Plan a flight · Mon 10:01 am AST (14:01 UTC)

Luis Munoz Marin International to Seattle-Tacoma International SJU → SEA

3,238 nautical miles (3,726 statute miles) northwest on a straight line, true course 316°, about 327° magnetic at the departure end (variation 11W). At 120 knots that is 28 h 55 min at the quickest height in today's winds (8,500 ft, a 8-knot headwind), arriving about 11:56 am PDT (18:56 UTC). Right now SJU is VFR, wind from the east (080°) at 12 knots; SEA is VFR, wind from the southeast (130°) 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

SIGMET E42E: thunderstorms (a convective SIGMET) up to 42,000 ft, until 11:55 am AST (15:55 UTC). Over the route from 819 to 879 nm out.

as issued

WSUS31 KKCI 121355
MKCE WST 121355
CONVECTIVE SIGMET 42E
VALID UNTIL 1555Z
FL CSTL WTRS
FROM 160E OMN-240ENE TRV-210ENE PBI-170ENE PBI-160E OMN
AREA EMBD TS MOV LTL. TOPS TO FL420.
REF INTL SIGMET CHARLIE SERIES.

AIRMET TANGO 2W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 1799 to 2098 nm out.
AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 2248 to 2868 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Near the route, 2438 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 2568 to 3068 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 2598 to 2768 nm out.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 2788 to 3068 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 2918 to 3188 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 SJU.

