$80+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ONT
May 9 — May 161
Round-trip
1 adult, Economy
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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.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.Cheap flight deals from Indianapolis to Ontario
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Best
Last-minute
One-way
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 April 9, 2026.
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 April 9, 2026.
This CheapOair deal was found by Cheapflights users on 4/6. 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 4/308:46 pm
IND
- ONT
1 stop6h 09m
Frontier
Sun 5/312:59 am
ONT
- IND
1 stop16h 01m
Frontier
Deal found 4/6![Frontier logo]()
$160
This CheapOair deal was found by Cheapflights users on 4/6. 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.
Mon 4/271:52 pm
IND
- ONT
1 stop23h 52m
Frontier
Sat 5/212:59 am
ONT
- IND
1 stop15h 57m
Frontier
Deal found 4/6![Frontier logo]()
$171
This Expedia deal was found by Cheapflights users on 4/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:39 pm
IND
- ONT
1 stop16h 26m
Frontier
Mon 5/186:00 am
ONT
- IND
1 stop10h 54m
Frontier
Deal found 4/6![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:46 pm
IND
- ONT
1 stop16h 19m
Frontier
Mon 5/116:00 am
ONT
- IND
1 stop10h 54m
Frontier
Deal found 4/5![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 4/6. 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 4/244:07 pm
IND
- ONT
1 stop10h 51m
Frontier
Sun 4/269:29 pm
ONT
- IND
1 stop12h 28m
Frontier
Deal found 4/6![Frontier logo]()
$200
This CheapOair deal was found by Cheapflights users on 4/5. 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 5/18:46 pm
IND
- ONT
1 stop6h 09m
Frontier
Sat 5/212:59 am
ONT
- IND
1 stop15h 57m
Frontier
Deal found 4/5![Frontier logo]()
$205
This Booking.com deal was found by Cheapflights users on 4/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:46 pm
IND
- ONT
1 stop6h 09m
Frontier
Sun 5/312:59 am
ONT
- IND
1 stop16h 01m
Frontier
Deal found 4/6![Frontier logo]()
$207
This Frontier deal was found by Cheapflights users on 4/8. 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 5/218:39 pm
IND
- ONT
1 stop6h 10m
Frontier
Mon 6/16:00 am
ONT
- IND
1 stop10h 54m
Frontier
Deal found 4/8![Frontier logo]()
$210
This CheapOair deal was found by Cheapflights users on 4/6. 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 4/238:46 pm
IND
- ONT
1 stop13h 45m
Frontier
Sun 4/269:29 pm
ONT
- IND
1 stop12h 28m
Frontier
Deal found 4/6![Frontier logo]()
$211
Best flights from Indianapolis to OntarioDiscover 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 April 9, 2026.
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 April 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:10 am
IND
- ONT
1 stop10h 22m
Alaska Airlines
Wed 5/66:00 am
ONT
- IND
1 stop8h 57m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 4/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/104:19 pm
IND
- ONT
2 stops10h 26m
Delta
Fri 6/121:00 pm
ONT
- IND
1 stop7h 10m
Delta
Deal found 4/4![Delta logo]()
$437
This United Airlines deal was found by Cheapflights users on 4/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/303:25 pm
IND
- ONT
1 stop8h 11m
United Airlines
Mon 5/46:59 pm
ONT
- IND
1 stop8h 34m
United Airlines
Deal found 4/4![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 4/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:10 pm
IND
- ONT
2 stops12h 24m
Delta
Sat 5/235:45 pm
ONT
- IND
2 stops13h 08m
Delta
Deal found 4/5![Delta logo]()
$477
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:39 pm
IND
- ONT
1 stop8h 19m
Alaska Airlines
Sat 5/164:03 pm
ONT
- IND
1 stop10h 42m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 4/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/141:48 pm
IND
- ONT
1 stop7h 13m
Delta
Sun 8/1610:59 pm
ONT
- IND
1 stop6h 57m
Delta
Deal found 4/8![Delta logo]()
$477
This United Airlines deal was found by Cheapflights users on 4/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:47 pm
IND
- ONT
2 stops12h 11m
United Airlines
Fri 5/87:00 am
ONT
- IND
1 stop8h 54m
United Airlines
Deal found 4/5![United Airlines logo]()
$543
This Delta deal was found by Cheapflights users on 4/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:10 am
IND
- ONT
1 stop6h 54m
Delta
Sun 8/167:00 am
ONT
- IND
1 stop7h 03m
Delta
Deal found 4/8![Delta logo]()
$497
This Delta deal was found by Cheapflights users on 4/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:10 am
IND
- ONT
1 stop6h 54m
Delta
Fri 8/217:00 am
ONT
- IND
1 stop7h 03m
Delta
Deal found 4/7![Delta logo]()
$497
Last-minute flights from Indianapolis to OntarioDiscover last-minute flight deals from Indianapolis to Ontario. Data last updated April 9, 2026 and is based on user searches.
