Washington Dulles International to Nashville International IAD → BNA
470 nautical miles (541 statute miles) west on a straight line, true course 252°, about 262° magnetic at the departure end (variation 10W). At 120 knots that is 3 h 53 min at the quickest height in today's winds (8,500 ft, a 1-knot tailwind), arriving about 8:59 am CDT (13:59 UTC). Right now IAD is marginal VFR, wind from the north-northwest (330°) at 9 knots, gusting to 17; BNA is VFR, wind calm. 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: 2,065 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 below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the first 186 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 78 to 372 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
- B737 at 700 ft, 39 nm east, 5:33 am EDT (09:33 UTC): remarks: light rain. At the departure end, 39 nm east 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
- B737 at 800 ft, 39 nm east, 3:30 am EDT (07:30 UTC): remarks: bases 800 ft. At the departure end, 39 nm east of the line.
as filed, and in English
BWI UA /OV BWI/TM 0730/FL008/TP B737/RM BASES 008
- Report
- a routine report filed through BWI
- Where
- over BWI
- Time
- 07:30 UTC
- Height
- at 800 ft
- Aircraft
- B737
- Remarks
- bases 800 ft
- B738 at 33,000 ft, 13 nm north, 4:44 am EDT (08:44 UTC): -39 °C, wind 350° at 65 knots, remarks: produced by skypath. 127 nm along the route, 13 nm north of the line.
as filed, and in English
EKN UA /OV EKN188027 /TM 0844 /FL330 /TP B738 /TA M39 /WV 35065KT /TB MOD-CONS /RM PRODUCED BY SKYPATH
- Report
- a routine report filed through EKN
- Where
- 27 nm south (188°) of EKN
- Time
- 08:44 UTC
- Height
- at 33,000 ft
- Aircraft
- B738
- Temperature
- −39 °C
- Wind
- from 350° at 65 knots
- Turbulence
- mod-cons
- Remarks
- produced by skypath
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 6 forecast points nearest it (RIC, EKN, CRW, TRI, TYS, BNA). 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 | 330° at 21 kt | +2 kt | 10 °C | 118 kt | 3 h 59 min | 9:05 am CDT (14:05 UTC) |
| 6,500 ft | 340° at 23 kt | +1 kt | 11 °C | 119 kt | 3 h 57 min | 9:03 am CDT (14:03 UTC) |
| 8,500 ft | 340° at 28 kt | −1 kt | 9 °C | 121 kt | 3 h 53 min | 8:59 am CDT (13:59 UTC) |
| 10,500 ft | 340° at 29 kt | −1 kt | 6 °C | 121 kt | 3 h 53 min | 8:59 am CDT (13:59 UTC) |
| 12,500 ft | 340° at 29 kt | +1 kt | 3 °C | 119 kt | 3 h 57 min | 9:03 am CDT (14:03 UTC) |
| 14,500 ft | 340° at 31 kt | +2 kt | -1 °C | 118 kt | 3 h 59 min | 9:05 am CDT (14:05 UTC) |
| 16,500 ft | 330° at 33 kt | +4 kt | -4 °C | 116 kt | 4 h 03 min | 9:09 am CDT (14:09 UTC) |
| 18,000 ft FL180 | 330° at 35 kt | +5 kt | -7 °C | 115 kt | 4 h 05 min | 9:11 am CDT (14:11 UTC) |
| 24,000 ft FL240 | 340° at 38 kt | +3 kt | -20 °C | 117 kt | 4 h 01 min | 9:07 am CDT (14:07 UTC) |
| 30,000 ft FL300 | 340° at 49 kt | +3 kt | -34 °C | 117 kt | 4 h 01 min | 9:07 am CDT (14:07 UTC) |
| 34,000 ft FL340 | 330° at 55 kt | +9 kt | -41 °C | 111 kt | 4 h 14 min | 9:20 am CDT (14:20 UTC) |
| 39,000 ft FL390 | 320° at 40 kt | +13 kt | -50 °C | 107 kt | 4 h 24 min | 9:30 am CDT (14:30 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° |
| EKN | used from 49 nm out; 47 nm from the line | 330/20 10° | 350/29 7° | 340/32 2° | 340/44 -8° | 350/50 -21° | 350/63 -35° | 340/69 -40° | 330/42 -50° | |
| CRW | used from 147 nm out; 40 nm from the line | 320/17 | 340/23 12° | 340/32 8° | 340/35 4° | 330/40 -7° | 340/45 -20° | 340/57 -34° | 340/64 -42° | 320/38 -50° |
