Plan a flight · Mon 5:19 am PDT (12:19 UTC)

Seattle-Tacoma International to Birmingham-Shuttlesworth International SEA → BHM

1,804 nautical miles (2,075 statute miles) east on a straight line, true course 105°, about 089° magnetic at the departure end (variation 16E). At 120 knots that is 12 h 02 min at the quickest height in today's winds (39,000 ft, a 30-knot tailwind), arriving about 7:21 pm CDT (00:21 UTC), after sunset at the destination. 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 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 TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the route from 30 to 329 nm out.
AIRMET ZULU 2C: moderate icing up to 18,000 ft. Over the route from 169 to 448 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 179 to 717 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 259 to 937 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 458 to 658 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 717 to 917 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 727 to 817 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Near the route, 737 nm along the route.
AIRMET TANGO 2W: 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 1016 to 1445 nm out.
AIRMET SIERRA 1E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, mist, fog). Near the route, at the destination end.

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

urgent B763 at 2,000 ft, 11 nm northeast, 4:57 am PDT (11:57 UTC): a routine report with nothing remarked on. 1265 nm along the route, 11 nm northeast of the line.
as filed, and in English
```
FOE UUA /OV 130003/TM 1157/FL020/TP B763/WV LLWS
```
Report
an urgent report filed through FOE
Where
wind from 130° at 3 knots
Time
11:57 UTC
Height
at 2,000 ft
Aircraft
B763
Wind
low-level wind shear
BE9L at 17,000 ft, 24 nm southwest, 2:42 am PDT (09:42 UTC): light rime icing from 15,000 ft to 17,000 ft, 0 °C, remarks: zdvwc. 707 nm along the route, 24 nm southwest of the line.
as filed, and in English
```
CPR UA /OV DDY250025/TM 0942/FL170/TP BE9L/TA 00/IC LGT RIME 150-170/RM ZDVWC
```
Report
a routine report filed through CPR
Where
25 nm west (250°) of DDY
Time
09:42 UTC
Height
at 17,000 ft
Aircraft
BE9L
Temperature
0 °C
Icing
light rime from 15,000 ft to 17,000 ft
Remarks
zdvwc
CRJ7 at 36,000 ft, 4 nm south, 5:09 am PDT (12:09 UTC): light chop turbulence, remarks: zdvwc. 996 nm along the route, 4 nm south of the line.
as filed, and in English
```
LBF UA /OV LBF/TM 1209/FL360/TP CRJ7/TB LGT CHOP/RM ZDVWC
```
Report
a routine report filed through LBF
Where
over LBF
Time
12:09 UTC
Height
at 36,000 ft
Aircraft
CRJ7
Turbulence
light chop
Remarks
zdvwc
PC12 at 22,000 ft, 5 nm south, 5:00 am PDT (12:00 UTC): light rime icing, -9 °C, remarks: no icing at FL200 zkcfdc xj. 1216 nm along the route, 5 nm south of the line.
as filed, and in English
```
MHK UA /OV MHK/TM 1200/FL220/TP PC12/TA M09/IC LGT RIME/RM NEG ICING AT FL200 /ZKCFDC XJ
```
Report
a routine report filed through MHK
Where
over MHK
Time
12:00 UTC
Height
at 22,000 ft
Aircraft
PC12
Temperature
−9 °C
Icing
light rime
Remarks
no icing at FL200 zkcfdc xj

