ONT · Ontario, United States
Ontario International Airport.
--:--:-- · PDT (UTC-07:00) · 34.0560° N, 117.6010° W
Ontario International Airport
Airport in Ontario, California, United States
Verification trail
Source-backed facts for ONT
This section separates stable airport identifiers from live operating data. Codes, coordinates, timezone, elevation, source identifiers, and accepted reference links are retained here; live arrivals, departures, gates, delays, NOTAMs, and airline schedule changes must still be checked with the airport or carrier.
Airport catalog
OurAirports ID 3752; ident KONT; scheduled service listed.
Cached airports.csv snapshot: 2026-04-25; runways.csv snapshot: 2026-05-21.
Official airport source
flyontario.com
Used as the preferred live-reference handoff for terminals, gates, alerts, and airport notices.
Open sourceReference summary
Ontario International Airport
Airport-shaped reference summary from en.wikipedia.org; summary snapshot 2026-05-20.
Open sourceManual / derived signals
17 source-backed signals
Merged from OurAirports cached airports.csv, OurAirports cached runways.csv, Wikidata airport entity snapshot, airport-shaped Wikipedia summary snapshot; facts generated 2026-05-21.
IATA / ICAO
ONT / KONT
OurAirports ident
KONT
GPS / local code
KONT / ONT
ISO region
US-CA
Scheduled service
Listed in source snapshot
Role
international scheduled-service gateway
Official host
flyontario.com
Reference host
en.wikipedia.org
Wikidata entity
Q949831
Snapshot generated
2026-05-21
Airport lookup keys
Stable codes
Regional keys
Nearby airport codes
Route reference codes
Accepted citation URLs
Last updated May 21, 2026. Stable airport identifiers and timezone facts are content-reviewed; clocks render live in the browser, while weather and time-difference notes are page-snapshot aids rather than permanent airport records.
Live values rendered at Nov 5, 8:20 PM UTC.
What you need to know now
Local airport time
--:--:--PDT · UTC-07:00
Time zone
PDT
America/Los_Angeles · UTC-07:00
Airfield conditions
Live airport weather is temporarily unavailable.
Surface access
59 km
Approximate distance to central Ontario.
Airport Snapshot
Country capital
Washington, D.C.
Languages
English
Currency
USD ($)
Country area
9,525,067 km²
Passenger volume
Source note unavailable
Terminals
Not clearly stated
Runways
2 runways
Longest runway
12,197 ft / 3,718 m
Runway surface
concrete (2)
Opened / operator
1949
Owner / entity
Q949831
Hub airlines
Mixed or not clearly stated
Airport role
international scheduled-service gateway
Scheduled service
Listed
Fact coverage
17 source-backed signals
Ontario International Airport is a international scheduled-service gateway for Ontario, United States. Ontario's built-up core sits roughly 59 km from the terminal area. Operations run on America/Los_Angeles (UTC-07:00, PDT). Live weather is temporarily unavailable. With 5 other indexable airports in its surrounding network, it works well as a reference point for regional flight planning and timezone checks.
Ontario International Airport (ONT / KONT) is at 34.0560° N, 117.6010° W, elevation 944 ft (288 m), serving Ontario, United States.
The accepted reference summary is used as supporting context for the airport identity and operating notes; the timed facts here still come from the airport catalog, timezone database, country snapshot, and linked source trail.
Ontario is in United States (capital Washington, D.C.); regulated by Federal Aviation Administration (FAA); on America/Los_Angeles (PDT, UTC-07:00); working languages: English; currency: USD ($).
Distance from central Ontario: 59 km.
Airport context brief
A compact traveler-facing brief from the airport catalog, country snapshot, route geometry, city anchors, peer airports, and source trail for ONT.
