Plan a flight · Mon 3:03 am MDT (09:03 UTC)

City Of Colorado Springs Municipal to Luis Munoz Marin International COS → SJU

2,352 nautical miles (2,707 statute miles) east on a straight line, true course 110°, about 102° magnetic at the departure end (variation 8E). At 120 knots that is 15 h 22 min at the quickest height in today's winds (34,000 ft, a 33-knot tailwind), arriving about 8:25 pm AST (00:25 UTC), after sunset at the destination. Right now COS is VFR, wind from the south (180°) at 11 knots; SJU is VFR, wind from the east (080°) at 4 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 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 60 nm of the route.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the first 30 nm of the route.
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 90 to 518 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 28,000 ft to 41,000 ft. Over the route from 1176 to 1246 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 COS.

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

A321 at 31,000 ft, 9 nm north, 12:41 am MDT (06:41 UTC): moderate turbulence, remarks: mtw +/-15KT zdvwc. At the departure end, 9 nm north of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0641/FL310/TP A321/TB MOD/RM MTW +/-15KT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:41 UTC
Height
at 31,000 ft
Aircraft
A321
Turbulence
moderate
Remarks
mtw +/-15KT zdvwc
B38M at 22,000 ft, 43 nm northwest, 2:14 am MDT (08:14 UTC): no turbulence, remarks: zdvwc. At the departure end, 43 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN216059/TM 0814/FL220/TP B38M/TB NEG/RM ZDVWC
```
Report
a routine report filed through DEN
Where
59 nm southwest (216°) of DEN
Time
08:14 UTC
Height
at 22,000 ft
Aircraft
B38M
Turbulence
none
Remarks
zdvwc
B38M at 37,000 ft, 42 nm west, 1:42 am MDT (07:42 UTC): light chop turbulence, remarks: mtw +/-7KT zdvwc. At the departure end, 42 nm west of the line.
as filed, and in English
```
PUB UA /OV PUB280055/TM 0742/FL370/TP B38M/TB LGT CHOP/RM MTW +/-7KT. ZDVWC
```
Report
a routine report filed through PUB
Where
55 nm west (280°) of PUB
Time
07:42 UTC
Height
at 37,000 ft
Aircraft
B38M
Turbulence
light chop
Remarks
mtw +/-7KT zdvwc
A21N at 33,000 ft, 9 nm north, 12:59 am MDT (06:59 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. At the departure end, 9 nm north of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0659/FL330/TP A21N/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:59 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
A320 at 31,000 ft, 42 nm southwest, 12:58 am MDT (06:58 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. At the departure end, 42 nm southwest of the line.
as filed, and in English
```
PUB UA /OV PUB260040/TM 0658/FL310/TP A320/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through PUB
Where
40 nm west (260°) of PUB
Time
06:58 UTC
Height
at 31,000 ft
Aircraft
A320
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
CRJ2 at 22,000 ft, 47 nm northwest, 12:35 am MDT (06:35 UTC): no turbulence up to 26,000 ft, no icing, clear from 22,000 ft to 60,000 ft, remarks: during the descent ZDVWC-26. At the departure end, 47 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN220060/TM 0635/FL220/TP CRJ2/SK SKC/TB NEG BLO 260/IC NEG/RM DURD/ ZDVWC-26
```
Report
a routine report filed through DEN
Where
60 nm southwest (220°) of DEN
Time
