Washington Dulles International to Tri-Cities Airport IAD → PSC
1,870 nautical miles (2,152 statute miles) northwest on a straight line, true course 297°, about 307° magnetic at the departure end (variation 10W). At 120 knots that is 15 h 35 min at the quickest height in today's winds (4,500 ft, no wind along the track), arriving about 9:36 am PDT (16:36 UTC). Right now IAD is IFR, wind from the north (350°) at 6 knots; PSC is VFR, wind from the northeast (040°) at 11 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: 5 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 first 110 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the first 150 nm of the route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 30 to 170 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 route from 220 to 330 nm out.
- 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 route from 1090 to 1700 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1210 to 1760 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1410 to 1840 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, 1450 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 14,000 ft. Over the last 200 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 IAD.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- E170 at 22,500 ft, 10 nm southwest, 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. At the departure end, 10 nm southwest 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
- UAL2761 at 31,000 ft, 31 nm south, 7:57 pm EDT (23:57 UTC): moderate turbulence, wind 218° at 58 knots. 110 nm along the route, 31 nm south 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
- A321 at 30,000 ft, 16 nm northeast, 7:49 pm EDT (23:49 UTC): moderate turbulence above 30,000 ft, remarks: zob. 110 nm along the route, 16 nm northeast of the line.
as filed, and in English
2G9 UA /OV IHD/TM 2349/FL300/TP A321/TB MOD 300/RM ZOB
- Report
- a routine report filed through 2G9
- Where
- over IHD
- Time
- 23:49 UTC
- Height
- at 30,000 ft
- Aircraft
- A321
- Turbulence
- moderate at 30,000 ft
- Remarks
- zob
- A320 at 33,000 ft, 35 nm north, 8:36 pm EDT (00:36 UTC): moderate turbulence above 33,000 ft, remarks: zob. 400 nm along the route, 35 nm north of the line.
as filed, and in English
JXN UA /OV JXN280030/TM 0036/FL330/TP A320/TB OCNL MOD 330/RM ZOB
- Report
- a routine report filed through JXN
- Where
- 30 nm west (280°) of JXN
- Time
- 00:36 UTC
- Height
- at 33,000 ft
- Aircraft
- A320
- Turbulence
- occasional moderate at 33,000 ft
- Remarks
- zob
- E75L at 14,000 ft, 16 nm north, 7:22 pm EDT (23:22 UTC): moderate turbulence from 14,000 ft to 21,000 ft, remarks: during the climb zlc. 1660 nm along the route, 16 nm north of the line.
as filed, and in English
MSO UA /OV 32S/TM 2322/FL140/TP E75L/TB MOD 140-210/RM DURC /ZLC
- Report
- a routine report filed through MSO
- Where
- over 32S
- Time
- 23:22 UTC
- Height
- at 14,000 ft
- Aircraft
- E75L
- Turbulence
- moderate from 14,000 ft to 21,000 ft
- Remarks
- during the climb zlc
- FA8X climbing, 5 nm west, 8:34 pm EDT (00:34 UTC): overcast above 1,000 ft. At the departure end, 5 nm west 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
- A320 descending, 20 nm east, 8:27 pm EDT (00:27 UTC): a routine report with nothing remarked on. At the departure end, 20 nm east of the line.
as filed, and in English
DCA UA /OV RWY 1 FINAL/TM 0027/FLDURD/TP A320/SK BASES 400 FT
- Report
- a routine report filed through DCA
- Where
- runway 1 final
- Time
- 00:27 UTC
- Height
- during the descent
- Aircraft
- A320
- Sky
- bases 40,000 ft ft
- A21N at 600 ft, 39 nm east, 8:23 pm EDT (00:23 UTC): a broken layer above 600 ft. At the departure end, 39 nm east of the line.
as filed, and in English
BWI UA /OV BWI/TM 0023/FL006/TP A21N/SK BKN006
- Report
- a routine report filed through BWI
- Where
- over BWI
- Time
- 00:23 UTC
- Height
- at 600 ft
- Aircraft
- A21N
- Sky
- a broken layer from 600 ft
- A319 descending, 20 nm east, 8:02 pm EDT (00:02 UTC): a routine report with nothing remarked on. At the departure end, 20 nm east of the line.
as filed, and in English
DCA UA /OV RWY 1 DEPARTURE/TM 0002/FLDURC/TP A319/SK BASES 500 FT
- Report
- a routine report filed through DCA
- Where
- runway 1 departure
- Time
- 00:02 UTC
- Height
- during the climb
- Aircraft
- A319
- Sky
- bases 50,000 ft ft
- B763 at 500 ft, 39 nm east, 7:50 pm EDT (23:50 UTC): a broken layer above 500 ft. At the departure end, 39 nm east of the line.
