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$99+ Cheap flights from Indianapolis to Ontario (IND - 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheapflights Tip: The best prices from Indianapolis to Ontario are usually found in August or September, booked 30 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Indianapolis to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$198
(Frontier)

One-way from

$99
(Frontier)

Popular in

December

Cheapest in

August

Average price

$443
Provider with most accurate pricing for Indianapolis-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Ontario flights.
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From Indianapolis to Ontario
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One-way flight from Indianapolis to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Indianapolis to Ontario

Cheapest flights from Indianapolis to Ontario
Explore the most affordable flight options available from Indianapolis to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This Frontier deal was found by Cheapflights users on 4/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/212:01 pmIND - ONT
1 stop8h 46mFrontier
Thu 5/812:59 amONT - IND
1 stop12h 51mFrontier
Deal found 4/14$198
This Trip.com deal was found by Cheapflights users on 4/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1212:11 pmIND - ONT
1 stop8h 36mMultiple Airlines
Sat 5/171:15 pmONT - IND
2 stops16h 00mMultiple Airlines
Deal found 4/14$274
This Delta deal was found by Cheapflights users on 4/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/68:40 amIND - ONT
1 stop6h 36mDelta
Tue 5/131:10 pmONT - IND
1 stop6h 17mDelta
Deal found 4/14$307
This American Airlines deal was found by Cheapflights users on 4/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/43:47 pmIND - ONT
2 stops9h 10mAmerican Airlines
Wed 6/116:23 amONT - IND
1 stop5h 51mAmerican Airlines
Deal found 4/14$312
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:00 amIND - ONT
1 stop10h 06mAlaska Airlines
Tue 9/233:00 pmONT - IND
1 stop11h 00mAlaska Airlines
Deal found 4/14$342
This Southwest deal was found by Cheapflights users on 4/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:40 amIND - ONT
2 stops8h 20mSouthwest
Tue 9/236:30 amONT - IND
1 stop7h 50mSouthwest
Deal found 4/14$348
This United Airlines deal was found by Cheapflights users on 4/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:00 amIND - ONT
2 stops11h 25mUnited Airlines
Wed 5/146:48 pmONT - IND
1 stop8h 28mUnited Airlines
Deal found 4/13$402
This Hawaiian Airlines deal was found by Cheapflights users on 4/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/146:48 pmIND - ONT
1 stop8h 25mHawaiian Airlines
Wed 7/234:00 pmONT - IND
1 stop10h 00mHawaiian Airlines
Deal found 4/14$440

Cheapflights Fare Finder

Customize your flight search to find flights from Indianapolis 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 April 15, 2025.
Use the filters below to find and compare flights from Indianapolis to Ontario that are best for you.

Fly from

Indianapolis

Fly to

Ontario

Route

Depart

Return

Price

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Fri 5/2

12:01 pm-5:47 pm

1 stop8h 46m

Ontario

Thu 5/8

12:59 am-4:50 pm

1 stop12h 51m

$198

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Mon 5/12

12:11 pm-5:47 pm

1 stop8h 36m

Ontario

Sat 5/17

1:15 pm-8:15 am

2 stops16h 00m

$274

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Tue 5/6

8:40 am-12:16 pm

1 stop6h 36m

Ontario

Tue 5/13

1:10 pm-10:27 pm

1 stop6h 17m

$307

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 6/4

3:47 pm-9:57 pm

2 stops9h 10m

Ontario

Wed 6/11

6:23 am-3:14 pm

1 stop5h 51m

$312

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 5/7

7:00 am-8:29 pm

1 stop16h 29m

Ontario

Wed 5/14

4:29 pm-5:40 am

1 stop10h 11m

$354

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Mon 5/12

8:00 pm-11:00 pm

1 stop6h 00m

Ontario

Mon 5/19

6:10 am-7:15 pm

2 stops10h 05m

$395

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 5/7

6:00 am-2:25 pm

2 stops11h 25m

Ontario

Wed 5/14

6:48 pm-6:16 am

1 stop8h 28m

$402

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Mon 7/14

6:48 pm-12:13 am

1 stop8h 25m

Ontario

Wed 7/23

4:00 pm-5:00 am

1 stop10h 00m

$440

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Mon 4/21

11:30 am-5:03 pm

1 stop8h 33m

$99

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 5/14

7:15 am-11:08 am

1 stop6h 53m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 15 results
1
2

Compare providers for flights from Indianapolis to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Indianapolis to Ontario in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Indianapolis-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Indianapolis-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Indianapolis-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Indianapolis-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Indianapolis-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Indianapolis to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Indianapolis 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 Indianapolis to Ontario

How far ahead should I book a flight from Indianapolis to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Indianapolis to Ontario. Price data was last updated on April 11, 2025.

The price you pay for your flight from Indianapolis to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Indianapolis to Ontario (average of $246). Flying from Indianapolis 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 IND to ONT?

Find hourly flight availability from Indianapolis 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 April 15, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from Indianapolis to Ontario by exploring options for tickets at noon.

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

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

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

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 April 15, 2025.
To help decide which airline to fly from Indianapolis to Ontario, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,374 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Entertainment

7.1

Overall

8.0

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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

  • What are the cheapest airlines flying from Indianapolis to Ontario round-trip?

    Our cheapest airline available from Indianapolis to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $198 on this airline. Additional options worth looking into are Delta and Alaska Airlines, starting at $307 and $342 round-trip. These flights start at 50% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $99 on Frontier. Other airlines that offer cheap prices include Alaska Airlines from $153 and American Airlines from $154 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Indianapolis 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 Indianapolis to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Indianapolis to Ontario (average of $246). Flying from Indianapolis 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 Indianapolis 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 Indianapolis to Ontario

Discover the top 5 airlines that operate flights from Indianapolis 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$226FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$430FlexibilityNo cancel feeOn-time71%
DeltaCheapest$316Average$393FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$332Average$457FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$342Average$492FlexibilityNo cancel feeOn-time69%

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