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$62+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - ONT
1 stop13h 19mFrontier
Mon 1/56:20 pmONT - ORD
1 stop14h 29mFrontier
Deal found 12/16$234
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - ONT
1 stop13h 19mFrontier
Tue 1/64:04 pmONT - ORD
2 stops44h 53mFrontier
Deal found 12/16$254
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Wed 12/247:00 amORD - ONT
1 stop18h 59mFrontier
Wed 12/316:45 amONT - ORD
1 stop15h 27mFrontier
Deal found 12/17$255
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - ONT
1 stop13h 19mMultiple Airlines
Tue 1/66:05 pmONT - ORD
1 stop8h 57mMultiple Airlines
Deal found 12/16$268
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:00 amORD - ONT
1 stop18h 59mFrontier
Thu 12/256:00 amONT - ORD
1 stop6h 17mFrontier
Deal found 12/16$279
This Frontier deal was found by Cheapflights users on 12/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:25 pmCVG - ONT
1 stop10h 34mFrontier
Mon 12/296:00 amONT - CVG
1 stop10h 10mFrontier
Deal found 12/15$284
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:10 amCVG - ONT
1 stop20h 49mFrontier
Thu 1/16:45 amONT - CVG
1 stop26h 28mFrontier
Deal found 12/16$285
This Gotogate deal was found by Cheapflights users on 12/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/209:30 pmCVG - ONT
1 stop26h 57mFrontier
Mon 12/226:00 amONT - CVG
1 stop10h 10mFrontier
Deal found 12/16$304
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Wed 12/247:00 amORD - ONT
1 stop18h 59mFrontier
Thu 1/16:45 amONT - ORD
1 stop15h 27mFrontier
Deal found 12/17$305
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:00 amCVG - ONT
1 stop7h 00mDelta
Thu 12/256:38 amONT - CVG
1 stop9h 17mDelta
Deal found 12/15$307
This Mytrip deal was found by Cheapflights users on 12/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:25 pmCVG - ONT
1 stop10h 34mFrontier
Sat 12/275:16 pmONT - CVG
1 stop22h 54mFrontier
Deal found 12/15$308
This CheapOair deal was found by Cheapflights users on 12/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:10 amCVG - ONT
1 stop20h 49mFrontier
Sat 12/275:16 pmONT - CVG
1 stop22h 54mFrontier
Deal found 12/16$309

Find flight deals from Indiana to Ontario

Keep the following information in mind while searching for Indiana to Ontario flight deals. Data was last updated December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$132
(Kiwi.com)

One-way from

$62
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$509
Provider with most accurate pricing for Indianapolis-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Los Angeles flights.
Search Deals
From Indiana to Ontario
Search Deals
One-way flight from Indiana to Ontario
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 2/3

8:00 am-8:36 pm

1 stop15h 36m

Ontario

Fri 2/6

4:03 pm-7:49 pm

1 stop24h 46m

$264

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 1/17

8:00 am-8:36 pm

1 stop15h 36m

Ontario

Fri 1/23

4:03 pm-7:49 pm

1 stop24h 46m

$264

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 1/28

8:00 am-8:36 pm

1 stop15h 36m

Ontario

Tue 2/3

4:03 pm-7:49 pm

1 stop24h 46m

$264

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 1/30

8:00 am-11:56 pm

1 stop18h 56m

Ontario

Tue 2/3

4:03 pm-7:49 pm

1 stop24h 46m

$274

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 1/29

8:00 am-11:56 pm

1 stop18h 56m

Ontario

Tue 2/3

11:53 am-7:49 pm

1 stop28h 56m

$274

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 1/9

3:05 pm-11:56 pm

1 stop10h 51m

Ontario

Sun 1/11

10:18 pm-2:05 pm

2 stops13h 47m

$286

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Thu 1/15

8:52 pm-11:59 pm

1 stop6h 07m

Ontario

Sun 1/18

6:10 am-8:07 pm

1 stop10h 57m

$288

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 1/8

7:00 am-12:47 pm

2 stops8h 47m

Ontario

Thu 1/8

6:39 pm-10:45 am

2 stops13h 06m

$291

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 1/14

8:00 am-8:36 pm

1 stop15h 36m

Ontario

Wed 1/28

4:03 pm-7:49 pm

1 stop24h 46m

$294

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 2/20

8:09 am-11:32 pm

1 stop18h 23m

Ontario

Fri 2/27

4:02 pm-8:39 pm

1 stop25h 37m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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 $96). Flying from Indiana to Ontario in January is currently the most expensive (average of $234). 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 December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Indiana to Ontario in the evening. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Indiana to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Indiana to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Indiana to Ontario flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 8h 26m. Fly via Alaska Airlines, Frontier, or Delta to get the fastest option. Airlines will cover a distance of 1695 mi. This flight may include one or multiple stops.

  • 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 $96). Flying from Indiana to Ontario in January is currently the most expensive (average of $234). 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$229FlexibilityNo cancel feeOn-time62%
DeltaCheapest$183Average$400FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$459FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$271Average$416FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$319Average$419FlexibilityNo cancel feeOn-time63%

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