Ronald Reagan Washington Ntl Airport to Washington Dulles International DCA → IAD
21 nautical miles (24 statute miles) west on a straight line, true course 286°, about 297° magnetic at the departure end (variation 11W). At 120 knots that is 12 min at the quickest height in today's winds (4,500 ft, a 16-knot headwind), arriving about 7:22 am EDT (11:22 UTC). Right now DCA is marginal VFR, wind from the north-northwest (340°) at 11 knots; IAD is VFR, wind from the north-northwest (330°) at 10 knots. 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: 115 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 whole route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Near the route, at the departure end.
- AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Near the route, 14 nm along the route.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the last 0 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 DCA.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B737 at 700 ft, 26 nm northeast, 5:33 am EDT (09:33 UTC): remarks: light rain. At the departure end, 26 nm northeast of the line.
as filed, and in English
BWI UA /OV BWI/TM 0933/FL007/TP B737/RM LIGHT RAIN
- Report
- a routine report filed through BWI
- Where
- over BWI
- Time
- 09:33 UTC
- Height
- at 700 ft
- Aircraft
- B737
- Remarks
- light rain
- B39M descending, 0 nm northeast, 6:42 am EDT (10:42 UTC): overcast above 4,000 ft. At the destination end, 0 nm northeast of the line.
as filed, and in English
IAD UA /OV RWY 1R/TM 1042/FLDURD/TP B39M/SK OVC 040/WX 10 SM
- Report
- a routine report filed through IAD
- Where
- runway 1R
- Time
- 10:42 UTC
- Height
- during the descent
- Aircraft
- B39M
- Sky
- overcast from 4,000 ft
- Weather
- 10, miles
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 1 forecast point nearest it (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 | 350° at 30 kt | +16 kt | 104 kt | 12 min | 7:22 am EDT (11:22 UTC) | |
| 6,500 ft | 340° at 28 kt | +17 kt | 11 °C | 103 kt | 12 min | 7:22 am EDT (11:22 UTC) |
| 8,500 ft | 340° at 34 kt | +20 kt | 9 °C | 100 kt | 13 min | 7:23 am EDT (11:23 UTC) |
| 10,500 ft | 340° at 33 kt | +22 kt | 6 °C | 98 kt | 13 min | 7:23 am EDT (11:23 UTC) |
| 12,500 ft | 330° at 31 kt | +23 kt | 2 °C | 97 kt | 13 min | 7:23 am EDT (11:23 UTC) |
| 14,500 ft | 320° at 31 kt | +25 kt | -2 °C | 95 kt | 13 min | 7:23 am EDT (11:23 UTC) |
| 16,500 ft | 310° at 31 kt | +28 kt | -6 °C | 92 kt | 14 min | 7:24 am EDT (11:24 UTC) |
| 18,000 ft FL180 | 310° at 32 kt | +29 kt | -9 °C | 91 kt | 14 min | 7:24 am EDT (11:24 UTC) |
| 24,000 ft FL240 | 320° at 34 kt | +28 kt | -21 °C | 92 kt | 14 min | 7:24 am EDT (11:24 UTC) |
| 30,000 ft FL300 | 300° at 37 kt | +36 kt | -34 °C | 84 kt | 15 min | 7:25 am EDT (11:25 UTC) |
| 34,000 ft FL340 | 290° at 37 kt | +37 kt | -39 °C | 83 kt | 15 min | 7:25 am EDT (11:25 UTC) |
| 39,000 ft FL390 | 290° at 42 kt | +42 kt | -46 °C | 78 kt | 16 min | 7:26 am EDT (11:26 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| RIC | used from 0 nm out; 84 nm from the line | 350/34 | 340/27 12° | 340/36 8° | 330/31 3° | 310/32 -9° | 320/34 -21° | 300/37 -34° | 290/37 -39° | 290/42 -46° |
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 |
|---|---|---|---|---|---|---|---|
| DCA Washington, DC | departure | marginal VFR Sky: a broken layer at 1,100 feet, overcast at 3,000 feet | from the north-northwest (340°) at 11 knots | 10+ mi | 1,100 ft | 14 ft | 6:52 am EDT (10:52 UTC) |
| IAD Washington, DC | destination | VFR Sky: a few clouds at 1,800 feet, a broken layer at 4,400 feet Weather: mist | from the north-northwest (330°) at 10 knots | 6 mi | 4,400 ft | 312 ft | 6:52 am EDT (10:52 UTC) |
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, 7:22 am EDT (11:22 UTC)
Wind from the north-northwest at 11 knots, visibility 6 miles, mist, a broken layer at 1,000 feet, a broken layer at 1,500 feet and more above marginal VFR
The whole forecast for IAD
- From Mon 5:00 am EDT (09:00 UTC): wind from the north-northwest at 11 knots, visibility 6 miles, mist, a broken layer at 1,000 feet, a broken layer at 1,500 feet and more above
- From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, overcast at 1,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the north-northwest at 13 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 11 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 3,500 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, a broken layer at 3,500 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 3 knots, visibility more than 6 miles, scattered clouds at 4,000 feet
The forecast for DCA, the departure
- From Mon 6:00 am EDT (10:00 UTC): wind from the north-northwest at 9 knots, visibility more than 6 miles, a few clouds at 1,000 feet, a broken layer at 1,600 feet and more above
- From Mon 9:00 am EDT (13:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 1,500 feet, overcast at 2,500 feet
- From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 13 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 1,500 feet, a broken layer at 2,500 feet
- From Mon 3:00 pm EDT (19:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 3,500 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, a broken layer at 3,500 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA on the route, at the departure end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, 14 nm along the route · a VIP movement · today · ZDC
Daylight
Sunset at DCA 6:34 pm EDT (22:34 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: Ronald Reagan Washington Ntl Airport, Washington Dulles International.