Washington Dulles International to Benjamin Taisacan Manglona International IAD → GRO
6,820 nautical miles (7,848 statute miles) northwest on a straight line, true course 314°, about 324° magnetic at the departure end (variation 10W). At 120 knots that is 48 h 02 min at the quickest height in today's winds (18,000 ft, a 22-knot tailwind), arriving about 3:48 pm ChST (05:48 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 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 E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 2:55 am EDT (06:55 UTC). Over the first 90 nm of the route.
as issued
WSUS31 KKCI 120455 MKCE WST 120455 CONVECTIVE SIGMET 19E VALID UNTIL 0655Z CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.
- 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 first 449 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 90 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 170 nm out.
- 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, 629 nm along the route.
- AIRMET SIERRA 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 799 to 969 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 IAD.
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 17 forecast points nearest it (EKN, AGC, CLE, MKG, TVC, GRB, DLH, INL, GFK, MOT, GGW, GPI, GEG, SEA, AST, CAR, AST). 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 | 040° at 6 kt | −5 kt | 0 °C | 125 kt | 54 h 34 min | 10:20 pm ChST (12:20 UTC) |
| 6,500 ft | 020° at 7 kt | −6 kt | 2 °C | 126 kt | 54 h 08 min | 9:54 pm ChST (11:54 UTC) |
| 8,500 ft | 020° at 11 kt | −9 kt | -1 °C | 129 kt | 52 h 52 min | 8:38 pm ChST (10:38 UTC) |
| 10,500 ft | 020° at 17 kt | −13 kt | -3 °C | 133 kt | 51 h 17 min | 7:03 pm ChST (09:03 UTC) |
| 12,500 ft | 010° at 24 kt | −18 kt | -5 °C | 138 kt | 49 h 25 min | 5:11 pm ChST (07:11 UTC) |
| 14,500 ft | 010° at 30 kt | −19 kt | -8 °C | 139 kt | 49 h 04 min | 4:50 pm ChST (06:50 UTC) |
| 16,500 ft | 360° at 36 kt | −21 kt | -11 °C | 141 kt | 48 h 22 min | 4:08 pm ChST (06:08 UTC) |
| 18,000 ft FL180 | 360° at 41 kt | −22 kt | -14 °C | 142 kt | 48 h 02 min | 3:48 pm ChST (05:48 UTC) |
| 24,000 ft FL240 | 350° at 46 kt | −19 kt | -24 °C | 139 kt | 49 h 04 min | 4:50 pm ChST (06:50 UTC) |
| 30,000 ft FL300 | 340° at 54 kt | −13 kt | -39 °C | 133 kt | 51 h 17 min | 7:03 pm ChST (09:03 UTC) |
| 34,000 ft FL340 | 340° at 47 kt | −8 kt | -47 °C | 128 kt | 53 h 17 min | 9:03 pm ChST (11:03 UTC) |
| 39,000 ft FL390 | 300° at 28 kt | +13 kt | -46 °C | 107 kt | 63 h 44 min | 7:30 am ChST (21:30 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| EKN | used from 0 nm out; 96 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° | |
| AGC | used from 50 nm out; 68 nm from the line | 350/14 | 330/20 11° | 340/18 8° | 330/17 3° | 340/22 -11° | 340/31 -22° | 330/33 -36° | 300/34 -41° | 300/35 -47° |
| CLE | used from 200 nm out; 37 nm from the line | 340/7 | 010/16 13° | 350/18 8° | 350/20 3° | 340/31 -10° | 340/46 -21° | 340/54 -37° | 330/62 -44° | 340/65 -49° |
| MKG | used from 349 nm out; 116 nm from the line | 260/22 | 290/16 15° | 300/11 10° | 290/5 3° | 300/26 -9° | 300/32 -20° | 320/48 -36° | 320/61 -45° | 310/74 -53° |
| TVC | used from 399 nm out; 80 nm from the line | 260/31 | 280/22 15° | 290/18 10° | 270/13 2° | 290/25 -10° | 300/35 -21° | 310/52 -37° | 320/59 -47° | 300/84 -54° |
| GRB | used from 549 nm out; 59 nm from the line | 250/36 | 270/23 16° | 270/14 9° | 240/18 4° | 280/26 -9° | 280/29 -20° | 290/42 -36° | 290/51 -45° | 290/72 -55° |
