Plan a flight · Mon 11:37 am EDT (15:37 UTC)

Ronald Reagan Washington Ntl Airport to Tri-Cities Airport DCA → PSC

1,890 nautical miles (2,175 statute miles) northwest on a straight line, true course 297°, about 308° magnetic at the departure end (variation 11W). At 120 knots that is 17 h 11 min at the quickest height in today's winds (4,500 ft, a 10-knot headwind), arriving about 1:48 am PDT (08:48 UTC), after sunset at the destination. Right now DCA is marginal VFR, wind from the north-northwest (340°) at 14 knots, gusting to 19; PSC is VFR, wind from the north (360°) at 3 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 C22C: thunderstorms (a convective SIGMET) up to 37,000 ft, moving from the southwest at 40 knots, until 12:55 pm EDT (16:55 UTC). Over the route from 1080 to 1080 nm out.
as issued
```
WSUS32 KKCI 121455
MKCC WST 121455
CONVECTIVE SIGMET 22C
VALID UNTIL 1655Z
SD ND
FROM 60W GFK-30WNW FAR-40NNE PIR-50NNE DPR-30NNW BIS-60W GFK
AREA TS MOV FROM 21040KT. TOPS TO FL370.
```
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 24,000 ft to 40,000 ft. Over the first 40 nm of the route.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the route from 30 to 110 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, mist). Over the route from 90 to 190 nm out.
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 100 to 320 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 830 to 1650 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1430 to 1860 nm out.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the last 300 nm of the route.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 270 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 DCA.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

B737 descending, 26 nm northeast, 11:00 am EDT (15:00 UTC): remarks: bases reported 2000 feet on final runway 33L. At the departure end, 26 nm northeast of the line.
as filed, and in English
```
BWI UA /OV FINAL/TM 1500/FLDURD/TP B737/RM BASES REPORTED 2000 FEET ON FINAL RWY 33L
```
Report
a routine report filed through BWI
Where
final
Time
15:00 UTC
Height
during the descent
Aircraft
B737
Remarks
bases reported 2000 feet on final runway 33L
EC35 at 1,400 ft, 45 nm east, 10:26 am EDT (14:26 UTC): overcast above 1,400 ft, 17 °C, wind 330° at 8 knots, remarks: during the descent pilot reported bases at at 1,400 ft. At the departure end, 45 nm east of the line.
as filed, and in English
```
ESN UA /OV ESN/TM 1426/FL014/TP EC35/SK OVC014/WX 10/TA 17/WV 33008/RM DURD PILOT REPORTED BASES AT 014
```
Report
a routine report filed through ESN
Where
over ESN
Time
14:26 UTC
Height
at 1,400 ft
Aircraft
EC35
Sky
overcast from 1,400 ft
Weather
10
Temperature
17 °C
Wind
from 330° at 8 knots
Remarks
during the descent pilot reported bases at at 1,400 ft
E75S at 2,400 ft, 0 nm north, 9:47 am EDT (13:47 UTC): overcast above 2,400 ft. At the departure end, 0 nm north of the line.
as filed, and in English
```
DCA UA /OV DCA19004/TM 1347/FL024/TP E75S/SK OVC024
```
Report
a routine report filed through DCA
Where
DCA19004
Time
13:47 UTC
Height
at 2,400 ft
Aircraft
E75S
Sky
overcast from 2,400 ft
B38M at 2,600 ft, 24 nm northeast, 9:05 am EDT (13:05 UTC): a broken layer above 2,400 ft, remarks: TOP026. At the departure end, 24 nm northeast of the line.
as filed, and in English
```
BWI UA /OV BAL270003/TM 1305/FL026/TP B38M/SK BKN024/RM TOP026
```
Report
a routine report filed through BWI
Where
3 nm west (270°) of BAL
Time
13:05 UTC
Height
at 2,600 ft
Aircraft
B38M
Sky
a broken layer from 2,400 ft
Remarks
TOP026
B737 at 1,000 ft, 3 nm south, 8:40 am EDT (12:40 UTC): light chop turbulence, remarks: no bases reported on final approach runway 1. At the departure end, 3 nm south of the line.