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

urgent B763 at 2,000 ft, 34 nm southwest, 7:57 am AST (11:57 UTC): a routine report with nothing remarked on. 1969 nm along the route, 34 nm southwest of the line.
as filed, and in English
```
FOE UUA /OV 130003/TM 1157/FL020/TP B763/WV LLWS
```
Report
an urgent report filed through FOE
Where
wind from 130° at 3 knots
Time
11:57 UTC
Height
at 2,000 ft
Aircraft
B763
Wind
low-level wind shear
B738 at 36,000 ft, 38 nm northeast, 8:23 am AST (12:23 UTC): a routine report with nothing remarked on. At the departure end, 38 nm northeast of the line.
as filed, and in English
```
SJU UA /OV SJU044038/TM 1223/FL360/TP B738/SK TOPS FL400
```
Report
a routine report filed through SJU
Where
38 nm northeast (044°) of SJU
Time
12:23 UTC
Height
at 36,000 ft
Aircraft
B738
Sky
tops 40,000 ft
B763 at 9,000 ft, 5 nm southwest, 9:06 am AST (13:06 UTC): a broken layer up to 14,000 ft. At the departure end, 5 nm southwest of the line.
as filed, and in English
```
SJU UA /OV SJU312023/TM 1306/FL090/TP B763/SK BKN-TOP 140
```
Report
a routine report filed through SJU
Where
23 nm northwest (312°) of SJU
Time
13:06 UTC
Height
at 9,000 ft
Aircraft
B763
Sky
a broken layer, tops 14,000 ft
A21N at 34,000 ft, 50 nm southwest, 9:30 am AST (13:30 UTC): light chop turbulence. 1069 nm along the route, 50 nm southwest of the line.
as filed, and in English
```
SGJ UA /OV SGJ090020/TM 1330/FL340/TP A21N/TB INTMT LGT CHOP
```
Report
a routine report filed through SGJ
Where
20 nm east (090°) of SGJ
Time
13:30 UTC
Height
at 34,000 ft
Aircraft
A21N
Turbulence
intermittent light chop
B738 at 34,000 ft, 35 nm southwest, 9:09 am AST (13:09 UTC): light to moderate turbulence. 1169 nm along the route, 35 nm southwest of the line.
as filed, and in English
```
AMG UA /OV AMG145023/TM 1309/FL340/TP B738/TB LGT OCNL MOD
```
Report
a routine report filed through AMG
Where
23 nm southeast (145°) of AMG
Time
13:09 UTC
Height
at 34,000 ft
Aircraft
B738
Turbulence
light occasional moderate
A320 at 32,000 ft, 28 nm northeast, 9:28 am AST (13:28 UTC): light turbulence, remarks: visual conditions. 1179 nm along the route, 28 nm northeast of the line.
as filed, and in English
```
SAV UA /OV SAV270020/TM 1328/FL320/TP A320/TB CONS LGT /RM VMC
```
Report
a routine report filed through SAV
Where
20 nm west (270°) of SAV
Time
13:28 UTC
Height
at 32,000 ft
Aircraft
A320
Turbulence
continuous light
Remarks
visual conditions
B738 at 37,000 ft, 29 nm southwest, 8:06 am AST (12:06 UTC): no turbulence. 1189 nm along the route, 29 nm southwest of the line.
as filed, and in English
```
AMG UA /OV AMG/TM 1206/FL370/TP B738/TB NEG
```
Report
a routine report filed through AMG
Where
over AMG
Time
12:06 UTC
Height
at 37,000 ft
Aircraft
B738
Turbulence
none
F2TH at 41,000 ft, 7 nm north, 7:57 am AST (11:57 UTC): light turbulence, remarks: ztlfd 02. 1399 nm along the route, 7 nm north of the line.
as filed, and in English
```
ATL UA /OV RMG270015/TM 1157/FL410/TP F2TH/TB LGT/RM ZTLFD 02
```
Report
a routine report filed through ATL
Where
15 nm west (270°) of RMG
Time
11:57 UTC
Height
at 41,000 ft
Aircraft
F2TH
Turbulence
light
Remarks
ztlfd 02
B38M at 39,000 ft, 20 nm southwest, 7:58 am AST (11:58 UTC): light turbulence, remarks: ztlfd 02. 1409 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
ATL UA /OV CTJ300040/TM 1158/FL390/TP B38M/TB LGT/RM ZTLFD 02
```
Report
a routine report filed through ATL
Where
40 nm northwest (300°) of CTJ
Time
11:58 UTC
Height
at 39,000 ft
Aircraft
B38M
Turbulence
light
Remarks
ztlfd 02
PC12 at 22,000 ft, 48 nm southwest, 8:00 am AST (12:00 UTC): light rime icing, -9 °C, remarks: no icing at FL200 zkcfdc xj. 2018 nm along the route, 48 nm southwest of the line.
as filed, and in English
```
MHK UA /OV MHK/TM 1200/FL220/TP PC12/TA M09/IC LGT RIME/RM NEG ICING AT FL200 /ZKCFDC XJ
```
Report
a routine report filed through MHK
Where
over MHK
Time
12:00 UTC
Height
at 22,000 ft
Aircraft
PC12
Temperature
−9 °C
Icing
light rime
Remarks
no icing at FL200 zkcfdc xj
B38M at 17,000 ft, 43 nm northeast, 8:41 am AST (12:41 UTC): no turbulence, remarks: during the climb. 2078 nm along the route, 43 nm northeast of the line.
as filed, and in English
```
LNK UA /OV LNK/TM 1241/FL170/TP B38M/TB NEG/RM DURC
```
Report
a routine report filed through LNK
Where
over LNK
Time
12:41 UTC
Height
at 17,000 ft
Aircraft
B38M
Turbulence
none
Remarks
during the climb
B38M at 39,000 ft, 24 nm southwest, 8:43 am AST (12:43 UTC): light chop turbulence. 2158 nm along the route, 24 nm southwest of the line.
