John Glenn Columbus International to Washington Dulles International CMH → IAD
259 nautical miles (299 statute miles) east on a straight line, true course 102°, about 109° magnetic at the departure end (variation 7W). At 120 knots that is 1 h 37 min at the quickest height in today's winds (34,000 ft, a 40-knot tailwind), arriving about 9:15 am EDT (13:15 UTC). Right now CMH is IFR, wind calm; IAD is VFR, wind from the north-northwest (330°) at 10 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: 2,937 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 whole route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 90 to 220 nm out.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 33,000 ft. Over the last 130 nm of the route.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the last 100 nm of the route.
- 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, at the destination end.
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 CMH.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- C550 at 1,500 ft, 10 nm northwest, 7:25 am EDT (11:25 UTC): overcast above 1,600 ft, remarks: during the descent. At the departure end, 10 nm northwest of the line.
as filed, and in English
CMH UA /OV OSU/TM 1125/FL015/TP C550/SK OVC016/RM DURD
- Report
- a routine report filed through CMH
- Where
- over OSU
- Time
- 11:25 UTC
- Height
- at 1,500 ft
- Aircraft
- C550
- Sky
- overcast from 1,600 ft
- Remarks
- during the descent
- C680 descending, 8 nm northwest, 7:22 am EDT (11:22 UTC): a routine report with nothing remarked on. At the departure end, 8 nm northwest of the line.
as filed, and in English
OSU UA /OV OSU090002/TM 1122/FLDURD/TP C680/SK B016
- Report
- a routine report filed through OSU
- Where
- 2 nm east (090°) of OSU
- Time
- 11:22 UTC
- Height
- during the descent
- Aircraft
- C680
- Sky
- B016
- CL35 climbing, 12 nm northwest, 7:00 am EDT (11:00 UTC): a routine report with nothing remarked on. At the departure end, 12 nm northwest of the line.
as filed, and in English
OSU UA /OV OSU270003/TM 1100/FLDURC/TP CL35/SK B016
- Report
- a routine report filed through OSU
- Where
- 3 nm west (270°) of OSU
- Time
- 11:00 UTC
- Height
- during the climb
- Aircraft
- CL35
- Sky
- B016
- E170 at 6,000 ft, 0 nm southwest, 6:00 am EDT (10:00 UTC): remarks: during the climb. At the departure end, 0 nm southwest of the line.
as filed, and in English
CMH UA /OV CMH/TM 1000/FL060/TP E170/SK B008-TOP031/RM DURC
- Report
- a routine report filed through CMH
- Where
- over CMH
- Time
- 10:00 UTC
- Height
- at 6,000 ft
- Aircraft
- E170
- Sky
- B008-TOP031
- Remarks
- during the climb
- B737 at 39,000 ft, 12 nm north, 4:40 am EDT (08:40 UTC): light chop turbulence. At the departure end, 12 nm north of the line.
as filed, and in English
CMH UA /OV APE/TM 0840/FL390/TP B737/TB CONS LGT CHOP 390 NEG 350-330
- Report
- a routine report filed through CMH
- Where
- over APE
- Time
- 08:40 UTC
- Height
- at 39,000 ft
- Aircraft
- B737
- Turbulence
- continuous light chop at 39,000 ft no from 35,000 ft to 33,000 ft
- E75L at 21,000 ft, 8 nm north, 6:23 am EDT (10:23 UTC): clear from 21,000 ft to 60,000 ft. 50 nm along the route, 8 nm north of the line.
as filed, and in English
ZZV UA /OV ZZV/TM 1023/FL210/TP E75L/SK SKC
- Report
- a routine report filed through ZZV
- Where
- over ZZV
- Time
- 10:23 UTC
- Height
- at 21,000 ft
- Aircraft
- E75L
- Sky
- clear
- SR22 , 24 nm south, 6:30 am EDT (10:30 UTC): no icing. 70 nm along the route, 24 nm south of the line.
