San Francisco International to MC Ghee Tyson Airport SFO → TYS
1,838 nautical miles (2,115 statute miles) east on a straight line, true course 081°, about 067° magnetic at the departure end (variation 14E). At 120 knots that is 11 h 12 min at the quickest height in today's winds (34,000 ft, a 44-knot tailwind), arriving about 8:15 am EDT (12:15 UTC). Right now SFO is VFR, wind from the west-southwest (240°) at 13 knots; TYS is marginal VFR, wind from the south-southwest (210°) at 7 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
- AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 120 to 340 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 270 to 589 nm out.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 290 to 829 nm out.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 300 to 759 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 350 to 869 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 469 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 519 to 739 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 609 to 619 nm out.
- AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 1688 to 1728 nm out.
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the route from 1758 to 1818 nm out.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). 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
- E75L at 18,000 ft, 30 nm south, 4:24 pm PDT (23:24 UTC): moderate turbulence from 18,000 ft to 22,000 ft, remarks: mountain wave a 10-knot loss of airspeed entered by zoa fdcs. 180 nm along the route, 30 nm south of the line.
as filed, and in English
LOL UA /OV BIH300011/TM 2324/FL 180/TP E75L/TB MOD 180-220/RM MTN WAVE /-10 ENTERED BY ZOA FDCS AWC-WEB
- Report
- a routine report filed through LOL
- Where
- 11 nm northwest (300°) of BIH
- Time
- 23:24 UTC
- Height
- at 18,000 ft
- Aircraft
- E75L
- Turbulence
- moderate from 18,000 ft to 22,000 ft
- Remarks
- mountain wave a 10-knot loss of airspeed entered by zoa fdcs
- E170 at 10,000 ft, 33 nm north, 4:41 pm PDT (23:41 UTC): moderate turbulence up to 10,000 ft, remarks: during the climb. 659 nm along the route, 33 nm north of the line.
as filed, and in English
GJT UA /OV GJT144009/TM 2341/FL100/TP E170/TB MOD SFC-100/RM DURC
- Report
- a routine report filed through GJT
- Where
- 9 nm southeast (144°) of GJT
- Time
- 23:41 UTC
- Height
- at 10,000 ft
- Aircraft
- E170
- Turbulence
- moderate from the surface to 10,000 ft
- Remarks
- during the climb
- C680 at 18,000 ft, 38 nm north, 3:35 pm PDT (22:35 UTC): moderate turbulence, remarks: from 18,000 ft to 10,000 ft. 719 nm along the route, 38 nm north of the line.
as filed, and in English
ASE UA /OV ASE230020/TM 2235/FL180/TP C680/TB MOD/RM 180-100
- Report
- a routine report filed through ASE
- Where
- 20 nm southwest (230°) of ASE
- Time
- 22:35 UTC
- Height
- at 18,000 ft
- Aircraft
- C680
- Turbulence
- moderate
- Remarks
- from 18,000 ft to 10,000 ft
- C680A at 16,000 ft, 48 nm north, 3:59 pm PDT (22:59 UTC): moderate turbulence, scattered clouds above 16,000 ft, remarks: during the descent. 729 nm along the route, 48 nm north of the line.
as filed, and in English
ASE UA /OV HAERI/TM 2259/FL160/TP C680A/SK SCT160/TB CONS MOD/RM DURD
- Report
- a routine report filed through ASE
- Where
- haeri
- Time
- 22:59 UTC
- Height
- at 16,000 ft
- Aircraft
- C680A
- Sky
- scattered clouds from 16,000 ft
- Turbulence
- continuous moderate
- Remarks
- during the descent
- UAL2238 at 38,000 ft, 18 nm south, 4:44 pm PDT (23:44 UTC): moderate turbulence, wind 244° at 64 knots. 739 nm along the route, 18 nm south of the line.
as filed, and in English
ARP UAL2238 3807N 10649W 2344 F380 244/064KT TB CONT MOD TURB IC
- Report
- a routine report filed through ARP
- B737 at 27,000 ft, 33 nm north, 3:14 pm PDT (22:14 UTC): remarks: mountain wave a 10-knot loss of airspeed +/-300FT entered by zoa fdcs. 160 nm along the route, 33 nm north of the line.
