Plan a flight · Sun 6:38 pm PDT (01:38 UTC)

Seattle-Tacoma International to Indianapolis International SEA → IND

1,618 nautical miles (1,861 statute miles) east on a straight line, true course 093°, about 077° magnetic at the departure end (variation 16E). At 120 knots that is 9 h 52 min at the quickest height in today's winds (39,000 ft, a 44-knot tailwind), arriving about 7:30 am EDT (11:30 UTC), after sunset at the destination. Right now SEA is VFR, wind from the north (350°) at 11 knots; IND is VFR, wind calm. 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: 1,420 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 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 7:55 pm PDT (02:55 UTC). Over the route from 589 to 679 nm out.
as issued
```
WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 3W
VALID UNTIL 0255Z
MT WY
FROM 10WSW MLS-70E DDY-20N LAR-50E BPI-30NE BIL-10WSW MLS
AREA TS MOV FROM 22040KT. TOPS TO FL310.
```
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the first 150 nm of the route.
AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 100 to 459 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 210 to 599 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 270 to 849 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 280 to 949 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, 579 nm along the route.
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 1168 to 1308 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 SEA.

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, 4:22 pm PDT (23:22 UTC): moderate turbulence from 14,000 ft to 21,000 ft, remarks: during the climb zlc. 339 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
PC12 at 15,000 ft, 33 nm south, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 33 nm south of the line.
as filed, and in English
```
YKM UA /OV YKM270050/TM 0042/FL150/TP PC12/SK TOP130/RM -ZSE
```
Report
a routine report filed through YKM
Where
50 nm west (270°) of YKM
Time
00:42 UTC
Height
at 15,000 ft
Aircraft
PC12
Sky
TOP130
Remarks
zse
PC12 at 13,000 ft, 33 nm south, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 33 nm south of the line.
as filed, and in English
```
YKM UA /OV YKM270050/TM 0042/FL130/TP PC12/SK TOP130/RM -ZSE
```
Report
a routine report filed through YKM
Where
50 nm west (270°) of YKM
Time
00:42 UTC
Height
at 13,000 ft
Aircraft
PC12
Sky
TOP130
Remarks
zse
PC12 at 13,500 ft, 36 nm south, 6:08 pm PDT (01:08 UTC): no turbulence, a trace of icing, overcast from 9,000 ft to 13,500 ft, -10 °C. 140 nm along the route, 36 nm south of the line.
as filed, and in English
```
PSC UA /OV PSC360025/TM 0108/FL135/TP PC12/SK OVC090-TOP135/TA M10/TB NEG /IC TRACE RM 135-090
```
Report
a routine report filed through PSC
Where
25 nm north (360°) of PSC
Time
01:08 UTC
Height
at 13,500 ft
Aircraft
PC12
Sky
overcast from 9,000 ft, tops 13,500 ft
Temperature
−10 °C
Turbulence
none
Icing
trace remarks from 13,500 ft to 9,000 ft
C25B at 4,100 ft, 5 nm north, 5:36 pm PDT (00:36 UTC): no icing, overcast above 4,100 ft, remarks: during the descent ils runway 12. 339 nm along the route, 5 nm north of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0036/FL041/TP C25B/SK OVC041/IC NEG/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
00:36 UTC
Height
at 4,100 ft
Aircraft
C25B
Sky
overcast from 4,100 ft
Icing
none
Remarks
during the descent ils runway 12
B738 at 24,000 ft, 36 nm south, 4:13 pm PDT (23:13 UTC): remarks: snow top flight level at 24,000 ft zlc. 439 nm along the route, 36 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
E75L descending, 40 nm south, 6:04 pm PDT (01:04 UTC): remarks: had the airport in sight at 400-500FT above ground. 469 nm along the route, 40 nm south of the line.
as filed, and in English
```
BZN UA /OV BZN/TM 0104/FLDURD/TP E75L/RM HAD THE AIRPORT IN SIGHT AT 400-500FT AGL
```
Report
a routine report filed through BZN
Where
over BZN
Time
01:04 UTC
Height
during the descent
Aircraft
E75L
Remarks
had the airport in sight at 400-500FT above ground
B737 descending, 40 nm south, 5:28 pm PDT (00:28 UTC): scattered clouds above 8,000 ft, fog, snow, remarks: broke out about 100FT above mins. 469 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
A306 at 4,700 ft, 15 nm south, 5:51 pm PDT (00:51 UTC): a routine report with nothing remarked on. 569 nm along the route, 15 nm south of the line.
as filed, and in English
```
BIL UA /OV BIL280001/TM 0051/FL047/TP A306/SK BASE 047
```
Report
a routine report filed through BIL
Where
1 nm west (280°) of BIL
Time
00:51 UTC
Height
at 4,700 ft
Aircraft
A306
Sky
base 4,700 ft
B763 at 32,000 ft, 44 nm south, 6:29 pm PDT (01:29 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 909 nm along the route, 44 nm south of the line.
as filed, and in English
```
RAP UA /OV RAP084081/TM 0129/FL320/TP B763/TB OCNL LGT-MOD CAT/RM ZDVWC-
```
Report
a routine report filed through RAP
Where
81 nm east (084°) of RAP
Time
01:29 UTC
Height
at 32,000 ft
Aircraft
B763
Turbulence
occasional light to moderate clear-air turbulence
Remarks
zdvwc
BE20 at 14,000 ft, 43 nm northeast, 5:20 pm PDT (00:20 UTC): light turbulence. 1068 nm along the route, 43 nm northeast of the line.
as filed, and in English
```
FSD UA /OV FSD340035/TM 0020/FL140/TP BE20/TB CONS LGT/ NEG 120
```
Report
a routine report filed through FSD
Where
35 nm north (340°) of FSD
Time
00:20 UTC
Height
at 14,000 ft
Aircraft
BE20
Turbulence
continuous light no at 12,000 ft
E170 at 23,000 ft, 11 nm north, 4:14 pm PDT (23:14 UTC): light turbulence. At the destination end, 11 nm north 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

