Prescott Rgnl/Ernest A Love Field to Ontario International PRC → ONT
259 nautical miles (298 statute miles) west on a straight line, true course 264°, about 251° magnetic at the departure end (variation 13E). At 120 knots that is 2 h 27 min at the quickest height in today's winds (4,500 ft, a 14-knot headwind), arriving about 7:37 pm PDT (02:37 UTC), after sunset at the destination. Right now PRC is marginal VFR, wind from the south-southwest (200°) at 15 knots, gusting to 24; ONT is VFR, wind from the west-southwest (240°) at 9 knots, gusting to 16. 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 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 W69W: thunderstorms (a convective SIGMET) up to 34,000 ft, moving from the southwest at 40 knots, until 6:55 pm MST (01:55 UTC). Over the first 30 nm of the route.
as issued
WSUS33 KKCI 112355 MKCW WST 112355 CONVECTIVE SIGMET 69W VALID UNTIL 0155Z TX NM AZ FROM 50ENE PGS-60SE ABQ-20ENE ELP-70SSW SSO-50SE BZA-50ENE PGS AREA TS MOV FROM 23040KT. TOPS TO FL340.
- AIRMET SIERRA 2E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the first 60 nm of the route.
- AIRMET TANGO 4W: moderate turbulence below 18,000 ft up to 18,000 ft. Over the first 20 nm of the route.
- AIRMET SIERRA 1E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the first 70 nm of the route.
- AIRMET TANGO 4W: moderate turbulence above 18,000 ft from 18,000 ft to 36,000 ft. Over the route from 20 to 199 nm out.
- AIRMET ZULU 3C: moderate icing up to 22,000 ft. Over the route from 60 to 170 nm out.
- AIRMET TANGO 1W: moderate turbulence below 18,000 ft (due to mountain wave) up to 12,000 ft. Over the last 130 nm of the route.
- AIRMET SIERRA 6E: mountains obscured by cloud (due to mountains obscured by clouds, precipitation, mist). Over the last 40 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 PRC.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B737 at 14,000 ft, 19 nm north, 2:54 pm MST (21:54 UTC): moderate turbulence. At the destination end, 19 nm north of the line.
as filed, and in English
ONT UA /OV 20N ONT/TM 2154/FL140/TP B737/TB MOD
- Report
- a routine report filed through ONT
- Where
- 20N ont
- Time
- 21:54 UTC
- Height
- at 14,000 ft
- Aircraft
- B737
- Turbulence
- moderate
- B738 descending, 20 nm north, 2:37 pm MST (21:37 UTC): moderate chop turbulence. At the destination end, 20 nm north of the line.
as filed, and in English
ONT UA /OV ONT358021/TM 2137/FLDURD/TP B738/TB MODERATE CHOP STARTING AT 130
- Report
- a routine report filed through ONT
- Where
- 21 nm north (358°) of ONT
- Time
- 21:37 UTC
- Height
- during the descent
- Aircraft
- B738
- Turbulence
- moderate chop starting at at 13,000 ft
- B738 at 17,000 ft, 47 nm south, 4:54 pm MST (23:54 UTC): light rime icing, 9 °C, remarks: during the descent. At the departure end, 47 nm south of the line.
as filed, and in English
PHX UA /OV PXR330030/TM 2354/FL170/TP B738/TA 09/IC LGT RIME/RM DURD
- Report
- a routine report filed through PHX
- Where
- 30 nm northwest (330°) of PXR
- Time
- 23:54 UTC
- Height
- at 17,000 ft
- Aircraft
- B738
- Temperature
- 9 °C
- Icing
- light rime
- Remarks
- during the descent
- CRJ2 at 6,200 ft, 2 nm northeast, 2:51 pm MST (21:51 UTC): overcast above 6,200 ft, remarks: wind shear +10/-5 short final RY21L. At the departure end, 2 nm northeast of the line.
as filed, and in English
PRC UA /OV PRC030002/TM 2151/FL062/TP CRJ2/SK OVC062/RM WIND SHEAR +10/-5 SHORT FINAL RY21L
- Report
- a routine report filed through PRC
- Where
- 2 nm northeast (030°) of PRC
- Time
- 21:51 UTC
- Height
- at 6,200 ft
- Aircraft
- CRJ2
- Sky
- overcast from 6,200 ft
- Remarks
- wind shear +10/-5 short final RY21L
- BE20 at 15,000 ft, 45 nm north, 2:25 pm MST (21:25 UTC): light icing, -1 °C, remarks: zlawc. 110 nm along the route, 45 nm north of the line.
