Plan a flight · Sun 8:28 pm CDT (01:28 UTC)

Acadiana Regional to Seattle-Tacoma International ARA → SEA

1,749 nautical miles (2,012 statute miles) northwest on a straight line, true course 315°, about 315° magnetic at the departure end (variation 0E). At 120 knots that is 14 h at the quickest height in today's winds (4,500 ft, a 5-knot tailwind), arriving about 8:28 am PDT (15:28 UTC). Right now ARA is VFR, wind calm; SEA is VFR, wind from the north (350°) at 11 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 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 9:55 pm CDT (02:55 UTC). Near the route, 1019 nm along the route.

as issued

WSUS33 KKCI 120055
MKCW WST 120055
CONVECTIVE SIGMET 1W
VALID UNTIL 0255Z
CO NM WY AZ UT
FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE
AREA SEV TS MOV FROM 23040KT. TOPS TO FL340.
WIND GUSTS TO 60KT POSS.

AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 799 to 1489 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 809 to 1239 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 929 to 1579 nm out.
AIRMET TANGO 1W: 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 949 to 1219 nm out.
AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 1019 to 1069 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 1109 to 1359 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 1209 to 1409 nm out.
AIRMET ZULU 2C: moderate icing up to 14,000 ft. Over the route from 1439 to 1639 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 ARA.