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 14 forecast points nearest it (SEA, YKM, LWS, DLN, LND, BFF, GRI, SLN, MKC, SGF, CGI, MEM, HSV, BHM). 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	250° at 18 kt	−10 kt		130 kt	13 h 53 min	9:12 pm CDT (02:12 UTC)
5,500 ft	260° at 18 kt	−13 kt	23 °C	133 kt	13 h 34 min	8:53 pm CDT (01:53 UTC)
7,500 ft	250° at 15 kt	−10 kt	7 °C	130 kt	13 h 53 min	9:12 pm CDT (02:12 UTC)
9,500 ft	250° at 15 kt	−9 kt	5 °C	129 kt	13 h 59 min	9:18 pm CDT (02:18 UTC)
11,500 ft	240° at 15 kt	−8 kt	2 °C	128 kt	14 h 06 min	9:25 pm CDT (02:25 UTC)
13,500 ft	240° at 16 kt	−8 kt	-2 °C	128 kt	14 h 06 min	9:25 pm CDT (02:25 UTC)
15,500 ft	240° at 16 kt	−7 kt	-6 °C	127 kt	14 h 12 min	9:31 pm CDT (02:31 UTC)
17,500 ft	240° at 16 kt	−7 kt	-11 °C	127 kt	14 h 12 min	9:31 pm CDT (02:31 UTC)
18,000 ft FL180	240° at 16 kt	−7 kt	-12 °C	127 kt	14 h 12 min	9:31 pm CDT (02:31 UTC)
24,000 ft FL240	240° at 27 kt	−12 kt	-23 °C	132 kt	13 h 40 min	8:59 pm CDT (01:59 UTC)
30,000 ft FL300	260° at 36 kt	−26 kt	-32 °C	146 kt	12 h 21 min	7:40 pm CDT (00:40 UTC)
34,000 ft FL340	260° at 39 kt	−29 kt	-38 °C	149 kt	12 h 06 min	7:25 pm CDT (00:25 UTC)
39,000 ft FL390	260° at 38 kt	−30 kt	-46 °C	150 kt	12 h 02 min	7:21 pm CDT (00:21 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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	350/5	010/6 0°	010/9 -4°	010/27 -6°	010/51 -15°	360/58 -26°	360/60 -41°	350/55 -48°	340/30 -45°
YKM	used from 50 nm out; 33 nm from the line	360/6	360/11 -1°	030/20 -7°	040/21 -11°	020/55 -18°	010/84 -26°	010/79 -40°	010/45 -42°	350/23 -42°
LWS	used from 149 nm out; 52 nm from the line	L/V	340/5 -3°	L/V -6°	040/7 -10°	100/23 -22°	180/30 -31°	190/11 -34°	200/11 -36°	220/23 -40°
DLN	used from 349 nm out; 51 nm from the line			190/10 -4°	220/23 -4°	210/21 -18°	210/43 -28°	210/60 -33°	210/72 -37°	210/67 -44°
LND	used from 548 nm out; 93 nm from the line			240/10 3°	240/30 0°	220/42 -13°	230/52 -23°	220/54 -33°	220/52 -36°	220/53 -44°
BFF	used from 747 nm out; 94 nm from the line		280/28	260/39 11°	240/34 5°	210/38 -11°	210/52 -22°	230/61 -31°	230/61 -36°	240/56 -45°
GRI	used from 996 nm out; 91 nm from the line		230/39 23°	230/32 15°	210/29 7°	230/31 -8°	230/43 -21°	250/52 -31°	260/59 -35°	260/59 -46°
SLN	used from 1146 nm out; 51 nm from the line	230/49	240/41 22°	230/26 15°	220/21 7°	240/38 -8°	240/44 -21°	260/77 -29°	270/70 -36°	270/63 -48°
MKC	used from 1246 nm out; 56 nm from the line	240/49	240/21 20°	220/19 13°	230/21 6°	260/26 -7°	250/37 -19°	270/66 -31°	270/65 -38°	280/60 -48°
SGF	used from 1345 nm out; 43 nm from the line	230/37	260/20 15°	250/16 13°	250/15 8°	260/28 -7°	250/31 -17°	280/59 -31°	280/59 -39°	290/55 -50°
CGI	used from 1495 nm out; 100 nm from the line	260/22	250/15 15°	250/13 11°	250/16 6°	270/29 -7°	280/30 -18°	290/40 -31°	290/55 -40°	300/51 -51°
MEM	used from 1544 nm out; 59 nm from the line	250/19	260/19 17°	270/20 12°	270/16 6°	270/21 -6°	290/27 -17°	300/37 -30°	300/49 -40°	310/40 -51°
HSV	used from 1694 nm out; 67 nm from the line	300/20	310/14 16°	310/18 10°	310/15 4°	320/19 -5°	290/16 -18°	320/36 -32°	320/47 -41°	330/42 -50°
BHM	used from 1744 nm out; 35 nm from the line	310/19	310/15 16°	320/19 11°	330/15 5°	330/23 -5°	320/14 -18°	320/36 -32°	330/44 -40°	340/36 -51°

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
MWH Moses Lake, WA	120 nm out, 19 nm north of the line, tower	no report just now	1,188 ft
LWS Lewiston, ID	229 nm out, 3 nm west of the line, tower	no report just now	1,442 ft
DLN Dillon, MT	428 nm out, 3 nm northwest of the line	no report just now	5,244 ft
CPR Casper, WY	717 nm out, 23 nm south of the line, tower	no report just now	5,344 ft
GUR Guernsey, WY	807 nm out, 24 nm southwest of the line, tower	no report just now	4,401 ft
HDE Holdrege, NE	1076 nm out, 3 nm west of the line	no report just now	2,313 ft
MHK Manhattan, KS	1216 nm out, 6 nm south of the line, tower	no report just now	1,066 ft
FOE Topeka, KS	1265 nm out, 11 nm northeast of the line, tower	no report just now	1,077 ft
NQA Millington, TN	1614 nm out, 8 nm southwest of the line, tower	no report just now	322 ft
OLV Olive Branch, MS	1634 nm out, 24 nm southwest of the line, tower	no report just now	401 ft
BHM Birmingham, AL	destination	no report just now	650 ft

The highest airport on this list sits at 5,344 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At BHM when you get there the forecast at the estimated arrival, 7:21 pm CDT (00:21 UTC)

BHM 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 6:25 pm PDT (01:25 UTC), at BHM 6:17 pm CDT (23:17 UTC) (civil twilight ends 6:42 pm CDT (23:42 UTC)). At 120 knots the arrival at BHM is after sunset there (6:17 pm CDT (23:17 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 Plains · 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, Birmingham-Shuttlesworth International.