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 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 (SEA, YKM, GEG, LWS, GPI, GTF, BIL, MLS, RAP, PIR, FSD, MCW, DSM, DBQ, BRL, JOT, IND). 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	220° at 9 kt	−2 kt		122 kt	13 h 16 min	10:54 am EDT (14:54 UTC)
5,500 ft	090° at 3 kt	+4 kt	8 °C	116 kt	13 h 57 min	11:35 am EDT (15:35 UTC)
7,500 ft	light and variable	+1 kt	8 °C	119 kt	13 h 36 min	11:14 am EDT (15:14 UTC)
9,500 ft	230° at 4 kt	−1 kt	3 °C	121 kt	13 h 22 min	11:00 am EDT (15:00 UTC)
11,500 ft	230° at 8 kt	−4 kt	1 °C	124 kt	13 h 03 min	10:41 am EDT (14:41 UTC)
13,500 ft	230° at 11 kt	−6 kt	-3 °C	126 kt	12 h 50 min	10:28 am EDT (14:28 UTC)
15,500 ft	230° at 14 kt	−8 kt	-7 °C	128 kt	12 h 38 min	10:16 am EDT (14:16 UTC)
17,500 ft	240° at 16 kt	−10 kt	-11 °C	130 kt	12 h 27 min	10:05 am EDT (14:05 UTC)
18,000 ft FL180	240° at 17 kt	−11 kt	-12 °C	131 kt	12 h 21 min	9:59 am EDT (13:59 UTC)
24,000 ft FL240	250° at 23 kt	−18 kt	-22 °C	138 kt	11 h 43 min	9:21 am EDT (13:21 UTC)
30,000 ft FL300	250° at 29 kt	−24 kt	-36 °C	144 kt	11 h 14 min	8:52 am EDT (12:52 UTC)
34,000 ft FL340	250° at 38 kt	−33 kt	-42 °C	153 kt	10 h 35 min	8:13 am EDT (12:13 UTC)
39,000 ft FL390	260° at 47 kt	−44 kt	-48 °C	164 kt	9 h 52 min	7:30 am EDT (11:30 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
SEA	used from 0 nm out; 25 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°
YKM	used from 50 nm out; 48 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°
GEG	used from 150 nm out; 32 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°
LWS	used from 250 nm out; 69 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°
GPI	used from 300 nm out; 87 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°
GTF	used from 349 nm out; 88 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°
BIL	used from 499 nm out; 53 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°
MLS	used from 649 nm out; 49 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°
RAP	used from 749 nm out; 77 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°
PIR	used from 849 nm out; 61 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°
FSD	used from 998 nm out; 72 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°
MCW	used from 1198 nm out; 48 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°
DSM	used from 1248 nm out; 51 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°
DBQ	used from 1298 nm out; 68 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°
BRL	used from 1348 nm out; 47 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°
JOT	used from 1448 nm out; 58 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°
IND	used from 1548 nm out; 45 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°