as filed, and in English
```
DCA UA /OV DCA190003/TM 1240/FL010/TP B737/TB LGT CHOP/RM NO BASES REPORTED ON FINAL APPROACH RWY1
```
Report
a routine report filed through DCA
Where
3 nm south (190°) of DCA
Time
12:40 UTC
Height
at 1,000 ft
Aircraft
B737
Turbulence
light chop
Remarks
no bases reported on final approach runway 1
B737 climbing, 7 nm northeast, 10:50 am EDT (14:50 UTC): a broken layer above 2,100 ft, remarks: base 2,100 ft tops 3,000 ft. At the departure end, 7 nm northeast of the line.
as filed, and in English
```
BWI UA /OV BAL270030/TM 1450/FLDURC/TP B737/SK BKN021/RM BASE 021 TOPS 030
```
Report
a routine report filed through BWI
Where
30 nm west (270°) of BAL
Time
14:50 UTC
Height
during the climb
Aircraft
B737
Sky
a broken layer from 2,100 ft
Remarks
base 2,100 ft tops 3,000 ft
E145 at 4,000 ft, 5 nm northeast, 10:03 am EDT (14:03 UTC): no turbulence, remarks: above tops. At the departure end, 5 nm northeast of the line.
as filed, and in English
```
IAD UA /OV AML050010/TM 1403/FL040/TP E145/TB NEG/RM ABV TOPS
```
Report
a routine report filed through IAD
Where
10 nm northeast (050°) of AML
Time
14:03 UTC
Height
at 4,000 ft
Aircraft
E145
Turbulence
none
Remarks
above tops
RV12 at 2,900 ft, 26 nm northeast, 11:25 am EDT (15:25 UTC): a broken layer above 2,900 ft. At the departure end, 26 nm northeast of the line.
as filed, and in English
```
FDK UA /OV 3 NE FDK/TM 1525/FL029/TP RV12/SK BKN029
```
Report
a routine report filed through FDK
Where
3 northeast fdk
Time
15:25 UTC
Height
at 2,900 ft
Aircraft
RV12
Sky
a broken layer from 2,900 ft
C170 at 1,500 ft, 23 nm northeast, 9:55 am EDT (13:55 UTC): overcast above 2,300 ft. At the departure end, 23 nm northeast of the line.
as filed, and in English
```
FDK UA /OV FDK/TM 1355/FL015/TP C170/SK OVC023
```
Report
a routine report filed through FDK
Where
over FDK
Time
13:55 UTC
Height
at 1,500 ft
Aircraft
C170
Sky
overcast from 2,300 ft
UAL1651 at 30,000 ft, 3 nm north, 11:14 am EDT (15:14 UTC): light chop turbulence, wind 261° at 39 knots. 90 nm along the route, 3 nm north of the line.
as filed, and in English
```
ARP UAL1651 3935N 07847W 1514 F300 261/039KT TB INTMT LGT CHOP IC
```
Report
a routine report filed through ARP
E75S at 30,000 ft, 29 nm northeast, 9:19 am EDT (13:19 UTC): light chop turbulence, remarks: zob. 110 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
LBE UA /OV IHD080025/TM 1319/FL300/TP E75S/TB OCNL LGT CHOP/RM ZOB
```
Report
a routine report filed through LBE
Where
25 nm east (080°) of IHD
Time
13:19 UTC
Height
at 30,000 ft
Aircraft
E75S
Turbulence
occasional light chop
Remarks
zob
PA46 at 1,500 ft, 27 nm northeast, 11:17 am EDT (15:17 UTC): a broken layer above 1,500 ft, remarks: during the descent ils runway 24 KLBE. 140 nm along the route, 27 nm northeast of the line.
as filed, and in English
```
LBE UA /OV KLBE/TM 1517/FL015/TP PA46/SK BKN015-TOPUNKN/RM DURD ILS RWY 24 KLBE
```
Report
a routine report filed through LBE
Where
over KLBE
Time
15:17 UTC
Height
at 1,500 ft
Aircraft
PA46
Sky
a broken layer from 1,500 ft, tops unknown
Remarks
during the descent ils runway 24 KLBE
C68A at 1,500 ft, 27 nm northeast, 10:47 am EDT (14:47 UTC): a broken layer above 1,500 ft, remarks: during the climb runway 24 lbe. 140 nm along the route, 27 nm northeast of the line.
