Plan a flight · Sun 10:08 pm EDT (02:08 UTC)

South Bend International to MC Ghee Tyson Airport SBN → TYS

370 nautical miles (426 statute miles) south on a straight line, true course 162°, about 167° magnetic at the departure end (variation 5W). At 120 knots that is 2 h 21 min at the quickest height in today's winds (24,000 ft, a 37-knot tailwind), arriving about 12:29 am EDT (04:29 UTC), after sunset at the destination. Right now SBN is VFR, wind calm; TYS is marginal VFR, wind from the west-southwest (250°) at 12 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: 27 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 route from 253 to 351 nm out.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 78 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 SBN.

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

B38M at 31,000 ft, 47 nm northeast, 8:04 pm EDT (00:04 UTC): light chop turbulence up to 31,000 ft. At the departure end, 47 nm northeast of the line.
as filed, and in English
```
AZO UA /OV AZO/TM 0004/FL310/TP B38M/TB CONS LGT CHOP 310 BLO
```
Report
a routine report filed through AZO
Where
over AZO
Time
00:04 UTC
Height
at 31,000 ft
Aircraft
B38M
Turbulence
continuous light chop at 31,000 ft below
CRJ7 at 17,000 ft, 41 nm northwest, 8:04 pm EDT (00:04 UTC): no turbulence. At the departure end, 41 nm northwest of the line.
as filed, and in English
```
BEH UA /OV ELX270040/TM 0004/FL170/TP CRJ7/TB NEG
```
Report
a routine report filed through BEH
Where
40 nm west (270°) of ELX
Time
00:04 UTC
Height
at 17,000 ft
Aircraft
CRJ7
Turbulence
none
E170 at 23,000 ft, 46 nm west, 7:14 pm EDT (23:14 UTC): light turbulence. 88 nm along the route, 46 nm west of the line.
as filed, and in English
```
IND UA /OV VHP315020/TM 2314/FL230/TP E170/TB LGT
```
Report
a routine report filed through IND
Where
20 nm northwest (315°) of VHP
Time
23:14 UTC
Height
at 23,000 ft
Aircraft
E170
Turbulence
light
A21N at 17,000 ft, 48 nm west, 9:28 pm EDT (01:28 UTC): no icing, clear from 17,000 ft to 60,000 ft, remarks: clear since departing KIND southbound. 156 nm along the route, 48 nm west of the line.
as filed, and in English
```
IND UA /OV IND183045/TM 0128/FL170/TP A21N/SK SKC/IC NEG/RM CLR SINCE DEPARTING KIND SOUTHBOUND
```
Report
a routine report filed through IND
Where
45 nm south (183°) of IND
Time
01:28 UTC
Height
at 17,000 ft
Aircraft
A21N
Sky
clear
Icing
none
Remarks
clear since departing KIND southbound
B744 climbing, 25 nm east, 8:02 pm EDT (00:02 UTC): light turbulence, overcast. 166 nm along the route, 25 nm east of the line.
as filed, and in English
```
CVG UA /OV 10 N CVG/TM 0002/FLDURC/TP B744/SK B022 OVC T036/TB LT TB SFC-036
```
Report
a routine report filed through CVG
Where
10 north cvg
Time
00:02 UTC
Height
during the climb
Aircraft
B744
Sky
B022 overcast T036
Turbulence
lt turbulence from the surface to 3,600 ft
B737 at 23,000 ft, 22 nm east, 7:51 pm EDT (23:51 UTC): light turbulence. 175 nm along the route, 22 nm east of the line.
as filed, and in English
```
IND UA /OV CVG/TM 2351/FL230/TP B737/TB LGT
```
Report
a routine report filed through IND
Where
over CVG
Time
23:51 UTC
Height
at 23,000 ft
Aircraft
B737
Turbulence
light
B739 climbing, 18 nm east, 7:31 pm EDT (23:31 UTC): overcast. 175 nm along the route, 18 nm east of the line.
as filed, and in English
```
CVG UA /OV 5 W CVG/TM 2331/FLDURC/TP B739/SK B026 OVC T036
```
Report
a routine report filed through CVG
Where
5 west cvg
Time
23:31 UTC
Height
during the climb
Aircraft
B739
Sky
B026 overcast T036
B38M at 21,000 ft, 33 nm west, 9:09 pm EDT (01:09 UTC): no turbulence, no icing. 214 nm along the route, 33 nm west of the line.
as filed, and in English
```
SDF UA /OV IIU/TM 0109/FL210/TP B38M/TB NEG/IC NEG
```
Report
a routine report filed through SDF
Where
over IIU
Time
01:09 UTC
Height
at 21,000 ft
Aircraft
B38M
Turbulence
none
Icing
none
B712 at 600 ft, 10 nm east, 9:06 pm EDT (01:06 UTC): overcast. 234 nm along the route, 10 nm east of the line.
as filed, and in English
```
LEX UA /OV KLEX/TM 0106/FL006/TP B712/SK OVC B006
```
Report
a routine report filed through LEX
Where
over KLEX
Time
01:06 UTC
Height
at 600 ft
Aircraft
B712
Sky
overcast B006
CRJ9 descending, 10 nm east, 7:43 pm EDT (23:43 UTC): overcast up to 6,200 ft; overcast above 1,800 ft. 234 nm along the route, 10 nm east of the line.
as filed, and in English
```
LEX UA /OV LEX/TM 2343/FLDURD/TP CRJ9/SK TOPS OVC062 BASES OVC018
```
Report
a routine report filed through LEX
Where
over LEX
Time
23:43 UTC
Height
during the descent
Aircraft
CRJ9
Sky
tops OVC062 bases OVC018
B737 at 35,000 ft, 35 nm east, 9:25 pm EDT (01:25 UTC): light chop turbulence. 292 nm along the route, 35 nm east of the line.
as filed, and in English
```
LOZ UA /OV AZQ250025/TM 0125/FL350/TP B737/TB CONS LGT CHOP OCNL MOD CHOP
```
Report
a routine report filed through LOZ
Where
25 nm west (250°) of AZQ
Time
01:25 UTC
Height
at 35,000 ft
Aircraft
B737
Turbulence
continuous light chop occasional moderate chop
A320 descending, 4 nm northeast, 9:52 pm EDT (01:52 UTC): remarks: base 2,100 ft. At the destination end, 4 nm northeast of the line.
as filed, and in English
```
TYS UA /OV 4 NE TYS/TM 0152/FLDURD/TP A320/RM BASE 021
```
Report
a routine report filed through TYS
Where
4 northeast tys
Time
01:52 UTC
Height
during the descent
Aircraft
A320
Remarks
base 2,100 ft

