How long is the flight from Indianapolis to Ontario?

Delta and Alaska Airlines can get you from Indianapolis to Ontario in just under 8h 36m. Your travel time can differ by up to 21h 59m. 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 $230 and $271 round-trip. These flights start at 62% lower than the current average price 3 months from now.

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.

$91+ Flights from Indianapolis to Ontario

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Indianapolis to Ontario are usually found in July or October, booked 15 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

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 diciembre 1, 2025.

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

jue. 1/86:00 amONT - IND

1 stop11h 00mFrontier

Deal found 11/30

$227

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

vie. 12/266:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/30

$228

jue. 12/117:19 pmIND - ONT

1 stop22h 06mFrontier

sáb. 12/133:20 pmONT - IND

1 stop25h 33mFrontier

Deal found 11/29

$234

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

jue. 12/256:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/29

$252

jue. 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

vie. 12/266:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/30

$254

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

mar. 12/306:45 amONT - IND

1 stop9h 55mFrontier

Deal found 12/1

$257

jue. 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

jue. 12/256:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/30

$278

lun. 12/158:00 amIND - ONT

1 stop16h 17mMultiple Airlines

jue. 12/186:45 amONT - IND

1 stop10h 08mMultiple Airlines

Deal found 12/1

$279

mar. 12/238:35 pmIND - ONT

1 stop6h 24mFrontier

vie. 12/266:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/29

$284

jue. 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

mar. 12/306:45 amONT - IND

1 stop9h 55mFrontier

Deal found 11/30

$304

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 diciembre 1, 2025.

sáb. 2/143:29 pmIND - ONT

1 stop8h 36mDelta

mar. 2/1710:20 pmONT - IND

1 stop7h 42mDelta

Deal found 11/29

$277

jue. 2/267:57 pmIND - ONT

1 stop30h 35mAlaska Airlines

mar. 3/36:14 amONT - IND

1 stop9h 42mAlaska Airlines

Deal found 11/30

$314

mié. 2/116:35 amIND - ONT

1 stop8h 41mDelta

mar. 2/1710:20 pmONT - IND

1 stop7h 42mDelta

Deal found 11/30

$321

dom. 2/86:00 amIND - ONT

1 stop8h 31mDelta

mar. 2/1710:20 pmONT - IND

1 stop7h 42mDelta

Deal found 11/29

$321

dom. 2/86:00 amIND - ONT

1 stop8h 31mDelta

sáb. 2/141:10 pmONT - IND

1 stop6h 37mDelta

Deal found 11/29

$321

mié. 2/116:35 amIND - ONT

1 stop8h 41mDelta

sáb. 2/141:10 pmONT - IND

1 stop6h 37mDelta

Deal found 11/30

$321

lun. 2/94:24 pmIND - ONT

1 stop7h 41mDelta

mar. 2/1710:20 pmONT - IND

1 stop7h 42mDelta

Deal found 11/29

$321

mar. 2/102:30 pmIND - ONT

1 stop9h 35mDelta

mar. 2/1710:20 pmONT - IND

1 stop7h 42mDelta

Deal found 11/30

$321

mar. 2/102:30 pmIND - ONT

1 stop9h 35mDelta

sáb. 2/141:10 pmONT - IND

1 stop6h 37mDelta

Deal found 11/30

$321

Last-minute flights from Indianapolis to Ontario
Discover last-minute flight deals from Indianapolis to Ontario. Data last updated diciembre 1, 2025 and is based on user searches.