Discover last-minute flight deals from Indianapolis to Ontario. Data last updated April 9, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/6. 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 4/238:46 pm
IND
- ONT
1 stop13h 45m
Frontier
Sun 4/269:29 pm
ONT
- IND
1 stop12h 28m
Frontier
Deal found 4/6![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 4/6. 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 4/244:07 pm
IND
- ONT
1 stop10h 51m
Frontier
Sun 4/269:29 pm
ONT
- IND
1 stop12h 28m
Frontier
Deal found 4/6![Frontier logo]()
$200
This CheapOair deal was found by Cheapflights users on 4/6. 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.
Mon 4/271:52 pm
IND
- ONT
1 stop23h 52m
Frontier
Sat 5/212:59 am
ONT
- IND
1 stop15h 57m
Frontier
Deal found 4/6![Frontier logo]()
$171
This CheapOair deal was found by Cheapflights users on 4/6. 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 4/308:46 pm
IND
- ONT
1 stop6h 09m
Frontier
Sun 5/312:59 am
ONT
- IND
1 stop16h 01m
Frontier
Deal found 4/6![Frontier logo]()
$160
This CheapOair deal was found by Cheapflights users on 4/5. 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 5/18:46 pm
IND
- ONT
1 stop6h 09m
Frontier
Sat 5/212:59 am
ONT
- IND
1 stop15h 57m
Frontier
Deal found 4/5![Frontier logo]()
$205
This Booking.com deal was found by Cheapflights users on 4/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:46 pm
IND
- ONT
1 stop6h 09m
Frontier
Sun 5/312:59 am
ONT
- IND
1 stop16h 01m
Frontier
Deal found 4/6![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:46 pm
IND
- ONT
1 stop16h 19m
Frontier
Mon 5/116:00 am
ONT
- IND
1 stop10h 54m
Frontier
Deal found 4/5![Frontier logo]()
$198
This Expedia deal was found by Cheapflights users on 4/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:39 pm
IND
- ONT
1 stop16h 26m
Frontier
Mon 5/186:00 am
ONT
- IND
1 stop10h 54m
Frontier
Deal found 4/6![Frontier logo]()
$185
This Frontier deal was found by Cheapflights users on 4/8. 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 5/218:39 pm
IND
- ONT
1 stop6h 10m
Frontier
Mon 6/16:00 am
ONT
- IND
1 stop10h 54m
Frontier
Deal found 4/8![Frontier logo]()
$210
One-way flights from Indianapolis to OntarioSearch for one-way flight options from Indianapolis to Ontario. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
Search for one-way flight options from Indianapolis to Ontario. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
This Frontier deal was found by Cheapflights users on 4/6. 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 4/308:46 pm
IND
- ONT
1 stop6h 09m
Frontier
Deal found 4/6![Frontier logo]()
$80
This Booking.com deal was found by Cheapflights users on 4/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:46 pm
IND
- ONT
1 stop16h 19m
Frontier
Deal found 4/6![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 4/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:08 pm
IND
- ONT
1 stop8h 47m
Frontier
Deal found 4/5![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 4/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/201:52 pm
IND
- ONT
1 stop9h 12m
Frontier
Deal found 4/6![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 4/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:07 pm
IND
- ONT
1 stop10h 51m
Frontier
Deal found 4/8![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 4/6. 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 5/158:39 pm
IND
- ONT
1 stop6h 10m
Frontier
Deal found 4/6![Frontier logo]()
$105
This Super.com deal was found by Cheapflights users on 4/8. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:39 pm
IND
- ONT
1 stop16h 26m
Frontier
Deal found 4/8![Frontier logo]()
$110
This Expedia deal was found by Cheapflights users on 4/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:39 pm
IND
- ONT
1 stop16h 26m
Frontier
Deal found 4/8![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 4/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:14 pm
IND
- ONT
2 stops24h 51m
Frontier
Deal found 4/7![Frontier logo]()
$113
This Trip.com deal was found by Cheapflights users on 4/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:00 am
IND
- ONT
1 stop13h 25m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$115
This CheapOair deal was found by Cheapflights users on 4/6. 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.
