Plan a flight · Sun 8:31 pm EDT (00:31 UTC)

Cincinnati/Northern Kentucky International to Seattle-Tacoma International CVG → SEA

1,703 nautical miles (1,960 statute miles) northwest on a straight line, true course 300°, about 306° magnetic at the departure end (variation 6W). At 120 knots that is 13 h 44 min at the quickest height in today's winds (4,500 ft, a 4-knot tailwind), arriving about 7:15 am PDT (14:15 UTC), after sunset at the destination. Right now CVG is marginal VFR, wind from the west-northwest (300°) at 7 knots; SEA is VFR, wind from the north-northwest (340°) at 10 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: 2,556 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 W70W: thunderstorms (a convective SIGMET) up to 32,000 ft, moving from the southwest at 40 knots, until 9:55 pm EDT (01:55 UTC). Over the route from 1036 to 1066 nm out.
as issued
```
WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 70W
VALID UNTIL 0155Z
MT WY
FROM 30SSW MLS-60WNW BFF-40SSE OCS-10S BPI-10S BIL-30SSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL320.
```
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 757 to 1434 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 896 to 1444 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1115 to 1504 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, 1145 nm along the route.
AIRMET ZULU 2C: moderate icing up to 14,000 ft. Over the route from 1354 to 1584 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 CVG.

