Plan a flight · Mon 4:31 am PDT (11:31 UTC)

San Diego International to Luis Munoz Marin International SAN → SJU

2,872 nautical miles (3,305 statute miles) east on a straight line, true course 094°, about 083° magnetic at the departure end (variation 11E). At 120 knots that is 19 h 40 min at the quickest height in today's winds (34,000 ft, a 26-knot tailwind), arriving about 3:11 am AST (07:11 UTC), after sunset at the destination. Right now SAN is VFR, wind calm; SJU 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: 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 SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, at the departure end.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 20 to 70 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, 319 nm along 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 SAN.

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

A320 at 21,000 ft, 21 nm south, 3:45 am PDT (10:45 UTC): moderate chop turbulence, remarks: zhu. 1037 nm along the route, 21 nm south of the line.
as filed, and in English
```
SAT UA /OV SAT090060/TM 1045/FL210/TP A320/TB OCNL MOD CHOP/RM ZHU
```
Report
a routine report filed through SAT
Where
60 nm east (090°) of SAT
Time
10:45 UTC
Height
at 21,000 ft
Aircraft
A320
Turbulence
occasional moderate chop
Remarks
zhu
B737 at 38,000 ft, 48 nm north, 4:05 am PDT (11:05 UTC): light chop turbulence, wind 306° at 27 knots. 918 nm along the route, 48 nm north of the line.
as filed, and in English
```
BWD UA /OV SJT094066/TM 1105/FL380/TP B737/WV 306027KT/TB LGT CHOP CONS/RM AWC-WEB
```
Report
a routine report filed through BWD
Where
66 nm east (094°) of SJT
Time
11:05 UTC
Height
at 38,000 ft
Aircraft
B737
Wind
from 306° at 27 knots
Turbulence
light chop continuous
Remarks
B737 at 1,800 ft, 28 nm south, 4:18 am PDT (11:18 UTC): remarks: KSAT base 1,800 ft, on top 3,500 ft. 977 nm along the route, 28 nm south of the line.
as filed, and in English
```
SAT UA /OV SAT/TM 1118/FL018/TP B737/RM KSAT BASE 018, ON TOP 035
```
Report
a routine report filed through SAT
Where
over SAT
Time
11:18 UTC
Height
at 1,800 ft
Aircraft
B737
Remarks
KSAT base 1,800 ft, on top 3,500 ft
A320 at 2,300 ft, 28 nm south, 3:37 am PDT (10:37 UTC): remarks: KSAT base 2,300 ft, on top 4,000 ft. 977 nm along the route, 28 nm south of the line.
as filed, and in English
```
SAT UA /OV SAT/TM 1037/FL023/TP A320/RM KSAT BASE 023, ON TOP 040
```
Report
a routine report filed through SAT
Where
over SAT
Time
10:37 UTC
Height
at 2,300 ft
Aircraft
A320
Remarks
KSAT base 2,300 ft, on top 4,000 ft
B738 at 38,000 ft, 15 nm northeast, 4:22 am PDT (11:22 UTC): no turbulence, remarks: zhu. 1007 nm along the route, 15 nm northeast of the line.
as filed, and in English
```
AUS UA /OV KCWK360015/TM 1122/FL380/TP B738/TB NEG/RM ZHU
```
Report
a routine report filed through AUS
Where
15 nm north (360°) of KCWK
Time
11:22 UTC
Height
at 38,000 ft
Aircraft
B738
Turbulence
none
Remarks
zhu
B748 at 40,000 ft, 15 nm northeast, 4:17 am PDT (11:17 UTC): no turbulence, remarks: smooth zhu. 1007 nm along the route, 15 nm northeast of the line.
as filed, and in English
```
AUS UA /OV KCWK270015/TM 1117/FL400/TP B748/TB NEG/RM SMOOTH ZHU
```
Report
a routine report filed through AUS
Where
15 nm west (270°) of KCWK
Time
11:17 UTC
Height
at 40,000 ft
Aircraft
B748
Turbulence
none
Remarks
smooth zhu
SF30 at 21,000 ft, 32 nm north, 2:35 am PDT (09:35 UTC): light rime icing, -10 °C, remarks: zhu. 1127 nm along the route, 32 nm north of the line.
as filed, and in English
```
IAH UA /OV DAS02002/TM 0935/FL210/TP SF30/TA M10/IC LGT RIME/RM ZHU
```
Report
a routine report filed through IAH
Where
DAS02002
Time
09:35 UTC
Height
at 21,000 ft
Aircraft
SF30
Temperature
−10 °C
Icing
light rime
Remarks
zhu
C25B at 40,000 ft, 21 nm south, 4:12 am PDT (11:12 UTC): no turbulence. 1875 nm along the route, 21 nm south of the line.
as filed, and in English
```
EYW UA /OV EYW315045/TM 1112/FL400/TP C25B/TB NEG
```
Report
a routine report filed through EYW
Where
45 nm northwest (315°) of EYW
Time
11:12 UTC
Height
at 40,000 ft
Aircraft
C25B
Turbulence
none

