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Flights to Ontario, California

Find cheap flights to Ontario, California in 2025/2026 from $1,295 This is the cheapest return flight found to Ontario, California from Australia on FlightsFinder on May 12th 2025 at 06:28. This offer may no longer be available. Click the offer to check live prices & dates of travel.

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Our Flight Finder compares the cheapest flights to Ontario, California from the most established flight comparison sites.
Fly to Ontario, California and visit sites like Planes of Fame Air Museum, Cucamonga-Guasti Regional Park, Jurupa Mountains Discovery Center & Yanks Air Museum.

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What are the cheapest return flights to Ontario, California in 2025/2026?

These economy flights were found on FlightsFinder from Australia to Ontario, California in the last few days. Prices subject to availability.

What are the cheapest one-way flights to Ontario, California in 2025/2026?

These economy flights were found on FlightsFinder from Australia to Ontario, California in the last few days. Prices subject to availability.

When are flights to Ontario, California cheapest?

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The month of November

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According to our data, November is on average the cheapest time to book flights to Ontario, California.
You can get flights from $1,295 return.

When is the most expensive time to fly to Ontario, California?

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The month of May

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According to our data, May is on average the most expensive time to book flights to Ontario, California.
A return flight could set you back more than $1,682.

Why fly to Ontario, California?

Located in Southern California, Ontario is a vibrant city known for its diverse culture, rich history, and flourishing economy. With its proximity to major attractions such as the Ontario Mills shopping mall and the Toyota Arena, Ontario offers a perfect blend of urban excitement and natural beauty. The city boasts a range of outdoor recreational activities, including hiking in the nearby Mount Baldy and exploring the picturesque Cucamonga Wilderness. Whether you're a food enthusiast, outdoor adventurer, or history buff, Ontario has something to offer everyone, making it a truly dynamic destination worth exploring.

Frequently asked questions about Flights to Ontario, California

What is considered a good price to Ontario, California?

Which popular airports are close to Ontario, California?

How long does it take to fly to Ontario, California?

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Are there direct flights to Ontario, California?

What is the weather like in Ontario, California?

How far is the main airport in Ontario, California from the city centre?

How far in advance should I book my flight to Ontario, California?

Which day is cheapest to fly to Ontario, California?

Weather in Ontario, California

Clouds
Clouds

22.5 °C

Mon, 12 May 2025

Average Temperature

18°C

Jan

19°C

Feb

21°C

Mar

23°C

Apr

26°C

May

30°C

Jun

33°C

Jul

34°C

Aug

32°C

Sep

27°C

Oct

23°C

Nov

19°C

Dec

Ontario, California

Flight Distance and Flying Time to Ontario, California

Sydney, Australia - Kingsford Smith Airport (SYD) to Ontario, California (ONT)

Distance:
7,539 miles (12,132 kilometres)

Average flight time (direct 17 hours 15 minutes)

Brisbane, Australia - Brisbane International Airport (BNE) to Ontario, California (ONT)

Distance:
7,212 miles (11,607 kilometres)

Average flight time (direct 16 hours 31 minutes)

Melbourne, Australia - All Airports (MEL) to Ontario, California (ONT)

Distance:
7,971 miles (12,829 kilometres)

Average flight time (direct 18 hours 12 minutes)

Perth, Australia - Perth International Airport (PER) to Ontario, California (ONT)

Distance:
9,365 miles (15,072 kilometres)

Average flight time (direct 21 hours 18 minutes)

Cairns, Australia - Cairns International Airport (CNS) to Ontario, California (ONT)

Distance:
7,237 miles (11,646 kilometres)

Average flight time (direct 16 hours 34 minutes)

Adelaide, Australia - Adelaide International Airport (ADL) to Ontario, California (ONT)

Distance:
8,216 miles (13,223 kilometres)

Average flight time (direct 18 hours 45 minutes)

Darwin, Australia - Darwin International Airport (DRW) to Ontario, California (ONT)

Distance:
7,922 miles (12,750 kilometres)

Average flight time (direct 18 hours 6 minutes)

Gold Coast, Australia - Coolangatta Airport (OOL) to Ontario, California (ONT)

Distance:
7,220 miles (11,619 kilometres)

Average flight time (direct 16 hours 32 minutes)

Townsville, Australia - Townsville International Airport (TSV) to Ontario, California (ONT)

Distance:
7,266 miles (11,693 kilometres)

Average flight time (direct 16 hours 38 minutes)

Mount Isa, Australia - Mount Isa Airport (ISA) to Ontario, California (ONT)

Distance:
7,722 miles (12,428 kilometres)

Average flight time (direct 17 hours 39 minutes)

Kununurra, Australia - Kununurra Airport (KNX) to Ontario, California (ONT)

Distance:
8,167 miles (13,144 kilometres)

Average flight time (direct 18 hours 38 minutes)

