Plan a flight · Sun 10:42 pm PDT (05:42 UTC)

Seattle-Tacoma International to Ronald Reagan Washington Ntl Airport SEA → DCA

2,019 nautical miles (2,323 statute miles) east on a straight line, true course 088°, about 072° magnetic at the departure end (variation 16E). At 120 knots that is 12 h 19 min at the quickest height in today's winds (39,000 ft, a 44-knot tailwind), arriving about 2:01 pm EDT (18:01 UTC). Right now SEA is VFR, wind from the east (090°) at 6 knots; DCA is marginal VFR, wind from the northwest (320°) at 5 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: 2,137 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 E19E: thunderstorms (a convective SIGMET) up to 43,000 ft, moving from the southwest at 20 knots, until 11:55 pm PDT (06:55 UTC). Over the last 120 nm of the route.

as issued

WSUS31 KKCI 120455
MKCE WST 120455
CONVECTIVE SIGMET 19E
VALID UNTIL 0655Z
CT NY NJ PA DE MD VA DC WV AND DE NJ NY MD CT VA CSTL WTRS
FROM 20NNW HTO-70SSE HTO-90SE SIE-20WNW LYH-40ESE AIR-20NNW HTO
AREA EMBD TS MOV FROM 24020KT. TOPS TO FL430.

AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 190 nm of the route.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 130 to 640 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 250 to 550 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 270 to 1109 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 270 to 460 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 650 to 680 nm out.
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). Over the route from 1249 to 1399 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 last 480 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1839 to 1969 nm out.
AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 100 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 SEA.

