Plan a flight · Mon 12:43 am PDT (07:43 UTC)

Mineta San Jose International to St. Louis Downtown Airport SJC → CPS

1,498 nautical miles (1,724 statute miles) east on a straight line, true course 077°, about 064° magnetic at the departure end (variation 13E). At 120 knots that is 8 h 58 min at the quickest height in today's winds (34,000 ft, a 47-knot tailwind), arriving about 11:41 am CDT (16:41 UTC). Right now SJC is VFR, wind from the south-southeast (150°) at 4 knots; CPS is VFR, wind from the south (170°) at 3 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: 2 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 W16W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the southwest at 20 knots, until 1:55 am PDT (08:55 UTC). Over the route from 220 to 260 nm out.
as issued
```
WSUS33 KKCI 120655
MKCW WST 120655
CONVECTIVE SIGMET 16W
VALID UNTIL 0855Z
UT NV
FROM 50NW BVL-20NE BVL-40SE OAL-20N OAL-50NW BVL
AREA TS MOV FROM 24020KT. TOPS TO FL270.
```
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft, from 11:00 pm PDT (06:00 UTC). Over the first 60 nm of the route.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist), from 11:00 pm PDT (06:00 UTC). Over the route from 230 to 639 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft, from 11:00 pm PDT (06:00 UTC). Over the route from 280 to 899 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft, from 11:00 pm PDT (06:00 UTC). Over the route from 290 to 589 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft, from 11:00 pm PDT (06:00 UTC). Over the route from 479 to 899 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), from 11:00 pm PDT (06:00 UTC). Over the route from 639 to 809 nm out.
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), from 11:00 pm PDT (06:00 UTC). Over the route from 909 to 1378 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 SJC.

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

PC12 at 17,000 ft, 2 nm southeast, 9:52 pm PDT (04:52 UTC): moderate turbulence, moderate rime icing, -15 °C, remarks: entered by zoa fdcs. 200 nm along the route, 2 nm southeast 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
A321 at 31,000 ft, 10 nm south, 11:41 pm PDT (06:41 UTC): moderate turbulence, remarks: mtw +/-15KT zdvwc. 819 nm along the route, 10 nm south 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
A321 at 31,000 ft, 8 nm southwest, 11:15 pm PDT (06:15 UTC): light to moderate chop turbulence, remarks: mountain wave zlc. 539 nm along the route, 8 nm southwest of the line.
as filed, and in English
```
CNY UA /OV HVE340015/TM 0615/FL310/TP A321/TB OCNL LGT-MOD CHOP /RM MTN WAVE /ZLC
```
Report
a routine report filed through CNY
Where
15 nm north (340°) of HVE
Time
06:15 UTC
Height
at 31,000 ft
Aircraft
A321
Turbulence
occasional light to moderate chop
Remarks
mountain wave zlc
PC12 at 12,000 ft, 4 nm north, 12:08 am PDT (07:08 UTC): light turbulence, no icing, 4 °C, remarks: instrument conditions ZDVWC-11. 609 nm along the route, 4 nm north of the line.
as filed, and in English
```
GJT UA /OV JNC237019/TM 0708/FL120/TP PC12/TA 04/TB OCNL LGT/IC NEG/RM IMC. ZDVWC-11
```
Report
a routine report filed through GJT
Where
19 nm southwest (237°) of JNC
Time
07:08 UTC
Height
at 12,000 ft
Aircraft
PC12
Temperature
4 °C
Turbulence
occasional light
Icing
none
Remarks
instrument conditions ZDVWC-11
E170 at 4,800 ft, 11 nm north, 11:31 pm PDT (06:31 UTC): no turbulence, no icing, clear from 4,800 ft to 60,000 ft, remarks: during the descent rnav Y 11 lgjt zdvwc. 639 nm along the route, 11 nm north of the line.
as filed, and in English
```
GJT UA /OV GJT/TM 0631/FL048/TP E170/SK SKC/TB NEG/IC NEG/RM DURD RNAV Y 11 LGJT. ZDVWC
```
Report
a routine report filed through GJT
Where
over GJT
Time
06:31 UTC
Height
at 4,800 ft
Aircraft
E170
Sky
clear
Turbulence
none
Icing
none
Remarks
during the descent rnav Y 11 lgjt zdvwc
PC12 at 26,000 ft, 46 nm south, 11:27 pm PDT (06:27 UTC): light chop turbulence, remarks: ZDVWC-12. 749 nm along the route, 46 nm south 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
B738 at 23,000 ft, 13 nm north, 11:23 pm PDT (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. 769 nm along the route, 13 nm north 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
CRJ2 at 22,000 ft, 5 nm northwest, 11:35 pm PDT (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. 779 nm along the route, 5 nm northwest 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
A20N at 25,000 ft, 35 nm north, 11:19 pm PDT (06:19 UTC): light chop turbulence up to 26,000 ft, remarks: during the climb ZDVWC-06. 779 nm along the route, 35 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN250045/TM 0619/FL250/TP A20N/TB OCNL LGT CHOP BLO 260/RM DURC. ZDVWC-06
```
Report
a routine report filed through DEN
Where
45 nm west (250°) of DEN
Time
06:19 UTC
Height
at 25,000 ft
Aircraft
A20N
Turbulence
occasional light chop below 26,000 ft
Remarks
during the climb ZDVWC-06
E170 at 22,500 ft, 3 nm north, 10:06 pm PDT (05:06 UTC): light to moderate turbulence up to 23,000 ft, remarks: during the descent tbarr star ZDVWC-13. 779 nm along the route, 3 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
A320 at 31,000 ft, 49 nm south, 11:58 pm PDT (06:58 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. 789 nm along the route, 49 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
B737 descending, 43 nm north, 12:10 am PDT (07:10 UTC): remarks: smooth. 819 nm along the route, 43 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0710/FLDURD/TP B737/RM SMOOTH
```
Report
a routine report filed through DEN
Where
over DEN
Time
07:10 UTC
Height
during the descent
Aircraft
B737
Remarks
smooth
A21N at 33,000 ft, 10 nm south, 11:59 pm PDT (06:59 UTC): light chop turbulence, remarks: mtw a 10-knot loss of airspeed 100FT zdvwc. 819 nm along the route, 10 nm south 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
B738 descending, 43 nm north, 11:15 pm PDT (06:15 UTC): light chop turbulence. 819 nm along the route, 43 nm north of the line.
as filed, and in English
```
DEN UA /OV DEN/TM 0615/FLDURD/TP B738/TB LGT CHOP
```
Report
a routine report filed through DEN
Where
over DEN
Time
06:15 UTC
Height
during the descent
Aircraft
B738
Turbulence
light chop