Newcastle, Australia - Williamtown Metropolitan Area Airport (NTL) to Ontario, California (ONT)

Distance:
7,467 miles (12,017 kilometres)

Average flight time (direct 17 hours 5 minutes)

Mackay, Australia - Mackay Airport (MKY) to Ontario, California (ONT)

Distance:
7,201 miles (11,589 kilometres)

Average flight time (direct 16 hours 30 minutes)

Hobart, Australia - Hobart International Airport (HBA) to Ontario, California (ONT)

Distance:
7,989 miles (12,857 kilometres)

Average flight time (direct 18 hours 15 minutes)

Launceston, Australia - Launceston Airport (LST) to Ontario, California (ONT)

Distance:
7,967 miles (12,821 kilometres)

Average flight time (direct 18 hours 12 minutes)

Cloncurry, Australia - Cloncurry Airport (CNJ) to Ontario, California (ONT)

Distance:
7,665 miles (12,336 kilometres)

Average flight time (direct 17 hours 32 minutes)

Paraburdoo, Australia - Paraburdoo Airport (PBO) to Ontario, California (ONT)

Distance:
9,038 miles (14,544 kilometres)

Average flight time (direct 20 hours 35 minutes)

Karratha, Australia - Karratha Airport (KTA) to Ontario, California (ONT)

Distance:
9,017 miles (14,511 kilometres)

Average flight time (direct 20 hours 32 minutes)

Kalgoorlie-Boulder, Australia - Kalgoorlie-Boulder Airport (KGI) to Ontario, California (ONT)

Distance:
9,033 miles (14,537 kilometres)

Average flight time (direct 20 hours 34 minutes)

Learmonth, Australia - Learmonth Airport (LEA) to Ontario, California (ONT)

Distance:
9,218 miles (14,835 kilometres)

Average flight time (direct 20 hours 59 minutes)

Port Macquarie, Australia - Port Macquarie Airport (PQQ) to Ontario, California (ONT)

Distance:
7,368 miles (11,858 kilometres)

Average flight time (direct 16 hours 52 minutes)

Port Hedland, Australia - Port Hedland International Airport (PHE) to Ontario, California (ONT)

Distance:
8,900 miles (14,323 kilometres)

Average flight time (direct 20 hours 16 minutes)

Canberra, Australia - Canberra Airport (CBR) to Ontario, California (ONT)

Distance:
7,682 miles (12,364 kilometres)

Average flight time (direct 17 hours 34 minutes)

Map of Ontario, California

Travel Videos About Ontario, California

Cheapest flight routes found to Ontario, California

From Sydney

From Sydney (SYD), Australia to Ontario, United States (ONT): $1,295

Depart: 08 Nov 2025 · Return: 29 Nov 2025 Price found 12 May 2025, 06:28

From Brisbane

From Brisbane (BNE), Australia to Ontario, United States (ONT): $1,359

Depart: 08 Nov 2025 · Return: 22 Nov 2025 Price found 12 May 2025, 07:17

From Perth

From Perth (PER), Australia to Ontario, United States (ONT): $1,616

Depart: 20 Aug 2025 · Return: 24 Aug 2025 Price found 09 May 2025, 05:35

From Gold Coast

From Gold Coast (OOL), Australia to Ontario, United States (ONT): $1,690

Depart: 02 Feb 2026 · Return: 23 Feb 2026 Price found 10 May 2025, 10:40

From Darwin

From Darwin (DRW), Australia to Ontario, United States (ONT): $1,839

Depart: 29 Sep 2025 · Return: 05 Oct 2025 Price found 11 May 2025, 00:34

From Adelaide

From Adelaide (ADL), Australia to Ontario, United States (ONT): $1,960

Depart: 04 Mar 2026 · Return: 31 Mar 2026 Price found 10 May 2025, 22:44

From Port Macquarie

From Port Macquarie (PQQ), Australia to Ontario, United States (ONT): $2,023

Depart: 09 Aug 2025 · Return: 16 Aug 2025 Price found 09 May 2025, 01:17

From Townsville

From Townsville (TSV), Australia to Ontario, United States (ONT): $2,251

Depart: 12 Nov 2025 · Return: 10 Dec 2025 Price found 09 May 2025, 04:53

From Cairns

From Cairns (CNS), Australia to Ontario, United States (ONT): $2,450

Depart: 26 Jun 2025 · Return: 08 Jul 2025 Price found 11 May 2025, 09:23

From Canberra

From Canberra (CBR), Australia to Ontario, United States (ONT): $2,704

Depart: 14 May 2025 · Return: 21 May 2025 Price found 09 May 2025, 10:45

From Mackay

From Mackay (MKY), Australia to Ontario, United States (ONT): $3,299

Depart: 24 Dec 2025 · Return: 03 Jan 2026 Price found 12 May 2025, 09:01