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 17 forecast points nearest it (SAN, BLH, PHX, TUS, ELP, MRF, INK, DRT, SAT, CLL, HOU, LCH, MSY, MOB, PIE, EYW, MIA). 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	170° at 6 kt	+2 kt		118 kt	24 h 20 min	7:51 am AST (11:51 UTC)
5,500 ft	190° at 6 kt	0	16 °C	120 kt	23 h 56 min	7:27 am AST (11:27 UTC)
7,500 ft	200° at 7 kt	−1 kt	14 °C	121 kt	23 h 44 min	7:15 am AST (11:15 UTC)
9,500 ft	210° at 8 kt	−2 kt	11 °C	122 kt	23 h 32 min	7:03 am AST (11:03 UTC)
11,500 ft	210° at 9 kt	−4 kt	8 °C	124 kt	23 h 10 min	6:41 am AST (10:41 UTC)
13,500 ft	220° at 12 kt	−6 kt	3 °C	126 kt	22 h 48 min	6:19 am AST (10:19 UTC)
15,500 ft	230° at 14 kt	−10 kt	-1 °C	130 kt	22 h 06 min	5:37 am AST (09:37 UTC)
17,500 ft	240° at 17 kt	−13 kt	-5 °C	133 kt	21 h 36 min	5:07 am AST (09:07 UTC)
18,000 ft FL180	240° at 18 kt	−14 kt	-6 °C	134 kt	21 h 26 min	4:57 am AST (08:57 UTC)
24,000 ft FL240	240° at 23 kt	−17 kt	-16 °C	137 kt	20 h 58 min	4:29 am AST (08:29 UTC)
30,000 ft FL300	250° at 26 kt	−22 kt	-30 °C	142 kt	20 h 14 min	3:45 am AST (07:45 UTC)
34,000 ft FL340	250° at 28 kt	−26 kt	-40 °C	146 kt	19 h 40 min	3:11 am AST (07:11 UTC)
39,000 ft FL390	260° at 24 kt	−23 kt	-51 °C	143 kt	20 h 05 min	3:36 am AST (07:36 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
SAN	used from 0 nm out; 25 nm from the line	240/10	220/19 6°	230/26 2°	230/29 -3°	230/43 -11°	220/61 -20°	220/72 -29°	220/75 -38°	220/71 -48°
BLH	used from 100 nm out; 64 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 199 nm out; 74 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 249 nm out; 45 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°
ELP	used from 449 nm out; 79 nm from the line		300/8	210/14 12°	210/28 6°	230/47 -6°	230/56 -14°	220/58 -27°	230/60 -38°	230/56 -50°
MRF	used from 648 nm out; 50 nm from the line			210/12 15°	190/5 10°	220/19 -4°	240/30 -13°	220/29 -28°	240/24 -38°	250/18 -51°
INK	used from 698 nm out; 44 nm from the line		220/17 21°	230/12 14°	210/13 7°	220/29 -5°	240/41 -14°	230/43 -28°	250/41 -38°	250/33 -51°
DRT	used from 798 nm out; 81 nm from the line	160/26	180/14 17°	200/18 15°	200/20 9°	210/21 -3°	220/14 -13°	210/17 -29°	280/12 -39°	320/20 -51°
SAT	used from 898 nm out; 66 nm from the line	160/18	180/22 17°	190/16 14°	210/16 9°	220/16 -5°	200/11 -14°	250/8 -29°	330/8 -40°	020/26 -51°
CLL	used from 1047 nm out; 55 nm from the line	180/24	170/21 19°	180/10 14°	230/7 8°	230/16 -6°	260/20 -13°	290/23 -29°	320/21 -39°	340/35 -51°
HOU	used from 1097 nm out; 22 nm from the line	180/22	180/20 16°	170/7 15°	L/V 8°	220/11 -6°	260/15 -13°	310/20 -30°	320/20 -40°	350/32 -51°
LCH	used from 1197 nm out; 74 nm from the line	170/21	160/23 18°	170/13 13°	170/6 8°	300/12 -7°	280/16 -14°	320/27 -30°	330/23 -41°	340/38 -51°
MSY	used from 1346 nm out; 112 nm from the line	150/9	140/8 18°	L/V 13°	L/V 6°	320/15 -5°	310/16 -16°	320/32 -31°	340/35 -40°	350/34 -52°
MOB	used from 1546 nm out; 211 nm from the line	L/V	L/V 18°	020/8 11°	L/V 6°	330/12 -5°	330/23 -17°	330/30 -32°	350/39 -41°	340/40 -53°
PIE	used from 1596 nm out; 220 nm from the line	360/10	340/12 18°	330/9 13°	290/12 8°	260/21 -7°	280/18 -18°	250/20 -33°	250/26 -41°	250/20 -51°
EYW	used from 1795 nm out; 108 nm from the line	080/9	050/5 18°	070/5 13°	060/6 9°	L/V -6°	280/11 -17°	260/18 -32°	250/21 -41°	260/21 -52°
MIA	used from 1945 nm out; 59 nm from the line	L/V	L/V 17°	L/V 13°	L/V 8°	270/6 -6°	250/9 -17°	290/17 -32°	280/25 -41°	280/21 -52°

