Plan a flight · Sun 9:34 pm EDT (01:34 UTC)

Wilmington International to Seattle-Tacoma International ILM → SEA

2,132 nautical miles (2,453 statute miles) northwest on a straight line, true course 305°, about 315° magnetic at the departure end (variation 10W). At 120 knots that is 17 h 55 min at the quickest height in today's winds (4,500 ft, a 1-knot headwind), arriving about 12:29 pm PDT (19:29 UTC). Right now ILM is VFR, wind from the west-southwest (250°) at 9 knots, gusting to 19; 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: 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

SIGMET 3W: thunderstorms (a convective SIGMET) up to 31,000 ft, moving from the southwest at 40 knots, until 10:55 pm EDT (02:55 UTC). Over the route from 1435 to 1534 nm out.
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 5W: moderate turbulence below 18,000 ft (due to mountain wave) up to 7,000 ft, from 8:00 pm EDT (00:00 UTC). Over the route from 169 to 259 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 8:00 pm EDT (00:00 UTC). Over the route from 199 to 349 nm out.
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist), from 8:00 pm EDT (00:00 UTC). Over the route from 269 to 389 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), from 8:00 pm EDT (00:00 UTC). Over the route from 1215 to 1853 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft, from 8:00 pm EDT (00:00 UTC). Over the route from 1315 to 1873 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 8:00 pm EDT (00:00 UTC). Over the route from 1524 to 1943 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 8:00 pm EDT (00:00 UTC). Over the route from 1554 to 1584 nm out.
AIRMET ZULU 2C: moderate icing up to 14,000 ft, from 8:00 pm EDT (00:00 UTC). Over the route from 1793 to 2012 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 ILM.

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

PA46 at 23,000 ft, 4 nm south, 7:28 pm EDT (23:28 UTC): moderate chop turbulence from 22,000 ft to 23,000 ft, remarks: ZTLFD-44. 239 nm along the route, 4 nm south of the line.
as filed, and in English
```
TRI UA /OV HMV090010/TM 2328/FL230/TP PA46/TB LGT- MOD CHOP 230-220/RM ZTLFD-44
```
Report
a routine report filed through TRI
Where
10 nm east (090°) of HMV
Time
23:28 UTC
Height
at 23,000 ft
Aircraft
PA46
Turbulence
light moderate chop from 23,000 ft to 22,000 ft
Remarks
ZTLFD-44
A321 at 30,000 ft, 4 nm south, 7:45 pm EDT (23:45 UTC): moderate turbulence. 309 nm along the route, 4 nm south of the line.
as filed, and in English
```
IND UA /OV AZQ170020/TM 2345/FL300/TP A321/TB MOD
```
Report
a routine report filed through IND
Where
20 nm south (170°) of AZQ
Time
23:45 UTC
Height
at 30,000 ft
Aircraft
A321
Turbulence
moderate
E75L at 14,000 ft, 7 nm southeast, 7:22 pm EDT (23:22 UTC): moderate turbulence from 14,000 ft to 21,000 ft, remarks: during the climb zlc. 1793 nm along the route, 7 nm southeast of the line.
as filed, and in English
```
MSO UA /OV 32S/TM 2322/FL140/TP E75L/TB MOD 140-210/RM DURC /ZLC
```
Report
a routine report filed through MSO
Where
over 32S
Time
23:22 UTC
Height
at 14,000 ft
Aircraft
E75L
Turbulence
moderate from 14,000 ft to 21,000 ft
Remarks
during the climb zlc
E145 at 1,800 ft, 5 nm north, 8:38 pm EDT (00:38 UTC): a broken layer from 1,800 ft to 3,000 ft. At the departure end, 5 nm north of the line.
as filed, and in English
```
ILM UA /OV ILM/TM 0038/FL018/TP E145/SK BKN018-TOP030
```
Report
a routine report filed through ILM
Where
over ILM
Time
00:38 UTC
Height
at 1,800 ft
Aircraft
E145
Sky
a broken layer from 1,800 ft, tops 3,000 ft
E75L at 4,000 ft, 9 nm north, 6:45 pm EDT (22:45 UTC): a routine report with nothing remarked on. At the departure end, 9 nm north of the line.
as filed, and in English
```
FAY UA /OV KFAY/TM 2245/FL040/TP E75L/SK BASES 045
```
Report
a routine report filed through FAY
Where
over KFAY
Time
22:45 UTC
Height
at 4,000 ft
Aircraft
E75L
Sky
bases 4,500 ft
SR22 at 8,000 ft, 35 nm southwest, 8:18 pm EDT (00:18 UTC): no turbulence, clear, remarks: thin layer below but can see lights from the ground. 90 nm along the route, 35 nm southwest of the line.