as filed, and in English
BWI UA /OV BWI/TM 2350/FL005/TP B763/SK BKN005
- Report
- a routine report filed through BWI
- Where
- over BWI
- Time
- 23:50 UTC
- Height
- at 500 ft
- Aircraft
- B763
- Sky
- a broken layer from 500 ft
- C17 at 500 ft, 29 nm east, 7:42 pm EDT (23:42 UTC): overcast above 500 ft. At the departure end, 29 nm east of the line.
as filed, and in English
KADW UA /OV RWY 1L ARR/TM 2342/FL005/TP C17/SK OVC005
- Report
- a routine report filed through KADW
- Where
- runway 1L arrival
- Time
- 23:42 UTC
- Height
- at 500 ft
- Aircraft
- C17
- Sky
- overcast from 500 ft
- B738 at 7,000 ft, 30 nm northeast, 7:40 pm EDT (23:40 UTC): overcast above 40,000 ft, remarks: top 6,500 ft. At the departure end, 30 nm northeast of the line.
as filed, and in English
BWI UA /OV BAL280010/TM 2340/FL070/TP B738/SK OVC004/RM TOP 065
- Report
- a routine report filed through BWI
- Where
- 10 nm west (280°) of BAL
- Time
- 23:40 UTC
- Height
- at 7,000 ft
- Aircraft
- B738
- Sky
- overcast from 400 ft
- Remarks
- top 6,500 ft
- CL60 at 500 ft, 14 nm south, 7:30 pm EDT (23:30 UTC): overcast above 500 ft, remarks: during the descent. At the departure end, 14 nm south of the line.
as filed, and in English
HEF UA /OV KHEF150001/TM 2330/FL005/TP CL60/SK OVC005/RM DURD
- Report
- a routine report filed through HEF
- Where
- 1 nm southeast (150°) of KHEF
- Time
- 23:30 UTC
- Height
- at 500 ft
- Aircraft
- CL60
- Sky
- overcast from 500 ft
- Remarks
- during the descent
- CL60 descending, 15 nm south, 7:30 pm EDT (23:30 UTC): overcast above 500 ft. At the departure end, 15 nm south of the line.
as filed, and in English
IAD UA /OV HEF160001/TM 2330/FLDURD/TP CL60/SK OVC 005
- Report
- a routine report filed through IAD
- Where
- 1 nm south (160°) of HEF
- Time
- 23:30 UTC
- Height
- during the descent
- Aircraft
- CL60
- Sky
- overcast from 500 ft
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 westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 21 forecast points nearest it (EKN, AGC, CLE, FWA, MKG, JOT, DBQ, LSE, MCW, MSP, FSD, ABR, PIR, RAP, DIK, MLS, BIL, GTF, DLN, LWS, YKM). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 200° at 1 kt | 0 | 11 °C | 120 kt | 15 h 35 min | 9:36 am PDT (16:36 UTC) |
| 6,500 ft | 280° at 3 kt | +3 kt | 12 °C | 117 kt | 15 h 59 min | 10:00 am PDT (17:00 UTC) |
| 8,500 ft | 250° at 4 kt | +3 kt | 7 °C | 117 kt | 15 h 59 min | 10:00 am PDT (17:00 UTC) |
| 10,500 ft | 230° at 7 kt | +5 kt | 4 °C | 115 kt | 16 h 16 min | 10:17 am PDT (17:17 UTC) |
| 12,500 ft | 230° at 10 kt | +7 kt | 1 °C | 113 kt | 16 h 33 min | 10:34 am PDT (17:34 UTC) |
| 14,500 ft | 230° at 13 kt | +10 kt | -4 °C | 110 kt | 17 h | 11:01 am PDT (18:01 UTC) |
| 16,500 ft | 240° at 17 kt | +13 kt | -8 °C | 107 kt | 17 h 29 min | 11:30 am PDT (18:30 UTC) |
| 18,000 ft FL180 | 240° at 19 kt | +15 kt | -11 °C | 105 kt | 17 h 49 min | 11:50 am PDT (18:50 UTC) |
| 24,000 ft FL240 | 240° at 29 kt | +23 kt | -22 °C | 97 kt | 19 h 17 min | 1:18 pm PDT (20:18 UTC) |
| 30,000 ft FL300 | 240° at 34 kt | +27 kt | -35 °C | 93 kt | 20 h 06 min | 2:07 pm PDT (21:07 UTC) |
| 34,000 ft FL340 | 250° at 43 kt | +37 kt | -42 °C | 83 kt | 22 h 32 min | 4:33 pm PDT (23:33 UTC) |
| 39,000 ft FL390 | 260° at 53 kt | +50 kt | -49 °C | 70 kt | 26 h 43 min | 8:44 pm PDT (03:44 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| EKN | used from 0 nm out; 91 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° | |
| AGC | used from 100 nm out; 29 nm from the line | 140/12 | 350/10 12° | L/V 9° | L/V 3° | 200/11 -11° | 220/21 -22° | 220/47 -33° | 230/51 -39° | 230/45 -48° |
