Plan a flight · Mon 6:58 am EDT (10:58 UTC)

Cincinnati Muni/Lunken Field to South Bend International LUK → SBN

179 nautical miles (206 statute miles) northwest on a straight line, true course 332°, about 336° magnetic at the departure end (variation 4W). At 120 knots that is 1 h 40 min at the quickest height in today's winds (10,500 ft, a 13-knot headwind), arriving about 8:38 am EDT (12:38 UTC). Right now LUK is low IFR, wind from the south-southwest (200°) at 3 knots; SBN is VFR, wind from the east-southeast (110°) 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 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 SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 139 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 LUK.

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

B737 at 100 ft, 14 nm west, 6:24 am EDT (10:24 UTC): sky obscured, remarks: runway 36R arrival, bases at clear-air turbulence 3 mins. At the departure end, 14 nm west of the line.
as filed, and in English
```
CVG UA /OV CVG/TM 1024/FL001/TP B737/SK VV001/RM RWY 36R ARRIVAL, BASES AT CAT 3 MINS
```
Report
a routine report filed through CVG
Where
over CVG
Time
10:24 UTC
Height
at 100 ft
Aircraft
B737
Sky
sky obscured from 100 ft
Remarks
runway 36R arrival, bases at clear-air turbulence 3 mins
B739 climbing, 15 nm west, 6:19 am EDT (10:19 UTC): a routine report with nothing remarked on. At the departure end, 15 nm west of the line.
as filed, and in English
```
CVG UA /OV 1 W CVG/TM 1019/FLDURC/TP B739/SK TOPS 011
```
Report
a routine report filed through CVG
Where
1 west cvg
Time
10:19 UTC
Height
during the climb
Aircraft
B739
Sky
tops 1,100 ft
B763 at 100 ft, 15 nm west, 5:05 am EDT (09:05 UTC): sky obscured, remarks: during the climb. At the departure end, 15 nm west of the line.
as filed, and in English
```
CVG UA /OV CVG270001/TM 0905/FL001/TP B763/SK VV001/RM DURC
```
Report
a routine report filed through CVG
Where
1 nm west (270°) of CVG
Time
09:05 UTC
Height
at 100 ft
Aircraft
B763
Sky
sky obscured from 100 ft
Remarks
during the climb
B763 at 200 ft, 15 nm west, 4:05 am EDT (08:05 UTC): sky obscured, remarks: during the climb. At the departure end, 15 nm west of the line.
as filed, and in English
```
CVG UA /OV CVG270001/TM 0805/FL002/TP B763/SK VV002/RM DURC
```
Report
a routine report filed through CVG
Where
1 nm west (270°) of CVG
Time
08:05 UTC
Height
at 200 ft
Aircraft
B763
Sky
sky obscured from 200 ft
Remarks
during the climb
CRJ7 at 3,000 ft, 31 nm northeast, 6:08 am EDT (10:08 UTC): a routine report with nothing remarked on. 40 nm along the route, 31 nm northeast of the line.
as filed, and in English
```
CMH UA /OV DAY/TM 1008/FL030/TP CRJ7/SK TOP015
```
Report
a routine report filed through CMH
Where
over DAY
Time
10:08 UTC
Height
at 3,000 ft
Aircraft
CRJ7
Sky
TOP015
A21N at 33,000 ft, 49 nm northeast, 4:07 am EDT (08:07 UTC): light chop turbulence. 50 nm along the route, 49 nm northeast of the line.
as filed, and in English
```
DAY UA /OV ROD/TM 0807/FL330/TP A21N/TB OCNL LT CHOP
```
Report
a routine report filed through DAY
Where
over ROD
Time
08:07 UTC
Height
at 33,000 ft
Aircraft
A21N
Turbulence
occasional lt chop
CRJ2 at 5,500 ft, 23 nm east, 5:45 am EDT (09:45 UTC): mist. 119 nm along the route, 23 nm east of the line.
as filed, and in English
```
FWA UA /OV FWA/TM 0945/FL055/TP CRJ2/WX MIST
```
Report
a routine report filed through FWA
Where
over FWA
Time
09:45 UTC
Height
at 5,500 ft
Aircraft
CRJ2
Weather
shallow st

