Billings Logan International to Washington Dulles International BIL → IAD
1,429 nautical miles (1,644 statute miles) east on a straight line, true course 096°, about 086° magnetic at the departure end (variation 10E). At 120 knots that is 8 h 24 min at the quickest height in today's winds (39,000 ft, a 50-knot tailwind), arriving about 7:22 pm EDT (23:22 UTC), after sunset at the destination. Right now BIL is VFR, wind from the southwest (230°) at 3 knots; IAD is marginal VFR, wind from the north-northwest (330°) at 14 knots, gusting to 24. 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 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 609 nm of the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the first 60 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 30 nm of the route.
- AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist). Over the route from 1129 to 1349 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 1259 to 1359 nm out.
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 1339 to 1419 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 BIL.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- C25A at 5,000 ft, 3 nm west, 7:00 am MDT (13:00 UTC): light rime icing, 4 °C, remarks: lt rime in the descent. At the departure end, 3 nm west of the line.
as filed, and in English
BIL UA /OV 100006/TM 1300/FL050/TP C25A/TA 4/IC LT RIME/RM LT RIME IN THE DESCENT
- Report
- a routine report filed through BIL
- Where
- wind from 100° at 6 knots
- Time
- 13:00 UTC
- Height
- at 5,000 ft
- Aircraft
- C25A
- Temperature
- 4 °C
- Icing
- lt rime
- Remarks
- lt rime in the descent
- BE9L at 15,000 ft, 44 nm south, 8:41 am MDT (14:41 UTC): light chop turbulence, remarks: zdvwc. 300 nm along the route, 44 nm south of the line.
as filed, and in English
PHP UA /OV PHP340020/TM 1441/FL150/TP BE9L/SK TOP 155 BKN/TB OCNL LGT CHOP/RM -ZDVWC
- Report
- a routine report filed through PHP
- Where
- 20 nm north (340°) of PHP
- Time
- 14:41 UTC
- Height
- at 15,000 ft
- Aircraft
- BE9L
- Sky
- top 15,500 ft broken
- Turbulence
- occasional light chop
- Remarks
- zdvwc
- BE9L at 15,000 ft, 31 nm south, 8:53 am MDT (14:53 UTC): no turbulence, no icing. 320 nm along the route, 31 nm south of the line.
as filed, and in English
PIR UA /OV PIR270040/TM 1453/FL150/TP BE9L/TB NEG/IC NEG
- Report
- a routine report filed through PIR
- Where
- 40 nm west (270°) of PIR
- Time
- 14:53 UTC
- Height
- at 15,000 ft
- Aircraft
- BE9L
- Turbulence
- none
- Icing
- none
- A321 at 35,000 ft, 35 nm north, 7:38 am MDT (13:38 UTC): no turbulence. 340 nm along the route, 35 nm north of the line.
as filed, and in English
MBG UA /OV MBG/TM 1338/FL350/TP A321/SK TOP310/TB NEG
- Report
- a routine report filed through MBG
- Where
- over MBG
- Time
- 13:38 UTC
- Height
- at 35,000 ft
- Aircraft
- A321
- Sky
- TOP310
- Turbulence
- none
- SF50 at 4,000 ft, 31 nm south, 7:47 am MDT (13:47 UTC): no turbulence, no icing. 360 nm along the route, 31 nm south of the line.
as filed, and in English
PIR UA /OV PIR/TM 1347/FL040/TP SF50/SK BASE008-TOP040/TB NEG/IC NEG
- Report
- a routine report filed through PIR
- Where
- over PIR
- Time
- 13:47 UTC
- Height
- at 4,000 ft
- Aircraft
- SF50
- Sky
- BASE008-TOP040
- Turbulence
- none
- Icing
- none
- C25A at 7,500 ft, 32 nm north, 6:31 am MDT (12:31 UTC): no turbulence, no icing, remarks: during the climb. 480 nm along the route, 32 nm north of the line.
as filed, and in English
ATY UA /OV ATY/TM 1231/FL075/TP C25A/SK BASEUNKN/TB NEG/IC NEG/RM DURC
- Report
- a routine report filed through ATY
- Where
- over ATY
- Time
- 12:31 UTC
- Height
- at 7,500 ft
- Aircraft
- C25A
- Sky
- baseunkn
- Turbulence
- none
- Icing
- none
- Remarks
- during the climb
- UAL1095 at 36,000 ft, 43 nm south, 7:00 am MDT (13:00 UTC): no turbulence, -41 °C, wind 253° at 52 knots. 520 nm along the route, 43 nm south of the line.
