Plan a flight · Mon 3:04 am EDT (07:04 UTC)

Willow Run Airport to Mineta San Jose International YIP → SJC

1,780 nautical miles (2,048 statute miles) west on a straight line, true course 274°, about 280° magnetic at the departure end (variation 6W). At 120 knots that is 16 h 48 min at the quickest height in today's winds (4,500 ft, a 14-knot headwind), arriving about 4:52 pm PDT (23:52 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 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 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 140 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 290 to 880 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). Near the route, 710 nm along the route.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the route from 860 to 1280 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 900 to 1470 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 980 to 1160 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1040 to 1550 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 1090 to 1140 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1110 to 1540 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 70 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 YIP.

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

PC12 at 17,000 ft, 33 nm south, 12:52 am EDT (04:52 UTC): moderate turbulence, moderate rime icing, -15 °C, remarks: entered by zoa fdcs. 1580 nm along the route, 33 nm south of the line.
as filed, and in English
```
TPH UA /OV OAL/TM 0452/FL 170/TP PC12/TA M15/TB MOD/IC MOD RIME/RM ENTERED BY ZOA FDCS AWC-WEB
```
Report
a routine report filed through TPH
Where
over OAL
Time
04:52 UTC
Height
at 17,000 ft
Aircraft
PC12
Temperature
−15 °C
Turbulence
moderate
Icing
moderate rime
Remarks
entered by zoa fdcs
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, 40 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, 40 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, 40 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, 40 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, 40 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, 40 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
B38M at 21,500 ft, 33 nm south, 12:33 am EDT (04:33 UTC): light turbulence up to 25,000 ft, remarks: during the descent flati star ZDVWC-13. 1000 nm along the route, 33 nm south of the line.
as filed, and in English
```
DEN UA /OV DEN305065/TM 0433/FL215/TP B38M/TB LGT BLO 250/RM DURD FLATI STAR. ZDVWC-13
```
Report
a routine report filed through DEN
Where
65 nm northwest (305°) of DEN
Time
04:33 UTC
Height
at 21,500 ft
Aircraft
B38M
Turbulence
light below 25,000 ft
Remarks
during the descent flati star ZDVWC-13

