Plan a flight · Sun 8:25 pm PDT (03:25 UTC)

Paso Robles Municipal to Ontario International PRB → ONT

178 nautical miles (205 statute miles) southeast on a straight line, true course 122°, about 107° magnetic at the departure end (variation 15E). At 120 knots that is 1 h 24 min at the quickest height in today's winds (18,000 ft, a 7-knot tailwind), arriving about 9:49 pm PDT (04:49 UTC), after sunset at the destination. Right now PRB is VFR, wind from the southwest (220°) at 9 knots; ONT is VFR, wind from the west-southwest (240°) at 6 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: 29 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 below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the last 59 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 PRB.

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

B739 at 4,000 ft, 14 nm south, 5:32 pm PDT (00:32 UTC): overcast above 4,000 ft. 138 nm along the route, 14 nm south 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
E75L climbing, 1 nm southwest, 7:15 pm PDT (02:15 UTC): a routine report with nothing remarked on. 148 nm along the route, 1 nm southwest of the line.
as filed, and in English
```
ONT UA /OV ONT290030/TM 0215/FLDURC/TP E75L/SK T-078
```
Report
a routine report filed through ONT
Where
30 nm west (290°) of ONT
Time
02:15 UTC
Height
during the climb
Aircraft
E75L
Sky
T-078
B737 climbing, 6 nm south, 8:01 pm PDT (03:01 UTC): a routine report with nothing remarked on. 158 nm along the route, 6 nm south of the line.
as filed, and in English
```
ONT UA /OV ONT278016/TM 0301/FLDURC/TP B737/SK B-047 -T080
```
Report
a routine report filed through ONT
Where
16 nm west (278°) of ONT
Time
03:01 UTC
Height
during the climb
Aircraft
B737
Sky
B-047 T080
B737 at 6,400 ft, 28 nm southwest, 6:30 pm PDT (01:30 UTC): a broken layer from 3,300 ft to 6,400 ft. 158 nm along the route, 28 nm southwest of the line.
as filed, and in English
```
LGB UA /OV LGB/TM 0130/FL064/TP B737/SK BKN033-TOP064
```
Report
a routine report filed through LGB
Where
over LGB
Time
01:30 UTC
Height
at 6,400 ft
Aircraft
B737
Sky
a broken layer from 3,300 ft, tops 6,400 ft
SLG4 at 3,000 ft, 8 nm southwest, 6:33 pm PDT (01:33 UTC): scattered clouds above 4,000 ft. 168 nm along the route, 8 nm southwest of the line.
as filed, and in English
```
EMT UA /OV EMT070006/TM 0133/FL030/TP SLG4/SK SCT040
```
Report
a routine report filed through EMT
Where
6 nm east (070°) of EMT
Time
01:33 UTC
Height
at 3,000 ft
Aircraft
SLG4
Sky
scattered clouds from 4,000 ft
A21N at 2,000 ft, 11 nm south, 6:06 pm PDT (01:06 UTC): remarks: ils 25L haze below the ceiling. 168 nm along the route, 11 nm south of the line.
as filed, and in English
```
LAX UA /OV LAX070030/TM 0106/FL020/TP A21N/SK TOPS068 BASES040/RM ILS 25L - HZ BELOW THE CEILING
```
Report
a routine report filed through LAX
Where
30 nm east (070°) of LAX
Time
01:06 UTC
Height
at 2,000 ft
Aircraft
A21N
Sky
TOPS068 BASES040
Remarks
ils 25L haze below the ceiling
A20N climbing, 7 nm south, 8:04 pm PDT (03:04 UTC): a routine report with nothing remarked on. At the destination end, 7 nm south of the line.
as filed, and in English
```
ONT UA /OV ONT153007/TM 0304/FLDURC/TP A20N/SK B-036 -T047
```
Report
a routine report filed through ONT
Where
7 nm southeast (153°) of ONT
Time
03:04 UTC
Height
during the climb
Aircraft
A20N
Sky
B-036 T047
A20N climbing, 3 nm southwest, 8:03 pm PDT (03:03 UTC): a routine report with nothing remarked on. At the destination end, 3 nm southwest of the line.
as filed, and in English
```
ONT UA /OV ONT204003/TM 0303/FLDURC/TP A20N/SK B-030
```
Report
a routine report filed through ONT
Where
3 nm southwest (204°) of ONT
Time
03:03 UTC
Height
during the climb
Aircraft
A20N
Sky
B-030
A20N at 5,300 ft, 26 nm southwest, 6:00 pm PDT (01:00 UTC): a broken layer from 4,300 ft to 5,300 ft. At the destination end, 26 nm southwest of the line.
as filed, and in English
```
SNA UA /OV SNA/TM 0100/FL053/TP A20N/SK BKN043-TOP053
```
Report
a routine report filed through SNA
Where
over SNA
Time
01:00 UTC
Height
at 5,300 ft
Aircraft
A20N
Sky
a broken layer from 4,300 ft, tops 5,300 ft

