What airlines fly to Ontario?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Ontario from Indiana according to our data. American Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How many flights depart from Indiana to Ontario on average per week?

As of June 2026, 14 flights take off from Indiana and land in Ontario each week. The most common flight departure day for this route is Mon, with 29% of weekly flights taking off on this day.

How long does it take to fly to Ontario?

Average flight duration from Indiana to Ontario depends on which airport you fly into and out of. Flying from Indianapolis to Los Angeles is 4h 20m on average, while flying from South Bend to Los Angeles is 6h 44m on average. Los Angeles is the most popular airport in Ontario.

What is the cheapest airline that flies from Indiana to Ontario?

Frontier, United Airlines, and Delta are the most popular carriers operating from Indiana to Ontario

When did momondo last update prices for flights from Indiana to Ontario Airport?

Prices for flights from Indiana to Ontario Airport are updated daily.

How many operators does momondo search for flights from Indiana to Ontario Airport?

As of June 2026, there are 5 operators available to choose from for flights from Indiana to Ontario Airport.

How old do you have to be to fly from Indiana to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Indiana to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$107 Cheap Flights from Indiana to Ontario in 2026

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Find the cheapest flights from Indiana to Los Angeles

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:34 pm - 8:37 am

ORD

ONT

13h 03m

1 stop

10:50 am - 8:53 pm

ONT

ORD

8h 03m

1 stop

$171Frontier

Tue, Aug 4 - Tue, Aug 18

9:34 pm - 8:41 am

ORD

ONT

13h 07m

1 stop

10:50 am - 8:03 am

ONT

ORD

19h 13m

2 stops

$190Frontier

Tue, Aug 4 - Tue, Aug 18

7:15 am - 8:03 am

ORD

ONT

26h 48m

1 stop

3:40 pm - 5:37 am

ONT

ORD

11h 57m

1 stop

$195Frontier

Mon, Jul 27 - Tue, Aug 4

5:25 am - 9:15 am

MDW

ONT

5h 50m

1 stop

11:55 pm - 5:40 am

ONT

MDW

3h 45mnonstop

$249Southwest

Wed, Jul 1 - Tue, Jul 7

2:00 pm - 4:10 pm

MDW

ONT

4h 10mnonstop

11:55 pm - 5:45 am

ONT

MDW

3h 50mnonstop

$255Southwest

Thu, Aug 6 - Tue, Aug 11

7:20 pm - 11:37 pm

CVG

ONT

7h 17m

1 stop

7:05 am - 5:10 pm

ONT

CVG

7h 05m

1 stop

$277Delta

Tue, Sep 15 - Tue, Sep 22

5:26 pm - 11:04 am

IND

ONT

20h 38m

1 stop

12:00 pm - 5:13 am

ONT

IND

14h 13m

1 stop

$277Alaska Airlines

Tue, Aug 25 - Tue, Sep 1

5:10 pm - 9:52 pm

SBN

ONT

7h 42m

1 stop

10:00 pm - 11:11 am

ONT

SBN

10h 11m

1 stop

$349Delta

Thu, Aug 20 - Sun, Aug 23

5:50 pm - 10:51 pm

SDF

ONT

8h 01m

1 stop

6:10 am - 5:03 pm

ONT

SDF

7h 53m

1 stop

$356United Airlines

Wed, Jul 1 - Sat, Jul 4

9:00 am - 6:12 pm

SDF

ONT

12h 12m

2 stops

7:00 am - 4:37 pm

ONT

SDF

6h 37m

1 stop

$371United Airlines

Sat, Aug 15 - Tue, Aug 18

Alaska Airlines flights from Indiana to Ontario

Our best Alaska Airlines deals on Indiana to Ontario flight tickets

Alaska Airlines

Aug 25

IND5:26 pmIndianapolis

20h 38m

1 stop

ONT11:04 amOntario

Sep 1

ONT12:00 pmOntario

14h 13m

1 stop

IND5:13 amIndianapolis

$277

Alaska Airlines

Jun 9

SDF11:28 amLouisville Intl

15h 28m

2 stops

ONT11:56 pmOntario

Jun 13

ONT10:54 amOntario

20h 41m

2 stops

SDF10:35 amLouisville Intl

$714

Alaska Airlines

Jun 20

DAY1:34 pmDayton

12h 37m

2 stops

ONT11:11 pmOntario

Jun 29

ONT6:02 amOntario

14h 55m

2 stops

DAY11:57 pmDayton

$773

Frontier flights from Indiana to Ontario

Our best Frontier deals on Indiana to Ontario flight tickets

Frontier

Aug 4

ORD9:34 pmChicago O'Hare Intl

13h 03m

1 stop

ONT8:37 amOntario

Aug 18

ONT10:50 amOntario

8h 03m

1 stop

ORD8:53 pmChicago O'Hare Intl

$171

Frontier

Aug 4

ORD9:34 pmChicago O'Hare Intl

13h 07m

1 stop

ONT8:41 amOntario

Aug 18

ONT10:50 amOntario

19h 13m

2 stops

ORD8:03 amChicago O'Hare Intl

$190

Frontier

Jul 27

ORD7:15 amChicago O'Hare Intl

26h 48m

1 stop

ONT8:03 amOntario

Aug 4

ONT3:40 pmOntario

11h 57m

1 stop

ORD5:37 amChicago O'Hare Intl

$195

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 8/4

9:34 pm-8:37 am

1 stop13h 03m

Ontario

Tue 8/18

10:50 am-8:53 pm

1 stop8h 03m

$171

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 8/4

9:34 pm-8:41 am

1 stop13h 07m

Ontario

Tue 8/18

10:50 am-8:03 am

2 stops19h 13m

$190

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 7/27

7:15 am-8:03 am

1 stop26h 48m

Ontario

Tue 8/4

3:40 pm-5:37 am

1 stop11h 57m

$195

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Wed 7/1

