Cheap flights to Ontario, CA

Travel > North America > United States > Ontario, CA flights

Looking for cheap flights to Ontario, CA? We have several useful tools to help you find the flight offer you are looking for. You can enter your search details into the box on the left and compare the current prices of our providers. You can also browse the table below containing the cheapest flights to Ontario, CA found by Travelgrove users for the next 6 months. Scrolling down you will find one more handy info box with the most recently found Ontario, CA flight offers. Check the page from top to bottom and pick the flight that suits you best!

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Cheapest flights found for the next 6 months

(click city name to see more / use right arrow to view later months)
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Didn't have an exact departure location, just looking for the cheapest price? Browse our cheap flights state directory:

Check our newest flight offers to Ontario, CA:

  • $479Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Atlanta, GA (ATL)Ontario, CA (ONT)06/11/202508:33 pm
    Ontario, CA (ONT)Atlanta, GA (ATL)06/25/202506:15 pm
    cheapoair.com check price
  • $662Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    San Jose, CA (SJC)Ontario, CA (ONT)07/03/202506:00 pm
    Ontario, CA (ONT)San Jose, CA (SJC)07/05/202511:21 am
    cheapoair.com check price
  • $740Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Chicago, IL (MDW)Ontario, CA (ONT)06/25/202506:15 am
    Ontario, CA (ONT)Chicago, IL (MDW)07/09/202510:17 pm
    cheapoair.com check price
  • $740Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    New York, NY (LGA)Ontario, CA (ONT)05/28/202511:16 pm
    Ontario, CA (ONT)New York, NY (LGA)06/04/202512:59 am
    cheapoair.com check price
  • $750Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Atlanta, GA (ATL)Ontario, CA (ONT)07/02/202510:07 pm
    Ontario, CA (ONT)Atlanta, GA (ATL)07/09/202506:15 pm
    cheapoair.com check price
Ontario, CA travel guides

Travel information that may interest you

Ontario Nightlife

Some of the popular areas of the city are equipped with clubs and bars catering to people of different tastes. Almost every type of cuisine from around the world is available in Ontario restaurants of different origins. There are many restaurants and clubs around the city that offer various options of entertainment [...]

cheap domestic and international flights

Recently found cheap flight deals

Multiple AirlinesPhiladelphia To Boston Multiple Airlines airfares from Philadelphia in March
$129 Depart: 03/26/2025
Return: 04/05/2025

provided by Cheapoair.com

Alaska AirlinesEl Paso To Orange County Alaska Airlines airfares from El Paso in November
$537 Depart: 11/21/2021
Return: 12/02/2021

provided by Cheapoair.com

Air LingusChicago To Frankfurt Air Lingus airfares from Chicago in March
$682 Depart: 03/24/2025
Return: 05/06/2025

provided by Cheapoair.com

Alaska AirlinesPortland To Anchorage Alaska Airlines airfares from Portland in May
$616 Depart: 05/17/2023
Return: 05/24/2023

provided by Cheapoair.com

Multiple AirlinesCharlotte To Cabo San Lucas Multiple Airlines airfares from Charlotte in March
$991 Depart: 03/21/2025
Return: 03/28/2025

provided by Cheapoair.com

Spirit AirlinesBoston To Saint Croix Spirit Airlines airfares from Boston in April
$298 Depart: 04/03/2025
Return: 04/11/2025

provided by Cheapoair.com

Qatar AirwaysManchester, NH To Rome Qatar Airways airfares from Manchester, NH in October
$3988 Depart: 10/02/2020
Return: 10/09/2020

provided by Cheapoair.com

Multiple AirlinesLos Angeles To Auckland Multiple Airlines airfares from Los Angeles in March
$924 Depart: 03/12/2025
Return: 03/23/2025

provided by Cheapoair.com

Korean AirPortland To Tokyo Korean Air airfares from Portland in July
$1588 Depart: 07/04/2025
Return: 07/29/2025

provided by Cheapoair.com

 

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