Jackson Hole Airport to Washington Dulles International JAC → IAD
1,517 nautical miles (1,746 statute miles) east on a straight line, true course 089°, about 076° magnetic at the departure end (variation 13E). At 120 knots that is 9 h 02 min at the quickest height in today's winds (39,000 ft, a 48-knot tailwind), arriving about 6:12 am EDT (10:12 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: 31 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 130 nm of the route.
- AIRMET TANGO 1W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the first 180 nm of the route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the first 50 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 339 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 220 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 190 nm of the route.
- 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 route from 1178 to 1297 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1347 to 1487 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 150 nm of the route.
- 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 last 110 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 JAC.
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 20:00–03:00 UTC · at 120 knots true airspeed
The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 13 forecast points nearest it (LND, RAP, PIR, ONL, FSD, MCW, DBQ, JOT, FWA, CMH, AGC, EKN, 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 |
|---|---|---|---|---|---|---|
| 3,500 ft | 230° at 10 kt | −6 kt | 126 kt | 12 h 02 min | 9:12 am EDT (13:12 UTC) | |
| 5,500 ft | 240° at 8 kt | −7 kt | 14 °C | 127 kt | 11 h 57 min | 9:07 am EDT (13:07 UTC) |
| 7,500 ft | 230° at 11 kt | −8 kt | 12 °C | 128 kt | 11 h 51 min | 9:01 am EDT (13:01 UTC) |
| 9,500 ft | 230° at 12 kt | −9 kt | 9 °C | 129 kt | 11 h 46 min | 8:56 am EDT (12:56 UTC) |
| 11,500 ft | 230° at 12 kt | −10 kt | 5 °C | 130 kt | 11 h 40 min | 8:50 am EDT (12:50 UTC) |
| 13,500 ft | 240° at 14 kt | −12 kt | 1 °C | 132 kt | 11 h 30 min | 8:40 am EDT (12:40 UTC) |
| 15,500 ft | 240° at 16 kt | −15 kt | -3 °C | 135 kt | 11 h 14 min | 8:24 am EDT (12:24 UTC) |
| 17,500 ft | 250° at 19 kt | −18 kt | -8 °C | 138 kt | 11 h | 8:10 am EDT (12:10 UTC) |
| 18,000 ft FL180 | 250° at 19 kt | −18 kt | -9 °C | 138 kt | 11 h | 8:10 am EDT (12:10 UTC) |
| 24,000 ft FL240 | 250° at 23 kt | −23 kt | -21 °C | 143 kt | 10 h 37 min | 7:47 am EDT (11:47 UTC) |
| 30,000 ft FL300 | 260° at 30 kt | −29 kt | -35 °C | 149 kt | 10 h 11 min | 7:21 am EDT (11:21 UTC) |
| 34,000 ft FL340 | 260° at 39 kt | −38 kt | -41 °C | 158 kt | 9 h 36 min | 6:46 am EDT (10:46 UTC) |
| 39,000 ft FL390 | 270° at 49 kt | −48 kt | -49 °C | 168 kt | 9 h 02 min | 6:12 am EDT (10:12 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LND | used from 0 nm out; 79 nm from the line | 180/33 10° | 190/50 3° | 210/59 -9° | 200/50 -21° | 190/41 -34° | 230/55 -39° | 240/65 -47° | ||
| RAP | used from 200 nm out; 113 nm from the line | 120/15 12° | 180/22 11° | 220/26 5° | 230/35 -9° | 240/40 -22° | 240/50 -37° | 240/51 -41° | 240/47 -47° | |
| PIR | used from 399 nm out; 72 nm from the line | L/V 17° | 230/13 12° | 220/22 6° | 250/31 -9° | 250/34 -21° | 240/50 -35° | 230/61 -43° | 240/62 -51° | |
