Plan a flight · Sun 5:09 pm PDT (00:09 UTC)

Ontario International to Jack Northrop Fld/Hawthorne Municipal ONT → HHR

37 nautical miles (43 statute miles) west on a straight line, true course 258°, about 246° magnetic at the departure end (variation 12E). At 120 knots that is 20 min at the quickest height in today's winds (4,500 ft, a 9-knot headwind), arriving about 5:29 pm PDT (00:29 UTC). Right now ONT is VFR, wind from the west-southwest (240°) at 9 knots, gusting to 16; HHR is VFR, wind from the west (270°) at 7 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 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 12,000 ft. Over the first 19 nm of the route.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the whole 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 ONT.

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

B737 at 14,000 ft, 20 nm north, 2:54 pm PDT (21:54 UTC): moderate turbulence. At the departure 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
B738 descending, 21 nm north, 2:37 pm PDT (21:37 UTC): moderate chop turbulence. At the departure end, 21 nm north of the line.
as filed, and in English
```
ONT UA /OV ONT358021/TM 2137/FLDURD/TP B738/TB MODERATE CHOP STARTING AT 130
```
Report
a routine report filed through ONT
Where
21 nm north (358°) of ONT
Time
21:37 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate chop starting at at 13,000 ft
B739 at 33,000 ft, 29 nm north, 4:02 pm PDT (23:02 UTC): remarks: mountain wave 10 knots zlawc. At the departure 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
B38M at 36,000 ft, 49 nm north, 2:43 pm PDT (21:43 UTC): clear from 36,000 ft to 60,000 ft, -40 °C, wind 205° at 55 knots, remarks: produced by skypath. At the departure end, 49 nm north of the line.
as filed, and in English
```
EDW UA /OV EDW154007 /TM 2143 /FL360 /TP B38M /SK SKC /WX FV99SM /TA M40 /WV 20555KT /RM PRODUCED BY SKYPATH
```
Report
a routine report filed through EDW
Where
7 nm southeast (154°) of EDW
Time
21:43 UTC
Height
at 36,000 ft
Aircraft
B38M
Sky
clear
Weather
flight visibility 99 miles
Temperature
−40 °C
Wind
from 205° at 55 knots
Remarks
produced by skypath
B739 at 33,000 ft, 39 nm north, 4:01 pm PDT (23:01 UTC): remarks: mountain wave 10 knots zlawc. 19 nm along the route, 39 nm north 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
E75S at 5,000 ft, 11 nm south, 5:00 pm PDT (00:00 UTC): a routine report with nothing remarked on. 28 nm along the route, 11 nm south 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
B757 at 4,000 ft, 4 nm west, 3:38 pm PDT (22:38 UTC): remarks: reduced visibility below the ceiling ILS25L. 28 nm along the route, 4 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 5,000 ft, 13 nm south, 3:30 pm PDT (22:30 UTC): a broken layer from 3,300 ft to 5,000 ft. 28 nm along the route, 13 nm south 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
B739 at 3,400 ft, 5 nm east, 4:55 pm PDT (23:55 UTC): overcast above 5,400 ft, remarks: bases 3,500 ft. At the destination end, 5 nm east 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
C172 at 5,000 ft, 46 nm west, 4:15 pm PDT (23:15 UTC): remarks: tops 5,000 ft on departure runway 25. At the destination end, 46 nm west of the line.
as filed, and in English
```
OXR UA /OV KOXR/TM 2315/FL050/TP C172/RM TOPS 050 ON DEP RWY25
```
Report
a routine report filed through OXR
Where
over KOXR
Time
23:15 UTC
Height
at 5,000 ft
Aircraft
C172
Remarks
tops 5,000 ft on departure runway 25
E50P at 3,200 ft, 46 nm west, 3:57 pm PDT (22:57 UTC): remarks: bases 3,600 ft on arrival runway 25. At the destination end, 46 nm west of the line.
as filed, and in English
```
OXR UA /OV KOXR/TM 2257/FL032/TP E50P/RM BASES 036 ON ARR RWY25
```
Report
a routine report filed through OXR
Where
over KOXR
Time
22:57 UTC
Height
at 3,200 ft
Aircraft
E50P
Remarks
bases 3,600 ft on arrival runway 25
C172 at 1,400 ft, 9 nm southeast, 3:53 pm PDT (22:53 UTC): remarks: base 3,400 ft. At the destination end, 9 nm southeast 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
B737 at 4,000 ft, 4 nm west, 3:37 pm PDT (22:37 UTC): a broken layer from 4,000 ft to 5,000 ft. At the destination end, 4 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
A320 at 3,500 ft, 5 nm west, 3:13 pm PDT (22:13 UTC): a broken layer above 3,500 ft, remarks: during the descent RY25L. At the destination end, 5 nm west of the line.
as filed, and in English
```
LAX UA /OV LAX/TM 2213/FL035/TP A320/SK BKN-BASE035/RM DURD RY25L
```
Report
a routine report filed through LAX
Where
over LAX
Time
22:13 UTC
Height
at 3,500 ft
Aircraft
A320
Sky
BKN-BASE035
Remarks
during the descent RY25L

