Ontario International Airport (KONT) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for Ontario International Airport in Ontario, CA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
Ontario International Airport (KONT) is one of the primary air-carrier airports serving Ontario, CA at 944 ft. KONT reports its own METAR and publishes a TAF, and broadcasts digital ATIS (D-ATIS) — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (08L, 08R, 26L, 26R) — longest 12,197 ft — are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KONT in the ATIS Alerts Telegram bot to get a message the moment the ATIS letter changes or the weather drops below your selected minimums.
Wind from the west-southwest (250°) at 9 kt, gusting 16 kt, visibility 10+ statute miles, a few clouds at 30,000 ft, temperature 31°C (87°F), altimeter 29.79 inHg. Conditions are Visual Flight Rules (VFR).
METAR KONT 290153Z 25009G16KT 10SM FEW300 31/15 A2979 RMK AO2 SLP071 T03060150 $
What changed at KONT?
Since the 0053Z (5:53 PM PDT) report — compared automatically against the latest METAR.
No significant changes since the 0053Z report — conditions are holding steady.
This is exactly what ATIS Alerts watches for you — get a Telegram message when KONT's ATIS or weather changes, free →
Current pilot readout for KONT
KONT is currently VFR with winds from 250° at 9 knots gusting 16, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 08L, about 3 knots. Density altitude is approximately 3,200 ft (field elevation 944 ft). Review the latest TAF below for forecast changes before departure.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Get KONT weather alerts in Telegram
Stop refreshing aviation weather manually. Track KONT in ATIS Alerts and get notified when the ATIS changes, the airport drops below VFR, or wind and ceiling conditions move closer to your minimums.
Track KONT free on TelegramD-ATIS
Digital Automatic Terminal Information Service — the live broadcast.
ONT ATIS INFO T 0153Z. 24009G16KT 10SM FEW300 31/15 A2979 (TWO NINER SEVEN NINER). ILS AND VIS APR IN USE, RY26L & RY26R. LNDG AND DEPG RY 26L AND RY 26R. NOTAMS... TAXIWAY SIERRA FIVE CLOSED. TAXIWAY SIERRA CLOSED BETWEEN TAXIWAY SIERRA 8 AND TAXIWAY WHISKEY. RY 26L IM OTS, RY 26R ALS OTS. RWY 26L RGL OTS. USE CAUTION FOR NUMEROUS BIRDS OBSERVED IN VICINITY OF ONT. PILOTS READBACK RWY ASSIGNMENTS AND HOLD SHORT INSTRUCTIONS. ...ADVS YOU HAVE INFO T.
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
Use this section to quickly compare current wind alignment across available runways at KONT. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 26LFAV | 10,200 ft | CON | 8 kt head | 3 kt left (g5) |
| 26R | 12,197 ft | CON | 8 kt head | 3 kt left (g5) |
| 08L | 12,197 ft | CON | 8 kt tail | 3 kt right (g5) |
| 08R | 10,200 ft | CON | 8 kt tail | 3 kt right (g5) |
Open the crosswind calculator — try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 9→9 kt, ceiling unlimited → unlimited.
KONT weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Ontario International Airport in Ontario, CA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KONT is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.
Recent aviation weather trends at KONT
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KONT reported mostly VFR across 24 observations, with 0 flight-category changes. The strongest gust reached 18 kt, the lowest ceiling was 30,000 ft. Wind most often came from the SW.
- 26L/26R
- 99%
- 08L/08R
- 1%
TAF — Terminal Aerodrome Forecast
Issued 2320Z (4:20 PM PDT)
TAF KONT 282320Z 2900/3006 25010G18KT P6SM SKC FM290300 25008KT P6SM SKC FM290600 VRB05KT P6SM SKC FM292000 26010G18KT P6SM SKC FM300300 26008KT P6SM SKC
New to TAFs? How to read one →
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Get free ATIS alerts for KONT
We'll message you on Telegram the moment KONT (Ontario International Airport)'s ATIS letter changes or it drops below VFR — so you check weather only when it actually matters.
