Louisville Muhammad Ali International to Ronald Reagan Washington Ntl Airport SDF → DCA
411 nautical miles (472 statute miles) east on a straight line, true course 082°, about 087° magnetic at the departure end (variation 5W). At 120 knots that is 2 h 38 min at the quickest height in today's winds (39,000 ft, a 36-knot tailwind), arriving about 11:43 pm EDT (03:43 UTC), after sunset at the destination. Right now SDF is VFR, wind from the southwest (220°) at 4 knots; DCA is low IFR, wind from the north-northeast (030°) at 9 knots. 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: 1,981 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 route from 68 to 254 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 166 to 352 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the route from 274 to 401 nm out.
- 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 98 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 SDF.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- UAL2761 at 31,000 ft, 35 nm north, 7:57 pm EDT (23:57 UTC): moderate turbulence, wind 218° at 58 knots. 283 nm along the route, 35 nm north of the line.
as filed, and in English
ARP UAL2761 3917N 07949W 2357 F310 218/058KT TB CONT MOD TURB IC
- Report
- a routine report filed through ARP
- E170 at 22,500 ft, 25 nm north, 7:44 pm EDT (23:44 UTC): moderate clear-air turbulence from 18,000 ft to 22,500 ft, remarks: during the descent FRDMM7 star. 342 nm along the route, 25 nm north of the line.
as filed, and in English
OKV UA /OV ESL100020/TM 2344/FL225/TP E170/TB CONS MOD CAT 180-225/RM DURD FRDMM7 STAR
- Report
- a routine report filed through OKV
- Where
- 20 nm east (100°) of ESL
- Time
- 23:44 UTC
- Height
- at 22,500 ft
- Aircraft
- E170
- Turbulence
- continuous moderate clear-air turbulence from 18,000 ft to 22,500 ft
- Remarks
- during the descent FRDMM7 star
- E170 climbing, 0 nm north, 6:26 pm EDT (22:26 UTC): a routine report with nothing remarked on. At the departure end, 0 nm north of the line.
as filed, and in English
SDF UA /OV SDF/TM 2226/FLDURC/TP E170/SK B022 T036
- Report
- a routine report filed through SDF
- Where
- over SDF
- Time
- 22:26 UTC
- Height
- during the climb
- Aircraft
- E170
- Sky
- B022 T036
- M600 at 1,800 ft, 5 nm northeast, 6:12 pm EDT (22:12 UTC): overcast above 1,800 ft. At the departure end, 5 nm northeast of the line.
as filed, and in English
LOU UA /OV DURD/TM 2212/FL018/TP M600/SK OVC018-TOPO37
- Report
- a routine report filed through LOU
- Where
- over DURD
- Time
- 22:12 UTC
- Height
- at 1,800 ft
- Aircraft
- M600
- Sky
- OVC018-TOPO37
- CRJ9 descending, 16 nm south, 7:43 pm EDT (23:43 UTC): overcast up to 6,200 ft; overcast above 1,800 ft. 49 nm along the route, 16 nm south of the line.
as filed, and in English
LEX UA /OV LEX/TM 2343/FLDURD/TP CRJ9/SK TOPS OVC062 BASES OVC018
- Report
- a routine report filed through LEX
- Where
- over LEX
- Time
- 23:43 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- tops OVC062 bases OVC018
- B739 climbing, 44 nm north, 7:31 pm EDT (23:31 UTC): overcast. 49 nm along the route, 44 nm north of the line.
as filed, and in English
CVG UA /OV 5 W CVG/TM 2331/FLDURC/TP B739/SK B026 OVC T036
- Report
- a routine report filed through CVG
- Where
- 5 west cvg
- Time
- 23:31 UTC
- Height
- during the climb
- Aircraft
- B739
- Sky
- B026 overcast T036
- A333 at 4,000 ft, 44 nm north, 6:44 pm EDT (22:44 UTC): overcast. 49 nm along the route, 44 nm north of the line.
