Ontario International to Yampa Valley Airport ONT → HDN
628 nautical miles (722 statute miles) northeast on a straight line, true course 049°, about 037° magnetic at the departure end (variation 12E). At 120 knots that is 3 h 31 min at the quickest height in today's winds (34,000 ft, a 59-knot tailwind), arriving about 4:30 am MDT (10:30 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: 1 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 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 15,000 ft. Over the first 159 nm of the route.
- AIRMET TANGO 2W: moderate turbulence above 18,000 ft from 35,000 ft to 45,000 ft. Near the route, 90 nm along the route.
- AIRMET ZULU 2C: moderate icing up to 23,000 ft. Over the route from 169 to 518 nm out.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the last 458 nm of the route.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Near the route, 229 nm along the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 399 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 38,000 ft. Over the last 279 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 90 nm of the route.
- AIRMET TANGO 5W: strong surface winds (30 knots or more) (due to sustained surface winds greater than 30 knots). Near the route, at the destination end.
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 ONT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B38M at 3,000 ft, 5 nm east, 10:47 pm PDT (05:47 UTC): a broken layer from 2,900 ft to 8,000 ft, remarks: BASE030. At the departure end, 5 nm east of the line.
as filed, and in English
ONT UA /OV KONT080005/TM 0547/FL030/TP B38M/SK BKN029-TOP080/RM BASE030
- Report
- a routine report filed through ONT
- Where
- 5 nm east (080°) of KONT
- Time
- 05:47 UTC
- Height
- at 3,000 ft
- Aircraft
- B38M
- Sky
- a broken layer from 2,900 ft, tops 8,000 ft
- Remarks
- BASE030
- GLF5 at 3,500 ft, 45 nm west, 9:54 pm PDT (04:54 UTC): overcast above 3,600 ft. At the departure end, 45 nm west of the line.
as filed, and in English
VNY UA /OV VNY36006/TM 0454/FL035/TP GLF5/SK OVC036
- Report
- a routine report filed through VNY
- Where
- VNY36006
- Time
- 04:54 UTC
- Height
- at 3,500 ft
- Aircraft
- GLF5
- Sky
- overcast from 3,600 ft
- A321 at 3,300 ft, 7 nm south, 9:59 pm PDT (04:59 UTC): a broken layer above 3,300 ft, remarks: during the descent. At the departure end, 7 nm south of the line.
as filed, and in English
ONT UA /OV ONT078008/TM 0459/FL033/TP A321/SK BKN033-TOPUNKN/RM DURD
- Report
- a routine report filed through ONT
- Where
- 8 nm east (078°) of ONT
- Time
- 04:59 UTC
- Height
- at 3,300 ft
- Aircraft
- A321
- Sky
- a broken layer from 3,300 ft, tops unknown
- Remarks
- during the descent
- B38M at 4,500 ft, 8 nm southeast, 9:15 pm PDT (04:15 UTC): a broken layer above 4,500 ft, remarks: during the descent. At the departure end, 8 nm southeast of the line.
as filed, and in English
ONT UA /OV ONT078012/TM 0415/FL045/TP B38M/SK BKN045-TOPUNKN/RM DURD
- Report
- a routine report filed through ONT
- Where
- 12 nm east (078°) of ONT
- Time
- 04:15 UTC
- Height
- at 4,500 ft
- Aircraft
- B38M
- Sky
- a broken layer from 4,500 ft, tops unknown
- Remarks
- during the descent
- B737 at 14,500 ft, 7 nm north, 10:30 pm PDT (05:30 UTC): light turbulence. 159 nm along the route, 7 nm north of the line.
as filed, and in English
LAS UA /OV LAS155012/TM 0530/FL145/TP B737/TB LGT
- Report
- a routine report filed through LAS
- Where
- 12 nm southeast (155°) of LAS
- Time
- 05:30 UTC
- Height
- at 14,500 ft
- Aircraft
- B737
- Turbulence
- light
- B737 at 19,000 ft, 12 nm northwest, 10:45 pm PDT (05:45 UTC): light turbulence. 179 nm along the route, 12 nm northwest of the line.
as filed, and in English
LAS UA /OV LAS050012/TM 0545/FL190/TP B737/TB LGT
- Report
- a routine report filed through LAS
- Where
- 12 nm northeast (050°) of LAS
- Time
- 05:45 UTC
- Height
- at 19,000 ft
- Aircraft
- B737
- Turbulence
- light
- B38M at 14,000 ft, 3 nm southwest, 10:47 pm PDT (05:47 UTC): light rime icing, 6 °C. 209 nm along the route, 3 nm southwest of the line.
as filed, and in English
LAS UA /OV LAS059040/TM 0547/FL140/TP B38M/TA 06/IC LGT RIME
- Report
- a routine report filed through LAS
- Where
- 40 nm northeast (059°) of LAS
- Time
- 05:47 UTC
- Height
- at 14,000 ft
- Aircraft
- B38M
- Temperature
- 6 °C
- Icing
- light rime
- A321 at 31,000 ft, 7 nm north, 11:15 pm PDT (06:15 UTC): light to moderate chop turbulence, remarks: mountain wave zlc. 428 nm along the route, 7 nm north of the line.
as filed, and in English
CNY UA /OV HVE340015/TM 0615/FL310/TP A321/TB OCNL LGT-MOD CHOP /RM MTN WAVE /ZLC
- Report
- a routine report filed through CNY
- Where
- 15 nm north (340°) of HVE
- Time
- 06:15 UTC
- Height
- at 31,000 ft
- Aircraft
- A321
- Turbulence
- occasional light to moderate chop
- Remarks
- mountain wave zlc
- E170 at 4,800 ft, 32 nm southeast, 11:31 pm PDT (06:31 UTC): no turbulence, no icing, clear from 4,800 ft to 60,000 ft, remarks: during the descent rnav Y 11 lgjt zdvwc. 528 nm along the route, 32 nm southeast of the line.
