San Antonio International to Charles M Schulz/Sonoma County SAT → STS
1,321 nautical miles (1,520 statute miles) northwest on a straight line, true course 301°, about 297° magnetic at the departure end (variation 4E). At 120 knots that is 10 h 29 min at the quickest height in today's winds (4,500 ft, a 6-knot tailwind), arriving about 6:41 am PDT (13:41 UTC), after sunset at the destination. Right now SAT is VFR, wind from the southeast (140°) at 12 knots, gusting to 20; STS is VFR, wind from the south-southeast (150°) 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: 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 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 496 to 963 nm out.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 506 to 794 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 725 to 953 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 745 to 844 nm out.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 784 to 983 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 983 to 1162 nm out.
- AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, 1043 nm along the route.
- AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 119 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 SAT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- PC12 at 14,000 ft, 34 nm southwest, 8:03 pm CDT (01:03 UTC): light rime icing, remarks: zab/fdcs. 755 nm along the route, 34 nm southwest of the line.
as filed, and in English
FLG UA /OV FLG210030/TM 0103/FL140/TP PC12/TA UNK/IC LGT RIME/RM ZAB/FDCS
- Report
- a routine report filed through FLG
- Where
- 30 nm southwest (210°) of FLG
- Time
- 01:03 UTC
- Height
- at 14,000 ft
- Aircraft
- PC12
- Temperature
- UNK
- Icing
- light rime
- Remarks
- zab/fdcs
- C172 at 7,200 ft, 42 nm southwest, 8:06 pm CDT (01:06 UTC): overcast from 7,200 ft to 9,000 ft. 765 nm along the route, 42 nm southwest of the line.
as filed, and in English
PRC UA /OV 6NE PRC/TM 0106/FL072/TP C172/SK OVC072-TOP090
- Report
- a routine report filed through PRC
- Where
- 6NE prc
- Time
- 01:06 UTC
- Height
- at 7,200 ft
- Aircraft
- C172
- Sky
- overcast from 7,200 ft, tops 9,000 ft
- B39M at 3,800 ft, 19 nm southwest, 9:30 pm CDT (02:30 UTC): no turbulence, wind 190° at 21 knots, remarks: during the descent runway 26L las. 923 nm along the route, 19 nm southwest of the line.
as filed, and in English
LAS UA /OV 08006/TM 0230/FL038/TP B39M/WV 19021KT/TB NEG/RM DURD RY26L LAS
- Report
- a routine report filed through LAS
- Where
- wind from 080° at 6 knots
- Time
- 02:30 UTC
- Height
- at 3,800 ft
- Aircraft
- B39M
- Wind
- from 190° at 21 knots
- Turbulence
- none
- Remarks
- during the descent runway 26L las
- H25B at 17,000 ft, 46 nm south, 9:44 pm CDT (02:44 UTC): light rime icing, -10 °C, remarks: rndrz arrival. 943 nm along the route, 46 nm south of the line.
