The U.S. aircraft register, updated daily
Plan a flight · Sun 10:23 pm CDT (03:23 UTC)

Waukegan Ntl Airport to Aspen-Pitkin County/Sardy Field UGN → ASE

882 nautical miles (1,015 statute miles) west on a straight line, true course 264°, about 267° magnetic at the departure end (variation 3W). At 120 knots that is 8 h 55 min at the quickest height in today's winds (10,500 ft, a 21-knot headwind), arriving about 6:18 am MDT (12:18 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: 8 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 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 228 to 684 nm out.
  • AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the last 218 nm of the route.
  • AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 169 nm of the route.
  • AIRMET TANGO 1W: 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 last 79 nm of the route.
  • AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the route from 843 to 872 nm out.

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 UGN.

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

  • B738 at 23,000 ft, 20 nm north, 9:34 pm CDT (02:34 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. 803 nm along the route, 20 nm north of the line.
    as filed, and in English
    DEN UA /OV DVV270030/TM 0234/FL230/TP B738/TB MOD /RM DURC ZDVWC-05
    Report
    a routine report filed through DEN
    Where
    30 nm west (270°) of DVV
    Time
    02:34 UTC
    Height
    at 23,000 ft
    Aircraft
    B738
    Turbulence
    moderate
    Remarks
    during the climb ZDVWC-05
  • BCS1 at 24,000 ft, 20 nm north, 8:30 pm CDT (01:30 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the climb ZDVWC-05. 803 nm along the route, 20 nm north 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
  • GLF4 at 25,000 ft, 1 nm west, 9:05 pm CDT (02:05 UTC): moderate turbulence, remarks: during the climb ZDVWC-05. 813 nm along the route, 1 nm west of the line.
    as filed, and in English
    DEN UA /OV FQF250040/TM 0205/FL250/TP GLF4/TB MOD /RM DURC ZDVWC-05
    Report
    a routine report filed through DEN
    Where
    40 nm west (250°) of FQF
    Time
    02:05 UTC
    Height
    at 25,000 ft
    Aircraft
    GLF4
    Turbulence
    moderate
    Remarks
    during the climb ZDVWC-05
  • B738 at 18,000 ft, 35 nm south, 9:02 pm CDT (02:02 UTC): moderate chop turbulence from 18,000 ft to 25,000 ft, remarks: during the climb ZDVWC-41. 813 nm along the route, 35 nm south of the line.
    as filed, and in English
    COS UA /OV BRK270030/TM 0202/FL180/TP B738/TB MOD CHOP 180-250/RM DURC ZDVWC-41
    Report
    a routine report filed through COS
    Where
    30 nm west (270°) of BRK
    Time
    02:02 UTC
    Height
    at 18,000 ft
    Aircraft
    B738
    Turbulence
    moderate chop from 18,000 ft to 25,000 ft
    Remarks
    during the climb ZDVWC-41
  • E75L at 28,000 ft, 50 nm north, 8:31 pm CDT (01:31 UTC): moderate turbulence, remarks: ZDVWC-03. At the destination end, 50 nm north of the line.
    as filed, and in English
    EEO UA /OV EKR085036/TM 0131/FL280/TP E75L/TB MOD/RM ZDVWC-03
    Report
    a routine report filed through EEO
    Where