Winds aloft along the route, and the time en route the forecast for use 08:00–15:00 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 2 forecast points nearest it (CVG, FWA). 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	290° at 18 kt	+14 kt		106 kt	1 h 41 min	8:39 am EDT (12:39 UTC)
6,500 ft	300° at 17 kt	+15 kt	14 °C	105 kt	1 h 42 min	8:40 am EDT (12:40 UTC)
8,500 ft	300° at 16 kt	+14 kt	11 °C	106 kt	1 h 41 min	8:39 am EDT (12:39 UTC)
10,500 ft	290° at 16 kt	+13 kt	6 °C	107 kt	1 h 40 min	8:38 am EDT (12:38 UTC)
12,500 ft	290° at 17 kt	+13 kt	2 °C	107 kt	1 h 40 min	8:38 am EDT (12:38 UTC)
14,500 ft	290° at 20 kt	+15 kt	-1 °C	105 kt	1 h 42 min	8:40 am EDT (12:40 UTC)
16,500 ft	290° at 23 kt	+18 kt	-4 °C	102 kt	1 h 45 min	8:43 am EDT (12:43 UTC)
18,000 ft FL180	290° at 25 kt	+20 kt	-7 °C	100 kt	1 h 47 min	8:45 am EDT (12:45 UTC)
24,000 ft FL240	280° at 32 kt	+21 kt	-19 °C	99 kt	1 h 48 min	8:46 am EDT (12:46 UTC)
30,000 ft FL300	290° at 33 kt	+24 kt	-35 °C	96 kt	1 h 52 min	8:50 am EDT (12:50 UTC)
34,000 ft FL340	300° at 49 kt	+40 kt	-44 °C	80 kt	2 h 14 min	9:12 am EDT (13:12 UTC)
39,000 ft FL390	300° at 63 kt	+55 kt	-52 °C	65 kt	2 h 45 min	9:43 am EDT (13:43 UTC)

Based on data from the 12th at 06:00 UTC; valid on the 12th at 12:00 UTC for use 08:00 to 15:00 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
CVG	used from 0 nm out; 25 nm from the line	300/19	310/23 15°	320/20 9°	310/18 3°	300/26 -6°	290/36 -19°	310/32 -34°	310/53 -43°	310/61 -51°
FWA	used from 50 nm out; 47 nm from the line	270/20	300/16 15°	290/14 10°	280/17 3°	290/25 -7°	280/30 -19°	280/34 -35°	290/48 -44°	300/64 -52°

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
LUK Cincinnati, OH	departure	low IFR Sky: sky obscured at 300 feet Weather: fog	from the south-southwest (200°) at 3 knots	0.25 mi	300 ft	481 ft	6:53 am EDT (10:53 UTC)
OXD Oxford, OH	30 nm out, 4 nm southwest of the line	low IFR Sky: overcast at 100 feet Weather: fog	calm	0.5 mi	100 ft	1,040 ft	10:55 UTC
MIE Muncie, IN	80 nm out, 7 nm west of the line, tower	VFR	from the south-southwest (200°) at 3 knots	10+ mi	none	937 ft	10:53 UTC
FWA Fort Wayne, IN	119 nm out, 23 nm east of the line, tower	IFR Sky: scattered clouds at 30,000 feet Weather: mist, shallow fog	from the south (180°) at 4 knots	2 mi	none	814 ft	10:54 UTC
ASW Warsaw, IN	149 nm out, 7 nm east of the line	VFR	calm	7 mi	none	849 ft	10:35 UTC
SBN South Bend, IN	destination	VFR	from the east-southeast (110°) at 3 knots	9 mi	none	798 ft	6:54 am EDT (10:54 UTC)

The highest airport on this list sits at 1,040 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At SBN when you get there the forecast at the estimated arrival, 8:38 am EDT (12:38 UTC)

Wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet VFR

The whole forecast for SBN

From Mon 2:00 am EDT (06:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
At times between Mon 2:00 am EDT (06:00 UTC) and 5:00 am EDT (09:00 UTC): visibility 2 miles, mist
From Mon 6:00 am EDT (10:00 UTC): wind from the south at 8 knots, visibility more than 6 miles, scattered clouds at 25,000 feet
From Mon 2:00 pm EDT (18:00 UTC): wind from the south-southwest at 12 knots, gusting to 20, 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 9 knots, visibility more than 6 miles, scattered clouds at 10,000 feet

The forecast for LUK, the departure

From Mon 2:00 am EDT (06:00 UTC): wind calm, visibility ¼ mile, fog, sky obscured at 200 feet
From Mon 8:00 am EDT (12:00 UTC): wind calm, visibility 3 miles, mist, scattered clouds at 200 feet
At times between Mon 8:00 am EDT (12:00 UTC) and 9:00 am EDT (13:00 UTC): visibility 2 miles, mist
From Mon 10:00 am EDT (14:00 UTC): wind from the south-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

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

6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local 7 nm from the route, at the departure end · a VIP movement · until 12 October · ZID

Daylight

Sunset at LUK 7:03 pm EDT (23:03 UTC), at SBN 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 central Great Lakes · 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: Cincinnati Muni/Lunken Field, South Bend International.