The U.S. aircraft register, updated daily
Plan a flight · Sun 10:11 pm EDT (02:11 UTC)

Blue Grass Airport to Denver International LEX → DEN

941 nautical miles (1,083 statute miles) west on a straight line, true course 283°, about 287° magnetic at the departure end (variation 4W). At 120 knots that is 8 h 33 min at the quickest height in today's winds (4,500 ft, a 10-knot headwind), arriving about 4:44 am MDT (10:44 UTC), after sunset at the destination. Right now LEX is marginal VFR, wind from the west (270°) at 4 knots; DEN is VFR, wind from the south-southwest (200°) at 14 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: 726 flights in the DOT's last twelve reported months, the route's page.

The return flight

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). Near the route, at the departure end.
  • AIRMET TANGO 3W: low-level wind shear (due to air speed loss or gain of 20 knots or more below 2,000 ft above the ground). Over the route from 456 to 803 nm out.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 59 nm of the route.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 59 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 LEX.

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

  • UAL2199 at 35,000 ft, 16 nm north, 7:31 pm EDT (23:31 UTC): moderate chop turbulence, wind 247° at 79 knots. 892 nm along the route, 16 nm north of the line.
    as filed, and in English
    ARP UAL2199 4007N 10337W 2331 F350 247/079KT TB MOD CHOP IC
    Report
    a routine report filed through ARP
  • A21N at 32,000 ft, 25 nm north, 7:42 pm EDT (23:42 UTC): moderate chop turbulence, remarks: ZDVWC-61. 902 nm along the route, 25 nm north of the line.
    as filed, and in English
    AKO UA /OV AKO270030/TM 2342/FL320/TP A21N/TB INTMT MOD CHOP/RM ZDVWC-61
    Report
    a routine report filed through AKO
    Where
    30 nm west (270°) of AKO
    Time
    23:42 UTC
    Height
    at 32,000 ft
    Aircraft
    A21N
    Turbulence
    intermittent moderate chop
    Remarks
    ZDVWC-61
  • BCS1 at 24,000 ft, 28 nm west, 9:30 pm EDT (01:30 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the climb ZDVWC-05. At the destination end, 28 nm west of the line.
    as filed, and in English
    DEN UA /OV DVV270030/TM 0130/FL240/TP BCS1/TB MOD 220-240/RM DURC ZDVWC-05
    Report
    a routine report filed through DEN
    Where
    30 nm west (270°) of DVV
    Time
    01:30 UTC
    Height
    at 24,000 ft
    Aircraft
    BCS1
    Turbulence
    moderate from 22,000 ft to 24,000 ft
    Remarks
    during the climb ZDVWC-05
  • BCS3 at 24,000 ft, 42 nm northwest, 7:28 pm EDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. At the destination end, 42 nm northwest of the line.
    as filed, and in English
    DEN UA /OV DEN320045/TM 2328/FL240/TP BCS3/TB MOD 240-220/RM DURD
    Report
    a routine report filed through DEN
    Where
    45 nm northwest (320°) of DEN
    Time
    23:28 UTC
    Height
    at 24,000 ft
    Aircraft
    BCS3
    Turbulence
    moderate from 24,000 ft to 22,000 ft
    Remarks
    during the descent
  • B712 at 600 ft, 0 nm south, 9:06 pm EDT (01:06 UTC): overcast. At the departure end, 0 nm south 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, 0 nm south, 7:43 pm EDT (23:43 UTC): overcast up to 6,200 ft; overcast above 1,800 ft. At the departure end, 0 nm south 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
