Plan a flight · Tue 4:59 am MDT (10:59 UTC)

Friedman Memorial to San Diego International SUN → SAN

661 nautical miles (760 statute miles) south on a straight line, true course 193°, about 180° magnetic at the departure end (variation 13E). At 120 knots that is 5 h 10 min at the quickest height in today's winds (7,500 ft, a 8-knot tailwind), arriving about 9:09 am PDT (16:09 UTC). Right now SUN is VFR, wind from the northwest (320°) at 4 knots; SAN is VFR, wind calm. 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: 79 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 above 18,000 ft from 18,000 ft to 39,000 ft. Over the whole route.
AIRMET ZULU 1C: moderate icing up to 21,000 ft. Over the route from 10 to 207 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 345 nm out.
AIRMET SIERRA 11E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 79 to 335 nm out.
AIRMET ZULU 1C: moderate icing from 7,000 ft to 16,000 ft. Over the route from 286 to 414 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft from 14,000 ft to 18,000 ft. Over the route from 375 to 434 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 434 to 621 nm out.

Turbulence AIRMET in force: moderate turbulence from 18,000 ft to 39,000 ft, over the whole route; AIRMET in force: moderate turbulence from 14,000 ft to 18,000 ft, over the route from 375 to 434 nm out. No pilot has reported turbulence near the line in the last three hours. The government's turbulence forecast map ↗

Icing AIRMET in force: moderate icing up to 21,000 ft, over the route from 10 to 207 nm out; AIRMET in force: moderate icing from 7,000 ft to 16,000 ft, over the route from 286 to 414 nm out. No pilot has reported icing near the line in the last three hours. The freezing level is about 7,500 ft (from the winds-aloft temperatures), so icing is possible in cloud above that. The government's icing forecast map ↗

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 SUN.

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

No pilot reports within 50 nautical miles of the line in the last three hours.

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 6 forecast points nearest it (PIH, BAM, ELY, LAS, ONT, SAN). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	310° at 8 kt	−4 kt	5 °C	124 kt	5 h 20 min	9:19 am PDT (16:19 UTC)
7,500 ft	330° at 11 kt	−8 kt	0 °C	128 kt	5 h 10 min	9:09 am PDT (16:09 UTC)
9,500 ft	330° at 10 kt	−7 kt	-1 °C	127 kt	5 h 12 min	9:11 am PDT (16:11 UTC)
11,500 ft	300° at 9 kt	−2 kt	-4 °C	122 kt	5 h 25 min	9:24 am PDT (16:24 UTC)
13,500 ft	280° at 11 kt	+1 kt	-8 °C	119 kt	5 h 33 min	9:32 am PDT (16:32 UTC)
15,500 ft	270° at 13 kt	+4 kt	-12 °C	116 kt	5 h 42 min	9:41 am PDT (16:41 UTC)
17,500 ft	260° at 17 kt	+6 kt	-16 °C	114 kt	5 h 48 min	9:47 am PDT (16:47 UTC)
18,000 ft FL180	260° at 18 kt	+7 kt	-17 °C	113 kt	5 h 51 min	9:50 am PDT (16:50 UTC)
24,000 ft FL240	270° at 20 kt	+5 kt	-28 °C	115 kt	5 h 45 min	9:44 am PDT (16:44 UTC)
30,000 ft FL300	290° at 26 kt	−2 kt	-37 °C	122 kt	5 h 25 min	9:24 am PDT (16:24 UTC)
34,000 ft FL340	270° at 26 kt	+5 kt	-42 °C	115 kt	5 h 45 min	9:44 am PDT (16:44 UTC)
39,000 ft FL390	250° at 29 kt	+15 kt	-45 °C	105 kt	6 h 18 min	10:17 am PDT (17:17 UTC)

Based on data from the 13th at 06:00 UTC; valid on the 13th 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
PIH	used from 0 nm out; 81 nm from the line		020/14	040/10 -1°	130/7 -6°	120/16 -18°	120/32 -31°	170/30 -40°	180/29 -44°	180/16 -41°
BAM	used from 99 nm out; 104 nm from the line			010/19 -6°	050/10 -11°	080/20 -25°	080/31 -34°	010/28 -33°	360/27 -37°	340/15 -42°
ELY	used from 197 nm out; 43 nm from the line			340/15 -5°	L/V -10°	210/18 -23°	220/28 -38°	230/29 -33°	260/22 -36°	240/19 -41°
LAS	used from 345 nm out; 94 nm from the line		270/9 5°	220/11 -1°	250/19 -5°	260/59 -13°	270/75 -22°	280/74 -39°	260/64 -44°	240/61 -46°
ONT	used from 493 nm out; 78 nm from the line	270/6	300/14 5°	320/26 7°	300/35 4°	290/33 -11°	300/41 -21°	320/46 -39°	310/37 -47°	270/45 -52°
SAN	used from 592 nm out; 44 nm from the line	300/6	290/7 3°	320/20 11°	310/22 5°	290/25 -10°	320/31 -21°	340/32 -38°	280/23 -46°	260/42 -51°

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
SUN Hailey, ID	departure	VFR Sky: a broken layer at 6,000 feet	from the northwest (320°) at 4 knots	10+ mi	6,000 ft	5,319 ft	4:35 am MDT (10:35 UTC)
TWF Twin Falls, ID	59 nm out, 6 nm southeast of the line, tower	VFR Sky: scattered clouds at 4,000 feet, overcast at 5,000 feet	from the southwest (220°) at 12 knots, gusting to 20	10+ mi	5,000 ft	4,153 ft	10:53 UTC
LWL Wells, NV	148 nm out, 5 nm east of the line	no report just now				5,769 ft
RIV Riverside, CA	592 nm out, 17 nm west of the line, tower	VFR Sky: overcast at 6,000 feet	calm	10+ mi	6,000 ft	1,536 ft	09:55 UTC
CRQ Carlsbad, CA	641 nm out, 9 nm northwest of the line, tower	VFR Sky: overcast at 4,400 feet	from the east-northeast (070°) at 7 knots	10+ mi	4,400 ft	330 ft	10:53 UTC
SAN San Diego, CA	destination	VFR Sky: scattered clouds at 4,500 feet, overcast at 6,000 feet	calm	10+ mi	6,000 ft	16 ft	3:51 am PDT (10:51 UTC)

The highest airport on this list sits at 5,769 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

The codes as issued, and in English, for every airport in the table

SUN Hailey, ID