Plan a flight · Sun 5:36 pm PDT (00:36 UTC)

Oakland San Francisco Bay Airport to Louisville Muhammad Ali International OAK → SDF

1,716 nautical miles (1,975 statute miles) east on a straight line, true course 078°, about 064° magnetic at the departure end (variation 14E). At 120 knots that is 10 h 09 min at the quickest height in today's winds (39,000 ft, a 49-knot tailwind), arriving about 6:45 am EDT (10:45 UTC), after sunset at the destination. Right now OAK is VFR, wind from the west-southwest (240°) at 17 knots; SDF is marginal VFR, wind from the west-southwest (250°) 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: 2,206 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

SIGMET W72W: thunderstorms (a convective SIGMET) up to 30,000 ft, moving from the southwest at 20 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 180 to 239 nm out.
as issued
```
WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 72W
VALID UNTIL 0155Z
NV
FROM 60SSW BAM-60W ELY-OAL-40WNW OAL-60SSW BAM
AREA TS MOV FROM 23020KT. TOPS TO FL300.
```

SIGMET W71W: thunderstorms (a convective SIGMET) up to 27,000 ft, moving from the south at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 459 to 459 nm out.

as issued

WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 71W
VALID UNTIL 0155Z
WY UT ID
FROM 40S DBS-40WNW BPI-30WSW MTU-30SSW DTA-30SE TWF-40S DBS
AREA EMBD TS MOV FROM 20040KT. TOPS TO FL270.

SIGMET W68W: thunderstorms (a convective SIGMET) up to 36,000 ft, moving from the southwest at 40 knots, until 6:55 pm PDT (01:55 UTC). Over the route from 569 to 748 nm out.

as issued

WSUS33 KKCI 112355
MKCW WST 112355
CONVECTIVE SIGMET 68W
VALID UNTIL 0155Z
CO NM AZ UT
FROM 30W CHE-20NNW TBE-60SE ABQ-40N SJN-30SW MTU-30W CHE
AREA TS MOV FROM 23040KT. TOPS TO FL360.

AIRMET TANGO 3W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the route from 110 to 329 nm out.
AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 239 to 599 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 908 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 289 to 758 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 379 to 848 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 489 to 738 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). Near the route, 499 nm along 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 OAK.

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

urgent E545 at 6,000 ft, 14 nm north, 2:49 pm PDT (21:49 UTC): remarks: low-level wind shear + 5 knots fap runway 17L. 818 nm along the route, 14 nm north of the line.
as filed, and in English
```
APA UUA /OV APA350002/TM 2149/FL060/TP E545/RM LLWS +/- 5 KT FAP RWY 17L
```
Report
an urgent report filed through APA
Where
2 nm north (350°) of APA
Time
21:49 UTC
Height
at 6,000 ft
Aircraft
E545
Remarks
low-level wind shear + 5 knots fap runway 17L
E75L at 18,000 ft, 47 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. 170 nm along the route, 47 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, 16 nm south, 4:41 pm PDT (23:41 UTC): moderate turbulence up to 10,000 ft, remarks: during the climb. 649 nm along the route, 16 nm south 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, 15 nm south, 3:35 pm PDT (22:35 UTC): moderate turbulence, remarks: from 18,000 ft to 10,000 ft. 708 nm along the route, 15 nm south 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
C650 at 40,000 ft, 8 nm northwest, 4:48 pm PDT (23:48 UTC): moderate turbulence, remarks: ZDVWC-03. 728 nm along the route, 8 nm northwest of the line.
as filed, and in English
```
ASE UA /OV DBL/TM 2348/FL400/TP C650/TB MOD /RM ZDVWC-03
```
Report
a routine report filed through ASE
Where
over DBL
Time
23:48 UTC
Height
at 40,000 ft
Aircraft
C650
Turbulence
moderate
Remarks
ZDVWC-03
C680A at 16,000 ft, 6 nm south, 3:59 pm PDT (22:59 UTC): moderate turbulence, scattered clouds above 16,000 ft, remarks: during the descent. 728 nm along the route, 6 nm south 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
C700 at 16,000 ft, 13 nm north, 2:55 pm PDT (21:55 UTC): moderate turbulence. 738 nm along the route, 13 nm north of the line.
as filed, and in English
```
ASE UA /OV WERNR/TM 2155/FL160/TP C700/TB MOD
```
Report
a routine report filed through ASE
Where
wernr
Time
21:55 UTC
Height
at 16,000 ft
Aircraft
C700
Turbulence
moderate
CRJ2 at 19,000 ft, 26 nm south, 3:02 pm PDT (22:02 UTC): moderate chop turbulence, remarks: during the climb from KDEN from 12,000 ft to 19,000 ft ZDVWC-41. 818 nm along the route, 26 nm south of the line.
as filed, and in English
```
COS UA /OV BRK262015/TM 2202/FL190/TP CRJ2/TB MOD CHOP/RM DURC FROM KDEN 120-190 ZDVWC-41
```
Report
a routine report filed through COS
Where
15 nm west (262°) of BRK
Time
22:02 UTC
Height
at 19,000 ft
Aircraft
CRJ2
Turbulence
moderate chop
Remarks
during the climb from KDEN from 12,000 ft to 19,000 ft ZDVWC-41
GLF5 at 45,000 ft, 10 nm south, 3:44 pm PDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. 828 nm along the route, 10 nm south of the line.
as filed, and in English
```
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
```
Report
a routine report filed through COS
Where
25 nm north (350°) of COS
Time
22:44 UTC
Height
at 45,000 ft
Aircraft
GLF5
Turbulence
moderate
Remarks
ZDVWC-46
UAL2199 at 35,000 ft, 43 nm north, 4:31 pm PDT (23:31 UTC): moderate chop turbulence, wind 247° at 79 knots. 878 nm along the route, 43 nm north of the line.
as filed, and in English
```
ARP UAL2199 4007N 10337W 2331 F350 247/079KT TB MOD CHOP IC
```
Report
a routine report filed through ARP
B737 at 27,000 ft, 17 nm north, 3:14 pm PDT (22:14 UTC): remarks: mountain wave a 10-knot loss of airspeed +/-300FT entered by zoa fdcs. 150 nm along the route, 17 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, 11 nm north, 3:58 pm PDT (22:58 UTC): light rime icing, -25 °C. 459 nm along the route, 11 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 38,000 ft, 39 nm south, 2:47 pm PDT (21:47 UTC): remarks: mtw 10-15KT ZDVWC-03. 629 nm along the route, 39 nm south of the line.
as filed, and in English
```
ASE UA /OV DBL229104/TM 2147/FL380/TP B738/RM MTW -10-15KT ZDVWC-03
```
Report
a routine report filed through ASE
Where
104 nm southwest (229°) of DBL
Time
21:47 UTC
Height
at 38,000 ft
Aircraft
B738
Remarks
mtw 10-15KT ZDVWC-03
E75L at 22,000 ft, 17 nm south, 2:40 pm PDT (21:40 UTC): remarks: ZDVWC-11. 659 nm along the route, 17 nm south of the line.
as filed, and in English
```
GJT UA /OV JNC090020/TM 2140/FL220/TP E75L/SK TOP220/RM ZDVWC-11
```
Report
a routine report filed through GJT
Where
20 nm east (090°) of JNC
Time
21:40 UTC
Height
at 22,000 ft
Aircraft
E75L
Sky
TOP220
Remarks
ZDVWC-11