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

A320 at 26,500 ft, 5 nm southeast, 5:46 pm CDT (22:46 UTC): moderate clear-air turbulence, remarks: ZFW86. 210 nm along the route, 5 nm southeast of the line.
as filed, and in English
```
GGG UA /OV GGG/TM 2246/FL265/TP A320/TB MOD CAT/RM ZFW86
```
Report
a routine report filed through GGG
Where
over GGG
Time
22:46 UTC
Height
at 26,500 ft
Aircraft
A320
Turbulence
moderate clear-air turbulence
Remarks
ZFW86
GLF5 at 45,000 ft, 11 nm southwest, 5:44 pm CDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. 839 nm along the route, 11 nm southwest of the line.
as filed, and in English
```
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
```
Report
a routine report filed through COS
Where
25 nm north (350°) of COS
Time
22:44 UTC
Height
at 45,000 ft
Aircraft
GLF5
Turbulence
moderate
Remarks
ZDVWC-46
BCS3 at 24,000 ft, 34 nm northeast, 6:28 pm CDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. 899 nm along the route, 34 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN320045/TM 2328/FL240/TP BCS3/TB MOD 240-220/RM DURD
```
Report
a routine report filed through DEN
Where
45 nm northwest (320°) of DEN
Time
23:28 UTC
Height
at 24,000 ft
Aircraft
BCS3
Turbulence
moderate from 24,000 ft to 22,000 ft
Remarks
during the descent
CRJ2 at 19,000 ft, 29 nm northeast, 7:47 pm CDT (00:47 UTC): moderate chop turbulence, remarks: ZDVWC-13. 939 nm along the route, 29 nm northeast of the line.
as filed, and in English
```
EGE UA /OV RLG010052/TM 0047/FL190/TP CRJ2/TB COSN MOD CHOP/RM ZDVWC-13
```
Report
a routine report filed through EGE
Where
52 nm north (010°) of RLG
Time
00:47 UTC
Height
at 19,000 ft
Aircraft
CRJ2
Turbulence
cosn moderate chop
Remarks
ZDVWC-13
B39M at 32,000 ft, 5 nm southwest, 6:58 pm CDT (23:58 UTC): moderate chop turbulence, no icing, remarks: moderate mtw a 30-knot loss of airspeed ZDVWC-14. 939 nm along the route, 5 nm southwest of the line.
as filed, and in English
```
EEO UA /OV EKR069073/TM 2358/FL320/TP B39M/TB OCNL MOD CHOP/IC NEG/RM MOD MTW +/-30KT ZDVWC-14
```
Report
a routine report filed through EEO
Where
73 nm east (069°) of EKR
Time
23:58 UTC
Height
at 32,000 ft
Aircraft
B39M
Turbulence
occasional moderate chop
Icing
none
Remarks
moderate mtw a 30-knot loss of airspeed ZDVWC-14
A21N at 33,000 ft, 21 nm southwest, 5:35 pm CDT (22:35 UTC): moderate turbulence, remarks: mountain wave +25-30KTS. 979 nm along the route, 21 nm southwest of the line.
as filed, and in English
```
HDN UA /OV CHE/TM 2235/FL330/TP A21N/TB MOD/RM MTN WAVE +25-30KTS
```
Report
a routine report filed through HDN
Where
over CHE
Time
22:35 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
moderate
Remarks
mountain wave +25-30KTS
E75L at 27,000 ft, 40 nm southwest, 7:20 pm CDT (00:20 UTC): remarks: zhu. At the departure end, 40 nm southwest of the line.
as filed, and in English
```
LCH UA /OV LCH08510/TM 0020/FL270/TP E75L/TB CONS CHOP/RM ZHU
```
Report
a routine report filed through LCH
Where
LCH08510
Time
00:20 UTC
Height
at 27,000 ft
Aircraft
E75L
Turbulence
continuous chop
Remarks
zhu
B39M at 32,000 ft, 29 nm northeast, 6:07 pm CDT (23:07 UTC): light chop turbulence, remarks: zhu. At the departure end, 29 nm northeast of the line.
as filed, and in English
```
AEX UA /OV AEX/TM 2307/FL320/TP B39M/TB OCNL LGT CHOP/RM ZHU
```
Report
a routine report filed through AEX
Where
over AEX
Time
23:07 UTC
Height
at 32,000 ft
Aircraft
B39M
Turbulence
occasional light chop
Remarks
zhu
A21N at 31,000 ft, 47 nm southwest, 7:24 pm CDT (00:24 UTC): remarks: mountain wave +/-10-20KT ZDVWC-29. 789 nm along the route, 47 nm southwest of the line.
as filed, and in English
```
PUB UA /OV PUB/TM 0024/FL310/TP A21N/RM MTN WAVE +/-10-20KT ZDVWC-29
```
Report
a routine report filed through PUB
Where
over PUB
Time
00:24 UTC
Height
at 31,000 ft
Aircraft
A21N
Remarks
mountain wave +/-10-20KT ZDVWC-29
B737 at 25,000 ft, 34 nm southwest, 7:29 pm CDT (00:29 UTC): light rime icing, 0 °C, remarks: during the climb ZDVWC-29. 829 nm along the route, 34 nm southwest of the line.
as filed, and in English
```
COS UA /OV BRK242015/TM 0029/FL250/TP B737/SK TOP280/TA 00/IC LGT RIME/RM DURC ZDVWC-29
```
Report
a routine report filed through COS
Where
15 nm southwest (242°) of BRK
Time
00:29 UTC
Height
at 25,000 ft
Aircraft
B737
Sky
TOP280
Temperature
0 °C
Icing
light rime
Remarks
during the climb ZDVWC-29
GLF6 at 40,000 ft, 17 nm southwest, 7:48 pm CDT (00:48 UTC): light to moderate chop turbulence, remarks: ZDVWC-46. 839 nm along the route, 17 nm southwest of the line.
as filed, and in English
```
COS UA /OV COS340020/TM 0048/FL400/TP GLF6/TB LGT-MOD CHOP/RM ZDVWC-46
```
Report
a routine report filed through COS
Where
20 nm north (340°) of COS
Time
00:48 UTC
Height
at 40,000 ft
Aircraft
GLF6
Turbulence
light to moderate chop
Remarks
ZDVWC-46
B737 at 14,000 ft, 3 nm northwest, 7:20 pm CDT (00:20 UTC): light to moderate turbulence, remarks: light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft. 839 nm along the route, 3 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN170025/TM 0020/FL140/TP B737/TB LGT-MOD/RM LGT-MOD 140-160 OCCN LGT ABOVE 160
```
Report
a routine report filed through DEN
Where
25 nm south (170°) of DEN
Time
00:20 UTC
Height
at 14,000 ft
Aircraft
B737
Turbulence
light to moderate
Remarks
light to moderate from 14,000 ft to 16,000 ft occn light above 16,000 ft
A320 at 8,000 ft, 38 nm northeast, 6:42 pm CDT (23:42 UTC): light chop turbulence from 8,000 ft to 16,000 ft, remarks: during the climb. 839 nm along the route, 38 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN080030/TM 2342/FL080/TP A320/TB LGT CHOP 080-160/RM DURC
```
Report
a routine report filed through DEN
Where
30 nm east (080°) of DEN
Time
23:42 UTC
Height
at 8,000 ft
Aircraft
A320
Turbulence
light chop from 8,000 ft to 16,000 ft
Remarks
during the climb
B737 descending, 19 nm northeast, 8:23 pm CDT (01:23 UTC): no turbulence up to 10,000 ft. 859 nm along the route, 19 nm northeast of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0123/FLDURD/TP B737/TB NEG BLO 100
```
Report
a routine report filed through DEN
Where
over DEN
Time
01:23 UTC
Height
during the descent
Aircraft
B737
Turbulence
no below 10,000 ft

