Luis Munoz Marin International to South Bend International SJU → SBN
1,741 nautical miles (2,004 statute miles) northwest on a straight line, true course 328°, about 339° magnetic at the departure end (variation 11W). At 120 knots that is 14 h 16 min at the quickest height in today's winds (34,000 ft, a 2-knot tailwind), arriving about 1:56 pm EDT (17:56 UTC). Right now SJU is VFR, wind from the south-southeast (150°) at 4 knots; SBN is low IFR, wind calm. 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 9E: thunderstorms (a convective SIGMET) up to 45,000 ft, moving from the southwest at 25 knots, until 12:55 am AST (04:55 UTC). Over the route from 995 to 1015 nm out.
as issued
WSUS31 KKCI 120255 MKCE WST 120255 CONVECTIVE SIGMET 9E VALID UNTIL 0455Z NC CSTL WTRS FROM 50E ECG-200E ECG-220SE ILM-140SSE ILM-50E ECG AREA TS MOV FROM 24025KT. TOPS TO FL450. REF INTL SIGMET LIMA SERIES.
- SIGMET E12E: thunderstorms (a convective SIGMET) up to 45,000 ft, moving from the west at 20 knots, until 12:55 am AST (04:55 UTC). Near the route, 995 nm along the route.
as issued
WSUS31 KKCI 120255 MKCE WST 120255 CONVECTIVE SIGMET 12E VALID UNTIL 0455Z FL GA CSTL WTRS FROM 160SSE ILM-240SSE ILM-100ENE PBI-50NE TRV-160SSE ILM AREA TS MOV FROM 26020KT. TOPS ABV FL450. REF INTL SIGMET LIMA SERIES.
- AIRMET TANGO 1W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1025 to 1035 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the route from 1284 to 1393 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1343 to 1473 nm out.
- 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 last 378 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
- A320 at 34,000 ft, 27 nm northeast, 10:03 pm AST (02:03 UTC): moderate chop turbulence. 1642 nm along the route, 27 nm northeast of the line.
as filed, and in English
FWA UA /OV FWA115040/TM 0203/FL340/TP A320/TB MOD CHOP
- Report
- a routine report filed through FWA
- Where
- 40 nm southeast (115°) of FWA
- Time
- 02:03 UTC
- Height
- at 34,000 ft
- Aircraft
- A320
- Turbulence
- moderate chop
- UAL1543 at 33,000 ft, 43 nm southwest, 10:46 pm AST (02:46 UTC): -37 °C, wind 181° at 14 knots. 736 nm along the route, 43 nm southwest of the line.
as filed, and in English
ARP UAL1543 2815N 7407W 0246 F330 MS37 181/014KT
- Report
- a routine report filed through ARP
- B737 at 34,000 ft, 26 nm southwest, 9:08 pm AST (01:08 UTC): light chop turbulence. 1085 nm along the route, 26 nm southwest of the line.
as filed, and in English
ILM UA /OV ILM187076/TM 0108/FL340/TP B737/TB INTMT LGT CHOP
- Report
- a routine report filed through ILM
- Where
- 76 nm south (187°) of ILM
- Time
- 01:08 UTC
- Height
- at 34,000 ft
- Aircraft
- B737
- Turbulence
- intermittent light chop
- BCS3 climbing, 48 nm northeast, 10:27 pm AST (02:27 UTC): a routine report with nothing remarked on. 1562 nm along the route, 48 nm northeast of the line.
as filed, and in English
CMH UA /OV CMH/TM 0227/FLDURC/TP BCS3/SK B010
- Report
- a routine report filed through CMH
- Where
- over CMH
- Time
- 02:27 UTC
- Height
- during the climb
- Aircraft
- BCS3
- Sky
- B010
- CRJ9 descending, 5 nm northwest, 9:15 pm AST (01:15 UTC): a routine report with nothing remarked on. 1592 nm along the route, 5 nm northwest of the line.
