Chicago Midway International to Luis Munoz Marin International MDW → SJU
1,789 nautical miles (2,059 statute miles) southeast on a straight line, true course 135°, about 139° magnetic at the departure end (variation 4W). At 120 knots that is 14 h 05 min at the quickest height in today's winds (11,500 ft, a 7-knot tailwind), arriving about 11:13 am AST (15:13 UTC). 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: 103 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 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 240 to 400 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 320 to 450 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 7,000 ft. Over the route from 390 to 490 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 MDW.
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 20:00–03:00 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 10 forecast points nearest it (JOT, FWA, IND, CVG, CRW, TRI, FLO, ILM, 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 | 240° at 10 kt | −1 kt | 121 kt | 14 h 47 min | 11:55 am AST (15:55 UTC) | |
| 5,500 ft | 270° at 10 kt | −5 kt | 11 °C | 125 kt | 14 h 19 min | 11:27 am AST (15:27 UTC) |
| 7,500 ft | 260° at 11 kt | −6 kt | 14 °C | 126 kt | 14 h 12 min | 11:20 am AST (15:20 UTC) |
| 9,500 ft | 260° at 13 kt | −6 kt | 11 °C | 126 kt | 14 h 12 min | 11:20 am AST (15:20 UTC) |
| 11,500 ft | 270° at 13 kt | −7 kt | 8 °C | 127 kt | 14 h 05 min | 11:13 am AST (15:13 UTC) |
| 13,500 ft | 260° at 14 kt | −7 kt | 4 °C | 127 kt | 14 h 05 min | 11:13 am AST (15:13 UTC) |
| 15,500 ft | 260° at 16 kt | −7 kt | -1 °C | 127 kt | 14 h 05 min | 11:13 am AST (15:13 UTC) |
| 17,500 ft | 250° at 19 kt | −6 kt | -5 °C | 126 kt | 14 h 12 min | 11:20 am AST (15:20 UTC) |
| 18,000 ft FL180 | 250° at 19 kt | −6 kt | -6 °C | 126 kt | 14 h 12 min | 11:20 am AST (15:20 UTC) |
| 24,000 ft FL240 | 240° at 19 kt | −4 kt | -17 °C | 124 kt | 14 h 26 min | 11:34 am AST (15:34 UTC) |
| 30,000 ft FL300 | 230° at 22 kt | +1 kt | -31 °C | 119 kt | 15 h 02 min | 12:10 pm AST (16:10 UTC) |
| 34,000 ft FL340 | 210° at 27 kt | +10 kt | -40 °C | 110 kt | 16 h 16 min | 1:24 pm AST (17:24 UTC) |
| 39,000 ft FL390 | 220° at 24 kt | +6 kt | -51 °C | 114 kt | 15 h 42 min | 12:50 pm AST (16:50 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JOT | used from 0 nm out; 37 nm from the line | 230/11 | 290/12 16° | 300/19 10° | 320/19 4° | 300/17 -9° | 330/31 -20° | 320/49 -37° | 320/53 -45° | 320/67 -49° |
| FWA | used from 50 nm out; 63 nm from the line | 350/9 | 350/24 15° | 360/25 9° | 360/29 4° | 350/31 -10° | 340/39 -22° | 330/40 -37° | 320/38 -43° | 320/48 -48° |
| IND | used from 100 nm out; 41 nm from the line | 320/10 | 350/30 16° | 350/32 10° | 350/30 4° | 340/31 -10° | 340/42 -21° | 340/49 -37° | 320/46 -41° | 320/47 -47° |
| CVG | used from 150 nm out; 43 nm from the line | 350/13 | 340/20 13° | 340/22 8° | 350/30 3° | 340/30 -9° | 340/38 -21° | 330/37 -35° | 320/38 -40° | 310/35 -47° |
| CRW | used from 300 nm out; 70 nm from the line | 320/16 | 310/16 12° | 320/12 7° | 320/12 2° | 330/15 -11° | 280/11 -22° | 230/26 -30° | 240/33 -37° | 240/37 -47° |
| TRI | used from 350 nm out; 47 nm from the line | 310/28 11° | 320/32 7° | 330/30 2° | 300/28 -9° | 280/34 -21° | 250/37 -31° | 240/39 -38° | 250/35 -48° | |
| FLO | used from 500 nm out; 73 nm from the line | 240/25 | 270/23 11° | 250/36 10° | 240/38 7° | 240/50 -4° | 230/66 -15° | 220/75 -30° | 210/77 -40° | 220/73 -52° |
| ILM | used from 650 nm out; 54 nm from the line | 230/27 | 220/35 14° | 230/45 13° | 230/48 8° | 240/59 -4° | 230/57 -14° | 220/66 -30° | 210/66 -40° | 210/59 -52° |
| MLB | used from 950 nm out; 328 nm from the line | 240/7 | 240/11 17° | 240/13 13° | 250/15 8° | 230/25 -5° | 210/25 -16° | 210/24 -31° | 190/29 -41° | 190/27 -53° |
| MIA | used from 1100 nm out; 409 nm from the line | 190/8 | L/V 18° | 180/5 14° | L/V 9° | 190/10 -5° | 160/10 -16° | 150/13 -30° | 160/26 -40° | 150/23 -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 |
|---|---|---|---|---|---|---|---|
| MDW Chicago, IL | departure | no report just now | 619 ft | ||||
| AID Anderson, IN | 140 nm out, 1 nm southwest of the line, tower | no report just now | 919 ft | ||||
| LUK Cincinnati, OH | 220 nm out, 3 nm south of the line, tower | no report just now | 481 ft | ||||
| VUJ Albemarle, NC | 520 nm out, 5 nm east of the line, tower | no report just now | 609 ft | ||||
| CRE North Myrtle Beach, SC | 640 nm out, 4 nm southwest of the line, tower | no report just now | 31 ft | ||||
| SJU San Juan, PR | destination | no report just now | 9 ft |
The highest airport on this list sits at 919 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, 11:13 am AST (15:13 UTC)
SJU has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local 8 nm from the route, 220 nm along the route · a VIP movement · until 12 October · ZID
- 6/8713 Maxton, NC, Friday, October 16, 2026 through Sunday, October 18, 2026 UTC 5 nm from the route, 580 nm along the route · air shows/sports · starts Friday 16 October · ZDC
- 6/4508 CEIBA, PR 24 nm from the route, at the destination end · security · ZSU
Daylight
Sunset at MDW 6:14 pm CDT (23:14 UTC), at SJU 6:03 pm AST (22:03 UTC) (civil twilight ends 6:25 pm AST (22:25 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: Chicago Midway International, Luis Munoz Marin International.