Aspen-Pitkin County/Sardy Field to Dallas-Fort Worth International ASE → DFW
609 nautical miles (701 statute miles) southeast on a straight line, true course 126°, about 117° magnetic at the departure end (variation 9E). At 120 knots that is 4 h 04 min at the quickest height in today's winds (34,000 ft, a 30-knot tailwind), arriving about 1:43 am CDT (06:43 UTC), after sunset at the destination. Right now ASE is VFR, wind calm; DFW is VFR, wind from the south-southeast (150°) at 9 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: 2,165 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
- SIGMET 6W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 9:55 pm MDT (03:55 UTC). Over the route from 50 to 190 nm out.
as issued
WSUS33 KKCI 120155 MKCW WST 120155 CONVECTIVE SIGMET 6W VALID UNTIL 0355Z CO NM FROM 50SSW DEN-30NNE TBE-50SSW CME-50E SJN-20NE DVC-50SSW DEN AREA TS MOV FROM 23040KT. TOPS TO FL340.
- 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 first 90 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the first 160 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 210 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 90 nm of the route.
- 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). Near the route, 210 nm along 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 ASE.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent B407 at 10,000 ft, 35 nm northeast, 8:13 pm MDT (02:13 UTC): moderate to severe turbulence. 90 nm along the route, 35 nm northeast of the line.
as filed, and in English
COS UUA /OV 10 W COS/TM 0213/FL100/TP B407/TB MDT-SEV
- Report
- an urgent report filed through COS
- Where
- 10 west cos
- Time
- 02:13 UTC
- Height
- at 10,000 ft
- Aircraft
- B407
- Turbulence
- mdt-sev
- E75L at 28,000 ft, 50 nm north, 7:31 pm MDT (01:31 UTC): moderate turbulence, remarks: ZDVWC-03. At the departure 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
- C650 at 40,000 ft, 13 nm north, 5:48 pm MDT (23:48 UTC): moderate turbulence, remarks: ZDVWC-03. At the departure end, 13 nm north of the line.
as filed, and in English
ASE UA /OV DBL/TM 2348/FL400/TP C650/TB MOD /RM ZDVWC-03
- Report
- a routine report filed through ASE
- Where
- over DBL
- Time
- 23:48 UTC
- Height
- at 40,000 ft
- Aircraft
- C650
- Turbulence
- moderate
- Remarks
- ZDVWC-03
- B738 at 18,000 ft, 34 nm northeast, 8:02 pm MDT (02:02 UTC): moderate chop turbulence from 18,000 ft to 25,000 ft, remarks: during the climb ZDVWC-41. 70 nm along the route, 34 nm northeast 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
- BE9L at 24,500 ft, 8 nm southwest, 8:21 pm MDT (02:21 UTC): moderate turbulence, remarks: ZDVWC-41. 100 nm along the route, 8 nm southwest of the line.
as filed, and in English
PUB UA /OV PUB250040/TM 0221/FL245/TP BE9L/TB OCNL MOD/RM ZDVWC-41
- Report
- a routine report filed through PUB
- Where
- 40 nm west (250°) of PUB
- Time
- 02:21 UTC
- Height
- at 24,500 ft
- Aircraft
- BE9L
- Turbulence
- occasional moderate
- Remarks
- ZDVWC-41
- B738 at 32,000 ft, 39 nm northeast, 7:42 pm MDT (01:42 UTC): light to moderate turbulence up to 30,000 ft, remarks: during the climb ZDVWC-05. At the departure end, 39 nm northeast of the line.
as filed, and in English
EGE UA /OV RLG160014/TM 0142/FL320/TP B738/TB LGT-MOD BLO 300/RM DURC ZDVWC-05
- Report
- a routine report filed through EGE
- Where
- 14 nm south (160°) of RLG
- Time
- 01:42 UTC
- Height
- at 32,000 ft
- Aircraft
- B738
- Turbulence
- light to moderate below 30,000 ft
- Remarks
- during the climb ZDVWC-05
- LJ60 at 15,000 ft, 35 nm southwest, 6:28 pm MDT (00:28 UTC): light to moderate icing from 16,500 ft to 19,000 ft, -13 °C, remarks: during the descent zdvwc. At the departure end, 35 nm southwest of the line.
