Plan a flight · Sun 11:01 pm PDT (06:01 UTC)

John Wayne/Orange County to Tri-Cities Airport SNA → PSC

758 nautical miles (872 statute miles) north on a straight line, true course 356°, about 344° magnetic at the departure end (variation 12E). At 120 knots that is 5 h 32 min at the quickest height in today's winds (39,000 ft, a 17-knot tailwind), arriving about 4:33 am PDT (11:33 UTC), after sunset at the destination. Right now SNA is VFR, wind calm; PSC is VFR, wind from the north-northwest (340°) 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: 96 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 route from 10 to 170 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 219 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the last 130 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 638 to 708 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 SNA.

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

B737 at 13,000 ft, 19 nm southwest, 8:30 pm PDT (03:30 UTC): moderate turbulence. At the departure end, 19 nm southwest of the line.
as filed, and in English
```
SLI UA /OV SLI180020/TM 0330/FL130/TP B737/TB MOD
```
Report
a routine report filed through SLI
Where
20 nm south (180°) of SLI
Time
03:30 UTC
Height
at 13,000 ft
Aircraft
B737
Turbulence
moderate
PC12 at 17,000 ft, 23 nm east, 9:52 pm PDT (04:52 UTC): moderate turbulence, moderate rime icing, -15 °C, remarks: entered by zoa fdcs. 259 nm along the route, 23 nm east of the line.
as filed, and in English
```
TPH UA /OV OAL/TM 0452/FL 170/TP PC12/TA M15/TB MOD/IC MOD RIME/RM ENTERED BY ZOA FDCS AWC-WEB
```
Report
a routine report filed through TPH
Where
over OAL
Time
04:52 UTC
Height
at 17,000 ft
Aircraft
PC12
Temperature
−15 °C
Turbulence
moderate
Icing
moderate rime
Remarks
entered by zoa fdcs
E75L at 3,600 ft, 18 nm west, 8:30 pm PDT (03:30 UTC): overcast above 6,600 ft, remarks: bases 3,600 ft. At the departure end, 18 nm west of the line.
as filed, and in English
```
KLAX UA /OV 10 E LAX/TM 0330/FL036/TP E75L/SK OVC066/RM BASES 036
```
Report
a routine report filed through KLAX
Where
10 east lax
Time
03:30 UTC
Height
at 3,600 ft
Aircraft
E75L
Sky
overcast from 6,600 ft
Remarks
bases 3,600 ft
B737 at 3,500 ft, 14 nm west, 8:25 pm PDT (03:25 UTC): a broken layer above 3,500 ft. At the departure end, 14 nm west of the line.
as filed, and in English
```
LGB UA /OV LGB/TM 0325/FL035/TP B737/SK BKN035
```
Report
a routine report filed through LGB
Where
over LGB
Time
03:25 UTC
Height
at 3,500 ft
Aircraft
B737
Sky
a broken layer from 3,500 ft
B38M at 3,000 ft, 20 nm east, 10:47 pm PDT (05:47 UTC): a broken layer from 2,900 ft to 8,000 ft, remarks: BASE030. At the departure end, 20 nm east of the line.
as filed, and in English
```
ONT UA /OV KONT080005/TM 0547/FL030/TP B38M/SK BKN029-TOP080/RM BASE030
```
Report
a routine report filed through ONT
Where
5 nm east (080°) of KONT
Time
05:47 UTC
Height
at 3,000 ft
Aircraft
B38M
Sky
a broken layer from 2,900 ft, tops 8,000 ft
Remarks
BASE030
A321 at 3,300 ft, 23 nm east, 9:59 pm PDT (04:59 UTC): a broken layer above 3,300 ft, remarks: during the descent. At the departure end, 23 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT078008/TM 0459/FL033/TP A321/SK BKN033-TOPUNKN/RM DURD
```
Report
a routine report filed through ONT
Where
8 nm east (078°) of ONT
Time
04:59 UTC
Height
at 3,300 ft
Aircraft
A321
Sky
a broken layer from 3,300 ft, tops unknown
Remarks
during the descent
B38M at 4,500 ft, 27 nm east, 9:15 pm PDT (04:15 UTC): a broken layer above 4,500 ft, remarks: during the descent. At the departure end, 27 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT078012/TM 0415/FL045/TP B38M/SK BKN045-TOPUNKN/RM DURD
```
Report
a routine report filed through ONT
Where
12 nm east (078°) of ONT
Time
04:15 UTC
Height
at 4,500 ft
Aircraft
B38M
Sky
a broken layer from 4,500 ft, tops unknown
Remarks
during the descent
A20N climbing, 17 nm east, 8:04 pm PDT (03:04 UTC): a routine report with nothing remarked on. At the departure end, 17 nm east 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, 13 nm east, 8:03 pm PDT (03:03 UTC): a routine report with nothing remarked on. At the departure end, 13 nm east 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
GLF5 at 3,500 ft, 29 nm west, 9:54 pm PDT (04:54 UTC): overcast above 3,600 ft. 40 nm along the route, 29 nm west of the line.
as filed, and in English
```
VNY UA /OV VNY36006/TM 0454/FL035/TP GLF5/SK OVC036
```
Report
a routine report filed through VNY
Where
VNY36006
Time
04:54 UTC
Height
at 3,500 ft
Aircraft
GLF5
Sky
overcast from 3,600 ft
E75L descending, 7 nm southeast, 9:35 pm PDT (04:35 UTC): light turbulence from 11,000 ft to 14,000 ft, light rime icing from 8,000 ft to 12,000 ft, -10 °C. At the destination end, 7 nm southeast of the line.
as filed, and in English
```
GEG UA /OV PDT/TM 0435/FLDURD/TP E75L/TA M10/TB LT TURB 140-110/IC LT RIME 120-080
```
Report
a routine report filed through GEG
Where
over PDT
Time
04:35 UTC
Height
during the descent
Aircraft
E75L
Temperature
−10 °C
Turbulence
lt turbulence from 14,000 ft to 11,000 ft
Icing
lt rime from 12,000 ft to 8,000 ft
E75L at 1,500 ft, 3 nm southeast, 9:49 pm PDT (04:49 UTC): remarks: low-level wind shear loss of 8 knots on final. At the destination end, 3 nm southeast of the line.
as filed, and in English
```
PSC UA /OV PSC120003/TM 0449/FL015/TP E75L/RM LLWS LOSS OF 8 KTS ON FINAL
```
Report
a routine report filed through PSC
Where
3 nm southeast (120°) of PSC
Time
04:49 UTC
Height
at 1,500 ft
Aircraft
E75L
Remarks
low-level wind shear loss of 8 knots on final

