The U.S. aircraft register, updated daily
Plan a flight · Sun 8:46 pm CDT (01:46 UTC)

San Antonio International to Salt Lake City International SAT → SLC

944 nautical miles (1,087 statute miles) northwest on a straight line, true course 319°, about 315° magnetic at the departure end (variation 4E). At 120 knots that is 7 h 03 min at the quickest height in today's winds (4,500 ft, a 14-knot tailwind), arriving about 2:49 am MDT (08:49 UTC), after sunset at the destination. Right now SAT is VFR, wind from the south-southeast (150°) at 11 knots; SLC is VFR, wind from the east-northeast (070°) 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: 2,017 flights in the DOT's last twelve reported months, the route's page.

The return flight

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 1W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 9:55 pm CDT (02:55 UTC). Over the route from 497 to 775 nm out.
    as issued
    WSUS33 KKCI 120055
    MKCW WST 120055
    CONVECTIVE SIGMET 1W
    VALID UNTIL 0255Z
    CO NM WY AZ UT
    FROM 40NNW CHE-40WNW TBE-60WNW CME-40N SJN-40ESE MTU-40NNW CHE
    AREA SEV TS MOV FROM 23040KT. TOPS TO FL340.
    WIND GUSTS TO 60KT POSS.
  • AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 437 to 527 nm out.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 507 nm of the route.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 527 to 686 nm out.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 378 nm of the route.
  • 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 606 to 825 nm out.
  • AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the last 179 nm of the route.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 179 nm of the route.
  • 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 last 139 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

Not fetched just now.

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 9 forecast points nearest it (SAT, ABI, LBB, TCC, ABQ, ALS, FMN, GJT, SLC). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft180° at 19 kt−14 kt19 °C134 kt7 h 03 min2:49 am MDT (08:49 UTC)
6,500 ft190° at 20 kt−13 kt18 °C133 kt7 h 06 min2:52 am MDT (08:52 UTC)
8,500 ft200° at 26 kt−10 kt13 °C130 kt7 h 16 min3:02 am MDT (09:02 UTC)
10,500 ft210° at 29 kt−7 kt8 °C127 kt7 h 26 min3:12 am MDT (09:12 UTC)
12,500 ft220° at 30 kt−5 kt4 °C125 kt7 h 33 min3:19 am MDT (09:19 UTC)
14,500 ft220° at 33 kt−4 kt0 °C124 kt7 h 37 min3:23 am MDT (09:23 UTC)
16,500 ft220° at 35 kt−4 kt-4 °C124 kt7 h 37 min3:23 am MDT (09:23 UTC)
18,000 ft FL180220° at 36 kt−3 kt-7 °C123 kt7 h 40 min3:26 am MDT (09:26 UTC)
24,000 ft FL240220° at 42 kt0-19 °C120 kt7 h 52 min3:38 am MDT (09:38 UTC)
30,000 ft FL300230° at 54 kt+8 kt-28 °C112 kt8 h 26 min4:12 am MDT (10:12 UTC)
34,000 ft FL340240° at 53 kt+17 kt-37 °C103 kt9 h 10 min4:56 am MDT (10:56 UTC)
39,000 ft FL390250° at 50 kt+19 kt-48 °C101 kt9 h 21 min5:07 am MDT (11:07 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
SATused from 0 nm out; 25 nm from the line130/22140/24 18°170/19 13°190/13 7°240/15 -4°220/14 -13°270/11 -28°280/10 -40°310/18 -51°
ABIused from 99 nm out; 81 nm from the line180/26 17°220/18 12°230/25 8°230/28 -5°240/29 -14°250/35 -28°270/37 -39°280/37 -51°
LBBused from 199 nm out; 84 nm from the line180/26 20°210/21 13°230/21 7°250/25 -5°250/34 -16°250/52 -28°260/47 -38°260/49 -50°
TCCused from 348 nm out; 63 nm from the line200/26200/28 14°220/25 7°230/28 -7°240/41 -19°240/62 -28°250/61 -37°250/49 -49°
ABQused from 497 nm out; 78 nm from the line200/28 13°210/28 5°210/44 -7°230/46 -20°230/80 -28°240/74 -35°240/58 -47°
ALSused from 547 nm out; 57 nm from the line210/32 5°230/48 -8°230/49 -20°230/78 -30°240/74 -36°240/61 -47°
FMNused from 646 nm out; 63 nm from the line220/25 13°220/28 4°210/51 -9°220/59 -21°230/78 -30°230/77 -36°230/66 -46°
GJTused from 696 nm out; 52 nm from the line210/40 11°210/46 3°210/61 -10°210/68 -22°220/57 -29°230/59 -36°240/66 -46°
SLCused from 845 nm out; 75 nm from the line280/8210/39 5°210/52 -1°200/50 -11°200/56 -23°220/61 -28°230/73 -37°230/73 -45°