  • B38M at 21,000 ft, 7 nm south, 9:09 pm EDT (01:09 UTC): no turbulence, no icing. 50 nm along the route, 7 nm south 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
  • A21N at 17,000 ft, 38 nm north, 9:28 pm EDT (01:28 UTC): no icing, clear from 17,000 ft to 60,000 ft, remarks: clear since departing KIND southbound. 89 nm along the route, 38 nm north 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
  • B38M at 23,700 ft, 29 nm north, 7:51 pm EDT (23:51 UTC): light turbulence. 139 nm along the route, 29 nm north of the line.
    as filed, and in English
    IND UA /OV TTH190030/TM 2351/FL237/TP B38M/TB LGT
    Report
    a routine report filed through IND
    Where
    30 nm south (190°) of TTH
    Time
    23:51 UTC
    Height
    at 23,700 ft
    Aircraft
    B38M
    Turbulence
    light
  • B738 at 35,000 ft, 25 nm north, 7:30 pm EDT (23:30 UTC): light turbulence, remarks: ZDVWC-07. 902 nm along the route, 25 nm north of the line.
    as filed, and in English
    AKO UA /OV AKO270030/TM 2330/FL350/TP B738/TB CONS LGT /RM ZDVWC-07
    Report
    a routine report filed through AKO
    Where
    30 nm west (270°) of AKO
    Time
    23:30 UTC
    Height
    at 35,000 ft
    Aircraft
    B738
    Turbulence
    continuous light
    Remarks
    ZDVWC-07
  • A320 at 8,000 ft, 2 nm southeast, 7:42 pm EDT (23:42 UTC): light chop turbulence from 8,000 ft to 16,000 ft, remarks: during the climb. At the destination end, 2 nm southeast of the line.
    as filed, and in English
    DEN UA /OV DEN080030/TM 2342/FL080/TP A320/TB LGT CHOP 080-160/RM DURC
    Report
    a routine report filed through DEN
    Where
    30 nm east (080°) of DEN
    Time
    23:42 UTC
    Height
    at 8,000 ft
    Aircraft
    A320
    Turbulence
    light chop from 8,000 ft to 16,000 ft
    Remarks
    during the climb
  • B737 descending, 3 nm south, 9:23 pm EDT (01:23 UTC): no turbulence up to 10,000 ft. At the destination end, 3 nm south of the line.
    as filed, and in English
    DEN UA /OV DEN/TM 0123/FLDURD/TP B737/TB NEG BLO 100
    Report
    a routine report filed through DEN
    Where
    over DEN
    Time
    01:23 UTC
    Height
    during the descent
    Aircraft
    B737
    Turbulence
    no below 10,000 ft
  • E55P at 38,000 ft, 48 nm south, 9:23 pm EDT (01:23 UTC): light chop turbulence, remarks: ZDVWC-05. At the destination end, 48 nm south of the line.
    as filed, and in English
    DEN UA /OV FQF200040/TM 0123/FL380/TP E55P/TB LGT CHOP/RM ZDVWC-05
    Report
    a routine report filed through DEN
    Where
    40 nm south (200°) of FQF
    Time
    01:23 UTC
    Height
    at 38,000 ft
    Aircraft
    E55P
    Turbulence
    light chop
    Remarks
    ZDVWC-05
  • GLF6 at 40,000 ft, 44 nm south, 8:48 pm EDT (00:48 UTC): light to moderate chop turbulence, remarks: ZDVWC-46. At the destination end, 44 nm south of the line.
    as filed, and in English
    COS UA /OV COS340020/TM 0048/FL400/TP GLF6/TB LGT-MOD CHOP/RM ZDVWC-46
    Report
    a routine report filed through COS
    Where
    20 nm north (340°) of COS
    Time
    00:48 UTC
    Height
    at 40,000 ft
    Aircraft
    GLF6
    Turbulence
    light to moderate chop
    Remarks
    ZDVWC-46

4 more routine reports are on the map.

