Purdue University Airport to Ronald Reagan Washington Ntl Airport LAF → DCA
467 nautical miles (537 statute miles) east on a straight line, true course 098°, about 099° magnetic at the departure end (variation 1W). At 120 knots that is 2 h 56 min at the quickest height in today's winds (34,000 ft, a 39-knot tailwind), arriving about 2:29 am EDT (06:29 UTC), after sunset at the destination. Right now LAF is VFR, wind calm; DCA is IFR, wind from the north-northeast (020°) at 7 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: 2 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 E11E: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 20 knots, until 12:55 am EDT (04:55 UTC). Over the last 109 nm of the route.
as issued
WSUS31 KKCI 120255 MKCE WST 120255 CONVECTIVE SIGMET 11E VALID UNTIL 0455Z NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS FROM 20NE JFK-90SE SIE-20NNW ORF-30ENE EKN-10S JST-20NE JFK AREA EMBD TS MOV FROM 24020KT. TOPS TO FL340.
- 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 417 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 268 to 417 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 169 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 LAF.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A320 at 34,000 ft, 40 nm north, 10:03 pm EDT (02:03 UTC): moderate chop turbulence. 109 nm along the route, 40 nm north of the line.
as filed, and in English
FWA UA /OV FWA115040/TM 0203/FL340/TP A320/TB MOD CHOP
- Report
- a routine report filed through FWA
- Where
- 40 nm southeast (115°) of FWA
- Time
- 02:03 UTC
- Height
- at 34,000 ft
- Aircraft
- A320
- Turbulence
- moderate chop
- B38M at 29,000 ft, 22 nm north, 8:55 pm EDT (00:55 UTC): moderate turbulence above 29,000 ft, remarks: zob. 308 nm along the route, 22 nm north of the line.
as filed, and in English
MPG UA /OV AIR120030/TM 0055/FL290/TP B38M /TB OCNL MOD 290/RM ZOB
- Report
- a routine report filed through MPG
- Where
- 30 nm southeast (120°) of AIR
- Time
- 00:55 UTC
- Height
- at 29,000 ft
- Aircraft
- B38M
- Turbulence
- occasional moderate at 29,000 ft
- Remarks
- zob
- B38M at 20,000 ft, 3 nm north, 11:11 pm EDT (03:11 UTC): moderate clear-air turbulence from 20,000 ft to 25,000 ft. 427 nm along the route, 3 nm north of the line.
as filed, and in English
IAD UA /OV AML300020/TM 0311/FL200/TP B38M/TB MOD CAT 200-250
- Report
- a routine report filed through IAD
- Where
- 20 nm northwest (300°) of AML
- Time
- 03:11 UTC
- Height
- at 20,000 ft
- Aircraft
- B38M
- Turbulence
- moderate clear-air turbulence from 20,000 ft to 25,000 ft
- CRJ9 descending, 10 nm south, 9:15 pm EDT (01:15 UTC): a routine report with nothing remarked on. 129 nm along the route, 10 nm south of the line.
as filed, and in English
DAY UA /OV DAY/TM 0115/FLDURD/TP CRJ9/SK T031 B005
- Report
- a routine report filed through DAY
- Where
- over DAY
- Time
- 01:15 UTC
- Height
- during the descent
- Aircraft
- CRJ9
- Sky
- T031 B005
- BCS3 climbing, 7 nm north, 10:27 pm EDT (02:27 UTC): a routine report with nothing remarked on. 189 nm along the route, 7 nm north of the line.
as filed, and in English
CMH UA /OV CMH/TM 0227/FLDURC/TP BCS3/SK B010
- Report
- a routine report filed through CMH
- Where
- over CMH
- Time
- 02:27 UTC
- Height
- during the climb
- Aircraft
- BCS3
- Sky
- B010
- BCS3 at 25,000 ft, 13 nm south, 8:58 pm EDT (00:58 UTC): light turbulence, no icing, remarks: during the climb. 258 nm along the route, 13 nm south of the line.
as filed, and in English
PKB UA /OV JPU/TM 0058/FL250/TP BCS3/TB LGT/IC NEG/RM DURC
- Report
- a routine report filed through PKB
- Where
- over JPU
- Time
- 00:58 UTC
- Height
- at 25,000 ft
- Aircraft
- BCS3
- Turbulence
- light
- Icing
- none
- Remarks
- during the climb
- FA8X climbing, 4 nm east, 8:34 pm EDT (00:34 UTC): overcast above 1,000 ft. 437 nm along the route, 4 nm east of the line.
as filed, and in English
IAD UA /OV AML300005/TM 0034/FLDURC/TP FA8X/SK OVC010
- Report
- a routine report filed through IAD
- Where
- 5 nm northwest (300°) of AML
- Time
- 00:34 UTC
- Height
- during the climb
- Aircraft
- FA8X
- Sky
- overcast from 1,000 ft
- B712 descending, 26 nm northeast, 11:10 pm EDT (03:10 UTC): remarks: light rain light chop bases 50,000 ft ft. At the destination end, 26 nm northeast of the line.