as filed, and in English
PKB UA /OV PKB/TM 1030/FL000/TP SR22/SK TOP 045 BASE 004/IC NEG
- Report
- a routine report filed through PKB
- Where
- over PKB
- Time
- 10:30 UTC
- Height
- at 0 ft
- Aircraft
- SR22
- Sky
- top 4,500 ft base 400 ft
- Icing
- none
- E170 at 1,000 ft, 20 nm east, 7:32 am EDT (11:32 UTC): a broken layer above 1,200 ft. At the destination end, 20 nm east of the line.
as filed, and in English
DCA UA /OV DCA/TM 1132/FL010/TP E170/SK BKN012
- Report
- a routine report filed through DCA
- Where
- over DCA
- Time
- 11:32 UTC
- Height
- at 1,000 ft
- Aircraft
- E170
- Sky
- a broken layer from 1,200 ft
- B39M at 1,200 ft, 39 nm east, 7:10 am EDT (11:10 UTC): remarks: base 1200FT tops 2000FT. At the destination end, 39 nm east of the line.
as filed, and in English
BWI UA /OV BWI/TM 1110/FL012/TP B39M/RM BASE 1200FT TOPS 2000FT
- Report
- a routine report filed through BWI
- Where
- over BWI
- Time
- 11:10 UTC
- Height
- at 1,200 ft
- Aircraft
- B39M
- Remarks
- base 1200FT tops 2000FT
- B39M descending, 0 nm northeast, 6:42 am EDT (10:42 UTC): overcast above 4,000 ft. At the destination end, 0 nm northeast of the line.
as filed, and in English
IAD UA /OV RWY 1R/TM 1042/FLDURD/TP B39M/SK OVC 040/WX 10 SM
- Report
- a routine report filed through IAD
- Where
- runway 1R
- Time
- 10:42 UTC
- Height
- during the descent
- Aircraft
- B39M
- Sky
- overcast from 4,000 ft
- Weather
- 10, miles
- B737 at 700 ft, 39 nm east, 5:33 am EDT (09:33 UTC): remarks: light rain. At the destination 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
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 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 4 forecast points nearest it (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 |
|---|---|---|---|---|---|---|
| 5,500 ft | 330° at 19 kt | −12 kt | 10 °C | 132 kt | 1 h 58 min | 9:36 am EDT (13:36 UTC) |
| 7,500 ft | 340° at 23 kt | −12 kt | 9 °C | 132 kt | 1 h 58 min | 9:36 am EDT (13:36 UTC) |
| 9,500 ft | 350° at 27 kt | −12 kt | 6 °C | 132 kt | 1 h 58 min | 9:36 am EDT (13:36 UTC) |
| 11,500 ft | 340° at 29 kt | −17 kt | 3 °C | 137 kt | 1 h 53 min | 9:31 am EDT (13:31 UTC) |
| 13,500 ft | 340° at 32 kt | −20 kt | 0 °C | 140 kt | 1 h 51 min | 9:29 am EDT (13:29 UTC) |
| 15,500 ft | 340° at 36 kt | −22 kt | -4 °C | 142 kt | 1 h 49 min | 9:27 am EDT (13:27 UTC) |
| 17,500 ft | 340° at 39 kt | −24 kt | -7 °C | 144 kt | 1 h 48 min | 9:26 am EDT (13:26 UTC) |
| 18,000 ft FL180 | 340° at 40 kt | −25 kt | -8 °C | 145 kt | 1 h 47 min | 9:25 am EDT (13:25 UTC) |
| 24,000 ft FL240 | 340° at 45 kt | −23 kt | -21 °C | 143 kt | 1 h 49 min | 9:27 am EDT (13:27 UTC) |
| 30,000 ft FL300 | 350° at 56 kt | −26 kt | -35 °C | 146 kt | 1 h 46 min | 9:24 am EDT (13:24 UTC) |
| 34,000 ft FL340 | 340° at 65 kt | −40 kt | -41 °C | 160 kt | 1 h 37 min | 9:15 am EDT (13:15 UTC) |
| 39,000 ft FL390 | 330° at 46 kt | −32 kt | -50 °C | 152 kt | 1 h 42 min | 9:20 am EDT (13:20 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CMH | used from 0 nm out; 25 nm from the line | 320/12 | 340/26 15° | 340/22 9° | 320/24 3° | 320/32 -7° | 320/36 -20° | 330/42 -35° | 320/59 -44° | 320/57 -50° |
| AGC | used from 50 nm out; 74 nm from the line | 340/11 | 350/12 11° | 360/25 7° | 340/30 2° | 340/41 -8° | 340/44 -21° | 350/59 -36° | 340/68 -42° | 340/50 -51° |
| EKN | used from 100 nm out; 42 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° | |
