Plan a flight · Sun 5:28 pm PDT (00:28 UTC)

Seattle-Tacoma International to Long Beach (Daugherty Field) SEA → LGB

840 nautical miles (966 statute miles) south on a straight line, true course 166°, about 150° magnetic at the departure end (variation 16E). At 120 knots that is 6 h 28 min at the quickest height in today's winds (24,000 ft, a 10-knot tailwind), arriving about 11:56 pm PDT (06:56 UTC), after sunset at the destination. Right now SEA is VFR, wind from the north-northwest (340°) at 10 knots; LGB is VFR, wind from the south (190°) at 5 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: 4 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

AIRMET ZULU 2C: moderate icing up to 14,000 ft. Over the route from 160 to 200 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 190 to 240 nm out.
AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 520 to 660 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 760 to 820 nm out.
AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 40 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 SEA.

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

E75L at 10,000 ft, 27 nm west, 3:04 pm PDT (22:04 UTC): moderate rime icing, -9 °C, remarks: from 10,000 ft to 7,500 ft during the descent. 80 nm along the route, 27 nm west of the line.
as filed, and in English
```
PDX UA /OV PDX360025/TM 2204/FL100/TP E75L/TA M9/IC MOD RIME /RM 100-075 DURD
```
Report
a routine report filed through PDX
Where
25 nm north (360°) of PDX
Time
22:04 UTC
Height
at 10,000 ft
Aircraft
E75L
Temperature
−9 °C
Icing
moderate rime
Remarks
from 10,000 ft to 7,500 ft during the descent
E75L at 18,000 ft, 27 nm east, 4:24 pm PDT (23:24 UTC): moderate turbulence from 18,000 ft to 22,000 ft, remarks: mountain wave a 10-knot loss of airspeed entered by zoa fdcs. 620 nm along the route, 27 nm east of the line.
as filed, and in English
```
LOL UA /OV BIH300011/TM 2324/FL 180/TP E75L/TB MOD 180-220/RM MTN WAVE /-10 ENTERED BY ZOA FDCS AWC-WEB
```
Report
a routine report filed through LOL
Where
11 nm northwest (300°) of BIH
Time
23:24 UTC
Height
at 18,000 ft
Aircraft
E75L
Turbulence
moderate from 18,000 ft to 22,000 ft
Remarks
mountain wave a 10-knot loss of airspeed entered by zoa fdcs
B737 at 14,000 ft, 38 nm east, 2:54 pm PDT (21:54 UTC): moderate turbulence. At the destination end, 38 nm east of the line.
as filed, and in English
```
ONT UA /OV 20N ONT/TM 2154/FL140/TP B737/TB MOD
```
Report
a routine report filed through ONT
Where
20N ont
Time
21:54 UTC
Height
at 14,000 ft
Aircraft
B737
Turbulence
moderate
B738 descending, 37 nm east, 2:37 pm PDT (21:37 UTC): moderate chop turbulence. At the destination end, 37 nm east of the line.
as filed, and in English
```
ONT UA /OV ONT358021/TM 2137/FLDURD/TP B738/TB MODERATE CHOP STARTING AT 130
```
Report
a routine report filed through ONT
Where
21 nm north (358°) of ONT
Time
21:37 UTC
Height
during the descent
Aircraft
B738
Turbulence
moderate chop starting at at 13,000 ft
C182 at 8,000 ft, 23 nm west, 3:52 pm PDT (22:52 UTC): light rime icing, -2 °C. 100 nm along the route, 23 nm west of the line.
as filed, and in English
```
PDX UA /OV PDX040017/TM 2252/FL080/TP C182/TA M02/IC LGT RIME
```
Report
a routine report filed through PDX
Where
17 nm northeast (040°) of PDX
Time
22:52 UTC
Height
at 8,000 ft
Aircraft
C182
Temperature
−2 °C
Icing
light rime
E75L at 9,500 ft, 2 nm north, 4:07 pm PDT (23:07 UTC): light rime icing from 7,000 ft to 9,500 ft, a broken layer above 7,300 ft, -2 °C, remarks: during the descent runway 5. 200 nm along the route, 2 nm north of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 2307/FL095/TP E75L/SK BKN073-TOPSUNKN/TA M2/IC LGT RIME 095-070/RM DURD RWY 5
```
Report
a routine report filed through RDM
Where
over RDM
Time
23:07 UTC
Height
at 9,500 ft
Aircraft
E75L
Sky
a broken layer from 7,300 ft, tops unknown
Temperature
−2 °C
Icing
light rime from 9,500 ft to 7,000 ft
Remarks
during the descent runway 5
E170 at 10,000 ft, 2 nm north, 3:02 pm PDT (22:02 UTC): light rime icing from 7,000 ft to 10,000 ft. 200 nm along the route, 2 nm north of the line.