as filed, and in English
BWI UA /OV RWY 15R/TM 0310/FLDURD/TP B712/RM LIGHT RAIN. LIGHT CHOP. BASES 500 FT
- Report
- a routine report filed through BWI
- Where
- runway 15R
- Time
- 03:10 UTC
- Height
- during the descent
- Aircraft
- B712
- Remarks
- light rain light chop bases 50,000 ft ft
- A320 at 2,000 ft, 23 nm northeast, 9:46 pm EDT (01:46 UTC): a broken layer from 30,000 ft to 4,500 ft, remarks: CONLE5 sid. At the destination end, 23 nm northeast of the line.
as filed, and in English
BWI UA /OV BAL180005/TM 0146/FL020/TP A320/SK BKN003-TOP045/RM CONLE5 SID
- Report
- a routine report filed through BWI
- Where
- 5 nm south (180°) of BAL
- Time
- 01:46 UTC
- Height
- at 2,000 ft
- Aircraft
- A320
- Sky
- a broken layer from 300 ft, tops 4,500 ft
- Remarks
- CONLE5 sid
- B738 at 2,000 ft, 23 nm northeast, 9:43 pm EDT (01:43 UTC): a broken layer from 40,000 ft to 7,200 ft, remarks: TERPZ8 sid. At the destination end, 23 nm northeast of the line.
as filed, and in English
BWI UA /OV BAL260003/TM 0143/FL20/TP B738/SK BKN004-TOP072/RM TERPZ8 SID
- Report
- a routine report filed through BWI
- Where
- 3 nm west (260°) of BAL
- Time
- 01:43 UTC
- Height
- at 2,000 ft
- Aircraft
- B738
- Sky
- a broken layer from 400 ft, tops 7,200 ft
- Remarks
- TERPZ8 sid
- B38M at 400 ft, 0 nm north, 9:15 pm EDT (01:15 UTC): overcast above 40,000 ft. At the destination end, 0 nm north of the line.
as filed, and in English
DCA UA /OV DCA/TM 0115/FL004/TP B38M/SK OVC004
- Report
- a routine report filed through DCA
- Where
- over DCA
- Time
- 01:15 UTC
- Height
- at 400 ft
- Aircraft
- B38M
- Sky
- overcast from 400 ft
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 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 6 forecast points nearest it (IND, 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 | 320° at 15 kt | −12 kt | 132 kt | 3 h 32 min | 3:05 am EDT (07:05 UTC) | |
| 5,500 ft | 330° at 20 kt | −14 kt | 12 °C | 134 kt | 3 h 29 min | 3:02 am EDT (07:02 UTC) |
| 7,500 ft | 330° at 21 kt | −14 kt | 11 °C | 134 kt | 3 h 29 min | 3:02 am EDT (07:02 UTC) |
| 9,500 ft | 330° at 22 kt | −13 kt | 7 °C | 133 kt | 3 h 31 min | 3:04 am EDT (07:04 UTC) |
| 11,500 ft | 340° at 19 kt | −11 kt | 4 °C | 131 kt | 3 h 34 min | 3:07 am EDT (07:07 UTC) |
| 13,500 ft | 340° at 20 kt | −12 kt | 0 °C | 132 kt | 3 h 32 min | 3:05 am EDT (07:05 UTC) |
| 15,500 ft | 330° at 23 kt | −15 kt | -4 °C | 135 kt | 3 h 28 min | 3:01 am EDT (07:01 UTC) |
| 17,500 ft | 330° at 25 kt | −17 kt | -8 °C | 137 kt | 3 h 25 min | 2:58 am EDT (06:58 UTC) |
| 18,000 ft FL180 | 330° at 26 kt | −18 kt | -9 °C | 138 kt | 3 h 23 min | 2:56 am EDT (06:56 UTC) |
| 24,000 ft FL240 | 320° at 33 kt | −24 kt | -20 °C | 144 kt | 3 h 15 min | 2:48 am EDT (06:48 UTC) |
| 30,000 ft FL300 | 330° at 41 kt | −28 kt | -36 °C | 148 kt | 3 h 09 min | 2:42 am EDT (06:42 UTC) |
| 34,000 ft FL340 | 310° at 47 kt | −39 kt | -41 °C | 159 kt | 2 h 56 min | 2:29 am EDT (06:29 UTC) |
| 39,000 ft FL390 | 320° at 42 kt | −34 kt | -48 °C | 154 kt | 3 h 02 min | 2:35 am EDT (06:35 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| IND | used from 0 nm out; 38 nm from the line | 290/16 | 310/20 16° | 320/21 10° | 330/13 3° | 300/25 -7° | 320/32 -19° | 330/46 -34° | 320/61 -43° | 320/63 -50° |
| FWA | used from 50 nm out; 46 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
| CMH | used from 99 nm out; 63 nm from the line | 330/15 | 340/22 14° | 340/24 9° | 340/23 4° | 340/35 -9° | 340/49 -20° | 340/58 -37° | 330/70 -42° | 340/55 -47° |
| AGC | used from 248 nm out; 70 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° |