as filed, and in English
CVG UA /OV CVG270010/TM 2244/FL040/TP A333/SK B025 OVC T035
- Report
- a routine report filed through CVG
- Where
- 10 nm west (270°) of CVG
- Time
- 22:44 UTC
- Height
- at 4,000 ft
- Aircraft
- A333
- Sky
- B025 overcast T035
- B737 at 23,000 ft, 43 nm north, 7:51 pm EDT (23:51 UTC): light turbulence. 59 nm along the route, 43 nm north of the line.
as filed, and in English
IND UA /OV CVG/TM 2351/FL230/TP B737/TB LGT
- Report
- a routine report filed through IND
- Where
- over CVG
- Time
- 23:51 UTC
- Height
- at 23,000 ft
- Aircraft
- B737
- Turbulence
- light
- B753 at 32,000 ft, 43 nm north, 6:11 pm EDT (22:11 UTC): no turbulence. 59 nm along the route, 43 nm north of the line.
as filed, and in English
IND UA /OV CVG/TM 2211/FL320/TP B753/TB NEG
- Report
- a routine report filed through IND
- Where
- over CVG
- Time
- 22:11 UTC
- Height
- at 32,000 ft
- Aircraft
- B753
- Turbulence
- none
- CRJ9 at 28,000 ft, 9 nm north, 6:33 pm EDT (22:33 UTC): light turbulence. 98 nm along the route, 9 nm north of the line.
as filed, and in English
IND UA /OV FGX/TM 2233/FL280/TP CRJ9/TB LGT
- Report
- a routine report filed through IND
- Where
- over FGX
- Time
- 22:33 UTC
- Height
- at 28,000 ft
- Aircraft
- CRJ9
- Turbulence
- light
- P28A climbing, 6 nm northwest, 7:15 pm EDT (23:15 UTC): no turbulence, remarks: instrument conditions. 147 nm along the route, 6 nm northwest of the line.
as filed, and in English
HTS UA /OV DWU/TM 2315/FLDURC/TP P28A/TB SMOOTH/RM IMC
- Report
- a routine report filed through HTS
- Where
- over DWU
- Time
- 23:15 UTC
- Height
- during the climb
- Aircraft
- P28A
- Turbulence
- smooth
- Remarks
- instrument conditions
- P28A descending, 41 nm north, 6:14 pm EDT (22:14 UTC): scattered clouds above 1,200 ft. 166 nm along the route, 41 nm north of the line.
as filed, and in English
HTS UA /OV KUNI/TM 2214/FLDURD/TP P28A/SK SCT012/WX 3SM
- Report
- a routine report filed through HTS
- Where
- over KUNI
- Time
- 22:14 UTC
- Height
- during the descent
- Aircraft
- P28A
- Sky
- scattered clouds from 1,200 ft
- Weather
- 3SM
- CRJ9 climbing, 12 nm south, 8:15 pm EDT (00:15 UTC): a routine report with nothing remarked on. 195 nm along the route, 12 nm south of the line.
as filed, and in English
CRW UA /OV CRW/TM 0015/FLDURC/TP CRJ9/SK BASES 014 TOPS 070
- Report
- a routine report filed through CRW
- Where
- over CRW
- Time
- 00:15 UTC
- Height
- during the climb
- Aircraft
- CRJ9
- Sky
- bases 1,400 ft tops 7,000 ft
- CRJ9 at 15,000 ft, 49 nm south, 8:23 pm EDT (00:23 UTC): no turbulence. 215 nm along the route, 49 nm south of the line.
as filed, and in English
IND UA /OV BKW/TM 0023/FL150/TP CRJ9/TB NEG
- Report
- a routine report filed through IND
- Where
- over BKW
- Time
- 00:23 UTC
- Height
- at 15,000 ft
- Aircraft
- CRJ9
- Turbulence
- none
16 more routine reports are on the map.