as filed, and in English
```
RDM UA /OV RDM/TM 2202/FL100/TP E170/SK BASE 065-TOPS UNKN/TA UNKN/IC LGT RIME 100-070
```
Report
a routine report filed through RDM
Where
over RDM
Time
22:02 UTC
Height
at 10,000 ft
Aircraft
E170
Sky
base 065-TOPS unknown
Temperature
UNKN
Icing
light rime from 10,000 ft to 7,000 ft
E75L at 9,000 ft, 7 nm west, 4:05 pm PDT (23:05 UTC): light rime icing, -6 °C, remarks: zse. 210 nm along the route, 7 nm west of the line.
as filed, and in English
```
RDM UA /OV DSD155012/TM 2305/FL090/TP E75L/TA M06/IC LGT RIME/RM ZSE
```
Report
a routine report filed through RDM
Where
12 nm southeast (155°) of DSD
Time
23:05 UTC
Height
at 9,000 ft
Aircraft
E75L
Temperature
−6 °C
Icing
light rime
Remarks
zse
B737 at 27,000 ft, 11 nm east, 3:14 pm PDT (22:14 UTC): remarks: mountain wave a 10-knot loss of airspeed +/-300FT entered by zoa fdcs. 550 nm along the route, 11 nm east of the line.
as filed, and in English
```
RNO UA /OV 3830N11910W/TM 2214/FL270/TP B737/RM MTN WAVE +/-10KTS +/-300FT ENTERED BY ZOA FDCS
```
Report
a routine report filed through RNO
Where
3830N11910W
Time
22:14 UTC
Height
at 27,000 ft
Aircraft
B737
Remarks
mountain wave a 10-knot loss of airspeed +/-300FT entered by zoa fdcs
B38M at 36,000 ft, 35 nm east, 2:43 pm PDT (21:43 UTC): clear from 36,000 ft to 60,000 ft, -40 °C, wind 205° at 55 knots, remarks: produced by skypath. 780 nm along the route, 35 nm east of the line.
as filed, and in English
```
EDW UA /OV EDW154007 /TM 2143 /FL360 /TP B38M /SK SKC /WX FV99SM /TA M40 /WV 20555KT /RM PRODUCED BY SKYPATH
```
Report
a routine report filed through EDW
Where
7 nm southeast (154°) of EDW
Time
21:43 UTC
Height
at 36,000 ft
Aircraft
B38M
Sky
clear
Weather
flight visibility 99 miles
Temperature
−40 °C
Wind
from 205° at 55 knots
Remarks
produced by skypath
B739 at 33,000 ft, 14 nm east, 4:01 pm PDT (23:01 UTC): remarks: mountain wave 10 knots zlawc. 790 nm along the route, 14 nm east of the line.
as filed, and in English
```
SDB UA /OV PMD/TM 2301/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
```
Report
a routine report filed through SDB
Where
over PMD
Time
23:01 UTC
Height
at 33,000 ft
Aircraft
B739
Remarks
mountain wave 10 knots zlawc
B739 at 33,000 ft, 32 nm east, 4:02 pm PDT (23:02 UTC): remarks: mountain wave 10 knots zlawc. 800 nm along the route, 32 nm east of the line.
as filed, and in English
```
DRA UA /OV VCV242015/TM 2302/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
```
Report
a routine report filed through DRA
Where
15 nm southwest (242°) of VCV
Time
23:02 UTC
Height
at 33,000 ft
Aircraft
B739
Remarks
mountain wave 10 knots zlawc
C172 at 5,000 ft, 47 nm west, 4:15 pm PDT (23:15 UTC): remarks: tops 5,000 ft on departure runway 25. At the destination end, 47 nm west of the line.