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 Sky: a few clouds at 5,000 feet	from the north (350°) at 11 knots	10+ mi	none	432 ft	5:53 pm PDT (00:53 UTC)
MWH Moses Lake, WA	120 nm out, 6 nm southeast of the line, tower	VFR Sky: overcast at 10,000 feet	from the northeast (050°) at 13 knots, gusting to 18	10+ mi	10,000 ft	1,188 ft	00:52 UTC
PUW Pullman/Moscow, WA	220 nm out, 23 nm south of the line	VFR Sky: overcast at 5,500 feet	from the north (010°) at 8 knots	10+ mi	5,500 ft	2,566 ft	00:53 UTC
HLN Helena, MT	429 nm out, 5 nm northwest of the line, tower	IFR Sky: a few clouds at 700 feet, overcast at 1,400 feet Weather: light snow, mist	from the west (270°) at 7 knots	1.75 mi	1,400 ft	3,877 ft	01:19 UTC
BIL Billings, MT	579 nm out, 15 nm southwest of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,200 feet Weather: light snow, mist	from the north (010°) at 12 knots	4 mi	800 ft	3,662 ft	01:23 UTC
PIR Pierre, SD	939 nm out, 4 nm northwest of the line	marginal VFR Sky: a few clouds at 500 feet, overcast at 1,100 feet	from the east-northeast (070°) at 5 knots	10+ mi	1,100 ft	1,744 ft	00:53 UTC
FSD Sioux Falls, SD	1098 nm out, 11 nm north of the line, tower	VFR Sky: scattered clouds at 18,000 feet, scattered clouds at 25,000 feet	from the west-northwest (290°) at 5 knots	10+ mi	none	1,430 ft	00:56 UTC
POH Pocahontas, IA	1198 nm out, 2 nm south of the line	no report just now				1,225 ft
MLI Moline, IL	1398 nm out, 5 nm northeast of the line, tower	VFR	from the south-southeast (160°) at 7 knots	10+ mi	none	589 ft	00:52 UTC
BMI Bloomington/Normal, IL	1488 nm out, 16 nm south of the line, tower	VFR	from the south (170°) at 5 knots	10+ mi	none	871 ft	00:56 UTC
IND Indianapolis, IN	destination	VFR	calm	10+ mi	none	796 ft	8:54 pm EDT (00:54 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 IND when you get there the forecast at the estimated arrival, 7:30 am EDT (11:30 UTC)

Wind from the south at 6 knots, visibility 6 miles, mist, scattered clouds at 25,000 feet VFR

At times between Mon 4:00 am EDT (08:00 UTC) and 8:00 am EDT (12:00 UTC): visibility 4 miles, mist, a few clouds at 700 feet marginal VFR

The whole forecast for IND

From Sun 8:00 pm EDT (00:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 4:00 am EDT (08:00 UTC): wind from the south at 6 knots, visibility 6 miles, mist, scattered clouds at 25,000 feet
At times between Mon 4:00 am EDT (08:00 UTC) and 8:00 am EDT (12:00 UTC): visibility 4 miles, mist, a few clouds at 700 feet
From Mon 9:00 am EDT (13:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, scattered clouds at 20,000 feet

The forecast for SEA, the departure

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

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at SEA 6:27 pm PDT (01:27 UTC), at IND 7:10 pm EDT (23:10 UTC) (civil twilight ends 7:37 pm EDT (23:37 UTC)). At 120 knots the arrival at IND is before sunrise there (7:52 am EDT (11:52 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, Indianapolis International.