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Ontario

$113+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$236
(Flightnetwork)

One-way from

$113
(Cheapflightsfares)

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. 12% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Flightnetwork deal was found by Cheapflights users on 7/30. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/169:55 amORD - ONT
1 stop11h 19mFrontier
Fri 8/2212:59 amONT - ORD
1 stop20h 40mFrontier
Deal found 7/30$236
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/28:05 amMDW - ONT
1 stop13h 09mFrontier
Wed 8/65:21 pmONT - MDW
1 stop25h 33mFrontier
Deal found 7/31$238
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/306:00 amIND - ONT
1 stop6h 09mFrontier
Fri 8/2912:59 amONT - IND
1 stop11h 41mFrontier
Deal found 7/29$238
This FlightHub deal was found by Cheapflights users on 7/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:15 amCVG - ONT
1 stop19h 35mFrontier
Mon 8/1112:59 amONT - CVG
1 stop20h 55mFrontier
Deal found 7/31$245
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:01 pmSBN - ONT
1 stop11h 03mAmerican Airlines
Wed 11/510:47 amONT - SBN
1 stop8h 21mAmerican Airlines
Deal found 7/30$277
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:10 amIND - ONT
1 stop7h 07mDelta
Sat 9/271:15 pmONT - IND
1 stop6h 29mDelta
Deal found 7/30$277
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:15 amSBN - ONT
1 stop7h 20mDelta
Mon 9/111:45 amONT - SBN
1 stop7h 04mDelta
Deal found 7/30$283
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:34 amORD - ONT
1 stop12h 42mAmerican Airlines
Tue 10/71:00 pmONT - ORD
1 stop9h 30mAmerican Airlines
Deal found 7/29$283
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:30 amIND - ONT
1 stop10h 42mHawaiian Airlines
Tue 10/76:00 amONT - IND
1 stop9h 02mHawaiian Airlines
Deal found 7/30$283
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/207:24 amIND - ONT
1 stop7h 28mAmerican Airlines
Sun 8/2412:22 pmONT - IND
1 stop7h 38mAmerican Airlines
Deal found 7/30$284
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amFWA - ONT
1 stop8h 24mDelta
Mon 12/810:59 pmONT - FWA
1 stop8h 58mDelta
Deal found 7/30$289
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:00 amDAY - ONT
1 stop7h 35mDelta
Sat 8/3011:45 amONT - DAY
1 stop9h 11mDelta
Deal found 7/31$289

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 July 31, 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

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 8/16

9:55 am-7:14 pm

1 stop11h 19m

Ontario

Fri 8/22

12:59 am-11:39 pm

1 stop20h 40m

$236

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Sat 8/9

6:00 am-9:09 am

1 stop6h 09m

Ontario

Fri 8/22

12:59 am-3:40 pm

1 stop11h 41m

$238

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 8/5

7:15 am-11:50 pm

1 stop19h 35m

Ontario

Mon 8/11

12:59 am-12:54 am

1 stop20h 55m

$245

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 9/11

10:13 am-3:29 pm

1 stop7h 16m

Ontario

Mon 9/15

12:13 pm-8:52 pm

1 stop6h 39m

$245

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Sat 11/1

12:01 pm-8:04 pm

1 stop11h 03m

Ontario

Wed 11/5

10:47 am-10:08 pm

1 stop8h 21m

$277

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Tue 9/23

8:10 am-12:17 pm

1 stop7h 07m

Ontario

Sat 9/27

1:15 pm-10:44 pm

1 stop6h 29m

$277

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Thu 10/2

6:30 am-2:12 pm

1 stop10h 42m

Ontario

Tue 10/7

6:00 am-6:02 pm

1 stop9h 02m

$283

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Tue 8/26

6:15 am-10:35 am

1 stop7h 20m

Ontario

Mon 9/1

11:45 am-9:49 pm

1 stop7h 04m

$283

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 10/4

7:34 am-6:16 pm

1 stop12h 42m

Ontario

Tue 10/7

1:00 pm-12:30 am

1 stop9h 30m

$283

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 8/20

7:24 am-11:52 am

1 stop7h 28m

Ontario

Sun 8/24

12:22 pm-11:00 pm

1 stop7h 38m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 $246). Flying from Indiana to Ontario in March is currently the most expensive (average of $328). 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 July 31, 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Indiana to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 ($113), Hawaiian Airlines ($137), and American Airlines ($138).

  • 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 $246). Flying from Indiana to Ontario in March is currently the most expensive (average of $328). 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$216FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$248Average$442FlexibilityNo cancel feeOn-time71%
DeltaCheapest$274Average$365FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$324Average$496FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$330Average$439FlexibilityNo cancel feeOn-time63%

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