San Francisco International to Huntsville Intl-Carl T Jones Field SFO → HSV
1,725 nautical miles (1,985 statute miles) east on a straight line, true course 085°, about 071° magnetic at the departure end (variation 14E). At 120 knots that is 10 h 35 min at the quickest height in today's winds (34,000 ft, a 43-knot tailwind), arriving about 6:41 am CDT (11:41 UTC), after sunset at the destination. 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 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 130 to 319 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 289 to 578 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 289 to 788 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 299 to 748 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 339 to 878 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 459 to 509 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 539 to 718 nm out.
- AIRMET TANGO 3W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 588 to 618 nm out.
- AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the last 50 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 SFO.
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 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 17 forecast points nearest it (SFO, SAC, FAT, BIH, ELY, BCE, FMN, ALS, PUB, GCK, GAG, ICT, TUL, FSM, LIT, MEM, HSV). 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 14 kt | −7 kt | 20 °C | 127 kt | 13 h 35 min | 9:41 am CDT (14:41 UTC) |
| 7,500 ft | 230° at 17 kt | −12 kt | 13 °C | 132 kt | 13 h 04 min | 9:10 am CDT (14:10 UTC) |
| 9,500 ft | 240° at 18 kt | −15 kt | 9 °C | 135 kt | 12 h 47 min | 8:53 am CDT (13:53 UTC) |
| 11,500 ft | 230° at 23 kt | −18 kt | 4 °C | 138 kt | 12 h 30 min | 8:36 am CDT (13:36 UTC) |
| 13,500 ft | 240° at 24 kt | −19 kt | 0 °C | 139 kt | 12 h 25 min | 8:31 am CDT (13:31 UTC) |
| 15,500 ft | 240° at 25 kt | −21 kt | -4 °C | 141 kt | 12 h 14 min | 8:20 am CDT (13:20 UTC) |
| 17,500 ft | 240° at 27 kt | −22 kt | -8 °C | 142 kt | 12 h 09 min | 8:15 am CDT (13:15 UTC) |
| 18,000 ft FL180 | 240° at 27 kt | −23 kt | -9 °C | 143 kt | 12 h 04 min | 8:10 am CDT (13:10 UTC) |
| 24,000 ft FL240 | 240° at 28 kt | −25 kt | -20 °C | 145 kt | 11 h 54 min | 8:00 am CDT (13:00 UTC) |
| 30,000 ft FL300 | 250° at 46 kt | −42 kt | -29 °C | 162 kt | 10 h 39 min | 6:45 am CDT (11:45 UTC) |
| 34,000 ft FL340 | 250° at 45 kt | −43 kt | -37 °C | 163 kt | 10 h 35 min | 6:41 am CDT (11:41 UTC) |
| 39,000 ft FL390 | 250° at 43 kt | −42 kt | -48 °C | 162 kt | 10 h 39 min | 6:45 am CDT (11:45 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
| 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; 25 nm from the line | 220/11 | L/V 5° | 280/7 1° | 270/15 -3° | 290/23 -14° | 310/29 -24° | 280/26 -28° | 250/30 -34° | 250/36 -43° |
| SAC | used from 50 nm out; 58 nm from the line | 270/5 | L/V 5° | L/V -1° | 240/11 -5° | 250/22 -15° | 270/25 -24° | 260/31 -27° | 240/39 -33° | 240/39 -42° |
| FAT | used from 100 nm out; 60 nm from the line | 180/7 | 170/9 7° | 200/20 3° | 210/27 -3° | 240/27 -14° | 230/38 -24° | 220/57 -27° | 230/42 -33° | 230/41 -44° |
| BIH | used from 150 nm out; 31 nm from the line | L/V | 210/14 6° | 210/20 -2° | 230/26 -14° | 220/32 -24° | 220/63 -27° | 220/56 -35° | 230/50 -44° | |
| ELY | used from 299 nm out; 91 nm from the line | 210/20 4° | 240/21 -1° | 230/37 -13° | 200/58 -25° | 220/73 -27° | 220/73 -36° | 220/69 -44° | ||
| BCE | used from 399 nm out; 63 nm from the line | 210/47 0° | 200/50 -12° | 220/31 -23° | 220/56 -26° | 220/58 -35° | 230/58 -45° | |||
| FMN | used from 598 nm out; 80 nm from the line | 220/25 13° | 220/28 4° | 210/51 -9° | 220/59 -21° | 230/78 -30° | 230/77 -36° | 230/66 -46° | ||
| ALS | used from 698 nm out; 63 nm from the line | 210/32 5° | 230/48 -8° | 230/49 -20° | 230/78 -30° | 240/74 -36° | 240/61 -47° | |||