as filed, and in English
```
FLO UA /OV BBP/TM 0018/FL080/TP SR22/SK CLR/TB SMOOTH/RM THIN LAYER BELOW BUT CAN SEE LIGHTS FROM THE GROUND
```
Report
a routine report filed through FLO
Where
over BBP
Time
00:18 UTC
Height
at 8,000 ft
Aircraft
SR22
Sky
clear
Turbulence
smooth
Remarks
thin layer below but can see lights from the ground
B763 at 3,000 ft, 40 nm northeast, 7:26 pm EDT (23:26 UTC): a broken layer above 3,000 ft. 139 nm along the route, 40 nm northeast of the line.
as filed, and in English
```
GSO UA /OV HEVED/TM 2326/FL030/TP B763/SK BKN030
```
Report
a routine report filed through GSO
Where
heved
Time
23:26 UTC
Height
at 3,000 ft
Aircraft
B763
Sky
a broken layer from 3,000 ft
B763 descending, 39 nm northeast, 7:24 pm EDT (23:24 UTC): a broken layer above 3,000 ft. 139 nm along the route, 39 nm northeast of the line.
as filed, and in English
```
GSO UA /OV 10 NE GSO/TM 2324/FLDURD/TP B763/SK BKN030
```
Report
a routine report filed through GSO
Where
10 northeast gso
Time
23:24 UTC
Height
during the descent
Aircraft
B763
Sky
a broken layer from 3,000 ft
SF50 at 7,000 ft, 14 nm southwest, 6:37 pm EDT (22:37 UTC): no turbulence, no icing, imc, remarks: ZTLFD-45. 189 nm along the route, 14 nm southwest of the line.
as filed, and in English
```
HKY UA /OV BZM/TM 2237/FL070/TP SF50/SK IMC/TB NEG/IC NEG/RM ZTLFD-45
```
Report
a routine report filed through HKY
Where
over BZM
Time
22:37 UTC
Height
at 7,000 ft
Aircraft
SF50
Sky
instrument conditions
Turbulence
none
Icing
none
Remarks
ZTLFD-45
PC24 at 4,000 ft, 35 nm northeast, 7:00 pm EDT (23:00 UTC): no turbulence, remarks: 18 final. 209 nm along the route, 35 nm northeast of the line.
as filed, and in English
```
CLT UA /OV CLT005090/TM 2300/FL040/TP PC24/WX FIS/TB SMOOTH/RM 18 FINAL
```
Report
a routine report filed through CLT
Where
90 nm north (005°) of CLT
Time
23:00 UTC
Height
at 4,000 ft
Aircraft
PC24
Weather
fi s
Turbulence
smooth
Remarks
18 final
S22T descending, 13 nm south, 8:24 pm EDT (00:24 UTC): a broken layer above 2,600 ft, remarks: during the descent RY23 tri. 259 nm along the route, 13 nm south of the line.
as filed, and in English
```
TRI UA /OV KTRI050002/TM 0024/FLUNKN/TP S22T/SK BKN026-TOPUNKN/RM DURD RY23 TRI
```
Report
a routine report filed through TRI
Where
2 nm northeast (050°) of KTRI
Time
00:24 UTC
Height
height not given
Aircraft
S22T
Sky
a broken layer from 2,600 ft, tops unknown
Remarks
during the descent RY23 tri
B712 at 600 ft, 10 nm northeast, 9:06 pm EDT (01:06 UTC): overcast. 398 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
LEX UA /OV KLEX/TM 0106/FL006/TP B712/SK OVC B006
```
Report
a routine report filed through LEX
Where
over KLEX
Time
01:06 UTC
Height
at 600 ft
Aircraft
B712
Sky
overcast B006
CRJ9 descending, 10 nm northeast, 7:43 pm EDT (23:43 UTC): overcast up to 6,200 ft; overcast above 1,800 ft. 398 nm along the route, 10 nm northeast of the line.
as filed, and in English
```
LEX UA /OV LEX/TM 2343/FLDURD/TP CRJ9/SK TOPS OVC062 BASES OVC018
```
Report
a routine report filed through LEX
Where
over LEX
Time
23:43 UTC
Height
during the descent
Aircraft
CRJ9
Sky
tops OVC062 bases OVC018
B38M at 23,700 ft, 7 nm southwest, 7:51 pm EDT (23:51 UTC): light turbulence. 538 nm along the route, 7 nm southwest of the line.