| ONL | used from 449 nm out; 69 nm from the line | 200/20 17° | 230/26 14° | 240/21 7° | 250/27 -9° | 260/32 -19° | 240/44 -34° | 240/56 -41° | 250/62 -51° | |
| FSD | used from 549 nm out; 52 nm from the line | 200/16 | 220/20 17° | 240/26 13° | 230/19 6° | 240/25 -9° | 240/28 -20° | 250/39 -33° | 250/44 -43° | 260/63 -52° |
| MCW | used from 699 nm out; 53 nm from the line | 200/35 | 240/33 18° | 250/20 10° | 260/10 6° | 270/18 -8° | 260/28 -19° | 280/30 -34° | 290/49 -43° | 280/70 -54° |
| DBQ | used from 798 nm out; 60 nm from the line | 220/23 | 240/22 16° | 240/24 10° | 260/18 5° | 270/16 -8° | 290/27 -19° | 310/42 -35° | 320/55 -44° | 300/71 -52° |
| JOT | used from 948 nm out; 30 nm from the line | 230/11 | 290/12 16° | 300/19 10° | 320/19 4° | 300/17 -9° | 330/31 -20° | 320/49 -37° | 320/53 -45° | 320/67 -49° |
| FWA | used from 1048 nm out; 68 nm from the line | 350/9 | 350/24 15° | 360/25 9° | 360/29 4° | 350/31 -10° | 340/39 -22° | 330/40 -37° | 320/38 -43° | 320/48 -48° |
| CMH | used from 1198 nm out; 44 nm from the line | 340/14 | 320/13 12° | 350/12 8° | 360/10 2° | 350/27 -10° | 340/20 -22° | 320/31 -35° | 270/25 -39° | 260/32 -48° |
| AGC | used from 1347 nm out; 40 nm from the line | 140/12 | 350/10 12° | L/V 9° | L/V 3° | 200/11 -11° | 220/21 -22° | 220/47 -33° | 230/51 -39° | 230/45 -48° |
| EKN | used from 1397 nm out; 44 nm from the line | 270/18 13° | 310/5 7° | 140/7 3° | 210/16 -9° | 220/41 -20° | 210/57 -32° | 220/57 -38° | 230/49 -47° | |
| RIC | used from 1497 nm out; 92 nm from the line | 190/33 | 200/29 14° | 210/31 12° | 210/38 6° | 230/42 -7° | 230/68 -16° | 220/84 -29° | 220/86 -40° | 220/81 -52° |
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 |
|---|---|---|---|---|---|---|---|
| JAC Jackson, WY | departure | no report just now | 6,451 ft | ||||
| DUB Dubois, WY | 50 nm out, 6 nm southwest of the line | no report just now | 7,298 ft | ||||
| ECS Newcastle, WY | 279 nm out, 23 nm north of the line | no report just now | 4,177 ft | ||||
| SUO Rosebud, SD | 429 nm out, 3 nm southeast of the line | no report just now | 2,724 ft | ||||
| AGZ Wagner, SD | 539 nm out, 5 nm east of the line | no report just now | 1,477 ft | ||||
| FOD Fort Dodge, IA | 728 nm out, 3 nm southwest of the line | no report just now | 1,156 ft | ||||
| ALO Waterloo, IA | 808 nm out, 14 nm north of the line, tower | no report just now | 873 ft | ||||
| LOT Chicago/Romeoville, IL | 1008 nm out, 4 nm northwest of the line, tower | no report just now | 679 ft | ||||
| FWA Fort Wayne, IN | 1138 nm out, 3 nm southeast of the line, tower | no report just now | 814 ft | ||||
| HLG Wheeling, WV | 1357 nm out, 18 nm north of the line, tower | no report just now | 1,194 ft | ||||
| MGW Morgantown, WV | 1397 nm out, 2 nm west of the line, tower | no report just now | 1,243 ft | ||||
| IAD Washington, DC | destination | no report just now | 312 ft |
The highest airport on this list sits at 7,298 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, 6:12 am EDT (10:12 UTC)
IAD 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 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 JAC 6:44 pm MDT (00:44 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 UTC)). At 120 knots the arrival at IAD is before sunrise there (7:16 am EDT (11:16 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: Jackson Hole Airport, Washington Dulles International.