| RIC | used from 250 nm out; 89 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° |
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 |
|---|---|---|---|---|---|---|---|
| CMH Columbus, OH | departure | IFR Sky: a broken layer at 700 feet, overcast at 1,200 feet | calm | 10+ mi | 700 ft | 815 ft | 6:51 am EDT (10:51 UTC) |
| VTA Newark, OH | 20 nm out, 6 nm north of the line | marginal VFR Sky: overcast at 1,200 feet | from the west (270°) at 3 knots | 9 mi | 1,200 ft | 883 ft | 10:54 UTC |
| PKB Parkersburg, WV | 70 nm out, 24 nm south of the line, tower | marginal VFR Sky: scattered clouds at 400 feet, a broken layer at 1,000 feet, overcast at 1,800 feet | from the west-southwest (250°) at 3 knots | 8 mi | 1,000 ft | 858 ft | 11:15 UTC |
| MPG Moundsville, WV | 100 nm out, 16 nm north of the line | no report just now | 1,214 ft | ||||
| MGW Morgantown, WV | 140 nm out, 11 nm north of the line, tower | low IFR Sky: a broken layer at 400 feet, a broken layer at 800 feet, overcast at 1,300 feet Weather: mist | from the northwest (310°) at 3 knots | 2 mi | 400 ft | 1,243 ft | 11:18 UTC |
| CBE Cumberland, MD | 190 nm out, 23 nm north of the line | marginal VFR Sky: a broken layer at 2,400 feet | from the north-northwest (330°) at 7 knots | 10+ mi | 2,400 ft | 757 ft | 11:15 UTC |
| MRB Martinsburg, WV | 230 nm out, 20 nm north of the line, tower | VFR Sky: scattered clouds at 2,400 feet, overcast at 3,200 feet | from the north-northeast (020°) at 3 knots | 10+ mi | 3,200 ft | 564 ft | 10:53 UTC |
| IAD Washington, DC | destination | VFR Sky: a few clouds at 1,800 feet, a broken layer at 4,400 feet Weather: mist | from the north-northwest (330°) at 10 knots | 6 mi | 4,400 ft | 312 ft | 6:52 am EDT (10:52 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 IAD when you get there the forecast at the estimated arrival, 9:15 am EDT (13:15 UTC)
Wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 2,000 feet, a broken layer at 3,500 feet marginal VFR
The whole forecast for IAD
- From Mon 8:00 am EDT (12:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility 6 miles, mist, scattered clouds at 1,800 feet, a broken layer at 4,500 feet
- From Mon 9:00 am EDT (13:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, a broken layer at 2,000 feet, a broken layer at 3,500 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 2,500 feet, a broken layer at 4,000 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, a broken layer at 4,500 feet
- From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 5,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 3 knots, visibility more than 6 miles, a few clouds at 5,000 feet
- From Tue 10:00 am EDT (14:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
The forecast for CMH, the departure
- From Mon 8:00 am EDT (12:00 UTC): wind from the west at 4 knots, visibility more than 6 miles, overcast at 1,200 feet
- At times between Mon 8:00 am EDT (12:00 UTC) and 10:00 am EDT (14:00 UTC): visibility 5 miles, mist, overcast at 800 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, a few clouds at 10,000 feet, scattered clouds at 25,000 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 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 CMH 6:56 pm EDT (22:56 UTC), at IAD 6:36 pm EDT (22:36 UTC) (civil twilight ends 7:02 pm EDT (23:02 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: John Glenn Columbus International, Washington Dulles International.