Mon 5/188:39 pm
IND
- ONT
1 stop16h 26m
Frontier
Deal found 4/6![Frontier logo]()
$117
Find flight deals from Indianapolis to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) to Ontario (ONT). 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 April 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $160 (Expedia) |
One-way from | $80 (Frontier) |
Popular in | December |
Cheapest in | July |
Average price | $436 |
Cheapflights Fare Finder
Customize your flight search to find flights from Indianapolis to Ontario 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 April 9, 2026.
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
Cheapest round-trip
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Tue 5/5
7:10 am-2:32 pm
1 stop10h 22m
Ontario
Wed 5/6
6:00 am-5:57 pm
1 stop8h 57m
$412
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Wed 6/10
4:19 pm-11:45 pm
2 stops10h 26m
Ontario
Fri 6/12
1:00 pm-11:10 pm
1 stop7h 10m
$437
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Fri 5/15
2:10 pm-11:34 pm
2 stops12h 24m
Ontario
Sat 5/23
5:45 pm-9:53 am
2 stops13h 08m
$477
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Fri 8/14
1:48 pm-6:01 pm
1 stop7h 13m
Ontario
Sun 8/16
10:59 pm-8:56 am
1 stop6h 57m
$477
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Fri 5/15
6:39 pm-11:58 pm
1 stop8h 19m
Ontario
Sat 5/16
4:03 pm-5:45 am
1 stop10h 42m
$494
Quickest round-trip
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Sat 8/15
7:10 am-11:04 am
1 stop6h 54m
Ontario
Sun 8/16
7:00 am-5:03 pm
1 stop7h 03m
$497
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Sat 8/15
7:10 am-11:04 am
1 stop6h 54m
Ontario
Fri 8/21
7:00 am-5:03 pm
1 stop7h 03m
$497
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Thu 4/30
3:25 pm-8:36 pm
1 stop8h 11m
Ontario
Mon 5/4
6:59 pm-6:33 am
1 stop8h 34m
$499
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Mon 5/4
12:47 pm-9:58 pm
2 stops12h 11m
Ontario
Fri 5/8
7:00 am-6:54 pm
1 stop8h 54m
$543
Cheapest one-way
IndianapolisOntario
IND - ONT
INDONT
Indianapolis
Fri 4/24
4:07 pm-11:58 pm
1 stop10h 51m
$104
Showing 1-10 of 20 resultsSorted by cheapest first
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Indianapolis-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Indianapolis-Ontario flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
IND-ONT
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?
Use this chart to determine the optimal time to book a round-trip flight from Indianapolis to Ontario. Price data was last updated on April 3, 2026.
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 9 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, July is the cheapest month in which you can book a flight from Indianapolis to Ontario (average of $65). Flying from Indianapolis to Ontario in April is currently the most expensive (average of $216). 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.
How much does it cost to fly round-trip from Indianapolis to Ontario?
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 9, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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.
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 9, 2026.
Indianapolis and Ontario flights
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Top 5 airlines flying from Indianapolis to Ontario
Discover the top 5 airlines that operate flights from Indianapolis to Ontario. 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 April 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$163 | Average$248 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$401 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$271 | Average$379 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$316 | Average$430 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$324 | Average$442 | FlexibilityNo cancel fee | On-time71% |