16 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 17 forecast points nearest it (LCH, SHV, DAL, OKC, GAG, GCK, GLD, PUB, DEN, RKS, LND, PIH, DLN, BOI, LWS, 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	200° at 11 kt	−5 kt	17 °C	125 kt	14 h	8:28 am PDT (15:28 UTC)
6,500 ft	210° at 11 kt	−3 kt	11 °C	123 kt	14 h 13 min	8:41 am PDT (15:41 UTC)
8,500 ft	210° at 16 kt	−4 kt	8 °C	124 kt	14 h 06 min	8:34 am PDT (15:34 UTC)
10,500 ft	210° at 18 kt	−2 kt	5 °C	122 kt	14 h 20 min	8:48 am PDT (15:48 UTC)
12,500 ft	220° at 21 kt	0	1 °C	120 kt	14 h 34 min	9:02 am PDT (16:02 UTC)
14,500 ft	220° at 22 kt	+1 kt	-3 °C	119 kt	14 h 42 min	9:10 am PDT (16:10 UTC)
16,500 ft	220° at 24 kt	+2 kt	-7 °C	118 kt	14 h 49 min	9:17 am PDT (16:17 UTC)
18,000 ft FL180	230° at 25 kt	+3 kt	-10 °C	117 kt	14 h 57 min	9:25 am PDT (16:25 UTC)
24,000 ft FL240	230° at 27 kt	+5 kt	-20 °C	115 kt	15 h 13 min	9:41 am PDT (16:41 UTC)
30,000 ft FL300	240° at 34 kt	+12 kt	-32 °C	108 kt	16 h 12 min	10:40 am PDT (17:40 UTC)
34,000 ft FL340	250° at 42 kt	+21 kt	-38 °C	99 kt	17 h 40 min	12:08 pm PDT (19:08 UTC)
39,000 ft FL390	260° at 44 kt	+28 kt	-47 °C	92 kt	19 h 01 min	1:29 pm PDT (20:29 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
LCH	used from 0 nm out; 53 nm from the line	190/6	180/8 18°	170/13 12°	220/12 7°	290/10 -4°	280/15 -14°	320/30 -31°	320/32 -40°	320/39 -53°
SHV	used from 100 nm out; 58 nm from the line	190/11	230/19 17°	230/26 12°	260/15 7°	280/16 -4°	300/17 -15°	300/34 -30°	300/31 -41°	310/42 -52°
DAL	used from 250 nm out; 61 nm from the line	180/21	190/24 15°	230/20 12°	220/23 8°	240/22 -5°	230/18 -15°	280/33 -29°	280/36 -39°	300/33 -52°
OKC	used from 350 nm out; 65 nm from the line	190/29	200/29 16°	230/22 14°	240/17 9°	240/28 -6°	250/35 -15°	270/42 -29°	270/43 -39°	280/38 -51°
GAG	used from 500 nm out; 21 nm from the line		190/34 19°	240/27 14°	240/26 8°	240/24 -6°	240/29 -16°	250/50 -28°	250/50 -39°	260/46 -50°
GCK	used from 600 nm out; 51 nm from the line		200/35 21°	220/34 14°	240/30 8°	240/27 -6°	240/31 -17°	240/53 -30°	250/55 -39°	250/60 -50°
GLD	used from 700 nm out; 85 nm from the line		190/29	200/30 15°	240/23 8°	250/39 -7°	230/39 -19°	230/57 -31°	240/67 -39°	250/62 -49°
PUB	used from 749 nm out; 53 nm from the line			210/24 16°	210/28 8°	230/43 -8°	240/42 -21°	240/77 -30°	240/72 -36°	250/51 -47°
DEN	used from 799 nm out; 42 nm from the line			190/31 16°	210/32 7°	240/41 -8°	230/47 -21°	240/56 -32°	250/65 -37°	250/61 -47°
RKS	used from 949 nm out; 110 nm from the line			190/43	210/65 3°	210/57 -9°	210/56 -21°	210/47 -33°	230/63 -37°	240/77 -46°
LND	used from 1149 nm out; 82 nm from the line			180/33 10°	190/50 3°	210/59 -9°	200/50 -21°	190/41 -34°	230/55 -39°	240/65 -47°
PIH	used from 1199 nm out; 49 nm from the line		270/10	270/13 1°	210/16 -2°	200/56 -11°	200/51 -23°	200/68 -33°	220/77 -37°	230/73 -44°
DLN	used from 1349 nm out; 93 nm from the line			080/10 -3°	180/8 -3°	180/23 -14°	200/58 -22°	200/80 -36°	220/85 -41°	230/81 -45°
BOI	used from 1399 nm out; 86 nm from the line		330/14 4°	230/5 -2°	220/20 -7°	210/37 -20°	200/59 -26°	200/67 -34°	210/73 -35°	220/62 -41°
LWS	used from 1449 nm out; 68 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°
YKM	used from 1599 nm out; 40 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 1699 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°

