Jackson Hole Airport to Denver International JAC → DEN
353 nautical miles (406 statute miles) southeast on a straight line, true course 128°, about 115° magnetic at the departure end (variation 13E). At 120 knots that is 2 h 24 min at the quickest height in today's winds (39,000 ft, a 27-knot tailwind), arriving about 8:12 pm MDT (02:12 UTC), after sunset at the destination. Right now JAC is IFR, wind from the northwest (320°) at 4 knots; DEN is VFR, wind from the south (180°) at 13 knots, gusting to 22. 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: 3,210 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 4E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 78 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 first 245 nm of the route.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the first 88 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the whole route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the whole route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 264 nm of the route.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Over the route from 166 to 166 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 JAC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- urgent E545 at 6,000 ft, 18 nm southwest, 3:49 pm MDT (21:49 UTC): remarks: low-level wind shear + 5 knots fap runway 17L. At the destination end, 18 nm southwest of the line.
as filed, and in English
APA UUA /OV APA350002/TM 2149/FL060/TP E545/RM LLWS +/- 5 KT FAP RWY 17L
- Report
- an urgent report filed through APA
- Where
- 2 nm north (350°) of APA
- Time
- 21:49 UTC
- Height
- at 6,000 ft
- Aircraft
- E545
- Remarks
- low-level wind shear + 5 knots fap runway 17L
- B738 at 37,000 ft, 48 nm northeast, 3:10 pm MDT (21:10 UTC): moderate chop turbulence, remarks: mtw a 40-knot loss of airspeed zdvwc. 206 nm along the route, 48 nm northeast of the line.
as filed, and in English
LAR UA /OV MBW290020/TM 2110/FL370/TP B738/TB MOD CHOP/RM MTW +/-40KT ZDVWC
- Report
- a routine report filed through LAR
- Where
- 20 nm west (290°) of MBW
- Time
- 21:10 UTC
- Height
- at 37,000 ft
- Aircraft
- B738
- Turbulence
- moderate chop
- Remarks
- mtw a 40-knot loss of airspeed zdvwc
- A21N at 33,000 ft, 49 nm southwest, 4:35 pm MDT (22:35 UTC): moderate turbulence, remarks: mountain wave +25-30KTS. 235 nm along the route, 49 nm southwest of the line.
as filed, and in English
HDN UA /OV CHE/TM 2235/FL330/TP A21N/TB MOD/RM MTN WAVE +25-30KTS
- Report
- a routine report filed through HDN
- Where
- over CHE
- Time
- 22:35 UTC
- Height
- at 33,000 ft
- Aircraft
- A21N
- Turbulence
- moderate
- Remarks
- mountain wave +25-30KTS
- A319 at 22,000 ft, 6 nm north, 3:42 pm MDT (21:42 UTC): moderate chop turbulence, remarks: ZDVWC-13. 294 nm along the route, 6 nm north of the line.
as filed, and in English
BJC UA /OV BJC322047/TM 2142/FL220/TP A319/TB MOD CHOP/RM ZDVWC-13
- Report
- a routine report filed through BJC
- Where
- 47 nm northwest (322°) of BJC
- Time
- 21:42 UTC
- Height
- at 22,000 ft
- Aircraft
- A319
- Turbulence
- moderate chop
- Remarks
- ZDVWC-13
- BCS3 at 24,000 ft, 11 nm northeast, 5:28 pm MDT (23:28 UTC): moderate turbulence from 22,000 ft to 24,000 ft, remarks: during the descent. 313 nm along the route, 11 nm northeast 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
- GLF5 at 45,000 ft, 38 nm south, 4:44 pm MDT (22:44 UTC): moderate turbulence, remarks: ZDVWC-46. At the destination end, 38 nm south of the line.
as filed, and in English
COS UA /OV COS350025/TM 2244/FL450/TP GLF5/TB MOD /RM ZDVWC-46
- Report
- a routine report filed through COS
- Where
- 25 nm north (350°) of COS
- Time
- 22:44 UTC
- Height
- at 45,000 ft
- Aircraft
- GLF5
- Turbulence
- moderate
- Remarks
- ZDVWC-46
- A320 at 6,800 ft, 1 nm north, 4:08 pm MDT (22:08 UTC): scattered clouds above 6,800 ft; overcast above 8,000 ft. At the departure end, 1 nm north of the line.
as filed, and in English
JAC UA /OV JAC/TM 2208/FL068/TP A320/SK SCT068 OVC080
- Report
- a routine report filed through JAC
- Where
- over JAC
- Time
- 22:08 UTC
- Height
- at 6,800 ft
- Aircraft
- A320
- Sky
- SCT068 OVC080
- CRJ7 at 17,000 ft, 21 nm southwest, 5:03 pm MDT (23:03 UTC): light rime icing, -6 °C. 20 nm along the route, 21 nm southwest of the line.