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

AirportWhereConditionsWindVisibilityCeilingElevationReported
SAT San Antonio, TX departure VFR Sky: a few clouds at 20,000 feet from the south-southeast (150°) at 11 knots 10+ mi none 809 ft 7:51 pm CDT (00:51 UTC)
ERV Kerrville, TX 40 nm out, 7 nm southwest of the line VFR from the southeast (140°) at 4 knots 10+ mi none 1,616 ft 01:35 UTC
SJT San Angelo, TX 149 nm out, 7 nm west of the line, tower VFR from the south (170°) at 9 knots 10+ mi none 1,918 ft 00:51 UTC
LUV Lamesa, TX 258 nm out, 6 nm west of the line VFR from the south-southeast (160°) at 16 knots 10+ mi none 2,998 ft 01:35 UTC
BFE Brownfield, TX 288 nm out, 3 nm north of the line no report just now 3,264 ft
PRZ Portales, NM 378 nm out, 4 nm south of the line no report just now 4,077 ft
LVS Las Vegas, NM 497 nm out, 2 nm west of the line reported, no category from the south-southeast (150°) at 17 knots, gusting to 25 10+ mi none 6,877 ft 00:53 UTC
PSO Pagosa Springs, CO 636 nm out, 4 nm east of the line VFR Sky: a few clouds at 6,500 feet, a few clouds at 9,000 feet, scattered clouds at 11,000 feet from the east-northeast (060°) at 4 knots 10+ mi none 7,663 ft 01:35 UTC
TEX Telluride, CO 686 nm out, 5 nm north of the line VFR Sky: scattered clouds at 5,500 feet, scattered clouds at 7,000 feet, scattered clouds at 8,500 feet from the south (190°) at 20 knots, gusting to 36 10+ mi none 9,069 ft 01:35 UTC
CNY Moab, UT 785 nm out, 22 nm southwest of the line VFR from the south-southwest (210°) at 21 knots, gusting to 29 10+ mi none 4,579 ft 00:53 UTC
PVU Provo, UT 915 nm out, 18 nm southwest of the line, tower marginal VFR Sky: a few clouds at 1,800 feet, overcast at 3,000 feet Weather: rain from the northwest (310°) at 6 knots 8 mi 3,000 ft 4,496 ft 01:34 UTC
SLC Salt Lake City, UT destination VFR Sky: a few clouds at 800 feet, scattered clouds at 1,700 feet, overcast at 5,000 feet Weather: rain, mist from the east-northeast (070°) at 3 knots 6 mi 5,000 ft 4,230 ft 7:11 pm MDT (01:11 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 SLC when you get there the forecast at the estimated arrival, 2:49 am MDT (08:49 UTC)

Wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet VFR

30% chance between Mon 2:00 am MDT (08:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 4,000 feet VFR

The whole forecast for SLC
  • From Sun 7:00 pm MDT (01:00 UTC): wind from the northwest at 10 knots, visibility 6 miles, light rain, mist, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
  • At times between Sun 7:00 pm MDT (01:00 UTC) and 9:00 pm MDT (03:00 UTC): visibility 4 miles, rain, a broken layer at 2,000 feet
  • From Sun 10:00 pm MDT (04:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, light rain, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
  • From Mon 2:00 am MDT (08:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, scattered clouds at 4,000 feet, a broken layer at 8,000 feet
  • 30% chance between Mon 2:00 am MDT (08:00 UTC) and 6:00 am MDT (12:00 UTC): wind variable at 10 knots, gusting to 25, light rain showers, a broken layer at 4,000 feet
  • From Mon 6:00 am MDT (12:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
  • From Mon 3:00 pm MDT (21:00 UTC): wind from the northwest at 11 knots, visibility more than 6 miles, light rain showers, scattered clouds at 2,000 feet, a broken layer at 5,000 feet
The forecast for SAT, the departure
  • From Sun 7:00 pm CDT (00:00 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

  • 6/4240 SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local 2 nm from the route, 139 nm along the route · security · until 1 November · ZFW

Daylight

Sunset at SAT 7:06 pm CDT (00:06 UTC), at SLC 6:52 pm MDT (00:52 UTC) (civil twilight ends 7:19 pm MDT (01:19 UTC)). At 120 knots the arrival at SLC is before sunrise there (7:35 am MDT (13:35 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 southern Plains
Radar now, the southern Plains · loop National Weather Service
Radar now, the southern Rockies
Radar now, the southern Rockies · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
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: San Antonio International, Salt Lake City International.