as filed, and in English
```
IND UA /OV TTH190030/TM 2351/FL237/TP B38M/TB LGT
```
Report
a routine report filed through IND
Where
30 nm south (190°) of TTH
Time
23:51 UTC
Height
at 23,700 ft
Aircraft
B38M
Turbulence
light

9 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 22 forecast points nearest it (ILM, FLO, RDU, TRI, LOU, IND, SPI, BRL, DSM, OMA, FSD, ONL, PIR, RAP, MLS, BIL, GTF, DLN, 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	260° at 3 kt	+1 kt	11 °C	119 kt	17 h 55 min	12:29 pm PDT (19:29 UTC)
6,500 ft	290° at 5 kt	+4 kt	10 °C	116 kt	18 h 23 min	12:57 pm PDT (19:57 UTC)
8,500 ft	280° at 7 kt	+6 kt	7 °C	114 kt	18 h 42 min	1:16 pm PDT (20:16 UTC)
10,500 ft	270° at 9 kt	+8 kt	3 °C	112 kt	19 h 02 min	1:36 pm PDT (20:36 UTC)
12,500 ft	260° at 12 kt	+10 kt	0 °C	110 kt	19 h 23 min	1:57 pm PDT (20:57 UTC)
14,500 ft	260° at 14 kt	+11 kt	-4 °C	109 kt	19 h 34 min	2:08 pm PDT (21:08 UTC)
16,500 ft	260° at 16 kt	+13 kt	-8 °C	107 kt	19 h 56 min	2:30 pm PDT (21:30 UTC)
18,000 ft FL180	250° at 18 kt	+14 kt	-11 °C	106 kt	20 h 07 min	2:41 pm PDT (21:41 UTC)
24,000 ft FL240	250° at 25 kt	+20 kt	-21 °C	100 kt	21 h 19 min	3:53 pm PDT (22:53 UTC)
30,000 ft FL300	250° at 30 kt	+21 kt	-34 °C	99 kt	21 h 32 min	4:06 pm PDT (23:06 UTC)
34,000 ft FL340	250° at 38 kt	+28 kt	-41 °C	92 kt	23 h 10 min	5:44 pm PDT (00:44 UTC)
39,000 ft FL390	260° at 43 kt	+37 kt	-48 °C	83 kt	25 h 41 min	8:15 pm PDT (03:15 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
ILM	used from 0 nm out; 25 nm from the line	230/27	220/35 14°	230/45 13°	230/48 8°	240/59 -4°	230/57 -14°	220/66 -30°	210/66 -40°	210/59 -52°
FLO	used from 50 nm out; 56 nm from the line	240/25	270/23 11°	250/36 10°	240/38 7°	240/50 -4°	230/66 -15°	220/75 -30°	210/77 -40°	220/73 -52°
RDU	used from 100 nm out; 63 nm from the line	240/28	250/22 10°	230/30 11°	230/40 7°	230/45 -4°	220/69 -15°	220/83 -29°	210/84 -40°	220/75 -52°
TRI	used from 149 nm out; 84 nm from the line		310/28 11°	320/32 7°	330/30 2°	300/28 -9°	280/34 -21°	250/37 -31°	240/39 -38°	250/35 -48°
LOU	used from 349 nm out; 71 nm from the line	320/15	340/24 14°	330/28 9°	340/34 4°	340/37 -9°	340/42 -20°	320/39 -35°	320/45 -39°	330/40 -47°
IND	used from 498 nm out; 56 nm from the line	320/10	350/30 16°	350/32 10°	350/30 4°	340/31 -10°	340/42 -21°	340/49 -37°	320/46 -41°	320/47 -47°
SPI	used from 598 nm out; 35 nm from the line	210/13	260/11 17°	270/18 10°	290/21 4°	310/20 -8°	330/25 -19°	320/49 -34°	320/60 -44°	320/59 -50°
BRL	used from 697 nm out; 18 nm from the line	200/20	250/21 16°	240/22 10°	260/20 5°	270/16 -7°	290/22 -18°	320/41 -34°	320/56 -43°	310/68 -53°
DSM	used from 797 nm out; 41 nm from the line	200/32	240/27 17°	260/19 10°	260/16 5°	260/19 -7°	240/22 -19°	270/20 -32°	270/38 -42°	290/58 -53°
OMA	used from 946 nm out; 66 nm from the line	190/34	230/34 19°	250/25 12°	250/18 6°	250/22 -7°	250/28 -19°	260/34 -32°	260/39 -41°	280/56 -51°
FSD	used from 996 nm out; 51 nm from the line	200/16	220/20 17°	240/26 13°	230/19 6°	240/25 -9°	240/28 -20°	250/39 -33°	250/44 -43°	260/63 -52°
ONL	used from 1046 nm out; 50 nm from the line		200/20 17°	230/26 14°	240/21 7°	250/27 -9°	260/32 -19°	240/44 -34°	240/56 -41°	250/62 -51°
PIR	used from 1146 nm out; 44 nm from the line		L/V 17°	230/13 12°	220/22 6°	250/31 -9°	250/34 -21°	240/50 -35°	230/61 -43°	240/62 -51°
RAP	used from 1245 nm out; 41 nm from the line		120/15 12°	180/22 11°	220/26 5°	230/35 -9°	240/40 -22°	240/50 -37°	240/51 -41°	240/47 -47°
MLS	used from 1395 nm out; 83 nm from the line		120/22 5°	170/18 4°	200/33 1°	230/49 -10°	230/58 -21°	220/54 -37°	230/64 -44°	250/74 -49°
BIL	used from 1494 nm out; 38 nm from the line		080/24	130/14 -1°	180/33 0°	210/43 -10°	220/58 -21°	200/55 -36°	220/75 -44°	240/83 -48°
