MC Ghee Tyson Airport to South Bend International TYS → SBN
370 nautical miles (426 statute miles) north on a straight line, true course 344°, about 350° magnetic at the departure end (variation 6W). At 120 knots that is 3 h 40 min at the quickest height in today's winds (4,500 ft, a 19-knot headwind), arriving about 4:53 am EDT (08:53 UTC), after sunset at the destination. Right now TYS is marginal VFR, wind from the southwest (220°) at 5 knots; SBN 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: 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 whole route.
- AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 58 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 TYS.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B738 descending, 0 nm west, 11:15 pm EDT (03:15 UTC): remarks: multiple layers from from 5,200 ft to 4,700 ft overcast at at 2,300 ft. At the departure end, 0 nm west of the line.
as filed, and in English
TYS UA /OV KTYS/TM 0315/FLDURD/TP B738/RM MULTIPLE LAYERS FROM 052-047 OVC AT 023
- Report
- a routine report filed through TYS
- Where
- over KTYS
- Time
- 03:15 UTC
- Height
- during the descent
- Aircraft
- B738
- Remarks
- multiple layers from from 5,200 ft to 4,700 ft overcast at at 2,300 ft
- A319 descending, 0 nm west, 10:52 pm EDT (02:52 UTC): remarks: tops 6,800 ft bases 2,300 ft. At the departure end, 0 nm west of the line.
as filed, and in English
TYS UA /OV KTYS/TM 0252/FLDURD/TP A319/RM TOPS 068 BASES 023
- Report
- a routine report filed through TYS
- Where
- over KTYS
- Time
- 02:52 UTC
- Height
- during the descent
- Aircraft
- A319
- Remarks
- tops 6,800 ft bases 2,300 ft
- LJ45 at 10,000 ft, 27 nm east, 12:31 am EDT (04:31 UTC): no turbulence, clear, remarks: ground fog at fwa FV10SM on final runway 14. 331 nm along the route, 27 nm east of the line.
as filed, and in English
FWA UA /OV OLK/TM 0431/FL100/TP LJ45/SK CLR/TB SMOOTH/RM GROUND FOG AT FWA. FV10SM ON FINAL RY 14
- Report
- a routine report filed through FWA
- Where
- over OLK
- Time
- 04:31 UTC
- Height
- at 10,000 ft
- Aircraft
- LJ45
- Sky
- clear
- Turbulence
- smooth
- Remarks
- ground fog at fwa FV10SM on final runway 14
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 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 5 forecast points nearest it (TYS, LOU, CVG, IND, 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 | 330° at 20 kt | +19 kt | 101 kt | 3 h 40 min | 4:53 am EDT (08:53 UTC) | |
| 6,500 ft | 340° at 24 kt | +24 kt | 14 °C | 96 kt | 3 h 51 min | 5:04 am EDT (09:04 UTC) |
| 8,500 ft | 340° at 27 kt | +27 kt | 10 °C | 93 kt | 3 h 59 min | 5:12 am EDT (09:12 UTC) |
| 10,500 ft | 340° at 27 kt | +27 kt | 6 °C | 93 kt | 3 h 59 min | 5:12 am EDT (09:12 UTC) |
| 12,500 ft | 340° at 26 kt | +26 kt | 2 °C | 94 kt | 3 h 56 min | 5:09 am EDT (09:09 UTC) |
| 14,500 ft | 330° at 27 kt | +27 kt | -1 °C | 93 kt | 3 h 59 min | 5:12 am EDT (09:12 UTC) |
| 16,500 ft | 330° at 28 kt | +27 kt | -4 °C | 93 kt | 3 h 59 min | 5:12 am EDT (09:12 UTC) |
| 18,000 ft FL180 | 320° at 30 kt | +28 kt | -7 °C | 92 kt | 4 h 01 min | 5:14 am EDT (09:14 UTC) |
| 24,000 ft FL240 | 330° at 38 kt | +37 kt | -19 °C | 83 kt | 4 h 27 min | 5:40 am EDT (09:40 UTC) |
| 30,000 ft FL300 | 330° at 53 kt | +52 kt | -35 °C | 68 kt | 5 h 26 min | 6:39 am EDT (10:39 UTC) |
| 34,000 ft FL340 | 330° at 63 kt | +61 kt | -41 °C | 59 kt | 6 h 16 min | 7:29 am EDT (11:29 UTC) |
| 39,000 ft FL390 | 330° at 47 kt | +45 kt | -49 °C | 75 kt | 4 h 56 min | 6:09 am EDT (10:09 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| TYS | used from 0 nm out; 24 nm from the line | 320/20 | 340/18 11° | 340/32 9° | 340/36 4° | 330/37 -7° | 330/38 -19° | 330/50 -34° | 330/53 -38° | 330/44 -48° |
