Plan a flight · Mon 11:52 am EDT (15:52 UTC)

Greenville Spartanburg International to Oakland San Francisco Bay Airport GSP → OAK

1,928 nautical miles (2,219 statute miles) west on a straight line, true course 287°, about 293° magnetic at the departure end (variation 6W). At 120 knots that is 17 h 51 min at the quickest height in today's winds (4,500 ft, a 12-knot headwind), arriving about 2:43 am PDT (09:43 UTC), after sunset at the destination. Right now GSP is VFR, wind from the northwest (320°) at 6 knots, gusting to 16; OAK is VFR, wind from the east-northeast (070°) 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 TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 6,000 ft. Over the first 90 nm of the route.
AIRMET TANGO 2W: 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 829 nm out.
AIRMET TANGO 4W: moderate turbulence above 18,000 ft (due to mountain wave) from 34,000 ft to 43,000 ft. Over the route from 1019 to 1459 nm out.
AIRMET TANGO 2W: moderate turbulence below 18,000 ft (due to mountain wave) up to 22,000 ft. Over the route from 1049 to 1279 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 1099 to 1229 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1199 to 1638 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the route from 1289 to 1399 nm out.
AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 1309 to 1628 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 1459 to 1499 nm out.
AIRMET TANGO 1W: moderate turbulence above 18,000 ft from 18,000 ft to 39,000 ft. Over the last 220 nm of the route.
AIRMET SIERRA 2E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 1768 to 1838 nm out.

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 GSP.

Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first

urgent C680 descending, 27 nm north, 9:32 am EDT (13:32 UTC): remarks: low-level wind shear a 10-knot gain of airspeed knots during the descent runway 35 avl. At the departure end, 27 nm north of the line.
as filed, and in English
```
AVL UUA /OV AVL/TM 1332/FLDURD/TP C680/RM LLWS +10 KT DURD RY35 AVL
```
Report
an urgent report filed through AVL
Where
over AVL
Time
13:32 UTC
Height
during the descent
Aircraft
C680
Remarks
low-level wind shear a 10-knot gain of airspeed knots during the descent runway 35 avl
urgent C182 , 6 nm southwest, 11:17 am EDT (15:17 UTC): remarks: low-level wind shear a 10-knot loss of airspeed from the surface to 800 ft during the descent runway 18 jln. 609 nm along the route, 6 nm southwest of the line.
as filed, and in English
```
JLN UUA /OV KLJN/TM 1517/FLDURD/TP C182/RM LLWS +/-10KT SFC-008 DURD RWY18 JLN
```
Report
an urgent report filed through JLN
Where
over KLJN
Time
15:17 UTC
Height
during the descent
Aircraft
C182
Remarks
low-level wind shear a 10-knot loss of airspeed from the surface to 800 ft during the descent runway 18 jln
urgent E75L at 6,600 ft, 37 nm north, 10:08 am EDT (14:08 UTC): light turbulence, remarks: low-level wind shear a 25-knot gain of airspeed during the climb 17L. 1099 nm along the route, 37 nm north of the line.
as filed, and in English
```
COS UUA /OV COS/TM 1408/FL066/TP E75L/TB LGT/RM LLWS +25KTS DURC 17L
```
Report
an urgent report filed through COS
Where
over COS
Time
14:08 UTC
Height
at 6,600 ft
Aircraft
E75L
Turbulence
light
Remarks
low-level wind shear a 25-knot gain of airspeed during the climb 17L
BE58 at 8,000 ft, 39 nm north, 10:10 am EDT (14:10 UTC): moderate chop turbulence. At the departure end, 39 nm north of the line.
as filed, and in English
```
AVL UA /OV SUG020010/TM 1410/FL080/TP BE58/TB MOD CHOP
```
Report
a routine report filed through AVL
Where
10 nm north (020°) of SUG
Time
14:10 UTC
Height
at 8,000 ft
Aircraft
BE58
Turbulence
moderate chop
F2TH at 36,300 ft, 7 nm north, 9:15 am EDT (13:15 UTC): moderate clear-air turbulence above 36,300 ft, wind 255° at 90 knots. 1089 nm along the route, 7 nm north of the line.
as filed, and in English
```
PUB UA /OV PUB /TM 1315 /FL363 /TP F2TH /WV 25590KT /TB MOD CAT 363
```
Report
a routine report filed through PUB
Where
over PUB
Time
13:15 UTC
Height
at 36,300 ft
Aircraft
F2TH
Wind
from 255° at 90 knots
Turbulence
moderate clear-air turbulence at 36,300 ft
E55P at 8,000 ft, 32 nm north, 10:30 am EDT (14:30 UTC): moderate turbulence. 1099 nm along the route, 32 nm north of the line.
as filed, and in English
```
COS UA /OV 5S COS/TM 1430/FL080/TP E55P/TB MOD
```
Report
a routine report filed through COS
Where
5S cos
Time
14:30 UTC
Height
at 8,000 ft
Aircraft
E55P
Turbulence
moderate
B739 at 34,000 ft, 17 nm northeast, 10:05 am EDT (14:05 UTC): no turbulence, no icing, remarks: ztlfd 34. At the departure end, 17 nm northeast of the line.
as filed, and in English
```
ATL UA /OV SPA/TM 1405/FL340/TP B739/TB NEG/IC NEG/RM ZTLFD 34
