Plan a flight · Sun 11:44 pm PDT (06:44 UTC)

Ontario International to Cincinnati/Northern Kentucky International ONT → CVG

1,607 nautical miles (1,850 statute miles) east on a straight line, true course 070°, about 058° magnetic at the departure end (variation 12E). At 120 knots that is 8 h 50 min at the quickest height in today's winds (34,000 ft, a 62-knot tailwind), arriving about 11:34 am EDT (15:34 UTC). Right now ONT is marginal VFR, wind variable at 4 knots; CVG is VFR, wind calm. 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: 904 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 C10C: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 12:55 am PDT (07:55 UTC). Over the route from 569 to 669 nm out.

as issued

WSUS32 KKCI 120555
MKCC WST 120555
CONVECTIVE SIGMET 10C
VALID UNTIL 0755Z
CO NM
FROM 20NNE PUB-40WSW LAA-30WSW CIM-50WSW ALS-50ESE HBU-20NNE 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 120 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 80 to 699 nm out.
AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 180 to 389 nm out.
AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the route from 210 to 729 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 270 to 309 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). Near the route, 649 nm along the route.
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 719 to 1238 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 130 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 ONT.

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

B38M at 3,000 ft, 5 nm east, 10:47 pm PDT (05:47 UTC): a broken layer from 2,900 ft to 8,000 ft, remarks: BASE030. At the departure end, 5 nm east of the line.
as filed, and in English
```
ONT UA /OV KONT080005/TM 0547/FL030/TP B38M/SK BKN029-TOP080/RM BASE030
```
Report
a routine report filed through ONT
Where
5 nm east (080°) of KONT
Time
05:47 UTC
Height
at 3,000 ft
Aircraft
B38M
Sky
a broken layer from 2,900 ft, tops 8,000 ft
Remarks
BASE030
GLF5 at 3,500 ft, 45 nm west, 9:54 pm PDT (04:54 UTC): overcast above 3,600 ft. At the departure end, 45 nm west of the line.
as filed, and in English
```
VNY UA /OV VNY36006/TM 0454/FL035/TP GLF5/SK OVC036
```
Report
a routine report filed through VNY
Where
VNY36006
Time
04:54 UTC
Height
at 3,500 ft
Aircraft
GLF5
Sky
overcast from 3,600 ft
A321 at 3,300 ft, 4 nm south, 9:59 pm PDT (04:59 UTC): a broken layer above 3,300 ft, remarks: during the descent. At the departure end, 4 nm south 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, 4 nm southeast, 9:15 pm PDT (04:15 UTC): a broken layer above 4,500 ft, remarks: during the descent. At the departure end, 4 nm southeast 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