as filed, and in English
LAS UA /OV LAS210030/TM 0244/FL170/TP H25B/TA -10/IC LT RIME/RM RNDRZ ARR
- Report
- a routine report filed through LAS
- Where
- 30 nm southwest (210°) of LAS
- Time
- 02:44 UTC
- Height
- at 17,000 ft
- Aircraft
- H25B
- Temperature
- -10
- Icing
- lt rime
- Remarks
- rndrz arrival
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 11 forecast points nearest it (SAT, DRT, INK, ROW, ELP, ABQ, PRC, LAS, BIH, FAT, SAC). 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 | 180° at 15 kt | −6 kt | 15 °C | 126 kt | 10 h 29 min | 6:41 am PDT (13:41 UTC) |
| 6,500 ft | 190° at 15 kt | −4 kt | 12 °C | 124 kt | 10 h 39 min | 6:51 am PDT (13:51 UTC) |
| 8,500 ft | 210° at 16 kt | 0 | 9 °C | 120 kt | 11 h | 7:12 am PDT (14:12 UTC) |
| 10,500 ft | 210° at 18 kt | +1 kt | 5 °C | 119 kt | 11 h 06 min | 7:18 am PDT (14:18 UTC) |
| 12,500 ft | 210° at 20 kt | +2 kt | 1 °C | 118 kt | 11 h 12 min | 7:24 am PDT (14:24 UTC) |
| 14,500 ft | 220° at 24 kt | +5 kt | -3 °C | 115 kt | 11 h 29 min | 7:41 am PDT (14:41 UTC) |
| 16,500 ft | 220° at 28 kt | +7 kt | -7 °C | 113 kt | 11 h 41 min | 7:53 am PDT (14:53 UTC) |
| 18,000 ft FL180 | 220° at 31 kt | +9 kt | -10 °C | 111 kt | 11 h 54 min | 8:06 am PDT (15:06 UTC) |
| 24,000 ft FL240 | 230° at 38 kt | +14 kt | -19 °C | 106 kt | 12 h 28 min | 8:40 am PDT (15:40 UTC) |
| 30,000 ft FL300 | 230° at 49 kt | +22 kt | -28 °C | 98 kt | 13 h 29 min | 9:41 am PDT (16:41 UTC) |
| 34,000 ft FL340 | 240° at 50 kt | +26 kt | -36 °C | 94 kt | 14 h 03 min | 10:15 am PDT (17:15 UTC) |
| 39,000 ft FL390 | 240° at 41 kt | +23 kt | -46 °C | 97 kt | 13 h 37 min | 9:49 am PDT (16:49 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| SAT | used from 0 nm out; 25 nm from the line | 150/26 | 180/18 19° | 180/18 14° | 200/14 9° | 230/16 -6° | 210/9 -13° | 270/8 -29° | 280/6 -39° | 340/19 -51° |
| DRT | used from 99 nm out; 74 nm from the line | 160/31 | 170/28 16° | 200/14 16° | 210/15 9° | 210/15 -4° | 240/12 -12° | 240/18 -28° | 300/11 -38° | 320/18 -50° |
| INK | used from 199 nm out; 56 nm from the line | 190/23 20° | 200/18 15° | 230/18 8° | 240/23 -4° | 240/37 -14° | 240/46 -27° | 250/42 -38° | 260/36 -50° | |
| ROW | used from 348 nm out; 48 nm from the line | 190/33 | 210/27 14° | 220/28 6° | 230/36 -6° | 230/56 -15° | 230/63 -27° | 250/59 -37° | 260/57 -49° | |
| ELP | used from 447 nm out; 89 nm from the line | 290/17 | 210/11 13° | 200/18 5° | 220/46 -6° | 230/64 -14° | 230/63 -27° | 240/55 -37° | 240/44 -48° | |
| ABQ | used from 496 nm out; 94 nm from the line | 220/27 11° | 210/35 5° | 220/46 -9° | 230/62 -20° | 240/78 -25° | 240/80 -35° | 240/56 -47° | ||
| PRC | used from 645 nm out; 111 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 844 nm out; 61 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° | |
| BIH | used from 993 nm out; 81 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 1142 nm out; 57 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 1191 nm out; 49 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° |
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 |
|---|---|---|---|---|---|---|---|
| SAT San Antonio, TX | departure | VFR Sky: a few clouds at 20,000 feet | from the southeast (140°) at 12 knots, gusting to 20 | 10+ mi | none | 809 ft | 9:51 pm CDT (02:51 UTC) |
| SOA Sonora, TX | 129 nm out, 2 nm southwest of the line | VFR | calm | 10+ mi | none | 2,139 ft | 02:55 UTC |
| OZA Ozona, TX | 159 nm out, 8 nm southwest of the line | VFR | from the south (170°) at 11 knots | 10+ mi | none | 2,376 ft | 02:55 UTC |
| INK Wink, TX | 278 nm out, 3 nm southwest of the line | reported, no category | from the south-southeast (150°) at 22 knots, gusting to 30 | none | 2,821 ft | 02:53 UTC | |