as filed, and in English
LAS UA /OV GFS070020/TM 2125/FL150/TP BE20/TA M01/IC LGT CLR/RM ZLAWC AWC-WEB
- Report
- a routine report filed through LAS
- Where
- 20 nm east (070°) of GFS
- Time
- 21:25 UTC
- Height
- at 15,000 ft
- Aircraft
- BE20
- Temperature
- −1 °C
- Icing
- light clear
- Remarks
- zlawc
- A21N at 29,500 ft, 49 nm north, 3:50 pm MST (22:50 UTC): remarks: mountain wave 10-15 kts/zlawc. 190 nm along the route, 49 nm north of the line.
as filed, and in English
DAG UA /OV DAG045010/TM 2250/FL295/TP A21N/RM MTN WAVE /- 10-15 KTS/ZLAWC AWC-WEB
- Report
- a routine report filed through DAG
- Where
- 10 nm northeast (045°) of DAG
- Time
- 22:50 UTC
- Height
- at 29,500 ft
- Aircraft
- A21N
- Remarks
- mountain wave 10-15 kts/zlawc
- E75S at 5,000 ft, 33 nm southwest, 5:00 pm MST (00:00 UTC): a routine report with nothing remarked on. At the destination end, 33 nm southwest of the line.
as filed, and in English
LGB UA /OV LGB180003/TM 0000/FL050/TP E75S/SK OVC43-TOP050
- Report
- a routine report filed through LGB
- Where
- 3 nm south (180°) of LGB
- Time
- 00:00 UTC
- Height
- at 5,000 ft
- Aircraft
- E75S
- Sky
- OVC43-TOP050
- B739 at 3,400 ft, 33 nm west, 4:55 pm MST (23:55 UTC): overcast above 5,400 ft, remarks: bases 3,500 ft. At the destination end, 33 nm west of the line.
as filed, and in English
KLAX UA /OV 10 E LAX/TM 2355/FL034/TP B739/SK OVC054/RM BASES 035
- Report
- a routine report filed through KLAX
- Where
- 10 east lax
- Time
- 23:55 UTC
- Height
- at 3,400 ft
- Aircraft
- B739
- Sky
- overcast from 5,400 ft
- Remarks
- bases 3,500 ft
- B739 at 33,000 ft, 29 nm north, 4:02 pm MST (23:02 UTC): remarks: mountain wave 10 knots zlawc. At the destination end, 29 nm north of the line.
as filed, and in English
DRA UA /OV VCV242015/TM 2302/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
- Report
- a routine report filed through DRA
- Where
- 15 nm southwest (242°) of VCV
- Time
- 23:02 UTC
- Height
- at 33,000 ft
- Aircraft
- B739
- Remarks
- mountain wave 10 knots zlawc
- B739 at 33,000 ft, 41 nm northwest, 4:01 pm MST (23:01 UTC): remarks: mountain wave 10 knots zlawc. At the destination end, 41 nm northwest of the line.
as filed, and in English
SDB UA /OV PMD/TM 2301/FL330/TP B739/RM MTN WAVE /- 10 KT /ZLAWC AWC-WEB
- Report
- a routine report filed through SDB
- Where
- over PMD
- Time
- 23:01 UTC
- Height
- at 33,000 ft
- Aircraft
- B739
- Remarks
- mountain wave 10 knots zlawc
- C172 at 1,400 ft, 37 nm southwest, 3:53 pm MST (22:53 UTC): remarks: base 3,400 ft. At the destination end, 37 nm southwest of the line.
as filed, and in English
TOA UA /OV 4 E KTOA/TM 2253/FL014/TP C172/RM BASE 034
- Report
- a routine report filed through TOA
- Where
- 4 east KTOA
- Time
- 22:53 UTC
- Height
- at 1,400 ft
- Aircraft
- C172
- Remarks
- base 3,400 ft
- B757 at 4,000 ft, 32 nm west, 3:38 pm MST (22:38 UTC): remarks: reduced visibility below the ceiling ILS25L. At the destination end, 32 nm west of the line.
as filed, and in English
LAX UA /OV LAX070010/TM 2238/FL040/TP B757/SK TOPS050 BASES040/RM REDUCED VISIBILITY BELOW THE CEILING. ILS25L
- Report
- a routine report filed through LAX
- Where
- 10 nm east (070°) of LAX
- Time
- 22:38 UTC
- Height
- at 4,000 ft
- Aircraft
- B757
- Sky
- TOPS050 BASES040
- Remarks
- reduced visibility below the ceiling ILS25L
- B737 at 4,000 ft, 41 nm west, 3:37 pm MST (22:37 UTC): a broken layer from 4,000 ft to 5,000 ft. At the destination end, 41 nm west of the line.
