How long is the flight from Indianapolis to Ontario?

Alaska Airlines and Delta can get you from Indianapolis to Ontario in just under 8h 41m. Your travel time can differ by up to 2h 27m. The distance between Indianapolis and Ontario is about 1763 mi. This flight may include one or multiple stops.

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 $150 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $183 and $271 round-trip. These flights start at 62% 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 $100 on Frontier. Other airlines that offer cheap prices include American Airlines from $138 and Southwest from $165 one-way.

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.

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).

What are the most popular airlines that fly from Indianapolis to Ontario?

Consider Southwest, American Airlines or Frontier when booking your flight. These represent the most popular airlines when flying from Indianapolis to Ontario.

Most accurate provider : When it comes to deals on Indianapolis-Ontario flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Indianapolis-Ontario flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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.

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.

$85+ Flights from Indianapolis to Ontario

Q: How much does it cost to fly round-trip from Indianapolis to Ontario?

Airfare is below average for this route at the moment. Indianapolis to Ontario flights typically cost between $386 and $701 in March. The cheapest round-trip price found within the last 3 days was $182 on Frontier (Mar 7-Mar 11).

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Find cheap flights from Indianapolis to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Indianapolis to Ontario are usually found in July or October, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap 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 December 16, 2025.

Thu 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

Thu 12/256:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/13

$259

Thu 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

Sat 12/276:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/15

$363

Thu 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

Sat 12/206:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/14

$364

Wed 12/318:48 amIND - ONT

2 stops18h 11mMultiple Airlines

Thu 1/14:16 pmONT - IND

1 stop14h 09mMultiple Airlines

Deal found 12/15

$447

Tue 12/238:35 pmIND - ONT

1 stop6h 24mFrontier

Tue 12/306:45 amONT - IND

1 stop9h 55mFrontier

Deal found 12/16

$480

Fri 12/198:48 pmIND - ONT

1 stop6h 11mFrontier

Fri 12/266:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/15

$487

Tue 12/238:35 pmIND - ONT

1 stop6h 24mFrontier

Sat 12/276:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/15

$492

Fri 12/198:48 pmIND - ONT

1 stop6h 11mFrontier

Sun 12/216:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/15

$497

Sun 12/148:48 pmIND - ONT

1 stop20h 37mFrontier

Sun 12/216:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/13

$523

Thu 12/255:05 pmIND - ONT

1 stop7h 47mUnited Airlines

Sun 12/2811:59 pmONT - IND

1 stop8h 14mUnited Airlines

Deal found 12/14

$559

Best flights from Indianapolis to Ontario
Discover carefully curated flight deals from Indianapolis to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Thu 2/57:00 amIND - ONT

