Grand Junction Regional to San Antonio International GJT → SAT
761 nautical miles (875 statute miles) southeast on a straight line, true course 136°, about 127° magnetic at the departure end (variation 9E). At 120 knots that is 5 h 46 min at the quickest height in today's winds (39,000 ft, a 12-knot tailwind), arriving about 3:48 pm CDT (20:48 UTC). Right now GJT is VFR, wind from the east-southeast (110°) at 12 knots; SAT is marginal VFR, wind from the east-southeast (110°) at 4 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 ZULU 2C: moderate icing up to 23,000 ft. Over the first 0 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the first 286 nm of the route.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Near the route, at the departure end.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 128 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 GJT.
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 14:00–21:00 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 6 forecast points nearest it (GJT, ALS, TCC, LBB, ABI, SAT). 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 | 220° at 17 kt | +4 kt | 20 °C | 116 kt | 6 h 34 min | 4:36 pm CDT (21:36 UTC) |
| 7,500 ft | 210° at 20 kt | +6 kt | 15 °C | 114 kt | 6 h 41 min | 4:43 pm CDT (21:43 UTC) |
| 9,500 ft | 210° at 22 kt | +5 kt | 12 °C | 115 kt | 6 h 37 min | 4:39 pm CDT (21:39 UTC) |
| 11,500 ft | 220° at 26 kt | +6 kt | 7 °C | 114 kt | 6 h 41 min | 4:43 pm CDT (21:43 UTC) |
| 13,500 ft | 220° at 29 kt | +4 kt | 2 °C | 116 kt | 6 h 34 min | 4:36 pm CDT (21:36 UTC) |
| 15,500 ft | 230° at 34 kt | +2 kt | -2 °C | 118 kt | 6 h 27 min | 4:29 pm CDT (21:29 UTC) |
| 17,500 ft | 230° at 38 kt | 0 | -6 °C | 120 kt | 6 h 20 min | 4:22 pm CDT (21:22 UTC) |
| 18,000 ft FL180 | 230° at 40 kt | −1 kt | -7 °C | 121 kt | 6 h 17 min | 4:19 pm CDT (21:19 UTC) |
| 24,000 ft FL240 | 230° at 49 kt | 0 | -18 °C | 120 kt | 6 h 20 min | 4:22 pm CDT (21:22 UTC) |
| 30,000 ft FL300 | 230° at 58 kt | −2 kt | -28 °C | 122 kt | 6 h 14 min | 4:16 pm CDT (21:16 UTC) |
| 34,000 ft FL340 | 240° at 55 kt | −9 kt | -37 °C | 129 kt | 5 h 54 min | 3:56 pm CDT (20:56 UTC) |
| 39,000 ft FL390 | 240° at 50 kt | −12 kt | -49 °C | 132 kt | 5 h 46 min | 3:48 pm CDT (20:48 UTC) |
Based on data from the 12th at 12:00 UTC; valid on the 12th at 18:00 UTC for use 14:00 to 21:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| GJT | used from 0 nm out; 25 nm from the line | 190/30 6° | 200/35 0° | 220/50 -13° | 220/69 -22° | 220/81 -30° | 230/84 -39° | 230/88 -47° | ||
| ALS | used from 99 nm out; 43 nm from the line | 230/34 2° | 230/57 -9° | 230/72 -19° | 230/82 -27° | 230/91 -36° | 240/89 -48° | |||
| TCC | used from 247 nm out; 64 nm from the line | 230/14 | 240/29 12° | 220/39 6° | 230/48 -6° | 230/52 -19° | 230/77 -27° | 240/77 -37° | 250/71 -49° | |
| LBB | used from 395 nm out; 46 nm from the line | 240/21 20° | 230/20 15° | 210/19 8° | 230/39 -6° | 230/48 -16° | 240/57 -27° | 250/51 -37° | 240/45 -50° | |
| ABI | used from 543 nm out; 61 nm from the line | 210/22 19° | 210/14 15° | 210/19 8° | 240/17 -4° | 240/31 -15° | 240/35 -27° | 260/30 -37° | 260/18 -51° | |
| SAT | used from 642 nm out; 94 nm from the line | 160/12 | 180/23 18° | 190/21 14° | 200/12 10° | 240/19 -5° | 220/19 -14° | 210/8 -29° | 090/9 -39° | 050/21 -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 |
|---|---|---|---|---|---|---|---|
| GJT Grand Junction, CO | departure | VFR Sky: overcast at 8,500 feet Weather: light rain | from the east-southeast (110°) at 12 knots | 10+ mi | 8,500 ft | 4,861 ft | 8:53 am MDT (14:53 UTC) |
| AJZ Delta, CO | 30 nm out, 2 nm northeast of the line | reported, no category | from the north (010°) at 4 knots | 7,500 ft | 5,193 ft | 14:55 UTC | |
| RCV Del Norte, CO | 128 nm out, 17 nm northeast of the line | VFR | from the southwest (220°) at 11 knots, gusting to 16 | 10+ mi | none | 7,955 ft | 14:35 UTC |
| AXX Angel Fire, NM | 227 nm out, 5 nm north of the line | VFR | from the southwest (230°) at 9 knots | 10+ mi | none | 8,379 ft | 14:55 UTC |
| LVS Las Vegas, NM | 267 nm out, 23 nm southwest of the line | reported, no category | from the south-southeast (160°) at 15 knots | 10+ mi | none | 6,877 ft | 14:53 UTC |
| TCC Tucumcari, NM | 336 nm out, 15 nm northeast of the line | VFR | from the southwest (220°) at 14 knots | 10+ mi | none | 4,064 ft | 14:53 UTC |