as filed, and in English
KLAX UA /OV KLAX/TM 2237/FL040/TP B737/SK BKN040-TOP050
- Report
- a routine report filed through KLAX
- Where
- over KLAX
- Time
- 22:37 UTC
- Height
- at 4,000 ft
- Aircraft
- B737
- Sky
- a broken layer from 4,000 ft, tops 5,000 ft
- B737 at 5,000 ft, 34 nm southwest, 3:30 pm MST (22:30 UTC): a broken layer from 3,300 ft to 5,000 ft. At the destination end, 34 nm southwest of the line.
as filed, and in English
LGB UA /OV KLGB180005/TM 2230/FL050/TP B737/SK BKN033-TOPS050
- Report
- a routine report filed through LGB
- Where
- 5 nm south (180°) of KLGB
- Time
- 22:30 UTC
- Height
- at 5,000 ft
- Aircraft
- B737
- Sky
- a broken layer from 3,300 ft, tops 5,000 ft
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 3 forecast points nearest it (PRC, BLH, ONT). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 220° at 20 kt | +14 kt | 106 kt | 2 h 27 min | 7:37 pm PDT (02:37 UTC) | |
| 6,500 ft | 210° at 22 kt | +14 kt | 9 °C | 106 kt | 2 h 27 min | 7:37 pm PDT (02:37 UTC) |
| 8,500 ft | 220° at 25 kt | +19 kt | 6 °C | 101 kt | 2 h 34 min | 7:44 pm PDT (02:44 UTC) |
| 10,500 ft | 220° at 28 kt | +22 kt | 2 °C | 98 kt | 2 h 39 min | 7:49 pm PDT (02:49 UTC) |
| 12,500 ft | 220° at 32 kt | +25 kt | -1 °C | 95 kt | 2 h 44 min | 7:54 pm PDT (02:54 UTC) |
| 14,500 ft | 220° at 36 kt | +27 kt | -4 °C | 93 kt | 2 h 47 min | 7:57 pm PDT (02:57 UTC) |
| 16,500 ft | 220° at 39 kt | +29 kt | -8 °C | 91 kt | 2 h 51 min | 8:01 pm PDT (03:01 UTC) |
| 18,000 ft FL180 | 220° at 42 kt | +30 kt | -10 °C | 90 kt | 2 h 53 min | 8:03 pm PDT (03:03 UTC) |
| 24,000 ft FL240 | 230° at 56 kt | +45 kt | -19 °C | 75 kt | 3 h 27 min | 8:37 pm PDT (03:37 UTC) |
| 30,000 ft FL300 | 220° at 57 kt | +42 kt | -28 °C | 78 kt | 3 h 19 min | 8:29 pm PDT (03:29 UTC) |
| 34,000 ft FL340 | 220° at 65 kt | +48 kt | -34 °C | 72 kt | 3 h 36 min | 8:46 pm PDT (03:46 UTC) |
| 39,000 ft FL390 | 220° at 57 kt | +42 kt | -45 °C | 78 kt | 3 h 19 min | 8:29 pm PDT (03:29 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PRC | used from 0 nm out; 25 nm from the line | 200/36 6° | 210/46 0° | 220/60 -10° | 220/75 -19° | 220/66 -26° | 230/70 -33° | 230/59 -45° | ||
| BLH | used from 50 nm out; 66 nm from the line | 230/22 | 210/24 11° | 230/23 5° | 230/26 0° | 220/38 -10° | 230/52 -19° | 220/58 -28° | 220/69 -34° | 220/59 -45° |
| ONT | used from 199 nm out; 35 nm from the line | 230/11 | 200/17 6° | 230/27 4° | 230/32 -2° | 210/39 -12° | 220/51 -20° | 220/48 -29° | 210/51 -34° | 210/52 -44° |
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 |
|---|---|---|---|---|---|---|---|
| PRC Prescott, AZ | departure | marginal VFR Sky: a broken layer at 2,600 feet | from the south-southwest (200°) at 15 knots, gusting to 24 | 10+ mi | 2,600 ft | 5,045 ft | 4:53 pm MST (23:53 UTC) |
| HII Lake Havasu City, AZ | 100 nm out, 8 nm northeast of the line | VFR Sky: scattered clouds at 4,500 feet, a broken layer at 5,000 feet, a broken layer at 10,000 feet | from the southeast (140°) at 9 knots, gusting to 16 | 10+ mi | 5,000 ft | 782 ft | 23:55 UTC |
| PSP Palm Springs, CA | 209 nm out, 22 nm south of the line, tower | VFR Sky: a few clouds at 5,500 feet | from the north-northwest (330°) at 7 knots | 10+ mi | none | 476 ft | 23:53 UTC |
