Patrick Leahy Burlington International to Washington Dulles International BTV → IAD
384 nautical miles (441 statute miles) southwest on a straight line, true course 212°, about 227° magnetic at the departure end (variation 15W). At 120 knots that is 2 h 47 min at the quickest height in today's winds (4,500 ft, a 18-knot tailwind), arriving about 8:52 am EDT (12:52 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: 2,391 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, fog). Over the whole route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the first 334 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the first 266 nm of the route.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the last 59 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 BTV.
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 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 4 forecast points nearest it (ALB, AVP, PSB, 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 | 360° at 21 kt | −18 kt | 12 °C | 138 kt | 2 h 47 min | 8:52 am EDT (12:52 UTC) |
| 6,500 ft | 360° at 20 kt | −17 kt | 10 °C | 137 kt | 2 h 48 min | 8:53 am EDT (12:53 UTC) |
| 8,500 ft | 350° at 20 kt | −15 kt | 8 °C | 135 kt | 2 h 51 min | 8:56 am EDT (12:56 UTC) |
| 10,500 ft | 340° at 21 kt | −14 kt | 5 °C | 134 kt | 2 h 52 min | 8:57 am EDT (12:57 UTC) |
| 12,500 ft | 340° at 22 kt | −14 kt | 1 °C | 134 kt | 2 h 52 min | 8:57 am EDT (12:57 UTC) |
| 14,500 ft | 340° at 22 kt | −13 kt | -3 °C | 133 kt | 2 h 53 min | 8:58 am EDT (12:58 UTC) |
| 16,500 ft | 330° at 23 kt | −12 kt | -8 °C | 132 kt | 2 h 55 min | 9:00 am EDT (13:00 UTC) |
| 18,000 ft FL180 | 330° at 23 kt | −11 kt | -11 °C | 131 kt | 2 h 56 min | 9:01 am EDT (13:01 UTC) |
| 24,000 ft FL240 | 330° at 26 kt | −13 kt | -22 °C | 133 kt | 2 h 53 min | 8:58 am EDT (12:58 UTC) |
| 30,000 ft FL300 | 330° at 29 kt | −13 kt | -37 °C | 133 kt | 2 h 53 min | 8:58 am EDT (12:58 UTC) |
| 34,000 ft FL340 | 300° at 31 kt | −2 kt | -43 °C | 122 kt | 3 h 09 min | 9:14 am EDT (13:14 UTC) |
| 39,000 ft FL390 | 290° at 33 kt | +7 kt | -50 °C | 113 kt | 3 h 24 min | 9:29 am EDT (13:29 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ALB | used from 0 nm out; 84 nm from the line | 340/22 | 340/19 9° | 320/16 7° | 330/16 2° | 330/19 -11° | 320/21 -23° | 320/25 -39° | 280/30 -44° | 270/41 -51° |
| AVP | used from 148 nm out; 47 nm from the line | 010/20 | 020/24 11° | 360/19 8° | 350/23 2° | 320/24 -11° | 330/25 -22° | 330/27 -37° | 310/28 -42° | 290/30 -50° |
| PSB | used from 295 nm out; 85 nm from the line | 020/21 12° | 360/28 7° | 360/29 1° | 350/33 -10° | 350/42 -22° | 350/49 -37° | 340/63 -43° | 350/39 -52° | |
| RIC | used from 344 nm out; 104 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 |
|---|---|---|---|---|---|---|---|
| BTV Burlington, VT | departure | no report just now | 334 ft | ||||
| LKP Lake Placid, NY | 30 nm out, 23 nm northwest of the line | no report just now | 1,747 ft | ||||
| GFL Glens Falls, NY | 69 nm out, 19 nm southeast of the line | no report just now | 328 ft | ||||
| SCH Schenectady, NY | 98 nm out, 22 nm southeast of the line, tower | no report just now | 377 ft | ||||
| MSV Monticello, NY | 177 nm out, 24 nm southeast of the line | no report just now | 1,403 ft | ||||
| AVP Wilkes-Barre/Scranton, PA | 216 nm out, 3 nm southwest of the line, tower | no report just now | 961 ft | ||||
| LNS Lancaster, PA | 295 nm out, 13 nm southeast of the line, tower | no report just now | 402 ft | ||||
| MDT Harrisburg, PA | 305 nm out, 8 nm northwest of the line, tower | no report just now | 310 ft | ||||
| FDK Frederick, MD | 354 nm out, 11 nm west of the line, tower | no report just now | 308 ft | ||||
| IAD Washington, DC | destination | no report just now | 312 ft |
The highest airport on this list sits at 1,747 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, 8:52 am EDT (12:52 UTC)
IAD has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 24 nm from the route, 344 nm along the route · drones kept away from a public gathering · starts Saturday 17 October · ZDC
- 4/9383 WASHINGTON, DC., USA 5 nm from the route, at the destination end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the destination end · a VIP movement · today · ZDC
Daylight
Sunset at BTV 6:13 pm EDT (22:13 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: Patrick Leahy Burlington International, Washington Dulles International.