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 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 13 forecast points nearest it (SFO, FAT, BIH, ELY, BCE, GJT, DEN, PUB, GLD, SLN, MKC, COU, STL). 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	230° at 26 kt	−19 kt		139 kt	10 h 47 min	1:30 pm CDT (18:30 UTC)
7,500 ft	220° at 26 kt	−19 kt	10 °C	139 kt	10 h 47 min	1:30 pm CDT (18:30 UTC)
9,500 ft	230° at 24 kt	−18 kt	8 °C	138 kt	10 h 51 min	1:34 pm CDT (18:34 UTC)
11,500 ft	230° at 23 kt	−18 kt	3 °C	138 kt	10 h 51 min	1:34 pm CDT (18:34 UTC)
13,500 ft	230° at 25 kt	−20 kt	-1 °C	140 kt	10 h 42 min	1:25 pm CDT (18:25 UTC)
15,500 ft	230° at 27 kt	−21 kt	-5 °C	141 kt	10 h 37 min	1:20 pm CDT (18:20 UTC)
17,500 ft	230° at 29 kt	−23 kt	-9 °C	143 kt	10 h 29 min	1:12 pm CDT (18:12 UTC)
18,000 ft FL180	230° at 29 kt	−23 kt	-10 °C	143 kt	10 h 29 min	1:12 pm CDT (18:12 UTC)
24,000 ft FL240	230° at 39 kt	−31 kt	-21 °C	151 kt	9 h 55 min	12:38 pm CDT (17:38 UTC)
30,000 ft FL300	230° at 50 kt	−43 kt	-30 °C	163 kt	9 h 11 min	11:54 am CDT (16:54 UTC)
34,000 ft FL340	240° at 52 kt	−47 kt	-36 °C	167 kt	8 h 58 min	11:41 am CDT (16:41 UTC)
39,000 ft FL390	240° at 49 kt	−46 kt	-46 °C	166 kt	9 h 01 min	11:44 am CDT (16:44 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
SFO	used from 0 nm out; 47 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°
FAT	used from 50 nm out; 60 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°
BIH	used from 100 nm out; 54 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°
ELY	used from 250 nm out; 92 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°
BCE	used from 400 nm out; 69 nm from the line				220/27 -1°	210/40 -13°	220/54 -21°	220/64 -30°	220/64 -34°	220/52 -44°
GJT	used from 549 nm out; 67 nm from the line			210/43 7°	230/45 1°	220/49 -12°	220/62 -22°	220/59 -28°	230/60 -33°	220/55 -45°
DEN	used from 749 nm out; 65 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°
PUB	used from 849 nm out; 69 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°
GLD	used from 899 nm out; 37 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°
SLN	used from 1049 nm out; 75 nm from the line	210/53	230/41 20°	240/26 14°	230/16 8°	240/25 -7°	240/35 -19°	250/61 -30°	260/65 -38°	260/56 -49°
MKC	used from 1199 nm out; 66 nm from the line	220/44	250/28 18°	250/18 13°	240/12 6°	280/24 -6°	240/34 -18°	260/47 -30°	260/51 -40°	270/58 -50°
COU	used from 1348 nm out; 27 nm from the line	230/31	230/30 15°	260/16 11°	270/14 6°	260/24 -6°	270/27 -18°	270/37 -32°	280/49 -41°	290/56 -51°
STL	used from 1448 nm out; 17 nm from the line	250/24	250/24 16°	260/23 9°	270/16 6°	260/25 -6°	270/29 -19°	290/34 -33°	290/48 -41°	290/54 -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	Wind	Visibility	Ceiling	Elevation	Reported
SJC San Jose, CA	departure	VFR Sky: a few clouds at 3,000 feet, a few clouds at 8,000 feet	from the south-southeast (150°) at 4 knots	10+ mi	none	62 ft	11:53 pm PDT (06:53 UTC)
