IND - ONT

$118 Find Cheap Flights from Indianapolis to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Indianapolis to Ontario departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$240
Typical prices: $346-$428
Frontier
Sat 8/22Mon 8/24
IND - ONT • 1 stop
Cheapest one-way
$118
Typical prices: $139-$359
Frontier
Sat 8/22
IND - ONT • 1 stop
Top airlines
Cheapest • from $240 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Indianapolis and Ontario. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $320 (round-trip)
Shortest trip • 6h 25m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Indianapolis to Ontario (IND-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Indianapolis to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Indianapolis to Ontario

Sat, Aug 22 - Mon, Aug 24
Frontier Logo
8:49 pm - 11:50 pm
IND
-
ONT
6h 01m
1 stop
Frontier Logo
10:49 am - 8:04 pm
ONT
-
IND
6h 15m
1 stop
$240Frontier
Mon, Sep 7 - Tue, Sep 15
Frontier Logo
8:49 pm - 10:04 am
IND
-
ONT
16h 15m
1 stop
Frontier Logo
6:00 am - 7:21 pm
ONT
-
IND
10h 21m
1 stop
$274Frontier
Tue, Aug 25 - Wed, Aug 26
Frontier Logo
8:49 pm - 11:50 pm
IND
-
ONT
6h 01m
1 stop
Frontier Logo
9:37 am - 9:14 pm
ONT
-
IND
8h 37m
1 stop
$290Frontier
Tue, Jul 21 - Tue, Aug 25
Frontier Logo
8:53 pm - 11:50 pm
IND
-
ONT
5h 57m
1 stop
Frontier Logo
6:00 am - 8:04 pm
ONT
-
IND
11h 04m
1 stop
$300Frontier
Wed, Aug 19 - Mon, Aug 24
Frontier Logo
8:49 pm - 11:50 pm
IND
-
ONT
6h 01m
1 stop
Frontier Logo
6:00 am - 8:04 pm
ONT
-
IND
11h 04m
1 stop
$304Frontier
Sat, Jul 25 - Fri, Jul 31
Frontier Logo
8:53 pm - 10:04 am
IND
-
ONT
16h 11m
1 stop
Frontier Logo
6:00 am - 8:08 pm
ONT
-
IND
11h 08m
1 stop
$306Frontier
Tue, Jul 28 - Tue, Aug 4
Frontier Logo
8:53 pm - 10:04 am
IND
-
ONT
16h 11m
1 stop
Frontier Logo
6:00 am - 8:08 pm
ONT
-
IND
11h 08m
1 stop
$310Frontier
Sat, Aug 8 - Sat, Aug 15
Frontier Logo
8:53 pm - 11:50 pm
IND
-
ONT
5h 57m
1 stop
Frontier Logo
10:49 am - 8:08 pm
ONT
-
IND
6h 19m
1 stop
$312Frontier
Wed, Jul 29 - Sun, Aug 2
Frontier Logo
8:53 pm - 11:50 pm
IND
-
ONT
5h 57m
1 stop
Frontier Logo
6:00 am - 8:08 pm
ONT
-
IND
11h 08m
1 stop
$314Frontier
Fri, Aug 7 - Sun, Aug 9
Frontier Logo
8:53 pm - 11:50 pm
IND
-
ONT
5h 57m
1 stop
Frontier Logo
6:00 am - 7:58 pm
ONT
-
IND
10h 58m
1 stop
$318Frontier
Booking Insights

KAYAK's insights & trends for Indianapolis to Ontario flights

Get data-powered insights and trends into flights from Indianapolis to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Indianapolis to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Indianapolis to Ontario departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Indianapolis to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Indianapolis to Ontario is March, where tickets cost $333 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $571 and $490 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Indianapolis to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Indianapolis to Ontario, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$118
Best time to beat the crowds but there is an average 37% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Indianapolis to Ontario

When to book flights from Indianapolis to Ontario

Are your dates flexible? Find out the best times to travel from Indianapolis to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Indianapolis to Ontario

  • What is the cheapest flight from Indianapolis to Ontario?

    In the last 5 days, the lowest price for a flight from Indianapolis to Ontario was $118 for a one-way ticket and $240 for a round-trip.

  • Do I need a passport to fly between Indianapolis and Ontario?

    No, a passport isn't needed to fly from Indianapolis to Ontario. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Indianapolis to Ontario?

    Indianapolis airport is called Indianapolis and the only airport in Ontario is Ontario.

  • Which aircraft models fly most regularly from Indianapolis to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Indianapolis to Ontario?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Indianapolis and Ontario, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Indianapolis to Ontario, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Indianapolis to Ontario are Southwest and Delta. With an average price for the route of $458 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $417 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Indianapolis to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Indianapolis to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Indianapolis to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Indianapolis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Indianapolis to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Indianapolis with another airline. Booking your flights between Indianapolis and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Indianapolis to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Indianapolis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Indianapolis to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Indianapolis to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Indianapolis to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4249 reviews
8.1Boarding
7.0Food
8.0Comfort
8.6Crew
7.5Entertainment
Airline reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

2.0 MediocreIrene, Jun 2026
DEN - SFO
Read more Southwest reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Excellent! Only question is how we check in at exactly 24 hours in advance and end up at the end of the B boarding group

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

The flight in it self was good. The delays looking for pilots was unexpected.

Crew was real good, flight was smooth and came in early.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

Extremely dosappoontined and frustrated. Refused entry to lounge in Detroit despite having Delta AMEX Reserve linked in MyDelta phone app as revommended and also having proof of account. No pillows were available for overnight flight to AMS and breakfast was not served in Delta Comfort.

Delta flight overall it was goodT!the crew could do more and the food could be better.

Know that the movies that you are going to be offered are the oldest be rated movies they could possibly get. They may have one or two new movies that they keep advertising but when you’re flying 15 hours, there is nothing to see past the first new movie.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Flight was great. On time. Pleasant crew and responsible passengers. My only disappointment was that there was no coffee or tea offered. It was a short flight but a coffee would have been appreciated for what the price of tickets are now.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

April was the flight attendant in first class and was the most pleasant, cordial and efficient person I have seen on a flight in years. Good example of the type of people AA should hire to increase customer satisfacdtion.

Excellent accommodating crew at gate and on board. Baggage claim and gate checking were flawless.

Delayed 6 times. Eventually rebooked and missed a whole day of my vacation. Hot mess

Unfriendly gate staff and significant delay once we were on the plane.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

i was unable to check in the flight. refund requested

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Everything was on time and smoothly run. All employees appeared happy and enjoying their job. The delay in take-off was unrelated to anything in Frontier’s control. I wish there were a caffeine-fee, sugar free soda drink option besides water. There are multiple zero sugar caffeine free options.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

Everything you need to know for your flight from Indianapolis to Ontario

Information on your arrival and departure airports