Plan a flight · Mon 5:09 am PDT (12:09 UTC)

Ontario International to Tucson International ONT → TUS

355 nautical miles (408 statute miles) east on a straight line, true course 107°, about 095° magnetic at the departure end (variation 12E). At 120 knots that is 2 h 17 min at the quickest height in today's winds (34,000 ft, a 35-knot tailwind), arriving about 7:26 am MST (14:26 UTC). Right now ONT is marginal VFR, wind from the southwest (220°) at 4 knots; TUS is VFR, wind from the southeast (140°) at 5 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: 2 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 128 nm of the route.
AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 49 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the destination end.

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

A333 descending, 0 nm southwest, 4:05 am PDT (11:05 UTC): overcast from 1,500 ft to 7,000 ft, remarks: during the descent runway 26R. At the departure end, 0 nm southwest of the line.
as filed, and in English
```
ONT UA /OV ONT080/TM 1105/FLUNKN/TP A333/SK OVC015 - TOP070/RM DURD RY26R
```
Report
a routine report filed through ONT
Where
ONT080
Time
11:05 UTC
Height
height not given
Aircraft
A333
Sky
overcast from 1,500 ft, tops 7,000 ft
Remarks
during the descent runway 26R
B744 at 1,700 ft, 41 nm west, 2:24 am PDT (09:24 UTC): a few clouds above 1,700 ft, remarks: during the descent runway 25L lax. At the departure end, 41 nm west of the line.
as filed, and in English
```
LAX UA /OV KLAX/TM 0924/FL017/TP B744/SK FEW017/RM DURD RY25L LAX
```
Report
a routine report filed through LAX
Where
over KLAX
Time
09:24 UTC
Height
at 1,700 ft
Aircraft
B744
Sky
a few clouds from 1,700 ft
Remarks
during the descent runway 25L lax

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 4 forecast points nearest it (ONT, BLH, PHX, TUS). 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	220° at 16 kt	−6 kt		126 kt	2 h 49 min	7:58 am MST (14:58 UTC)
5,500 ft	210° at 19 kt	−3 kt	13 °C	123 kt	2 h 53 min	8:02 am MST (15:02 UTC)
7,500 ft	200° at 25 kt	−2 kt	7 °C	122 kt	2 h 55 min	8:04 am MST (15:04 UTC)
9,500 ft	200° at 31 kt	−2 kt	4 °C	122 kt	2 h 55 min	8:04 am MST (15:04 UTC)
11,500 ft	210° at 33 kt	−5 kt	0 °C	125 kt	2 h 50 min	7:59 am MST (14:59 UTC)
13,500 ft	210° at 39 kt	−10 kt	-3 °C	130 kt	2 h 44 min	7:53 am MST (14:53 UTC)
15,500 ft	220° at 45 kt	−15 kt	-6 °C	135 kt	2 h 38 min	7:47 am MST (14:47 UTC)
17,500 ft	220° at 52 kt	−21 kt	-9 °C	141 kt	2 h 31 min	7:40 am MST (14:40 UTC)
18,000 ft FL180	220° at 54 kt	−22 kt	-10 °C	142 kt	2 h 30 min	7:39 am MST (14:39 UTC)
24,000 ft FL240	220° at 67 kt	−24 kt	-20 °C	144 kt	2 h 28 min	7:37 am MST (14:37 UTC)
30,000 ft FL300	220° at 80 kt	−29 kt	-29 °C	149 kt	2 h 23 min	7:32 am MST (14:32 UTC)
34,000 ft FL340	220° at 85 kt	−35 kt	-37 °C	155 kt	2 h 17 min	7:26 am MST (14:26 UTC)
39,000 ft FL390	220° at 87 kt	−31 kt	-47 °C	151 kt	2 h 21 min	7:30 am MST (14:30 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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; 25 nm from the line	250/11	200/20 4°	210/27 3°	220/26 -4°	240/32 -13°	220/52 -21°	220/67 -30°	220/72 -37°	220/65 -46°
BLH	used from 49 nm out; 74 nm from the line	240/19	210/20 10°	200/27 4°	210/34 -2°	220/59 -10°	220/67 -20°	220/75 -29°	230/78 -38°	220/90 -47°
PHX	used from 197 nm out; 77 nm from the line	190/15	210/25 12°	200/34 4°	200/34 2°	220/58 -9°	220/75 -19°	220/91 -28°	220/100 -35°	220/95 -47°
TUS	used from 295 nm out; 34 nm from the line		200/12 13°	200/34 7°	210/41 4°	230/53 -7°	220/69 -19°	220/84 -27°	220/88 -36°	220/83 -48°