as filed, and in English
RNO UA /OV 3830N11910W/TM 2214/FL270/TP B737/RM MTN WAVE +/-10KTS +/-300FT ENTERED BY ZOA FDCS
- Report
- a routine report filed through RNO
- Where
- 3830N11910W
- Time
- 22:14 UTC
- Height
- at 27,000 ft
- Aircraft
- B737
- Remarks
- mountain wave a 10-knot loss of airspeed +/-300FT entered by zoa fdcs
- C17 at 27,000 ft, 47 nm north, 3:58 pm PDT (22:58 UTC): light rime icing, -25 °C. 469 nm along the route, 47 nm north of the line.
as filed, and in English
DTA UA /OV DTA180010/TM 2258/FL270/TP C17/TA M25/IC LGT RIME /ZLC
- Report
- a routine report filed through DTA
- Where
- 10 nm south (180°) of DTA
- Time
- 22:58 UTC
- Height
- at 27,000 ft
- Aircraft
- C17
- Temperature
- −25 °C
- Icing
- light rime zlc
- B738 at 35,000 ft, 37 nm south, 5:14 pm PDT (00:14 UTC): remarks: zdvwc. 639 nm along the route, 37 nm south of the line.
as filed, and in English
CEZ UA /OV DVC/TM 0014/FL350/TP B738/SK TOP 310/RM ZDVWC
- Report
- a routine report filed through CEZ
- Where
- over DVC
- Time
- 00:14 UTC
- Height
- at 35,000 ft
- Aircraft
- B738
- Sky
- top 31,000 ft
- Remarks
- zdvwc
- LJ60 at 15,000 ft, 27 nm north, 5:28 pm PDT (00:28 UTC): light to moderate icing from 16,500 ft to 19,000 ft, -13 °C, remarks: during the descent zdvwc. 709 nm along the route, 27 nm north of the line.
as filed, and in English
MTJ UA /OV MTJ030030/TM 0028/FL150/TP LJ60/TA M13/IC LGT-MOD 190-165/RM DURD ZDVWC
- Report
- a routine report filed through MTJ
- Where
- 30 nm northeast (030°) of MTJ
- Time
- 00:28 UTC
- Height
- at 15,000 ft
- Aircraft
- LJ60
- Temperature
- −13 °C
- Icing
- light to moderate from 19,000 ft to 16,500 ft
- Remarks
- during the descent zdvwc
- UAL2862 at 34,000 ft, 46 nm north, 3:39 pm PDT (22:39 UTC): no turbulence, wind 238° at 63 knots. 719 nm along the route, 46 nm north of the line.
as filed, and in English
ARP UAL2862 3911N 10708W 2239 F340 238/063KT TB SMTH IC
- Report
- a routine report filed through ARP
- PRM1 at 41,000 ft, 45 nm south, 4:38 pm PDT (23:38 UTC): light to moderate clear-air turbulence, remarks: ZDVWC-46. 759 nm along the route, 45 nm south of the line.
as filed, and in English
ALS UA /OV ALS290035/TM 2338/FL410/TP PRM1/TB LGT-MOD CAT/RM ZDVWC-46
- Report
- a routine report filed through ALS
- Where
- 35 nm west (290°) of ALS
- Time
- 23:38 UTC
- Height
- at 41,000 ft
- Aircraft
- PRM1
- Turbulence
- light to moderate clear-air turbulence
- Remarks
- ZDVWC-46
- B738 at 35,000 ft, 28 nm south, 3:18 pm PDT (22:18 UTC): light to moderate chop turbulence, remarks: ZDVWC-30. 769 nm along the route, 28 nm south of the line.
as filed, and in English
ALS UA /OV ALS319040/TM 2218/FL350/TP B738/TB CONS LGT-OCNL MOD CHOP/RM ZDVWC-30
- Report
- a routine report filed through ALS
- Where
- 40 nm northwest (319°) of ALS
- Time
- 22:18 UTC
- Height
- at 35,000 ft
- Aircraft
- B738
- Turbulence
- continuous lgt-ocnl moderate chop
- Remarks
- ZDVWC-30
- BE9L at 20,000 ft, 30 nm south, 5:34 pm PDT (00:34 UTC): light rime icing, -9 °C, remarks: ZDVWC-41. 779 nm along the route, 30 nm south of the line.
