Plan a flight · Mon 3:29 am EDT (07:29 UTC)

Willow Run Airport to Los Angeles International YIP → LAX

1,708 nautical miles (1,966 statute miles) west on a straight line, true course 265°, about 271° magnetic at the departure end (variation 6W). At 120 knots that is 17 h 05 min at the quickest height in today's winds (8,500 ft, a 20-knot headwind), arriving about 5:34 pm PDT (00:34 UTC). Right now YIP is IFR, wind from the west (260°) at 6 knots; LAX is marginal VFR, wind from the south (190°) at 6 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 C12C: thunderstorms (a convective SIGMET) up to 25,000 ft, moving from the southwest at 40 knots, until 4:55 am EDT (08:55 UTC). Near the route, 1019 nm along the route.
as issued
```
WSUS32 KKCI 120655
MKCC WST 120655
CONVECTIVE SIGMET 12C
VALID UNTIL 0855Z
CO NM
FROM 40W PUB-30SSE PUB-30W CIM-50WSW ALS-40W PUB
DMSHG AREA TS MOV FROM 22040KT. TOPS TO FL250.
```
AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 160 nm of 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 320 to 889 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 899 to 1488 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 909 to 1279 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 989 to 1129 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1169 to 1488 nm out.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 1259 to 1429 nm out.
AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1359 to 1439 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1399 to 1469 nm out.
AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 1528 to 1698 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 YIP.

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

A321 at 31,000 ft, 12 nm north, 2:41 am EDT (06:41 UTC): moderate turbulence, remarks: mtw +/-15KT zdvwc. 979 nm along the route, 12 nm north of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0641/FL310/TP A321/TB MOD/RM MTW +/-15KT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:41 UTC
Height
at 31,000 ft
Aircraft
A321
Turbulence
moderate
Remarks
mtw +/-15KT zdvwc
A333 descending, 8 nm east, 1:44 am EDT (05:44 UTC): a routine report with nothing remarked on. At the departure end, 8 nm east of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0544/FLDURD/TP A333/SK TOPS 025
```
Report
a routine report filed through DTW
Where
over DTW
Time
05:44 UTC
Height
during the descent
Aircraft
A333
Sky
tops 2,500 ft
B739 descending, 8 nm east, 12:54 am EDT (04:54 UTC): a routine report with nothing remarked on. At the departure end, 8 nm east of the line.
as filed, and in English
```
DTW UA /OV DTW/TM 0454/FLDURD/TP B739/SK BASES 011
```
Report
a routine report filed through DTW
Where
over DTW
Time
04:54 UTC
Height
during the descent
Aircraft
B739
Sky
bases 1,100 ft
B738 at 1,700 ft, 38 nm south, 2:20 am EDT (06:20 UTC): overcast from 1,700 ft to 2,000 ft, remarks: during the descent. At the departure end, 38 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0620/FL017/TP B738/SK OVC017-TOP020/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
06:20 UTC
Height
at 1,700 ft
Aircraft
B738
Sky
overcast from 1,700 ft, tops 2,000 ft
Remarks
during the descent
B738 at 1,800 ft, 38 nm south, 1:18 am EDT (05:18 UTC): overcast from 1,800 ft to 2,700 ft, remarks: during the climb. At the departure end, 38 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0518/FL018/TP B738/SK OVC018-TOP027/RM DURC
```
Report
a routine report filed through TOL
Where
over KTOL
Time
05:18 UTC
Height
at 1,800 ft
Aircraft
B738
Sky
overcast from 1,800 ft, tops 2,700 ft
Remarks
during the climb
B738 at 1,300 ft, 38 nm south, 12:45 am EDT (04:45 UTC): overcast from 1,300 ft to 3,000 ft, remarks: during the descent. At the departure end, 38 nm south of the line.
as filed, and in English
```
TOL UA /OV KTOL/TM 0445/FL013/TP B738/SK OVC013-TOP030/RM DURD
```
Report
a routine report filed through TOL
Where
over KTOL
Time
04:45 UTC
Height
at 1,300 ft
Aircraft
B738
Sky
overcast from 1,300 ft, tops 3,000 ft
Remarks
during the descent
A21N at 33,000 ft, 12 nm north, 2:59 am EDT (06:59 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. 979 nm along the route, 12 nm north of the line.
as filed, and in English
```
COS UA /OV BRK/TM 0659/FL330/TP A21N/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through COS
Where
over BRK
Time
06:59 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
A320 at 31,000 ft, 16 nm south, 2:58 am EDT (06:58 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. 1019 nm along the route, 16 nm south of the line.