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 5 forecast points nearest it (LOU, CVG, CRW, 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 | 290° at 9 kt | −7 kt | 127 kt | 3 h 14 min | 12:19 am EDT (04:19 UTC) | |
| 5,500 ft | 290° at 12 kt | −11 kt | 13 °C | 131 kt | 3 h 08 min | 12:13 am EDT (04:13 UTC) |
| 7,500 ft | 290° at 11 kt | −10 kt | 11 °C | 130 kt | 3 h 10 min | 12:15 am EDT (04:15 UTC) |
| 9,500 ft | 300° at 10 kt | −8 kt | 7 °C | 128 kt | 3 h 13 min | 12:18 am EDT (04:18 UTC) |
| 11,500 ft | 300° at 8 kt | −6 kt | 4 °C | 126 kt | 3 h 16 min | 12:21 am EDT (04:21 UTC) |
| 13,500 ft | 300° at 9 kt | −7 kt | 0 °C | 127 kt | 3 h 14 min | 12:19 am EDT (04:19 UTC) |
| 15,500 ft | 290° at 11 kt | −9 kt | -4 °C | 129 kt | 3 h 11 min | 12:16 am EDT (04:16 UTC) |
| 17,500 ft | 290° at 13 kt | −11 kt | -8 °C | 131 kt | 3 h 08 min | 12:13 am EDT (04:13 UTC) |
| 18,000 ft FL180 | 290° at 13 kt | −12 kt | -9 °C | 132 kt | 3 h 07 min | 12:12 am EDT (04:12 UTC) |
| 24,000 ft FL240 | 260° at 23 kt | −22 kt | -20 °C | 142 kt | 2 h 54 min | 11:59 pm EDT (03:59 UTC) |
| 30,000 ft FL300 | 230° at 35 kt | −29 kt | -32 °C | 149 kt | 2 h 46 min | 11:51 pm EDT (03:51 UTC) |
| 34,000 ft FL340 | 240° at 40 kt | −35 kt | -38 °C | 155 kt | 2 h 39 min | 11:44 pm EDT (03:44 UTC) |
| 39,000 ft FL390 | 240° at 39 kt | −36 kt | -48 °C | 156 kt | 2 h 38 min | 11:43 pm EDT (03:43 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LOU | used from 0 nm out; 21 nm from the line | 320/15 | 340/24 14° | 330/28 9° | 340/34 4° | 340/37 -9° | 340/42 -20° | 320/39 -35° | 320/45 -39° | 330/40 -47° |
| CVG | used from 49 nm out; 48 nm from the line | 350/13 | 340/20 13° | 340/22 8° | 350/30 3° | 340/30 -9° | 340/38 -21° | 330/37 -35° | 320/38 -40° | 310/35 -47° |
| CRW | used from 98 nm out; 74 nm from the line | 320/16 | 310/16 12° | 320/12 7° | 320/12 2° | 330/15 -11° | 280/11 -22° | 230/26 -30° | 240/33 -37° | 240/37 -47° |
| EKN | used from 244 nm out; 15 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 342 nm out; 84 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 |
|---|---|---|---|---|---|---|---|
| SDF Louisville, KY | departure | VFR Sky: a few clouds at 3,300 feet | from the southwest (220°) at 4 knots | 10+ mi | none | 500 ft | 8:56 pm EDT (00:56 UTC) |
| FFT Frankfort, KY | 39 nm out, 5 nm south of the line | reported, no category | calm | none | 812 ft | 00:53 UTC | |
| LEX Lexington, KY | 49 nm out, 16 nm south of the line, tower | IFR Sky: a broken layer at 800 feet, overcast at 1,500 feet | from the west (270°) at 6 knots | 9 mi | 800 ft | 979 ft | 00:59 UTC |
| FGX Flemingsburg, KY | 98 nm out, 9 nm north of the line | low IFR Sky: overcast at 300 feet Weather: mist | from the northwest (320°) at 7 knots | 1.75 mi | 300 ft | 913 ft | 23:35 UTC |
| HTS Huntington, WV | 147 nm out, 8 nm southeast of the line, tower | IFR Sky: overcast at 700 feet Weather: mist | from the west-northwest (300°) at 6 knots | 1 mi | 700 ft | 828 ft | 00:51 UTC |
| CRW Charleston, WV | 195 nm out, 12 nm south of the line, tower | IFR Sky: a broken layer at 700 feet, overcast at 1,500 feet Weather: mist | variable at 6 knots | 1 mi | 700 ft | 947 ft | 00:54 UTC |
