Plan a flight · Sun 11:37 pm EDT (03:37 UTC)

Indianapolis International to Seattle-Tacoma International IND → SEA

1,618 nautical miles (1,861 statute miles) northwest on a straight line, true course 299°, about 304° magnetic at the departure end (variation 5W). At 120 knots that is 13 h 16 min at the quickest height in today's winds (4,500 ft, a 2-knot tailwind), arriving about 9:53 am PDT (16:53 UTC). 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 1C: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 40 knots, until 12:55 am EDT (04:55 UTC). Over the route from 829 to 909 nm out.

as issued

WSUS32 KKCI 120255
MKCC WST 120255
CONVECTIVE SIGMET 1C
VALID UNTIL 0455Z
SD ND MT WY
FROM 30WSW DIK-50NW DPR-60WNW RAP-50ENE SHR-30WSW DIK
AREA TS MOV FROM 22040KT. TOPS TO FL300.

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 10 nm of 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 330 to 429 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 599 to 599 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 679 to 1338 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Near the route, 879 nm along the route.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Near the route, 1038 nm along the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1058 to 1388 nm out.
AIRMET ZULU 2C: moderate icing up to 20,000 ft. Over the route from 1108 to 1558 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 1158 to 1368 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 160 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 IND.

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

A21N at 17,000 ft, 45 nm south, 9:28 pm EDT (01:28 UTC): no icing, clear from 17,000 ft to 60,000 ft, remarks: clear since departing KIND southbound. At the departure end, 45 nm south of the line.
as filed, and in English
```
IND UA /OV IND183045/TM 0128/FL170/TP A21N/SK SKC/IC NEG/RM CLR SINCE DEPARTING KIND SOUTHBOUND
```
Report
a routine report filed through IND
Where
45 nm south (183°) of IND
Time
01:28 UTC
Height
at 17,000 ft
Aircraft
A21N
Sky
clear
Icing
none
Remarks
clear since departing KIND southbound
UAL2499 at 28,000 ft, 7 nm south, 10:15 pm EDT (02:15 UTC): light chop turbulence. 270 nm along the route, 7 nm south of the line.
as filed, and in English
```
ARP UAL2499 4138N 09137W 0215 F280 TB INTMT LGT CHOP IC
```
Report
a routine report filed through ARP
B763 at 32,000 ft, 44 nm south, 9:29 pm EDT (01:29 UTC): light to moderate clear-air turbulence, remarks: zdvwc. 709 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
A306 at 4,700 ft, 15 nm south, 8:51 pm EDT (00:51 UTC): a routine report with nothing remarked on. 1048 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
E75L descending, 40 nm south, 9:04 pm EDT (01:04 UTC): remarks: had the airport in sight at 400-500FT above ground. 1148 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
CL30 at 4,200 ft, 5 nm north, 11:16 pm EDT (03:16 UTC): no icing, overcast above 4,200 ft, remarks: during the descent ils runway 12. 1278 nm along the route, 5 nm north 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
BCS1 at 3,700 ft, 5 nm north, 9:47 pm EDT (01:47 UTC): snow, rain, remarks: during the descent ils runway 12. 1278 nm along the route, 5 nm north of the line.
as filed, and in English
```
MSO UA /OV MSO/TM 0147/FL037/TP BCS1/SK 037/WX SN RA/RM DURD ILS RY 12
```
Report
a routine report filed through MSO
Where
over MSO
Time
01:47 UTC
Height
at 3,700 ft
Aircraft
BCS1
Sky
at 3,700 ft
Weather
snow, rain
Remarks
during the descent ils runway 12
PC12 at 13,500 ft, 36 nm south, 9:08 pm EDT (01:08 UTC): no turbulence, a trace of icing, overcast from 9,000 ft to 13,500 ft, -10 °C. 1478 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
SB20 at 16,000 ft, 27 nm north, 9:52 pm EDT (01:52 UTC): remarks: zse. At the destination end, 27 nm north of the line.
as filed, and in English
```
PAE UA /OV PAE075045/TM 0152/FL160/TP SB20/SK TOP120/RM ZSE
```
Report
a routine report filed through PAE
Where
45 nm east (075°) of PAE
Time
01:52 UTC
Height
at 16,000 ft
Aircraft
SB20
Sky
TOP120
Remarks
zse
A321 at 13,500 ft, 33 nm south, 9:54 pm EDT (01:54 UTC): remarks: zse. At the destination end, 33 nm south of the line.
as filed, and in English
```
SEA UA /OV SEA120045/TM 0154/FL135/TP A321/SK TOP130/RM ZSE
```
Report
a routine report filed through SEA
Where
45 nm southeast (120°) of SEA
Time
01:54 UTC
Height
at 13,500 ft
Aircraft
A321
Sky
TOP130
Remarks
zse
PC12 at 15,000 ft, 33 nm south, 8:42 pm EDT (00:42 UTC): remarks: zse. At the destination 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, 8:42 pm EDT (00:42 UTC): remarks: zse. At the destination 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

