Plan a flight · Mon 12:48 am CDT (05:48 UTC)

Abraham Lincoln Capital Airport to MC Ghee Tyson Airport SPI → TYS

362 nautical miles (417 statute miles) southeast on a straight line, true course 130°, about 131° magnetic at the departure end (variation 1W). At 120 knots that is 2 h 05 min at the quickest height in today's winds (34,000 ft, a 54-knot tailwind), arriving about 3:53 am EDT (07:53 UTC), after sunset at the destination. Right now SPI is VFR, wind from the south (180°) at 11 knots; TYS is marginal VFR, wind from the south (190°) at 7 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: 1 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 last 235 nm of the route.
AIRMET SIERRA 4E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 49 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 SPI.

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

B738 descending, 0 nm west, 10:15 pm CDT (03:15 UTC): remarks: multiple layers from from 5,200 ft to 4,700 ft overcast at at 2,300 ft. At the destination 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, 9:52 pm CDT (02:52 UTC): remarks: tops 6,800 ft bases 2,300 ft. At the destination 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

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 5 forecast points nearest it (SPI, EVV, LOU, BNA, 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	280° at 14 kt	−13 kt		133 kt	2 h 43 min	4:31 am EDT (08:31 UTC)
5,500 ft	300° at 15 kt	−14 kt		134 kt	2 h 42 min	4:30 am EDT (08:30 UTC)
7,500 ft	310° at 18 kt	−18 kt	13 °C	138 kt	2 h 37 min	4:25 am EDT (08:25 UTC)
9,500 ft	310° at 20 kt	−20 kt	9 °C	140 kt	2 h 35 min	4:23 am EDT (08:23 UTC)
11,500 ft	320° at 19 kt	−18 kt	6 °C	138 kt	2 h 37 min	4:25 am EDT (08:25 UTC)
13,500 ft	320° at 20 kt	−20 kt	2 °C	140 kt	2 h 35 min	4:23 am EDT (08:23 UTC)
15,500 ft	320° at 22 kt	−22 kt	-2 °C	142 kt	2 h 33 min	4:21 am EDT (08:21 UTC)
17,500 ft	310° at 24 kt	−24 kt	-6 °C	144 kt	2 h 31 min	4:19 am EDT (08:19 UTC)
18,000 ft FL180	310° at 24 kt	−24 kt	-7 °C	144 kt	2 h 31 min	4:19 am EDT (08:19 UTC)
24,000 ft FL240	320° at 28 kt	−28 kt	-19 °C	148 kt	2 h 27 min	4:15 am EDT (08:15 UTC)
30,000 ft FL300	320° at 39 kt	−39 kt	-33 °C	159 kt	2 h 17 min	4:05 am EDT (08:05 UTC)
34,000 ft FL340	310° at 54 kt	−54 kt	-41 °C	174 kt	2 h 05 min	3:53 am EDT (07:53 UTC)
39,000 ft FL390	320° at 48 kt	−48 kt	-50 °C	168 kt	2 h 09 min	3:57 am EDT (07:57 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
SPI	used from 0 nm out; 24 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 98 nm out; 29 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 196 nm out; 54 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°
BNA	used from 245 nm out; 76 nm from the line	310/20	340/20 17°	330/24 10°	340/22 5°	330/26 -6°	340/29 -18°	330/52 -33°	320/62 -41°	340/45 -50°
TYS	used from 294 nm out; 44 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°

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
SPI Springfield, IL	departure	VFR	from the south (180°) at 11 knots	10+ mi	none	597 ft	11:52 pm CDT (04:52 UTC)
DEC Decatur, IL	29 nm out, 24 nm northeast of the line, tower	VFR Weather: haze	from the south-southwest (200°) at 6 knots	6 mi	none	681 ft	04:54 UTC
VLA Vandalia, IL	49 nm out, 24 nm southwest of the line	no report just now				537 ft
AJG Mount Carmel, IL	117 nm out, 3 nm northeast of the line	marginal VFR Weather: mist	calm	4 mi	none	429 ft	05:35 UTC
EVV Evansville, IN	147 nm out, 16 nm southwest of the line, tower	IFR Weather: mist	calm	1.75 mi	none	421 ft	05:41 UTC
OWB Owensboro, KY	176 nm out, 19 nm southwest of the line, tower	marginal VFR Weather: mist	calm	4 mi	none	407 ft	04:56 UTC
EKX Elizabethtown, KY	215 nm out, 19 nm northeast of the line	low IFR Sky: overcast at 100 feet Weather: fog	calm	0.5 mi	100 ft	775 ft	05:35 UTC
GLW Glasgow, KY	245 nm out, 11 nm southwest of the line	low IFR Sky: overcast at 200 feet Weather: fog	calm	0.25 mi	200 ft	716 ft	05:35 UTC
SCX Oneida, TN	313 nm out, 8 nm northeast of the line	marginal VFR Sky: scattered clouds at 900 feet, overcast at 1,800 feet	calm	8 mi	1,800 ft	1,544 ft	05:35 UTC
JAU Jacksboro, TN	333 nm out, 17 nm northeast of the line	marginal VFR Sky: overcast at 1,600 feet	calm	10+ mi	1,600 ft	1,179 ft	05:35 UTC
TYS Knoxville, TN	destination	marginal VFR Sky: overcast at 3,000 feet	from the south (190°) at 7 knots	10+ mi	3,000 ft	986 ft	1:34 am EDT (05:34 UTC)

The highest airport on this list sits at 1,544 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, 3:53 am EDT (07:53 UTC)

Wind from the southwest at 4 knots, visibility more than 6 miles, overcast at 2,500 feet marginal VFR

The whole forecast for TYS

From Mon 2:00 am EDT (06:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, overcast at 2,500 feet
From Mon 5:00 am EDT (09:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet
At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): a broken layer at 2,500 feet
From Mon 12:00 pm EDT (16:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, clear skies

The forecast for SPI, the departure

From Sun 7:00 pm CDT (00:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a few clouds at 25,000 feet
From Mon 3:00 am CDT (08:00 UTC): wind from the south-southwest at 8 knots, visibility more than 6 miles, scattered clouds at 18,000 feet, a broken layer at 25,000 feet
From Mon 11:00 am CDT (16:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, scattered clouds at 10,000 feet, a broken layer at 18,000 feet

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

No temporary flight restriction on or near this route right now.

Daylight

Sunset at SPI 6:24 pm CDT (23:24 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 upper Mississippi valley · loop National Weather Service

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: Abraham Lincoln Capital Airport, MC Ghee Tyson Airport.