| LOU | used from 97 nm out; 53 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° |
| CVG | used from 146 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° |
| IND | used from 244 nm out; 37 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° |
| FWA | used from 292 nm out; 35 nm from the line | 300/17 | 320/20 16° | 330/20 10° | 340/15 3° | 310/27 -8° | 320/37 -20° | 330/52 -36° | 330/65 -43° | 330/60 -50° |
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 |
|---|---|---|---|---|---|---|---|
| TYS Knoxville, TN | departure | marginal VFR Sky: overcast at 2,700 feet | from the southwest (220°) at 5 knots | 10+ mi | 2,700 ft | 986 ft | 12:53 am EDT (04:53 UTC) |
| JAU Jacksboro, TN | 29 nm out, 3 nm north of the line | marginal VFR Sky: a broken layer at 1,100 feet, a broken layer at 1,600 feet, overcast at 2,900 feet | variable at 6 knots, gusting to 15 | 10+ mi | 1,100 ft | 1,179 ft | 04:50 UTC |
| BYL Williamsburg, KY | 58 nm out, 7 nm northeast of the line | IFR Sky: a broken layer at 900 feet, overcast at 1,500 feet Weather: mist | from the west (280°) at 3 knots | 1.5 mi | 900 ft | 1,177 ft | 04:55 UTC |
| DVK Danville, KY | 117 nm out, 7 nm southwest of the line | marginal VFR Weather: mist | calm | 3 mi | none | 1,021 ft | 04:55 UTC |
| LEX Lexington, KY | 136 nm out, 10 nm east of the line, tower | IFR Weather: mist | from the south-southwest (210°) at 5 knots | 1.25 mi | none | 979 ft | 04:54 UTC |
| CVG Covington, KY | 195 nm out, 25 nm east of the line, tower | marginal VFR Weather: mist | calm | 5 mi | none | 896 ft | 04:52 UTC |
| HLB Batesville, IN | 224 nm out, 5 nm southeast of the line | IFR Sky: scattered clouds at 2,200 feet, scattered clouds at 2,800 feet Weather: mist | calm | 1.25 mi | none | 975 ft | 04:55 UTC |
| AID Anderson, IN | 273 nm out, 4 nm southeast of the line, tower | low IFR Sky: overcast at 200 feet Weather: fog | calm | 0.25 mi | 200 ft | 919 ft | 05:15 UTC |
| GUS Peru, IN | 312 nm out, 13 nm southwest of the line, tower | VFR | from the south-southeast (160°) at 5 knots | 10+ mi | none | 810 ft | 04:55 UTC |
| RCR Rochester, IN | 331 nm out, 6 nm west of the line | VFR | from the south-southeast (160°) at 6 knots | 10+ mi | none | 789 ft | 04:55 UTC |
| SBN South Bend, IN | destination | VFR | calm | 9 mi | none | 798 ft | 12:54 am EDT (04:54 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 SBN when you get there the forecast at the estimated arrival, 4:53 am EDT (08:53 UTC)
Wind light and variable, visibility 2 miles, mist, clear skies IFR
The whole forecast for SBN
- From Mon 12:00 am EDT (04:00 UTC): wind light and variable, visibility 2 miles, mist, clear skies
- At times between Mon 12:00 am EDT (04:00 UTC) and 3:00 am EDT (07:00 UTC): visibility ½ mile, fog
- From Mon 6:00 am EDT (10:00 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
The forecast for TYS, the departure
- 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
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, 195 nm along the route · a VIP movement · until 12 October · ZID
Daylight
Sunset at TYS 7:04 pm EDT (23:04 UTC), at SBN 7:09 pm EDT (23:09 UTC) (civil twilight ends 7:36 pm EDT (23:36 UTC)). At 120 knots the arrival at SBN is before sunrise there (7:53 am EDT (11:53 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
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: MC Ghee Tyson Airport, South Bend International.