06:35 UTC
Height
at 22,000 ft
Aircraft
CRJ2
Sky
clear
Turbulence
no below 26,000 ft
Icing
none
Remarks
during the descent ZDVWC-26

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 14 forecast points nearest it (PUB, GCK, GAG, ICT, OKC, TUL, FSM, LIT, JAN, MGM, TLH, JAX, MLB, 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	270° at 10 kt	−8 kt		128 kt	18 h 22 min	11:25 pm AST (03:25 UTC)
5,500 ft	260° at 12 kt	−10 kt	22 °C	130 kt	18 h 06 min	11:09 pm AST (03:09 UTC)
7,500 ft	270° at 12 kt	−11 kt	15 °C	131 kt	17 h 57 min	11:00 pm AST (03:00 UTC)
9,500 ft	270° at 11 kt	−10 kt	12 °C	130 kt	18 h 06 min	11:09 pm AST (03:09 UTC)
11,500 ft	260° at 10 kt	−9 kt	8 °C	129 kt	18 h 14 min	11:17 pm AST (03:17 UTC)
13,500 ft	260° at 11 kt	−9 kt	4 °C	129 kt	18 h 14 min	11:17 pm AST (03:17 UTC)
15,500 ft	260° at 13 kt	−11 kt	-1 °C	131 kt	17 h 57 min	11:00 pm AST (03:00 UTC)
17,500 ft	260° at 15 kt	−12 kt	-5 °C	132 kt	17 h 49 min	10:52 pm AST (02:52 UTC)
18,000 ft FL180	260° at 15 kt	−13 kt	-6 °C	133 kt	17 h 41 min	10:44 pm AST (02:44 UTC)
24,000 ft FL240	260° at 18 kt	−15 kt	-17 °C	135 kt	17 h 25 min	10:28 pm AST (02:28 UTC)
30,000 ft FL300	280° at 30 kt	−30 kt	-31 °C	150 kt	15 h 41 min	8:44 pm AST (00:44 UTC)
34,000 ft FL340	290° at 34 kt	−33 kt	-40 °C	153 kt	15 h 22 min	8:25 pm AST (00:25 UTC)
39,000 ft FL390	290° at 29 kt	−29 kt	-51 °C	149 kt	15 h 47 min	8:50 pm AST (00:50 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
PUB	used from 0 nm out; 26 nm from the line			260/45 11°	240/38 6°	230/47 -8°	230/51 -19°	240/74 -29°	240/82 -35°	250/72 -48°
GCK	used from 100 nm out; 72 nm from the line		240/40 22°	240/40 14°	240/38 7°	230/39 -7°	230/45 -20°	250/73 -28°	260/74 -36°	260/64 -49°
GAG	used from 249 nm out; 53 nm from the line		240/35 22°	240/27 14°	230/25 6°	240/38 -7°	230/44 -19°	250/73 -28°	270/66 -37°	270/58 -49°
ICT	used from 299 nm out; 69 nm from the line	230/45	240/33 21°	230/23 14°	230/22 7°	240/29 -7°	240/36 -20°	260/78 -29°	270/69 -36°	270/56 -49°
OKC	used from 349 nm out; 63 nm from the line	220/43	230/31 17°	260/13 16°	270/11 7°	240/20 -6°	250/32 -17°	260/60 -28°	280/50 -37°	290/45 -50°
TUL	used from 399 nm out; 30 nm from the line	230/42	250/23 17°	220/16 14°	240/10 8°	240/20 -6°	260/28 -17°	270/61 -29°	280/52 -38°	290/46 -50°
FSM	used from 498 nm out; 14 nm from the line	230/33	260/23 15°	240/23 11°	230/18 8°	230/20 -8°	250/31 -17°	280/51 -30°	280/52 -39°	300/47 -51°
LIT	used from 598 nm out; 31 nm from the line	250/22	250/25 18°	240/23 12°	240/20 7°	250/17 -6°	260/25 -17°	300/45 -29°	300/49 -40°	310/43 -51°
JAN	used from 748 nm out; 69 nm from the line	240/10	260/15 18°	280/10 11°	290/6 6°	290/15 -5°	300/15 -17°	320/35 -30°	330/38 -40°	330/39 -51°
MGM	used from 897 nm out; 62 nm from the line	320/19	330/16 17°	340/21 11°	330/11 5°	330/27 -6°	330/21 -17°	330/37 -32°	340/44 -40°	360/30 -52°
TLH	used from 1047 nm out; 51 nm from the line	340/23	350/26 17°	350/21 11°	300/13 6°	320/25 -6°	340/35 -16°	350/44 -32°	360/51 -42°	350/33 -52°
JAX	used from 1196 nm out; 72 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°
MLB	used from 1296 nm out; 43 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°
MIA	used from 1495 nm out; 141 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
COS Colorado Springs, CO	departure	VFR Sky: scattered clouds at 20,000 feet	from the south (180°) at 11 knots	10+ mi	none	6,187 ft	2:54 am MDT (08:54 UTC)