16 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 14 forecast points nearest it (SFO, SAC, BIH, ELY, BCE, GJT, DEN, GLD, SLN, MKC, COU, STL, EVV, LOU). 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 15 kt	−10 kt		130 kt	13 h 12 min	9:48 am EDT (13:48 UTC)
7,500 ft	220° at 20 kt	−14 kt	12 °C	134 kt	12 h 48 min	9:24 am EDT (13:24 UTC)
9,500 ft	230° at 20 kt	−17 kt	9 °C	137 kt	12 h 32 min	9:08 am EDT (13:08 UTC)
11,500 ft	240° at 22 kt	−20 kt	4 °C	140 kt	12 h 15 min	8:51 am EDT (12:51 UTC)
13,500 ft	240° at 24 kt	−22 kt	0 °C	142 kt	12 h 05 min	8:41 am EDT (12:41 UTC)
15,500 ft	240° at 26 kt	−24 kt	-4 °C	144 kt	11 h 55 min	8:31 am EDT (12:31 UTC)
17,500 ft	240° at 28 kt	−26 kt	-9 °C	146 kt	11 h 45 min	8:21 am EDT (12:21 UTC)
18,000 ft FL180	240° at 28 kt	−27 kt	-10 °C	147 kt	11 h 40 min	8:16 am EDT (12:16 UTC)
24,000 ft FL240	230° at 30 kt	−26 kt	-21 °C	146 kt	11 h 45 min	8:21 am EDT (12:21 UTC)
30,000 ft FL300	250° at 42 kt	−41 kt	-30 °C	161 kt	10 h 40 min	7:16 am EDT (11:16 UTC)
34,000 ft FL340	250° at 46 kt	−47 kt	-38 °C	167 kt	10 h 17 min	6:53 am EDT (10:53 UTC)
39,000 ft FL390	260° at 48 kt	−49 kt	-47 °C	169 kt	10 h 09 min	6:45 am EDT (10:45 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; 34 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; 50 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°
BIH	used from 100 nm out; 76 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 249 nm out; 90 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 449 nm out; 77 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; 76 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°
DEN	used from 748 nm out; 63 nm from the line			190/31 16°	210/32 7°	240/41 -8°	230/47 -21°	240/56 -32°	250/65 -37°	250/61 -47°
GLD	used from 898 nm out; 44 nm from the line		190/29	200/30 15°	240/23 8°	250/39 -7°	230/39 -19°	230/57 -31°	240/67 -39°	250/62 -49°
SLN	used from 1048 nm out; 89 nm from the line	190/37	220/39 20°	240/31 14°	250/24 7°	260/25 -7°	250/26 -17°	250/44 -31°	260/47 -40°	260/47 -50°
MKC	used from 1247 nm out; 25 nm from the line	200/28	220/30 16°	270/20 11°	280/22 7°	260/27 -6°	270/27 -18°	280/38 -32°	270/38 -40°	280/50 -52°
COU	used from 1347 nm out; 38 nm from the line	210/16	220/19 15°	240/33 10°	250/29 7°	280/21 -6°	280/19 -18°	300/34 -31°	300/40 -42°	300/60 -52°
STL	used from 1447 nm out; 24 nm from the line	210/13	260/16 17°	270/21 10°	280/24 5°	310/20 -7°	320/22 -18°	320/44 -33°	320/59 -43°	310/69 -51°
EVV	used from 1547 nm out; 67 nm from the line	310/13	340/26 16°	330/29 10°	330/32 4°	330/30 -9°	340/38 -20°	330/60 -35°	320/57 -41°	330/39 -48°
LOU	used from 1696 nm out; 13 nm from the line	320/15	340/24 14°	330/28 9°	340/34 4°	340/37 -9°	340/42 -20°	320/39 -35°	320/45 -39°	330/40 -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
OAK Oakland, CA	departure	VFR Sky: a few clouds at 2,000 feet, a few clouds at 4,500 feet	from the west-southwest (240°) at 17 knots	10+ mi	none	9 ft	4:53 pm PDT (23:53 UTC)
SCK Stockton, CA	50 nm out, 2 nm west of the line, tower	VFR	calm	10+ mi	none	32 ft	23:55 UTC
HTH Hawthorne, NV	180 nm out, 16 nm northwest of the line	VFR Sky: a few clouds at 11,000 feet	from the north-northwest (340°) at 17 knots, gusting to 22	10+ mi	none	4,230 ft	00:15 UTC
FOM Fillmore, UT	469 nm out, 2 nm southeast of the line	IFR Sky: scattered clouds at 2,200 feet, scattered clouds at 2,900 feet, a broken layer at 3,400 feet Weather: light rain, mist	from the west-southwest (250°) at 9 knots	2.5 mi	3,400 ft	4,984 ft	00:15 UTC
GJT Grand Junction, CO	649 nm out, 7 nm south of the line, tower	VFR	from the south-southeast (160°) at 16 knots, gusting to 24	10+ mi	none	4,861 ft	23:53 UTC
ASE Aspen, CO	728 nm out, 6 nm south of the line, tower	VFR Sky: a few clouds at 9,500 feet	from the north-northwest (330°) at 3 knots	10+ mi	none	7,837 ft	23:53 UTC
GLD Goodland, KS	968 nm out, 2 nm southwest of the line	VFR	from the south (180°) at 12 knots	10+ mi	none	3,657 ft	23:53 UTC
MHK Manhattan, KS	1197 nm out, 7 nm southeast of the line, tower	VFR	from the south (190°) at 9 knots	10+ mi	none	1,066 ft	23:52 UTC
MKC Kansas City, MO	1297 nm out, 0 nm southeast of the line, tower	VFR	from the south (180°) at 10 knots	10+ mi	none	756 ft	23:54 UTC
STL St Louis, MO	1497 nm out, 1 nm west of the line, tower	VFR Sky: a few clouds at 25,000 feet	from the southeast (130°) at 6 knots	10+ mi	none	617 ft	23:51 UTC
EVV Evansville, IN	1636 nm out, 23 nm south of the line, tower	VFR	calm	10+ mi	none	421 ft	23:54 UTC
SDF Louisville, KY	destination	marginal VFR Sky: a broken layer at 3,000 feet	from the west-southwest (250°) at 3 knots	10+ mi	3,000 ft	500 ft	7:56 pm EDT (23:56 UTC)