as filed, and in English
```
HSI UA /OV HSI270030/TM 1243/FL390/TP B38M/TB CONS LGT CHOP
```
Report
a routine report filed through HSI
Where
30 nm west (270°) of HSI
Time
12:43 UTC
Height
at 39,000 ft
Aircraft
B38M
Turbulence
continuous light chop
B738 at 38,000 ft, 39 nm southwest, 9:09 am AST (13:09 UTC): light chop turbulence, remarks: ZDVWC-35. 2238 nm along the route, 39 nm southwest of the line.
as filed, and in English
```
LBF UA /OV LBF/TM 1309/FL380/TP B738/TB CONS LGT CHOP/RM -ZDVWC-35
```
Report
a routine report filed through LBF
Where
over LBF
Time
13:09 UTC
Height
at 38,000 ft
Aircraft
B738
Turbulence
continuous light chop
Remarks
ZDVWC-35
CRJ7 at 36,000 ft, 39 nm southwest, 8:09 am AST (12:09 UTC): light chop turbulence, remarks: zdvwc. 2238 nm along the route, 39 nm southwest of the line.
as filed, and in English
```
LBF UA /OV LBF/TM 1209/FL360/TP CRJ7/TB LGT CHOP/RM ZDVWC
```
Report
a routine report filed through LBF
Where
over LBF
Time
12:09 UTC
Height
at 36,000 ft
Aircraft
CRJ7
Turbulence
light chop
Remarks
zdvwc

3 more routine reports are on the map.

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 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 22 forecast points nearest it (MIA, MLB, JAX, SAV, ATL, HSV, BNA, CGI, COU, MKC, OMA, GRI, ONL, BFF, RAP, LND, BIL, DLN, LWS, GEG, YKM, SEA). 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	270° at 12 kt	+11 kt	18 °C	109 kt	29 h 42 min	12:43 pm PDT (19:43 UTC)
6,500 ft	280° at 11 kt	+10 kt	14 °C	110 kt	29 h 26 min	12:27 pm PDT (19:27 UTC)
8,500 ft	270° at 9 kt	+8 kt	10 °C	112 kt	28 h 55 min	11:56 am PDT (18:56 UTC)
10,500 ft	270° at 10 kt	+8 kt	6 °C	112 kt	28 h 55 min	11:56 am PDT (18:56 UTC)
12,500 ft	260° at 11 kt	+8 kt	3 °C	112 kt	28 h 55 min	11:56 am PDT (18:56 UTC)
14,500 ft	260° at 11 kt	+9 kt	-2 °C	111 kt	29 h 10 min	12:11 pm PDT (19:11 UTC)
16,500 ft	260° at 12 kt	+9 kt	-6 °C	111 kt	29 h 10 min	12:11 pm PDT (19:11 UTC)
18,000 ft FL180	260° at 13 kt	+9 kt	-9 °C	111 kt	29 h 10 min	12:11 pm PDT (19:11 UTC)
24,000 ft FL240	250° at 18 kt	+11 kt	-21 °C	109 kt	29 h 42 min	12:43 pm PDT (19:43 UTC)
30,000 ft FL300	270° at 26 kt	+22 kt	-33 °C	98 kt	33 h 02 min	4:03 pm PDT (23:03 UTC)
34,000 ft FL340	270° at 31 kt	+26 kt	-39 °C	94 kt	34 h 27 min	5:28 pm PDT (00:28 UTC)
39,000 ft FL390	270° at 30 kt	+25 kt	-48 °C	95 kt	34 h 05 min	5:06 pm PDT (00:06 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
MIA	used from 0 nm out; 884 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°
MLB	used from 799 nm out; 205 nm from the line	290/10	260/15 18°	290/12 13°	280/13 8°	250/20 -7°	260/18 -18°	240/17 -32°	250/20 -41°	250/22 -52°
JAX	used from 999 nm out; 107 nm from the line	310/22	310/19 16°	300/22 14°	290/25 8°	300/25 -7°	300/24 -18°	270/20 -33°	260/25 -41°	290/17 -51°
SAV	used from 1149 nm out; 43 nm from the line	330/16	310/15 14°	320/23 10°	310/30 7°	310/30 -6°	300/28 -19°	270/25 -32°	300/25 -39°	320/26 -50°
ATL	used from 1249 nm out; 72 nm from the line	330/32	340/36 17°	350/34 10°	340/25 6°	330/27 -6°	350/35 -18°	330/49 -32°	340/47 -41°	340/27 -51°
HSV	used from 1399 nm out; 52 nm from the line	300/20	310/14 16°	310/18 10°	310/15 4°	320/19 -5°	290/16 -18°	320/36 -32°	320/47 -41°	330/42 -50°
BNA	used from 1549 nm out; 80 nm from the line	300/20	300/14 15°	300/14 10°	300/13 4°	310/22 -5°	280/24 -18°	310/37 -33°	310/50 -41°	320/49 -51°
CGI	used from 1599 nm out; 62 nm from the line	260/22	250/15 15°	250/13 11°	250/16 6°	270/29 -7°	280/30 -18°	290/40 -31°	290/55 -40°	300/51 -51°
COU	used from 1749 nm out; 74 nm from the line	250/36	260/14 16°	250/5 12°	260/12 6°	260/24 -7°	260/35 -19°	280/58 -31°	280/62 -40°	290/60 -49°
MKC	used from 1899 nm out; 12 nm from the line	240/49	240/21 20°	220/19 13°	230/21 6°	260/26 -7°	250/37 -19°	270/66 -31°	270/65 -38°	280/60 -48°
OMA	used from 1999 nm out; 87 nm from the line	230/47	240/33 21°	230/22 13°	220/27 5°	240/35 -8°	250/43 -21°	260/47 -33°	260/59 -36°	270/58 -46°
GRI	used from 2048 nm out; 66 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
ONL	used from 2198 nm out; 84 nm from the line		250/31 22°	230/27 16°	220/25 8°	230/25 -9°	220/29 -22°	250/42 -33°	250/48 -36°	250/52 -46°
BFF	used from 2298 nm out; 74 nm from the line		280/28	260/39 11°	240/34 5°	210/38 -11°	210/52 -22°	230/61 -31°	230/61 -36°	240/56 -45°
RAP	used from 2448 nm out; 98 nm from the line		250/28 16°	260/31 10°	240/25 4°	210/35 -10°	200/45 -23°	230/47 -31°	230/47 -36°	230/51 -46°