Name and identity cues
Primary airport name
Ontario International Airport (ONT / KONT)
Ontario International Airport · Airport in Ontario, California, United States
Source identifiers
KONT · KONT · ONT · US-CA
flyontario.com · en.wikipedia.org · scheduled service yes
Closest mapped city anchors
1. Ontario
ontario · 4.7 km from ONT
United States · America/Los_Angeles · +0h · population 171,214 · city coordinates 34.0633, -117.6509
2. Rancho Cucamonga
rancho-cucamonga · 5.7 km from ONT
United States · America/Los_Angeles · +0h · population 175,236 · city coordinates 34.1064, -117.5931
3. Upland
upland · 6.4 km from ONT
United States · America/Los_Angeles · +0h · population 76,443 · city coordinates 34.0975, -117.6484
4. Montclair
montclair-5374232 · 8.5 km from ONT
United States · America/Los_Angeles · +0h · population 38,690 · city coordinates 34.0775, -117.6898
5. Chino
chino · 9.5 km from ONT
United States · America/Los_Angeles · +0h · population 85,595 · city coordinates 34.0122, -117.6889
6. Jurupa Valley
jurupa-valley · 11 km from ONT
United States · America/Los_Angeles · +0h · population 21,930 · city coordinates 33.9925, -117.5164
Airport alternatives in the retained graph
1. SBD KSBD
San Bernardino International Airport · San Bernardino
34 km from ONT · America/Los_Angeles · +0h · elevation 1,159 ft (353 m) · airport coordinates 34.0967, -117.2366
2. SNA KSNA
John Wayne Orange County International Airport · Santa Ana
49 km from ONT · America/Los_Angeles · +0h · elevation 56 ft (17 m) · airport coordinates 33.6751, -117.8693
3. LGB KLGB
Long Beach International Airport · Long Beach
57 km from ONT · America/Los_Angeles · +0h · elevation 60 ft (18 m) · airport coordinates 33.8165, -118.1499
4. BUR KBUR
Hollywood Burbank/Bob Hope Airport · Burbank
72 km from ONT · America/Los_Angeles · +0h · elevation 778 ft (237 m) · airport coordinates 34.2028, -118.3581
5. LAX KLAX
Los Angeles International Airport · Los Angeles
75 km from ONT · America/Los_Angeles · +0h · elevation 125 ft (38 m) · airport coordinates 33.9425, -118.4080
Route-time reference set
1. ONT-LGB
Long Beach · 57 km · 54m
America/Los_Angeles · +0h from ONT; reference route only, not a live schedule.
2. ONT-BUR
Burbank · 72 km · 55m
America/Los_Angeles · +0h from ONT; reference route only, not a live schedule.
3. ONT-LAX
Los Angeles · 75 km · 56m
America/Los_Angeles · +0h from ONT; reference route only, not a live schedule.
Runway source evidence
Published runway count
2 runways
Longest runway 12,197 ft / 3,718 m. 2 lighted runways in the runway snapshot.
Runway surface mix
concrete (2)
Surface labels are normalized from the OurAirports runway rows for ONT.
Runway identifiers
08L/26R · 08R/26L
Identifier pairs are retained as airport-specific runway cues, not live operational availability claims.
Same-country airport context
1. SBD KSBD
San Bernardino International Airport · San Bernardino · 34 km from ONT
large airport · America/Los_Angeles · united-states · 1,159 ft (353 m) · 34.0967, -117.2366
2. SNA KSNA
John Wayne Orange County International Airport · Santa Ana · 49 km from ONT
large airport · America/Los_Angeles · united-states · 56 ft (17 m) · 33.6751, -117.8693
3. LGB KLGB
Long Beach International Airport · Long Beach · 57 km from ONT
large airport · America/Los_Angeles · united-states · 60 ft (18 m) · 33.8165, -118.1499
4. BUR KBUR
Hollywood Burbank/Bob Hope Airport · Burbank · 72 km from ONT
large airport · America/Los_Angeles · united-states · 778 ft (237 m) · 34.2028, -118.3581
5. LAX KLAX
Los Angeles International Airport · Los Angeles · 75 km from ONT
large airport · America/Los_Angeles · united-states · 125 ft (38 m) · 33.9425, -118.4080
6. PSP KPSP
Palm Springs International Airport · Palm Springs · 104 km from ONT
large airport · America/Los_Angeles · united-states · 477 ft (145 m) · 33.8297, -116.5070
Country and authority
ONT sits in United States (United States of America), whose capital is Washington, D.C.. Federal Aviation Administration (FAA) is the national civil-aviation authority we name for regulator context. Country context: Americas, North America.
Traveler context
Common country-language signals: English. Currency context: USD ($). ONT is listed with scheduled service in the airport source snapshot.
Reference description
Airport in Ontario, California, United States. This description is used only as identity context; live flight status, terminal assignment, and airport alerts still belong to the official airport or airline source.
Entity fingerprint
Wikidata airport entity: Q949831 · Ontario International Airport. Administrative area: California. Named after: Ontario. Entity official-site cross-check: lawa.org
Field and clock profile
Ontario International Airport is a low-elevation field at 944 ft (288 m), positioned at 34.0560° N, 117.6010° W in the Northern subtropics. The runway snapshot lists 2 runways and a longest runway of 12,197 ft / 3,718 m. The airport clock uses America/Los_Angeles (PDT, UTC-07:00), so cross-date arrivals should be checked against this zone rather than the airline origin city.
City and airport alternatives
Ontario is the closest retained city-time anchor at 4.7 km. SBD San Bernardino is the closest retained airport alternative at 34 km.