GTF	used from 1644 nm out; 78 nm from the line		070/21	080/18 -6°	120/5 -5°	180/30 -14°	200/53 -24°	210/80 -38°	220/83 -44°	230/68 -46°
DLN	used from 1694 nm out; 67 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°
LWS	used from 1793 nm out; 97 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°
GEG	used from 1943 nm out; 43 nm from the line		050/18 -2°	060/19 -8°	L/V -11°	160/11 -24°	190/17 -31°	200/19 -35°	220/14 -37°	250/11 -41°
YKM	used from 1992 nm out; 58 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 2092 nm out; 20 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
ILM Wilmington, NC	departure	VFR Sky: scattered clouds at 2,300 feet, a broken layer at 3,900 feet	from the west-southwest (250°) at 9 knots, gusting to 19	10+ mi	3,900 ft	31 ft	8:53 pm EDT (00:53 UTC)
VUJ Albemarle, NC	130 nm out, 7 nm southwest of the line, tower	VFR Sky: overcast at 7,000 feet	from the southwest (220°) at 7 knots	10+ mi	7,000 ft	609 ft	01:15 UTC
LEX Lexington, KY	398 nm out, 10 nm northeast of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,500 feet	from the west (270°) at 6 knots	9 mi	800 ft	979 ft	00:59 UTC
DEC Decatur, IL	618 nm out, 5 nm northwest of the line, tower	VFR	calm	10+ mi	none	681 ft	00:54 UTC
SPI Springfield, IL	657 nm out, 15 nm south of the line, tower	VFR	from the south-southeast (160°) at 6 knots	10+ mi	none	597 ft	00:52 UTC
DSM Des Moines, IA	867 nm out, 8 nm south of the line, tower	VFR Sky: a broken layer at 20,000 feet	from the south (170°) at 10 knots	10+ mi	20,000 ft	957 ft	00:54 UTC
PHP Philip, SD	1245 nm out, 5 nm south of the line	IFR Sky: overcast at 900 feet Weather: light rain	from the east-southeast (110°) at 3 knots	7 mi	900 ft	2,209 ft	01:28 UTC
EFC Belle Fourche, SD	1345 nm out, 4 nm northwest of the line	no report just now				3,190 ft
BIL Billings, MT	1554 nm out, 6 nm north of the line, tower	IFR Sky: a broken layer at 800 feet, overcast at 1,200 feet Weather: light snow, mist	from the north (010°) at 12 knots	4 mi	800 ft	3,662 ft	01:23 UTC
MSO Missoula, MT	1793 nm out, 17 nm north of the line, tower	marginal VFR Sky: a few clouds at 800 feet, overcast at 2,400 feet Weather: light rain	from the north (010°) at 4 knots	7 mi	2,400 ft	3,205 ft	01:10 UTC
MWH Moses Lake, WA	2012 nm out, 3 nm east of the line, tower	VFR Sky: overcast at 10,000 feet	from the northeast (050°) at 13 knots, gusting to 18	10+ mi	10,000 ft	1,188 ft	00:52 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 3,662 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, 12:29 pm PDT (19:29 UTC)

Wind from the west at 6 knots, visibility more than 6 miles, 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 ILM, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind from the southwest at 12 knots, visibility more than 6 miles, scattered clouds at 3,500 feet
From Mon 4:00 am EDT (08:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, a few clouds at 4,500 feet
From Mon 11:00 am EDT (15:00 UTC): wind from the west-northwest at 12 knots, gusting to 18, visibility more than 6 miles, a broken layer at 4,000 feet
From Mon 5:00 pm EDT (21:00 UTC): wind from the north-northwest at 8 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/8508 Johnsontown, NC 1 nm from the route, at the departure end · security · ZDC
6/8713 Maxton, NC, Friday, October 16, 2026 through Sunday, October 18, 2026 UTC 11 nm from the route, at the departure end · air shows/sports · starts Friday 16 October · ZDC

Daylight

Sunset at ILM 6:41 pm EDT (22:41 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 Southeast · loop National Weather Service

Radar now, the central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · 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: Wilmington International, Seattle-Tacoma International.