Plan a flight · Sun 10:52 pm PDT (05:52 UTC)

March Arb Airport to Louisville Muhammad Ali International RIV → SDF

1,545 nautical miles (1,777 statute miles) east on a straight line, true course 071°, about 057° magnetic at the departure end (variation 14E). At 120 knots that is 8 h 27 min at the quickest height in today's winds (34,000 ft, a 63-knot tailwind), arriving about 10:19 am EDT (14:19 UTC). 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

SIGMET 7C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 11:55 pm PDT (06:55 UTC). Over the route from 528 to 727 nm out.

as issued

WSUS32 KKCI 120455
MKCC WST 120455
CONVECTIVE SIGMET 7C
VALID UNTIL 0655Z
TX OK CO NM
FROM 40NNW PUB-70WSW LBL-40NE CME-40ESE RSK-30ENE HBU-40NNW PUB
AREA TS MOV FROM 22040KT. TOPS TO FL340.

AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the first 100 nm of the route.
AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Over the route from 40 to 668 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 169 to 349 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 209 to 707 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 259 to 299 nm out.
AIRMET TANGO 3W: 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 698 to 1196 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 last 90 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 RIV.

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

E75L climbing, 3 nm east, 8:22 pm PDT (03:22 UTC): moderate chop turbulence. At the departure end, 3 nm east of the line.
as filed, and in English
```
PSP UA /OV PSP345013/TM 0322/FLDURC/TP E75L/TB MOD CHOP/LT TURBU SFC-60
```
Report
a routine report filed through PSP
Where
13 nm north (345°) of PSP
Time
03:22 UTC
Height
during the climb
Aircraft
E75L
Turbulence
moderate chop/lt turbu SFC-60
A321 at 3,300 ft, 14 nm northwest, 9:59 pm PDT (04:59 UTC): a broken layer above 3,300 ft, remarks: during the descent. At the departure end, 14 nm northwest of the line.
as filed, and in English
```
ONT UA /OV ONT078008/TM 0459/FL033/TP A321/SK BKN033-TOPUNKN/RM DURD
```
Report
a routine report filed through ONT
Where
8 nm east (078°) of ONT
Time
04:59 UTC
Height
at 3,300 ft
Aircraft
A321
Sky
a broken layer from 3,300 ft, tops unknown
Remarks
during the descent
B38M at 4,500 ft, 12 nm northwest, 9:15 pm PDT (04:15 UTC): a broken layer above 4,500 ft, remarks: during the descent. At the departure end, 12 nm northwest of the line.
as filed, and in English
```
ONT UA /OV ONT078012/TM 0415/FL045/TP B38M/SK BKN045-TOPUNKN/RM DURD
```
Report
a routine report filed through ONT
Where
12 nm east (078°) of ONT
Time
04:15 UTC
Height
at 4,500 ft
Aircraft
B38M
Sky
a broken layer from 4,500 ft, tops unknown
Remarks
during the descent
E75L at 3,600 ft, 49 nm west, 8:30 pm PDT (03:30 UTC): overcast above 6,600 ft, remarks: bases 3,600 ft. At the departure end, 49 nm west of the line.
as filed, and in English
```
KLAX UA /OV 10 E LAX/TM 0330/FL036/TP E75L/SK OVC066/RM BASES 036
```
Report
a routine report filed through KLAX
Where
10 east lax
Time
03:30 UTC
Height
at 3,600 ft
Aircraft
E75L
Sky
overcast from 6,600 ft
Remarks
bases 3,600 ft
B737 at 3,500 ft, 45 nm west, 8:25 pm PDT (03:25 UTC): a broken layer above 3,500 ft. At the departure end, 45 nm west of the line.
as filed, and in English
```
LGB UA /OV LGB/TM 0325/FL035/TP B737/SK BKN035
```
Report
a routine report filed through LGB
Where
over LGB
Time
03:25 UTC
Height
at 3,500 ft
Aircraft
B737
Sky
a broken layer from 3,500 ft
A20N climbing, 16 nm west, 8:04 pm PDT (03:04 UTC): a routine report with nothing remarked on. At the departure end, 16 nm west of the line.
as filed, and in English
```
ONT UA /OV ONT153007/TM 0304/FLDURC/TP A20N/SK B-036 -T047
```
Report
a routine report filed through ONT
Where
7 nm southeast (153°) of ONT
Time
03:04 UTC
Height
during the climb
Aircraft
A20N
Sky
B-036 T047
A20N climbing, 20 nm northwest, 8:03 pm PDT (03:03 UTC): a routine report with nothing remarked on. At the departure end, 20 nm northwest of the line.
as filed, and in English
```
ONT UA /OV ONT204003/TM 0303/FLDURC/TP A20N/SK B-030
```
Report
a routine report filed through ONT
Where
3 nm southwest (204°) of ONT
Time
03:03 UTC
Height
during the climb
Aircraft
A20N
Sky
B-030
B737 climbing, 36 nm northwest, 8:01 pm PDT (03:01 UTC): a routine report with nothing remarked on. At the departure end, 36 nm northwest of the line.
as filed, and in English
```
ONT UA /OV ONT278016/TM 0301/FLDURC/TP B737/SK B-047 -T080
```
Report
a routine report filed through ONT
Where
16 nm west (278°) of ONT
Time
03:01 UTC
Height
during the climb
Aircraft
B737
Sky
B-047 T080