The highest airport on this list sits at 7,837 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SDF when you get there the forecast at the estimated arrival, 6:45 am EDT (10:45 UTC)

Wind from the south-southeast at 3 knots, visibility 4 miles, mist, clear skies marginal VFR

The whole forecast for SDF

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 5 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Sun 8:30 pm EDT (00:30 UTC): wind from the southwest at 3 knots, visibility more than 6 miles, clear skies
From Mon 6:00 am EDT (10:00 UTC): wind from the south-southeast at 3 knots, visibility 4 miles, mist, clear skies
From Mon 9:00 am EDT (13:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies

The forecast for OAK, the departure

From Sun 5:00 pm PDT (00:00 UTC): wind from the west-southwest at 12 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 Sun 11:00 pm PDT (06:00 UTC): wind from the east-southeast 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 8 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 20 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 24 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
6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 22 nm from the route, 798 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
6/8770 COLORADO SPRINGS, CO, Saturday, October 10, 2026 through Monday, October 12, 2026 UTC 22 nm from the route, 818 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 12 October · ZDV
6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 12 nm from the route, 1407 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC

Daylight

Sunset at OAK 6:35 pm PDT (01:35 UTC), at SDF 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 UTC)). At 120 knots the arrival at SDF is before sunrise there (7:48 am EDT (11:48 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 Pacific Southwest · loop National Weather Service

Radar now, the southern Rockies · loop National Weather Service

Radar now, the southern Plains · 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: Oakland San Francisco Bay Airport, Louisville Muhammad Ali International.