Denver International to Luis Munoz Marin International DEN → SJU
2,374 nautical miles (2,731 statute miles) east on a straight line, true course 111°, about 103° magnetic at the departure end (variation 8E). At 120 knots that is 15 h 25 min at the quickest height in today's winds (34,000 ft, a 34-knot tailwind), arriving about 1:28 am AST (05:28 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: 657 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 100 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 0 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 279 to 449 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 DEN.
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 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 15 forecast points nearest it (DEN, GLD, GCK, ICT, TUL, FSM, LIT, MEM, BHM, MGM, CSG, 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 11 kt | −9 kt | 129 kt | 18 h 24 min | 4:27 am AST (08:27 UTC) | |
| 5,500 ft | 270° at 13 kt | −11 kt | 22 °C | 131 kt | 18 h 07 min | 4:10 am AST (08:10 UTC) |
| 7,500 ft | 270° at 12 kt | −11 kt | 15 °C | 131 kt | 18 h 07 min | 4:10 am AST (08:10 UTC) |
| 9,500 ft | 270° at 11 kt | −10 kt | 12 °C | 130 kt | 18 h 16 min | 4:19 am AST (08:19 UTC) |
| 11,500 ft | 270° at 10 kt | −9 kt | 8 °C | 129 kt | 18 h 24 min | 4:27 am AST (08:27 UTC) |
| 13,500 ft | 260° at 11 kt | −10 kt | 4 °C | 130 kt | 18 h 16 min | 4:19 am AST (08:19 UTC) |
| 15,500 ft | 260° at 13 kt | −11 kt | -1 °C | 131 kt | 18 h 07 min | 4:10 am AST (08:10 UTC) |
| 17,500 ft | 260° at 15 kt | −12 kt | -5 °C | 132 kt | 17 h 59 min | 4:02 am AST (08:02 UTC) |
| 18,000 ft FL180 | 260° at 15 kt | −12 kt | -6 °C | 132 kt | 17 h 59 min | 4:02 am AST (08:02 UTC) |
| 24,000 ft FL240 | 260° at 18 kt | −15 kt | -18 °C | 135 kt | 17 h 35 min | 3:38 am AST (07:38 UTC) |
| 30,000 ft FL300 | 280° at 31 kt | −29 kt | -31 °C | 149 kt | 15 h 56 min | 1:59 am AST (05:59 UTC) |
| 34,000 ft FL340 | 280° at 36 kt | −34 kt | -40 °C | 154 kt | 15 h 25 min | 1:28 am AST (05:28 UTC) |
| 39,000 ft FL390 | 280° at 29 kt | −29 kt | -51 °C | 149 kt | 15 h 56 min | 1:59 am AST (05:59 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| DEN | used from 0 nm out; 25 nm from the line | 270/24 11° | 230/13 5° | 230/48 -8° | 230/46 -20° | 230/63 -30° | 240/78 -36° | 240/78 -48° | ||
| GLD | used from 50 nm out; 68 nm from the line | 260/37 | 260/25 14° | 250/27 8° | 230/36 -8° | 230/49 -21° | 250/71 -30° | 260/82 -36° | 250/73 -48° | |
| GCK | used from 199 nm out; 37 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° | |
| ICT | used from 299 nm out; 42 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° |
| TUL | used from 399 nm out; 54 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 499 nm out; 55 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; 51 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° |
| MEM | used from 698 nm out; 56 nm from the line | 250/19 | 260/19 17° | 270/20 12° | 270/16 6° | 270/21 -6° | 290/27 -17° | 300/37 -30° | 300/49 -40° | 310/40 -51° |
| BHM | used from 848 nm out; 84 nm from the line | 310/19 | 310/15 16° | 320/19 11° | 330/15 5° | 330/23 -5° | 320/14 -18° | 320/36 -32° | 330/44 -40° | 340/36 -51° |
| MGM | used from 947 nm out; 21 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° |
| CSG | used from 1047 nm out; 54 nm from the line | 330/27 | 340/28 16° | 350/28 11° | 330/17 6° | 340/25 -6° | 350/33 -18° | 330/46 -32° | 340/45 -41° | 350/31 -52° |
| TLH | used from 1097 nm out; 46 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 1197 nm out; 53 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; 76 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 1546 nm out; 175 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 |
|---|---|---|---|---|---|---|---|
| DEN Denver, CO | departure | no report just now | 5,433 ft | ||||
| ITR Burlington, CO | 120 nm out, 8 nm north of the line | no report just now | 4,218 ft | ||||
| ICT Wichita, KS | 359 nm out, 15 nm northeast of the line, tower | no report just now | 1,332 ft | ||||
| FYV Fayetteville, AR | 549 nm out, 3 nm southwest of the line, tower | no report just now | 1,252 ft | ||||
| GTR Columbus/W Point/Starkville, MS | 868 nm out, 5 nm west of the line, tower | no report just now | 264 ft | ||||
| MGM Montgomery, AL | 997 nm out, 4 nm west of the line, tower | no report just now | 221 ft | ||||
| LCQ Lake City, FL | 1227 nm out, 1 nm south of the line, tower | no report just now | 200 ft | ||||
| MYAT Treasure Cay, | 1566 nm out, 11 nm south of the line | no report just now | 10 ft | ||||
| ABO Arecibo, PR | 2344 nm out, 25 nm southwest of the line | no report just now | 20 ft | ||||
| SJU San Juan, PR | destination | no report just now | 9 ft |
The highest airport on this list sits at 5,433 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, 1:28 am AST (05:28 UTC)
SJU has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8389 Jacksonville, FL, Thursday, October 15, 2026 through Sunday, October 18, 2026 UTC 23 nm from the route, 1267 nm along the route · air shows/sports · starts Thursday 15 October · ZJX
- 6/8298 Daytona Beach, FL, Wednesday, October 14, 2026 through Sunday, October 18, 2026 UTC 1 nm from the route, 1326 nm along the route · drones kept away from a public gathering · starts Wednesday 14 October · ZJX
- 6/8901 Cape Canaveral, FL, Thursday, October 15, 2026 Local on the route, 1356 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, 1356 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, 1356 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, 1356 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, 1356 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, 1356 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 DEN 6:22 pm MDT (00:22 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
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: Denver International, Luis Munoz Marin International.