| PUB | used from 848 nm out; 55 nm from the line | 210/24 16° | 210/28 8° | 230/43 -8° | 240/42 -21° | 240/77 -30° | 240/72 -36° | 250/51 -47° | ||
| GCK | used from 947 nm out; 71 nm from the line | 200/35 21° | 220/34 14° | 240/30 8° | 240/27 -6° | 240/31 -17° | 240/53 -30° | 250/55 -39° | 250/60 -50° | |
| GAG | used from 1047 nm out; 44 nm from the line | 190/34 19° | 240/27 14° | 240/26 8° | 240/24 -6° | 240/29 -16° | 250/50 -28° | 250/50 -39° | 260/46 -50° | |
| ICT | used from 1147 nm out; 57 nm from the line | 190/34 | 210/34 18° | 240/28 13° | 260/23 7° | 250/23 -6° | 240/29 -17° | 260/40 -30° | 260/47 -40° | 270/42 -51° |
| TUL | used from 1197 nm out; 51 nm from the line | 200/27 | 210/28 15° | 240/24 13° | 250/19 8° | 250/28 -6° | 260/25 -16° | 270/34 -30° | 280/41 -39° | 280/41 -52° |
| FSM | used from 1346 nm out; 54 nm from the line | 200/18 | 210/19 15° | 230/22 13° | 250/18 7° | 270/20 -5° | 280/24 -16° | 280/35 -30° | 290/37 -40° | 300/40 -52° |
| LIT | used from 1396 nm out; 77 nm from the line | 220/12 | 250/12 17° | 250/18 12° | 260/22 6° | 310/14 -5° | 310/25 -17° | 310/40 -31° | 310/38 -41° | 310/46 -52° |
| MEM | used from 1496 nm out; 50 nm from the line | 240/9 | 280/14 17° | 280/20 12° | 290/25 5° | 320/25 -6° | 330/31 -18° | 320/52 -32° | 330/58 -41° | 320/42 -50° |
| HSV | used from 1646 nm out; 55 nm from the line | 290/15 | 330/34 16° | 330/38 11° | 330/40 5° | 320/36 -7° | 320/31 -18° | 320/44 -34° | 330/53 -41° | 330/34 -48° |
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 |
|---|---|---|---|---|---|---|---|
| SFO San Francisco, CA | departure | no report just now | 13 ft | ||||
| LVK Livermore, CA | 30 nm out, 4 nm northwest of the line, tower | no report just now | 399 ft | ||||
| TPH Tonopah, NV | 249 nm out, 12 nm north of the line | no report just now | 5,430 ft | ||||
| BCE Bryce Canyon, UT | 489 nm out, 11 nm south of the line | no report just now | 7,589 ft | ||||
| BDG Blanding, UT | 608 nm out, 14 nm south of the line | no report just now | 5,867 ft | ||||
| RCV Del Norte, CO | 758 nm out, 5 nm northeast of the line | no report just now | 7,955 ft | ||||
| HQG Hugoton, KS | 997 nm out, 4 nm southeast of the line | no report just now | 3,134 ft | ||||
| WDG Enid, OK | 1177 nm out, 22 nm south of the line, tower | no report just now | 1,167 ft | ||||
| ASG Springdale, AR | 1356 nm out, 2 nm northwest of the line, tower | no report just now | 1,352 ft | ||||
| BVX Batesville, AR | 1476 nm out, 2 nm east of the line | no report just now | 465 ft | ||||
| NQA Millington, TN | 1566 nm out, 2 nm east of the line, tower | no report just now | 322 ft | ||||
| HSV Huntsville, AL | destination | no report just now | 628 ft |
The highest airport on this list sits at 7,955 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HSV when you get there the forecast at the estimated arrival, 6:41 am CDT (11:41 UTC)
HSV has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/7455 SAN FRANCISCO, CA, Thursday, October 8, 2026 through Sunday, October 11, 2026 Local 10 nm from the route, at the departure end · security · ended 11 October · ZOA
- 6/7231 Santa Clara, CA, Sunday, October 11, 2026 through Monday, October 12, 2026 UTC 14 nm from the route, at the departure end · drones kept away from a public gathering · until 12 October · ZOA
- 6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 4 nm from the route, 140 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA
Daylight
Sunset at SFO 6:36 pm PDT (01:36 UTC), at HSV 6:16 pm CDT (23:16 UTC) (civil twilight ends 6:41 pm CDT (23:41 UTC)). At 120 knots the arrival at HSV is before sunrise there (6:50 am CDT (11:50 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 Francisco International, Huntsville Intl-Carl T Jones Field.