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 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 8 forecast points nearest it (ONT, WJF, BIH, RNO, BAM, LKV, RDM, YKM). 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	130° at 2 kt	−1 kt	2 °C	121 kt	6 h 16 min	5:17 am PDT (12:17 UTC)
6,500 ft	light and variable	−1 kt	2 °C	121 kt	6 h 16 min	5:17 am PDT (12:17 UTC)
8,500 ft	330° at 3 kt	+3 kt	-3 °C	117 kt	6 h 29 min	5:30 am PDT (12:30 UTC)
10,500 ft	280° at 3 kt	+1 kt	-5 °C	119 kt	6 h 22 min	5:23 am PDT (12:23 UTC)
12,500 ft	250° at 5 kt	−2 kt	-9 °C	122 kt	6 h 13 min	5:14 am PDT (12:14 UTC)
14,500 ft	250° at 6 kt	−1 kt	-12 °C	121 kt	6 h 16 min	5:17 am PDT (12:17 UTC)
16,500 ft	260° at 7 kt	−1 kt	-15 °C	121 kt	6 h 16 min	5:17 am PDT (12:17 UTC)
18,000 ft FL180	260° at 7 kt	−1 kt	-18 °C	121 kt	6 h 16 min	5:17 am PDT (12:17 UTC)
24,000 ft FL240	310° at 15 kt	+11 kt	-25 °C	109 kt	6 h 57 min	5:58 am PDT (12:58 UTC)
30,000 ft FL300	280° at 19 kt	+4 kt	-31 °C	116 kt	6 h 32 min	5:33 am PDT (12:33 UTC)
34,000 ft FL340	250° at 24 kt	−7 kt	-36 °C	127 kt	5 h 58 min	4:59 am PDT (11:59 UTC)
39,000 ft FL390	230° at 32 kt	−17 kt	-42 °C	137 kt	5 h 32 min	4:33 am PDT (11:33 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
ONT	used from 0 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°
WJF	used from 50 nm out; 16 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°
BIH	used from 150 nm out; 49 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°
RNO	used from 299 nm out; 71 nm from the line		010/9	320/10 -2°	210/23 -9°	210/34 -19°	220/36 -25°	230/31 -29°	230/41 -33°	230/38 -42°
BAM	used from 399 nm out; 75 nm from the line			310/7 0°	270/19 -7°	200/38 -17°	190/49 -28°	220/69 -29°	220/63 -33°	230/48 -41°
LKV	used from 449 nm out; 89 nm from the line			010/8 -8°	350/13 -11°	340/21 -21°	360/60 -26°	350/37 -32°	310/26 -35°	260/25 -39°
RDM	used from 598 nm out; 100 nm from the line		040/17 -1°	030/31 -8°	010/29 -12°	010/61 -19°	360/95 -25°	360/82 -36°	360/40 -37°	310/19 -40°
YKM	used from 698 nm out; 82 nm from the line	070/10	040/15 -1°	020/27 -8°	030/25 -13°	020/48 -20°	010/83 -27°	010/77 -37°	010/49 -40°	350/14 -41°