| ALM Alamogordo, NM | 437 nm out, 11 nm south of the line | VFR Sky: a few clouds at 4,800 feet, scattered clouds at 7,500 feet, a broken layer at 9,000 feet | from the northeast (050°) at 8 knots, gusting to 15 | 10+ mi | 9,000 ft | 4,199 ft | 02:55 UTC |
| SJN St Johns, AZ | 626 nm out, 8 nm north of the line | VFR | from the south-southwest (200°) at 12 knots, gusting to 25 | 10+ mi | none | 5,736 ft | 02:54 UTC |
| FLG Flagstaff, AZ | 745 nm out, 7 nm southwest of the line, tower | marginal VFR Sky: scattered clouds at 800 feet, a broken layer at 1,200 feet, overcast at 2,100 feet Weather: light rain, mist | from the south-southwest (210°) at 18 knots, gusting to 29 | 5 mi | 1,200 ft | 7,014 ft | 02:57 UTC |
| LAS Las Vegas, NV | 923 nm out, 19 nm southwest of the line, tower | VFR Sky: a few clouds at 3,500 feet, scattered clouds at 8,000 feet, a broken layer at 12,000 feet, a broken layer at 15,000 feet | from the south (190°) at 10 knots | 10+ mi | 12,000 ft | 2,183 ft | 02:56 UTC |
| VGT Las Vegas, NV | 933 nm out, 12 nm south of the line, tower | VFR Sky: a few clouds at 12,000 feet | from the east (100°) at 7 knots | 10+ mi | none | 2,205 ft | 02:53 UTC |
| BIH Bishop, CA | 1102 nm out, 3 nm east of the line | VFR | from the southwest (230°) at 8 knots | 10+ mi | none | 4,124 ft | 02:56 UTC |
| APC Napa, CA | 1291 nm out, 10 nm south of the line, tower | VFR | from the south (180°) at 9 knots | 10+ mi | none | 35 ft | 02:54 UTC |
| STS Santa Rosa, CA | destination | VFR | from the south-southeast (150°) at 3 knots | 10+ mi | none | 128 ft | 7:53 pm PDT (02:53 UTC) |
The highest airport on this list sits at 7,014 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At STS when you get there the forecast at the estimated arrival, 6:41 am PDT (13:41 UTC)
Wind from the west-northwest at 2 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for STS
- From Sun 5:00 pm PDT (00:00 UTC): wind from the south-southeast at 6 knots, visibility more than 6 miles, clear skies
- From Mon 12:00 am PDT (07:00 UTC): wind from the west-northwest at 2 knots, visibility more than 6 miles, clear skies
- From Mon 1:00 pm PDT (20:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies
The forecast for SAT, the departure
- From Sun 10:00 pm CDT (03:00 UTC): wind from the south-southeast at 15 knots, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 25,000 feet
- From Mon 12:00 am CDT (05:00 UTC): wind from the southeast at 9 knots, visibility more than 6 miles, scattered clouds at 1,200 feet
- From Mon 6:00 am CDT (11:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a broken layer at 1,200 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southeast at 8 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Mon 2:00 pm CDT (19:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a broken layer at 5,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8722 ALAMOGORDO, NM, Tuesday, October 13, 2026 Local on the route, 427 nm along the route · security · starts tomorrow · ZAB
- 6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local on the route, 913 nm along the route · a VIP movement · starts tomorrow · ZLA
- 6/8808 Las Vegas, NV, Tuesday, October 13, 2026 Local 16 nm from the route, 923 nm along the route · security · starts tomorrow · ZLA
- 6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC on the route, 1162 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
- 6/6740 SACRAMENTO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 17 nm from the route, 1251 nm along the route · air shows/sports · ended 11 October · ZOA
Daylight
Sunset at SAT 7:06 pm CDT (00:06 UTC), at STS 6:37 pm PDT (01:37 UTC) (civil twilight ends 7:04 pm PDT (02:04 UTC)). At 120 knots the arrival at STS is before sunrise there (7:17 am PDT (14:17 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
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: San Antonio International, Charles M Schulz/Sonoma County.