| CLE | used from 200 nm out; 50 nm from the line | 340/5 | 320/13 14° | 300/12 8° | 310/10 2° | 310/14 -10° | 340/14 -23° | 320/27 -35° | 260/28 -40° | 250/36 -48° |
| FWA | used from 300 nm out; 63 nm from the line | 350/9 | 350/24 15° | 360/25 9° | 360/29 4° | 350/31 -10° | 340/39 -22° | 330/40 -37° | 320/38 -43° | 320/48 -48° |
| MKG | used from 450 nm out; 66 nm from the line | 250/5 | 320/10 15° | 310/19 9° | 320/21 3° | 310/23 -10° | 330/37 -22° | 330/51 -38° | 320/44 -47° | 300/60 -49° |
| JOT | used from 500 nm out; 59 nm from the line | 230/11 | 290/12 16° | 300/19 10° | 320/19 4° | 300/17 -9° | 330/31 -20° | 320/49 -37° | 320/53 -45° | 320/67 -49° |
| DBQ | used from 550 nm out; 76 nm from the line | 220/23 | 240/22 16° | 240/24 10° | 260/18 5° | 270/16 -8° | 290/27 -19° | 310/42 -35° | 320/55 -44° | 300/71 -52° |
| LSE | used from 650 nm out; 34 nm from the line | 220/33 | 250/29 17° | 250/15 9° | 260/12 6° | 280/21 -9° | 280/33 -20° | 300/43 -36° | 310/56 -45° | 300/79 -53° |
| MCW | used from 750 nm out; 40 nm from the line | 200/35 | 240/33 18° | 250/20 10° | 260/10 6° | 270/18 -8° | 260/28 -19° | 280/30 -34° | 290/49 -43° | 280/70 -54° |
| MSP | used from 800 nm out; 75 nm from the line | 200/28 | 240/30 19° | 240/24 12° | 240/17 5° | 270/24 -10° | 270/33 -20° | 280/48 -35° | 290/55 -45° | 280/84 -54° |
| FSD | used from 850 nm out; 63 nm from the line | 200/16 | 220/20 17° | 240/26 13° | 230/19 6° | 240/25 -9° | 240/28 -20° | 250/39 -33° | 250/44 -43° | 260/63 -52° |
| ABR | used from 950 nm out; 50 nm from the line | 030/24 | 220/5 16° | 230/18 12° | 230/32 5° | 240/38 -10° | 250/37 -20° | 240/40 -35° | 240/56 -44° | 250/72 -52° |
| PIR | used from 1050 nm out; 41 nm from the line | L/V 17° | 230/13 12° | 220/22 6° | 250/31 -9° | 250/34 -21° | 240/50 -35° | 230/61 -43° | 240/62 -51° | |
| RAP | used from 1150 nm out; 83 nm from the line | 120/15 12° | 180/22 11° | 220/26 5° | 230/35 -9° | 240/40 -22° | 240/50 -37° | 240/51 -41° | 240/47 -47° | |
| DIK | used from 1200 nm out; 85 nm from the line | 110/15 6° | 200/17 5° | 230/31 1° | 240/47 -10° | 240/52 -20° | 230/52 -36° | 240/57 -45° | 250/67 -51° | |
| MLS | used from 1250 nm out; 63 nm from the line | 120/22 5° | 170/18 4° | 200/33 1° | 230/49 -10° | 230/58 -21° | 220/54 -37° | 230/64 -44° | 250/74 -49° | |
| BIL | used from 1350 nm out; 55 nm from the line | 080/24 | 130/14 -1° | 180/33 0° | 210/43 -10° | 220/58 -21° | 200/55 -36° | 220/75 -44° | 240/83 -48° | |
| GTF | used from 1500 nm out; 85 nm from the line | 070/21 | 080/18 -6° | 120/5 -5° | 180/30 -14° | 200/53 -24° | 210/80 -38° | 220/83 -44° | 230/68 -46° | |
| DLN | used from 1550 nm out; 60 nm from the line | 080/10 -3° | 180/8 -3° | 180/23 -14° | 200/58 -22° | 200/80 -36° | 220/85 -41° | 230/81 -45° | ||
| LWS | used from 1700 nm out; 58 nm from the line | 010/5 | 050/14 -2° | 040/12 -6° | 160/7 -10° | 190/30 -22° | 200/54 -27° | 200/48 -35° | 210/40 -37° | 230/32 -41° |
| YKM | used from 1850 nm out; 71 nm from the line | 030/16 | 020/18 0° | 030/30 -8° | 030/23 -13° | 020/40 -23° | 010/73 -29° | 010/54 -36° | 360/29 -37° | 330/16 -40° |
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 |
|---|---|---|---|---|---|---|---|
| IAD Washington, DC | departure | IFR Sky: overcast at 600 feet Weather: light rain | from the north (350°) at 6 knots | 8 mi | 600 ft | 312 ft | 8:52 pm EDT (00:52 UTC) |
| HLG Wheeling, WV | 160 nm out, 5 nm northwest of the line, tower | marginal VFR Sky: overcast at 1,900 feet | from the northeast (050°) at 6 knots | 10+ mi | 1,900 ft | 1,194 ft | 00:53 UTC |
| MFD Mansfield, OH | 260 nm out, 1 nm east of the line, tower | low IFR Sky: overcast at 300 feet Weather: mist | from the north-northwest (330°) at 5 knots | 4 mi | 300 ft | 1,297 ft | 00:52 UTC |