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Nearby TFRs
Active FAA TFRs near KONT
FAA TFR data shows an active temporary flight restriction near KONT.
View all active US TFRs → · Official FAA TFR ↗
Verify with official FAA TFR sources before flight.
Airport facts
Reference data from the OurAirports dataset.
- Type
- Large airport
- ICAO
- KONT
- IATA
- ONT
- FAA LID
- ONT
- City
- Ontario
- State
- California
- Country
- United States
- Elevation
- 944 ft
- Coordinates
- 34.0560, -117.6010
- Runways
- 4
- Longest runway
- 12,197 ft
- Weather reporting
- METAR · D-ATIS
- TAF
- Published
- ATIS
- 124.25 MHz
- Time zone
- America/Los_Angeles
- Sunset in
- 49m
Run a flight school, FBO, or club here? Embed KONT's live status on your website — free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
8 airports+2 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.
- PVMAC - Pomona Valley Model Airplane Club Inc 1 — Chino, CA · 6 mi
- IERCC - Inland Empire Radio Control Club 1 — Riverside, CA · 9 mi
- PVMAC - Pomona Valley Model Airplane Club Inc 2 — Corona, CA · 9 mi
Historical Flying Weather
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KONT reported VFR conditions during about 83.5% of valid daylight observations, with an estimated 310 VFR flying days a year. August had the most VFR weather; May had the most instrument conditions. Surface winds averaged 5.1 kt, calm 25.7% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 86.3 | 10.6 | 2.2 | 0.9 |
| Feb | 82.8 | 13.6 | 3.0 | 0.6 |
| Mar | 83.0 | 13.3 | 3.1 | 0.6 |
| Apr | 82.6 | 14.8 | 2.4 | 0.2 |
| May | 73.9 | 22.0 | 3.9 | 0.1 |
| Jun | 76.8 | 19.9 | 3.3 | 0.0 |
| Jul | 89.3 | 9.2 | 1.5 | 0.1 |
| Aug | 89.8 | 8.8 | 1.4 | 0.1 |
| Sep | 87.0 | 11.4 | 1.5 | 0.2 |
| Oct | 84.0 | 12.3 | 2.8 | 0.9 |
| Nov | 85.0 | 11.0 | 2.6 | 1.3 |
| Dec | 84.3 | 11.0 | 3.6 | 1.2 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 4.4 kt |
| Feb | 4.5 kt |
| Mar | 5.1 kt |
| Apr | 5.8 kt |
| May | 6.3 kt |
| Jun | 6.0 kt |
| Jul | 5.9 kt |
| Aug | 5.5 kt |
| Sep | 5.0 kt |
| Oct | 4.6 kt |
| Nov | 3.9 kt |
| Dec | 3.7 kt |
Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KONT airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
The FAA airport diagram for Ontario International Airport in Ontario, CA shows the runway and taxiway layout across 4 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.
Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗
KONT weather — frequently asked
What runways are available at KONT?+
KONT has 4 runways — 08L, 08R, 26L, 26R; the longest is 12,197 ft. This page computes the live crosswind for each runway end from the current wind.
Does KONT report its own weather?+
Yes — Ontario International Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KONT have a TAF?+
Yes — the TAF is shown on this page below the current conditions.
Does KONT broadcast D-ATIS?+
Yes — KONT publishes digital ATIS, and the live broadcast text with its current information letter is shown on this page. The ATIS Alerts bot (@atisalerts_bot) can message you the moment the letter changes.
Where can I find the KONT airport diagram?+
The official FAA airport diagram for Ontario International Airport (KONT) is shown on this page — it maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).
Pilot PIREPs for Ontario International Airport (KONT)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Ontario International Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KONT yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only — not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
Why pilots use ATIS Alerts
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