as filed, and in English
```
OXR UA /OV KOXR/TM 2315/FL050/TP C172/RM TOPS 050 ON DEP RWY25
```
Report
a routine report filed through OXR
Where
over KOXR
Time
23:15 UTC
Height
at 5,000 ft
Aircraft
C172
Remarks
tops 5,000 ft on departure runway 25
E50P at 3,200 ft, 47 nm west, 3:57 pm PDT (22:57 UTC): remarks: bases 3,600 ft on arrival runway 25. At the destination end, 47 nm west of the line.
as filed, and in English
```
OXR UA /OV KOXR/TM 2257/FL032/TP E50P/RM BASES 036 ON ARR RWY25
```
Report
a routine report filed through OXR
Where
over KOXR
Time
22:57 UTC
Height
at 3,200 ft
Aircraft
E50P
Remarks
bases 3,600 ft on arrival runway 25

8 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 9 forecast points nearest it (SEA, PDX, RDM, LKV, RNO, BIH, FAT, WJF, ONT). 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	280° at 4 kt	−2 kt	3 °C	122 kt	6 h 53 min	12:21 am PDT (07:21 UTC)
7,500 ft	320° at 5 kt	−4 kt	-1 °C	124 kt	6 h 46 min	12:14 am PDT (07:14 UTC)
9,500 ft	290° at 5 kt	−2 kt	-2 °C	122 kt	6 h 53 min	12:21 am PDT (07:21 UTC)
11,500 ft	250° at 7 kt	+1 kt	-6 °C	119 kt	7 h 04 min	12:32 am PDT (07:32 UTC)
13,500 ft	260° at 7 kt	0	-10 °C	120 kt	7 h	12:28 am PDT (07:28 UTC)
15,500 ft	270° at 7 kt	−2 kt	-13 °C	122 kt	6 h 53 min	12:21 am PDT (07:21 UTC)
17,500 ft	290° at 7 kt	−3 kt	-16 °C	123 kt	6 h 50 min	12:18 am PDT (07:18 UTC)
18,000 ft FL180	290° at 7 kt	−4 kt	-17 °C	124 kt	6 h 46 min	12:14 am PDT (07:14 UTC)
24,000 ft FL240	300° at 15 kt	−10 kt	-25 °C	130 kt	6 h 28 min	11:56 pm PDT (06:56 UTC)
30,000 ft FL300	280° at 21 kt	−7 kt	-31 °C	127 kt	6 h 37 min	12:05 am PDT (07:05 UTC)
34,000 ft FL340	250° at 23 kt	+1 kt	-35 °C	119 kt	7 h 04 min	12:32 am PDT (07:32 UTC)
39,000 ft FL390	250° at 28 kt	+5 kt	-42 °C	115 kt	7 h 18 min	12:46 am PDT (07:46 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°
PDX	used from 50 nm out; 50 nm from the line	330/7	360/13 0°	040/22 -6°	030/23 -12°	020/64 -18°	010/93 -25°	010/91 -39°	360/62 -40°	350/41 -43°
RDM	used from 150 nm out; 23 nm from the line		010/15 -2°	030/21 -8°	020/26 -12°	020/46 -22°	010/72 -27°	360/47 -34°	340/31 -35°	320/20 -40°
LKV	used from 250 nm out; 53 nm from the line			010/18 -6°	280/7 -11°	290/9 -22°	280/13 -27°	290/20 -31°	260/19 -34°	260/27 -39°
RNO	used from 400 nm out; 65 nm from the line		320/7	260/13 1°	230/21 -7°	210/38 -17°	220/43 -26°	230/54 -29°	230/59 -32°	230/54 -41°
BIH	used from 550 nm out; 63 nm from the line		L/V	210/14 6°	210/20 -2°	230/26 -14°	220/32 -24°	220/63 -27°	220/56 -35°	230/50 -44°
FAT	used from 650 nm out; 45 nm from the line	180/7	170/9 7°	200/20 3°	210/27 -3°	240/27 -14°	230/38 -24°	220/57 -27°	230/42 -33°	230/41 -44°
WJF	used from 700 nm out; 61 nm from the line		220/30 8°	240/28 5°	230/34 -2°	220/34 -13°	220/48 -20°	220/47 -29°	210/48 -34°	220/52 -44°
ONT	used from 800 nm out; 32 nm from the line	230/11	200/17 6°	230/27 4°	230/32 -2°	210/39 -12°	220/51 -20°	220/48 -29°	210/51 -34°	210/52 -44°

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 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)
PLU Puyallup, WA	20 nm out, 4 nm west of the line	VFR Weather: light drizzle	calm	10+ mi	none	537 ft	23:35 UTC
CZK Cascade Locks, OR	110 nm out, 9 nm west of the line	no report just now				151 ft
RDM Redmond, OR	200 nm out, 2 nm north of the line, tower	VFR Sky: a few clouds at 4,000 feet, a broken layer at 4,900 feet	from the north-northwest (330°) at 12 knots	10+ mi	4,900 ft	3,081 ft	23:56 UTC