lun. 12/89:11 pmIND - ONT

2 stops51h 06mFrontier

jue. 12/184:16 pmONT - IND

1 stop14h 09mFrontier

Deal found 12/1

$268

lun. 12/158:00 amIND - ONT

1 stop16h 17mMultiple Airlines

jue. 12/186:45 amONT - IND

1 stop10h 08mMultiple Airlines

Deal found 12/1

$279

jue. 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

vie. 12/266:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/30

$254

jue. 12/188:48 pmIND - ONT

1 stop6h 11mFrontier

jue. 12/256:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/30

$278

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

jue. 1/86:00 amONT - IND

1 stop11h 00mFrontier

Deal found 11/30

$227

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

vie. 12/266:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/30

$228

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

jue. 12/256:45 amONT - IND

1 stop10h 08mFrontier

Deal found 11/30

$252

dom. 12/218:48 pmIND - ONT

1 stop6h 11mFrontier

mar. 12/306:45 amONT - IND

1 stop9h 55mFrontier

Deal found 12/1

$257

jue. 1/88:55 pmIND - ONT

1 stop6h 01mFrontier

lun. 1/126:00 amONT - IND

1 stop11h 00mFrontier

Deal found 11/30

$182

jue. 1/88:55 pmIND - ONT

1 stop6h 01mFrontier

dom. 1/116:00 amONT - IND

1 stop11h 00mFrontier

Deal found 11/29

$282

dom. 1/118:55 pmIND - ONT

1 stop6h 01mFrontier

jue. 1/156:10 amONT - IND

1 stop10h 57mFrontier

Deal found 11/30

$269

dom. 1/188:52 pmIND - ONT

1 stop6h 07mFrontier

jue. 1/226:20 amONT - IND

1 stop6h 15mFrontier

Deal found 12/1

$237

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 diciembre 1, 2025.

jue. 1/88:55 pmIND - ONT

1 stop6h 01mFrontier

Deal found 11/29

$91

jue. 1/18:48 pmIND - ONT

1 stop6h 11mFrontier

Deal found 12/1

$92

jue. 1/224:30 pmIND - ONT

1 stop10h 50mFrontier

Deal found 11/29

$97

lun. 1/57:20 amIND - ONT

1 stop12h 55mMultiple Airlines

Deal found 11/29

$98

jue. 2/198:56 pmIND - ONT

1 stop6h 03mFrontier

Deal found 11/29

$111

lun. 3/98:48 pmIND - ONT

1 stop6h 11mFrontier

Deal found 11/29

$112

jue. 3/58:56 pmIND - ONT

1 stop6h 03mFrontier

Deal found 11/29

$113

vie. 1/98:55 pmIND - ONT

1 stop29h 19mFrontier

Deal found 12/1

$115

dom. 1/188:52 pmIND - ONT

1 stop30h 07mFrontier

Deal found 11/29

$121

dom. 1/254:30 pmIND - ONT

1 stop10h 50mFrontier

Deal found 11/29

$124

dom. 1/118:55 pmIND - ONT

1 stop6h 01mFrontier

Deal found 11/30

$126

dom. 2/14:30 pmIND - ONT

1 stop10h 50mFrontier

Deal found 11/30

$132

Cheap 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	$91 (Mytrip)
Popular in	November
Cheapest in	July
Average price	$476

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. 13% potential increase in price ($61 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($16 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