as filed, and in English
```
LBE UA /OV KLBE/TM 1447/FL015/TP C68A/SK BKN015-TOPUNKN/RM DURC RWY 24 LBE
```
Report
a routine report filed through LBE
Where
over KLBE
Time
14:47 UTC
Height
at 1,500 ft
Aircraft
C68A
Sky
a broken layer from 1,500 ft, tops unknown
Remarks
during the climb runway 24 lbe
X25B at 1,700 ft, 27 nm northeast, 10:42 am EDT (14:42 UTC): a broken layer from 1,700 ft to 4,700 ft, remarks: during the descent ils runway 24 lbe. 140 nm along the route, 27 nm northeast of the line.
as filed, and in English
```
LBE UA /OV KLBE/TM 1442/FL017/TP X25B/SK BKN017-TOP047/RM DURD ILS RWY 24 LBE
```
Report
a routine report filed through LBE
Where
over KLBE
Time
14:42 UTC
Height
at 1,700 ft
Aircraft
X25B
Sky
a broken layer from 1,700 ft, tops 4,700 ft
Remarks
during the descent ils runway 24 lbe

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 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 19 forecast points nearest it (RIC, EKN, AGC, CLE, FWA, MKG, JOT, DBQ, LSE, MCW, FSD, ABR, PIR, RAP, DIK, MLS, BIL, DLN, LWS). 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	270° at 11 kt	+10 kt	4 °C	110 kt	17 h 11 min	1:48 am PDT (08:48 UTC)
6,500 ft	260° at 12 kt	+11 kt	10 °C	109 kt	17 h 20 min	1:57 am PDT (08:57 UTC)
8,500 ft	260° at 14 kt	+13 kt	7 °C	107 kt	17 h 40 min	2:17 am PDT (09:17 UTC)
10,500 ft	260° at 15 kt	+14 kt	3 °C	106 kt	17 h 50 min	2:27 am PDT (09:27 UTC)
12,500 ft	260° at 16 kt	+16 kt	0 °C	104 kt	18 h 10 min	2:47 am PDT (09:47 UTC)
14,500 ft	260° at 18 kt	+16 kt	-4 °C	104 kt	18 h 10 min	2:47 am PDT (09:47 UTC)
16,500 ft	250° at 19 kt	+17 kt	-9 °C	103 kt	18 h 21 min	2:58 am PDT (09:58 UTC)
18,000 ft FL180	250° at 20 kt	+18 kt	-12 °C	102 kt	18 h 32 min	3:09 am PDT (10:09 UTC)
24,000 ft FL240	250° at 27 kt	+23 kt	-24 °C	97 kt	19 h 29 min	4:06 am PDT (11:06 UTC)
30,000 ft FL300	250° at 35 kt	+31 kt	-35 °C	89 kt	21 h 14 min	5:51 am PDT (12:51 UTC)
34,000 ft FL340	260° at 40 kt	+37 kt	-39 °C	83 kt	22 h 46 min	7:23 am PDT (14:23 UTC)
39,000 ft FL390	260° at 43 kt	+42 kt	-45 °C	78 kt	24 h 14 min	8:51 am PDT (15:51 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
RIC	used from 0 nm out; 93 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°
EKN	used from 50 nm out; 72 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°
AGC	used from 100 nm out; 41 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°
CLE	used from 200 nm out; 58 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°
FWA	used from 350 nm out; 46 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°
MKG	used from 450 nm out; 64 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°
JOT	used from 500 nm out; 61 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°
DBQ	used from 600 nm out; 57 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°
LSE	used from 650 nm out; 43 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°
MCW	used from 750 nm out; 40 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°
FSD	used from 850 nm out; 77 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°
ABR	used from 950 nm out; 63 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°
PIR	used from 1050 nm out; 45 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°
RAP	used from 1150 nm out; 89 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°
DIK	used from 1200 nm out; 80 nm from the line		330/11 1°	230/20 4°	220/22 0°	230/29 -12°	240/27 -25°	240/40 -34°	230/49 -37°	240/55 -44°
MLS	used from 1250 nm out; 79 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°
BIL	used from 1400 nm out; 26 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°
DLN	used from 1550 nm out; 70 nm from the line			L/V -3°	170/16 -6°	180/21 -18°	190/27 -30°	210/63 -33°	210/62 -36°	210/51 -42°
LWS	used from 1700 nm out; 78 nm from the line	L/V	L/V -2°	030/6 -5°	050/10 -10°	110/19 -21°	150/22 -31°	130/11 -36°	200/6 -37°	220/21 -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
DCA Washington, DC	departure	marginal VFR Sky: a broken layer at 2,800 feet	from the north-northwest (340°) at 14 knots, gusting to 19	10+ mi	2,800 ft	14 ft	10:52 am EDT (14:52 UTC)