as filed, and in English
MTJ UA /OV MTJ030030/TM 0028/FL150/TP LJ60/TA M13/IC LGT-MOD 190-165/RM DURD ZDVWC
- Report
- a routine report filed through MTJ
- Where
- 30 nm northeast (030°) of MTJ
- Time
- 00:28 UTC
- Height
- at 15,000 ft
- Aircraft
- LJ60
- Temperature
- −13 °C
- Icing
- light to moderate from 19,000 ft to 16,500 ft
- Remarks
- during the descent zdvwc
- SW4 at 20,000 ft, 35 nm southwest, 7:00 pm MDT (01:00 UTC): light rime icing, 0 °C, remarks: ZDVWC-12. At the departure end, 35 nm southwest of the line.
as filed, and in English
GUC UA /OV GUC/TM 0100/FL200/TP SW4/TA 00/IC LGT RIME/RM ZDVWC-12
- Report
- a routine report filed through GUC
- Where
- over GUC
- Time
- 01:00 UTC
- Height
- at 20,000 ft
- Aircraft
- SW4
- Temperature
- 0 °C
- Icing
- light rime
- Remarks
- ZDVWC-12
- E55P at 38,000 ft, 45 nm northeast, 7:23 pm MDT (01:23 UTC): light chop turbulence, remarks: ZDVWC-05. 70 nm along the route, 45 nm northeast 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
- BE9L at 20,000 ft, 41 nm southwest, 6:34 pm MDT (00:34 UTC): light rime icing, -9 °C, remarks: ZDVWC-41. 80 nm along the route, 41 nm southwest of the line.
as filed, and in English
ALS UA /OV ALS330035/TM 0034/FL200/TP BE9L/TA M09/IC LGT RIME/RM ZDVWC-41
- Report
- a routine report filed through ALS
- Where
- 35 nm northwest (330°) of ALS
- Time
- 00:34 UTC
- Height
- at 20,000 ft
- Aircraft
- BE9L
- Temperature
- −9 °C
- Icing
- light rime
- Remarks
- ZDVWC-41
- B38M at 36,000 ft, 30 nm southwest, 8:22 pm MDT (02:22 UTC): light turbulence, remarks: mtw +/-200FT ZDVWC-30. 90 nm along the route, 30 nm southwest of the line.
as filed, and in English
ALS UA /OV ALS360035/TM 0222/FL360/TP B38M/TB LGT/RM MTW +/-200FT ZDVWC-30
- Report
- a routine report filed through ALS
- Where
- 35 nm north (360°) of ALS
- Time
- 02:22 UTC
- Height
- at 36,000 ft
- Aircraft
- B38M
- Turbulence
- light
- Remarks
- mtw +/-200FT ZDVWC-30
- B737 at 25,000 ft, 36 nm northeast, 6:29 pm MDT (00:29 UTC): light rime icing, 0 °C, remarks: during the climb ZDVWC-29. 90 nm along the route, 36 nm northeast of the line.
as filed, and in English
COS UA /OV BRK242015/TM 0029/FL250/TP B737/SK TOP280/TA 00/IC LGT RIME/RM DURC ZDVWC-29
- Report
- a routine report filed through COS
- Where
- 15 nm southwest (242°) of BRK
- Time
- 00:29 UTC
- Height
- at 25,000 ft
- Aircraft
- B737
- Sky
- TOP280
- Temperature
- 0 °C
- Icing
- light rime
- Remarks
- during the climb ZDVWC-29
- CL35 at 43,000 ft, 8 nm southwest, 6:21 pm MDT (00:21 UTC): remarks: mtw +/-300FT zdvwc. 100 nm along the route, 8 nm southwest of the line.
as filed, and in English
PUB UA /OV PUB250040/TM 0021/FL430/TP CL35/RM MTW +/-300FT ZDVWC
- Report
- a routine report filed through PUB
- Where
- 40 nm west (250°) of PUB
- Time
- 00:21 UTC
- Height
- at 43,000 ft
- Aircraft
- CL35
- Remarks
- mtw +/-300FT zdvwc
- A21N at 31,000 ft, 23 nm northeast, 6:24 pm MDT (00:24 UTC): remarks: mountain wave +/-10-20KT ZDVWC-29. 130 nm along the route, 23 nm northeast of the line.
