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Flights to Ontario, California

Find cheap flights to Ontario, California in 2026/2027 from $46 This is the cheapest return flight found to Ontario, California from USA on FlightsFinder on January 28th 2026 at 14:35. 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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1. Enter your search requirements for Ontario, California

2. Compare the best Ontario, California deals from top comparison engines

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What are the cheapest return flights to Ontario, California in 2026/2027?

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

What are the cheapest one-way flights to Ontario, California in 2026/2027?

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

When are flights to Ontario, California cheapest?

up

The month of March

happy

According to our data, March is on average the cheapest time to book flights to Ontario, California.
You can get flights from $46 return.

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

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The month of October

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According to our data, October is on average the most expensive time to book flights to Ontario, California.
A return flight could set you back more than $237.

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?

A good price for a flight to Ontario is $41 - $51.

Which popular airports are close to Ontario, California?

Popular airports near Ontario, California include Ontario International Airport (ONT), Los Angeles International Airport (LAX), and John Wayne Airport (SNA).

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

The flight to Ontario, California (ONT) is roughly 4 hours 42 minutes and 1,895 miles (3,050 kilometres) from Atlanta, USA - Georgia, Atlanta Hartsfield-Jackson International Airport (ATL).

How do I find the cheapest possible flights to Ontario, California?

The best way is to compare flights to Ontario, California from leading comparison sites using our search engine dashboard.

Are there direct flights to Ontario, California?

Yes, there are direct flights to Ontario, California.

What is the weather like in Ontario, California?

Here is the average weather forecast in Ontario, California by month:

• Jan: 65°F
• Feb: 66°F
• Mar: 70°F
• Apr: 74°F
• May: 79°F
• Jun: 86°F
• Jul: 92°F
• Aug: 94°F
• Sep: 89°F
• Oct: 81°F
• Nov: 73°F
• Dec: 66°F

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

The main airport in Ontario, California is approximately 3 miles from the city center.

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

Typically, flights are cheapest to Ontario, California 2 months before departure.

Which day is cheapest to fly to Ontario, California?

Studies show flights to Ontario, California are typically cheaper on Tuesdays and Wednesdays.

Weather in Ontario, California

Clear
Clear

61.5 °F

Thu, 29 Jan 2026

Average Temperature

65°F

Jan

66°F

Feb

70°F

Mar

74°F

Apr

79°F

May

86°F

Jun

92°F

Jul

94°F

Aug

89°F

Sep

81°F

Oct

73°F

Nov

66°F

Dec

Ontario, California

Flight Distance and Flying Time to Ontario, California

Atlanta, USA - Georgia, Atlanta Hartsfield-Jackson International Airport (ATL) to Ontario, California (ONT)

Distance:
1,895 miles (3,050 kilometres)

Average flight time (direct 4 hours 42 minutes)

Los Angeles, USA - California, Los Angeles International Airport (LAX) to Ontario, California (ONT)

Distance:
47 miles (75 kilometres)

Average flight time (direct 36 minutes)

New York, USA - John F Kennedy International Airport (JFK) to Ontario, California (ONT)

Distance:
2,424 miles (3,901 kilometres)

Average flight time (direct 5 hours 53 minutes)

Dallas, USA - Dallas, Texas Fort Worth International Airport (DFW) to Ontario, California (ONT)

Distance:
1,186 miles (1,908 kilometres)

Average flight time (direct 3 hours 8 minutes)

Denver, USA - Colorado, Airport - Denver International Airport (DEN) to Ontario, California (ONT)

Distance:
818 miles (1,316 kilometres)

Average flight time (direct 2 hours 19 minutes)

San Francisco, USA - California, San Francisco International Airport (SFO) to Ontario, California (ONT)

Distance:
363 miles (585 kilometres)

Average flight time (direct 1 hour 18 minutes)

Seattle, USA - Airport - Seattle Tacoma International, Washington (SEA) to Ontario, California (ONT)

Distance:
957 miles (1,540 kilometres)

Average flight time (direct 2 hours 37 minutes)

Las Vegas, USA - Nevada, McCarran International Airport (LAS) to Ontario, California (ONT)