as filed, and in English
GJT UA /OV GJT/TM 0631/FL048/TP E170/SK SKC/TB NEG/IC NEG/RM DURD RNAV Y 11 LGJT. ZDVWC
- Report
- a routine report filed through GJT
- Where
- over GJT
- Time
- 06:31 UTC
- Height
- at 4,800 ft
- Aircraft
- E170
- Sky
- clear
- Turbulence
- none
- Icing
- none
- Remarks
- during the descent rnav Y 11 lgjt zdvwc
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 4 forecast points nearest it (ONT, LAS, BCE, GJT). 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 | 210° at 30 kt | −27 kt | 7 °C | 147 kt | 4 h 16 min | 5:15 am MDT (11:15 UTC) |
| 9,500 ft | 210° at 30 kt | −28 kt | 5 °C | 148 kt | 4 h 15 min | 5:14 am MDT (11:14 UTC) |
| 11,500 ft | 220° at 30 kt | −30 kt | 0 °C | 150 kt | 4 h 11 min | 5:10 am MDT (11:10 UTC) |
| 13,500 ft | 220° at 35 kt | −34 kt | -4 °C | 154 kt | 4 h 05 min | 5:04 am MDT (11:04 UTC) |
| 15,500 ft | 220° at 39 kt | −38 kt | -8 °C | 158 kt | 3 h 58 min | 4:57 am MDT (10:57 UTC) |
| 17,500 ft | 210° at 44 kt | −42 kt | -12 °C | 162 kt | 3 h 53 min | 4:52 am MDT (10:52 UTC) |
| 18,000 ft FL180 | 210° at 46 kt | −43 kt | -13 °C | 163 kt | 3 h 51 min | 4:50 am MDT (10:50 UTC) |
| 24,000 ft FL240 | 220° at 57 kt | −55 kt | -21 °C | 175 kt | 3 h 35 min | 4:34 am MDT (10:34 UTC) |
| 30,000 ft FL300 | 220° at 58 kt | −57 kt | -29 °C | 177 kt | 3 h 33 min | 4:32 am MDT (10:32 UTC) |
| 34,000 ft FL340 | 220° at 60 kt | −59 kt | -34 °C | 179 kt | 3 h 31 min | 4:30 am MDT (10:30 UTC) |
| 39,000 ft FL390 | 220° at 54 kt | −52 kt | -44 °C | 172 kt | 3 h 39 min | 4:38 am MDT (10:38 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| ONT | used from 0 nm out; 25 nm from the line | 190/8 | 190/19 6° | 210/23 4° | 210/29 -3° | 210/47 -13° | 210/49 -19° | 220/47 -30° | 220/50 -36° | 220/55 -43° |
| LAS | used from 100 nm out; 48 nm from the line | 210/21 10° | 200/18 5° | 200/23 -2° | 210/49 -14° | 210/63 -21° | 220/58 -30° | 220/61 -35° | 210/56 -44° | |
| BCE | used from 249 nm out; 70 nm from the line | 220/27 -1° | 210/40 -13° | 220/54 -21° | 220/64 -30° | 220/64 -34° | 220/52 -44° | |||
| GJT | used from 448 nm out; 66 nm from the line | 210/43 7° | 230/45 1° | 220/49 -12° | 220/62 -22° | 220/59 -28° | 230/60 -33° | 220/55 -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
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| ONT Ontario, CA | departure | no report just now | 944 ft | ||||
| SBD San Bernardino, CA | 20 nm out, 11 nm south of the line, tower | no report just now | 1,159 ft | ||||
| HND Las Vegas, NV | 169 nm out, 10 nm northwest of the line, tower | no report just now | 2,491 ft | ||||
| AZC Colorado City, AZ | 279 nm out, 10 nm east of the line | no report just now | 4,873 ft | ||||
| BCE Bryce Canyon, UT | 349 nm out, 5 nm southwest of the line | no report just now | 7,589 ft | ||||
| HVE Hanksville, UT | 428 nm out, 7 nm south of the line | no report just now | 4,453 ft | ||||
| CNY Moab, UT | 468 nm out, 17 nm southeast of the line | no report just now | 4,579 ft | ||||
| EEO Meeker, CO | 588 nm out, 4 nm southeast of the line | no report just now | 6,415 ft | ||||
| HDN Hayden, CO | destination | no report just now | 6,606 ft |
The highest airport on this list sits at 7,589 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At HDN when you get there the forecast at the estimated arrival, 4:30 am MDT (10:30 UTC)
HDN has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the departure end · security · ZLA
- 6/8890 LAS VEGAS, NV, Tuesday, October 13, 2026 Local on the route, 149 nm along the route · a VIP movement · starts tomorrow · ZLA
- 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 16 nm from the route, 159 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
- 6/8808 Las Vegas, NV, Tuesday, October 13, 2026 Local 13 nm from the route, 169 nm along the route · security · starts tomorrow · ZLA
Daylight
Sunset at ONT 6:20 pm PDT (01:20 UTC), at HDN 6:32 pm MDT (00:32 UTC) (civil twilight ends 6:59 pm MDT (00:59 UTC)). At 120 knots the arrival at HDN is before sunrise there (7:16 am MDT (13:16 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: Ontario International, Yampa Valley Airport.