as filed, and in English
```
PUB UA /OV PUB260040/TM 0658/FL310/TP A320/TB LGT CHOP/RM MTW +/-10KT 100FT. ZDVWC
```
Report
a routine report filed through PUB
Where
40 nm west (260°) of PUB
Time
06:58 UTC
Height
at 31,000 ft
Aircraft
A320
Turbulence
light chop
Remarks
mtw a 10-knot loss of airspeed 100FT zdvwc
CRJ2 at 22,000 ft, 39 nm north, 2:35 am EDT (06:35 UTC): no turbulence up to 26,000 ft, no icing, clear from 22,000 ft to 60,000 ft, remarks: during the descent ZDVWC-26. 1019 nm along the route, 39 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN220060/TM 0635/FL220/TP CRJ2/SK SKC/TB NEG BLO 260/IC NEG/RM DURD/ ZDVWC-26
```
Report
a routine report filed through DEN
Where
60 nm southwest (220°) of DEN
Time
06:35 UTC
Height
at 22,000 ft
Aircraft
CRJ2
Sky
clear
Turbulence
no below 26,000 ft
Icing
none
Remarks
during the descent ZDVWC-26
B738 at 23,000 ft, 49 nm northwest, 2:23 am EDT (06:23 UTC): no turbulence from 23,000 ft to 26,000 ft, clear from 23,000 ft to 60,000 ft, remarks: during the descent sskii star ZDVWC-06. 1019 nm along the route, 49 nm northwest of the line.
as filed, and in English
```
DEN UA /OV DEN230060/TM 0623/FL230/TP B738/SK SKC/TB NEG 230-260/RM DURD SSKII STAR. ZDVWC-06
```
Report
a routine report filed through DEN
Where
60 nm southwest (230°) of DEN
Time
06:23 UTC
Height
at 23,000 ft
Aircraft
B738
Sky
clear
Turbulence
no from 23,000 ft to 26,000 ft
Remarks
during the descent sskii star ZDVWC-06
E170 at 22,500 ft, 37 nm north, 1:06 am EDT (05:06 UTC): light to moderate turbulence up to 23,000 ft, remarks: during the descent tbarr star ZDVWC-13. 1019 nm along the route, 37 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN216057/TM 0506/FL225/TP E170/TB CONS LGT OCNL MOD BLO 230/RM DURD TBARR STAR. ZDVWC-13
```
Report
a routine report filed through DEN
Where
57 nm southwest (216°) of DEN
Time
05:06 UTC
Height
at 22,500 ft
Aircraft
E170
Turbulence
continuous light occasional moderate below 23,000 ft
Remarks
during the descent tbarr star ZDVWC-13
PC12 at 26,000 ft, 4 nm west, 2:27 am EDT (06:27 UTC): light chop turbulence, remarks: ZDVWC-12. 1059 nm along the route, 4 nm west of the line.
as filed, and in English
```
GUC UA /OV HBU090040/TM 0627/FL260/TP PC12/TB OCNL LGT CHOP/RM ZDVWC-12
```
Report
a routine report filed through GUC
Where
40 nm east (090°) of HBU
Time
06:27 UTC
Height
at 26,000 ft
Aircraft
PC12
Turbulence
occasional light chop
Remarks
ZDVWC-12
PC12 at 11,000 ft, 38 nm southeast, 2:58 am EDT (06:58 UTC): light turbulence, no icing, remarks: during the descent arrival KFMN ZDVWC-36. 1159 nm along the route, 38 nm southeast of the line.
as filed, and in English
```
DRO UA /OV DRO/TM 0658/FL110/TP PC12/SK BASE117/TB CONS LGT/IC NEG/RM DURD ARR KFMN. ZDVWC-36
```
Report
a routine report filed through DRO
Where
over DRO
Time
06:58 UTC
Height
at 11,000 ft
Aircraft
PC12
Sky
BASE117
Turbulence
continuous light
Icing
none
Remarks
during the descent arrival KFMN ZDVWC-36
B38M at 14,000 ft, 37 nm northwest, 1:47 am EDT (05:47 UTC): light rime icing, 6 °C. 1469 nm along the route, 37 nm northwest of the line.
as filed, and in English
```
LAS UA /OV LAS059040/TM 0547/FL140/TP B38M/TA 06/IC LGT RIME
```
Report
a routine report filed through LAS
Where
40 nm northeast (059°) of LAS
Time
05:47 UTC
Height
at 14,000 ft
Aircraft
B38M
Temperature
6 °C
Icing
light rime

5 more routine reports are on the map.