Winds aloft along the route, and the time en route the forecast for use 02:00–09:00 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 15 forecast points nearest it (ONT, BLH, PRC, FMN, ALS, PUB, TCC, GCK, ICT, SGF, COU, STL, CGI, 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
3,500 ft	220° at 24 kt	−19 kt		139 kt	11 h 07 min	12:59 pm EDT (16:59 UTC)
5,500 ft	230° at 27 kt	−23 kt	21 °C	143 kt	10 h 48 min	12:40 pm EDT (16:40 UTC)
7,500 ft	230° at 24 kt	−21 kt	12 °C	141 kt	10 h 57 min	12:49 pm EDT (16:49 UTC)
9,500 ft	230° at 21 kt	−20 kt	9 °C	140 kt	11 h 02 min	12:54 pm EDT (16:54 UTC)
11,500 ft	230° at 22 kt	−21 kt	5 °C	141 kt	10 h 57 min	12:49 pm EDT (16:49 UTC)
13,500 ft	230° at 25 kt	−24 kt	1 °C	144 kt	10 h 44 min	12:36 pm EDT (16:36 UTC)
15,500 ft	230° at 29 kt	−27 kt	-3 °C	147 kt	10 h 31 min	12:23 pm EDT (16:23 UTC)
17,500 ft	230° at 33 kt	−30 kt	-7 °C	150 kt	10 h 18 min	12:10 pm EDT (16:10 UTC)
18,000 ft FL180	230° at 34 kt	−31 kt	-8 °C	151 kt	10 h 14 min	12:06 pm EDT (16:06 UTC)
24,000 ft FL240	240° at 39 kt	−37 kt	-20 °C	157 kt	9 h 50 min	11:42 am EDT (15:42 UTC)
30,000 ft FL300	240° at 56 kt	−56 kt	-29 °C	176 kt	8 h 47 min	10:39 am EDT (14:39 UTC)
34,000 ft FL340	250° at 62 kt	−63 kt	-37 °C	183 kt	8 h 27 min	10:19 am EDT (14:19 UTC)
39,000 ft FL390	250° at 51 kt	−54 kt	-48 °C	174 kt	8 h 53 min	10:45 am EDT (14:45 UTC)