as filed, and in English
DAY UA /OV DAY/TM 0115/FLDURD/TP CRJ9/SK T031 B005
- Report
- a routine report filed through DAY
- Where
- over DAY
- Time
- 01:15 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- T031 B005
Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 8 forecast points nearest it (MIA, MLB, ILM, RDU, ROA, CRW, CMH, FWA). 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 | 290° at 10 kt | +8 kt | 112 kt | 15 h 33 min | 3:13 pm EDT (19:13 UTC) | |
| 6,500 ft | 290° at 10 kt | +8 kt | 14 °C | 112 kt | 15 h 33 min | 3:13 pm EDT (19:13 UTC) |
| 8,500 ft | 280° at 12 kt | +9 kt | 11 °C | 111 kt | 15 h 41 min | 3:21 pm EDT (19:21 UTC) |
| 10,500 ft | 280° at 12 kt | +8 kt | 9 °C | 112 kt | 15 h 33 min | 3:13 pm EDT (19:13 UTC) |
| 12,500 ft | 270° at 13 kt | +8 kt | 5 °C | 112 kt | 15 h 33 min | 3:13 pm EDT (19:13 UTC) |
| 14,500 ft | 270° at 16 kt | +9 kt | 1 °C | 111 kt | 15 h 41 min | 3:21 pm EDT (19:21 UTC) |
| 16,500 ft | 260° at 18 kt | +9 kt | -3 °C | 111 kt | 15 h 41 min | 3:21 pm EDT (19:21 UTC) |
| 18,000 ft FL180 | 260° at 20 kt | +10 kt | -6 °C | 110 kt | 15 h 50 min | 3:30 pm EDT (19:30 UTC) |
| 24,000 ft FL240 | 260° at 24 kt | +12 kt | -18 °C | 108 kt | 16 h 07 min | 3:47 pm EDT (19:47 UTC) |
| 30,000 ft FL300 | 250° at 23 kt | +5 kt | -32 °C | 115 kt | 15 h 08 min | 2:48 pm EDT (18:48 UTC) |
| 34,000 ft FL340 | 230° at 26 kt | −2 kt | -41 °C | 122 kt | 14 h 16 min | 1:56 pm EDT (17:56 UTC) |
| 39,000 ft FL390 | 230° at 28 kt | 0 | -50 °C | 120 kt | 14 h 30 min | 2:10 pm EDT (18:10 UTC) |
Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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; 886 nm from the line | 150/7 | 140/5 17° | 160/5 14° | L/V 9° | 230/8 -5° | 230/8 -17° | 150/11 -32° | 150/25 -41° | 180/29 -51° |
| MLB | used from 647 nm out; 420 nm from the line | 230/6 | 230/12 17° | 240/13 12° | 240/14 7° | 240/20 -5° | 240/24 -16° | 210/21 -32° | 190/33 -41° | 200/36 -52° |
| ILM | used from 796 nm out; 323 nm from the line | 270/22 | 270/23 11° | 260/35 10° | 240/41 6° | 240/49 -5° | 240/61 -16° | 230/74 -30° | 220/79 -40° | 230/71 -51° |
| RDU | used from 1194 nm out; 50 nm from the line | 280/33 | 300/23 11° | 300/28 8° | 290/28 4° | 260/41 -6° | 240/52 -18° | 230/66 -31° | 230/76 -39° | 240/52 -49° |
| ROA | used from 1294 nm out; 60 nm from the line | 310/29 | 330/31 13° | 340/28 7° | 330/25 3° | 310/32 -8° | 300/32 -22° | 290/32 -31° | 270/35 -38° | 270/32 -47° |
| CRW | used from 1393 nm out; 43 nm from the line | 330/20 | 330/23 11° | 340/25 8° | 340/21 2° | 340/33 -9° | 340/41 -20° | 330/42 -35° | 320/44 -39° | 320/43 -47° |
| CMH | used from 1493 nm out; 65 nm from the line | 330/15 | 340/22 14° | 340/24 9° | 340/23 4° | 340/35 -9° | 340/49 -20° | 340/58 -37° | 330/70 -42° | 340/55 -47° |
| FWA | used from 1592 nm out; 58 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
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 2,700 feet, scattered clouds at 4,300 feet, scattered clouds at 6,000 feet | from the south-southeast (150°) at 4 knots | 10+ mi | none | 9 ft | 10:56 pm AST (02:56 UTC) |
| FAY Fayetteville, NC | 1204 nm out, 6 nm north of the line, tower | VFR Sky: a few clouds at 7,000 feet | from the southwest (220°) at 12 knots | 10+ mi | none | 189 ft | 02:53 UTC |
| INT Winston Salem, NC | 1303 nm out, 4 nm southwest of the line, tower | VFR Sky: a broken layer at 4,300 feet, overcast at 7,000 feet | from the southwest (230°) at 5 knots | 10+ mi | 4,300 ft | 969 ft | 02:54 UTC |
| HTS Huntington, WV | 1473 nm out, 6 nm west of the line, tower | IFR Sky: a broken layer at 700 feet, overcast at 1,400 feet Weather: mist | from the west (280°) at 5 knots | 2.5 mi | 700 ft | 828 ft | 02:51 UTC |
| DAY Dayton, OH | 1592 nm out, 5 nm northwest of the line, tower | marginal VFR Sky: overcast at 1,200 feet | from the west-northwest (290°) at 7 knots | 8 mi | 1,200 ft | 1,009 ft | 02:56 UTC |
| SBN South Bend, IN | destination | low IFR Weather: fog | calm | 0.25 mi | none | 798 ft | 11:27 pm EDT (03:27 UTC) |
The highest airport on this list sits at 1,009 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SBN when you get there the forecast at the estimated arrival, 1:56 pm EDT (17:56 UTC)
Wind from the south-southwest at 10 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for SBN
- From Mon 12:00 am EDT (04:00 UTC): wind light and variable, visibility 2 miles, mist, clear skies
- At times between Mon 12:00 am EDT (04:00 UTC) and 3:00 am EDT (07:00 UTC): visibility ½ mile, fog
- From Mon 6:00 am EDT (10:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, clear skies
- From Mon 4:00 pm EDT (20:00 UTC): wind from the south-southwest at 11 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for SJU, the departure
- From Sun 10:00 pm AST (02:00 UTC): wind from the east-southeast at 6 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,500 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, 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 at 5 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
- 6/8508 Johnsontown, NC 5 nm from the route, 1184 nm along the route · security · ZDC
- 6/8713 Maxton, NC, Friday, October 16, 2026 through Sunday, October 18, 2026 UTC 16 nm from the route, 1214 nm along the route · air shows/sports · starts Friday 16 October · ZDC
Daylight
Sunset at SJU 6:03 pm AST (22:03 UTC), at SBN 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 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, South Bend International.