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
SAN San Diego, CA	departure	VFR Sky: a few clouds at 1,800 feet, scattered clouds at 2,700 feet, a broken layer at 3,500 feet Weather: mist	calm	6 mi	3,500 ft	16 ft	4:24 am PDT (11:24 UTC)
NYL Yuma, AZ	130 nm out, 7 nm north of the line, tower	VFR Sky: overcast at 6,500 feet	from the east-southeast (120°) at 4 knots	10+ mi	6,500 ft	213 ft	10:57 UTC
TUS Tucson, AZ	319 nm out, 4 nm south of the line, tower	VFR Sky: a broken layer at 7,000 feet	from the south-southeast (150°) at 5 knots	10+ mi	7,000 ft	2,643 ft	10:53 UTC
SOA Sonora, TX	858 nm out, 4 nm west of the line	marginal VFR Sky: overcast at 1,400 feet	calm	10+ mi	1,400 ft	2,139 ft	11:15 UTC
HYI Austin, TX	1007 nm out, 6 nm southwest of the line, tower	marginal VFR Sky: a broken layer at 1,900 feet, overcast at 2,400 feet	from the east (090°) at 3 knots	10+ mi	1,900 ft	594 ft	10:56 UTC
GLS Galveston, TX	1167 nm out, 2 nm west of the line, tower	VFR Sky: a few clouds at 2,400 feet	from the southeast (130°) at 7 knots	10+ mi	none	5 ft	12:46 UTC
MTH Marathon, FL	1955 nm out, 16 nm southwest of the line	VFR Sky: a few clouds at 2,700 feet, a few clouds at 8,000 feet	from the northeast (050°) at 6 knots	10+ mi	none	7 ft	10:53 UTC
MBPV Providenciales,	2463 nm out, 20 nm northeast of the line, tower	VFR Sky: scattered clouds at 1,400 feet	from the east-northeast (060°) at 3 knots	6+ mi	none	13 ft	11:00 UTC
ABO Arecibo, PR	2842 nm out, 18 nm southwest of the line	no report just now				20 ft
SJU San Juan, PR	destination	VFR Sky: scattered clouds at 3,000 feet, scattered clouds at 4,500 feet	calm	10+ mi	none	9 ft	6:56 am AST (10:56 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 SJU when you get there the forecast at the estimated arrival, 3:11 am AST (07:11 UTC)

Wind from the east-southeast at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 feet VFR

The whole forecast for SJU

From Mon 3:00 am AST (07:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), scattered clouds at 5,000 feet
From Mon 10:00 am AST (14:00 UTC): wind from the east at 11 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, scattered clouds at 4,000 feet
From Mon 1:00 pm AST (17:00 UTC): wind from the east at 13 knots, gusting to 20, visibility more than 6 miles, light rain showers, thunderstorms nearby, scattered clouds at 2,500 feet (thunderheads), a broken layer at 5,000 feet
From Mon 7:00 pm AST (23:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, scattered clouds at 6,000 feet

The forecast for SAN, the departure

From Mon 2:00 am PDT (09:00 UTC): wind light and variable, visibility more than 6 miles, showers nearby, a broken layer at 2,600 feet, overcast at 3,500 feet
At times between Mon 2:00 am PDT (09:00 UTC) and 5:00 am PDT (12:00 UTC): scattered clouds at 2,500 feet, a broken layer at 3,500 feet
From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, a broken layer at 4,000 feet
From Mon 12:00 pm PDT (19:00 UTC): wind from the west-southwest at 10 knots, gusting to 17, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 5,000 feet
From Mon 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 8:00 pm PDT (03:00 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

6/4812 El Centro, CA, Wednesday, July 15, 2026 through Tuesday, July 13, 2027 Local 22 nm from the route, at the departure end · security · until 13 July · ZLA
6/2652 Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 3 nm from the route, at the departure end · security · until 2 January · ZLA
6/2656 Coyote Wells, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 6 nm from the route, at the departure end · security · until 2 January · ZLA
6/2657 Calexico, CA, Saturday, July 4, 2026 through Saturday, January 2, 2027 Local 6 nm from the route, at the departure end · security · until 2 January · ZLA
6/4508 CEIBA, PR 24 nm from the route, at the destination end · security · ZSU

Daylight

Sunset at SAN 6:18 pm PDT (01:18 UTC), at SJU 6:03 pm AST (22:03 UTC) (civil twilight ends 6:25 pm AST (22:25 UTC)). At 120 knots the arrival at SJU is before sunrise there (6:17 am AST (10:17 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 now, the southern Plains · 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: San Diego International, Luis Munoz Marin International.