```
Report
a routine report filed through ATL
Where
over SPA
Time
14:05 UTC
Height
at 34,000 ft
Aircraft
B739
Turbulence
none
Icing
none
Remarks
ztlfd 34
A320 at 31,000 ft, 17 nm northeast, 9:01 am EDT (13:01 UTC): light turbulence, remarks: ztlfd 34. At the departure end, 17 nm northeast of the line.
as filed, and in English
```
ATL UA /OV SPA/TM 1301/FL310/TP A320/TB LGT/RM ZTLFD 34
```
Report
a routine report filed through ATL
Where
over SPA
Time
13:01 UTC
Height
at 31,000 ft
Aircraft
A320
Turbulence
light
Remarks
ztlfd 34
H25B at 5,000 ft, 27 nm north, 9:38 am EDT (13:38 UTC): overcast above 5,000 ft, remarks: bases 5,000 ft during the descent runway 35 avl. At the departure end, 27 nm north of the line.
as filed, and in English
```
AVL UA /OV AVL/TM 1338/FL050/TP H25B/SK OVC050/RM BASES 050 DURD RY 35 AVL
```
Report
a routine report filed through AVL
Where
over AVL
Time
13:38 UTC
Height
at 5,000 ft
Aircraft
H25B
Sky
overcast from 5,000 ft
Remarks
bases 5,000 ft during the descent runway 35 avl
B737 at 17,000 ft, 35 nm south, 9:14 am EDT (13:14 UTC): no turbulence, remarks: ztlfd 16. At the departure end, 35 nm south of the line.
as filed, and in English
```
ATL UA /OV ELW/TM 1314/FL170/TP B737/TB NEG/RM ZTLFD 16
```
Report
a routine report filed through ATL
Where
over ELW
Time
13:14 UTC
Height
at 17,000 ft
Aircraft
B737
Turbulence
none
Remarks
ztlfd 16
BE36 at 5,600 ft, 31 nm north, 8:58 am EDT (12:58 UTC): a routine report with nothing remarked on. At the departure end, 31 nm north of the line.
as filed, and in English
```
AVL UA /OV AVL347005/TM 1258/FL056/TP BE36/SK TOPS-056
```
Report
a routine report filed through AVL
Where
5 nm north (347°) of AVL
Time
12:58 UTC
Height
at 5,600 ft
Aircraft
BE36
Sky
TOPS-056
CL35 at 45,000 ft, 13 nm southwest, 11:13 am EDT (15:13 UTC): remarks: mountain wave + 20 knots ZTLFD-40. At the departure end, 13 nm southwest of the line.
as filed, and in English
```
TOC UA /OV ODF040015/TM 1513/FL450/TP CL35/RM MTN WAVE +/- 20 KTS ZTLFD-40
```
Report
a routine report filed through TOC
Where
15 nm northeast (040°) of ODF
Time
15:13 UTC
Height
at 45,000 ft
Aircraft
CL35
Remarks
mountain wave + 20 knots ZTLFD-40
B739 at 30,000 ft, 21 nm northeast, 11:35 am EDT (15:35 UTC): light turbulence, remarks: ZTLFD-50. At the departure end, 21 nm northeast of the line.
as filed, and in English
```
AVL UA /OV SOT180020/TM 1535/FL300/TP B739/TB OCNL LGT/RM ZTLFD-50
```
Report
a routine report filed through AVL
Where
20 nm south (180°) of SOT
Time
15:35 UTC
Height
at 30,000 ft
Aircraft
B739
Turbulence
occasional light
Remarks
ZTLFD-50
LJ45 at 41,000 ft, 27 nm south, 9:45 am EDT (13:45 UTC): remarks: mountain wave + 40FT 10 knots ztlfd 40. At the departure end, 27 nm south of the line.
as filed, and in English
```
ATL UA /OV ODF/TM 1345/FL410/TP LJ45/RM MTN WAVE +- 40FT 10 KTS ZTLFD 40
```
Report
a routine report filed through ATL
Where
over ODF
Time
13:45 UTC
Height
at 41,000 ft
Aircraft
LJ45
Remarks
mountain wave + 40FT 10 knots ztlfd 40

