Bishop International to Washington Dulles International FNT → IAD
373 nautical miles (429 statute miles) southeast on a straight line, true course 128°, about 134° magnetic at the departure end (variation 6W). At 120 knots that is 2 h 18 min at the quickest height in today's winds (34,000 ft, a 42-knot tailwind), arriving about 6:24 am EDT (10:24 UTC), after sunset at the destination. Right now FNT is low IFR, wind from the southwest (220°) at 5 knots; IAD is marginal VFR, wind from the northwest (320°) at 11 knots, gusting to 20. 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: 3 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 SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 206 to 344 nm out.
- AIRMET TANGO 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 10,000 ft. Over the last 39 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 FNT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- A333 descending, 25 nm southwest, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. 39 nm along the route, 25 nm southwest of the line.
as filed, and in English
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
- Report
- a routine report filed through DTW
- Where
- over DTW
- Time
- 05:44 UTC
- Height
- during the descent
- Aircraft
- A333
- Sky
- tops 2,500 ft
- B737 at 800 ft, 39 nm east, 3:30 am EDT (07:30 UTC): remarks: bases 800 ft. At the destination 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
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 4 forecast points nearest it (CLE, AGC, PSB, 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 | 340° at 10 kt | −9 kt | 129 kt | 2 h 53 min | 6:59 am EDT (10:59 UTC) | |
| 5,500 ft | 350° at 14 kt | −11 kt | 13 °C | 131 kt | 2 h 51 min | 6:57 am EDT (10:57 UTC) |
| 7,500 ft | 340° at 16 kt | −13 kt | 10 °C | 133 kt | 2 h 48 min | 6:54 am EDT (10:54 UTC) |
| 9,500 ft | 340° at 16 kt | −14 kt | 7 °C | 134 kt | 2 h 47 min | 6:53 am EDT (10:53 UTC) |
| 11,500 ft | 340° at 16 kt | −14 kt | 4 °C | 134 kt | 2 h 47 min | 6:53 am EDT (10:53 UTC) |
| 13,500 ft | 330° at 17 kt | −16 kt | 0 °C | 136 kt | 2 h 45 min | 6:51 am EDT (10:51 UTC) |
| 15,500 ft | 330° at 20 kt | −18 kt | -5 °C | 138 kt | 2 h 42 min | 6:48 am EDT (10:48 UTC) |
| 17,500 ft | 330° at 22 kt | −20 kt | -9 °C | 140 kt | 2 h 40 min | 6:46 am EDT (10:46 UTC) |
| 18,000 ft FL180 | 330° at 22 kt | −21 kt | -10 °C | 141 kt | 2 h 39 min | 6:45 am EDT (10:45 UTC) |
| 24,000 ft FL240 | 330° at 30 kt | −29 kt | -21 °C | 149 kt | 2 h 30 min | 6:36 am EDT (10:36 UTC) |
| 30,000 ft FL300 | 320° at 36 kt | −35 kt | -36 °C | 155 kt | 2 h 24 min | 6:30 am EDT (10:30 UTC) |
| 34,000 ft FL340 | 310° at 43 kt | −42 kt | -42 °C | 162 kt | 2 h 18 min | 6:24 am EDT (10:24 UTC) |
| 39,000 ft FL390 | 320° at 43 kt | −42 kt | -48 °C | 162 kt | 2 h 18 min | 6:24 am EDT (10:24 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| CLE | used from 0 nm out; 102 nm from the line | 340/7 | 010/16 13° | 350/18 8° | 350/20 3° | 340/31 -10° | 340/46 -21° | 340/54 -37° | 330/62 -44° | 340/65 -49° |
| AGC | used from 196 nm out; 16 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° |
| PSB | used from 295 nm out; 81 nm from the line | 360/13 13° | 330/14 7° | 300/11 3° | 290/12 -11° | 240/23 -23° | 270/25 -36° | 250/34 -40° | 250/45 -48° | |
| RIC | used from 344 nm out; 98 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 |
|---|---|---|---|---|---|---|---|
