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$58+ 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheapflights Tip: The best prices from Indianapolis to Ontario are usually found in August or July, 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 July 1, 2025.

Round-trip from

$159
(Priceline)

One-way from

$58
(Priceline)

Popular in

December

Cheapest in

August

Average price

$352
From Indianapolis to Ontario
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One-way flight from Indianapolis to Ontario
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Highest demand for flights based on searches. 16% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 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 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 July 1, 2025.

This Priceline deal was found by Cheapflights users on 6/30. 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.
Tue 7/156:00 amIND - ONT
1 stop6h 09mFrontier
Thu 7/248:09 pmONT - IND
1 stop11h 36mFrontier
Deal found 6/30$159

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 July 1, 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

Tue 7/15

6:00 am-9:09 am

1 stop6h 09m

Ontario

Thu 7/24

8:09 pm-10:45 am

1 stop11h 36m

$159

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Fri 8/8

11:45 am-7:14 pm

1 stop10h 29m

$58

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Tue 8/26

8:20 am-4:24 pm

1 stop11h 04m

$147

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 9/24

6:30 am-2:12 pm

1 stop10h 42m

$169

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Sun 8/31

9:12 am-8:33 pm

2 stops14h 21m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 June 27, 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 July 1, 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.

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 1, 2025.
See what other customers who have flown with Alaska Airlines, United Airlines, and American Airlines from Indianapolis to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

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

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

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
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.9
Fair
3,289 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Entertainment

7.1

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 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 is the cheapest airline to fly 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 $159 on this airline. This flight start at 60% 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 $58 on Frontier. Other airlines that offer cheap prices include American Airlines from $147 and Alaska Airlines from $169 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.

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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$235FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$415FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$376FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$324Average$496FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$330Average$441FlexibilityNo cancel feeOn-time63%

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