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

B38M at 20,000 ft, 8 nm southwest, 8:11 pm PDT (03:11 UTC): moderate clear-air turbulence from 20,000 ft to 25,000 ft. At the destination end, 8 nm southwest of the line.
as filed, and in English
```
IAD UA /OV AML300020/TM 0311/FL200/TP B38M/TB MOD CAT 200-250
```
Report
a routine report filed through IAD
Where
20 nm northwest (300°) of AML
Time
03:11 UTC
Height
at 20,000 ft
Aircraft
B38M
Turbulence
moderate clear-air turbulence from 20,000 ft to 25,000 ft
CL30 at 4,200 ft, 27 nm south, 8:16 pm PDT (03:16 UTC): no icing, overcast above 4,200 ft, remarks: during the descent ils runway 12. 340 nm along the route, 27 nm south of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0316/FL042/TP CL30/SK OVC042/WX 2 1/2SM/IC NEG/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
03:16 UTC
Height
at 4,200 ft
Aircraft
CL30
Sky
overcast from 4,200 ft
Weather
2, 1/2SM
Icing
none
Remarks
during the descent ils runway 12
A321 at 16,500 ft, 4 nm west, 8:25 pm PDT (03:25 UTC): light turbulence, remarks: during the climb. 1189 nm along the route, 4 nm west of the line.
as filed, and in English
```
MSP UA /OV MSP235040/TM 0325/FL165/TP A321/TB CONS LGT /RM DURC
```
Report
a routine report filed through MSP
Where
40 nm southwest (235°) of MSP
Time
03:25 UTC
Height
at 16,500 ft
Aircraft
A321
Turbulence
continuous light
Remarks
during the climb
LJ45 at 10,000 ft, 49 nm southwest, 9:31 pm PDT (04:31 UTC): no turbulence, clear, remarks: ground fog at fwa FV10SM on final runway 14. 1609 nm along the route, 49 nm southwest of the line.
as filed, and in English
```
FWA UA /OV OLK/TM 0431/FL100/TP LJ45/SK CLR/TB SMOOTH/RM GROUND FOG AT FWA. FV10SM ON FINAL RY 14
```
Report
a routine report filed through FWA
Where
over OLK
Time
04:31 UTC
Height
at 10,000 ft
Aircraft
LJ45
Sky
clear
Turbulence
smooth
Remarks
ground fog at fwa FV10SM on final runway 14
B738 at 1,800 ft, 2 nm north, 10:18 pm PDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. 1669 nm along the route, 2 nm north of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb
B739 descending, 44 nm northeast, 9:54 pm PDT (04:54 UTC): a routine report with nothing remarked on. 1669 nm along the route, 44 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
B738 at 1,300 ft, 2 nm north, 9:45 pm PDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. 1669 nm along the route, 2 nm north of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
04:45 UTC
Height
at 1,300 ft
Aircraft
B738
Sky
overcast from 1,300 ft, tops 3,000 ft
Remarks
during the descent
A320 descending, 44 nm northeast, 8:27 pm PDT (03:27 UTC): overcast above 1,400 ft. 1669 nm along the route, 44 nm northeast of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0327/FLDURD/TP A320/SK 014 OVC
```
Report
a routine report filed through DTW
Where
over DTW
Time
03:27 UTC
Height
during the descent
Aircraft
A320
Sky
at 1,400 ft overcast
E75S at 22,000 ft, 36 nm northeast, 7:51 pm PDT (02:51 UTC): light to moderate turbulence, remarks: zob. 1899 nm along the route, 36 nm northeast of the line.
as filed, and in English
```
JST UA /OV JST/TM 0251/FL220/TP E75S/TB LGHT-MOD/RM ZOB
```
Report
a routine report filed through JST
Where
over JST
Time
02:51 UTC
Height
at 22,000 ft
Aircraft
E75S
Turbulence
lght-mod
Remarks
zob
B712 descending, 26 nm northeast, 8:10 pm PDT (03:10 UTC): remarks: light rain light chop bases 50,000 ft ft. At the destination end, 26 nm northeast of the line.
as filed, and in English
```
BWI UA /OV RWY 15R/TM 0310/FLDURD/TP B712/RM LIGHT RAIN. LIGHT CHOP. BASES 500 FT
```
Report
a routine report filed through BWI
Where
runway 15R
Time
03:10 UTC
Height
during the descent
Aircraft
B712
Remarks
light rain light chop bases 50,000 ft 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 19 forecast points nearest it (SEA, YKM, GEG, GPI, GTF, BIL, MLS, DIK, ABR, AXN, MSP, LSE, GRB, MKG, FWA, 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	260° at 10 kt	−8 kt		128 kt	15 h 46 min	5:28 pm EDT (21:28 UTC)
