Plan a flight · Sun 6:48 pm PDT (01:48 UTC)

Seattle-Tacoma International to Louis Armstrong New Orleans International SEA → MSY

1,811 nautical miles (2,084 statute miles) southeast on a straight line, true course 114°, about 098° magnetic at the departure end (variation 16E). At 120 knots that is 12 h at the quickest height in today's winds (39,000 ft, a 31-knot tailwind), arriving about 8:48 am CDT (13:48 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: 1,247 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). Near the route, 637 nm along the route.
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 129 nm of the route.
AIRMET ZULU 2C: moderate icing up to 16,000 ft. Over the route from 99 to 328 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 179 to 716 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 288 to 945 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 328 to 567 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 338 to 716 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 517 to 965 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 547 to 836 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 667 to 736 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Near the route, 826 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 1005 to 1214 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

B738 at 33,000 ft, 46 nm northeast, 4:57 pm PDT (23:57 UTC): moderate chop turbulence from 31,000 ft to 33,000 ft. 468 nm along the route, 46 nm northeast of the line.
as filed, and in English
```
IDA UA /OV DBS015030/TM 2357/FL330/TP B738/TB MOD CHOP 310-330 /ZLC
```
Report
a routine report filed through IDA
Where
30 nm north (015°) of DBS
Time
23:57 UTC
Height
at 33,000 ft
Aircraft
B738
Turbulence
moderate chop from 31,000 ft to 33,000 ft zlc
CRJ2 at 19,000 ft, 2 nm east, 5:47 pm PDT (00:47 UTC): moderate chop turbulence, remarks: ZDVWC-13. 806 nm along the route, 2 nm east 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, 33 nm southwest, 4:58 pm PDT (23:58 UTC): moderate chop turbulence, no icing, remarks: moderate mtw a 30-knot loss of airspeed ZDVWC-14. 806 nm along the route, 33 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
BCS3 at 24,000 ft, 7 nm northeast, 4:28 pm PDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. 846 nm along the route, 7 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
BCS1 at 24,000 ft, 20 nm southwest, 6:30 pm PDT (01:30 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the climb ZDVWC-05. 865 nm along the route, 20 nm southwest of the line.
as filed, and in English
```
DEN UA /OV DVV270030/TM 0130/FL240/TP BCS1/TB MOD 220-240/RM DURC ZDVWC-05
```
Report
a routine report filed through DEN
Where
30 nm west (270°) of DVV
Time
01:30 UTC
Height
at 24,000 ft
Aircraft
BCS1
Turbulence
moderate from 22,000 ft to 24,000 ft
Remarks
during the climb ZDVWC-05
A21N at 32,000 ft, 34 nm northeast, 4:42 pm PDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. 905 nm along the route, 34 nm northeast of the line.
as filed, and in English
```
AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
```
Report
a routine report filed through AKO
Where
30 nm west (270°) of AKO
Time
23:42 UTC
Height
at 32,000 ft
Aircraft
A21N
Turbulence
intermittent moderate chop
Remarks
ZDVWC-61
UAL2199 at 35,000 ft, 32 nm northeast, 4:31 pm PDT (23:31 UTC): moderate chop turbulence, wind 247° at 79 knots. 915 nm along the route, 32 nm northeast of the line.
as filed, and in English
```
ARP UAL2199 4007N 10337W 2331 F350 247/079KT TB MOD CHOP IC
```
Report
a routine report filed through ARP
PC12 at 13,000 ft, 20 nm south, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 20 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 15,000 ft, 20 nm south, 5:42 pm PDT (00:42 UTC): remarks: zse. At the departure end, 20 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
C337 at 12,000 ft, 34 nm southwest, 6:18 pm PDT (01:18 UTC): light rime icing, -12 °C, remarks: zse. 99 nm along the route, 34 nm southwest of the line.
as filed, and in English
```
YKM UA /OV YKM155020/TM 0118/FL120/TP C337/TA M12/IC LGT RIME/RM ZSE
```
Report
a routine report filed through YKM
Where
20 nm southeast (155°) of YKM
Time
01:18 UTC
Height
at 12,000 ft
Aircraft
C337
Temperature
−12 °C
Icing
light rime
Remarks
zse
PC12 at 13,500 ft, 16 nm northeast, 6:08 pm PDT (01:08 UTC): no turbulence, a trace of icing, overcast from 9,000 ft to 13,500 ft, -10 °C. 139 nm along the route, 16 nm northeast 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
PC12 at 6,000 ft, 19 nm south, 5:56 pm PDT (00:56 UTC): overcast above 6,000 ft. 179 nm along the route, 19 nm south of the line.
as filed, and in English
```
ALW UA /OV ALW200015/TM 0056/FL060/TP PC12/SK OVC060
```
Report
a routine report filed through ALW
Where
15 nm south (200°) of ALW
Time
00:56 UTC
Height
at 6,000 ft
Aircraft
PC12
Sky
overcast from 6,000 ft
A320 descending, 26 nm northeast, 5:54 pm PDT (00:54 UTC): overcast above 7,500 ft, remarks: braking action good during the descent RY19. 537 nm along the route, 26 nm northeast of the line.
as filed, and in English
```
JAC UA /OV JAC/TM 0054/FLUNKN/TP A320/SK OVC075/RM BRAKING ACTION GOOD DURD RY19
```
Report
a routine report filed through JAC
Where
over JAC
Time
00:54 UTC
Height
height not given
Aircraft
A320
Sky
overcast from 7,500 ft
Remarks
braking action good during the descent RY19
PC12 at 15,000 ft, 1 nm north, 4:47 pm PDT (23:47 UTC): light rime icing above 15,000 ft. 537 nm along the route, 1 nm north of the line.
as filed, and in English
```
JAC UA /OV JAC200025/TM 2347/FL150/TP PC12/IC LGT RIME 150 /ZLC
```
Report
a routine report filed through JAC
Where
25 nm south (200°) of JAC
Time
23:47 UTC
Height
at 15,000 ft
Aircraft
PC12
Icing
light rime at 15,000 ft zlc

12 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 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 16 forecast points nearest it (SEA, YKM, LWS, BOI, DLN, PIH, LND, RKS, DEN, GLD, GCK, GAG, OKC, FSM, SHV, MSY). A plus sign is a headwind, a minus sign a tailwind.