5:25 am-9:15 am

1 stop5h 50m

Ontario

Tue 7/7

11:55 pm-5:40 am

Nonstop3h 45m

$249

Quickest round-trip

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 8/6

2:00 pm-4:10 pm

Nonstop4h 10m

Ontario

Tue 8/11

11:55 pm-5:45 am

Nonstop3h 50m

$255

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 9/15

7:20 pm-11:37 pm

1 stop7h 17m

Ontario

Tue 9/22

7:05 am-5:10 pm

1 stop7h 05m

$277

IndianapolisOntario

IND - ONT

INDONT

Indianapolis

Tue 8/25

5:26 pm-11:04 am

1 stop20h 38m

Ontario

Tue 9/1

12:00 pm-5:13 am

1 stop14h 13m

$277

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Thu 8/20

5:10 pm-9:52 pm

1 stop7h 42m

Ontario

Sun 8/23

10:00 pm-11:11 am

1 stop10h 11m

$349

LouisvilleOntario

SDF - ONT

SDFONT

Louisville Intl

Wed 7/1

5:50 pm-10:51 pm

1 stop8h 01m

Ontario

Sat 7/4

6:10 am-5:03 pm

1 stop7h 53m

$356

LouisvilleOntario

SDF - ONT

SDFONT

Louisville Intl

Sat 8/15

9:00 am-6:12 pm

2 stops12h 12m

Ontario

Tue 8/18

7:00 am-4:37 pm

1 stop6h 37m

$371

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Indiana to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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What is the cheapest month to fly to Ontario?

In general, May is the cheapest month to fly from Indiana to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $105. If you aren’t able to travel during the month of May, then book flights to Ontario from Indiana during November instead. Flights to Ontario in November, while not as cheap as those in May, still average around $142.

How far in advance should I book a flight from Indiana to Ontario?

You are more likely to see cheaper flights to Ontario from Indiana when booking week ahead of your departure date. In general, you can expect to find flights to Ontario for around $393 when searching week out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Indiana for as low as $303 on momondo.

Cheap Indiana to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Indiana to Ontario

Fastest flight time	4h 05m
Direct flights	Every day
Airports in Ontario	1 airport

The fastest flight from Indiana to Ontario takes 4h 05m

Direct flights go from Indiana to Ontario every day.

There is 1 airport in Ontario. From Indiana there are direct flights to Ontario (ONT).

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Frequently asked questions about flying from Indiana to Ontario

When did momondo last update prices for flights from Indiana to Ontario Airport?
Prices for flights from Indiana to Ontario Airport are updated daily.
How many operators does momondo search for flights from Indiana to Ontario Airport?
As of June 2026, there are 5 operators available to choose from for flights from Indiana to Ontario Airport.
How old do you have to be to fly from Indiana to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Indiana to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Indiana to Ontario

Compare and see reviews for airlines that fly from Indiana to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $163	Free Cancellation	Rating 5.6 2,908 reviews	Search Frontier flights
Delta	PriceFrom $166	Free Cancellation	Rating 7.8 8,395 reviews	Search Delta flights
United Airlines	PriceFrom $271	Free Cancellation	Rating 7.4 9,777 reviews	Search United Airlines flights
American Airlines	PriceFrom $276	Free Cancellation	Rating 7.1 11,651 reviews	Search American Airlines flights
Southwest	PriceFrom $316	Free Cancellation	Rating 8.0 4,258 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Indiana to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Indiana to Ontario for you.

Can I find flights from Indiana to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Indiana to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Indiana to Ontario?

Once all potential Indiana to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Indiana to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Indiana. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Indiana to Los Angeles from $107

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Indiana to Los Angeles departing on 7/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How many flights depart from Indiana to Ontario on average per week?

How long does it take to fly to Ontario?

Cheap Indiana to Ontario flight deals and tips

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Frequently asked questions about flying from Indiana to Ontario

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Compare and see reviews for airlines that fly from Indiana to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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