MOD Modesto, CA	50 nm out, 6 nm northwest of the line, tower	VFR	from the north-northwest (340°) at 5 knots	10+ mi	none	99 ft	06:53 UTC
TPH Tonopah, NV	230 nm out, 5 nm southeast of the line	VFR Sky: overcast at 3,700 feet	from the north-northwest (340°) at 10 knots	10+ mi	3,700 ft	5,430 ft	06:56 UTC
MLF Milford, UT	429 nm out, 10 nm south of the line	VFR Sky: a broken layer at 10,000 feet	from the south-southwest (200°) at 15 knots	10+ mi	10,000 ft	5,042 ft	06:52 UTC
RIF Richfield, UT	469 nm out, 4 nm northeast of the line	VFR	from the southeast (140°) at 2 knots	10+ mi	none	5,318 ft	07:34 UTC
GJT Grand Junction, CO	639 nm out, 11 nm north of the line, tower	VFR Sky: a few clouds at 6,000 feet, overcast at 9,000 feet	from the east-southeast (120°) at 15 knots	10+ mi	9,000 ft	4,861 ft	06:53 UTC
COS Colorado Springs, CO	819 nm out, 18 nm south 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
OEL Oakley, KS	999 nm out, 2 nm south of the line	VFR	from the south-southwest (210°) at 14 knots	10+ mi	none	3,045 ft	07:35 UTC
MHK Manhattan, KS	1189 nm out, 7 nm northeast of the line, tower	VFR	from the south-southwest (210°) at 15 knots, gusting to 23	10+ mi	none	1,066 ft	06:52 UTC
FOE Topeka, KS	1239 nm out, 2 nm south of the line, tower	VFR	from the south (190°) at 10 knots, gusting to 18	10+ mi	none	1,077 ft	06:53 UTC
COU Columbia, MO	1398 nm out, 4 nm northeast of the line, tower	VFR	from the south (190°) at 6 knots	10+ mi	none	889 ft	06:54 UTC
CPS Cahokia/St Louis, IL	destination	VFR	from the south (170°) at 3 knots	10+ mi	none	412 ft	1:53 am CDT (06:53 UTC)

The highest airport on this list sits at 6,187 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At CPS when you get there the forecast at the estimated arrival, 11:41 am CDT (16:41 UTC)

Wind from the southwest at 10 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for CPS

From Mon 1:00 am CDT (06:00 UTC): wind from the south at 5 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 10 knots, visibility more than 6 miles, clear skies

The forecast for SJC, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind from the southeast at 4 knots, visibility more than 6 miles, clear skies
From Mon 1:00 pm PDT (20:00 UTC): wind from the northwest at 8 knots, visibility more than 6 miles, clear skies

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 3 nm from the route, 120 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 6 nm from the route, 789 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 23 nm from the route, 1398 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC

Daylight

Sunset at SJC 6:33 pm PDT (01:33 UTC), at CPS 6:27 pm CDT (23:27 UTC) (civil twilight ends 6:53 pm CDT (23:53 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 Southwest · loop National Weather Service

Radar now, the southern 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: Mineta San Jose International, St. Louis Downtown Airport.