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Ontario

$59+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
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 February 2, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/31. 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.
Sat 3/75:30 am
ORD
-
ONT
2 stops20h 29m
Frontier
Mon 3/99:40 pm
ONT
-
ORD
1 stop6h 28m
Frontier
Deal found 1/31$145
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/411:51 am
ORD
-
ONT
2 stops23h 43m
Frontier
Tue 3/102:23 pm
ONT
-
ORD
1 stop13h 45m
Frontier
Deal found 2/1$167
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 3/36:02 pm
ORD
-
ONT
2 stops29h 32m
Frontier
Tue 3/102:23 pm
ONT
-
ORD
1 stop13h 45m
Frontier
Deal found 2/1$175
This CheapOair deal was found by Cheapflights users on 2/1. 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.
Mon 2/2310:05 am
IND
-
ONT
1 stop7h 25m
Frontier
Thu 2/262:08 pm
ONT
-
IND
1 stop26h 39m
Frontier
Deal found 2/1$179
This Trip.com deal was found by Cheapflights users on 1/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:50 pm
ORD
-
ONT
1 stop9h 17m
Frontier
Wed 4/1512:59 am
ONT
-
ORD
1 stop6h 51m
Frontier
Deal found 1/31$185
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 3/107:00 am
ORD
-
ONT
2 stops18h 59m
Frontier
Wed 3/112:23 pm
ONT
-
ORD
1 stop13h 45m
Frontier
Deal found 2/1$186
This Expedia deal was found by Cheapflights users on 1/31. 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.
Mon 5/47:59 pm
CVG
-
ONT
1 stop6h 56m
Frontier
Mon 5/116:15 am
ONT
-
CVG
1 stop10h 08m
Frontier
Deal found 1/31$190
This Frontier deal was found by Cheapflights users on 2/1. 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.
Mon 4/1312:50 pm
ORD
-
ONT
1 stop9h 17m
Frontier
Tue 4/217:29 pm
ONT
-
ORD
1 stop9h 18m
Frontier
Deal found 2/1$190
This CheapOair deal was found by Cheapflights users on 1/31. 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.
Tue 3/178:33 pm
IND
-
ONT
1 stop6h 26m
Frontier
Tue 3/246:15 am
ONT
-
IND
1 stop10h 23m
Frontier
Deal found 1/31$190
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sat 2/218:05 am
ORD
-
ONT
2 stops17h 54m
Frontier
Thu 2/267:22 pm
ONT
-
ORD
1 stop20h 04m
Frontier
Deal found 2/1$192
This Frontier deal was found by Cheapflights users on 1/31. 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.
Thu 2/268:42 pm
IND
-
ONT
1 stop6h 17m
Frontier
Sat 3/76:15 am
ONT
-
IND
1 stop10h 23m
Frontier
Deal found 1/31$193
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Mon 3/23:40 pm
ORD
-
ONT
2 stops23h 31m
Frontier
Sat 3/76:15 am
ONT
-
ORD
1 stop24h 28m
Frontier
Deal found 2/1$194

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 February 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$145
(Kiwi.com)

One-way from

$59
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$409
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. 22% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 2, 2026.
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

Thu 2/26

7:00 am-11:59 pm

1 stop19h 59m

Ontario

Mon 3/2

2:06 pm-12:59 am

1 stop7h 53m

$235

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 3/26

11:58 am-4:15 pm

1 stop7h 17m

Ontario

Tue 3/31

6:15 am-2:22 pm

1 stop29h 07m

$241

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 3/11

8:33 pm-11:59 pm

1 stop30h 26m

Ontario

Sun 3/15

6:15 am-7:38 pm

1 stop10h 23m

$259

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 3/7

5:29 pm-11:32 pm

1 stop8h 03m

Ontario

Wed 3/11

12:02 pm-11:56 pm

1 stop9h 54m

$270

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 3/3

7:00 am-3:08 pm

1 stop10h 08m

Ontario

Sat 3/14

12:02 pm-11:56 pm

1 stop9h 54m

$270

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 3/3

7:00 am-3:08 pm

1 stop10h 08m

Ontario

Tue 3/10

12:02 pm-11:56 pm

1 stop9h 54m

$270

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 3/7

4:55 pm-9:05 pm

1 stop7h 10m

Ontario

Tue 3/10

10:25 pm-8:56 am

1 stop7h 31m

$277

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 4/11

8:05 am-12:23 pm

1 stop7h 18m

Ontario

Sat 4/18

10:15 pm-8:55 am

1 stop7h 40m

$277

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 4/11

5:55 pm-10:48 pm

1 stop7h 53m

Ontario

Wed 4/15

12:49 pm-12:11 am

1 stop8h 22m

$277

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 2/25

7:10 am-12:02 pm

1 stop7h 52m

Ontario

Tue 3/10

1:20 pm-10:53 pm

1 stop6h 33m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

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 $227). 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.

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 10m. Fly via Frontier, Alaska Airlines, or Delta to get the fastest option. Airlines will cover a distance of 1849 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 American Airlines ($99), Frontier ($100), and United Airlines ($137).

  • 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, Cincinnati Cinci./N. Kentucky - Ontario and Indianapolis - 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 $227). 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 February 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$163Average$229FlexibilityNo cancel feeOn-time62%
DeltaCheapest$183Average$390FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$271Average$416FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$276Average$466FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$316Average$417FlexibilityNo cancel feeOn-time63%

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