Height	Average wind	Head- or tailwind	Temperature	Ground speed	Time en route	Arrival
5,500 ft	210° at 11 kt	+3 kt	17 °C	117 kt	15 h 29 min	12:17 pm CDT (17:17 UTC)
7,500 ft	200° at 15 kt	+4 kt	9 °C	116 kt	15 h 37 min	12:25 pm CDT (17:25 UTC)
9,500 ft	210° at 15 kt	+2 kt	7 °C	118 kt	15 h 21 min	12:09 pm CDT (17:09 UTC)
11,500 ft	220° at 18 kt	−1 kt	3 °C	121 kt	14 h 58 min	11:46 am CDT (16:46 UTC)
13,500 ft	220° at 19 kt	−3 kt	-1 °C	123 kt	14 h 43 min	11:31 am CDT (16:31 UTC)
15,500 ft	230° at 21 kt	−4 kt	-5 °C	124 kt	14 h 36 min	11:24 am CDT (16:24 UTC)
17,500 ft	230° at 22 kt	−5 kt	-9 °C	125 kt	14 h 29 min	11:17 am CDT (16:17 UTC)
18,000 ft FL180	230° at 23 kt	−6 kt	-10 °C	126 kt	14 h 22 min	11:10 am CDT (16:10 UTC)
24,000 ft FL240	230° at 26 kt	−7 kt	-20 °C	127 kt	14 h 16 min	11:04 am CDT (16:04 UTC)
30,000 ft FL300	240° at 32 kt	−14 kt	-32 °C	134 kt	13 h 31 min	10:19 am CDT (15:19 UTC)
34,000 ft FL340	250° at 39 kt	−23 kt	-39 °C	143 kt	12 h 40 min	9:28 am CDT (14:28 UTC)
39,000 ft FL390	260° at 43 kt	−31 kt	-47 °C	151 kt	12 h	8:48 am CDT (13:48 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; 22 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°
LWS	used from 149 nm out; 61 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°
BOI	used from 298 nm out; 97 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°
DLN	used from 348 nm out; 83 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°
PIH	used from 448 nm out; 56 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°
LND	used from 547 nm out; 73 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°
RKS	used from 647 nm out; 38 nm from the line			190/43	210/65 3°	210/57 -9°	210/56 -21°	210/47 -33°	230/63 -37°	240/77 -46°
DEN	used from 796 nm out; 68 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°
GLD	used from 945 nm out; 68 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°
GCK	used from 1045 nm out; 38 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°
GAG	used from 1144 nm out; 50 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°
OKC	used from 1244 nm out; 51 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°
FSM	used from 1393 nm out; 93 nm from the line	200/18	210/19 15°	230/22 13°	250/18 7°	270/20 -5°	280/24 -16°	280/35 -30°	290/37 -40°	300/40 -52°
SHV	used from 1492 nm out; 62 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°
MSY	used from 1691 nm out; 95 nm from the line	L/V	020/6 18°	L/V 12°	300/11 7°	330/15 -4°	320/22 -16°	330/38 -32°	350/47 -42°	340/56 -52°

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
SEA Seattle, WA	departure	no report just now	432 ft
PSC Pasco, WA	149 nm out, 9 nm southwest of the line, tower	no report just now	410 ft
ALW Walla Walla, WA	189 nm out, 5 nm west of the line, tower	no report just now	1,194 ft
IDA Idaho Falls, ID	487 nm out, 11 nm south of the line, tower	no report just now	4,743 ft
PNA Pinedale, WY	597 nm out, 6 nm northeast of the line	no report just now	7,096 ft
CFO Denver, CO	895 nm out, 9 nm southwest of the line, tower	no report just now	5,515 ft
LIC Limon, CO	945 nm out, 10 nm southwest of the line	no report just now	5,374 ft
GCK Garden City, KS	1104 nm out, 11 nm northeast of the line, tower	no report just now	2,890 ft
PWA Oklahoma City, OK	1313 nm out, 7 nm southwest of the line, tower	no report just now	1,299 ft
DTN Shreveport, LA	1572 nm out, 13 nm southwest of the line, tower	no report just now	179 ft
BTR Baton Rouge, LA	1751 nm out, 10 nm south of the line, tower	no report just now	69 ft
MSY New Orleans, LA	destination	no report just now	3 ft

The highest airport on this list sits at 7,096 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At MSY when you get there the forecast at the estimated arrival, 8:48 am CDT (13:48 UTC)

MSY 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 SEA 6:27 pm PDT (01:27 UTC), at MSY 6:33 pm CDT (23:33 UTC) (civil twilight ends 6:57 pm CDT (23:57 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 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: Seattle-Tacoma International, Louis Armstrong New Orleans International.