as filed, and in English
PUB UA /OV PUB/TM 0024/FL310/TP A21N/RM MTN WAVE +/-10-20KT ZDVWC-29
- Report
- a routine report filed through PUB
- Where
- over PUB
- Time
- 00:24 UTC
- Height
- at 31,000 ft
- Aircraft
- A21N
- Remarks
- mountain wave +/-10-20KT ZDVWC-29
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 6 forecast points nearest it (ALS, PUB, AMA, GAG, SPS, DAL). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 5,500 ft | 210° at 33 kt | +3 kt | 19 °C | 117 kt | 5 h 12 min | 2:51 am CDT (07:51 UTC) |
| 7,500 ft | 220° at 28 kt | −3 kt | 14 °C | 123 kt | 4 h 57 min | 2:36 am CDT (07:36 UTC) |
| 9,500 ft | 230° at 26 kt | −5 kt | 12 °C | 125 kt | 4 h 52 min | 2:31 am CDT (07:31 UTC) |
| 11,500 ft | 230° at 27 kt | −8 kt | 8 °C | 128 kt | 4 h 45 min | 2:24 am CDT (07:24 UTC) |
| 13,500 ft | 230° at 28 kt | −7 kt | 4 °C | 127 kt | 4 h 48 min | 2:27 am CDT (07:27 UTC) |
| 15,500 ft | 230° at 29 kt | −5 kt | -1 °C | 125 kt | 4 h 52 min | 2:31 am CDT (07:31 UTC) |
| 17,500 ft | 220° at 31 kt | −4 kt | -5 °C | 124 kt | 4 h 55 min | 2:34 am CDT (07:34 UTC) |
| 18,000 ft FL180 | 220° at 31 kt | −3 kt | -6 °C | 123 kt | 4 h 57 min | 2:36 am CDT (07:36 UTC) |
| 24,000 ft FL240 | 240° at 38 kt | −12 kt | -19 °C | 132 kt | 4 h 37 min | 2:16 am CDT (07:16 UTC) |
| 30,000 ft FL300 | 240° at 61 kt | −28 kt | -28 °C | 148 kt | 4 h 07 min | 1:46 am CDT (06:46 UTC) |
| 34,000 ft FL340 | 250° at 56 kt | −30 kt | -36 °C | 150 kt | 4 h 04 min | 1:43 am CDT (06:43 UTC) |
| 39,000 ft FL390 | 250° at 47 kt | −29 kt | -48 °C | 149 kt | 4 h 05 min | 1:44 am CDT (06:44 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ALS | used from 0 nm out; 96 nm from the line | 230/37 4° | 220/54 -9° | 230/62 -22° | 240/77 -26° | 240/74 -33° | 230/59 -45° | |||
| PUB | used from 50 nm out; 52 nm from the line | 230/25 13° | 230/32 6° | 220/44 -8° | 230/49 -21° | 240/70 -28° | 240/67 -34° | 240/58 -46° | ||
| AMA | used from 250 nm out; 79 nm from the line | 210/38 | 230/29 14° | 240/29 7° | 220/27 -5° | 240/37 -18° | 240/66 -28° | 250/59 -37° | 260/47 -49° | |
| GAG | used from 399 nm out; 84 nm from the line | 220/40 19° | 230/28 14° | 240/23 8° | 230/21 -6° | 240/31 -19° | 250/66 -29° | 260/58 -38° | 260/47 -49° | |
| SPS | used from 449 nm out; 37 nm from the line | 200/39 | 220/28 17° | 230/27 12° | 240/15 9° | 250/15 -4° | 250/24 -15° | 260/45 -28° | 270/43 -39° | 280/45 -51° |
| DAL | used from 549 nm out; 44 nm from the line | 190/29 | 220/23 17° | 220/17 13° | 250/18 8° | 230/18 -5° | 240/18 -15° | 270/34 -29° | 280/33 -39° | 300/36 -51° |
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 |
|---|---|---|---|---|---|---|---|
| ASE Aspen, CO | departure | VFR Sky: scattered clouds at 6,000 feet, overcast at 7,500 feet Weather: light rain | calm | 10+ mi | 7,500 ft | 7,837 ft | 7:53 pm MDT (01:53 UTC) |
| AEJ Buena Vista, CO | 40 nm out, 3 nm southeast of the line | VFR Sky: a broken layer at 6,000 feet, overcast at 7,000 feet | from the southeast (140°) at 9 knots | 10+ mi | 6,000 ft | 7,950 ft | 02:35 UTC |
| PUB Pueblo, CO | 120 nm out, 21 nm northeast of the line, tower | VFR Sky: scattered clouds at 11,000 feet | from the west-southwest (250°) at 25 knots, gusting to 37 | 10+ mi | none | 4,729 ft | 01:53 UTC |
| TAD Trinidad, CO | 170 nm out, 25 nm southwest of the line | VFR | from the west-southwest (250°) at 13 knots | 10+ mi | none | 5,761 ft | 01:54 UTC |
| PPA Pampa, TX | 350 nm out, 5 nm south of the line | VFR | from the south (180°) at 14 knots, gusting to 18 | 10+ mi | none | 3,245 ft | 02:10 UTC |