5,500 ft	250° at 2 kt	−2 kt	3 °C	122 kt	16 h 33 min	6:15 pm EDT (22:15 UTC)
7,500 ft	260° at 3 kt	−3 kt	8 °C	123 kt	16 h 25 min	6:07 pm EDT (22:07 UTC)
9,500 ft	250° at 5 kt	−5 kt	4 °C	125 kt	16 h 09 min	5:51 pm EDT (21:51 UTC)
11,500 ft	240° at 9 kt	−7 kt	0 °C	127 kt	15 h 54 min	5:36 pm EDT (21:36 UTC)
13,500 ft	250° at 12 kt	−10 kt	-3 °C	130 kt	15 h 32 min	5:14 pm EDT (21:14 UTC)
15,500 ft	250° at 14 kt	−13 kt	-7 °C	133 kt	15 h 11 min	4:53 pm EDT (20:53 UTC)
17,500 ft	260° at 17 kt	−17 kt	-11 °C	137 kt	14 h 44 min	4:26 pm EDT (20:26 UTC)
18,000 ft FL180	260° at 18 kt	−18 kt	-12 °C	138 kt	14 h 38 min	4:20 pm EDT (20:20 UTC)
24,000 ft FL240	260° at 21 kt	−20 kt	-23 °C	140 kt	14 h 25 min	4:07 pm EDT (20:07 UTC)
30,000 ft FL300	260° at 24 kt	−24 kt	-37 °C	144 kt	14 h 01 min	3:43 pm EDT (19:43 UTC)
34,000 ft FL340	270° at 35 kt	−35 kt	-42 °C	155 kt	13 h 02 min	2:44 pm EDT (18:44 UTC)
39,000 ft FL390	270° at 43 kt	−44 kt	-48 °C	164 kt	12 h 19 min	2:01 pm EDT (18:01 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
SEA	used from 0 nm out; 25 nm from the line	050/7	050/11 1°	050/12 -5°	030/31 -7°	010/61 -15°	010/69 -26°	360/73 -40°	360/62 -47°	330/21 -43°
YKM	used from 50 nm out; 55 nm from the line	070/10	040/15 -1°	020/27 -8°	030/25 -13°	020/48 -20°	010/83 -27°	010/77 -37°	010/49 -40°	350/14 -41°
GEG	used from 100 nm out; 69 nm from the line		080/16 -2°	050/17 -7°	080/9 -10°	190/33 -21°	180/31 -32°	L/V -35°	L/V -37°	270/8 -40°
GPI	used from 250 nm out; 75 nm from the line		070/19 -5°	100/16 -7°	080/10 -8°	130/8 -19°	170/37 -28°	200/50 -40°	210/43 -40°	220/41 -42°
GTF	used from 350 nm out; 71 nm from the line		070/11	080/15 -7°	110/19 -9°	190/25 -14°	200/34 -23°	200/54 -39°	220/66 -40°	220/77 -44°
BIL	used from 550 nm out; 69 nm from the line		080/13	180/9 -2°	210/38 0°	220/51 -11°	210/46 -22°	210/58 -35°	230/73 -39°	230/72 -45°
MLS	used from 600 nm out; 52 nm from the line		150/23 2°	190/29 4°	210/44 2°	220/32 -10°	210/36 -21°	200/48 -37°	230/63 -40°	240/71 -47°
DIK	used from 749 nm out; 38 nm from the line		150/24 7°	200/38 6°	220/53 0°	230/51 -9°	230/49 -21°	240/37 -37°	240/47 -44°	250/65 -48°
ABR	used from 899 nm out; 67 nm from the line	070/14	250/10 17°	270/16 11°	260/28 5°	260/36 -10°	260/41 -22°	270/33 -37°	260/42 -42°	260/50 -48°
AXN	used from 1049 nm out; 65 nm from the line	100/14	250/21 14°	240/24 12°	240/31 5°	260/36 -10°	260/40 -21°	250/42 -36°	260/48 -45°	260/53 -50°
MSP	used from 1149 nm out; 47 nm from the line	230/26	240/30 17°	240/24 12°	250/22 5°	250/35 -10°	260/36 -21°	250/41 -36°	250/49 -45°	260/58 -52°
LSE	used from 1249 nm out; 37 nm from the line	230/40	240/24 17°	240/13 10°	250/13 6°	280/22 -9°	250/28 -21°	250/41 -34°	260/42 -44°	270/62 -53°
GRB	used from 1399 nm out; 83 nm from the line	250/36	270/23 16°	270/14 9°	240/18 4°	280/26 -9°	280/29 -20°	290/42 -36°	290/51 -45°	290/72 -55°
MKG	used from 1449 nm out; 71 nm from the line	260/22	290/16 15°	300/11 10°	290/5 3°	300/26 -9°	300/32 -20°	320/48 -36°	320/61 -45°	310/74 -53°
FWA	used from 1599 nm out; 58 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
CLE	used from 1699 nm out; 41 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 1799 nm out; 37 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°
EKN	used from 1899 nm out; 65 nm from the line		330/21 12°	330/25 7°	350/22 2°	330/24 -10°	310/27 -21°	320/33 -35°	290/31 -39°	290/34 -47°
RIC	used from 1999 nm out; 86 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
SEA Seattle, WA	departure	VFR	from the east (090°) at 6 knots	10+ mi	none	432 ft	9:53 pm PDT (04:53 UTC)
GEG Spokane, WA	190 nm out, 10 nm northeast of the line, tower	VFR Sky: a few clouds at 8,000 feet, scattered clouds at 12,000 feet	from the north-northeast (030°) at 8 knots	10+ mi	none	2,385 ft	04:53 UTC