| EKN | used from 298 nm out; 33 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° | |
| RIC | used from 447 nm out; 83 nm from the line | 270/23 | 280/19 11° | 270/18 8° | 240/22 4° | 230/39 -7° | 220/55 -18° | 220/75 -30° | 230/83 -39° | 230/64 -50° |
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 |
|---|---|---|---|---|---|---|---|
| LAF Lafayette, IN | departure | VFR | calm | 10+ mi | none | 605 ft | 10:54 pm EDT (02:54 UTC) |
| GUS Peru, IN | 30 nm out, 20 nm north of the line, tower | VFR | from the southeast (140°) at 5 knots | 10+ mi | none | 810 ft | 02:55 UTC |
| MIE Muncie, IN | 70 nm out, 2 nm east of the line, tower | marginal VFR Weather: mist | calm | 3 mi | none | 937 ft | 03:00 UTC |
| DAY Dayton, OH | 129 nm out, 10 nm south of the line, tower | marginal VFR Sky: overcast at 1,200 feet | from the west-northwest (290°) at 7 knots | 8 mi | 1,200 ft | 1,009 ft | 02:56 UTC |
| TZR Columbus, OH | 179 nm out, 2 nm west of the line, tower | IFR Sky: a broken layer at 700 feet, overcast at 1,400 feet | from the west-northwest (300°) at 3 knots | 10+ mi | 700 ft | 904 ft | 03:15 UTC |
| LCK Columbus, OH | 189 nm out, 5 nm southwest of the line, tower | marginal VFR Sky: overcast at 1,000 feet | from the northwest (320°) at 4 knots | 10+ mi | 1,000 ft | 743 ft | 02:55 UTC |
| PKB Parkersburg, WV | 258 nm out, 19 nm south of the line, tower | low IFR Sky: overcast at 400 feet Weather: mist | from the northwest (310°) at 5 knots | 2.5 mi | 400 ft | 858 ft | 03:28 UTC |
| CKB Clarksburg, WV | 318 nm out, 9 nm southwest of the line, tower | marginal VFR Sky: a few clouds at 500 feet, a broken layer at 1,100 feet, overcast at 5,000 feet | from the west (280°) at 3 knots | 10+ mi | 1,100 ft | 1,223 ft | 03:12 UTC |
| MGW Morgantown, WV | 328 nm out, 14 nm north of the line, tower | IFR Sky: a broken layer at 600 feet, a broken layer at 1,300 feet, overcast at 5,500 feet Weather: light rain | calm | 10+ mi | 600 ft | 1,243 ft | 03:06 UTC |
| MRB Martinsburg, WV | 417 nm out, 21 nm north of the line, tower | IFR Sky: a broken layer at 500 feet, a broken layer at 1,000 feet, overcast at 2,700 feet Weather: light rain | from the north (010°) at 6 knots | 9 mi | 500 ft | 564 ft | 02:53 UTC |
| IAD Washington, DC | 447 nm out, 1 nm northwest of the line, tower | IFR Sky: overcast at 600 feet Weather: light rain | from the north-northwest (340°) at 10 knots | 10+ mi | 600 ft | 312 ft | 02:52 UTC |
| DCA Washington, DC | destination | IFR Sky: overcast at 500 feet Weather: light drizzle, mist | from the north-northeast (020°) at 7 knots | 5 mi | 500 ft | 14 ft | 10:52 pm EDT (02:52 UTC) |
The highest airport on this list sits at 1,243 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, 2:29 am EDT (06:29 UTC)
Wind from the north at 7 knots, visibility 4 miles, light rain showers, mist, overcast at 800 feet IFR
The whole forecast for DCA
- From Sun 11:00 pm EDT (03:00 UTC): wind from the north-northeast at 7 knots, visibility 5 miles, light 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 LAF, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind calm, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 20,000 feet
- From Mon 2:00 pm EDT (18:00 UTC): wind from the southwest at 11 knots, gusting to 19, visibility more than 6 miles, scattered clouds at 20,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, 447 nm along the route · a VIP movement · today · ZDC
- 4/9383 WASHINGTON, DC., USA on the route, at the destination end · security · ZDC
Daylight
Sunset at LAF 7:12 pm EDT (23:12 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: Purdue University Airport, Ronald Reagan Washington Ntl Airport.