1 stop11h 08mAlaska Airlines

Tue 2/1011:53 amONT - IND

1 stop28h 12mAlaska Airlines

Deal found 12/15

$314

Sat 1/176:35 amIND - ONT

1 stop8h 41mDelta

Wed 1/281:10 pmONT - IND

1 stop6h 39mDelta

Deal found 12/14

$334

Sat 2/287:57 pmIND - ONT

1 stop30h 35mAlaska Airlines

Tue 3/36:14 amONT - IND

1 stop9h 42mAlaska Airlines

Deal found 12/15

$324

Sun 1/186:35 amIND - ONT

1 stop8h 41mDelta

Mon 1/2612:41 pmONT - IND

1 stop8h 25mDelta

Deal found 12/14

$343

Wed 1/217:00 amIND - ONT

1 stop11h 08mAlaska Airlines

Tue 1/2711:53 amONT - IND

1 stop28h 12mAlaska Airlines

Deal found 12/14

$324

Sat 1/176:35 amIND - ONT

1 stop8h 41mDelta

Thu 1/2210:30 pmONT - IND

1 stop7h 29mDelta

Deal found 12/14

$343

Sat 1/176:35 amIND - ONT

1 stop8h 41mDelta

Fri 1/2310:30 pmONT - IND

1 stop8h 09mDelta

Deal found 12/14

$351

Wed 1/217:00 amIND - ONT

1 stop11h 08mAlaska Airlines

Wed 1/284:03 pmONT - IND

1 stop24h 02mAlaska Airlines

Deal found 12/14

$362

Wed 1/212:30 pmIND - ONT

1 stop9h 35mDelta

Sat 1/241:10 pmONT - IND

1 stop6h 39mDelta

Deal found 12/14

$367

Fri 1/237:00 amIND - ONT

1 stop19h 56mAlaska Airlines

Wed 1/2811:53 amONT - IND

1 stop28h 12mAlaska Airlines

Deal found 12/14

$373

Fri 1/307:00 amIND - ONT

1 stop19h 56mAlaska Airlines

Sun 2/16:00 amONT - IND

1 stop10h 05mAlaska Airlines

Deal found 12/15

$373

Wed 1/216:00 amIND - ONT

1 stop8h 31mDelta

Fri 1/231:10 pmONT - IND

1 stop6h 39mDelta

Deal found 12/14

$384

Last-minute flights from Indianapolis to Ontario
Discover last-minute flight deals from Indianapolis to Ontario. Data last updated December 16, 2025 and is based on user searches.

Thu 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

Thu 12/256:45 amONT - IND

1 stop10h 08mFrontier

Deal found 12/13

$259

Sun 1/48:48 pmIND - ONT

1 stop6h 11mFrontier

Mon 1/126:00 amONT - IND

1 stop11h 00mFrontier

Deal found 12/16

$267

Mon 1/57:20 amIND - ONT

1 stop12h 55mMultiple Airlines

Sun 1/1110:18 pmONT - IND

2 stops18h 42mMultiple Airlines

Deal found 12/14

$246

Thu 1/88:55 pmIND - ONT

1 stop6h 01mFrontier

Mon 1/126:00 amONT - IND

1 stop11h 00mFrontier

Deal found 12/14

$261

Mon 1/128:55 pmIND - ONT

1 stop29h 04mMultiple Airlines

Thu 1/1510:18 pmONT - IND

1 stop15h 26mMultiple Airlines

Deal found 12/15

$208

Mon 1/128:55 pmIND - ONT

1 stop29h 04mMultiple Airlines

Mon 1/1910:18 pmONT - IND

2 stops45h 30mMultiple Airlines

Deal found 12/15

$237

Mon 1/128:55 pmIND - ONT

1 stop6h 01mFrontier

Thu 1/156:10 amONT - IND

1 stop10h 57mFrontier

Deal found 12/15

$253

Thu 1/154:04 pmIND - ONT

2 stops25h 04mFrontier

Sat 1/317:15 amONT - IND

1 stop29h 20mFrontier

Deal found 12/14

$241

Thu 1/224:30 pmIND - ONT

1 stop10h 50mFrontier

Sun 1/256:20 amONT - IND

1 stop6h 15mFrontier

Deal found 12/15

$217

Sun 1/254:30 pmIND - ONT

1 stop10h 50mFrontier

Sat 1/317:15 amONT - IND

2 stops49h 28mFrontier

Deal found 12/14

$250

One-way flights from Indianapolis to Ontario
Search for one-way flight options from Indianapolis to Ontario. Find affordable one-way fares based on user searches. Data last updated December 16, 2025.

Thu 2/54:30 pmIND - ONT

1 stop10h 50mFrontier

Deal found 12/15

$85

Thu 1/224:30 pmIND - ONT

1 stop10h 50mFrontier

Deal found 12/13

$86

Mon 1/128:00 amIND - ONT

1 stop9h 51mMultiple Airlines

Deal found 12/13

$87

Thu 1/294:30 pmIND - ONT

1 stop10h 50mFrontier

Deal found 12/13

$88

Mon 2/2310:05 amIND - ONT

1 stop7h 25mFrontier

Deal found 12/15

$91

Mon 1/128:55 pmIND - ONT

1 stop6h 01mFrontier

Deal found 12/15

$92

Thu 3/58:52 pmIND - ONT

1 stop6h 07mFrontier

Deal found 12/15

$95

Mon 1/268:00 amIND - ONT

1 stop9h 41mMultiple Airlines

Deal found 12/14

$109

Mon 3/98:33 pmIND - ONT

1 stop6h 28mFrontier

Deal found 12/15

$110

Mon 2/212:38 pmIND - ONT

2 stops14h 42mFrontier

Deal found 12/13

$112

Thu 3/128:33 pmIND - ONT

1 stop6h 28mFrontier

Deal found 12/14

$113

Find flight deals from Indianapolis to Ontario

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$182 (Frontier)
One-way from	$85 (Trip.com)
Popular in	December
Cheapest in	July
Average price	$581

Provider with most accurate pricing for Indianapolis-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for Indianapolis-Ontario flights.

