Luis Munoz Marin International to Washington Dulles International SJU → IAD
1,368 nautical miles (1,575 statute miles) northwest on a straight line, true course 336°, about 347° magnetic at the departure end (variation 11W). At 120 knots that is 9 h 15 min at the quickest height in today's winds (34,000 ft, a 28-knot tailwind), arriving about 1:21 pm EDT (17:21 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: 1,415 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 1W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1039 to 1099 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft (due to mountain wave) from 30,000 ft to 41,000 ft. Over the route from 1209 to 1308 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, fog). Over the last 120 nm of the route.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the last 60 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Near the route, at the destination end.
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 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 5 forecast points nearest it (MIA, MLB, ILM, ORF, RIC). 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 | 250° at 11 kt | +1 kt | 119 kt | 11 h 30 min | 3:36 pm EDT (19:36 UTC) | |
| 6,500 ft | 250° at 13 kt | +1 kt | 13 °C | 119 kt | 11 h 30 min | 3:36 pm EDT (19:36 UTC) |
| 8,500 ft | 240° at 16 kt | 0 | 12 °C | 120 kt | 11 h 24 min | 3:30 pm EDT (19:30 UTC) |
| 10,500 ft | 240° at 18 kt | −2 kt | 10 °C | 122 kt | 11 h 13 min | 3:19 pm EDT (19:19 UTC) |
| 12,500 ft | 230° at 20 kt | −3 kt | 6 °C | 123 kt | 11 h 07 min | 3:13 pm EDT (19:13 UTC) |
| 14,500 ft | 230° at 23 kt | −3 kt | 2 °C | 123 kt | 11 h 07 min | 3:13 pm EDT (19:13 UTC) |
| 16,500 ft | 240° at 26 kt | −4 kt | -2 °C | 124 kt | 11 h 02 min | 3:08 pm EDT (19:08 UTC) |
| 18,000 ft FL180 | 240° at 29 kt | −4 kt | -5 °C | 124 kt | 11 h 02 min | 3:08 pm EDT (19:08 UTC) |
| 24,000 ft FL240 | 230° at 36 kt | −6 kt | -17 °C | 126 kt | 10 h 51 min | 2:57 pm EDT (18:57 UTC) |
| 30,000 ft FL300 | 220° at 43 kt | −18 kt | -31 °C | 138 kt | 9 h 55 min | 2:01 pm EDT (18:01 UTC) |
| 34,000 ft FL340 | 210° at 50 kt | −28 kt | -40 °C | 148 kt | 9 h 15 min | 1:21 pm EDT (17:21 UTC) |
| 39,000 ft FL390 | 220° at 48 kt | −21 kt | -51 °C | 141 kt | 9 h 42 min | 1:48 pm EDT (17:48 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; 888 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 599 nm out; 528 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 649 nm out; 485 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° |
| ORF | used from 1049 nm out; 158 nm from the line | 250/24 | 230/32 11° | 220/37 10° | 220/37 6° | 230/47 -5° | 230/62 -17° | 220/89 -30° | 220/93 -40° | 230/77 -51° |
| RIC | used from 1249 nm out; 40 nm from the line | 270/23 | 280/19 11° | 270/18 8° | 240/22 4° | 230/39 -7° | 220/55 -18° | 220/75 -30° | 230/83 -39° | 230/64 -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 | no report just now | 9 ft | ||||
| ORF Norfolk, VA | 1229 nm out, 7 nm west of the line, tower | no report just now | 26 ft | ||||
| PHF Newport News, VA | 1249 nm out, 13 nm west of the line, tower | no report just now | 42 ft | ||||
| IAD Washington, DC | destination | no report just now | 312 ft |
The highest airport on this list sits at 312 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At IAD when you get there the forecast at the estimated arrival, 1:21 pm EDT (17:21 UTC)
IAD 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
- 4/9383 WASHINGTON, DC., USA 2 nm from the route, at the destination end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the destination end · a VIP movement · today · ZDC
Daylight
Sunset at SJU 6:03 pm AST (22:03 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 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, Washington Dulles International.