Country airport peers
ONT is compared with SBD San Bernardino at 34 km, SNA Santa Ana at 49 km, LGB Long Beach at 57 km, BUR Burbank at 72 km, LAX Los Angeles at 75 km inside the retained United States airport set, which is useful when backup airports share the same country context but differ by city, route network, and clock behavior.
Route geometry
ONT-LGB Long Beach: 57 km, about 54m, +0h. ONT-BUR Burbank: 72 km, about 55m, +0h. ONT-LAX Los Angeles: 75 km, about 56m, +0h. These are distance and timezone references, not live flight availability claims.
Source trail
OurAirports ident KONT backs the stable code, coordinate, elevation, and timezone record. flyontario.com is attached as the official airport website. en.wikipedia.org is used only as supporting reference context. Snapshot date: 2026-05-21.
Operational Profile
Traffic profile
Reference airport
Airline role
Mixed commercial service
Terminal footprint
See operational notes
Runway footprint
2 runways · longest 12,197 ft / 3,718 m
Runway identifiers
08L/26R, 08R/26L
OurAirports classifies ONT as a large airport with scheduled service; the airport name and codes identify it as an international gateway for Ontario.
ONT (KONT) is a low-elevation field at 944 ft (288 m) in the subtropics, kept in the curated set for its route, timezone, and market-planning value.
ONT sits in a broader regional network with 5 nearby curated alternatives, so airline choice and connection strategy are part of the planning story here.
ONT's runway record lists 2 runways, with the longest runway at 12,197 ft / 3,718 m and source surfaces recorded as concrete (2).
Civil aviation oversight for ONT runs through Federal Aviation Administration (FAA); a more specific operator record is not currently in our source set.
These operational notes prefer the structured airport facts snapshot, then fall back to the accepted airport reference at flyontario.com, then blend that with local timezone, route, and city-access data already on this page.
Decision matrix for ONT
These are the specific situations where this airport page earns its keep: time-zone conversion, city transfer planning, nearby airport backup logic, and source-confidence checks before acting.
When the clock matters
ONT uses America/Los_Angeles (PDT, UTC-07:00). Use this before overnight arrivals, cross-date departures, and same-day connections.
When surface access matters
Ontario International Airport is about 59 km from central Ontario; build that transfer into arrival and check-in planning.
When alternates matter
SBD San Bernardino is the closest retained alternate at 34 km, time difference +0h.
When source checks matter
flyontario.com is listed as the official airport website in the airport facts snapshot; live schedules, gates, routes, terminals, and NOTAM-sensitive operations still need official airport or airline verification.
How this airport compares nearby
These comparisons place ONT inside the retained airport graph by country, timezone, elevation, and coordinate neighbors. They are deterministic dataset facts, not generated flight claims.
Country-rank position
ONT ranks #58 in the curated United States airport set when large airports are listed before medium airports, then sorted by IATA code. The retained country set has 94 airports.
Same-zone airport cohort
ONT shares America/Los_Angeles with BUR Burbank US · FAT Fresno US · GEG Spokane US · LAS Las Vegas US · LAX Los Angeles US · LGB Long Beach US. This helps separate same-clock airports by city, country, code, and geography.
Elevation-neighbor cohort
ONT is 944 ft (288 m). Closest elevation peers in the retained airport set include KMS 942 ft (287 m) (2 ft delta) · DSM 958 ft (292 m) (14 ft delta) · GSO 925 ft (282 m) (19 ft delta) · NDJ 968 ft (295 m) (24 ft delta) · TYS 981 ft (299 m) (37 ft delta).
Coordinate-neighbor check
ONT's nearest retained coordinate neighbors are SBD 34 km +0h · SNA 49 km +0h · LGB 57 km +0h · BUR 72 km +0h.
Flight Path Arc
Great-circle route between airports with animated plane. Pick a route.
Arriving From / Departing To
| Destination | Route code | Distance | Estimated window | Time difference | Destination clock |
|---|---|---|---|---|---|
| Long Beach | LGB | 57 km | 54m | +0h | --:--:-- |
| Burbank | BUR | 72 km | 55m | +0h | --:--:-- |
| Los Angeles | LAX | 75 km | 56m | +0h | --:--:-- |
ONT to LGB
Long Beach
Distance 57 km; estimated travel window 54m; destination zone America/Los_Angeles is +0h from ONT. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
ONT to BUR
Burbank
Distance 72 km; estimated travel window 55m; destination zone America/Los_Angeles is +0h from ONT. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
ONT to LAX
Los Angeles
Distance 75 km; estimated travel window 56m; destination zone America/Los_Angeles is +0h from ONT. Use the live destination clock on this page as a cross-timezone planning cue, not as a live flight schedule.