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
ARA New Iberia, LA	departure	VFR	calm	10+ mi	none	24 ft	7:53 pm CDT (00:53 UTC)
ACP Oakdale, LA	60 nm out, 1 nm northeast of the line	VFR	calm	10+ mi	none	107 ft	01:15 UTC
GGG Longview, TX	200 nm out, 3 nm west of the line, tower	VFR	from the south-southeast (150°) at 3 knots	10+ mi	none	365 ft	00:53 UTC
ADM Ardmore, OK	370 nm out, 5 nm east of the line, tower	VFR	from the south (170°) at 13 knots, gusting to 18	10+ mi	none	776 ft	19:50 UTC
LBL Liberal, KS	620 nm out, 1 nm southeast of the line	VFR	from the south (180°) at 14 knots	10+ mi	none	2,885 ft	00:56 UTC
APA Denver, CO	859 nm out, 4 nm east of the line, tower	VFR Sky: a few clouds at 10,000 feet, scattered clouds at 14,000 feet, a broken layer at 22,000 feet	from the south-southwest (200°) at 23 knots, gusting to 31	10+ mi	22,000 ft	5,884 ft	00:53 UTC
BJC Denver, CO	879 nm out, 10 nm northeast of the line, tower	VFR	from the north (350°) at 5 knots	10+ mi	none	5,673 ft	00:45 UTC
AFO Afton, WY	1189 nm out, 7 nm southwest of the line	VFR Sky: a broken layer at 7,000 feet, overcast at 8,000 feet	from the west-southwest (240°) at 7 knots	10+ mi	7,000 ft	6,220 ft	01:15 UTC
IDA Idaho Falls, ID	1259 nm out, 6 nm northeast of the line, tower	VFR Sky: scattered clouds at 700 feet, a broken layer at 3,200 feet, overcast at 4,700 feet Weather: light rain	from the south-southeast (160°) at 5 knots	10+ mi	3,200 ft	4,743 ft	01:22 UTC
ALW Walla Walla, WA	1569 nm out, 6 nm east of the line, tower	VFR Sky: overcast at 5,000 feet	from the south-southwest (210°) at 3 knots	10+ mi	5,000 ft	1,194 ft	00:53 UTC
PSC Pasco, WA	1599 nm out, 4 nm southwest of the line, tower	VFR Sky: overcast at 9,500 feet	from the northeast (040°) at 11 knots	10+ mi	9,500 ft	410 ft	00:53 UTC
SEA Seattle, WA	destination	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)

The highest airport on this list sits at 6,220 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, 8:28 am PDT (15:28 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 ARA, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, clear skies
From Sun 8:00 pm CDT (01:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 10:00 am CDT (15:00 UTC): wind from the southeast at 6 knots, visibility more than 6 miles, clear skies

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 ARA 6:40 pm CDT (23:40 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 lower Mississippi valley · loop National Weather Service

Radar now, the southern Plains · loop National Weather Service

Radar now, the southern 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: Acadiana Regional, Seattle-Tacoma International.