Ronald Reagan Washington Ntl Airport to Purdue University Airport DCA → LAF
467 nautical miles (537 statute miles) west on a straight line, true course 285°, about 296° magnetic at the departure end (variation 11W). At 120 knots that is 4 h 17 min at the quickest height in today's winds (12,500 ft, a 11-knot headwind), arriving about 6:33 am EDT (10:33 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: 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
- 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 21,000 ft to 33,000 ft. Over the first 89 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 50 to 199 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 DCA.
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 (RIC, EKN, CMH, FWA, IND). 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 | 320° at 18 kt | +14 kt | 12 °C | 106 kt | 4 h 24 min | 6:40 am EDT (10:40 UTC) |
| 6,500 ft | 330° at 20 kt | +15 kt | 13 °C | 105 kt | 4 h 27 min | 6:43 am EDT (10:43 UTC) |
| 8,500 ft | 330° at 21 kt | +15 kt | 9 °C | 105 kt | 4 h 27 min | 6:43 am EDT (10:43 UTC) |
| 10,500 ft | 330° at 20 kt | +13 kt | 5 °C | 107 kt | 4 h 22 min | 6:38 am EDT (10:38 UTC) |
| 12,500 ft | 330° at 18 kt | +11 kt | 2 °C | 109 kt | 4 h 17 min | 6:33 am EDT (10:33 UTC) |
| 14,500 ft | 330° at 20 kt | +14 kt | -2 °C | 106 kt | 4 h 24 min | 6:40 am EDT (10:40 UTC) |
| 16,500 ft | 320° at 22 kt | +17 kt | -6 °C | 103 kt | 4 h 32 min | 6:48 am EDT (10:48 UTC) |
| 18,000 ft FL180 | 320° at 24 kt | +19 kt | -9 °C | 101 kt | 4 h 37 min | 6:53 am EDT (10:53 UTC) |
| 24,000 ft FL240 | 320° at 31 kt | +25 kt | -20 °C | 95 kt | 4 h 55 min | 7:11 am EDT (11:11 UTC) |
| 30,000 ft FL300 | 320° at 39 kt | +29 kt | -35 °C | 91 kt | 5 h 08 min | 7:24 am EDT (11:24 UTC) |
| 34,000 ft FL340 | 310° at 47 kt | +41 kt | -41 °C | 79 kt | 5 h 55 min | 8:11 am EDT (12:11 UTC) |
| 39,000 ft FL390 | 310° at 42 kt | +35 kt | -48 °C | 85 kt | 5 h 30 min | 7:46 am EDT (11:46 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| RIC | used from 0 nm out; 88 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° |
| EKN | used from 50 nm out; 61 nm from the line | 330/21 12° | 330/25 7° | 350/22 2° | 330/24 -10° | 310/27 -21° | 320/33 -35° | 290/31 -39° | 290/34 -47° | |
| CMH | used from 199 nm out; 57 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 348 nm out; 51 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° |
| IND | used from 397 nm out; 38 nm from the line | 290/16 | 310/20 16° | 320/21 10° | 330/13 3° | 300/25 -7° | 320/32 -19° | 330/46 -34° | 320/61 -43° | 320/63 -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 |
|---|---|---|---|---|---|---|---|
| DCA Washington, DC | departure | no report just now | 14 ft | ||||
| IAD Washington, DC | 20 nm out, 1 nm northwest of the line, tower | no report just now | 312 ft | ||||
| MRB Martinsburg, WV | 50 nm out, 21 nm north of the line, tower | no report just now | 564 ft | ||||
| MGW Morgantown, WV | 139 nm out, 14 nm north of the line, tower | no report just now | 1,243 ft | ||||
| CKB Clarksburg, WV | 149 nm out, 9 nm southwest of the line, tower | no report just now | 1,223 ft | ||||
| PKB Parkersburg, WV | 209 nm out, 19 nm south of the line, tower | no report just now | 858 ft | ||||
| LCK Columbus, OH | 278 nm out, 5 nm southwest of the line, tower | no report just now | 743 ft | ||||
| TZR Columbus, OH | 288 nm out, 2 nm west of the line, tower | no report just now | 904 ft | ||||
| DAY Dayton, OH | 338 nm out, 10 nm south of the line, tower | no report just now | 1,009 ft | ||||
| MIE Muncie, IN | 397 nm out, 2 nm east of the line, tower | no report just now | 937 ft | ||||
| GUS Peru, IN | 437 nm out, 20 nm north of the line, tower | no report just now | 810 ft | ||||
| LAF Lafayette, IN | destination | no report just now | 605 ft |
The highest airport on this list sits at 1,243 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At LAF when you get there the forecast at the estimated arrival, 6:33 am EDT (10:33 UTC)
LAF has no terminal forecast; use the nearest airport that does.
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, 20 nm along the route · a VIP movement · today · ZDC
Daylight
Sunset at DCA 6:34 pm EDT (22:34 UTC), at LAF 7:12 pm EDT (23:12 UTC) (civil twilight ends 7:40 pm EDT (23:40 UTC)). At 120 knots the arrival at LAF is before sunrise there (7:55 am EDT (11:55 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, Purdue University Airport.