Luis Munoz Marin International to City Of Colorado Springs Municipal SJU → COS
2,352 nautical miles (2,707 statute miles) northwest on a straight line, true course 310°, about 321° magnetic at the departure end (variation 11W). At 120 knots that is 21 h at the quickest height in today's winds (12,500 ft, a 8-knot headwind), arriving about 3:19 am MDT (09:19 UTC), after sunset at the destination. 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
- SIGMET E37E: thunderstorms (a convective SIGMET) up to 38,000 ft, moving from the west at 20 knots, until 9:55 am AST (13:55 UTC). Over the route from 887 to 947 nm out.
as issued
WSUS31 KKCI 121155 MKCE WST 121155 CONVECTIVE SIGMET 37E VALID UNTIL 1355Z FL CSTL WTRS FROM 220SE CHS-220ENE TRV-50ENE PBI-40ENE TRV-220SE CHS AREA TS MOV FROM 26020KT. TOPS TO FL380.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 30,000 ft to 41,000 ft. Over the route from 1057 to 1226 nm out.
- AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Over the route from 1356 to 1565 nm out.
- 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 1824 to 2163 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the last 60 nm of the route.
- AIRMET TANGO 1W: 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 last 30 nm of the route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the last 10 nm of 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 SJU.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 14 forecast points nearest it (MIA, MLB, JAX, TLH, MGM, JAN, LIT, FSM, TUL, OKC, ICT, GAG, GCK, PUB). 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 | 260° at 12 kt | +10 kt | 22 °C | 110 kt | 21 h 23 min | 3:42 am MDT (09:42 UTC) |
| 6,500 ft | 260° at 11 kt | +10 kt | 17 °C | 110 kt | 21 h 23 min | 3:42 am MDT (09:42 UTC) |
| 8,500 ft | 270° at 11 kt | +10 kt | 13 °C | 110 kt | 21 h 23 min | 3:42 am MDT (09:42 UTC) |
| 10,500 ft | 260° at 11 kt | +9 kt | 10 °C | 111 kt | 21 h 11 min | 3:30 am MDT (09:30 UTC) |
| 12,500 ft | 260° at 11 kt | +8 kt | 6 °C | 112 kt | 21 h | 3:19 am MDT (09:19 UTC) |
| 14,500 ft | 260° at 12 kt | +10 kt | 2 °C | 110 kt | 21 h 23 min | 3:42 am MDT (09:42 UTC) |
| 16,500 ft | 260° at 14 kt | +11 kt | -3 °C | 109 kt | 21 h 35 min | 3:54 am MDT (09:54 UTC) |
| 18,000 ft FL180 | 260° at 15 kt | +12 kt | -6 °C | 108 kt | 21 h 47 min | 4:06 am MDT (10:06 UTC) |
| 24,000 ft FL240 | 260° at 18 kt | +14 kt | -17 °C | 106 kt | 22 h 11 min | 4:30 am MDT (10:30 UTC) |
| 30,000 ft FL300 | 280° at 30 kt | +29 kt | -31 °C | 91 kt | 25 h 51 min | 8:10 am MDT (14:10 UTC) |
| 34,000 ft FL340 | 280° at 34 kt | +33 kt | -40 °C | 87 kt | 27 h 02 min | 9:21 am MDT (15:21 UTC) |
| 39,000 ft FL390 | 290° at 29 kt | +29 kt | -51 °C | 91 kt | 25 h 51 min | 8:10 am MDT (14:10 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 847 nm out; 122 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 1096 nm out; 71 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° |
| TLH | used from 1146 nm out; 60 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° |
| MGM | used from 1296 nm out; 68 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° |
| JAN | used from 1445 nm out; 92 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° |
| LIT | used from 1595 nm out; 88 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° |
| FSM | used from 1744 nm out; 47 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° |
| TUL | used from 1844 nm out; 41 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° |
| OKC | used from 1944 nm out; 61 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° |
| ICT | used from 1993 nm out; 67 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° |
| GAG | used from 2043 nm out; 54 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° | |
| GCK | used from 2093 nm out; 45 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° | |
| PUB | used from 2243 nm out; 70 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° |
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 | no report just now | 9 ft | ||||
| ABO Arecibo, PR | 30 nm out, 24 nm southwest of the line | no report just now | 20 ft | ||||
| MYAM Marsh Harbour, | 777 nm out, 11 nm north of the line | no report just now | 8 ft | ||||
| TIX Titusville, FL | 1017 nm out, 4 nm south of the line, tower | no report just now | 34 ft | ||||
| TLH Tallahassee, FL | 1226 nm out, 9 nm southwest of the line, tower | no report just now | 83 ft | ||||
| GWO Greenwood, MS | 1575 nm out, 5 nm north of the line, tower | no report just now | 162 ft | ||||
| FSM Fort Smith, AR | 1814 nm out, 5 nm north of the line, tower | no report just now | 469 ft | ||||
| RVS Tulsa, OK | 1904 nm out, 8 nm north of the line, tower | no report just now | 638 ft | ||||
| GCK Garden City, KS | 2163 nm out, 20 nm northeast of the line, tower | no report just now | 2,890 ft | ||||
| COS Colorado Springs, CO | destination | no report just now | 6,187 ft |
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 COS when you get there the forecast at the estimated arrival, 3:19 am MDT (09:19 UTC)
COS has no terminal forecast; use the nearest airport that does.
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
- 6/8901 Cape Canaveral, FL, Thursday, October 15, 2026 Local on the route, 987 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, 987 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, 987 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, 987 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, 987 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, 987 nm along the route · a rocket launch or re-entry · starts tomorrow · ZMA
Daylight
Sunset at SJU 6:03 pm AST (22:03 UTC), at COS 6:23 pm MDT (00:23 UTC) (civil twilight ends 6:50 pm MDT (00:50 UTC)). At 120 knots the arrival at COS is before sunrise there (7:05 am MDT (13:05 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
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, City Of Colorado Springs Municipal.