| SXL Summersville, WV | 225 nm out, 24 nm south of the line | no report just now | 1,819 ft | ||||
| EKN Elkins, WV | 283 nm out, 12 nm northwest of the line | marginal VFR Sky: overcast at 1,800 feet Weather: light rain, mist | calm | 3 mi | 1,800 ft | 1,987 ft | 00:51 UTC |
| VBW Bridgewater, VA | 323 nm out, 24 nm south of the line | IFR Sky: overcast at 700 feet | calm | 10+ mi | 700 ft | 1,165 ft | 23:35 UTC |
| LUA Luray, VA | 342 nm out, 7 nm south of the line | low IFR Sky: a broken layer at 400 feet, a broken layer at 1,100 feet, overcast at 1,900 feet | from the north-northeast (020°) at 4 knots | 10+ mi | 400 ft | 902 ft | 23:35 UTC |
| HEF Washington, DC | 391 nm out, 7 nm southwest of the line, tower | IFR Sky: overcast at 500 feet Weather: light rain | from the north (350°) at 7 knots | 3 mi | 500 ft | 192 ft | 00:56 UTC |
| DCA Washington, DC | destination | low IFR Sky: overcast at 400 feet Weather: mist | from the north-northeast (030°) at 9 knots | 6 mi | 400 ft | 14 ft | 8:52 pm EDT (00:52 UTC) |
The highest airport on this list sits at 1,987 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DCA when you get there the forecast at the estimated arrival, 11:43 pm EDT (03:43 UTC)
Wind from the northeast at 5 knots, visibility 2 miles, rain showers, mist, overcast at 500 feet IFR
The whole forecast for DCA
- From Sun 8:00 pm EDT (00:00 UTC): wind from the north-northeast at 9 knots, visibility 5 miles, light rain showers, mist, overcast at 700 feet
- From Sun 10:00 pm EDT (02:00 UTC): wind from the northeast at 5 knots, visibility 2 miles, rain showers, mist, overcast at 500 feet
- From Mon 1:00 am EDT (05:00 UTC): wind from the north at 7 knots, visibility 4 miles, light rain showers, mist, overcast at 800 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, overcast at 1,200 feet
- From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 13 knots, gusting to 22, visibility more than 6 miles, a broken layer at 1,500 feet, overcast at 2,500 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility more than 6 miles, a broken layer at 3,500 feet
- From Mon 7:00 pm EDT (23:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, a few clouds at 5,000 feet, scattered clouds at 25,000 feet
The forecast for SDF, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Sun 8:30 pm EDT (00:30 UTC): wind from the southwest at 3 knots, visibility more than 6 miles, clear skies
- From Mon 6:00 am EDT (10:00 UTC): wind from the south-southeast at 3 knots, visibility 4 miles, mist, clear skies
- From Mon 9:00 am EDT (13:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA on the route, at the destination end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 9 nm from the route, at the destination end · a VIP movement · today · ZDC
Daylight
Sunset at SDF 7:09 pm EDT (23:09 UTC), at DCA 6:34 pm EDT (22:34 UTC) (civil twilight ends 7:01 pm EDT (23:01 UTC)). At 120 knots the arrival at DCA is before sunrise there (7:14 am EDT (11:14 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: Louisville Muhammad Ali International, Ronald Reagan Washington Ntl Airport.