Airport Details
Timezone
Ground Transport and Nearby Context
Because the airport sits well outside central Ontario, surface transfer planning matters almost as much as flight timing, especially for late arrivals and early departures.
Los Angeles is the nearest mapped city anchor in the current dataset, which makes it the cleanest companion page when travelers want to switch from airport timing into local city timing.
Ontario International Airport has 5 nearby indexed airport alternatives, which makes backup departures and diversion logic part of real planning instead of a theoretical edge case.
Nearby city time anchors
Airport pages are most useful when they bridge into real city clocks. These city anchors are ranked by distance from ONT, then shown with their own timezone, local time, and time difference from the airport clock.
Ontario
ontario · 4.7 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Rancho Cucamonga
rancho-cucamonga · 5.7 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Upland
upland · 6.4 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Montclair
montclair-5374232 · 8.5 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Chino
chino · 9.5 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Jurupa Valley
jurupa-valley · 11 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Eastvale
eastvale · 11 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Glen Avon
glen-avon · 12 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Claremont
claremont · 12 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Pomona
pomona · 14 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Norco
norco · 15 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Fontana
fontana · 16 km · America/Los_Angeles
- Local time
- --:--:--
- Diff
- +0h
Airlines and Network Role
Ontario International Airport does not have a long carrier list in the current source trail, so this page emphasizes the durable pieces travelers can safely use here: local time, field identifiers, nearby airports, and timezone differences.
The route timing references show the first cross-timezone planning burden after this airport: Long Beach (LGB), Burbank (BUR), Los Angeles (LAX). Treat them as distance and clock cues, then verify flight availability with the carrier.
Planning checkpoints
- Traffic signal: not clearly stated in the source trail.
- Terminal footprint: not clearly stated in the source trail.
- Runway footprint: 2 runways; longest runway 12,197 ft / 3,718 m; identifiers 08L/26R, 08R/26L.
- Runway surfaces: concrete (2); 2 lighted runways in the source snapshot.
- Operator / management: not clearly stated in the source trail.
- Opened / inaugurated: 1949.
- Network role: mixed or not clearly stated in the source trail.
Nearby Airports
Nearby airports are ranked by coordinate distance from ONT. The time difference column is computed from IANA zones against the page snapshot, while the local clocks update in the browser.
San Bernardino International AirportSBD
San Bernardino · large airport
- Distance
- 34 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 1,159 ft (353 m)
Compare against SBD when route choice, backup departures, or arrival-side local time matters.
John Wayne Orange County International AirportSNA
Santa Ana · large airport
- Distance
- 49 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 56 ft (17 m)
Compare against SNA when route choice, backup departures, or arrival-side local time matters.
Long Beach International AirportLGB
Long Beach · large airport
- Distance
- 57 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 60 ft (18 m)
Compare against LGB when route choice, backup departures, or arrival-side local time matters.
Hollywood Burbank/Bob Hope AirportBUR
Burbank · large airport
- Distance
- 72 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 778 ft (237 m)
Compare against BUR when route choice, backup departures, or arrival-side local time matters.
Los Angeles International AirportLAX
Los Angeles · large airport
- Distance
- 75 km
- Local time
- --:--:--
- Time diff
- +0h
- Elevation
- 125 ft (38 m)
Compare against LAX when route choice, backup departures, or arrival-side local time matters.
Companion Planning Tools
Questions
FAQ
What timezone is Ontario International Airport (ONT) in?▾
Ontario International Airport is in the America/Los_Angeles timezone (UTC-07:00, PDT).
What are the codes for Ontario International Airport?▾
Ontario International Airport uses IATA code ONT and ICAO code KONT.
Where is Ontario International Airport located?▾
Ontario International Airport is located in Ontario, United States at coordinates 34.0560° N, 117.6010° W, with an elevation of 944 ft (288 m) (low-elevation field in the subtropics).
How far is Ontario International Airport from central Ontario?▾
Ontario International Airport sits roughly 59 km from the nearest mapped city center for Ontario.
Which route reference is most useful from ONT?▾
Long Beach (LGB) is one of the closest route references on this page, with an estimated travel window of 54m, destination timezone America/Los_Angeles, and a +0h difference from ONT.
Which authority regulates ONT?▾
Ontario International Airport sits inside United States, where civil aviation oversight is led by the Federal Aviation Administration (FAA).
What other airports in United States are close peers to ONT?▾
ONT's curated peers in United States on this site include SBD San Bernardino, SNA Santa Ana, LGB Long Beach, plus 3 more.
How many runways does Ontario International Airport have?▾
Ontario International Airport's source-backed operational summary lists 2 runways, with the longest runway recorded at 12,197 ft / 3,718 m; identifiers include 08L/26R, 08R/26L.