Chicago O'Hare International to Huntsville Intl-Carl T Jones Field ORD → HSV
444 nautical miles (511 statute miles) south on a straight line, true course 173°, about 176° magnetic at the departure end (variation 3W). At 120 knots that is 2 h 41 min at the quickest height in today's winds (30,000 ft, a 45-knot tailwind), arriving about 9:29 pm CDT (02:29 UTC), after sunset at the destination. 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: 3,045 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 TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the last 109 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 ORD.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
Not fetched just now.
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 (JOT, IND, EVV, BNA, HSV). 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 | 300° at 12 kt | −8 kt | 128 kt | 3 h 28 min | 10:16 pm CDT (03:16 UTC) | |
| 5,500 ft | 330° at 22 kt | −21 kt | 141 kt | 3 h 09 min | 9:57 pm CDT (02:57 UTC) | |
| 7,500 ft | 330° at 27 kt | −26 kt | 13 °C | 146 kt | 3 h 02 min | 9:50 pm CDT (02:50 UTC) |
| 9,500 ft | 330° at 30 kt | −28 kt | 9 °C | 148 kt | 3 h | 9:48 pm CDT (02:48 UTC) |
| 11,500 ft | 330° at 31 kt | −29 kt | 5 °C | 149 kt | 2 h 59 min | 9:47 pm CDT (02:47 UTC) |
| 13,500 ft | 330° at 31 kt | −29 kt | 1 °C | 149 kt | 2 h 59 min | 9:47 pm CDT (02:47 UTC) |
| 15,500 ft | 330° at 30 kt | −28 kt | -4 °C | 148 kt | 3 h | 9:48 pm CDT (02:48 UTC) |
| 17,500 ft | 330° at 30 kt | −27 kt | -8 °C | 147 kt | 3 h 01 min | 9:49 pm CDT (02:49 UTC) |
| 18,000 ft FL180 | 330° at 29 kt | −26 kt | -9 °C | 146 kt | 3 h 02 min | 9:50 pm CDT (02:50 UTC) |
| 24,000 ft FL240 | 330° at 36 kt | −34 kt | -20 °C | 154 kt | 2 h 53 min | 9:41 pm CDT (02:41 UTC) |
| 30,000 ft FL300 | 330° at 50 kt | −45 kt | -36 °C | 165 kt | 2 h 41 min | 9:29 pm CDT (02:29 UTC) |
| 34,000 ft FL340 | 320° at 52 kt | −45 kt | -42 °C | 165 kt | 2 h 41 min | 9:29 pm CDT (02:29 UTC) |
| 39,000 ft FL390 | 320° at 45 kt | −40 kt | -48 °C | 160 kt | 2 h 46 min | 9:34 pm CDT (02:34 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| JOT | used from 0 nm out; 15 nm from the line | 230/11 | 290/12 16° | 300/19 10° | 320/19 4° | 300/17 -9° | 330/31 -20° | 320/49 -37° | 320/53 -45° | 320/67 -49° |
| IND | used from 99 nm out; 60 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° |
| EVV | used from 197 nm out; 19 nm from the line | 310/13 | 340/26 16° | 330/29 10° | 330/32 4° | 330/30 -9° | 340/38 -20° | 330/60 -35° | 320/57 -41° | 330/39 -48° |
| BNA | used from 296 nm out; 38 nm from the line | 280/13 | 340/34 16° | 330/38 10° | 330/44 5° | 330/39 -8° | 330/38 -19° | 320/49 -34° | 330/53 -40° | 330/35 -47° |
| HSV | used from 395 nm out; 25 nm from the line | 290/15 | 330/34 16° | 330/38 11° | 330/40 5° | 320/36 -7° | 320/31 -18° | 320/44 -34° | 330/53 -41° | 330/34 -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 |
|---|---|---|---|---|---|---|---|
| ORD Chicago, IL | departure | no report just now | 680 ft | ||||
| LOT Chicago/Romeoville, IL | 20 nm out, 11 nm west of the line, tower | no report just now | 679 ft | ||||
| IKK Kankakee, IL | 59 nm out, 6 nm northwest of the line | no report just now | 629 ft | ||||
| DNV Danville, IL | 109 nm out, 1 nm northeast of the line | no report just now | 696 ft | ||||
| HUF Terre Haute, IN | 158 nm out, 9 nm northeast of the line, tower | no report just now | 589 ft | ||||
| SIV Sullivan, IN | 178 nm out, 4 nm north of the line | no report just now | 539 ft | ||||
| OWB Owensboro, KY | 256 nm out, 3 nm east of the line, tower | no report just now | 407 ft | ||||
| JQD Hartford, KY | 276 nm out, 16 nm east of the line | no report just now | 537 ft | ||||
| JWN Nashville, TN | 355 nm out, 7 nm northeast of the line, tower | no report just now | 501 ft | ||||
| MQY Smyrna, TN | 365 nm out, 22 nm east of the line, tower | no report just now | 543 ft | ||||
| GZS Pulaski, TN | 414 nm out, 11 nm west of the line | no report just now | 688 ft | ||||
| HSV Huntsville, AL | destination | no report just now | 628 ft |
The highest airport on this list sits at 696 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HSV when you get there the forecast at the estimated arrival, 9:29 pm CDT (02:29 UTC)
HSV has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 6/0708 Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC 15 nm from the route, 345 nm along the route · security · until 1 August · ZME
Daylight
Sunset at ORD 6:16 pm CDT (23:16 UTC), at HSV 6:17 pm CDT (23:17 UTC) (civil twilight ends 6:43 pm CDT (23:43 UTC)). At 120 knots the arrival at HSV is after sunset there (6:17 pm CDT (23:17 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: Chicago O'Hare International, Huntsville Intl-Carl T Jones Field.