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 1 forecast point nearest it (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	210° at 14 kt	+9 kt		111 kt	20 min	5:29 pm PDT (00:29 UTC)
6,500 ft	210° at 18 kt	+12 kt	6 °C	108 kt	21 min	5:30 pm PDT (00:30 UTC)
8,500 ft	230° at 25 kt	+21 kt	4 °C	99 kt	22 min	5:31 pm PDT (00:31 UTC)
10,500 ft	230° at 30 kt	+26 kt	1 °C	94 kt	24 min	5:33 pm PDT (00:33 UTC)
12,500 ft	230° at 32 kt	+28 kt	-3 °C	92 kt	24 min	5:33 pm PDT (00:33 UTC)
14,500 ft	220° at 34 kt	+27 kt	-6 °C	93 kt	24 min	5:33 pm PDT (00:33 UTC)
16,500 ft	210° at 37 kt	+27 kt	-10 °C	93 kt	24 min	5:33 pm PDT (00:33 UTC)
18,000 ft FL180	210° at 39 kt	+26 kt	-12 °C	94 kt	24 min	5:33 pm PDT (00:33 UTC)
24,000 ft FL240	220° at 51 kt	+40 kt	-20 °C	80 kt	28 min	5:37 pm PDT (00:37 UTC)
30,000 ft FL300	220° at 48 kt	+38 kt	-29 °C	82 kt	27 min	5:36 pm PDT (00:36 UTC)
34,000 ft FL340	210° at 51 kt	+34 kt	-34 °C	86 kt	26 min	5:35 pm PDT (00:35 UTC)
39,000 ft FL390	210° at 52 kt	+35 kt	-44 °C	85 kt	26 min	5:35 pm PDT (00:35 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
ONT	used from 0 nm out; 19 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
ONT Ontario, CA	departure	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)
FUL Fullerton, CA	19 nm out, 7 nm south of the line, tower	VFR Sky: a broken layer at 3,500 feet, a broken layer at 4,800 feet	from the southwest (220°) at 4 knots	10+ mi	3,500 ft	96 ft	23:53 UTC
HHR Hawthorne, CA	destination	VFR Sky: a broken layer at 4,300 feet, a broken layer at 5,000 feet, a broken layer at 12,000 feet	from the west (270°) at 7 knots	10+ mi	4,300 ft	65 ft	4:53 pm PDT (23:53 UTC)

The highest airport on this list sits at 944 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At HHR when you get there the forecast at the estimated arrival, 5:29 pm PDT (00:29 UTC)

HHR has no terminal forecast; use the nearest airport that does.

The forecast for ONT, the departure

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

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

4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 9 nm from the route, 19 nm along the route · security · ZLA

Daylight

Sunset at ONT 6:20 pm PDT (01:20 UTC), at HHR 6:23 pm PDT (01:23 UTC) (civil twilight ends 6:48 pm PDT (01:48 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: Ontario International, Jack Northrop Fld/Hawthorne Municipal.