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Ontario

$78+ Cheap flights from Indiana to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Indiana to Ontario

Keep the following information in mind while searching for Indiana to Ontario flight deals. Data was last updated September 16, 2025.

Round-trip from

$143
(eDestinos)

One-way from

$78
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$315
From Indiana to Ontario
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One-way flight from Indiana to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Indiana to Ontario

Cheapest flights from Indiana to Ontario
Explore the most affordable flight options available from Indiana to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This eDestinos deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:25 amORD - ONT
1 stop24h 58mFrontier
Tue 10/77:04 amONT - ORD
1 stop14h 49mFrontier
Deal found 9/13$143
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:50 amORD - ONT
1 stop19h 00mFrontier
Sun 10/266:53 amONT - ORD
1 stop15h 00mFrontier
Deal found 9/14$148
This Booking.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:20 amORD - ONT
1 stop14h 34mFrontier
Wed 10/86:53 amONT - ORD
1 stop15h 00mFrontier
Deal found 9/15$149
This Gotogate deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/206:05 amCVG - ONT
1 stop6h 30mFrontier
Sat 10/257:04 amONT - CVG
1 stop13h 55mFrontier
Deal found 9/14$150
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:24 pmMDW - ONT
1 stop7h 26mFrontier
Sun 10/266:53 amONT - MDW
1 stop26h 23mFrontier
Deal found 9/14$150
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:39 pmIND - ONT
1 stop6h 11mFrontier
Sat 11/16:53 amONT - IND
1 stop5h 42mFrontier
Deal found 9/15$150
This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:05 amCVG - ONT
1 stop20h 45mFrontier
Sat 11/1512:05 pmONT - CVG
1 stop8h 54mFrontier
Deal found 9/16$151
This Booking.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:30 pmMDW - ONT
1 stop24h 40mFrontier
Sun 11/25:53 amONT - MDW
1 stop26h 37mFrontier
Deal found 9/14$151
This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:05 amCVG - ONT
1 stop20h 45mFrontier
Mon 11/34:05 pmONT - CVG
1 stop6h 34mFrontier
Deal found 9/16$152
This Booking.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/23:21 pmCVG - ONT
1 stop19h 32mFrontier
Mon 10/612:13 pmONT - CVG
1 stop6h 46mFrontier
Deal found 9/15$153
This CheapOair deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:05 amORD - ONT
1 stop18h 45mFrontier
Sat 10/188:34 amONT - ORD
1 stop13h 25mFrontier
Deal found 9/13$153
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:00 amMDW - ONT
1 stop9h 28mFrontier
Sun 10/266:53 amONT - MDW
1 stop26h 23mFrontier
Deal found 9/14$154

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indiana to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Indiana to Ontario that are best for you.

Fly from

Indiana

Fly to

Ontario

Route

Depart

Return

Price

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 10/31

12:30 pm-11:10 am

1 stop24h 40m

Ontario

Sun 11/2

5:53 am-10:30 am

1 stop26h 37m

$150

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 10/14

8:00 am-11:50 pm

1 stop18h 50m

Ontario

Tue 10/21

7:04 am-11:59 pm

1 stop13h 55m

$151

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 11/13

12:30 pm-11:50 pm

1 stop13h 20m

Ontario

Sat 11/15

6:53 am-11:30 am

1 stop26h 37m

$159

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 9/21

12:02 pm-6:35 pm

1 stop9h 33m

Ontario

Thu 10/2

6:00 am-3:43 pm

1 stop6h 43m

$162

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 10/24

9:00 am-4:28 pm

1 stop9h 28m

Ontario

Sun 10/26

6:53 am-12:36 am

1 stop15h 43m

$169

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 9/22

8:00 am-2:00 pm

1 stop9h 00m

Ontario

Fri 9/26

12:13 pm-10:02 pm

1 stop6h 49m

$177

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 10/31

1:27 pm-11:50 pm

1 stop13h 23m

Ontario

Fri 11/7

4:05 pm-1:39 am

1 stop6h 34m

$177

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 10/30

6:05 am-11:10 am

1 stop8h 05m

Ontario

Thu 10/30

7:44 pm-6:54 am

1 stop8h 10m

$179

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 10/16

6:24 pm-11:50 pm

1 stop7h 26m

Ontario

Sun 10/19

6:53 am-12:36 am

1 stop15h 43m

$192

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Sun 10/12

10:30 am-5:49 pm

1 stop9h 19m

Ontario

Sat 10/18

8:34 am-11:20 pm

1 stop12h 46m

$195

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 60 results
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Best time to book a flight from Indiana to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Indiana with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Indiana to Ontario

What is the cheapest month to book a flight from Indiana to Ontario?

Currently, August is the cheapest month in which you can book a flight from Indiana to Ontario (average of $246). Flying from Indiana to Ontario in March is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IN to ONT?

Find hourly flight availability from Indiana to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Indiana to Ontario as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Indiana to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Indiana?

    If you book a flight to Ontario from Indiana, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How long is the flight from Indiana to Ontario?

    There are many flights that can get you from Indiana to Ontario in 7h 33m. Fly via Frontier, United Airlines, or Delta to get the fastest option. Airlines will cover a distance of 1873 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Indiana to Ontario one-way?

    The cheapest airlines for a one-way flight from Indiana to Ontario are Frontier ($79), Alaska Airlines ($146), and Hawaiian Airlines ($146).

  • What are the most popular routes from Indiana to Ontario?

    The most popular flight routes from Indiana to Ontario are Chicago O'Hare Intl - Ontario, Indianapolis - Ontario and Chicago Midway - Ontario.

  • Can I find deals for flights from Indiana to Ontario that include hotel bookings?

    Yes. In addition to deals on Indiana to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Indiana to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Indiana to Ontario.

  • Can I find deals for business class flights from Indiana to Ontario?

    Yes. Cheapflights offers flight deals from Indiana to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Indiana to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Indiana to Ontario (average of $246). Flying from Indiana to Ontario in March is currently the most expensive (average of $327). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Indiana to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Indiana to Ontario

Discover the top 5 airlines that operate flights from Indiana to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$163Average$230FlexibilityNo cancel feeOn-time62%
DeltaCheapest$183Average$413FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$462FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$320Average$441FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$324Average$586FlexibilityNo cancel feeOn-time69%

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