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$105+ Cheap flights from Ontario to Indianapolis (ONT - IND)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IND
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Indianapolis are usually found in February or September, booked 27 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Ontario to Indianapolis

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Indianapolis (IND). 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 September 16, 2025.

Round-trip from

$150
(CheapOair)

One-way from

$105
(Trip.com)

Popular in

November

Cheapest in

February

Average price

$346
From Ontario to Indianapolis
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One-way flight from Ontario to Indianapolis
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Highest demand for flights based on searches. 12% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Indianapolis

Cheapest flights from Ontario to Indianapolis
Explore the most affordable flight options available from Ontario to Indianapolis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:53 amONT - IND
1 stop6h 36mFrontier
Sat 10/255:24 pmIND - ONT
1 stop9h 26mFrontier
Deal found 9/14$150
This Frontier deal was found by Cheapflights users on 9/14. 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.
Sun 11/96:53 amONT - IND
1 stop9h 51mFrontier
Thu 11/138:39 pmIND - ONT
1 stop6h 11mFrontier
Deal found 9/14$160
This CheapOair deal was found by Cheapflights users on 9/15. 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 11/74:05 pmONT - IND
1 stop20h 30mFrontier
Mon 11/108:39 pmIND - ONT
1 stop6h 11mFrontier
Deal found 9/15$181
This CheapOair deal was found by Cheapflights users on 9/15. 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 10/1011:53 amONT - IND
1 stop25h 36mFrontier
Thu 10/168:51 pmIND - ONT
1 stop5h 59mFrontier
Deal found 9/15$182
This Mytrip deal was found by Cheapflights users on 9/15. 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 11/74:05 pmONT - IND
1 stop20h 30mFrontier
Sun 11/98:39 pmIND - ONT
1 stop17h 31mFrontier
Deal found 9/15$187
This Frontier deal was found by Cheapflights users on 9/14. 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.
Thu 11/66:53 amONT - IND
1 stop9h 51mFrontier
Thu 11/138:39 pmIND - ONT
1 stop6h 11mFrontier
Deal found 9/14$191
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Wed 10/156:53 amONT - IND
1 stop6h 36mFrontier
Sun 10/198:51 pmIND - ONT
1 stop15h 44mFrontier
Deal found 9/15$192
This Frontier deal was found by Cheapflights users on 9/14. 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 11/710:40 pmONT - IND
2 stops13h 55mFrontier
Thu 11/138:39 pmIND - ONT
1 stop6h 11mFrontier
Deal found 9/14$197
This Frontier deal was found by Cheapflights users on 9/15. 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 10/226:53 amONT - IND
1 stop6h 36mFrontier
Thu 10/239:54 amIND - ONT
2 stops16h 56mFrontier
Deal found 9/15$198
This CheapOair deal was found by Cheapflights users on 9/15. 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 9/258:59 pmONT - IND
1 stop20h 05mFrontier
Sat 9/275:01 pmIND - ONT
1 stop17h 22mFrontier
Deal found 9/15$200
This CheapOair deal was found by Cheapflights users on 9/16. 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 9/268:59 pmONT - IND
1 stop16h 15mFrontier
Mon 9/298:54 pmIND - ONT
1 stop26h 00mFrontier
Deal found 9/16$205

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Indianapolis 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 September 16, 2025.
Use the filters below to find and compare flights from Ontario to Indianapolis that are best for you.

Fly from

Ontario

Fly to

Indianapolis

Route

Depart

Return

Price

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Fri 11/14

6:53 am-7:44 pm

1 stop9h 51m

Indianapolis

Sun 11/16

8:39 pm-11:10 am

1 stop17h 31m

$187

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Fri 11/7

4:05 pm-3:35 pm

1 stop20h 30m

Indianapolis

Sun 11/9

8:39 pm-11:10 am

1 stop17h 31m

$187

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Fri 11/7

10:40 pm-3:35 pm

2 stops13h 55m

Indianapolis

Thu 11/13

8:39 pm-11:50 pm

1 stop6h 11m

$197

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Thu 10/16

6:54 pm-4:06 pm

1 stop18h 12m

Indianapolis

Mon 10/20

8:54 pm-8:42 pm

1 stop26h 48m

$281

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Fri 10/31

6:53 am-7:44 pm

1 stop9h 51m

Indianapolis

Sat 11/1

9:36 pm-12:10 pm

2 stops17h 34m

$284

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Mon 11/10

1:20 pm-10:56 pm

1 stop6h 36m

Indianapolis

Tue 11/11

6:00 am-10:40 am

1 stop7h 40m

$293

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Sat 11/8

11:36 am-9:53 pm

1 stop7h 17m

Indianapolis

Wed 11/12

7:35 am-12:18 pm

1 stop7h 43m

$293

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Fri 11/7

10:00 pm-10:25 am

1 stop9h 25m

Indianapolis

Tue 11/11

6:00 am-10:40 am

1 stop7h 40m

$293

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Sun 11/9

10:25 pm-9:00 am

1 stop7h 35m

Indianapolis

Tue 11/11

6:00 am-10:40 am

1 stop7h 40m

$326

OntarioIndianapolis

ONT - IND

ONTIND

Ontario

Sun 11/9

10:25 pm-9:00 am

1 stop7h 35m

Indianapolis

Wed 11/12

7:35 am-12:18 pm

1 stop7h 43m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results
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Best time to book a flight from Ontario to Indianapolis

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Indianapolis. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Indianapolis, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Indianapolis (average of $286). Flying from Ontario to Indianapolis in March is currently the most expensive (average of $360). 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 ONT to IND?

Find hourly flight availability from Ontario to Indianapolis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 26% on flights from Ontario to Indianapolis by exploring options for tickets in the evening.

Reviews of airlines servicing Indianapolis

Get insights into the airlines that provide service to Indianapolis. 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 Indianapolis. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Ontario to Indianapolis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • How long is the flight from Ontario to Indianapolis?

    A quick flight from Ontario to Indianapolis can take about 9h 51m. Frontier provides one of the quickest options available for as low as $187. The distance from Ontario to Indianapolis is about 1763 mi.

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

    According to our current data, Frontier ($162), Delta ($193), and American Airlines ($312) offers the cheapest pricing from Ontario to Indianapolis. These flights start at 59% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $146. Users have also found prices from $146 and $147 on Hawaiian Airlines and Delta, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Indianapolis (average of $286). Flying from Ontario to Indianapolis in March is currently the most expensive (average of $360). 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

Traveling to a place near Indianapolis?

Book flights to Indianapolis if you plan to visit one of these locations
Muncie
Terre Haute
Noblesville
Fishers
Anderson
Kokomo
Greenwood
Bloomington
Franklin
Plainfield
Carmel
Crawfordsville
Speedway

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Alternative routes for Ontario to Indianapolis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Indianapolis

Discover the top 5 airlines that operate flights from Ontario to Indianapolis. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$217FlexibilityNo cancel feeOn-time62%
DeltaCheapest$193Average$396FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$312Average$442FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$317Average$464FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$332Average$417FlexibilityNo cancel feeOn-time63%

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