111 kt	9 h 07 min	2:54 am PDT (09:54 UTC)
14,500 ft	220° at 29 kt	+11 kt	0 °C	109 kt	9 h 17 min	3:04 am PDT (10:04 UTC)
16,500 ft	220° at 33 kt	+14 kt	-4 °C	106 kt	9 h 33 min	3:20 am PDT (10:20 UTC)
18,000 ft FL180	220° at 36 kt	+16 kt	-7 °C	104 kt	9 h 44 min	3:31 am PDT (10:31 UTC)
24,000 ft FL240	230° at 46 kt	+26 kt	-16 °C	94 kt	10 h 46 min	4:33 am PDT (11:33 UTC)
30,000 ft FL300	230° at 54 kt	+27 kt	-27 °C	93 kt	10 h 53 min	4:40 am PDT (11:40 UTC)
34,000 ft FL340	230° at 53 kt	+34 kt	-37 °C	86 kt	11 h 46 min	5:33 am PDT (12:33 UTC)
39,000 ft FL390	240° at 48 kt	+36 kt	-48 °C	84 kt	12 h 03 min	5:50 am PDT (12:50 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
SAT	used from 0 nm out; 25 nm from the line	130/22	140/24 18°	170/19 13°	190/13 7°	240/15 -4°	220/14 -13°	270/11 -28°	280/10 -40°	310/18 -51°
DRT	used from 50 nm out; 68 nm from the line	150/25	150/27 16°	170/19 12°	200/12 7°	230/23 -4°	230/27 -12°	240/24 -28°	290/20 -38°	300/28 -51°
INK	used from 198 nm out; 70 nm from the line		160/27 20°	190/18 13°	240/19 7°	250/23 -4°	250/33 -15°	230/45 -28°	250/45 -39°	270/49 -50°
MRF	used from 298 nm out; 57 nm from the line			190/16 14°	210/18 8°	250/18 -3°	240/27 -14°	230/37 -28°	250/32 -38°	270/40 -50°
ELP	used from 347 nm out; 58 nm from the line		200/15	200/16 15°	200/17 6°	220/40 -6°	240/53 -16°	230/62 -27°	240/63 -38°	250/59 -49°
TUS	used from 545 nm out; 99 nm from the line		220/17 15°	210/32 7°	210/43 5°	210/49 -7°	220/64 -18°	220/83 -26°	230/81 -36°	230/72 -48°
PHX	used from 694 nm out; 24 nm from the line	210/19	210/20 14°	200/20 6°	210/40 1°	220/58 -8°	220/68 -20°	220/82 -26°	230/83 -34°	230/69 -46°
BLH	used from 793 nm out; 47 nm from the line	230/22	210/24 11°	230/23 5°	230/26 0°	220/38 -10°	230/52 -19°	220/58 -28°	220/69 -34°	220/59 -45°
ONT	used from 942 nm out; 45 nm from the line	230/11	200/17 6°	230/27 4°	230/32 -2°	210/39 -12°	220/51 -20°	220/48 -29°	210/51 -34°	210/52 -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
SAT San Antonio, TX	departure	VFR Sky: a few clouds at 6,500 feet, a few clouds at 20,000 feet	from the south-southeast (150°) at 10 knots, gusting to 20	10+ mi	none	809 ft	6:51 pm CDT (23:51 UTC)
ECU Rocksprings, TX	89 nm out, 8 nm southwest of the line	reported, no category	from the south-southeast (160°) at 13 knots, gusting to 18	10+ mi	none	2,372 ft	00:35 UTC
OZA Ozona, TX	159 nm out, 20 nm north of the line	VFR	from the south (170°) at 10 knots, gusting to 20	10+ mi	none	2,376 ft	00:35 UTC
FST Fort Stockton, TX	248 nm out, 3 nm east of the line	VFR	from the south-southeast (150°) at 17 knots, gusting to 28	10+ mi	none	3,011 ft	23:53 UTC
VHN Van Horn, TX	337 nm out, 20 nm southwest of the line	VFR	from the south (190°) at 8 knots	10+ mi	none	3,956 ft	00:35 UTC
ELP El Paso, TX	426 nm out, 4 nm west of the line, tower	VFR Sky: a few clouds at 8,000 feet, scattered clouds at 11,000 feet, scattered clouds at 25,000 feet	from the south-southwest (200°) at 13 knots, gusting to 19	10+ mi	none	3,961 ft	23:51 UTC
LSB Lordsburg, NM	555 nm out, 3 nm southeast of the line	VFR Sky: scattered clouds at 11,000 feet	from the south (190°) at 17 knots, gusting to 27	10+ mi	none	4,287 ft	00:35 UTC
MZJ Marana, AZ	684 nm out, 25 nm south of the line	VFR	from the west-southwest (240°) at 9 knots	10+ mi	none	1,893 ft	00:35 UTC
CHD Chandler, AZ	714 nm out, 14 nm north of the line, tower	VFR Sky: scattered clouds at 8,000 feet, a broken layer at 10,000 feet	from the southwest (230°) at 7 knots	10+ mi	10,000 ft	1,243 ft	23:47 UTC
BLH Blythe, CA	863 nm out, 3 nm northwest of the line	VFR	from the southwest (230°) at 17 knots	10+ mi	none	399 ft	23:52 UTC
PSP Palm Springs, CA	952 nm out, 5 nm southwest of the line, tower	VFR Sky: a few clouds at 5,500 feet	from the north-northwest (330°) at 7 knots	10+ mi	none	476 ft	23:53 UTC
ONT Ontario, CA	destination	VFR Sky: a few clouds at 4,300 feet, scattered clouds at 5,500 feet, a broken layer at 12,000 feet	from the west-southwest (240°) at 9 knots, gusting to 16	10+ mi	12,000 ft	944 ft	4:53 pm PDT (23:53 UTC)

The highest airport on this list sits at 4,287 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, 2:05 am PDT (09:05 UTC)

Wind from the west-southwest at 8 knots, visibility more than 6 miles, showers nearby, overcast at 2,500 feet marginal VFR

The whole forecast for ONT

From Sun 5:00 pm PDT (00:00 UTC): wind from the southwest at 11 knots, gusting to 18, visibility more than 6 miles, a few clouds at 3,000 feet, a broken layer at 5,000 feet
From Sun 11:00 pm PDT (06:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, showers nearby, overcast at 2,500 feet
From Mon 3:00 am PDT (10:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, showers nearby, a few clouds 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 SAT, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southeast at 15 knots, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 25,000 feet
From Mon 12:00 am CDT (05:00 UTC): wind from the southeast at 9 knots, visibility more than 6 miles, scattered clouds at 1,200 feet
From Mon 6:00 am CDT (11:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a broken layer at 1,200 feet
From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Mon 2:00 pm CDT (19:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a broken layer at 5,000 feet

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

6/8887 Indio, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 Local 9 nm from the route, 942 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 SAT 7:06 pm CDT (00:06 UTC), at ONT 6:20 pm PDT (01:20 UTC) (civil twilight ends 6:45 pm PDT (01:45 UTC)). At 120 knots the arrival at ONT is before sunrise there (6:53 am PDT (13:53 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 southern Plains · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the Pacific Southwest · 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 Antonio International, Ontario International.