| FDR Frederick, OK | 479 nm out, 3 nm north of the line | VFR | from the south-southeast (150°) at 10 knots | 10+ mi | none | 1,258 ft | 01:53 UTC |
| SPS Wichita Falls, TX | 509 nm out, 3 nm east of the line, tower | VFR | from the south-southeast (160°) at 10 knots | 10+ mi | none | 1,019 ft | 01:52 UTC |
| DTO Denton, TX | 589 nm out, 9 nm northeast of the line, tower | VFR | from the south-southeast (160°) at 6 knots | 10+ mi | none | 642 ft | 01:53 UTC |
| DFW Dallas-Fort Worth, TX | destination | VFR | from the south-southeast (150°) at 9 knots | 10+ mi | none | 606 ft | 8:53 pm CDT (01:53 UTC) |
The highest airport on this list sits at 7,950 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At DFW when you get there the forecast at the estimated arrival, 1:43 am CDT (06:43 UTC)
Wind from the south at 11 knots, visibility more than 6 miles, clear skies VFR
The whole forecast for DFW
- From Sun 8:00 pm CDT (01:00 UTC): wind from the south at 11 knots, visibility more than 6 miles, clear skies
- From Mon 10:00 am CDT (15:00 UTC): wind from the south at 12 knots, gusting to 23, visibility more than 6 miles, a few clouds at 20,000 feet
- From Mon 7:00 pm CDT (00:00 UTC): wind from the south at 10 knots, visibility more than 6 miles, a few clouds at 25,000 feet
The forecast for ASE, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind from the south at 10 knots, gusting to 24, visibility 6 miles, mist, scattered clouds at 5,000 feet, a broken layer at 9,000 feet
- At times between Sun 6:00 pm MDT (00:00 UTC) and 8:00 pm MDT (02:00 UTC): wind variable at 20 knots, gusting to 35, visibility 4 miles, light rain showers, a broken layer at 5,000 feet
- From Sun 8:00 pm MDT (02:00 UTC): wind from the south-southeast at 11 knots, gusting to 26, visibility more than 6 miles, low-level wind shear, scattered clouds at 4,500 feet, a broken layer at 7,000 feet
- 30% chance between Sun 8:00 pm MDT (02:00 UTC) and 11:00 pm MDT (05:00 UTC): visibility 4 miles, light rain showers, a broken layer at 4,500 feet
- From Mon 12:00 am MDT (06:00 UTC): wind from the south-southeast at 10 knots, gusting to 21, visibility more than 6 miles, low-level wind shear, a few clouds at 5,000 feet, scattered clouds at 13,000 feet
- From Mon 5:00 am MDT (11:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, a few clouds at 5,000 feet, scattered clouds at 12,000 feet
- From Mon 9:00 am MDT (15:00 UTC): wind from the south at 9 knots, visibility more than 6 miles, a few clouds at 4,500 feet, a few clouds at 20,000 feet
Temporary flight restrictions on the line or within 25 nm of it
- 6/8784 LAKE GEORGE, CO, Sunday, October 11, 2026 through Tuesday, October 13, 2026 UTC 24 nm from the route, 60 nm along the route · a hazard on the ground (fire-fighting, a chemical spill, rescue work) · until 13 October · ZDV
- 9/2934 DALLAS, TX 11 nm from the route, at the destination end · a VIP movement · ZFW
- 6/8646 Arlington, TX, Thursday, October 15, 2026 through Friday, October 16, 2026 UTC 8 nm from the route, at the destination end · drones kept away from a public gathering · starts Thursday 15 October · ZFW
Daylight
Sunset at ASE 6:33 pm MDT (00:33 UTC), at DFW 6:58 pm CDT (23:58 UTC) (civil twilight ends 7:23 pm CDT (00:23 UTC)). At 120 knots the arrival at DFW is before sunrise there (7:29 am CDT (12:29 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: Aspen-Pitkin County/Sardy Field, Dallas-Fort Worth International.