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 5 forecast points nearest it (FWA, IND, CVG, LOU, TYS). 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	330° at 14 kt	−13 kt		133 kt	2 h 47 min	12:55 am EDT (04:55 UTC)
5,500 ft	340° at 21 kt	−21 kt		141 kt	2 h 37 min	12:45 am EDT (04:45 UTC)
7,500 ft	340° at 24 kt	−24 kt	11 °C	144 kt	2 h 34 min	12:42 am EDT (04:42 UTC)
9,500 ft	340° at 27 kt	−27 kt	8 °C	147 kt	2 h 31 min	12:39 am EDT (04:39 UTC)
11,500 ft	340° at 30 kt	−30 kt	5 °C	150 kt	2 h 28 min	12:36 am EDT (04:36 UTC)
13,500 ft	340° at 32 kt	−31 kt	0 °C	151 kt	2 h 27 min	12:35 am EDT (04:35 UTC)
15,500 ft	340° at 32 kt	−32 kt	-4 °C	152 kt	2 h 26 min	12:34 am EDT (04:34 UTC)
17,500 ft	340° at 33 kt	−33 kt	-8 °C	153 kt	2 h 25 min	12:33 am EDT (04:33 UTC)
18,000 ft FL180	340° at 33 kt	−33 kt	-9 °C	153 kt	2 h 25 min	12:33 am EDT (04:33 UTC)
24,000 ft FL240	330° at 38 kt	−37 kt	-20 °C	157 kt	2 h 21 min	12:29 am EDT (04:29 UTC)
30,000 ft FL300	320° at 39 kt	−37 kt	-36 °C	157 kt	2 h 21 min	12:29 am EDT (04:29 UTC)
34,000 ft FL340	310° at 38 kt	−33 kt	-40 °C	153 kt	2 h 25 min	12:33 am EDT (04:33 UTC)
39,000 ft FL390	310° at 38 kt	−33 kt	-47 °C	153 kt	2 h 25 min	12:33 am EDT (04:33 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
FWA	used from 0 nm out; 48 nm from the line	350/9	350/24 15°	360/25 9°	360/29 4°	350/31 -10°	340/39 -22°	330/40 -37°	320/38 -43°	320/48 -48°
IND	used from 97 nm out; 36 nm from the line	320/10	350/30 16°	350/32 10°	350/30 4°	340/31 -10°	340/42 -21°	340/49 -37°	320/46 -41°	320/47 -47°
CVG	used from 146 nm out; 25 nm from the line	350/13	340/20 13°	340/22 8°	350/30 3°	340/30 -9°	340/38 -21°	330/37 -35°	320/38 -40°	310/35 -47°
LOU	used from 195 nm out; 36 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°
TYS	used from 292 nm out; 54 nm from the line	290/19	310/22 11°	330/25 7°	330/34 3°	320/37 -7°	300/37 -18°	300/37 -34°	280/29 -39°	270/29 -48°