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 3 forecast points nearest it (SBA, WJF, 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
3,500 ft	190° at 4 kt	+2 kt		118 kt	1 h 31 min	9:56 pm PDT (04:56 UTC)
5,500 ft	190° at 17 kt	+5 kt	6 °C	115 kt	1 h 33 min	9:58 pm PDT (04:58 UTC)
7,500 ft	200° at 20 kt	+3 kt	4 °C	117 kt	1 h 31 min	9:56 pm PDT (04:56 UTC)
9,500 ft	210° at 23 kt	+1 kt	2 °C	119 kt	1 h 30 min	9:55 pm PDT (04:55 UTC)
11,500 ft	210° at 25 kt	−1 kt	-2 °C	121 kt	1 h 28 min	9:53 pm PDT (04:53 UTC)
13,500 ft	220° at 25 kt	−2 kt	-6 °C	122 kt	1 h 28 min	9:53 pm PDT (04:53 UTC)
15,500 ft	220° at 24 kt	−4 kt	-9 °C	124 kt	1 h 26 min	9:51 pm PDT (04:51 UTC)
17,500 ft	230° at 24 kt	−6 kt	-12 °C	126 kt	1 h 25 min	9:50 pm PDT (04:50 UTC)
18,000 ft FL180	230° at 24 kt	−7 kt	-13 °C	127 kt	1 h 24 min	9:49 pm PDT (04:49 UTC)
24,000 ft FL240	220° at 39 kt	−7 kt	-21 °C	127 kt	1 h 24 min	9:49 pm PDT (04:49 UTC)
30,000 ft FL300	220° at 45 kt	−6 kt	-29 °C	126 kt	1 h 25 min	9:50 pm PDT (04:50 UTC)
34,000 ft FL340	220° at 47 kt	−6 kt	-36 °C	126 kt	1 h 25 min	9:50 pm PDT (04:50 UTC)
39,000 ft FL390	220° at 49 kt	−6 kt	-44 °C	126 kt	1 h 25 min	9:50 pm PDT (04:50 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
SBA	used from 0 nm out; 64 nm from the line	L/V	190/13 5°	210/20 2°	220/22 -3°	260/19 -13°	230/35 -22°	220/43 -28°	220/46 -36°	220/45 -44°
WJF	used from 99 nm out; 18 nm from the line		200/28 6°	210/28 3°	210/29 -4°	210/28 -14°	220/41 -20°	220/47 -29°	220/46 -37°	220/53 -44°
ONT	used from 148 nm out; 15 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
PRB Paso Robles, CA	departure	VFR Sky: a broken layer at 5,000 feet	from the southwest (220°) at 9 knots	10+ mi	5,000 ft	838 ft	7:53 pm PDT (02:53 UTC)
WJF Lancaster, CA	128 nm out, 17 nm northeast of the line, tower	VFR Sky: a broken layer at 3,300 feet	from the west-southwest (240°) at 15 knots	10+ mi	3,300 ft	2,350 ft	02:56 UTC
EMT El Monte, CA	158 nm out, 11 nm southwest of the line, tower	VFR Sky: a few clouds at 4,400 feet, overcast at 5,500 feet	from the south (170°) at 6 knots	10+ mi	5,500 ft	295 ft	02:45 UTC
ONT Ontario, CA	destination	VFR Sky: scattered clouds at 3,200 feet, a broken layer at 4,500 feet, a broken layer at 5,500 feet	from the west-southwest (240°) at 6 knots	10+ mi	4,500 ft	944 ft	7:53 pm PDT (02:53 UTC)

The highest airport on this list sits at 2,350 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, 9:49 pm PDT (04:49 UTC)

Wind from the west-southwest at 8 knots, visibility more than 6 miles, a few clouds at 3,000 feet, a broken layer at 5,000 feet VFR

The whole forecast for ONT

From Sun 7:00 pm PDT (02:00 UTC): wind from the west-southwest at 8 knots, 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 6 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 PRB, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southwest at 14 knots, gusting to 24, visibility more than 6 miles, a broken layer at 4,000 feet
From Sun 7:00 pm PDT (02:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 15,000 feet
From Sun 11:00 pm PDT (06:00 UTC): wind from the south at 7 knots, visibility more than 6 miles, a broken layer at 5,000 feet, a broken layer at 15,000 feet
30% chance between Sun 11:00 pm PDT (06:00 UTC) and 5:00 am PDT (12:00 UTC): light rain showers
From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
30% chance between Mon 5:00 am PDT (12:00 UTC) and 11:00 am PDT (18:00 UTC): light rain showers
From Mon 1:00 pm PDT (20:00 UTC): wind from the southwest at 5 knots, visibility more than 6 miles, a broken layer at 25,000 feet

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

4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the destination end · security · ZLA

Daylight

Sunset at PRB 6:31 pm PDT (01:31 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 after sunset there (6:21 pm PDT (01:21 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, 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: Paso Robles Municipal, Ontario International.