LKV Lakeview, OR	330 nm out, 4 nm northeast of the line	VFR	from the north (010°) at 16 knots, gusting to 22	10+ mi	none	4,734 ft	23:53 UTC
AAT Alturas, CA	370 nm out, 14 nm west of the line	VFR Sky: a few clouds at 8,000 feet	from the north (360°) at 7 knots	10+ mi	none	4,378 ft	23:55 UTC
RNO Reno, NV	490 nm out, 4 nm west of the line, tower	VFR Sky: scattered clouds at 9,500 feet	from the north-northeast (020°) at 11 knots, gusting to 14	10+ mi	none	4,414 ft	23:55 UTC
CXP Carson City, NV	510 nm out, 7 nm west of the line	VFR	from the west-southwest (250°) at 13 knots, gusting to 20	10+ mi	none	4,704 ft	00:10 UTC
MMH Mammoth Lakes, CA	610 nm out, 14 nm east of the line	VFR Sky: scattered clouds at 9,000 feet	from the southeast (140°) at 19 knots, gusting to 30	10+ mi	none	7,134 ft	23:35 UTC
BFL Bakersfield, CA	740 nm out, 24 nm west of the line, tower	VFR	from the west-northwest (300°) at 11 knots	10+ mi	none	509 ft	23:54 UTC
BUR Burbank, CA	820 nm out, 7 nm northwest of the line, tower	VFR Sky: a few clouds at 3,500 feet, overcast at 4,200 feet	from the south (190°) at 11 knots	10+ mi	4,200 ft	778 ft	23:53 UTC
LGB Long Beach, CA	destination	VFR Sky: a few clouds at 3,600 feet, overcast at 4,300 feet	from the south (190°) at 5 knots	10+ mi	4,300 ft	60 ft	4:53 pm PDT (23:53 UTC)

The highest airport on this list sits at 7,134 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At LGB when you get there the forecast at the estimated arrival, 11:56 pm PDT (06:56 UTC)

Wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet VFR

30% chance between Sun 11:00 pm PDT (06:00 UTC) and 5:00 am PDT (12:00 UTC): light rain showers

The whole forecast for LGB

From Sun 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 12 knots, gusting to 20, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 10,000 feet
30% chance between Sun 5:00 pm PDT (00:00 UTC) and 6:00 pm PDT (01:00 UTC): light rain showers
From Sun 6:00 pm PDT (01:00 UTC): wind from the west-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 12,000 feet
30% chance between Sun 6:00 pm PDT (01:00 UTC) and 11:00 pm PDT (06:00 UTC): light rain showers
From Sun 11:00 pm PDT (06:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
30% chance between Sun 11:00 pm PDT (06:00 UTC) and 5:00 am PDT (12:00 UTC): light rain showers
From Mon 5:00 am PDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a broken layer at 5,000 feet, overcast at 10,000 feet
30% chance between Mon 5:00 am PDT (12:00 UTC) and 11:00 am PDT (18:00 UTC): light rain showers

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

6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 14 nm from the route, 600 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
6/8783 38NM NE BAKERSFIELD, CA, Saturday, October 10, 2026 through Friday, October 23, 2026 UTC 10 nm from the route, 730 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 23 October · ZLA
4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 9 nm from the route, at the destination end · security · ZLA

Daylight

Sunset at SEA 6:27 pm PDT (01:27 UTC), at LGB 6:22 pm PDT (01:22 UTC) (civil twilight ends 6:47 pm PDT (01:47 UTC)). At 120 knots the arrival at LGB is before sunrise there (6:55 am PDT (13:55 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 Pacific Southwest · 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, Long Beach (Daugherty Field).