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$57+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Frontier deal was found by Cheapflights users on 10/28. 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 11/136:00 amORD - ONT
1 stop7h 10mFrontier
Thu 11/131:46 pmONT - ORD
1 stop7h 58mFrontier
Deal found 10/28$125
This Priceline deal was found by Cheapflights users on 10/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:01 pmCVG - ONT
1 stop9h 48mFrontier
Wed 11/198:45 amONT - CVG
1 stop10h 23mFrontier
Deal found 10/30$130
This CheapOair deal was found by Cheapflights users on 10/29. 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 11/131:36 pmORD - ONT
1 stop7h 13mFrontier
Mon 11/171:46 pmONT - ORD
1 stop7h 58mFrontier
Deal found 10/29$130
This CheapOair deal was found by Cheapflights users on 10/30. 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 11/139:39 pmMDW - ONT
1 stop11h 50mFrontier
Sat 11/1512:05 pmONT - MDW
1 stop21h 25mFrontier
Deal found 10/30$130
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Thu 12/47:00 amORD - ONT
1 stop6h 09mFrontier
Sat 12/136:15 amONT - ORD
1 stop27h 27mFrontier
Deal found 10/28$131
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/87:00 amORD - ONT
1 stop9h 25mFrontier
Mon 12/153:20 pmONT - ORD
1 stop6h 52mFrontier
Deal found 10/29$133
This CheapOair deal was found by Cheapflights users on 10/30. 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.
Sun 12/77:00 amORD - ONT
1 stop10h 06mFrontier
Thu 12/116:15 amONT - ORD
1 stop27h 27mFrontier
Deal found 10/30$134
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 12/1511:01 amORD - ONT
1 stop26h 26mFrontier
Wed 12/316:45 amONT - ORD
1 stop15h 27mFrontier
Deal found 10/30$135
This CheapOair deal was found by Cheapflights users on 10/30. 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 11/139:30 pmCVG - ONT
1 stop27h 27mFrontier
Sun 11/166:53 amONT - CVG
1 stop15h 46mFrontier
Deal found 10/30$137
This CheapOair deal was found by Cheapflights users on 10/30. 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 11/146:00 amORD - ONT
1 stop19h 50mFrontier
Mon 11/171:46 pmONT - ORD
1 stop7h 58mFrontier
Deal found 10/30$137
This CheapOair deal was found by Cheapflights users on 10/29. 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 11/136:30 amMDW - ONT
1 stop14h 19mFrontier
Sun 11/161:46 pmONT - MDW
1 stop20h 51mFrontier
Deal found 10/29$137
This Mytrip deal was found by Cheapflights users on 10/30. 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.
Fri 12/512:18 pmMDW - ONT
1 stop28h 07mFrontier
Sun 12/72:59 pmONT - MDW
1 stop29h 19mFrontier
Deal found 10/30$138

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 October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$117
(Kiwi.com)

One-way from

$57
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$337
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. 14% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

Sat 11/15

3:47 pm-11:50 pm

1 stop11h 03m

Ontario

Thu 12/4

2:59 pm-11:58 pm

1 stop5h 59m

$130

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 11/13

6:30 am-6:49 pm

1 stop14h 19m

Ontario

Sun 11/16

1:46 pm-12:37 pm

1 stop20h 51m

$137

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 11/15

3:47 pm-11:50 pm

1 stop11h 03m

Ontario

Sat 11/22

7:08 pm-10:46 am

1 stop12h 38m

$206

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Mon 11/17

6:30 am-6:49 pm

1 stop14h 19m

Ontario

Sun 11/23

12:58 am-2:31 pm

1 stop11h 33m

$206

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Mon 11/10

6:30 am-6:39 pm

1 stop14h 09m

Ontario

Wed 11/12

8:45 am-11:30 am

1 stop24h 45m

$226

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Tue 12/2

7:35 am-12:34 pm

1 stop7h 59m

Ontario

Mon 12/8

10:25 pm-9:03 am

1 stop7h 38m

$277

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Tue 12/2

7:35 am-12:34 pm

1 stop7h 59m

Ontario

Tue 12/9

12:12 pm-9:42 pm

1 stop6h 30m

$277

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Tue 2/3

6:00 am-11:54 am

1 stop8h 54m

Ontario

Mon 2/9

10:30 pm-11:14 am

1 stop9h 44m

$289

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Thu 12/11

6:00 am-11:02 am

1 stop8h 02m

Ontario

Mon 1/12

10:30 pm-11:14 am

1 stop9h 44m

$289

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Tue 2/3

6:00 am-11:54 am

1 stop8h 54m

Ontario

Tue 2/10

1:04 pm-11:19 pm

1 stop7h 15m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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 December is currently the most expensive (average of $230). 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 October 30, 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 7h 59m. Fly via Frontier, Delta, or Alaska Airlines to get the fastest option. Airlines will cover a distance of 1763 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 Alaska Airlines ($137), Delta ($148), and United Airlines ($188).

  • 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, Chicago Midway - Ontario and Cincinnati Cinci./N. Kentucky - 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 December is currently the most expensive (average of $230). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$229FlexibilityNo cancel feeOn-time62%
DeltaCheapest$183Average$407FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$472FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$271Average$445FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$320Average$444FlexibilityNo cancel feeOn-time63%

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