| SBD San Bernardino, CA | 239 nm out, 2 nm southwest of the line, tower | VFR Sky: a broken layer at 3,800 feet, a broken layer at 4,800 feet, a broken layer at 6,000 feet | from the south (190°) at 6 knots | 10+ mi | 3,800 ft | 1,159 ft | 23:55 UTC |
| ONT Ontario, CA | destination | VFR Sky: a few clouds at 4,300 feet, scattered clouds at 5,500 feet, a broken layer at 12,000 feet | from the west-southwest (240°) at 9 knots, gusting to 16 | 10+ mi | 12,000 ft | 944 ft | 4:53 pm PDT (23:53 UTC) |
The highest airport on this list sits at 5,045 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At ONT when you get there the forecast at the estimated arrival, 7:37 pm PDT (02:37 UTC)
Wind from the southwest at 11 knots, gusting to 18, visibility more than 6 miles, a few clouds at 3,000 feet, a broken layer at 5,000 feet VFR
The whole forecast for ONT
- From Sun 5:00 pm PDT (00:00 UTC): wind from the southwest at 11 knots, gusting to 18, visibility more than 6 miles, a few clouds at 3,000 feet, a broken layer at 5,000 feet
- From Sun 11:00 pm PDT (06:00 UTC): wind from the west-southwest at 8 knots, visibility more than 6 miles, showers nearby, overcast at 2,500 feet
- From Mon 3:00 am PDT (10:00 UTC): wind from the west-southwest at 4 knots, visibility more than 6 miles, showers nearby, a few clouds at 2,500 feet, a broken layer at 5,000 feet
- From Mon 11:00 am PDT (18:00 UTC): wind from the west-southwest at 5 knots, visibility more than 6 miles, a broken layer at 5,000 feet
- From Mon 2:00 pm PDT (21:00 UTC): wind from the west-southwest at 11 knots, gusting to 18, visibility more than 6 miles, a broken layer at 5,000 feet
- From Mon 8:00 pm PDT (03:00 UTC): wind from the west-southwest at 9 knots, visibility more than 6 miles, a broken layer at 6,000 feet
The forecast for PRC, the departure
- From Sun 5:00 pm MST (00:00 UTC): wind from the south-southwest at 15 knots, gusting to 25, visibility 6 miles, light rain showers, overcast at 2,500 feet
- At times between Sun 5:00 pm MST (00:00 UTC) and 8:00 pm MST (03:00 UTC): visibility 4 miles, light rain, mist, a broken layer at 6,000 feet, overcast at 7,000 feet
- From Sun 8:00 pm MST (03:00 UTC): wind from the south at 10 knots, gusting to 20, visibility 6 miles, light rain showers, overcast at 1,500 feet
- From Mon 5:00 am MST (12:00 UTC): wind from the south at 10 knots, gusting to 18, visibility more than 6 miles, showers nearby, overcast at 5,000 feet
- From Mon 11:00 am MST (18:00 UTC): wind from the south-southwest at 12 knots, gusting to 25, visibility more than 6 miles, light rain showers, overcast at 3,000 feet
- 30% chance between Mon 11:00 am MST (18:00 UTC) and 3:00 pm MST (22:00 UTC): wind variable at 20 knots, gusting to 30, visibility 5 miles, light thunderstorms with rain, overcast at 1,500 feet (thunderheads)
Temporary flight restrictions on the line or within 25 nm of it
- 6/8891 Bullhead City, AZ, Wednesday, October 14, 2026 Local 13 nm from the route, 100 nm along the route · a VIP movement · starts Wednesday 14 October · ZLA
- 4/3635 DISNEYLAND THEME PARK, ANAHEIM,, CA 19 nm from the route, at the destination end · security · ZLA
Daylight
Sunset at PRC 5:59 pm MST (00:59 UTC), at ONT 6:20 pm PDT (01:20 UTC) (civil twilight ends 6:45 pm PDT (01:45 UTC)). At 120 knots the arrival at ONT is after sunset there (6:21 pm PDT (01:21 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: Prescott Rgnl/Ernest A Love Field, Ontario International.