16 more routine reports are on the map.

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 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 17 forecast points nearest it (GSP, TYS, BNA, CGI, SGF, TUL, ICT, GCK, PUB, ALS, GJT, BCE, ELY, BIH, FAT, SAC, SFO). 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	250° at 14 kt	+12 kt	20 °C	108 kt	17 h 51 min	2:43 am PDT (09:43 UTC)
6,500 ft	250° at 15 kt	+14 kt	15 °C	106 kt	18 h 11 min	3:03 am PDT (10:03 UTC)
8,500 ft	240° at 17 kt	+14 kt	10 °C	106 kt	18 h 11 min	3:03 am PDT (10:03 UTC)
10,500 ft	240° at 20 kt	+16 kt	5 °C	104 kt	18 h 32 min	3:24 am PDT (10:24 UTC)
12,500 ft	240° at 22 kt	+19 kt	1 °C	101 kt	19 h 05 min	3:57 am PDT (10:57 UTC)
14,500 ft	240° at 24 kt	+21 kt	-3 °C	99 kt	19 h 28 min	4:20 am PDT (11:20 UTC)
16,500 ft	240° at 26 kt	+23 kt	-7 °C	97 kt	19 h 53 min	4:45 am PDT (11:45 UTC)
18,000 ft FL180	250° at 27 kt	+24 kt	-10 °C	96 kt	20 h 05 min	4:57 am PDT (11:57 UTC)
24,000 ft FL240	250° at 36 kt	+32 kt	-21 °C	88 kt	21 h 55 min	6:47 am PDT (13:47 UTC)
30,000 ft FL300	250° at 51 kt	+49 kt	-31 °C	71 kt	27 h 09 min	12:01 pm PDT (19:01 UTC)
34,000 ft FL340	260° at 54 kt	+53 kt	-38 °C	67 kt	28 h 47 min	1:39 pm PDT (20:39 UTC)
39,000 ft FL390	260° at 52 kt	+51 kt	-48 °C	69 kt	27 h 57 min	12:49 pm PDT (19:49 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
GSP	used from 0 nm out; 25 nm from the line	330/14	360/26 17°	360/22 11°	330/20 6°	310/27 -5°	320/24 -18°	310/28 -33°	320/38 -40°	330/30 -51°
TYS	used from 50 nm out; 37 nm from the line	320/8	330/17 16°	320/17 9°	310/24 6°	290/23 -6°	290/28 -19°	300/36 -33°	310/48 -40°	320/46 -50°
BNA	used from 150 nm out; 56 nm from the line	270/14	270/10 14°	280/19 11°	280/26 6°	280/25 -6°	280/31 -18°	300/44 -32°	300/53 -40°	310/51 -49°
CGI	used from 300 nm out; 71 nm from the line	250/22	250/17 15°	250/25 11°	260/27 7°	270/35 -7°	280/38 -17°	300/63 -31°	300/62 -38°	300/55 -49°
SGF	used from 450 nm out; 86 nm from the line	220/23	240/29 16°	240/21 13°	240/15 7°	270/28 -7°	260/34 -18°	280/67 -29°	290/59 -37°	290/51 -49°
TUL	used from 649 nm out; 74 nm from the line	210/24	220/29 18°	240/17 14°	250/16 8°	260/28 -6°	260/36 -18°	270/63 -28°	280/54 -37°	290/46 -49°
ICT	used from 699 nm out; 30 nm from the line	200/26	240/31 21°	230/30 14°	240/30 7°	250/38 -8°	240/49 -19°	260/73 -27°	270/69 -37°	270/63 -48°
GCK	used from 849 nm out; 37 nm from the line		250/23 20°	230/35 13°	240/47 7°	240/42 -7°	250/43 -20°	240/81 -28°	250/87 -37°	250/83 -49°
PUB	used from 999 nm out; 67 nm from the line			250/31 11°	240/42 5°	230/46 -7°	230/59 -20°	240/77 -30°	230/94 -37°	240/95 -49°
ALS	used from 1149 nm out; 53 nm from the line				230/34 2°	230/57 -9°	230/72 -19°	230/82 -27°	230/91 -36°	240/89 -48°
GJT	used from 1199 nm out; 75 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°
BCE	used from 1349 nm out; 86 nm from the line				200/31 -2°	190/46 -14°	210/72 -24°	210/87 -30°	220/89 -38°	220/78 -46°
ELY	used from 1549 nm out; 64 nm from the line			210/17 0°	220/30 -6°	190/50 -19°	200/56 -28°	210/76 -32°	210/63 -37°	210/59 -43°
BIH	used from 1648 nm out; 85 nm from the line		L/V	340/7 -3°	L/V -8°	250/15 -17°	330/30 -24°	270/23 -34°	230/35 -39°	230/39 -44°
FAT	used from 1798 nm out; 70 nm from the line	L/V	170/5 2°	130/10 -4°	L/V -7°	350/60 -11°	340/62 -23°	320/36 -38°	270/25 -41°	250/32 -44°
SAC	used from 1848 nm out; 45 nm from the line	L/V	320/8 4°	330/12 -3°	350/25 -6°	350/63 -12°	340/65 -24°	340/60 -40°	340/45 -45°	290/24 -45°
SFO	used from 1898 nm out; 24 nm from the line	010/6	360/13 5°	360/17 -3°	350/39 -2°	350/56 -11°	350/57 -24°	350/59 -40°	340/50 -46°	320/30 -47°