Distance:
197 miles (317 kilometres)

Average flight time (direct 56 minutes)

Orlando, USA - Florida, Orlando International Airport (MCO) to Ontario, California (ONT)

Distance:
2,167 miles (3,488 kilometres)

Average flight time (direct 5 hours 18 minutes)

Charlotte, USA - North Carolina, Douglas International Airport (CLT) to Ontario, California (ONT)

Distance:
2,074 miles (3,337 kilometres)

Average flight time (direct 5 hours 6 minutes)

Phoenix, USA - Arizona, Phoenix Sky Harbor International Airport (PHX) to Ontario, California (ONT)

Distance:
324 miles (521 kilometres)

Average flight time (direct 1 hour 13 minutes)

Houston, USA - Texas, Airport - George Bush Intercontinental (IAH) to Ontario, California (ONT)

Distance:
1,331 miles (2,142 kilometres)

Average flight time (direct 3 hours 27 minutes)

Miami, USA - Florida, Miami International Airport (MIA) to Ontario, California (ONT)

Distance:
2,292 miles (3,689 kilometres)

Average flight time (direct 5 hours 35 minutes)

Boston, USA - Massachusetts, Edward L. Logan International Airport (BOS) to Ontario, California (ONT)

Distance:
2,561 miles (4,121 kilometres)

Average flight time (direct 6 hours 11 minutes)

Minneapolis, USA - Minnesota, Airport - St. Paul International (MSP) to Ontario, California (ONT)

Distance:
1,492 miles (2,400 kilometres)

Average flight time (direct 3 hours 48 minutes)

Fort Lauderdale, USA - Florida, Fort Lauderdale-Hollywood International Airport (FLL) to Ontario, California (ONT)

Distance:
2,293 miles (3,690 kilometres)

Average flight time (direct 5 hours 35 minutes)

Detroit, USA - Michigan, Airport - Metropolitan Wayne County International (DTW) to Ontario, California (ONT)

Distance:
1,930 miles (3,106 kilometres)

Average flight time (direct 4 hours 47 minutes)

Philadelphia, USA - Pennsylvania, Airport - Philadelphia International (PHL) to Ontario, California (ONT)

Distance:
2,351 miles (3,783 kilometres)

Average flight time (direct 5 hours 43 minutes)

Baltimore, USA - Maryland, Baltimore/Washington International Airport (BWI) to Ontario, California (ONT)

Distance:
2,278 miles (3,666 kilometres)

Average flight time (direct 5 hours 33 minutes)

Salt Lake City, USA - Utah, Salt Lake City International Airport (SLC) to Ontario, California (ONT)

Distance:
558 miles (898 kilometres)

Average flight time (direct 1 hour 44 minutes)

San Diego, USA - California, San Diego International Airport (SAN) to Ontario, California (ONT)

Distance:
94 miles (152 kilometres)

Average flight time (direct 42 minutes)

Tampa, USA - Florida, Tampa International Airport (TPA) to Ontario, California (ONT)

Distance:
2,108 miles (3,392 kilometres)

Average flight time (direct 5 hours 11 minutes)

Portland, USA - International Airport, Oregon (PDX) to Ontario, California (ONT)

Distance:
839 miles (1,351 kilometres)

Average flight time (direct 2 hours 21 minutes)