| DLH | used from 699 nm out; 87 nm from the line | 080/28 | 240/21 15° | 250/26 9° | 250/32 3° | 260/42 -11° | 270/40 -21° | 260/43 -36° | 260/46 -46° | 260/65 -54° |
| INL | used from 849 nm out; 29 nm from the line | 080/23 | L/V 9° | 260/22 5° | 260/27 0° | 260/43 -11° | 270/47 -21° | 270/57 -36° | 270/54 -47° | 270/69 -56° |
| GFK | used from 999 nm out; 96 nm from the line | 070/18 | 100/10 9° | 250/11 6° | 250/27 1° | 250/34 -10° | 260/43 -21° | 260/39 -36° | 260/36 -46° | 260/59 -53° |
| MOT | used from 1148 nm out; 158 nm from the line | 120/14 5° | 200/20 4° | 230/33 1° | 250/39 -11° | 250/50 -21° | 240/61 -37° | 250/56 -45° | 260/68 -51° | |
| GGW | used from 1348 nm out; 250 nm from the line | 110/23 0° | 130/20 -2° | 170/24 -3° | 230/44 -11° | 220/51 -21° | 210/52 -39° | 220/64 -44° | 240/85 -48° | |
| GPI | used from 1598 nm out; 348 nm from the line | 070/19 -5° | 100/16 -7° | 080/10 -8° | 130/8 -19° | 170/37 -28° | 200/50 -40° | 210/43 -40° | 220/41 -42° | |
| GEG | used from 1947 nm out; 473 nm from the line | 080/16 -2° | 050/17 -7° | 080/9 -10° | 190/33 -21° | 180/31 -32° | L/V -35° | L/V -37° | 270/8 -40° | |
| SEA | used from 1997 nm out; 480 nm from the line | 050/7 | 050/11 1° | 050/12 -5° | 030/31 -7° | 010/61 -15° | 010/69 -26° | 360/73 -40° | 360/62 -47° | 330/21 -43° |
| AST | used from 2846 nm out; 1033 nm from the line | 040/7 | 010/8 1° | 020/19 -4° | 020/36 -5° | 010/61 -14° | 360/67 -25° | 350/77 -40° | 350/66 -48° | 330/25 -44° |
| CAR | used from 4194 nm out; 2719 nm from the line | 270/44 | 290/31 10° | 290/23 4° | 280/23 -1° | 260/36 -13° | 270/50 -24° | 260/77 -37° | 250/93 -48° | 260/102 -56° |
| AST | used from 4244 nm out; 2328 nm from the line | 040/7 | 010/8 1° | 020/19 -4° | 020/36 -5° | 010/61 -14° | 360/67 -25° | 350/77 -40° | 350/66 -48° | 330/25 -44° |
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 |
|---|---|---|---|---|---|---|---|
| IAD Washington, DC | departure | no report just now | 312 ft | ||||
| YNG Youngstown/Warren, OH | 200 nm out, 3 nm northwest of the line, tower | no report just now | 1,191 ft | ||||
| ORB Orr, MN | 859 nm out, 2 nm northwest of the line | no report just now | 1,312 ft | ||||
| CZST Stewart, | 2297 nm out, 5 nm southeast of the line | no report just now | 24 ft | ||||
| GSN Saipan Island, MP | 6760 nm out, 10 nm northwest of the line, tower | no report just now | 214 ft | ||||
| GRO Rota Island, MP | destination | no report just now | 606 ft |
The highest airport on this list sits at 1,312 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At GRO when you get there the forecast at the estimated arrival, 3:48 pm ChST (05:48 UTC)
GRO 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 8 nm from 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, at the departure end · a VIP movement · today · ZDC
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the departure end · a VIP movement · today · ZOB
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the departure end · a VIP movement · today · ZOB
- 6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 1 nm from the route, at the departure end · security · today · ZOB
Daylight
Sunset at IAD 6:36 pm EDT (22:36 UTC), at GRO 6:01 pm ChST (08:01 UTC) (civil twilight ends 6:23 pm ChST (08:23 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: Washington Dulles International, Benjamin Taisacan Manglona International.