as filed, and in English
ALS UA /OV ALS330035/TM 0034/FL200/TP BE9L/TA M09/IC LGT RIME/RM ZDVWC-41
- Report
- a routine report filed through ALS
- Where
- 35 nm northwest (330°) of ALS
- Time
- 00:34 UTC
- Height
- at 20,000 ft
- Aircraft
- BE9L
- Temperature
- −9 °C
- Icing
- light rime
- Remarks
- ZDVWC-41
- CL35 at 43,000 ft, 14 nm south, 5:21 pm PDT (00:21 UTC): remarks: mtw +/-300FT zdvwc. 809 nm along the route, 14 nm south of the line.
as filed, and in English
PUB UA /OV PUB250040/TM 0021/FL430/TP CL35/RM MTW +/-300FT ZDVWC
- Report
- a routine report filed through PUB
- Where
- 40 nm west (250°) of PUB
- Time
- 00:21 UTC
- Height
- at 43,000 ft
- Aircraft
- CL35
- Remarks
- mtw +/-300FT zdvwc
14 more routine reports are on the map.
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 16 forecast points nearest it (SFO, SAC, FAT, BIH, ELY, BCE, GJT, ALS, PUB, GCK, ICT, TUL, SGF, CGI, BNA, TYS). 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 12 kt | −9 kt | 21 °C | 129 kt | 14 h 15 min | 11:18 am EDT (15:18 UTC) |
| 7,500 ft | 230° at 18 kt | −14 kt | 12 °C | 134 kt | 13 h 43 min | 10:46 am EDT (14:46 UTC) |
| 9,500 ft | 240° at 19 kt | −17 kt | 9 °C | 137 kt | 13 h 25 min | 10:28 am EDT (14:28 UTC) |
| 11,500 ft | 240° at 22 kt | −20 kt | 4 °C | 140 kt | 13 h 08 min | 10:11 am EDT (14:11 UTC) |
| 13,500 ft | 240° at 23 kt | −21 kt | 0 °C | 141 kt | 13 h 02 min | 10:05 am EDT (14:05 UTC) |
| 15,500 ft | 240° at 25 kt | −23 kt | -4 °C | 143 kt | 12 h 51 min | 9:54 am EDT (13:54 UTC) |
| 17,500 ft | 240° at 26 kt | −24 kt | -8 °C | 144 kt | 12 h 46 min | 9:49 am EDT (13:49 UTC) |
| 18,000 ft FL180 | 240° at 26 kt | −25 kt | -9 °C | 145 kt | 12 h 41 min | 9:44 am EDT (13:44 UTC) |
| 24,000 ft FL240 | 240° at 28 kt | −27 kt | -20 °C | 147 kt | 12 h 30 min | 9:33 am EDT (13:33 UTC) |
| 30,000 ft FL300 | 250° at 43 kt | −42 kt | -30 °C | 162 kt | 11 h 21 min | 8:24 am EDT (12:24 UTC) |
| 34,000 ft FL340 | 250° at 44 kt | −44 kt | -38 °C | 164 kt | 11 h 12 min | 8:15 am EDT (12:15 UTC) |
| 39,000 ft FL390 | 260° at 43 kt | −44 kt | -47 °C | 164 kt | 11 h 12 min | 8:15 am EDT (12:15 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; 54 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; 67 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; 41 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 300 nm out; 73 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; 72 nm from the line | 210/47 0° | 200/50 -12° | 220/31 -23° | 220/56 -26° | 220/58 -35° | 230/58 -45° | |||
| GJT | used from 549 nm out; 92 nm from the line | 210/40 11° | 210/46 3° | 210/61 -10° | 210/68 -22° | 220/57 -29° | 230/59 -36° | 240/66 -46° | ||
| ALS | used from 749 nm out; 59 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 799 nm out; 22 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 949 nm out; 54 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° | |
| ICT | used from 1099 nm out; 61 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 1248 nm out; 92 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° |
| SGF | used from 1298 nm out; 55 nm from the line | 210/21 | 210/21 16° | 240/28 12° | 260/24 7° | 280/21 -6° | 280/26 -18° | 290/38 -31° | 290/37 -41° | 300/49 -52° |
| CGI | used from 1448 nm out; 86 nm from the line | 250/10 | 290/12 17° | 290/18 11° | 300/22 5° | 320/25 -8° | 330/30 -18° | 320/53 -33° | 320/66 -42° | 320/56 -50° |
| BNA | used from 1648 nm out; 36 nm from the line | 280/13 | 340/34 16° | 330/38 10° | 330/44 5° | 330/39 -8° | 330/38 -19° | 320/49 -34° | 330/53 -40° | 330/35 -47° |