GCK Garden City, KS	189 nm out, 20 nm northeast of the line, tower	VFR	from the south-southwest (200°) at 21 knots, gusting to 30	10+ mi	none	2,890 ft	08:54 UTC
RVS Tulsa, OK	449 nm out, 8 nm north of the line, tower	VFR	from the south (170°) at 4 knots	10+ mi	none	638 ft	08:53 UTC
FSM Fort Smith, AR	538 nm out, 5 nm north of the line, tower	VFR	calm	10+ mi	none	469 ft	08:53 UTC
GWO Greenwood, MS	777 nm out, 5 nm north of the line, tower	VFR	calm	10+ mi	none	162 ft	08:53 UTC
TLH Tallahassee, FL	1126 nm out, 9 nm southwest of the line, tower	VFR	calm	10+ mi	none	83 ft	08:53 UTC
TIX Titusville, FL	1336 nm out, 4 nm south of the line, tower	VFR Sky: scattered clouds at 5,000 feet	calm	7 mi	none	34 ft	00:47 UTC
MYAM Marsh Harbour,	1575 nm out, 11 nm north of the line	no report just now				8 ft
ABO Arecibo, PR	2322 nm out, 24 nm southwest of the line	no report just now				20 ft
SJU San Juan, PR	destination	VFR Sky: a few clouds at 3,000 feet, scattered clouds at 3,800 feet	from the east (080°) at 4 knots	10+ mi	none	9 ft	4:56 am AST (08:56 UTC)

The highest airport on this list sits at 6,187 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, 8:25 pm AST (00:25 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 COS, the departure

From Mon 12:00 am MDT (06:00 UTC): wind from the south at 12 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 20,000 feet
From Mon 6:00 am MDT (12:00 UTC): wind from the north-northeast at 8 knots, visibility more than 6 miles, clear skies
From Mon 11:00 am MDT (17:00 UTC): wind from the south at 15 knots, gusting to 25, visibility more than 6 miles, scattered clouds at 12,000 feet
From Mon 1:00 pm MDT (19:00 UTC): wind from the south-southwest at 20 knots, gusting to 30, visibility more than 6 miles, scattered clouds at 12,000 feet
From Mon 7:00 pm MDT (01:00 UTC): wind from the south-southwest at 12 knots, visibility more than 6 miles, clear skies

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

6/8901 Cape Canaveral, FL, Thursday, October 15, 2026 Local on the route, 1346 nm along the route · a rocket launch or re-entry · starts Thursday 15 October · ZJX
6/8900 Cape Canaveral, FL, Wednesday, October 14, 2026 Local on the route, 1346 nm along the route · a rocket launch or re-entry · starts Wednesday 14 October · ZMA
6/8896 Cape Canaveral, FL, Tuesday, October 13, 2026 Local on the route, 1346 nm along the route · a rocket launch or re-entry · starts tomorrow · ZJX
6/8897 Cape Canaveral, FL, Wednesday, October 14, 2026 Local on the route, 1346 nm along the route · a rocket launch or re-entry · starts Wednesday 14 October · ZJX
6/8898 Cape Canaveral, FL, Thursday, October 15, 2026 Local on the route, 1346 nm along the route · a rocket launch or re-entry · starts Thursday 15 October · ZMA
6/8899 Cape Canaveral, FL, Tuesday, October 13, 2026 Local on the route, 1346 nm along the route · a rocket launch or re-entry · starts tomorrow · ZMA
6/4508 CEIBA, PR 24 nm from the route, at the destination end · security · ZSU

Daylight

Sunset at COS 6:23 pm MDT (00:23 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 after sunset there (6:03 pm AST (22:03 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 southern Rockies · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar now, the lower 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: City Of Colorado Springs Municipal, Luis Munoz Marin International.