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
SBN South Bend, IN	departure	VFR	calm	8 mi	none	798 ft	9:54 pm EDT (01:54 UTC)
RCR Rochester, IN	39 nm out, 6 nm west of the line	VFR	calm	10+ mi	none	789 ft	01:55 UTC
GUS Peru, IN	58 nm out, 13 nm southwest of the line, tower	VFR	from the southeast (140°) at 5 knots	10+ mi	none	810 ft	01:55 UTC
AID Anderson, IN	97 nm out, 4 nm southeast of the line, tower	VFR	calm	10+ mi	none	919 ft	23:35 UTC
HLB Batesville, IN	146 nm out, 5 nm southeast of the line	marginal VFR Sky: a broken layer at 2,900 feet Weather: mist	calm	3 mi	2,900 ft	975 ft	01:55 UTC
CVG Covington, KY	175 nm out, 25 nm east of the line, tower	VFR Sky: a few clouds at 1,800 feet	calm	10+ mi	none	896 ft	01:52 UTC
LEX Lexington, KY	234 nm out, 10 nm east of the line, tower	marginal VFR Sky: a few clouds at 800 feet, overcast at 1,800 feet Weather: mist	from the west (270°) at 4 knots	5 mi	1,800 ft	979 ft	01:54 UTC
DVK Danville, KY	253 nm out, 7 nm southwest of the line	marginal VFR Sky: scattered clouds at 800 feet, overcast at 1,400 feet	from the northwest (310°) at 3 knots	10+ mi	1,400 ft	1,021 ft	01:55 UTC
BYL Williamsburg, KY	312 nm out, 7 nm northeast of the line	low IFR Sky: sky obscured at 700 feet Weather: fog	variable at 3 knots	0.5 mi	700 ft	1,177 ft	23:35 UTC
JAU Jacksboro, TN	341 nm out, 3 nm north of the line	VFR Sky: a few clouds at 1,300 feet, a few clouds at 1,800 feet, overcast at 3,700 feet	variable at 4 knots, gusting to 10	10+ mi	3,700 ft	1,179 ft	01:50 UTC
TYS Knoxville, TN	destination	marginal VFR Sky: a broken layer at 1,300 feet, overcast at 2,700 feet	from the west-southwest (250°) at 12 knots	10+ mi	1,300 ft	986 ft	9:53 pm EDT (01:53 UTC)

The highest airport on this list sits at 1,179 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At TYS when you get there the forecast at the estimated arrival, 12:29 am EDT (04:29 UTC)

Wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 1,000 feet, a broken layer at 1,500 feet marginal VFR

The whole forecast for TYS

From Sun 8:00 pm EDT (00:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, scattered clouds at 1,000 feet, a broken layer at 1,500 feet
From Mon 3:00 am EDT (07:00 UTC): wind from the southwest at 7 knots, visibility more than 6 miles, a broken layer at 2,500 feet
From Mon 8:00 am EDT (12:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 3,500 feet, scattered clouds at 25,000 feet

The forecast for SBN, the departure

From Sun 8:00 pm EDT (00:00 UTC): wind light and variable, visibility more than 6 miles, clear skies
From Mon 2:00 am EDT (06:00 UTC): wind from the south at 6 knots, visibility 6 miles, mist, clear skies
From Mon 11:00 am EDT (15:00 UTC): wind from the south-southwest at 10 knots, visibility more than 6 miles, clear skies
From Mon 4:00 pm EDT (20:00 UTC): wind from the south-southwest at 11 knots, gusting to 20, visibility more than 6 miles, a few clouds at 25,000 feet

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

6/8029 Cincinnati, OH, Friday, October 9, 2026 through Monday, October 12, 2026 Local 20 nm from the route, 175 nm along the route · a VIP movement · until 12 October · ZID

Daylight

Sunset at SBN 7:09 pm EDT (23:09 UTC), at TYS 7:04 pm EDT (23:04 UTC) (civil twilight ends 7:30 pm EDT (23:30 UTC)). At 120 knots the arrival at TYS is before sunrise there (7:39 am EDT (11:39 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 now, the lower 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: South Bend International, MC Ghee Tyson Airport.