as filed, and in English
ARP UAL1095 4338N 09646W 1300 F360 MS41 253/052KT TB NONE SK CLEAR IC
- Report
- a routine report filed through ARP
- SF50 at 13,000 ft, 24 nm northeast, 7:36 am MDT (13:36 UTC): no turbulence, no icing, clear from 13,000 ft to 60,000 ft. 569 nm along the route, 24 nm northeast of the line.
as filed, and in English
RWF UA /OV RWF/TM 1336/FL130/TP SF50/SK SKC/TB NEG/IC NEG
- Report
- a routine report filed through RWF
- Where
- over RWF
- Time
- 13:36 UTC
- Height
- at 13,000 ft
- Aircraft
- SF50
- Sky
- clear
- Turbulence
- none
- Icing
- none
- BE36 at 6,000 ft, 17 nm southwest, 7:12 am MDT (13:12 UTC): no turbulence. 619 nm along the route, 17 nm southwest of the line.
as filed, and in English
FRM UA /OV FRM/TM 1312/FL060/TP BE36/TB NEG
- Report
- a routine report filed through FRM
- Where
- over FRM
- Time
- 13:12 UTC
- Height
- at 6,000 ft
- Aircraft
- BE36
- Turbulence
- none
- B752 at 34,000 ft, 35 nm south, 6:23 am MDT (12:23 UTC): light chop turbulence. 769 nm along the route, 35 nm south of the line.
as filed, and in English
DBQ UA /OV DBQ300020/TM 1223/FL340/TP B752/TB OCNL LGT CHOP
- Report
- a routine report filed through DBQ
- Where
- 20 nm northwest (300°) of DBQ
- Time
- 12:23 UTC
- Height
- at 34,000 ft
- Aircraft
- B752
- Turbulence
- occasional light chop
- C510 at 17,000 ft, 13 nm north, 7:27 am MDT (13:27 UTC): no turbulence. 799 nm along the route, 13 nm north of the line.
as filed, and in English
LNR UA /OV LNR/TM 1327/FL170/TP C510/TB NEG
- Report
- a routine report filed through LNR
- Where
- over LNR
- Time
- 13:27 UTC
- Height
- at 17,000 ft
- Aircraft
- C510
- Turbulence
- none
- PC12 at 20,000 ft, 13 nm north, 7:27 am MDT (13:27 UTC): no turbulence. 799 nm along the route, 13 nm north of the line.
as filed, and in English
LNR UA /OV 0WI4/TM 1327/FL200/TP PC12/TB NEG
- Report
- a routine report filed through LNR
- Where
- over 0WI4
- Time
- 13:27 UTC
- Height
- at 20,000 ft
- Aircraft
- PC12
- Turbulence
- none
- B39M at 36,000 ft, 11 nm south, 7:18 am MDT (13:18 UTC): no turbulence. 909 nm along the route, 11 nm south of the line.
as filed, and in English
PWK UA /OV OBK/TM 1318/FL360/TP B39M/TB NEG
- Report
- a routine report filed through PWK
- Where
- over OBK
- Time
- 13:18 UTC
- Height
- at 36,000 ft
- Aircraft
- B39M
- Turbulence
- none
- B39M at 34,000 ft, 37 nm northeast, 8:01 am MDT (14:01 UTC): no turbulence. 949 nm along the route, 37 nm northeast of the line.
as filed, and in English
BIV UA /OV PMM300030/TM 1401/FL340/TP B39M/TB NEG
- Report
- a routine report filed through BIV
- Where
- 30 nm northwest (300°) of PMM
- Time
- 14:01 UTC
- Height
- at 34,000 ft
- Aircraft
- B39M
- Turbulence
- none
16 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 14:00–21:00 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 17 forecast points nearest it (BIL, MLS, RAP, PIR, ABR, FSD, MCW, LSE, DBQ, JOT, MKG, FWA, CMH, CLE, 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 | 250° at 16 kt | −13 kt | 133 kt | 10 h 45 min | 9:43 pm EDT (01:43 UTC) | |
| 5,500 ft | 260° at 14 kt | −13 kt | 5 °C | 133 kt | 10 h 45 min | 9:43 pm EDT (01:43 UTC) |
| 7,500 ft | 260° at 17 kt | −15 kt | 11 °C | 135 kt | 10 h 35 min | 9:33 pm EDT (01:33 UTC) |
| 9,500 ft | 260° at 20 kt | −19 kt | 8 °C | 139 kt | 10 h 17 min | 9:15 pm EDT (01:15 UTC) |
| 11,500 ft | 270° at 22 kt | −21 kt | 5 °C | 141 kt | 10 h 08 min | 9:06 pm EDT (01:06 UTC) |
| 13,500 ft | 260° at 23 kt | −23 kt | 1 °C | 143 kt | 10 h | 8:58 pm EDT (00:58 UTC) |
| 15,500 ft | 260° at 25 kt | −24 kt | -4 °C | 144 kt | 9 h 55 min | 8:53 pm EDT (00:53 UTC) |