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
GSP Greer, SC	departure	VFR	from the northwest (320°) at 6 knots, gusting to 16	10+ mi	none	963 ft	10:53 am EDT (14:53 UTC)
MMI Athens, TN	120 nm out, 3 nm south of the line	VFR	calm	10+ mi	none	874 ft	15:35 UTC
MQY Smyrna, TN	220 nm out, 7 nm north of the line, tower	VFR	from the southeast (130°) at 4 knots	10+ mi	none	543 ft	14:56 UTC
SGF Springfield, MO	559 nm out, 8 nm north of the line, tower	VFR	from the south-southwest (210°) at 12 knots, gusting to 20	10+ mi	none	1,268 ft	14:52 UTC
ICT Wichita, KS	749 nm out, 5 nm northwest of the line, tower	VFR Sky: a few clouds at 15,000 feet, scattered clouds at 19,000 feet	from the south (190°) at 18 knots, gusting to 27	10+ mi	none	1,332 ft	14:53 UTC
GCK Garden City, KS	909 nm out, 2 nm west of the line, tower	VFR	from the west-southwest (240°) at 18 knots	10+ mi	none	2,890 ft	14:54 UTC
PUB Pueblo, CO	1089 nm out, 6 nm north of the line, tower	VFR	from the northwest (310°) at 7 knots	10+ mi	none	4,729 ft	14:53 UTC
AIB Nucla, CO	1279 nm out, 5 nm southwest of the line	IFR Sky: a broken layer at 6,000 feet, overcast at 8,500 feet Weather: haze	from the south (190°) at 14 knots, gusting to 24	1.25 mi	6,000 ft	5,945 ft	08:15 UTC
HVE Hanksville, UT	1379 nm out, 7 nm northwest of the line	VFR Sky: scattered clouds at 11,000 feet	calm	10+ mi	none	4,453 ft	15:30 UTC
TPH Tonopah, NV	1688 nm out, 6 nm southeast of the line	VFR Sky: a few clouds at 2,800 feet, a broken layer at 7,000 feet	calm	10+ mi	7,000 ft	5,430 ft	14:56 UTC
LVK Livermore, CA	1908 nm out, 4 nm south of the line, tower	VFR	calm	10+ mi	none	399 ft	14:53 UTC
OAK Oakland, CA	destination	VFR Sky: a few clouds at 1,600 feet	from the east-northeast (070°) at 4 knots	10+ mi	none	9 ft	7:53 am PDT (14:53 UTC)

The highest airport on this list sits at 5,945 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At OAK when you get there the forecast at the estimated arrival, 2:43 am PDT (09:43 UTC)

Wind from the west at 8 knots, visibility more than 6 miles, clear skies VFR

The whole forecast for OAK

From Mon 5:00 am PDT (12:00 UTC): wind from the east at 5 knots, visibility more than 6 miles, a few clouds at 2,000 feet
From Mon 11:00 am PDT (18:00 UTC): wind from the west at 8 knots, visibility more than 6 miles, clear skies

The forecast for GSP, the departure

From Mon 8:00 am EDT (12:00 UTC): wind from the west-northwest at 11 knots, visibility more than 6 miles, a few clouds at 5,000 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the north-northwest at 10 knots, gusting to 18, visibility more than 6 miles, clear skies
From Mon 5:00 pm EDT (21:00 UTC): wind from the north-northwest at 5 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Tue 1:00 am EDT (05:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet

Temporary flight restrictions on the line or within 25 nm of it

6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 25 nm from the route, 230 nm along the route · security · until 1 August · ZME
6/7094 45NM NE MERCED, CA, Sunday, October 4, 2026 through Tuesday, October 20, 2026 UTC 14 nm from the route, 1808 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 20 October · ZOA

Daylight

Sunset at GSP 6:58 pm EDT (22:58 UTC), at OAK 6:34 pm PDT (01:34 UTC) (civil twilight ends 7:00 pm PDT (02:00 UTC)). At 120 knots the arrival at OAK is before sunrise there (7:15 am PDT (14:15 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 Southeast · loop National Weather Service

Radar now, the lower Mississippi valley · loop National Weather Service

Radar now, the upper Mississippi valley · loop National Weather Service

Radar, the whole country · loop National Weather Service

Surface analysis now Weather Prediction Center

Forecast chart, 12 hours ahead Weather Prediction Center

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: Greenville Spartanburg International, Oakland San Francisco Bay Airport.