sáb. 2/14

3:29 pm-9:05 pm

1 stop8h 36m

Ontario

mar. 2/17

10:20 pm-9:02 am

1 stop7h 42m

$277

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

jue. 2/26

7:57 pm-11:32 pm

1 stop30h 35m

Ontario

mar. 3/3

6:14 am-6:56 pm

1 stop9h 42m

$314

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

mié. 2/11

6:35 am-12:16 pm

1 stop8h 41m

Ontario

mar. 2/17

10:20 pm-9:02 am

1 stop7h 42m

$321

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

dom. 2/8

6:00 am-11:31 am

1 stop8h 31m

Ontario

mar. 2/17

10:20 pm-9:02 am

1 stop7h 42m

$321

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

dom. 2/8

6:00 am-11:31 am

1 stop8h 31m

Ontario

sáb. 2/14

1:10 pm-10:47 pm

1 stop6h 37m

$321

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

mié. 2/11

6:35 am-12:16 pm

1 stop8h 41m

Ontario

sáb. 2/14

1:10 pm-10:47 pm

1 stop6h 37m

$321

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

lun. 2/9

4:24 pm-9:05 pm

1 stop7h 41m

Ontario

mar. 2/17

10:20 pm-9:02 am

1 stop7h 42m

$321

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

mar. 2/10

2:30 pm-9:05 pm

1 stop9h 35m

Ontario

mar. 2/17

10:20 pm-9:02 am

1 stop7h 42m

$321

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

mar. 2/10

2:30 pm-9:05 pm

1 stop9h 35m

Ontario

sáb. 2/14

1:10 pm-10:47 pm

1 stop6h 37m

$321

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

sáb. 2/28

5:45 pm-8:55 pm

1 stop6h 10m

$136

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 21 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 15 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 $149). 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.

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

8.0

Very good

4,253 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

8.0

Very good

4,253 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

8,010 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

9,065 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,041 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,094 reviews

Southwest

8.0

Very good

4,253 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?
Delta and Alaska Airlines can get you from Indianapolis to Ontario in just under 8h 36m. Your travel time can differ by up to 21h 59m. 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 $230 and $271 round-trip. These flights start at 62% lower than the current average price 3 months from now.
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 $149). 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

Alternative routes for Indianapolis to Ontario

O'Hare Intl to Las Vegas flights

O'Hare Intl to Los Angeles flights

O'Hare Intl to San Francisco flights

O'Hare Intl to San Diego flights

Cincinnati to Las Vegas flights

Midway to Las Vegas flights

O'Hare Intl to Santa Ana flights

O'Hare Intl to Palm Springs flights

O'Hare Intl to Ontario flights

Midway to Los Angeles flights

Indianapolis to Los Angeles flights

Cincinnati to Los Angeles flights

Indianapolis to Las Vegas flights

Midway to San Francisco flights

Indianapolis to San Francisco flights

Louisville to Las Vegas flights

O'Hare Intl to Sacramento flights

O'Hare Intl to Reno flights

O'Hare Intl to Burbank flights

O'Hare Intl to San Jose flights

Rockford to Las Vegas flights

Midway to San Diego flights

Cincinnati to Ontario flights

Indianapolis to San Diego flights

Midway to Palm Springs flights

Midway to Santa Ana flights

Louisville to Los Angeles flights

O'Hare Intl to Oakland flights

Dayton to Las Vegas flights

Fort Wayne to Las Vegas flights

Cincinnati to Santa Ana flights

Midway to Ontario flights

Cincinnati to San Francisco flights

Midway to Burbank flights

Cincinnati to San Diego flights

Midway to Sacramento flights

O'Hare Intl to Santa Barbara flights

O'Hare Intl to Long Beach flights

Indianapolis to Santa Ana flights

Midway to Reno flights

O'Hare Intl to Fresno flights

Louisville to Ontario flights

South Bend to Las Vegas flights

Cincinnati to Burbank flights

Dayton to San Diego flights

Cincinnati to San Jose flights

Louisville to San Francisco flights

Louisville to San Diego flights

Dayton to San Francisco flights

Complete your trip

Ontario car rentals

Los Angeles Airport car rentals

Ontario Airport car rentals

Burbank Bob Hope Airport car rentals

Long Beach Municipal Airport car rentals

Los Angeles car rentals

San Diego car rentals

San Francisco car rentals

San Jose car rentals

Fresno car rentals

Sacramento car rentals

Burbank car rentals

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$230	Average$366	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$271	Average$416	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$319	Average$421	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$324	Average$403	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$91+ 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 1/8. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Indianapolis to Ontario are usually found in July or October, booked 15 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Find 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 diciembre 1, 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 diciembre 1, 2025.

Cheap 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?

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?

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

100% Free

Book with Flexibility

Travel Smart

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 diciembre 1, 2025.