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 16 forecast points nearest it (FWA, MKG, JOT, DBQ, BRL, DSM, OMA, GRI, GLD, PUB, ALS, FMN, BCE, PRC, LAS, 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
4,500 ft	230° at 27 kt	+26 kt	15 °C	94 kt	18 h 10 min	6:39 pm PDT (01:39 UTC)
6,500 ft	240° at 25 kt	+25 kt	14 °C	95 kt	17 h 59 min	6:28 pm PDT (01:28 UTC)
8,500 ft	240° at 20 kt	+20 kt	10 °C	100 kt	17 h 05 min	5:34 pm PDT (00:34 UTC)
10,500 ft	230° at 21 kt	+20 kt	6 °C	100 kt	17 h 05 min	5:34 pm PDT (00:34 UTC)
12,500 ft	230° at 22 kt	+21 kt	2 °C	99 kt	17 h 15 min	5:44 pm PDT (00:44 UTC)
14,500 ft	230° at 25 kt	+24 kt	-2 °C	96 kt	17 h 48 min	6:17 pm PDT (01:17 UTC)
16,500 ft	230° at 29 kt	+28 kt	-6 °C	92 kt	18 h 34 min	7:03 pm PDT (02:03 UTC)
18,000 ft FL180	230° at 31 kt	+31 kt	-9 °C	89 kt	19 h 11 min	7:40 pm PDT (02:40 UTC)
24,000 ft FL240	240° at 39 kt	+39 kt	-20 °C	81 kt	21 h 05 min	9:34 pm PDT (04:34 UTC)
30,000 ft FL300	240° at 49 kt	+51 kt	-31 °C	69 kt	24 h 45 min	1:14 am PDT (08:14 UTC)
34,000 ft FL340	250° at 54 kt	+57 kt	-37 °C	63 kt	27 h 07 min	3:36 am PDT (10:36 UTC)
39,000 ft FL390	250° at 51 kt	+54 kt	-47 °C	66 kt	25 h 53 min	2:22 am PDT (09:22 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
FWA	used from 0 nm out; 88 nm from the line	300/17	320/20 16°	330/20 10°	340/15 3°	310/27 -8°	320/37 -20°	330/52 -36°	330/65 -43°	330/60 -50°
MKG	used from 100 nm out; 69 nm from the line	260/22	290/16 15°	300/11 10°	290/5 3°	300/26 -9°	300/32 -20°	320/48 -36°	320/61 -45°	310/74 -53°
JOT	used from 150 nm out; 41 nm from the line	250/23	270/22 15°	250/16 10°	240/9 4°	280/22 -7°	280/29 -19°	300/29 -34°	290/50 -43°	300/64 -52°
DBQ	used from 250 nm out; 66 nm from the line	230/33	250/30 16°	280/15 9°	260/15 5°	260/21 -7°	260/24 -20°	250/37 -33°	270/42 -43°	280/63 -52°
BRL	used from 300 nm out; 47 nm from the line	230/24	240/29 15°	290/16 10°	280/15 4°	260/23 -7°	260/32 -19°	260/36 -33°	280/48 -41°	280/59 -52°
DSM	used from 400 nm out; 40 nm from the line	230/40	250/33 17°	250/18 12°	240/17 5°	260/28 -8°	270/34 -19°	260/41 -33°	260/55 -41°	270/62 -51°
OMA	used from 499 nm out; 47 nm from the line	220/47	240/33 19°	250/18 11°	230/17 6°	260/29 -8°	250/33 -19°	250/51 -33°	260/61 -40°	270/62 -49°
GRI	used from 599 nm out; 60 nm from the line		230/35 21°	230/23 13°	220/20 7°	240/25 -8°	240/37 -20°	250/49 -33°	260/57 -38°	260/58 -47°
GLD	used from 749 nm out; 68 nm from the line		230/49	230/42 15°	220/26 8°	240/18 -7°	230/27 -21°	240/62 -30°	240/61 -35°	250/57 -47°
PUB	used from 899 nm out; 68 nm from the line			230/25 13°	230/32 6°	220/44 -8°	230/49 -21°	240/70 -28°	240/67 -34°	240/58 -46°
ALS	used from 1049 nm out; 54 nm from the line				230/37 4°	220/54 -9°	230/62 -22°	240/77 -26°	240/74 -33°	230/59 -45°
FMN	used from 1149 nm out; 54 nm from the line			220/28 9°	220/40 2°	220/53 -10°	220/62 -22°	230/79 -28°	240/91 -34°	230/71 -45°
BCE	used from 1249 nm out; 96 nm from the line				220/27 -1°	210/40 -13°	220/54 -21°	220/64 -30°	220/64 -34°	220/52 -44°
PRC	used from 1399 nm out; 90 nm from the line			210/25 5°	200/30 1°	220/55 -10°	220/61 -21°	220/84 -28°	230/90 -34°	230/73 -45°
LAS	used from 1449 nm out; 56 nm from the line		210/21 10°	200/18 5°	200/23 -2°	210/49 -14°	210/63 -21°	220/58 -30°	220/61 -35°	210/56 -44°
ONT	used from 1598 nm out; 48 nm from the line	190/8	190/19 6°	210/23 4°	210/29 -3°	210/47 -13°	210/49 -19°	220/47 -30°	220/50 -36°	220/55 -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
YIP Detroit, MI	departure	IFR Sky: overcast at 900 feet	from the west (260°) at 6 knots	10+ mi	900 ft	715 ft	2:53 am EDT (06:53 UTC)
JXN Jackson, MI	40 nm out, 5 nm north of the line, tower	low IFR Weather: mist	from the south-southwest (210°) at 3 knots	0.75 mi	none	1,000 ft	07:22 UTC
ARR Chicago/Aurora, IL	220 nm out, 3 nm southwest of the line, tower	VFR	calm	10+ mi	none	712 ft	06:52 UTC