| UGN Chicago/Waukegan, IL | 520 nm out, 3 nm southeast of the line, tower | VFR | from the south-southeast (150°) at 4 knots | 10+ mi | none | 728 ft | 00:51 UTC |
| JVL Janesville, WI | 570 nm out, 9 nm south of the line, tower | VFR Sky: scattered clouds at 25,000 feet | from the south (190°) at 6 knots | 10+ mi | none | 807 ft | 00:45 UTC |
| AUM Austin, MN | 750 nm out, 3 nm southwest of the line | VFR | from the south-southeast (160°) at 5 knots | 8 mi | none | 1,233 ft | 00:55 UTC |
| MKA Miller, SD | 1020 nm out, 20 nm south of the line | no report just now | 1,569 ft | ||||
| BIL Billings, MT | 1430 nm out, 11 nm south of the line, tower | IFR Sky: a broken layer at 800 feet, overcast at 1,200 feet Weather: light rain | from the north (010°) at 15 knots | 10+ mi | 800 ft | 3,662 ft | 00:53 UTC |
| BZN Bozeman, MT | 1540 nm out, 22 nm south of the line, tower | low IFR Sky: a broken layer at 200 feet, overcast at 1,100 feet Weather: light snow, mist | calm | 0.75 mi | 200 ft | 4,473 ft | 00:56 UTC |
| LWS Lewiston, ID | 1780 nm out, 6 nm northwest of the line, tower | VFR Sky: overcast at 6,000 feet | from the west (270°) at 6 knots | 10+ mi | 6,000 ft | 1,442 ft | 00:56 UTC |
| PSC Pasco, WA | destination | VFR Sky: overcast at 9,500 feet | from the northeast (040°) at 11 knots | 10+ mi | 9,500 ft | 410 ft | 5:53 pm PDT (00:53 UTC) |
The highest airport on this list sits at 4,473 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At PSC when you get there the forecast at the estimated arrival, 9:36 am PDT (16:36 UTC)
Wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet VFR
The whole forecast for PSC
- From Sun 5:00 pm PDT (00:00 UTC): wind from the north-northeast at 12 knots, gusting to 18, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 9,000 feet
- From Sun 6:00 pm PDT (01:00 UTC): wind from the north at 8 knots, visibility more than 6 miles, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
- From Mon 2:00 am PDT (09:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 10,000 feet
The forecast for IAD, the departure
- From Sun 8:00 pm EDT (00:00 UTC): wind from the north at 7 knots, visibility 4 miles, light rain showers, mist, overcast at 700 feet
- From Sun 10:00 pm EDT (02:00 UTC): wind from the north-northwest at 6 knots, visibility 2 miles, rain showers, mist, overcast at 400 feet
- From Mon 4:00 am EDT (08:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility 4 miles, light rain showers, mist, overcast at 600 feet
- From Mon 6:00 am EDT (10:00 UTC): wind from the north-northwest at 11 knots, gusting to 19, visibility more than 6 miles, overcast at 1,400 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, overcast at 2,100 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 4,000 feet
- From Mon 7:00 pm EDT (23:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, 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 departure end · security · ZDC
- 6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 4 nm from the route, at the departure end · a VIP movement · today · ZDC
- 6/8829 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 22 nm from the route, 190 nm along the route · a VIP movement · today · ZOB
- 6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 22 nm from the route, 190 nm along the route · a VIP movement · today · ZOB
Daylight
Sunset at IAD 6:36 pm EDT (22:36 UTC), at PSC 6:15 pm PDT (01:15 UTC) (civil twilight ends 6:45 pm PDT (01:45 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: Washington Dulles International, Tri-Cities Airport.