    36 nm east (085°) of EKR
    Time
    01:31 UTC
    Height
    at 28,000 ft
    Aircraft
    E75L
    Turbulence
    moderate
    Remarks
    ZDVWC-03
  • E295 at 37,000 ft, 44 nm north, 7:53 pm CDT (00:53 UTC): light chop turbulence. At the departure end, 44 nm north of the line.
    as filed, and in English
    UES UA /OV BAE/TM 0053/FL370/TP E295/TB OCNL LGT CHOP
    Report
    a routine report filed through UES
    Where
    over BAE
    Time
    00:53 UTC
    Height
    at 37,000 ft
    Aircraft
    E295
    Turbulence
    occasional light chop
  • A321 at 32,000 ft, 19 nm south, 8:56 pm CDT (01:56 UTC): light turbulence, remarks: pocket continuous light turbulence. 79 nm along the route, 19 nm south of the line.
    as filed, and in English
    RPJ UA /OV PLL/TM 0156/FL320/TP A321/TB CONS LGT/RM POCKET CONS LGT TB
    Report
    a routine report filed through RPJ
    Where
    over PLL
    Time
    01:56 UTC
    Height
    at 32,000 ft
    Aircraft
    A321
    Turbulence
    continuous light
    Remarks
    pocket continuous light turbulence
  • UAL2499 at 28,000 ft, 25 nm south, 9:15 pm CDT (02:15 UTC): light chop turbulence. 169 nm along the route, 25 nm south of the line.
    as filed, and in English
    ARP UAL2499 4138N 09137W 0215 F280 TB INTMT LGT CHOP IC
    Report
    a routine report filed through ARP
  • A320 descending, 2 nm northwest, 10:19 pm CDT (03:19 UTC): no turbulence up to 10,000 ft. 773 nm along the route, 2 nm northwest of the line.
    as filed, and in English
    DEN UA /OV DEN/TM 0319/FLDURD/TP A320/TB NEG BLO 100
    Report
    a routine report filed through DEN
    Where
    over DEN
    Time
    03:19 UTC
    Height
    during the descent
    Aircraft
    A320
    Turbulence
    no below 10,000 ft
  • B737 descending, 2 nm northwest, 9:29 pm CDT (02:29 UTC): no turbulence up to 10,000 ft. 773 nm along the route, 2 nm northwest of the line.
    as filed, and in English
    DEN UA /OV DEN/TM 0229/FLDURD/TP B737/TB NEG BLO 100
    Report
    a routine report filed through DEN
    Where
    over DEN
    Time
    02:29 UTC
    Height
    during the descent
    Aircraft
    B737
    Turbulence
    no below 10,000 ft
  • B737 descending, 2 nm northwest, 8:23 pm CDT (01:23 UTC): no turbulence up to 10,000 ft. 773 nm along the route, 2 nm northwest 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
  • A321 descending, 2 nm northwest, 7:26 pm CDT (00:26 UTC): no turbulence up to 10,000 ft. 773 nm along the route, 2 nm northwest of the line.
    as filed, and in English
    DEN UA /OV DEN/TM 0026/FLDURD/TP A321/TB NEG BLO 100
    Report
    a routine report filed through DEN
    Where
    over DEN
    Time
    00:26 UTC
    Height
    during the descent
    Aircraft
    A321
    Turbulence
    no below 10,000 ft
  • GLF6 at 40,000 ft, 35 nm south, 7:48 pm CDT (00:48 UTC): light to moderate chop turbulence, remarks: ZDVWC-46. 793 nm along the route, 35 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
  • E55P at 38,000 ft, 32 nm south, 8:23 pm CDT (01:23 UTC): light chop turbulence, remarks: ZDVWC-05. 803 nm along the route, 32 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