as filed, and in English
JAC UA /OV JAC160030/TM 2303/FL170/TP CRJ7/TA M6/IC LGT RIME /ZLC
- Report
- a routine report filed through JAC
- Where
- 30 nm south (160°) of JAC
- Time
- 23:03 UTC
- Height
- at 17,000 ft
- Aircraft
- CRJ7
- Temperature
- −6 °C
- Icing
- light rime zlc
- A320 at 33,000 ft, 43 nm southwest, 4:24 pm MDT (22:24 UTC): light to moderate turbulence. 108 nm along the route, 43 nm southwest of the line.
as filed, and in English
RKS UA /OV OCS306029/TM 2224/FL330/TP A320/TB CONS LGT OCNL MOD /ZLC
- Report
- a routine report filed through RKS
- Where
- 29 nm northwest (306°) of OCS
- Time
- 22:24 UTC
- Height
- at 33,000 ft
- Aircraft
- A320
- Turbulence
- continuous light occasional moderate zlc
- B738 at 35,200 ft, 48 nm southwest, 2:56 pm MDT (20:56 UTC): remarks: mdt mountain wave a 10-knot loss of airspeed knots zlc. 137 nm along the route, 48 nm southwest of the line.
as filed, and in English
RKS UA /OV OCS/TM 2056/FL352/TP B738/RM MDT MTN WAVE +-10 KTS /ZLC
- Report
- a routine report filed through RKS
- Where
- over OCS
- Time
- 20:56 UTC
- Height
- at 35,200 ft
- Aircraft
- B738
- Remarks
- mdt mountain wave a 10-knot loss of airspeed knots zlc
- CRJ2 at 29,000 ft, 44 nm northeast, 4:37 pm MDT (22:37 UTC): light chop turbulence, remarks: ZDVWC-34. 235 nm along the route, 44 nm northeast of the line.
as filed, and in English
CYS UA /OV CYS286065/TM 2237/FL290/TP CRJ2/TB LGT CHOP/RM ZDVWC-34
- Report
- a routine report filed through CYS
- Where
- 65 nm west (286°) of CYS
- Time
- 22:37 UTC
- Height
- at 29,000 ft
- Aircraft
- CRJ2
- Turbulence
- light chop
- Remarks
- ZDVWC-34
- PC12 , 29 nm southwest, 4:33 pm MDT (22:33 UTC): remarks: ZDVWC-14. 235 nm along the route, 29 nm southwest of the line.
as filed, and in English
HDN UA /OV CHE030020/TM 2233/FLFL28/TP PC12/SK TOP280/RM ZDVWC-14
- Report
- a routine report filed through HDN
- Where
- 20 nm northeast (030°) of CHE
- Time
- 22:33 UTC
- Height
- at 2,800 ft
- Aircraft
- PC12
- Sky
- TOP280
- Remarks
- ZDVWC-14
- B39M at 28,000 ft, 49 nm southwest, 4:27 pm MDT (22:27 UTC): light turbulence, -30 °C, remarks: ZDVWC-14. 235 nm along the route, 49 nm southwest of the line.
as filed, and in English
HDN UA /OV CHE/TM 2227/FL280/TP B39M/TA M30/TB CONS LGT -OCNL MOD/IC T-LGT RIME/RM ZDVWC-14
- Report
- a routine report filed through HDN
- Where
- over CHE
- Time
- 22:27 UTC
- Height
- at 28,000 ft
- Aircraft
- B39M
- Temperature
- −30 °C
- Turbulence
- continuous light occasional moderate
- Icing
- t-lgt rime
- Remarks
- ZDVWC-14
- B737 at 35,000 ft, 47 nm southwest, 3:42 pm MDT (21:42 UTC): light turbulence, remarks: mtw a 15-knot gain of airspeed zdvwc. 284 nm along the route, 47 nm southwest of the line.