| TYS | used from 1748 nm out; 65 nm from the line | 290/19 | 310/22 11° | 330/25 7° | 330/34 3° | 320/37 -7° | 300/37 -18° | 300/37 -34° | 280/29 -39° | 270/29 -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 | VFR Sky: a few clouds at 2,000 feet, a few clouds at 5,000 feet | from the west-southwest (240°) at 13 knots | 10+ mi | none | 13 ft | 5:56 pm PDT (00:56 UTC) |
| LVK Livermore, CA | 30 nm out, 3 nm west of the line, tower | VFR Sky: scattered clouds at 7,500 feet | from the west-northwest (290°) at 11 knots | 10+ mi | none | 399 ft | 00:53 UTC |
| TPH Tonopah, NV | 250 nm out, 5 nm southeast of the line | VFR | from the south (170°) at 21 knots, gusting to 33 | 10+ mi | none | 5,430 ft | 00:56 UTC |
| HVE Hanksville, UT | 549 nm out, 5 nm east of the line | VFR Sky: scattered clouds at 6,000 feet | from the southeast (130°) at 11 knots | 10+ mi | none | 4,453 ft | 00:50 UTC |
| MTJ Montrose, CO | 689 nm out, 6 nm northwest of the line | VFR | from the southwest (220°) at 5 knots | 10+ mi | none | 5,758 ft | 00:53 UTC |
| PUB Pueblo, CO | 849 nm out, 5 nm southwest of the line, tower | VFR Sky: a few clouds at 12,000 feet | from the west (280°) at 12 knots | 10+ mi | none | 4,729 ft | 00:53 UTC |
| GCK Garden City, KS | 1029 nm out, 15 nm south of the line, tower | VFR | from the south (180°) at 12 knots | 10+ mi | none | 2,890 ft | 00:54 UTC |
| HUT Hutchinson, KS | 1158 nm out, 7 nm north of the line, tower | VFR | from the south (170°) at 12 knots | 10+ mi | none | 1,542 ft | 00:52 UTC |
| SGF Springfield, MO | 1378 nm out, 12 nm south of the line, tower | VFR | from the south-southwest (210°) at 8 knots | 10+ mi | none | 1,268 ft | 00:52 UTC |
| PAH Paducah, KY | 1598 nm out, 19 nm north of the line, tower | VFR | calm | 10+ mi | none | 410 ft | 00:00 UTC |
| JWN Nashville, TN | 1698 nm out, 13 nm south of the line, tower | VFR | calm | 10+ mi | none | 501 ft | 00:50 UTC |
| TYS Knoxville, TN | destination | marginal VFR Sky: overcast at 1,600 feet | from the south-southwest (210°) at 7 knots | 10+ mi | 1,600 ft | 986 ft | 8:53 pm EDT (00:53 UTC) |
The highest airport on this list sits at 5,758 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At TYS when you get there the forecast at the estimated arrival, 8:15 am EDT (12:15 UTC)
Wind light and variable, visibility more than 6 miles, a few clouds at 3,500 feet, scattered clouds at 25,000 feet VFR
The whole forecast for TYS
- From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 1,000 feet, a broken layer at 1,500 feet
- From Mon 3:00 am EDT (07:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, a broken layer at 2,500 feet
- From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 3,500 feet, scattered clouds at 25,000 feet
The forecast for SFO, the departure
- From Sun 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 16 knots, visibility more than 6 miles, a few clouds at 2,000 feet
- From Sun 7:00 pm PDT (02:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, a few clouds at 2,000 feet
- From Mon 1:00 am PDT (08:00 UTC): wind from the south-southeast at 4 knots, visibility more than 6 miles, clear skies
- From Mon 11:00 am PDT (18:00 UTC): wind from the east-northeast at 5 knots, visibility more than 6 miles, clear skies
- From Mon 3:00 pm PDT (22:00 UTC): wind from the west at 10 knots, visibility more than 6 miles, clear skies
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 15 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 12 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
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 4 nm from the route, 1698 nm along the route · security · until 1 August · ZME
Daylight
Sunset at SFO 6:36 pm PDT (01:36 UTC), at TYS 7:04 pm EDT (23:04 UTC) (civil twilight ends 7:30 pm EDT (23:30 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, MC Ghee Tyson Airport.