5 more routine reports are on the map.

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 7 forecast points nearest it (JOT, DBQ, DSM, OMA, GRI, GLD, DEN). A plus sign is a headwind, a minus sign a tailwind.

HeightAverage windHead- or tailwindTemperatureGround speedTime en routeArrival
4,500 ft230° at 36 kt+33 kt21 °C87 kt10 h 08 min7:31 am MDT (13:31 UTC)
6,500 ft240° at 32 kt+30 kt17 °C90 kt9 h 48 min7:11 am MDT (13:11 UTC)
8,500 ft240° at 23 kt+22 kt13 °C98 kt9 h6:23 am MDT (12:23 UTC)
10,500 ft240° at 22 kt+21 kt9 °C99 kt8 h 55 min6:18 am MDT (12:18 UTC)
12,500 ft240° at 23 kt+22 kt5 °C98 kt9 h6:23 am MDT (12:23 UTC)
14,500 ft240° at 25 kt+24 kt0 °C96 kt9 h 11 min6:34 am MDT (12:34 UTC)
16,500 ft240° at 27 kt+26 kt-4 °C94 kt9 h 23 min6:46 am MDT (12:46 UTC)
18,000 ft FL180240° at 28 kt+27 kt-8 °C93 kt9 h 29 min6:52 am MDT (12:52 UTC)
24,000 ft FL240240° at 33 kt+33 kt-20 °C87 kt10 h 08 min7:31 am MDT (13:31 UTC)
30,000 ft FL300250° at 46 kt+46 kt-32 °C74 kt11 h 55 min9:18 am MDT (15:18 UTC)
34,000 ft FL340260° at 53 kt+54 kt-39 °C66 kt13 h 22 min10:45 am MDT (16:45 UTC)
39,000 ft FL390260° at 56 kt+56 kt-48 °C64 kt13 h 47 min11:10 am MDT (17:10 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
PointFrom3,0006,0009,00012,00018,00024,00030,00034,00039,000
JOTused from 0 nm out; 53 nm from the line250/23270/22 15°250/16 10°240/9 4°280/22 -7°280/29 -19°300/29 -34°290/50 -43°300/64 -52°
DBQused from 50 nm out; 53 nm from the line230/33250/30 16°280/15 9°260/15 5°260/21 -7°260/24 -20°250/37 -33°270/42 -43°280/63 -52°
DSMused from 198 nm out; 44 nm from the line230/40250/33 17°250/18 12°240/17 5°260/28 -8°270/34 -19°260/41 -33°260/55 -41°270/62 -51°
OMAused from 297 nm out; 44 nm from the line220/47240/33 19°250/18 11°230/17 6°260/29 -8°250/33 -19°250/51 -33°260/61 -40°270/62 -49°
GRIused from 397 nm out; 55 nm from the line230/35 21°230/23 13°220/20 7°240/25 -8°240/37 -20°250/49 -33°260/57 -38°260/58 -47°
GLDused from 595 nm out; 69 nm from the line230/49230/42 15°220/26 8°240/18 -7°230/27 -21°240/62 -30°240/61 -35°250/57 -47°
DENused from 694 nm out; 55 nm from the line240/21 14°250/44 6°220/49 -8°220/49 -21°230/54 -30°240/57 -35°240/49 -45°

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
UGN Chicago/Waukegan, IL departure no report just now 728 ft
RFD Chicago/Rockford, IL 59 nm out, 8 nm southeast of the line, tower no report just now 742 ft
DBQ Dubuque, IA 129 nm out, 15 nm north of the line, tower no report just now 1,076 ft
CID Cedar Rapids, IA 178 nm out, 11 nm southeast of the line, tower no report just now 869 ft
DSM Des Moines, IA 268 nm out, 17 nm southeast of the line, tower no report just now 957 ft
OMA Omaha, NE 367 nm out, 11 nm south of the line, tower no report just now 984 ft
GRI Grand Island, NE 476 nm out, 7 nm south of the line, tower no report just now 1,847 ft
LXN Lexington, NE 545 nm out, 3 nm southeast of the line no report just now 2,412 ft
AKO Akron, CO 704 nm out, 4 nm northwest of the line no report just now 4,716 ft
CFO Denver, CO 773 nm out, 4 nm east of the line, tower no report just now 5,515 ft
LXV Leadville, CO 863 nm out, 9 nm southeast of the line no report just now 9,933 ft
ASE Aspen, CO destination no report just now 7,837 ft

The highest airport on this list sits at 9,933 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.

At ASE when you get there the forecast at the estimated arrival, 6:18 am MDT (12:18 UTC)

ASE has no terminal forecast; use the nearest airport that does.

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 UGN 6:14 pm CDT (23:14 UTC), at ASE 6:33 pm MDT (00:33 UTC) (civil twilight ends 7:00 pm MDT (01:00 UTC)). At 120 knots the arrival at ASE is before sunrise there (7:14 am MDT (13:14 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
Radar now, the upper Mississippi valley · loop National Weather Service
Radar now, the northern Rockies
Radar now, the northern Rockies · loop National Weather Service
Radar now, the southern Rockies
Radar now, the southern Rockies · 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: Waukegan Ntl Airport, Aspen-Pitkin County/Sardy Field.