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 16 forecast points nearest it (ONT, BLH, LAS, PRC, FMN, ALS, PUB, GCK, SLN, MKC, COU, STL, SPI, EVV, IND, CVG). 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	230° at 24 kt	−21 kt		141 kt	11 h 24 min	2:08 pm EDT (18:08 UTC)
5,500 ft	230° at 26 kt	−24 kt	19 °C	144 kt	11 h 10 min	1:54 pm EDT (17:54 UTC)
7,500 ft	230° at 24 kt	−22 kt	12 °C	142 kt	11 h 19 min	2:03 pm EDT (18:03 UTC)
9,500 ft	240° at 21 kt	−21 kt	9 °C	141 kt	11 h 24 min	2:08 pm EDT (18:08 UTC)
11,500 ft	230° at 22 kt	−21 kt	5 °C	141 kt	11 h 24 min	2:08 pm EDT (18:08 UTC)
13,500 ft	230° at 25 kt	−24 kt	1 °C	144 kt	11 h 10 min	1:54 pm EDT (17:54 UTC)
15,500 ft	230° at 29 kt	−27 kt	-3 °C	147 kt	10 h 56 min	1:40 pm EDT (17:40 UTC)
17,500 ft	230° at 33 kt	−31 kt	-7 °C	151 kt	10 h 39 min	1:23 pm EDT (17:23 UTC)
18,000 ft FL180	230° at 34 kt	−32 kt	-8 °C	152 kt	10 h 34 min	1:18 pm EDT (17:18 UTC)
24,000 ft FL240	240° at 39 kt	−38 kt	-20 °C	158 kt	10 h 10 min	12:54 pm EDT (16:54 UTC)
30,000 ft FL300	240° at 54 kt	−54 kt	-30 °C	174 kt	9 h 14 min	11:58 am EDT (15:58 UTC)
34,000 ft FL340	250° at 60 kt	−62 kt	-37 °C	182 kt	8 h 50 min	11:34 am EDT (15:34 UTC)
39,000 ft FL390	250° at 52 kt	−54 kt	-47 °C	174 kt	9 h 14 min	11:58 am EDT (15:58 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; 25 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 100 nm out; 73 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°
LAS	used from 150 nm out; 77 nm from the line		210/21 10°	200/18 5°	200/23 -2°	210/49 -14°	210/63 -21°	220/58 -30°	220/61 -35°	210/56 -44°
PRC	used from 200 nm out; 58 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; 112 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 549 nm out; 41 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 649 nm out; 62 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°
GCK	used from 749 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°
SLN	used from 948 nm out; 43 nm from the line	210/53	230/41 20°	240/26 14°	230/16 8°	240/25 -7°	240/35 -19°	250/61 -30°	260/65 -38°	260/56 -49°
MKC	used from 1098 nm out; 40 nm from the line	220/44	250/28 18°	250/18 13°	240/12 6°	280/24 -6°	240/34 -18°	260/47 -30°	260/51 -40°	270/58 -50°
COU	used from 1198 nm out; 32 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 1298 nm out; 19 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°
SPI	used from 1398 nm out; 72 nm from the line	220/21	250/23 16°	260/27 9°	270/14 6°	270/23 -7°	270/31 -19°	270/28 -33°	290/48 -42°	300/55 -52°
EVV	used from 1448 nm out; 57 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°
IND	used from 1498 nm out; 43 nm from the line	290/16	310/20 16°	320/21 10°	330/13 3°	300/25 -7°	320/32 -19°	330/46 -34°	320/61 -43°	320/63 -50°
CVG	used from 1547 nm out; 35 nm from the line	320/18	350/32 16°	350/35 10°	350/30 3°	330/30 -7°	340/44 -20°	340/58 -35°	330/72 -41°	320/36 -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	Wind	Visibility	Ceiling	Elevation	Reported
ONT Ontario, CA	departure	marginal VFR Sky: a broken layer at 2,900 feet, a broken layer at 4,000 feet, overcast at 5,000 feet Weather: light rain, mist	variable at 4 knots	6 mi	2,900 ft	944 ft	10:53 pm PDT (05:53 UTC)
SBD San Bernardino, CA	20 nm out, 5 nm south of the line, tower	VFR Sky: scattered clouds at 3,200 feet, overcast at 3,900 feet	calm	10+ mi	3,900 ft	1,159 ft	06:41 UTC
GCN Grand Canyon, AZ	290 nm out, 21 nm north of the line, tower	VFR Sky: scattered clouds at 600 feet, a broken layer at 3,800 feet, overcast at 4,700 feet	from the south-southwest (200°) at 9 knots	10+ mi	3,800 ft	6,608 ft	06:05 UTC
FMN Farmington, NM	489 nm out, 14 nm northwest of the line, tower	VFR	from the southwest (230°) at 5 knots	10+ mi	none	5,506 ft	05:53 UTC
TAD Trinidad, CO	679 nm out, 5 nm west of the line	VFR	from the west-southwest (240°) at 18 knots, gusting to 26	10+ mi	none	5,761 ft	05:54 UTC
GCK Garden City, KS	849 nm out, 5 nm north of the line, tower	VFR	from the south-southwest (200°) at 19 knots	10+ mi	none	2,890 ft	05:54 UTC
HUT Hutchinson, KS	988 nm out, 10 nm south of the line, tower	VFR	from the south (180°) at 16 knots, gusting to 22	10+ mi	none	1,542 ft	05:52 UTC
COU Columbia, MO	1258 nm out, 5 nm northwest of the line, tower	VFR	from the south-southwest (200°) at 7 knots	10+ mi	none	889 ft	05:54 UTC
ALN Alton/St Louis, IL	1358 nm out, 2 nm west of the line, tower	VFR	from the south-southwest (200°) at 5 knots	10+ mi	none	543 ft	06:35 UTC
BMG Bloomington, IN	1518 nm out, 7 nm north of the line, tower	low IFR Sky: sky obscured at 100 feet Weather: mist	calm	1 mi	100 ft	845 ft	06:39 UTC
CVG Covington, KY	destination	VFR Sky: a few clouds at 200 feet Weather: mist	calm	6 mi	none	896 ft	2:30 am EDT (06:30 UTC)

The highest airport on this list sits at 6,608 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At CVG when you get there the forecast at the estimated arrival, 11:34 am EDT (15:34 UTC)

Wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for CVG

From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility 3 miles, mist, clear skies
From Mon 4:00 am EDT (08:00 UTC): wind light and variable, visibility 1 mile, mist, scattered clouds at 200 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ½ mile, fog, sky obscured at 200 feet
From Mon 10:00 am EDT (14:00 UTC): wind from the southwest at 9 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 8:00 pm EDT (00:00 UTC): wind from the south-southwest at 7 knots, visibility more than 6 miles, scattered clouds at 25,000 feet

The forecast for ONT, the departure

From Sun 11:00 pm PDT (06:00 UTC): wind from the west-southwest at 6 knots, visibility more than 6 miles, showers nearby, scattered clouds at 2,500 feet, a broken layer at 5,000 feet
From Mon 2:00 am PDT (09:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, showers nearby, a broken layer at 2,500 feet, a broken layer at 5,000 feet
From Mon 11:00 am PDT (18:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 2:00 pm PDT (21:00 UTC): wind from the west-southwest at 11 knots, gusting to 18, visibility more than 6 miles, a broken layer at 5,000 feet
From Mon 8:00 pm PDT (03:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, a broken layer at 6,000 feet

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

4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the departure end · security · ZLA
6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 3 nm from the route, 160 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 21 nm from the route, 1258 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC
6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local on the route, at the destination end · a VIP movement · until 12 October · ZID

Daylight

Sunset at ONT 6:20 pm PDT (01:20 UTC), at CVG 7:04 pm EDT (23:04 UTC) (civil twilight ends 7:31 pm EDT (23:31 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: Ontario International, Cincinnati/Northern Kentucky International.