| 17,500 ft | 260° at 26 kt | −25 kt | -9 °C | 145 kt | 9 h 51 min | 8:49 pm EDT (00:49 UTC) |
| 18,000 ft FL180 | 260° at 27 kt | −25 kt | -10 °C | 145 kt | 9 h 51 min | 8:49 pm EDT (00:49 UTC) |
| 24,000 ft FL240 | 260° at 34 kt | −31 kt | -22 °C | 151 kt | 9 h 28 min | 8:26 pm EDT (00:26 UTC) |
| 30,000 ft FL300 | 260° at 41 kt | −38 kt | -35 °C | 158 kt | 9 h 03 min | 8:01 pm EDT (00:01 UTC) |
| 34,000 ft FL340 | 270° at 46 kt | −45 kt | -39 °C | 165 kt | 8 h 40 min | 7:38 pm EDT (23:38 UTC) |
| 39,000 ft FL390 | 270° at 49 kt | −50 kt | -46 °C | 170 kt | 8 h 24 min | 7:22 pm EDT (23:22 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| BIL | used from 0 nm out; 25 nm from the line | L/V | 250/11 -1° | 240/20 -2° | 230/28 -15° | 220/28 -28° | 220/53 -34° | 220/55 -39° | 220/63 -44° | |
| MLS | used from 50 nm out; 58 nm from the line | 320/9 -2° | 270/14 0° | 260/22 -1° | 220/30 -14° | 210/43 -26° | 230/53 -34° | 230/54 -38° | 230/59 -44° | |
| RAP | used from 200 nm out; 77 nm from the line | 310/18 6° | 270/15 6° | 260/20 2° | 240/28 -11° | 240/42 -23° | 240/47 -35° | 230/47 -36° | 240/56 -44° | |
| PIR | used from 300 nm out; 47 nm from the line | 300/15 10° | 270/10 10° | 220/18 4° | 220/36 -11° | 230/43 -21° | 240/48 -33° | 240/51 -37° | 240/55 -44° | |
| ABR | used from 400 nm out; 47 nm from the line | 020/9 | 230/5 12° | 190/14 11° | 200/25 5° | 230/37 -11° | 230/50 -23° | 240/39 -34° | 240/49 -38° | 240/55 -46° |
| FSD | used from 450 nm out; 63 nm from the line | 260/9 | 210/16 18° | 220/27 14° | 230/28 6° | 240/39 -9° | 240/48 -22° | 260/52 -32° | 260/61 -38° | 260/60 -46° |
| MCW | used from 599 nm out; 54 nm from the line | 220/19 | 210/29 20° | 230/35 13° | 250/35 5° | 250/33 -9° | 260/44 -21° | 260/46 -33° | 270/58 -37° | 270/59 -46° |
| LSE | used from 699 nm out; 41 nm from the line | 240/16 | 230/27 20° | 250/35 12° | 260/28 5° | 260/30 -9° | 260/37 -21° | 260/38 -36° | 280/44 -37° | 280/52 -47° |
| DBQ | used from 749 nm out; 44 nm from the line | 250/26 | 240/32 19° | 250/35 11° | 260/37 5° | 270/35 -9° | 270/40 -21° | 270/43 -35° | 280/49 -37° | 280/58 -46° |
| JOT | used from 849 nm out; 69 nm from the line | 230/30 | 250/26 16° | 270/27 11° | 280/34 5° | 290/32 -8° | 280/37 -21° | 280/40 -36° | 290/46 -37° | 290/56 -47° |
| MKG | used from 949 nm out; 70 nm from the line | 240/27 | 240/26 15° | 270/27 9° | 280/27 5° | 280/28 -9° | 280/32 -22° | 270/41 -38° | 290/44 -41° | 300/60 -48° |
| FWA | used from 999 nm out; 47 nm from the line | 250/18 | 260/22 15° | 260/27 7° | 290/26 6° | 290/28 -8° | 290/39 -20° | 280/36 -37° | 290/54 -39° | 310/60 -48° |
| CMH | used from 1099 nm out; 71 nm from the line | 270/15 | 280/20 14° | 280/21 9° | 290/26 4° | 290/29 -7° | 290/38 -20° | 280/44 -35° | 280/48 -42° | 310/61 -48° |
| CLE | used from 1149 nm out; 48 nm from the line | 280/17 | 270/17 14° | 280/22 10° | 290/26 4° | 290/25 -8° | 280/31 -21° | 280/35 -36° | 280/43 -44° | 300/53 -48° |
| AGC | used from 1249 nm out; 30 nm from the line | 270/15 | 320/17 14° | 320/22 9° | 340/23 4° | 310/25 -8° | 290/30 -19° | 280/40 -36° | 290/49 -45° | 300/53 -49° |
| EKN | used from 1349 nm out; 68 nm from the line | 320/20 15° | 340/24 10° | 340/25 4° | 310/28 -7° | 290/32 -19° | 290/36 -36° | 300/49 -43° | 310/48 -50° | |
| RIC | used from 1399 nm out; 95 nm from the line | 350/24 | 350/28 14° | 340/25 8° | 340/26 5° | 340/40 -6° | 340/44 -19° | 340/48 -33° | 330/45 -42° | 310/38 -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 |
|---|---|---|---|---|---|---|---|