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

E75L at 14,000 ft, 18 nm south, 7:22 pm EDT (23:22 UTC): moderate turbulence from 14,000 ft to 21,000 ft, remarks: during the climb zlc. 1364 nm along the route, 18 nm south 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
B737 at 23,000 ft, 3 nm southwest, 7:51 pm EDT (23:51 UTC): light turbulence. At the departure end, 3 nm southwest of the line.
as filed, and in English
```
IND UA /OV CVG/TM 2351/FL230/TP B737/TB LGT
```
Report
a routine report filed through IND
Where
over CVG
Time
23:51 UTC
Height
at 23,000 ft
Aircraft
B737
Turbulence
light
B739 climbing, 7 nm west, 7:31 pm EDT (23:31 UTC): overcast. At the departure end, 7 nm west of the line.
as filed, and in English
```
CVG UA /OV 5 W CVG/TM 2331/FLDURC/TP B739/SK B026 OVC T036
```
Report
a routine report filed through CVG
Where
5 west cvg
Time
23:31 UTC
Height
during the climb
Aircraft
B739
Sky
B026 overcast T036
B753 at 32,000 ft, 3 nm southwest, 6:11 pm EDT (22:11 UTC): no turbulence. At the departure end, 3 nm southwest of the line.
as filed, and in English
```
IND UA /OV CVG/TM 2211/FL320/TP B753/TB NEG
```
Report
a routine report filed through IND
Where
over CVG
Time
22:11 UTC
Height
at 32,000 ft
Aircraft
B753
Turbulence
none
C150 climbing, 38 nm northeast, 5:32 pm EDT (21:32 UTC): a routine report with nothing remarked on. At the departure end, 38 nm northeast of the line.
as filed, and in English
```
CMH UA /OV MGY/TM 2132/FLDURC/TP C150/SK B017 T036
```
Report
a routine report filed through CMH
Where
over MGY
Time
21:32 UTC
Height
during the climb
Aircraft
C150
Sky
B017 T036
B744 climbing, 7 nm northeast, 8:02 pm EDT (00:02 UTC): light turbulence, overcast. At the departure end, 7 nm northeast of the line.
as filed, and in English
```
CVG UA /OV 10 N CVG/TM 0002/FLDURC/TP B744/SK B022 OVC T036/TB LT TB SFC-036
```
Report
a routine report filed through CVG
Where
10 north cvg
Time
00:02 UTC
Height
during the climb
Aircraft
B744
Sky
B022 overcast T036
Turbulence
lt turbulence from the surface to 3,600 ft
A333 at 4,000 ft, 8 nm south, 6:44 pm EDT (22:44 UTC): overcast. At the departure end, 8 nm south of the line.
as filed, and in English
```
CVG UA /OV CVG270010/TM 2244/FL040/TP A333/SK B025 OVC T035
```
Report
a routine report filed through CVG
Where
10 nm west (270°) of CVG
Time
22:44 UTC
Height
at 4,000 ft
Aircraft
A333
Sky
B025 overcast T035
E170 at 23,000 ft, 8 nm northeast, 7:14 pm EDT (23:14 UTC): light turbulence. 110 nm along the route, 8 nm northeast of the line.
as filed, and in English
```
IND UA /OV VHP315020/TM 2314/FL230/TP E170/TB LGT
```
Report
a routine report filed through IND
Where
20 nm northwest (315°) of VHP
Time
23:14 UTC
Height
at 23,000 ft
Aircraft
E170
Turbulence
light
A21N at 34,000 ft, 9 nm north, 6:01 pm EDT (22:01 UTC): light chop turbulence. 398 nm along the route, 9 nm north of the line.
as filed, and in English
```
ALO UA /OV ALO180020/TM 2201/FL340/TP A21N/TB CONS LGT CHOP
```
Report
a routine report filed through ALO
Where
20 nm south (180°) of ALO
Time
22:01 UTC
Height
at 34,000 ft
Aircraft
A21N
Turbulence
continuous light chop
B739 at 30,000 ft, 22 nm south, 5:38 pm EDT (21:38 UTC): light turbulence. 498 nm along the route, 22 nm south of the line.
as filed, and in English
```
FOD UA /OV FOD220020/TM 2138/FL300/TP B739/TB CONS LGT/ OCNL MOD
```
Report
a routine report filed through FOD
Where
20 nm southwest (220°) of FOD
Time
21:38 UTC
Height
at 30,000 ft
Aircraft
B739
Turbulence
continuous light occasional moderate
PC12 at 100 ft, 5 nm east, 6:34 pm EDT (22:34 UTC): no icing. 767 nm along the route, 5 nm east of the line.
as filed, and in English
```
PIR UA /OV PIR/TM 2234/FL001/TP PC12/SK BASE030-TOP045/IC NEG
```
Report
a routine report filed through PIR
Where
over PIR
Time
22:34 UTC
Height
at 100 ft
Aircraft
PC12
Sky
BASE030-TOP045
Icing
none
PA24 at 2,500 ft, 5 nm east, 5:35 pm EDT (21:35 UTC): no turbulence, no icing. 767 nm along the route, 5 nm east of the line.
as filed, and in English
```
PIR UA /OV PIR/TM 2135/FL025/TP PA24/SK BASE027/TB NEG/IC NEG
```
Report
a routine report filed through PIR
Where
over PIR
Time
21:35 UTC
Height
at 2,500 ft
Aircraft
PA24
Sky
BASE027
Turbulence
none
Icing
none
B737 descending, 40 nm south, 8:28 pm EDT (00:28 UTC): scattered clouds above 8,000 ft, fog, snow, remarks: broke out about 100FT above mins. 1235 nm along the route, 40 nm south of the line.
as filed, and in English
```
BZN UA /OV BZN/TM 0028/FLDURD/TP B737/SK SCT080/WX 1/2SM SN FG/RM BROKE OUT ABOUT 100FT ABOVE MINS
```
Report
a routine report filed through BZN
Where
over BZN
Time
00:28 UTC
Height
during the descent
Aircraft
B737
Sky
scattered clouds from 8,000 ft
Weather
1/2SM, snow, fog
Remarks
broke out about 100FT above mins
B738 at 24,000 ft, 37 nm south, 7:13 pm EDT (23:13 UTC): remarks: snow top flight level at 24,000 ft zlc. 1265 nm along the route, 37 nm south of the line.
as filed, and in English
```
BZN UA /OV BZN270030/TM 2313/FL240/TP B738/RM SN TOP FL 240 /ZLC
```
Report
a routine report filed through BZN
Where
30 nm west (270°) of BZN
Time
23:13 UTC
Height
at 24,000 ft
Aircraft
B738
Remarks
snow top flight level at 24,000 ft zlc