| FNT Flint, MI | departure | low IFR Sky: overcast at 300 feet | from the southwest (220°) at 5 knots | 8 mi | 300 ft | 782 ft | 3:53 am EDT (07:53 UTC) |
| PTK Pontiac, MI | 20 nm out, 6 nm south of the line, tower | low IFR Sky: overcast at 400 feet | from the west (260°) at 5 knots | 10+ mi | 400 ft | 980 ft | 07:53 UTC |
| DET Detroit, MI | 49 nm out, 7 nm southwest of the line, tower | marginal VFR Sky: overcast at 1,000 feet | from the west (260°) at 4 knots | 10+ mi | 1,000 ft | 624 ft | 07:53 UTC |
| CGF Cleveland, OH | 128 nm out, 4 nm south of the line, tower | marginal VFR Sky: overcast at 3,000 feet | calm | 10+ mi | 3,000 ft | 876 ft | 02:46 UTC |
| BVI Beaver Falls, PA | 196 nm out, 8 nm south of the line, tower | reported, no category | calm | none | 1,252 ft | 19:47 UTC | |
| AGC Pittsburgh, PA | 236 nm out, 13 nm southwest of the line, tower | low IFR Sky: overcast at 300 feet Weather: mist | from the northwest (320°) at 7 knots | 3 mi | 300 ft | 1,251 ft | 07:53 UTC |
| LBE Latrobe, PA | 255 nm out, 3 nm northwest of the line, tower | IFR Sky: a broken layer at 700 feet, overcast at 1,100 feet Weather: mist | calm | 2 mi | 700 ft | 1,198 ft | 07:55 UTC |
| CBE Cumberland, MD | 304 nm out, 11 nm southwest of the line | marginal VFR Sky: overcast at 2,200 feet | calm | 10+ mi | 2,200 ft | 757 ft | 07:55 UTC |
| MRB Martinsburg, WV | 334 nm out, 5 nm east of the line, tower | marginal VFR Sky: a broken layer at 1,300 feet, overcast at 2,700 feet | from the north (010°) at 4 knots | 10+ mi | 1,300 ft | 564 ft | 07:53 UTC |
| IAD Washington, DC | destination | marginal VFR Sky: scattered clouds at 1,000 feet, a broken layer at 1,500 feet, overcast at 3,000 feet Weather: light rain, mist | from the northwest (320°) at 11 knots, gusting to 20 | 4 mi | 1,500 ft | 312 ft | 3:52 am EDT (07:52 UTC) |
The highest airport on this list sits at 1,252 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, 6:24 am EDT (10:24 UTC)
Wind from the north-northwest at 12 knots, visibility 5 miles, light rain, mist, overcast at 600 feet IFR
The whole forecast for IAD
- From Mon 2:00 am EDT (06:00 UTC): wind from the north-northwest at 12 knots, visibility 5 miles, light rain, mist, overcast at 600 feet
- 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
The forecast for FNT, the departure
- From Mon 3:00 am EDT (07:00 UTC): wind from the south-southwest at 3 knots, visibility more than 6 miles, a broken layer at 400 feet
- From Mon 4:00 am EDT (08:00 UTC): wind from the south-southwest at 3 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
- At times between Mon 6:00 am EDT (10:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 4 miles, mist, a broken layer at 500 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, a broken layer at 25,000 feet
- From Mon 12:00 pm EDT (16:00 UTC): wind from the southwest at 12 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 25,000 feet
- From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 9,000 feet, a broken layer at 20,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 147 nm along the route · a VIP movement · today · ZOB
- 6/8888 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 6 nm from the route, 167 nm along the route · security · today · ZOB
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, 167 nm along the route · a VIP movement · today · ZOB
- 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 FNT 6:57 pm EDT (22:57 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: Bishop International, Washington Dulles International.