| TRI | used from 245 nm out; 60 nm from the line | 340/25 11° | 350/37 9° | 350/34 6° | 340/39 -7° | 340/43 -19° | 340/55 -32° | 330/58 -42° | 320/37 -50° | |
| TYS | used from 343 nm out; 69 nm from the line | 330/16 | 350/32 14° | 350/37 9° | 340/30 5° | 330/28 -6° | 340/36 -19° | 330/40 -33° | 330/51 -41° | 330/36 -51° |
| BNA | used from 392 nm out; 54 nm from the line | 300/20 | 300/14 15° | 300/14 10° | 300/13 4° | 310/22 -5° | 280/24 -18° | 310/37 -33° | 310/50 -41° | 320/49 -51° |
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 | marginal VFR Sky: a few clouds at 800 feet, a broken layer at 1,000 feet, overcast at 3,700 feet Weather: mist | from the north-northwest (330°) at 9 knots, gusting to 17 | 6 mi | 1,000 ft | 312 ft | 5:52 am EDT (09:52 UTC) |
| FRR Front Royal, VA | 39 nm out, 11 nm north of the line | marginal VFR Sky: overcast at 2,100 feet | calm | 10+ mi | 2,100 ft | 703 ft | 09:55 UTC |
| LUA Luray, VA | 49 nm out, 3 nm southwest of the line | marginal VFR Sky: scattered clouds at 200 feet, overcast at 2,200 feet | calm | 7 mi | 2,200 ft | 902 ft | 09:55 UTC |
| HSP Hot Springs, VA | 127 nm out, 20 nm southeast of the line | reported, no category | from the west (280°) at 18 knots, gusting to 22 | 0.25 mi | none | 3,792 ft | 06:15 UTC |
| LWB Lewisburg, WV | 157 nm out, 17 nm southeast of the line, tower | marginal VFR Sky: overcast at 1,900 feet | from the west (280°) at 6 knots | 10+ mi | 1,900 ft | 2,301 ft | 05:55 UTC |
| EBD Williamson, WV | 235 nm out, 4 nm northeast of the line | no report just now | 1,883 ft | ||||
| PBX Pikeville, KY | 255 nm out, 4 nm north of the line | IFR Sky: overcast at 500 feet Weather: mist | from the west-northwest (290°) at 4 knots | 3 mi | 500 ft | 1,464 ft | 09:55 UTC |
| CPF Hazard, KY | 294 nm out, 8 nm north of the line | IFR Sky: overcast at 500 feet | calm | 7 mi | 500 ft | 1,256 ft | 10:15 UTC |
| LOZ London, KY | 333 nm out, 4 nm north of the line | VFR | from the north (010°) at 9 knots, gusting to 16 | 10+ mi | none | 1,212 ft | 20:18 UTC |
| TZV Tompkinsville, KY | 411 nm out, 13 nm north of the line | no report just now | 1,036 ft | ||||
| XNX Gallatin, TN | 451 nm out, 9 nm northwest of the line | low IFR Sky: overcast at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 583 ft | 09:55 UTC |
| BNA Nashville, TN | destination | VFR | calm | 9 mi | none | 599 ft | 4:53 am CDT (09:53 UTC) |
The highest airport on this list sits at 3,792 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At BNA when you get there the forecast at the estimated arrival, 8:59 am CDT (13:59 UTC)
Wind from the south at 2 knots, visibility 5 miles, mist, scattered clouds at 300 feet marginal VFR
The whole forecast for BNA
- From Mon 1:00 am CDT (06:00 UTC): wind from the south at 4 knots, visibility 6 miles, mist, clear skies
- From Mon 7:00 am CDT (12:00 UTC): wind from the south at 2 knots, visibility 5 miles, mist, scattered clouds at 300 feet
- From Mon 9:00 am CDT (14:00 UTC): wind from the west-southwest at 7 knots, visibility more than 6 miles, a few clouds at 20,000 feet
- From Mon 8:00 pm CDT (01:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
The forecast for IAD, the departure
- 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
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
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 13 nm from the route, at the destination end · security · until 1 August · ZME
Daylight
Sunset at IAD 6:36 pm EDT (22:36 UTC), at BNA 6:15 pm CDT (23:15 UTC) (civil twilight ends 6:40 pm CDT (23:40 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, Nashville International.