2 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 18 forecast points nearest it (CVG, IND, JOT, BRL, DBQ, DSM, MCW, FSD, PIR, RAP, MLS, BIL, GTF, GPI, LWS, GEG, YKM, SEA). 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	110° at 3 kt	−4 kt	8 °C	124 kt	13 h 44 min	7:15 am PDT (14:15 UTC)
6,500 ft	040° at 1 kt	−1 kt	10 °C	121 kt	14 h 04 min	7:35 am PDT (14:35 UTC)
8,500 ft	250° at 2 kt	+1 kt	7 °C	119 kt	14 h 19 min	7:50 am PDT (14:50 UTC)
10,500 ft	240° at 6 kt	+3 kt	2 °C	117 kt	14 h 33 min	8:04 am PDT (15:04 UTC)
12,500 ft	230° at 9 kt	+6 kt	-1 °C	114 kt	14 h 56 min	8:27 am PDT (15:27 UTC)
14,500 ft	240° at 12 kt	+8 kt	-5 °C	112 kt	15 h 12 min	8:43 am PDT (15:43 UTC)
16,500 ft	240° at 15 kt	+10 kt	-9 °C	110 kt	15 h 29 min	9:00 am PDT (16:00 UTC)
18,000 ft FL180	240° at 17 kt	+11 kt	-12 °C	109 kt	15 h 37 min	9:08 am PDT (16:08 UTC)
24,000 ft FL240	250° at 23 kt	+18 kt	-22 °C	102 kt	16 h 42 min	10:13 am PDT (17:13 UTC)
30,000 ft FL300	250° at 29 kt	+24 kt	-36 °C	96 kt	17 h 44 min	11:15 am PDT (18:15 UTC)
34,000 ft FL340	250° at 38 kt	+33 kt	-42 °C	87 kt	19 h 34 min	1:05 pm PDT (20:05 UTC)
39,000 ft FL390	260° at 46 kt	+44 kt	-48 °C	76 kt	22 h 24 min	3:55 pm PDT (22:55 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
CVG	used from 0 nm out; 25 nm from the line	350/13	340/20 13°	340/22 8°	350/30 3°	340/30 -9°	340/38 -21°	330/37 -35°	320/38 -40°	310/35 -47°
IND	used from 50 nm out; 11 nm from the line	320/10	350/30 16°	350/32 10°	350/30 4°	340/31 -10°	340/42 -21°	340/49 -37°	320/46 -41°	320/47 -47°
JOT	used from 149 nm out; 66 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°
BRL	used from 249 nm out; 59 nm from the line	200/20	250/21 16°	240/22 10°	260/20 5°	270/16 -7°	290/22 -18°	320/41 -34°	320/56 -43°	310/68 -53°
DBQ	used from 349 nm out; 62 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°
DSM	used from 398 nm out; 53 nm from the line	200/32	240/27 17°	260/19 10°	260/16 5°	260/19 -7°	240/22 -19°	270/20 -32°	270/38 -42°	290/58 -53°
MCW	used from 448 nm out; 45 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°
FSD	used from 548 nm out; 36 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°
PIR	used from 697 nm out; 46 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 847 nm out; 56 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°
MLS	used from 946 nm out; 76 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 1046 nm out; 59 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 1195 nm out; 72 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°
GPI	used from 1345 nm out; 88 nm from the line		060/19 -3°	110/11 -8°	130/6 -8°	200/40 -19°	190/58 -28°	200/101 -39°	220/73 -43°	230/41 -43°
LWS	used from 1394 nm out; 76 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°
GEG	used from 1494 nm out; 28 nm from the line		050/18 -2°	060/19 -8°	L/V -11°	160/11 -24°	190/17 -31°	200/19 -35°	220/14 -37°	250/11 -41°
YKM	used from 1593 nm out; 49 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°
SEA	used from 1643 nm out; 35 nm from the line	360/9	350/10 1°	010/10 -5°	030/20 -11°	020/60 -17°	010/86 -26°	360/90 -40°	010/68 -42°	360/31 -43°