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 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 17 forecast points nearest it (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	190° at 8 kt	−2 kt	7 °C	122 kt	13 h 16 min	9:53 am PDT (16:53 UTC)
6,500 ft	200° at 7 kt	0	9 °C	120 kt	13 h 29 min	10:06 am PDT (17:06 UTC)
8,500 ft	210° at 7 kt	+1 kt	7 °C	119 kt	13 h 36 min	10:13 am PDT (17:13 UTC)
10,500 ft	210° at 9 kt	+2 kt	2 °C	118 kt	13 h 43 min	10:20 am PDT (17:20 UTC)
12,500 ft	220° at 12 kt	+4 kt	-1 °C	116 kt	13 h 57 min	10:34 am PDT (17:34 UTC)
14,500 ft	230° at 14 kt	+6 kt	-5 °C	114 kt	14 h 12 min	10:49 am PDT (17:49 UTC)
16,500 ft	230° at 16 kt	+9 kt	-9 °C	111 kt	14 h 35 min	11:12 am PDT (18:12 UTC)
18,000 ft FL180	230° at 17 kt	+10 kt	-12 °C	110 kt	14 h 43 min	11:20 am PDT (18:20 UTC)
24,000 ft FL240	240° at 20 kt	+13 kt	-23 °C	107 kt	15 h 07 min	11:44 am PDT (18:44 UTC)
30,000 ft FL300	240° at 27 kt	+18 kt	-36 °C	102 kt	15 h 52 min	12:29 pm PDT (19:29 UTC)
34,000 ft FL340	260° at 39 kt	+33 kt	-41 °C	87 kt	18 h 36 min	3:13 pm PDT (22:13 UTC)
39,000 ft FL390	260° at 46 kt	+40 kt	-46 °C	80 kt	20 h 14 min	4:51 pm PDT (23:51 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
IND	used from 0 nm out; 25 nm from the line	290/16	310/20 16°	320/21 10°	330/13 3°	300/25 -7°	320/32 -19°	330/46 -34°	320/61 -43°	320/63 -50°
JOT	used from 100 nm out; 55 nm from the line	250/23	270/22 15°	250/16 10°	240/9 4°	280/22 -7°	280/29 -19°	300/29 -34°	290/50 -43°	300/64 -52°
BRL	used from 150 nm out; 68 nm from the line	230/24	240/29 15°	290/16 10°	280/15 4°	260/23 -7°	260/32 -19°	260/36 -33°	280/48 -41°	280/59 -52°
DBQ	used from 250 nm out; 57 nm from the line	230/33	250/30 16°	280/15 9°	260/15 5°	260/21 -7°	260/24 -20°	250/37 -33°	270/42 -43°	280/63 -52°
DSM	used from 300 nm out; 56 nm from the line	230/40	250/33 17°	250/18 12°	240/17 5°	260/28 -8°	270/34 -19°	260/41 -33°	260/55 -41°	270/62 -51°
MCW	used from 349 nm out; 45 nm from the line	220/44	250/30 17°	230/14 12°	240/17 6°	250/22 -8°	270/29 -20°	250/34 -34°	260/52 -43°	260/59 -51°
FSD	used from 449 nm out; 49 nm from the line	190/9	230/30 18°	240/23 13°	240/20 6°	260/22 -9°	250/31 -21°	250/43 -36°	260/49 -43°	270/53 -47°
PIR	used from 599 nm out; 59 nm from the line		170/22 19°	190/25 13°	210/32 6°	240/23 -9°	250/32 -21°	250/38 -36°	260/44 -40°	260/52 -47°
RAP	used from 749 nm out; 57 nm from the line		180/23 12°	200/38 13°	210/38 6°	220/28 -10°	230/34 -21°	230/37 -36°	250/52 -38°	250/59 -46°
MLS	used from 849 nm out; 86 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°
BIL	used from 998 nm out; 24 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°
GTF	used from 1098 nm out; 80 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°
GPI	used from 1248 nm out; 91 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°
LWS	used from 1298 nm out; 85 nm from the line	070/10	080/12 -2°	030/12 -6°	080/7 -10°	170/34 -21°	160/46 -32°	200/33 -35°	220/22 -35°	230/18 -38°
GEG	used from 1398 nm out; 27 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°
YKM	used from 1498 nm out; 51 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°
SEA	used from 1548 nm out; 45 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°

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	Elevation
IND Indianapolis, IN	departure	no report just now	796 ft
BMI Bloomington/Normal, IL	130 nm out, 16 nm south of the line, tower	no report just now	871 ft
MLI Moline, IL	220 nm out, 5 nm northeast of the line, tower	no report just now	589 ft
POH Pocahontas, IA	419 nm out, 2 nm south of the line	no report just now	1,225 ft
FSD Sioux Falls, SD	519 nm out, 11 nm north of the line, tower	no report just now	1,430 ft
PIR Pierre, SD	679 nm out, 4 nm northwest of the line	no report just now	1,744 ft
BIL Billings, MT	1038 nm out, 15 nm southwest of the line, tower	no report just now	3,662 ft
HLN Helena, MT	1188 nm out, 5 nm northwest of the line, tower	no report just now	3,877 ft
PUW Pullman/Moscow, WA	1398 nm out, 23 nm south of the line	no report just now	2,566 ft
MWH Moses Lake, WA	1498 nm out, 6 nm southeast of the line, tower	no report just now	1,188 ft
SEA Seattle, WA	destination	no report just now	432 ft

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, 9:53 am PDT (16:53 UTC)

SEA has no terminal forecast; use the nearest airport that does.

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 IND 7:10 pm EDT (23:10 UTC), at SEA 6:27 pm PDT (01:27 UTC) (civil twilight ends 6:58 pm PDT (01:58 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: Indianapolis International, Seattle-Tacoma International.