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 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 8 forecast points nearest it (LOU, EVV, STL, COU, MKC, SLN, GLD, DEN). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft220° at 18 kt+10 kt110 kt8 h 33 min4:44 am MDT (10:44 UTC)
6,500 ft230° at 18 kt+14 kt16 °C106 kt8 h 53 min5:04 am MDT (11:04 UTC)
8,500 ft250° at 19 kt+17 kt12 °C103 kt9 h 08 min5:19 am MDT (11:19 UTC)
10,500 ft260° at 19 kt+20 kt9 °C100 kt9 h 25 min5:36 am MDT (11:36 UTC)
12,500 ft270° at 21 kt+22 kt5 °C98 kt9 h 36 min5:47 am MDT (11:47 UTC)
14,500 ft270° at 22 kt+23 kt1 °C97 kt9 h 42 min5:53 am MDT (11:53 UTC)
16,500 ft280° at 23 kt+24 kt-4 °C96 kt9 h 48 min5:59 am MDT (11:59 UTC)
18,000 ft FL180280° at 25 kt+26 kt-7 °C94 kt10 h 01 min6:12 am MDT (12:12 UTC)
24,000 ft FL240270° at 23 kt+24 kt-19 °C96 kt9 h 48 min5:59 am MDT (11:59 UTC)
30,000 ft FL300280° at 36 kt+38 kt-32 °C82 kt11 h 29 min7:40 am MDT (13:40 UTC)
34,000 ft FL340280° at 44 kt+45 kt-40 °C75 kt12 h 33 min8:44 am MDT (14:44 UTC)
39,000 ft FL390280° at 47 kt+48 kt-50 °C72 kt13 h 04 min9:15 am MDT (15:15 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
LOUused from 0 nm out; 26 nm from the line320/15340/24 14°330/28 9°340/34 4°340/37 -9°340/42 -20°320/39 -35°320/45 -39°330/40 -47°
EVVused from 99 nm out; 31 nm from the line310/13340/26 16°330/29 10°330/32 4°330/30 -9°340/38 -20°330/60 -35°320/57 -41°330/39 -48°
STLused from 198 nm out; 52 nm from the line210/13260/16 17°270/21 10°280/24 5°310/20 -7°320/22 -18°320/44 -33°320/59 -43°310/69 -51°
COUused from 297 nm out; 43 nm from the line210/16220/19 15°240/33 10°250/29 7°280/21 -6°280/19 -18°300/34 -31°300/40 -42°300/60 -52°
MKCused from 396 nm out; 54 nm from the line200/28220/30 16°270/20 11°280/22 7°260/27 -6°270/27 -18°280/38 -32°270/38 -40°280/50 -52°
SLNused from 545 nm out; 66 nm from the line190/37220/39 20°240/31 14°250/24 7°260/25 -7°250/26 -17°250/44 -31°260/47 -40°260/47 -50°
GLDused from 694 nm out; 89 nm from the line190/29200/30 15°240/23 8°250/39 -7°230/39 -19°230/57 -31°240/67 -39°250/62 -49°
DENused from 892 nm out; 25 nm from the line190/31 16°210/32 7°240/41 -8°230/47 -21°240/56 -32°250/65 -37°250/61 -47°

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

AirportWhereConditionsWindVisibilityCeilingElevationReported
LEX Lexington, KY departure 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 9:54 pm EDT (01:54 UTC)
LOU Louisville, KY 50 nm out, 2 nm northwest of the line, tower VFR calm 10+ mi none 545 ft 01:53 UTC
FOA Flora, IL 188 nm out, 3 nm east of the line VFR calm 10+ mi none 472 ft 01:55 UTC
ALN Alton/St Louis, IL 258 nm out, 3 nm west of the line, tower VFR from the southeast (140°) at 6 knots 10+ mi none 543 ft 01:50 UTC
SUS St Louis, MO 287 nm out, 18 nm south of the line, tower VFR calm 10+ mi none 463 ft 01:54 UTC
GPH Mosby, MO 466 nm out, 5 nm southeast of the line VFR from the south (190°) at 5 knots 10+ mi none 777 ft 22:55 UTC
MCI Kansas City, MO 476 nm out, 7 nm southwest of the line, tower VFR from the south (170°) at 9 knots 10+ mi none 1,027 ft 01:53 UTC
CNK Concordia, KS 614 nm out, 5 nm southwest of the line VFR Weather: light rain from the south (180°) at 16 knots, gusting to 23 10+ mi none 1,488 ft 01:55 UTC
PHG Phillipsburg, KS 694 nm out, 1 nm northwest of the line VFR from the south (180°) at 18 knots, gusting to 23 10+ mi none 1,910 ft 01:55 UTC
ADT Atwood, KS 773 nm out, 3 nm north of the line VFR from the south (180°) at 14 knots 10+ mi none 2,990 ft 01:55 UTC
AKO Akron, CO 872 nm out, 20 nm north of the line VFR from the south (180°) at 11 knots 10+ mi none 4,716 ft 01:53 UTC
DEN Denver, CO destination VFR Sky: a few clouds at 14,000 feet, a broken layer at 22,000 feet from the south-southwest (200°) at 14 knots 10+ mi 22,000 ft 5,433 ft 7:53 pm MDT (01:53 UTC)