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, DSM, OMA, ONL, BFF, DEN, RKS, SLC, ELY, BIH, FAT, SAC, SFO). 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	220° at 19 kt	+14 kt	20 °C	106 kt	16 h 48 min	4:52 pm PDT (23:52 UTC)
6,500 ft	230° at 16 kt	+14 kt	14 °C	106 kt	16 h 48 min	4:52 pm PDT (23:52 UTC)
8,500 ft	220° at 19 kt	+16 kt	9 °C	104 kt	17 h 07 min	5:11 pm PDT (00:11 UTC)
10,500 ft	230° at 19 kt	+17 kt	5 °C	103 kt	17 h 17 min	5:21 pm PDT (00:21 UTC)
12,500 ft	230° at 20 kt	+17 kt	1 °C	103 kt	17 h 17 min	5:21 pm PDT (00:21 UTC)
14,500 ft	230° at 22 kt	+20 kt	-3 °C	100 kt	17 h 48 min	5:52 pm PDT (00:52 UTC)
16,500 ft	230° at 24 kt	+22 kt	-7 °C	98 kt	18 h 10 min	6:14 pm PDT (01:14 UTC)
18,000 ft FL180	230° at 25 kt	+24 kt	-10 °C	96 kt	18 h 32 min	6:36 pm PDT (01:36 UTC)
24,000 ft FL240	230° at 31 kt	+29 kt	-22 °C	91 kt	19 h 34 min	7:38 pm PDT (02:38 UTC)
30,000 ft FL300	240° at 38 kt	+37 kt	-32 °C	83 kt	21 h 27 min	9:31 pm PDT (04:31 UTC)
34,000 ft FL340	250° at 45 kt	+47 kt	-38 °C	73 kt	24 h 23 min	12:27 am PDT (07:27 UTC)
39,000 ft FL390	250° at 49 kt	+52 kt	-47 °C	68 kt	26 h 11 min	2:15 am PDT (09:15 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; 92 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 50 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; 59 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; 44 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°
DSM	used from 400 nm out; 51 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 500 nm out; 58 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°
ONL	used from 600 nm out; 56 nm from the line		210/31 20°	230/27 13°	230/18 7°	220/19 -8°	240/26 -20°	250/44 -35°	270/52 -39°	260/57 -47°
BFF	used from 800 nm out; 73 nm from the line		180/28	220/33 15°	210/31 7°	230/32 -9°	220/41 -21°	220/40 -33°	240/47 -36°	250/54 -46°
DEN	used from 950 nm out; 83 nm from the line			240/21 14°	250/44 6°	220/49 -8°	220/49 -21°	230/54 -30°	240/57 -35°	240/49 -45°
RKS	used from 1050 nm out; 86 nm from the line			200/41	220/44 1°	220/35 -11°	220/46 -24°	210/53 -27°	220/62 -35°	230/61 -44°
SLC	used from 1200 nm out; 69 nm from the line		200/5	230/8 2°	220/20 -2°	210/40 -12°	190/53 -25°	210/62 -30°	220/69 -34°	220/64 -43°
ELY	used from 1350 nm out; 52 nm from the line			200/39 3°	210/27 -2°	210/45 -15°	220/56 -24°	210/60 -28°	210/63 -34°	220/61 -43°
BIH	used from 1550 nm out; 74 nm from the line		L/V	240/7 1°	190/13 -3°	200/26 -16°	210/43 -26°	220/54 -28°	220/51 -35°	220/47 -43°
FAT	used from 1650 nm out; 73 nm from the line	130/16	160/20 5°	190/28 -1°	210/25 -5°	220/27 -15°	230/21 -26°	220/42 -29°	220/44 -35°	220/44 -44°
SAC	used from 1700 nm out; 58 nm from the line	110/6	L/V 4°	010/11 -2°	350/11 -7°	340/24 -16°	360/44 -23°	330/24 -30°	270/21 -35°	230/23 -43°
SFO	used from 1750 nm out; 37 nm from the line	120/13	090/14 5°	040/14 -1°	350/17 -5°	360/42 -14°	360/64 -23°	350/38 -32°	300/19 -37°	250/18 -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	Elevation
YIP Detroit, MI	departure	no report just now	715 ft
JXN Jackson, MI	40 nm out, 2 nm southwest of the line, tower	no report just now	1,000 ft
DBQ Dubuque, IA	320 nm out, 4 nm north of the line, tower	no report just now	1,076 ft
ALO Waterloo, IA	390 nm out, 16 nm north of the line, tower	no report just now	873 ft
SUX Sioux City, IA	570 nm out, 17 nm north of the line, tower	no report just now	1,098 ft
OKS Oshkosh, NE	840 nm out, 9 nm south of the line	no report just now	3,394 ft
CYS Cheyenne, WY	950 nm out, 6 nm southwest of the line, tower	no report just now	6,159 ft
VEL Vernal, UT	1170 nm out, 2 nm southwest of the line	no report just now	5,274 ft
PVU Provo, UT	1270 nm out, 12 nm northwest of the line, tower	no report just now	4,496 ft
ELY Ely, NV	1430 nm out, 4 nm east of the line	no report just now	6,259 ft
MOD Modesto, CA	1730 nm out, 2 nm south of the line, tower	no report just now	99 ft
SJC San Jose, CA	destination	no report just now	62 ft

The highest airport on this list sits at 6,259 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SJC when you get there the forecast at the estimated arrival, 4:52 pm PDT (23:52 UTC)

SJC has no terminal forecast; use the nearest airport that does.

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 18 nm from the route, 1680 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 2 nm from the route, at the destination end · drones kept away from a public gathering · until 12 October · ZOA

Daylight

Sunset at YIP 6:57 pm EDT (22:57 UTC), at SJC 6:33 pm PDT (01:33 UTC) (civil twilight ends 6:59 pm PDT (01:59 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, Mineta San Jose International.