Search Deals

From Indianapolis to Ontario

Search Deals

One-way flight from Indianapolis to Ontario

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($81 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Indianapolis to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Thu 2/5

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Tue 2/10

11:53 am-7:05 pm

1 stop28h 12m

$314

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Sat 2/28

7:57 pm-11:32 pm

1 stop30h 35m

Ontario

Tue 3/3

6:14 am-6:56 pm

1 stop9h 42m

$324

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 1/21

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Tue 1/27

11:53 am-7:05 pm

1 stop28h 12m

$324

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Sat 1/17

6:35 am-12:16 pm

1 stop8h 41m

Ontario

Wed 1/28

1:10 pm-10:49 pm

1 stop6h 39m

$334

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Sun 1/18

6:35 am-12:16 pm

1 stop8h 41m

Ontario

Mon 1/26

12:41 pm-12:06 am

1 stop8h 25m

$343

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Sat 1/17

6:35 am-12:16 pm

1 stop8h 41m

Ontario

Thu 1/22

10:30 pm-8:59 am

1 stop7h 29m

$343

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Sat 1/17

6:35 am-12:16 pm

1 stop8h 41m

Ontario

Fri 1/23

10:30 pm-9:39 am

1 stop8h 09m

$351

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 1/21

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Wed 1/28

4:03 pm-7:05 pm

1 stop24h 02m

$362

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Wed 1/21

2:30 pm-9:05 pm

1 stop9h 35m

Ontario

Sat 1/24

1:10 pm-10:49 pm

1 stop6h 39m

$367

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Fri 1/23

7:00 am-11:56 pm

1 stop19h 56m

Ontario

Wed 1/28

11:53 am-7:05 pm

1 stop28h 12m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 23 results

Compare providers for flights from Indianapolis to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Indianapolis to Ontario in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 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 Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Indianapolis-Ontario flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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?

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 26 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 $96). Flying from Indianapolis to Ontario in January is currently the most expensive (average of $165). 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?

Unlike in the evening, when flights are generally more expensive, you can save up to 19% on flights from Indianapolis to Ontario by exploring options for tickets at noon.

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

Travelers seeking maximum savings on their Indianapolis 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.

How much does it cost to fly round-trip from Indianapolis to Ontario?

Reviews of airlines servicing Ontario

See what other customers who have flown with Southwest, Delta, and United 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.

Southwest

7.9

Good

4,250 reviews

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

7.9

Good

4,250 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

8,010 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

9,095 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,048 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,082 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

How long is the flight from Indianapolis to Ontario?
Alaska Airlines and Delta can get you from Indianapolis to Ontario in just under 8h 41m. Your travel time can differ by up to 2h 27m. The distance between Indianapolis and Ontario is about 1763 mi. This flight may include one or multiple stops.
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 $150 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $183 and $271 round-trip. These flights start at 62% 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 $100 on Frontier. Other airlines that offer cheap prices include American Airlines from $138 and Southwest from $165 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 $96). Flying from Indianapolis to Ontario in January is currently the most expensive (average of $165). 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

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Ontario

Top 5 airlines flying from Indianapolis to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$150	Average$229	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$183	Average$346	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$271	Average$416	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$319	Average$419	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$324	Average$408	FlexibilityNo cancel fee	On-time71%

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$85+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Indianapolis to Ontario with Cheapflights

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3. Compare prices and book

Cheapflights Tip: The best prices from Indianapolis to Ontario are usually found in July or October, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Indianapolis to Ontario

Cheapest flights from Indianapolis to OntarioExplore 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 December 16, 2025.

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 December 16, 2025.

Find flight deals from Indianapolis to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Indianapolis to Ontario that are best for you.

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 December.

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.

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?

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

What is the cheapest time of day to fly from IND to ONT?

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

How much does it cost to fly round-trip from Indianapolis to Ontario?

Reviews of airlines servicing Ontario

See what other customers who have flown with Southwest, Delta, and United 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.

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.

How long is the flight from Indianapolis to Ontario?

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

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

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

How can I find direct flights from Indianapolis to Ontario?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Indianapolis to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Indianapolis to Ontario

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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 December 16, 2025.