JYO Leesburg, VA	30 nm out, 2 nm east of the line, tower	VFR Sky: scattered clouds at 2,900 feet	from the north (350°) at 16 knots, gusting to 23	10+ mi	none	389 ft	15:35 UTC
MFD Mansfield, OH	280 nm out, 3 nm south of the line, tower	VFR Sky: scattered clouds at 700 feet	from the south (190°) at 9 knots	10+ mi	none	1,297 ft	15:14 UTC
UGN Chicago/Waukegan, IL	540 nm out, 5 nm south of the line, tower	VFR	from the southwest (230°) at 12 knots	10+ mi	none	728 ft	14:51 UTC
JVL Janesville, WI	590 nm out, 11 nm south of the line, tower	VFR Sky: scattered clouds at 23,000 feet	from the southwest (230°) at 12 knots	10+ mi	none	807 ft	14:45 UTC
RST Rochester, MN	760 nm out, 14 nm northeast of the line, tower	VFR	from the south-southwest (200°) at 13 knots	7 mi	none	1,317 ft	14:54 UTC
ATY Watertown, SD	970 nm out, 19 nm northeast of the line	low IFR Sky: overcast at 200 feet Weather: mist	from the northeast (050°) at 8 knots	2.5 mi	200 ft	1,749 ft	15:19 UTC
BIL Billings, MT	1450 nm out, 12 nm south of the line, tower	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	14:53 UTC
BZN Bozeman, MT	1560 nm out, 23 nm south of the line, tower	low IFR Sky: overcast at 200 feet Weather: mist	from the south (170°) at 6 knots	3 mi	200 ft	4,473 ft	15:00 UTC
LWS Lewiston, ID	1800 nm out, 6 nm northwest of the line, tower	VFR Sky: overcast at 5,500 feet	calm	10+ mi	5,500 ft	1,442 ft	14:56 UTC
PSC Pasco, WA	destination	VFR Sky: a few clouds at 9,000 feet	from the north (360°) at 3 knots	10+ mi	none	410 ft	7:53 am PDT (14:53 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, 1:48 am PDT (08:48 UTC)

Wind light and variable, visibility more than 6 miles, clear skies VFR

The whole forecast for PSC

From Mon 5:00 am PDT (12:00 UTC): wind from the north at 5 knots, visibility more than 6 miles, scattered clouds at 7,000 feet, a broken layer at 10,000 feet
From Mon 4:00 pm PDT (23:00 UTC): wind from the east-southeast at 3 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies

The forecast for DCA, the departure

From Mon 11:00 am EDT (15:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, a few clouds at 2,500 feet, a broken layer at 3,000 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the north-northwest at 13 knots, gusting to 22, visibility more than 6 miles, a broken layer at 2,500 feet, a broken layer at 3,500 feet
From Mon 3:00 pm EDT (19:00 UTC): wind from the north-northwest at 10 knots, gusting to 17, visibility more than 6 miles, scattered clouds at 2,500 feet, a broken layer at 4,000 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, a broken layer at 4,500 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 5 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-southwest at 9 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 on the route, at the departure end · security · ZDC
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local 1 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 18 nm from the route, 210 nm along the route · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 18 nm from the route, 210 nm along the route · a VIP movement · today · ZOB
6/8927 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local 9 nm from the route, 1680 nm along the route · a VIP movement · starts Wednesday 14 October · ZSE
6/8923 Kalispell, MT, Wednesday, October 14, 2026 through Wednesday, October 14, 2026 Local 9 nm from the route, 1680 nm along the route · a VIP movement · starts Wednesday 14 October · ZLC

Daylight

Sunset at DCA 6:34 pm EDT (22:34 UTC), at PSC 6:13 pm PDT (01:13 UTC) (civil twilight ends 6:44 pm PDT (01:44 UTC)). At 120 knots the arrival at PSC is before sunrise there (7:10 am PDT (14:10 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

Radar now, the Northeast · loop National Weather Service

Radar now, the Southeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

Forecast chart, 24 hours ahead Weather Prediction Center

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: Ronald Reagan Washington Ntl Airport, Tri-Cities Airport.