as filed, and in English
EGE UA /OV RLG/TM 2142/FL350/TP B737/TB LGT/RM MTW +15KT ZDVWC
- Report
- a routine report filed through EGE
- Where
- over RLG
- Time
- 21:42 UTC
- Height
- at 35,000 ft
- Aircraft
- B737
- Turbulence
- light
- Remarks
- mtw a 15-knot gain of airspeed zdvwc
11 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 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 3 forecast points nearest it (LND, RKS, DEN). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 7,500 ft | 190° at 35 kt | +19 kt | 13 °C | 101 kt | 3 h 30 min | 9:18 pm MDT (03:18 UTC) |
| 9,500 ft | 190° at 37 kt | +18 kt | 11 °C | 102 kt | 3 h 28 min | 9:16 pm MDT (03:16 UTC) |
| 11,500 ft | 200° at 46 kt | +15 kt | 6 °C | 105 kt | 3 h 22 min | 9:10 pm MDT (03:10 UTC) |
| 13,500 ft | 210° at 49 kt | +12 kt | 1 °C | 108 kt | 3 h 16 min | 9:04 pm MDT (03:04 UTC) |
| 15,500 ft | 210° at 50 kt | +7 kt | -3 °C | 113 kt | 3 h 07 min | 8:55 pm MDT (02:55 UTC) |
| 17,500 ft | 220° at 51 kt | +3 kt | -8 °C | 117 kt | 3 h 01 min | 8:49 pm MDT (02:49 UTC) |
| 18,000 ft FL180 | 220° at 52 kt | +2 kt | -9 °C | 118 kt | 2 h 59 min | 8:47 pm MDT (02:47 UTC) |
| 24,000 ft FL240 | 210° at 50 kt | +7 kt | -21 °C | 113 kt | 3 h 07 min | 8:55 pm MDT (02:55 UTC) |
| 30,000 ft FL300 | 210° at 44 kt | +5 kt | -33 °C | 115 kt | 3 h 04 min | 8:52 pm MDT (02:52 UTC) |
| 34,000 ft FL340 | 240° at 59 kt | −18 kt | -38 °C | 138 kt | 2 h 33 min | 8:21 pm MDT (02:21 UTC) |
| 39,000 ft FL390 | 240° at 67 kt | −27 kt | -47 °C | 147 kt | 2 h 24 min | 8:12 pm MDT (02:12 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LND | used from 0 nm out; 76 nm from the line | 180/33 10° | 190/50 3° | 210/59 -9° | 200/50 -21° | 190/41 -34° | 230/55 -39° | 240/65 -47° | ||
| RKS | used from 147 nm out; 63 nm from the line | 190/43 | 210/65 3° | 210/57 -9° | 210/56 -21° | 210/47 -33° | 230/63 -37° | 240/77 -46° | ||
| DEN | used from 245 nm out; 83 nm from the line | 190/31 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
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| JAC Jackson, WY | departure | IFR Sky: a broken layer at 700 feet, a broken layer at 4,200 feet, overcast at 6,000 feet Weather: rain, mist | from the northwest (320°) at 4 knots | 2 mi | 700 ft | 6,451 ft | 5:12 pm MDT (23:12 UTC) |
| PNA Pinedale, WY | 59 nm out, 14 nm southwest of the line | VFR Sky: scattered clouds at 12,000 feet | from the southeast (130°) at 11 knots, gusting to 16 | 10+ mi | none | 7,096 ft | 23:35 UTC |
| LND Lander, WY | 98 nm out, 17 nm northeast of the line | marginal VFR Sky: overcast at 1,000 feet Weather: light rain | from the north (350°) at 7 knots | 9 mi | 1,000 ft | 5,588 ft | 23:36 UTC |
| SAA Saratoga, WY | 215 nm out, 8 nm northeast of the line | VFR | from the south (190°) at 9 knots | 10+ mi | none | 7,014 ft | 23:30 UTC |
| BJC Denver, CO | 333 nm out, 12 nm southwest of the line, tower | VFR | from the northwest (320°) at 9 knots | 10+ mi | none | 5,673 ft | 22:45 UTC |
| DEN Denver, CO | destination | VFR Sky: a few clouds at 11,000 feet, scattered clouds at 14,000 feet, a broken layer at 22,000 feet | from the south (180°) at 13 knots, gusting to 22 | 10+ mi | 22,000 ft | 5,433 ft | 4:53 pm MDT (22:53 UTC) |
The highest airport on this list sits at 7,096 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, 8:12 pm MDT (02:12 UTC)
Wind from the southwest at 13 knots, gusting to 20, visibility more than 6 miles, a few clouds at 14,000 feet, scattered clouds at 22,000 feet VFR
The whole forecast for DEN
- From Sun 6:00 pm MDT (00:00 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 8:00 pm MDT (02:00 UTC): wind from the southwest at 13 knots, gusting to 20, 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 JAC, the departure
- From Sun 6:00 pm MDT (00:00 UTC): wind from the west at 7 knots, visibility 6 miles, light rain showers, scattered clouds at 700 feet, a broken layer at 1,200 feet and more above
- At times between Sun 6:00 pm MDT (00:00 UTC) and 9:00 pm MDT (03:00 UTC): visibility 3 miles, rain, a broken layer at 700 feet
- From Sun 9:00 pm MDT (03:00 UTC): wind from the north-northeast at 5 knots, visibility more than 6 miles, showers nearby, scattered clouds at 1,500 feet, overcast at 2,500 feet
- From Mon 7:00 am MDT (13:00 UTC): wind from the north-northeast at 5 knots, visibility 6 miles, light rain showers, scattered clouds at 1,000 feet, overcast at 1,800 feet
- From Mon 3:00 pm MDT (21:00 UTC): wind from the southwest at 4 knots, visibility more than 6 miles, scattered clouds at 2,500 feet, overcast at 5,000 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 JAC 6:44 pm MDT (00:44 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 after sunset there (6:25 pm MDT (00:25 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: Jackson Hole Airport, Denver International.