| BIL Billings, MT | departure | VFR Sky: a few clouds at 500 feet, a few clouds at 2,100 feet, scattered clouds at 3,700 feet | from the southwest (230°) at 3 knots | 10+ mi | none | 3,662 ft | 8:53 am MDT (14:53 UTC) |
| MKA Miller, SD | 410 nm out, 13 nm south of the line | no report just now | 1,569 ft | ||||
| TKC Tracy, MN | 559 nm out, 6 nm north of the line | low IFR Sky: overcast at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 1,335 ft | 14:35 UTC |
| RST Rochester, MN | 689 nm out, 22 nm north of the line, tower | VFR | from the south-southwest (200°) at 13 knots | 7 mi | none | 1,317 ft | 14:54 UTC |
| MSN Madison, WI | 839 nm out, 21 nm north of the line, tower | VFR Sky: a broken layer at 23,000 feet | from the south-southwest (200°) at 6 knots | 10+ mi | 23,000 ft | 886 ft | 13:53 UTC |
| UGN Chicago/Waukegan, IL | 909 nm out, 3 nm northeast of the line, tower | VFR | from the southwest (230°) at 12 knots | 10+ mi | none | 728 ft | 14:51 UTC |
| TOL Toledo, OH | 1099 nm out, 22 nm north of the line, tower | IFR Sky: a broken layer at 500 feet | from the south (190°) at 5 knots | 8 mi | 500 ft | 683 ft | 14:52 UTC |
| MFD Mansfield, OH | 1169 nm out, 3 nm northeast of the line, tower | IFR Sky: a broken layer at 600 feet | from the south-southwest (210°) at 7 knots | 10+ mi | 600 ft | 1,297 ft | 14:52 UTC |
| MGW Morgantown, WV | 1309 nm out, 13 nm southwest of the line, tower | IFR Sky: a broken layer at 600 feet, a broken layer at 1,000 feet, overcast at 2,700 feet Weather: mist | calm | 2.5 mi | 600 ft | 1,243 ft | 13:53 UTC |
| IAD Washington, DC | destination | marginal VFR Sky: a broken layer at 2,700 feet, a broken layer at 3,300 feet | from the north-northwest (330°) at 14 knots, gusting to 24 | 10+ mi | 2,700 ft | 312 ft | 10:52 am EDT (14:52 UTC) |
The highest airport on this list sits at 3,662 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, 7:22 pm EDT (23:22 UTC)
Wind from the northwest at 7 knots, visibility more than 6 miles, scattered clouds at 5,000 feet VFR
The whole forecast for IAD
- From Mon 11:00 am EDT (15:00 UTC): wind from the north-northwest at 14 knots, gusting to 21, visibility more than 6 miles, a broken layer at 2,500 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 BIL, the departure
- From Mon 6:00 am MDT (12:00 UTC): wind from the north-northwest at 8 knots, visibility more than 6 miles, light rain snow, a broken layer at 1,200 feet, overcast at 2,200 feet
- From Mon 1:00 pm MDT (19:00 UTC): wind light and variable, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 6:00 pm MDT (00:00 UTC): wind from the east at 9 knots, visibility 6 miles, light drizzle, mist, a few clouds at 300 feet, overcast at 1,800 feet
- From Mon 10:00 pm MDT (04:00 UTC): wind from the east at 9 knots, visibility 4 miles, light drizzle, mist, scattered clouds at 300 feet, overcast at 1,200 feet
- From Tue 3:00 am MDT (09:00 UTC): wind light and variable, visibility 3 miles, light rain, mist, scattered clouds at 300 feet, a broken layer at 1,200 feet and more above
Temporary flight restrictions on the line or within 25 nm of it
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 23 nm from the route, 1239 nm along the route · a VIP movement · today · ZOB
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 23 nm from the route, 1239 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 BIL 6:32 pm MDT (00:32 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 after sunset there (6:36 pm EDT (22:36 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: Billings Logan International, Washington Dulles International.