CSQ Creston, IA	490 nm out, 4 nm northwest of the line	VFR	from the south (180°) at 10 knots	10+ mi	none	1,299 ft	07:15 UTC
LNK Lincoln, NE	599 nm out, 18 nm north of the line, tower	VFR	from the south (190°) at 15 knots	10+ mi	none	1,218 ft	06:54 UTC
NRN Norton, KS	749 nm out, 5 nm southwest of the line	VFR	from the south-southwest (200°) at 14 knots, gusting to 19	10+ mi	none	2,384 ft	07:15 UTC
COS Colorado Springs, CO	989 nm out, 7 nm north of the line, tower	VFR Sky: a few clouds at 14,000 feet, a few clouds at 20,000 feet	from the west-southwest (240°) at 7 knots	10+ mi	none	6,187 ft	06:54 UTC
TEX Telluride, CO	1149 nm out, 11 nm north of the line	VFR Sky: a broken layer at 5,000 feet, overcast at 6,000 feet	from the south-southwest (210°) at 6 knots, gusting to 25	10+ mi	5,000 ft	9,069 ft	07:15 UTC
PGA Page, AZ	1329 nm out, 17 nm north of the line	VFR	calm	10+ mi	none	4,316 ft	06:53 UTC
IFP Bullhead City, AZ	1508 nm out, 19 nm southeast of the line, tower	VFR Sky: a few clouds at 3,100 feet, scattered clouds at 10,000 feet, a broken layer at 12,000 feet	from the south-southwest (210°) at 5 knots	10+ mi	12,000 ft	707 ft	07:10 UTC
EMT El Monte, CA	1688 nm out, 1 nm southeast of the line, tower	VFR Sky: a few clouds at 4,400 feet, overcast at 5,500 feet	from the south (170°) at 6 knots	10+ mi	5,500 ft	295 ft	02:45 UTC
LAX Los Angeles, CA	destination	marginal VFR Sky: a few clouds at 1,700 feet, scattered clouds at 2,300 feet, overcast at 2,800 feet Weather: light rain	from the south (190°) at 6 knots	8 mi	2,800 ft	127 ft	11:53 pm PDT (06:53 UTC)

The highest airport on this list sits at 9,069 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At LAX when you get there the forecast at the estimated arrival, 5:34 pm PDT (00:34 UTC)

Wind from the west-southwest at 15 knots, visibility more than 6 miles, a broken layer at 3,500 feet VFR

The whole forecast for LAX

From Sun 11:00 pm PDT (06:00 UTC): wind from the southwest at 6 knots, visibility more than 6 miles, a broken layer at 3,500 feet
From Mon 10:00 am PDT (17:00 UTC): wind from the west-southwest at 15 knots, visibility more than 6 miles, a broken layer at 3,500 feet
From Mon 6:00 pm PDT (01:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, scattered clouds at 4,000 feet

The forecast for YIP, the departure

From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, overcast at 1,500 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the south-southwest at 4 knots, visibility 5 miles, mist, a broken layer at 25,000 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ¾ mile, mist, a broken layer at 300 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 1:00 pm EDT (17:00 UTC): wind from the southwest at 12 knots, gusting to 22, visibility more than 6 miles, a broken layer at 25,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, scattered clouds at 9,000 feet, a broken layer at 20,000 feet

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

6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 23 nm from the route, 1009 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 9 nm from the route, 1508 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local 16 nm from the route, 1508 nm along the route · a VIP movement · starts tomorrow · ZLA
4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 16 nm from the route, at the destination end · security · ZLA

Daylight

Sunset at YIP 6:57 pm EDT (22:57 UTC), at LAX 6:22 pm PDT (01:22 UTC) (civil twilight ends 6:47 pm PDT (01:47 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 central Great Lakes · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar now, the northern 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: Willow Run Airport, Los Angeles International.