Based on data from the 12th at 00:00 UTC; valid on the 12th at 06:00 UTC for use 02:00 to 09:00 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
ONT	used from 0 nm out; 41 nm from the line	190/8	190/19 6°	210/23 4°	210/29 -3°	210/47 -13°	210/49 -19°	220/47 -30°	220/50 -36°	220/55 -43°
BLH	used from 50 nm out; 68 nm from the line	210/13	200/21 11°	200/22 5°	210/25 -1°	210/51 -10°	220/61 -20°	220/81 -29°	220/92 -34°	220/79 -45°
PRC	used from 149 nm out; 74 nm from the line			210/25 5°	200/30 1°	220/55 -10°	220/61 -21°	220/84 -28°	230/90 -34°	230/73 -45°
FMN	used from 349 nm out; 107 nm from the line			220/28 9°	220/40 2°	220/53 -10°	220/62 -22°	230/79 -28°	240/91 -34°	230/71 -45°
ALS	used from 548 nm out; 60 nm from the line				230/37 4°	220/54 -9°	230/62 -22°	240/77 -26°	240/74 -33°	230/59 -45°
PUB	used from 648 nm out; 94 nm from the line			230/25 13°	230/32 6°	220/44 -8°	230/49 -21°	240/70 -28°	240/67 -34°	240/58 -46°
TCC	used from 698 nm out; 109 nm from the line		210/42	230/33 14°	230/32 6°	220/35 -6°	230/49 -19°	240/72 -27°	250/62 -36°	250/52 -48°
GCK	used from 747 nm out; 77 nm from the line		220/48 21°	230/37 14°	250/30 8°	230/37 -6°	240/37 -20°	240/69 -28°	250/67 -37°	260/58 -48°
ICT	used from 897 nm out; 68 nm from the line	200/48	230/39 19°	240/24 14°	240/20 8°	240/22 -6°	250/31 -18°	250/61 -29°	260/58 -38°	270/54 -49°
SGF	used from 1096 nm out; 71 nm from the line	230/33	230/28 15°	250/20 13°	240/18 7°	250/20 -6°	250/24 -17°	280/42 -31°	280/49 -40°	290/46 -51°
COU	used from 1196 nm out; 53 nm from the line	230/31	230/30 15°	260/16 11°	270/14 6°	260/24 -6°	270/27 -18°	270/37 -32°	280/49 -41°	290/56 -51°
STL	used from 1295 nm out; 40 nm from the line	250/24	250/24 16°	260/23 9°	270/16 6°	260/25 -6°	270/29 -19°	290/34 -33°	290/48 -41°	290/54 -51°
CGI	used from 1345 nm out; 54 nm from the line	240/20	270/15 15°	280/15 11°	300/13 6°	290/20 -6°	280/24 -18°	300/34 -32°	300/47 -41°	310/49 -51°
EVV	used from 1395 nm out; 41 nm from the line	280/15	290/12 17°	310/16 10°	320/13 5°	310/22 -6°	320/26 -18°	320/38 -33°	310/56 -41°	320/55 -51°
LOU	used from 1495 nm out; 29 nm from the line	310/18	340/28 16°	340/29 10°	350/27 3°	330/27 -7°	340/39 -19°	330/58 -33°	330/67 -41°	330/40 -49°

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	Elevation
RIV Riverside, CA	departure	no report just now	1,536 ft
PSP Palm Springs, CA	30 nm out, 16 nm southeast of the line, tower	no report just now	476 ft
FLG Flagstaff, AZ	289 nm out, 10 nm south of the line, tower	no report just now	7,014 ft
RQE Window Rock, AZ	419 nm out, 12 nm south of the line	no report just now	6,742 ft
SKX Taos, NM	588 nm out, 3 nm southeast of the line	no report just now	7,094 ft
RTN Raton, NM	648 nm out, 3 nm north of the line	no report just now	6,352 ft
MEJ Meade, KS	847 nm out, 2 nm east of the line	no report just now	2,527 ft
ICT Wichita, KS	987 nm out, 4 nm northeast of the line, tower	no report just now	1,332 ft
OZS Camdenton, MO	1216 nm out, 0 nm south of the line	no report just now	1,061 ft
TBN Fort Leonard Wood, MO	1246 nm out, 17 nm south of the line, tower	no report just now	1,159 ft
EVV Evansville, IN	1455 nm out, 9 nm southeast of the line, tower	no report just now	421 ft
SDF Louisville, KY	destination	no report just now	500 ft

The highest airport on this list sits at 7,094 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, 10:19 am EDT (14:19 UTC)

SDF has no terminal forecast; use the nearest airport that does.

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

6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 21 nm from the route, 149 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA

Daylight

Sunset at RIV 6:18 pm PDT (01:18 UTC), at SDF 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 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: March Arb Airport, Louisville Muhammad Ali International.