THM Thompson Falls, MT	290 nm out, 11 nm northwest of the line	no report just now				2,467 ft
GTF Great Falls, MT	440 nm out, 17 nm north of the line, tower	IFR Sky: overcast at 800 feet Weather: light snow, mist	from the north (360°) at 10 knots	2 mi	800 ft	3,680 ft	05:28 UTC
BHK Baker, MT	739 nm out, 8 nm south of the line	IFR Sky: overcast at 800 feet	from the east (090°) at 10 knots	10+ mi	800 ft	2,980 ft	04:51 UTC
ABR Aberdeen, SD	989 nm out, 5 nm south of the line	IFR Sky: overcast at 600 feet	from the northeast (040°) at 9 knots	10+ mi	600 ft	1,301 ft	04:53 UTC
FCM Minneapolis, MN	1199 nm out, 23 nm northeast of the line, tower	VFR	from the south-southwest (210°) at 9 knots	10+ mi	none	906 ft	04:53 UTC
LSE La Crosse, WI	1309 nm out, 3 nm east of the line, tower	VFR	from the south-southwest (200°) at 12 knots	10+ mi	none	655 ft	04:53 UTC
MKE Milwaukee, WI	1469 nm out, 2 nm north of the line, tower	VFR Sky: a broken layer at 25,000 feet	from the south-southwest (210°) at 10 knots	10+ mi	25,000 ft	728 ft	04:52 UTC
TOL Toledo, OH	1669 nm out, 2 nm north of the line, tower	marginal VFR Sky: overcast at 1,500 feet	from the west-southwest (240°) at 3 knots	7 mi	1,500 ft	683 ft	05:09 UTC
JYO Leesburg, VA	1989 nm out, 2 nm southeast of the line, tower	IFR Sky: a broken layer at 600 feet, a broken layer at 1,000 feet, overcast at 1,900 feet Weather: rain	from the north (010°) at 5 knots	10+ mi	600 ft	389 ft	05:35 UTC
DCA Washington, DC	destination	marginal VFR Sky: overcast at 1,000 feet	from the northwest (320°) at 5 knots	10+ mi	1,000 ft	14 ft	1:36 am EDT (05:36 UTC)

The highest airport on this list sits at 3,680 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At DCA when you get there the forecast at the estimated arrival, 2:01 pm EDT (18:01 UTC)

Wind from the north-northwest at 13 knots, gusting to 22, visibility more than 6 miles, scattered clouds at 1,500 feet, overcast at 2,500 feet marginal VFR

The whole forecast for DCA

From Mon 2:00 am EDT (06:00 UTC): wind from the north at 8 knots, visibility 5 miles, light rain, mist, overcast at 900 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, overcast at 1,200 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, scattered clouds at 1,500 feet, overcast at 2,500 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 3,500 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 3,500 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

The forecast for SEA, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind from the east-northeast at 6 knots, visibility more than 6 miles, clear skies
From Mon 3:00 am PDT (10:00 UTC): wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies
From Mon 9:00 am PDT (16:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
From Mon 11:00 am PDT (18:00 UTC): wind from the west at 6 knots, visibility more than 6 miles, clear skies
From Mon 8:00 pm PDT (03:00 UTC): wind from the south at 4 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

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 10 nm from the route, 1809 nm along the route · a VIP movement · today · ZOB
6/8587 Youngstown, OH, Monday, October 12, 2026 through Monday, October 12, 2026 Local 10 nm from the route, 1809 nm along the route · a VIP movement · today · ZOB
6/8600 Sterling, VA, Monday, October 12, 2026 through Monday, October 12, 2026 Local on the route, at the destination end · a VIP movement · today · ZDC
4/9383 WASHINGTON, DC., USA on the route, at the destination end · security · ZDC

Daylight

Sunset at SEA 6:27 pm PDT (01:27 UTC), at DCA 6:34 pm EDT (22:34 UTC) (civil twilight ends 7:01 pm EDT (23:01 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 Pacific Northwest · loop National Weather Service

Radar now, the northern Rockies · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Seattle-Tacoma International, Ronald Reagan Washington Ntl Airport.