The highest airport on this list sits at 5,433 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At DEN when you get there the forecast at the estimated arrival, 4:44 am MDT (10:44 UTC)

Wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet VFR

The whole forecast for DEN
  • From Sun 7:00 pm MDT (01:00 UTC): wind from the south at 14 knots, gusting to 21, visibility more than 6 miles, a few clouds at 10,000 feet, a few clouds at 14,000 feet and more above
  • From Sun 7:00 pm MDT (01:00 UTC): wind from the southwest at 14 knots, gusting to 23, visibility more than 6 miles, a few clouds at 14,000 feet, scattered clouds at 22,000 feet
  • From Mon 1:00 am MDT (07:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, a few clouds at 22,000 feet
  • From Mon 9:00 am MDT (15:00 UTC): wind from the southwest at 14 knots, gusting to 21, visibility more than 6 miles, clear skies
  • From Mon 4:00 pm MDT (22:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, clear skies
  • From Mon 7:00 pm MDT (01:00 UTC): wind from the northeast at 8 knots, visibility more than 6 miles, clear skies
The forecast for LEX, the departure
  • From Sun 8:00 pm EDT (00:00 UTC): wind from the west-northwest at 6 knots, visibility more than 6 miles, overcast at 1,500 feet
  • From Mon 12:00 am EDT (04:00 UTC): wind from the west at 4 knots, visibility 6 miles, mist, scattered clouds at 1,500 feet
  • From Mon 4:00 am EDT (08:00 UTC): wind from the south-southwest at 3 knots, visibility 2 miles, mist, clear skies
  • At times between Mon 5:00 am EDT (09:00 UTC) and 9:00 am EDT (13:00 UTC): visibility ¼ mile, fog, overcast at 100 feet
  • From Mon 9:00 am EDT (13:00 UTC): wind from the south-southwest at 6 knots, visibility more than 6 miles, clear skies

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

  • 6/7634 CENTRALIA, MO, Monday, October 12, 2026 UTC 2 nm from the route, 357 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · today · ZKC

Daylight

Sunset at LEX 7:05 pm EDT (23:05 UTC), at DEN 6:24 pm MDT (00:24 UTC) (civil twilight ends 6:51 pm MDT (00:51 UTC)). At 120 knots the arrival at DEN is before sunrise there (7:05 am MDT (13:05 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
Radar now, the central Great Lakes · loop National Weather Service
Radar now, the upper Mississippi valley
Radar now, the upper Mississippi valley · loop National Weather Service
Radar now, the southern Plains
Radar now, the southern Plains · loop National Weather Service
Radar, the whole country
Radar, the whole country · loop National Weather Service
Surface analysis now
Surface analysis now Weather Prediction Center
Forecast chart, 12 hours ahead
Forecast chart, 12 hours ahead Weather Prediction Center
Forecast chart, 24 hours ahead
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: Blue Grass Airport, Denver International.