Map of Ontario, California

Travel Videos About Ontario, California

Cheapest flight routes found to Ontario, California

From Denver

From Denver (DEN), USA to Ontario, United States (ONT): $46

Depart: 04 Mar 2026 · Return: 10 Mar 2026 Price found 28 Jan 2026, 14:35

From Las Vegas

From Las Vegas (LAS), USA to Ontario, United States (ONT): $51

Depart: 27 Feb 2026 · Return: 01 Mar 2026 Price found 28 Jan 2026, 21:43

From Dallas

From Dallas (DFW), USA to Ontario, United States (ONT): $71

Depart: 01 Apr 2026 · Return: 08 Apr 2026 Price found 26 Jan 2026, 22:05

From San Francisco

From San Francisco (SFO), USA to Ontario, United States (ONT): $80

Depart: 09 Mar 2026 · Return: 16 Mar 2026 Price found 29 Jan 2026, 01:09

From Salt Lake City

From Salt Lake City (SLC), USA to Ontario, United States (ONT): $97

Depart: 21 Feb 2026 · Return: 22 Feb 2026 Price found 26 Jan 2026, 05:38

From Phoenix

From Phoenix (PHX), USA to Ontario, United States (ONT): $97

Depart: 18 Feb 2026 · Return: 25 Feb 2026 Price found 28 Jan 2026, 23:37

From Minneapolis

From Minneapolis (MSP), USA to Ontario, United States (ONT): $98

Depart: 03 Mar 2026 · Return: 10 Mar 2026 Price found 28 Jan 2026, 14:42

From Los Angeles

From Los Angeles (LAX), USA to Ontario, United States (ONT): $123

Depart: 02 Mar 2026 · Return: 11 Mar 2026 Price found 27 Jan 2026, 17:26

From Houston

From Houston (IAH), USA to Ontario, United States (ONT): $125

Depart: 26 Feb 2026 · Return: 27 Feb 2026 Price found 26 Jan 2026, 01:29

From Atlanta

From Atlanta (ATL), USA to Ontario, United States (ONT): $125

Depart: 28 Feb 2026 · Return: 04 Mar 2026 Price found 27 Jan 2026, 03:45

From Detroit

From Detroit (DTW), USA to Ontario, United States (ONT): $132

Depart: 03 Mar 2026 · Return: 10 Mar 2026 Price found 28 Jan 2026, 23:42

From Seattle

From Seattle (SEA), USA to Ontario, United States (ONT): $139

Depart: 28 Feb 2026 · Return: 02 Mar 2026 Price found 27 Jan 2026, 12:07

From Portland

From Portland (PDX), USA to Ontario, United States (ONT): $153

Depart: 05 Mar 2026 · Return: 09 Mar 2026 Price found 26 Jan 2026, 17:02

From Orlando

From Orlando (MCO), USA to Ontario, United States (ONT): $153

Depart: 25 Feb 2026 · Return: 03 Mar 2026 Price found 27 Jan 2026, 17:13

From Tampa

From Tampa (TPA), USA to Ontario, United States (ONT): $163

Depart: 26 Feb 2026 · Return: 28 Feb 2026 Price found 27 Jan 2026, 05:36

From Miami

From Miami (MIA), USA to Ontario, United States (ONT): $166

Depart: 14 Feb 2026 · Return: 21 Feb 2026 Price found 25 Jan 2026, 13:13

From Charlotte

From Charlotte (CLT), USA to Ontario, United States (ONT): $167

Depart: 23 Feb 2026 · Return: 02 Mar 2026 Price found 28 Jan 2026, 11:21

From Philadelphia

From Philadelphia (PHL), USA to Ontario, United States (ONT): $170

Depart: 23 Feb 2026 · Return: 26 Feb 2026 Price found 25 Jan 2026, 20:19

From San Diego

From San Diego (SAN), USA to Ontario, United States (ONT): $176

Depart: 09 Feb 2026 · Return: 12 Feb 2026 Price found 27 Jan 2026, 23:18

From New York

From New York (JFK), USA to Ontario, United States (ONT): $183

Depart: 15 Apr 2026 · Return: 18 Apr 2026 Price found 26 Jan 2026, 17:19

From Fort Lauderdale

From Fort Lauderdale (FLL), USA to Ontario, United States (ONT): $205

Depart: 17 Mar 2026 · Return: 24 Mar 2026 Price found 28 Jan 2026, 19:44

From Boston

From Boston (BOS), USA to Ontario, United States (ONT): $239

Depart: 24 Feb 2026 · Return: 25 Feb 2026 Price found 28 Jan 2026, 17:27

From Washington D.C.

From Washington D.C. (BWI), USA to Ontario, United States (ONT): $421

Depart: 16 Apr 2026 · Return: 20 Apr 2026 Price found 28 Jan 2026, 17:30

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