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
SNA Santa Ana, CA	departure	VFR Sky: a few clouds at 2,400 feet, a broken layer at 5,000 feet, overcast at 6,500 feet	calm	10+ mi	5,000 ft	55 ft	10:53 pm PDT (05:53 UTC)
PMD Palmdale, CA	60 nm out, 7 nm west of the line, tower	VFR	from the west-southwest (240°) at 15 knots	10+ mi	none	2,542 ft	05:53 UTC
MHV Mojave, CA	80 nm out, 9 nm west of the line, tower	VFR Sky: a few clouds at 2,300 feet, overcast at 3,300 feet	from the west-southwest (240°) at 13 knots	10+ mi	3,300 ft	2,801 ft	05:55 UTC
BIH Bishop, CA	219 nm out, 9 nm west of the line	VFR	variable at 4 knots	10+ mi	none	4,124 ft	05:56 UTC
HTH Hawthorne, NV	299 nm out, 16 nm west of the line	IFR Sky: a few clouds at 300 feet, scattered clouds at 2,400 feet, scattered clouds at 3,100 feet Weather: haze	from the north-northwest (330°) at 12 knots	2.5 mi	none	4,230 ft	05:55 UTC
FLX Fallon, NV	349 nm out, 17 nm west of the line	no report just now				3,966 ft
LOL Lovelock, NV	389 nm out, 7 nm southwest of the line	VFR Sky: a broken layer at 10,000 feet	from the north-northeast (020°) at 7 knots	10+ mi	10,000 ft	3,907 ft	05:53 UTC
BNO Burns, OR	598 nm out, 6 nm west of the line	VFR	from the north-northeast (030°) at 7 knots	10+ mi	none	4,148 ft	05:53 UTC
GCD John Day, OR	648 nm out, 4 nm southwest of the line	VFR Sky: overcast at 3,500 feet	from the west-northwest (290°) at 6 knots	10+ mi	3,500 ft	3,702 ft	05:35 UTC
PDT Pendleton, OR	718 nm out, 10 nm northeast of the line, tower	VFR Sky: overcast at 6,000 feet	from the southeast (130°) at 6 knots	10+ mi	6,000 ft	1,494 ft	05:53 UTC
PSC Pasco, WA	destination	VFR Sky: overcast at 9,000 feet	from the north-northwest (340°) at 6 knots	10+ mi	9,000 ft	410 ft	10:53 pm PDT (05:53 UTC)

The highest airport on this list sits at 4,230 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At PSC when you get there the forecast at the estimated arrival, 4:33 am PDT (11:33 UTC)

Wind from the north at 8 knots, visibility more than 6 miles, scattered clouds at 7,000 feet, a broken layer at 10,000 feet VFR

The whole forecast for PSC

From Sun 11:00 pm PDT (06:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
From Mon 4:00 pm PDT (23:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet

The forecast for SNA, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 5,000 feet
At times between Mon 2:00 am PDT (09:00 UTC) and 5:00 am PDT (12:00 UTC): a broken layer at 2,500 feet, a broken layer at 5,000 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 7:00 pm PDT (02:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 3,000 feet, a broken layer at 5,000 feet

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

4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 0 nm from the route, at the departure end · security · ZLA
6/8783 38NM NE BAKERSFIELD, CA, Saturday, October 10, 2026 through Friday, October 23, 2026 UTC 13 nm from the route, 120 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 23 October · ZLA

Daylight

Sunset at SNA 6:21 pm PDT (01:21 UTC), at PSC 6:15 pm PDT (01:15 UTC) (civil twilight ends 6:45 pm PDT (01:45 UTC)). At 120 knots the arrival at PSC is before sunrise there (7:09 am PDT (14:09 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 Pacific Northwest · 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: John Wayne/Orange County, Tri-Cities Airport.