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	marginal VFR Sky: a few clouds at 1,400 feet, a broken layer at 2,300 feet, overcast at 3,300 feet Weather: light rain	from the southwest (220°) at 4 knots	7 mi	2,300 ft	944 ft	4:53 am PDT (11:53 UTC)
RIV Riverside, CA	20 nm out, 5 nm south of the line, tower	marginal VFR Sky: a few clouds at 1,800 feet, a broken layer at 2,800 feet, a broken layer at 5,000 feet, a broken layer at 11,000 feet	from the southeast (130°) at 8 knots	10+ mi	2,800 ft	1,536 ft	11:55 UTC
PSP Palm Springs, CA	59 nm out, 5 nm north of the line, tower	VFR Sky: scattered clouds at 5,500 feet, scattered clouds at 7,000 feet, overcast at 9,000 feet	from the south-southeast (160°) at 5 knots	10+ mi	9,000 ft	476 ft	11:53 UTC
CLR Calipatria, CA	118 nm out, 21 nm southwest of the line	no report just now				-181 ft
BLH Blythe, CA	148 nm out, 20 nm north of the line	VFR Sky: a broken layer at 7,000 feet	from the south (180°) at 5 knots	10+ mi	7,000 ft	399 ft	11:52 UTC
AVQ Marana, AZ	335 nm out, 11 nm north of the line	VFR Sky: a few clouds at 6,000 feet, scattered clouds at 7,000 feet, overcast at 9,000 feet	calm	10+ mi	9,000 ft	2,031 ft	11:55 UTC
TUS Tucson, AZ	destination	VFR Sky: scattered clouds at 8,000 feet	from the southeast (140°) at 5 knots	10+ mi	none	2,643 ft	4:57 am MST (11:57 UTC)

The highest airport on this list sits at 2,643 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At TUS when you get there the forecast at the estimated arrival, 7:26 am MST (14:26 UTC)

Wind from the south-southeast at 5 knots, visibility more than 6 miles, a broken layer at 7,000 feet VFR

The whole forecast for TUS

From Mon 5:00 am MST (12:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, a broken layer at 7,000 feet
From Mon 10:00 am MST (17:00 UTC): wind from the south-southwest at 14 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 8,000 feet
From Mon 4:00 pm MST (23:00 UTC): wind from the southwest at 16 knots, gusting to 25, visibility more than 6 miles, showers nearby, a broken layer at 6,000 feet
From Mon 11:00 pm MST (06:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 8,000 feet

The forecast for ONT, the departure

From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 3,000 feet
At times between Mon 5:00 am PDT (12:00 UTC) and 9:00 am PDT (16:00 UTC): visibility 5 miles, mist, a broken layer at 1,800 feet
From Mon 9:00 am PDT (16:00 UTC): wind from the southwest at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 1:00 pm PDT (20:00 UTC): wind from the west-southwest at 11 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 8:00 pm PDT (03:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 4,000 feet
From Mon 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet, scattered clouds at 4,000 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 departure end · security · ZLA

Daylight

Sunset at ONT 6:18 pm PDT (01:18 UTC), at TUS 5:53 pm MST (00:53 UTC) (civil twilight ends 6:18 pm MST (01:18 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, 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, Tucson International.