LND	used from 2498 nm out; 125 nm from the line			240/10 3°	240/30 0°	220/42 -13°	230/52 -23°	220/54 -33°	220/52 -36°	220/53 -44°
BIL	used from 2598 nm out; 88 nm from the line		300/14	270/19 -2°	260/26 -2°	220/28 -13°	210/51 -25°	220/56 -33°	220/61 -39°	220/72 -45°
DLN	used from 2698 nm out; 91 nm from the line			190/10 -4°	220/23 -4°	210/21 -18°	210/43 -28°	210/60 -33°	210/72 -37°	210/67 -44°
LWS	used from 2898 nm out; 89 nm from the line	L/V	340/5 -3°	L/V -6°	040/7 -10°	100/23 -22°	180/30 -31°	190/11 -34°	200/11 -36°	220/23 -40°
GEG	used from 3048 nm out; 61 nm from the line		060/7 -2°	070/12 -6°	050/8 -8°	120/11 -21°	110/18 -33°	030/22 -37°	040/6 -38°	240/7 -41°
YKM	used from 3098 nm out; 48 nm from the line	360/6	360/11 -1°	030/20 -7°	040/21 -11°	020/55 -18°	010/84 -26°	010/79 -40°	010/45 -42°	350/23 -42°
SEA	used from 3198 nm out; 20 nm from the line	350/5	010/6 0°	010/9 -4°	010/27 -6°	010/51 -15°	360/58 -26°	360/60 -41°	350/55 -48°	340/30 -45°

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
SJU San Juan, PR	departure	VFR Sky: a few clouds at 2,500 feet, scattered clouds at 3,500 feet, scattered clouds at 4,500 feet	from the east (080°) at 12 knots	10+ mi	none	9 ft	9:56 am AST (13:56 UTC)
MCN Macon, GA	1279 nm out, 10 nm southwest of the line, tower	VFR	from the northwest (310°) at 6 knots	10+ mi	none	354 ft	13:53 UTC
ATL Atlanta, GA	1349 nm out, 11 nm northeast of the line, tower	VFR Sky: a few clouds at 20,000 feet	from the northwest (310°) at 10 knots	10+ mi	none	1,026 ft	13:52 UTC
MKC Kansas City, MO	1939 nm out, 3 nm east of the line, tower	VFR	from the south-southwest (200°) at 16 knots, gusting to 22	10+ mi	none	756 ft	13:54 UTC
MCI Kansas City, MO	1949 nm out, 7 nm northeast of the line, tower	VFR Sky: a broken layer at 20,000 feet	from the south-southwest (200°) at 15 knots, gusting to 25	10+ mi	20,000 ft	1,027 ft	13:53 UTC
CDR Chadron, NE	2378 nm out, 10 nm north of the line	IFR Sky: overcast at 600 feet	from the west-southwest (250°) at 3 knots	10+ mi	600 ft	3,297 ft	13:53 UTC
EKS Ennis, MT	2778 nm out, 1 nm south of the line	IFR Sky: a broken layer at 700 feet, overcast at 1,000 feet Weather: mist	calm	3 mi	700 ft	5,432 ft	13:55 UTC
LWS Lewiston, ID	3008 nm out, 9 nm southwest of the line, tower	VFR Sky: overcast at 4,300 feet	from the east-southeast (120°) at 3 knots	10+ mi	4,300 ft	1,442 ft	13:56 UTC
SEA Seattle, WA	destination	VFR Sky: a few clouds at 8,000 feet	from the southeast (130°) at 7 knots	10+ mi	none	432 ft	6:53 am PDT (13:53 UTC)

The highest airport on this list sits at 5,432 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SEA when you get there the forecast at the estimated arrival, 11:56 am PDT (18:56 UTC)

Wind from the south at 5 knots, visibility more than 6 miles, overcast at 10,000 feet VFR

The whole forecast for SEA

From Mon 5:00 am PDT (12:00 UTC): wind from the southeast at 5 knots, visibility more than 6 miles, clear skies
From Mon 9:00 am PDT (16:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm PDT (03:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Tue 4:00 am PDT (11:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, overcast at 10,000 feet

The forecast for SJU, the departure

From Mon 8:00 am AST (12:00 UTC): wind from the east at 9 knots, visibility more than 6 miles, showers nearby, scattered clouds at 3,000 feet, 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, scattered clouds at 2,500 feet, scattered clouds at 4,500 feet
From Mon 1:00 pm AST (17:00 UTC): wind from the east-northeast at 13 knots, gusting to 20, visibility more than 6 miles, 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

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

6/4508 CEIBA, PR 24 nm from the route, at the departure end · security · ZSU
6/6783 Perry, GA, Friday, October 9, 2026 through Monday, October 19, 2026 UTC 25 nm from the route, 1269 nm along the route · drones kept away from a public gathering · until 19 October · ZTL
6/8928 Atlanta, GA, Wednesday, October 14, 2026 Local 6 nm from the route, 1349 nm along the route · a VIP movement · starts Wednesday 14 October · ZTL

Daylight

Sunset at SJU 6:03 pm AST (22:03 UTC), at SEA 6:25 pm PDT (01:25 UTC) (civil twilight ends 6:56 pm PDT (01:56 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 Caribbean · loop National Weather Service

Radar now, the Southeast · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Luis Munoz Marin International, Seattle-Tacoma International.