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
CVG Covington, KY	departure	marginal VFR Sky: overcast at 1,600 feet	from the west-northwest (300°) at 7 knots	10+ mi	1,600 ft	896 ft	7:52 pm EDT (23:52 UTC)
IND Indianapolis, IN	90 nm out, 4 nm southeast of the line, tower	VFR	from the south-southwest (200°) at 3 knots	10+ mi	none	796 ft	23:54 UTC
MLI Moline, IL	309 nm out, 6 nm east of the line, tower	VFR	from the south-southeast (160°) at 8 knots	10+ mi	none	589 ft	23:52 UTC
CID Cedar Rapids, IA	368 nm out, 6 nm east of the line, tower	VFR	from the south (180°) at 11 knots, gusting to 19	10+ mi	none	869 ft	21:52 UTC
FSD Sioux Falls, SD	608 nm out, 9 nm north of the line, tower	VFR Sky: a broken layer at 18,000 feet, a broken layer at 25,000 feet	from the west-northwest (290°) at 7 knots	10+ mi	18,000 ft	1,430 ft	23:56 UTC
PIR Pierre, SD	767 nm out, 1 nm northwest of the line	IFR Sky: a broken layer at 800 feet, overcast at 1,200 feet	from the northeast (050°) at 9 knots	10+ mi	800 ft	1,744 ft	23:53 UTC
BIL Billings, MT	1125 nm out, 16 nm southwest of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,200 feet Weather: light rain, mist	from the north (010°) at 14 knots	6 mi	800 ft	3,662 ft	23:53 UTC
HLN Helena, MT	1275 nm out, 3 nm northwest of the line, tower	low IFR Sky: scattered clouds at 500 feet, overcast at 1,300 feet Weather: snow, freezing fog	from the west-northwest (290°) at 5 knots	0.5 mi	1,300 ft	3,877 ft	00:06 UTC
MSO Missoula, MT	1364 nm out, 5 nm north of the line, tower	marginal VFR Sky: overcast at 3,200 feet Weather: light rain	from the south (180°) at 3 knots	4 mi	3,200 ft	3,205 ft	23:53 UTC
MWH Moses Lake, WA	1584 nm out, 6 nm southeast of the line, tower	VFR Sky: a broken layer at 10,000 feet	from the east-northeast (070°) at 14 knots	10+ mi	10,000 ft	1,188 ft	23:52 UTC
SEA Seattle, WA	destination	VFR Sky: a few clouds at 2,000 feet, a few clouds at 5,000 feet	from the north-northwest (340°) at 10 knots	10+ mi	none	432 ft	4:53 pm PDT (23:53 UTC)

The highest airport on this list sits at 3,877 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SEA when you get there the forecast at the estimated arrival, 7:15 am PDT (14:15 UTC)

Wind from the southeast at 4 knots, visibility more than 6 miles, patches of fog, clear skies VFR

The whole forecast for SEA

From Sun 5:00 pm PDT (00:00 UTC): wind from the north at 12 knots, gusting to 20, visibility more than 6 miles, a few clouds at 2,000 feet, a few clouds at 5,000 feet
From Sun 8:00 pm PDT (03:00 UTC): wind from the 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 northwest at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for CVG, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 8 knots, visibility more than 6 miles, overcast at 1,500 feet
From Sun 9:00 pm EDT (01:00 UTC): wind from the northwest at 6 knots, visibility more than 6 miles, scattered clouds at 2,500 feet
From Mon 3:00 am EDT (07:00 UTC): wind light and variable, visibility 3 miles, mist, a few clouds at 2,500 feet
From Mon 5:00 am EDT (09:00 UTC): wind light and variable, visibility 1 mile, mist, scattered clouds at 200 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ½ mile, fog
From Mon 10:00 am EDT (14:00 UTC): wind from the south-southeast at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local on the route, at the departure end · a VIP movement · until 12 October · ZID

Daylight

Sunset at CVG 7:04 pm EDT (23:04 UTC), at SEA 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 UTC)). At 120 knots the arrival at SEA is before sunrise there (7:23 am PDT (14:23 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 central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the northern Rockies · 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: Cincinnati/Northern Kentucky International, Seattle-Tacoma International.