| LLN Levelland, TX | 444 nm out, 4 nm south of the line | VFR | from the south (190°) at 6 knots | 10+ mi | none | 3,514 ft | 11:50 UTC |
| LBB Lubbock, TX | 464 nm out, 23 nm northeast of the line, tower | VFR Sky: a few clouds at 12,000 feet | from the south-southwest (200°) at 11 knots | 10+ mi | none | 3,282 ft | 14:53 UTC |
| SNK Snyder, TX | 533 nm out, 19 nm northeast of the line | marginal VFR Sky: overcast at 1,700 feet | from the south (180°) at 10 knots, gusting to 16 | 10+ mi | 1,700 ft | 2,430 ft | 14:55 UTC |
| SJT San Angelo, TX | 612 nm out, 14 nm southwest of the line, tower | marginal VFR Sky: overcast at 1,700 feet | from the south (180°) at 12 knots, gusting to 19 | 10+ mi | 1,700 ft | 1,918 ft | 14:51 UTC |
| ERV Kerrville, TX | 721 nm out, 9 nm southwest of the line | marginal VFR Sky: overcast at 1,000 feet | from the south (170°) at 7 knots | 10+ mi | 1,000 ft | 1,616 ft | 14:55 UTC |
| SAT San Antonio, TX | destination | marginal VFR Sky: a broken layer at 1,300 feet, a broken layer at 2,100 feet, overcast at 2,600 feet | from the east-southeast (110°) at 4 knots | 10+ mi | 1,300 ft | 809 ft | 8:51 am CDT (13:51 UTC) |
The highest airport on this list sits at 8,379 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At SAT when you get there the forecast at the estimated arrival, 3:48 pm CDT (20:48 UTC)
Wind from the south-southeast at 12 knots, visibility more than 6 miles, a broken layer at 3,500 feet VFR
The whole forecast for SAT
- From Mon 10:00 am CDT (15:00 UTC): wind from the east-southeast at 5 knots, visibility more than 6 miles, a broken layer at 1,500 feet
- At times between Mon 10:00 am CDT (15:00 UTC) and 12:00 pm CDT (17:00 UTC): a broken layer at 2,500 feet
- From Mon 12:00 pm CDT (17:00 UTC): wind from the south-southeast at 12 knots, visibility more than 6 miles, a broken layer at 3,500 feet
- From Tue 1:00 am CDT (06:00 UTC): wind from the south-southeast at 9 knots, visibility more than 6 miles, overcast at 1,500 feet
- At times between Tue 4:00 am CDT (09:00 UTC) and 7:00 am CDT (12:00 UTC): a broken layer at 800 feet
The forecast for GJT, the departure
- From Mon 6:00 am MDT (12:00 UTC): wind from the southeast at 17 knots, gusting to 28, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 8,000 feet
- At times between Mon 6:00 am MDT (12:00 UTC) and 10:00 am MDT (16:00 UTC): visibility 4 miles, light rain showers, a broken layer at 5,000 feet
- From Mon 12:00 pm MDT (18:00 UTC): wind from the south-southwest at 18 knots, visibility more than 6 miles, scattered clouds at 5,000 feet, a broken layer at 6,000 feet
- 30% chance between Mon 12:00 pm MDT (18:00 UTC) and 3:00 pm MDT (21:00 UTC): visibility 4 miles, light rain showers, a broken layer at 5,000 feet, a broken layer at 6,000 feet and more above
- From Mon 3:00 pm MDT (21:00 UTC): wind from the southwest at 15 knots, gusting to 25, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 9,000 feet
- 30% chance between Mon 3:00 pm MDT (21:00 UTC) and 8:00 pm MDT (02:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)
- From Mon 8:00 pm MDT (02:00 UTC): wind from the northeast at 10 knots, gusting to 19, visibility more than 6 miles, a few clouds at 6,000 feet, scattered clouds at 10,000 feet
- 30% chance between Mon 8:00 pm MDT (02:00 UTC) and 10:00 pm MDT (04:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)
- From Mon 10:00 pm MDT (04:00 UTC): wind from the northwest at 11 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 6,000 feet, a broken layer at 9,000 feet
- 30% chance between Mon 10:00 pm MDT (04:00 UTC) and 4:00 am MDT (10:00 UTC): visibility 4 miles, light thunderstorms with rain, a broken layer at 6,000 feet (thunderheads)
- From Tue 4:00 am MDT (10:00 UTC): wind from the east-southeast at 10 knots, gusting to 20, visibility more than 6 miles, light rain showers, scattered clouds at 3,000 feet, a broken layer at 4,500 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 8 nm from the route, 612 nm along the route · security · until 1 November · ZFW
Daylight
Sunset at GJT 6:38 pm MDT (00:38 UTC), at SAT 7:05 pm CDT (00:05 UTC) (civil twilight ends 7:29 pm CDT (00:29 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: Grand Junction Regional, San Antonio International.