HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$359+ Cheap flights from Bloomington, IL to Ontario (BMI - 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
BMI — ONT
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bloomington 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 Bloomington to Ontario

Cheapest flights from Bloomington to Ontario
Explore the most affordable flight options available from Bloomington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.

This United Airlines deal was found by Cheapflights users on 4/25. 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 9/101:32 pm
BMI
-
ONT
1 stop6h 47m
United Airlines
Sun 9/137:00 am
ONT
-
BMI
1 stop8h 52m
United Airlines
Deal found 4/25$469
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 6/39:44 am
BMI
-
ONT
2 stops9h 44m
United Airlines
Sat 6/66:30 am
ONT
-
BMI
1 stop5h 53m
United Airlines
Deal found 4/28$474
This Delta deal was found by Cheapflights users on 4/25. 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 5/94:14 pm
BMI
-
ONT
1 stop7h 34m
Delta
Wed 5/1312:08 pm
ONT
-
BMI
1 stop8h 22m
Delta
Deal found 4/25$479
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/164:22 pm
BMI
-
ONT
1 stop8h 18m
American Airlines
Thu 6/252:18 pm
ONT
-
BMI
1 stop6h 50m
American Airlines
Deal found 4/23$483
This Delta deal was found by Cheapflights users on 4/25. 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 5/96:00 am
BMI
-
ONT
2 stops12h 17m
Delta
Tue 5/1212:08 pm
ONT
-
BMI
1 stop8h 22m
Delta
Deal found 4/25$484
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Sat 8/19:44 am
BMI
-
ONT
2 stops12h 58m
United Airlines
Mon 8/106:39 pm
ONT
-
BMI
2 stops12h 18m
United Airlines
Deal found 4/26$507
This Delta deal was found by Cheapflights users on 4/26. 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.
Thu 5/144:14 pm
BMI
-
ONT
1 stop7h 34m
Delta
Tue 5/1912:08 pm
ONT
-
BMI
1 stop8h 22m
Delta
Deal found 4/26$514
This United Airlines deal was found by Cheapflights users on 4/25. 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 9/101:32 pm
BMI
-
ONT
1 stop6h 47m
United Airlines
Mon 9/141:18 pm
ONT
-
BMI
2 stops8h 54m
United Airlines
Deal found 4/25$529

Find flight deals from Bloomington to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Bloomington (BMI) 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 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$469
(United Airlines)

One-way from

$359
(Delta)

Popular in

March

Cheapest in

August

Average price

$676
Provider with most accurate pricing for Bloomington-Normal-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bloomington-Normal-Ontario flights.
Search Deals
From Bloomington-Normal to Ontario
Search Deals
One-way flight from Bloomington-Normal to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bloomington 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 28, 2026.
Use the filters below to find and compare flights from Bloomington to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Fri 8/21

1:32 pm-6:19 pm

1 stop6h 47m

Ontario

Sat 8/29

7:00 am-5:52 pm

1 stop8h 52m

$469

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Thu 9/10

1:32 pm-10:58 pm

2 stops11h 26m

Ontario

Sun 9/13

7:00 am-5:52 pm

1 stop8h 52m

$474

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Fri 9/11

9:44 am-9:59 pm

2 stops14h 15m

Ontario

Sun 9/13

7:00 am-5:52 pm

1 stop8h 52m

$474

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Sat 8/1

9:44 am-8:42 pm

2 stops12h 58m

Ontario

Mon 8/10

6:39 pm-8:57 am

2 stops12h 18m

$507

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Thu 9/10

1:32 pm-6:19 pm

1 stop6h 47m

Ontario

Mon 9/14

1:18 pm-12:12 am

2 stops8h 54m

$529

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Wed 6/3

2:58 pm-10:46 pm

1 stop9h 48m

Ontario

Sat 6/6

6:30 am-2:23 pm

1 stop5h 53m

$533

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Fri 9/11

9:44 am-9:59 pm

2 stops14h 15m

Ontario

Mon 9/14

1:18 pm-12:12 am

2 stops8h 54m

$534

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Sat 7/25

9:44 am-9:55 pm

2 stops14h 11m

Ontario

Tue 8/4

6:30 am-2:23 pm

1 stop5h 53m

$584
Quickest round-trip

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Thu 9/10

6:01 am-11:04 am

1 stop7h 03m

Ontario

Mon 9/14

12:00 pm-10:22 pm

1 stop8h 22m

$603
Cheapest one-way
Quickest one-way

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Thu 5/14

4:14 pm-9:48 pm

1 stop7h 34m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Showing 1-10 of 13 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Bloomington, Illinois-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bloomington, Illinois-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bloomington, Illinois-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bloomington, Illinois-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 Bloomington, Illinois-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 Bloomington to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Bloomington 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.

Related info for your journey

Find useful and relevant information for your journey from Bloomington 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 Bloomington, Illinois to Ontario?

    There are many flights that can get you from Bloomington, Illinois to Ontario in 6h 47m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 1629 mi.

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

    Yes. In addition to deals on Bloomington to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bloomington to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bloomington to Ontario.

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

    Yes. Cheapflights offers flight deals from Bloomington 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.

See more FAQs

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 Bloomington to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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
Midway to Las Vegas flights
O'Hare Intl to Ontario flights
Midway to Los Angeles flights
O'Hare Intl to Santa Ana flights
St. Louis to Las Vegas flights
Midway to San Francisco flights
O'Hare Intl to Sacramento flights
O'Hare Intl to San Jose flights
O'Hare Intl to Reno flights
O'Hare Intl to Burbank flights
O'Hare Intl to Oakland flights
St. Louis to San Francisco flights
Midway to San Diego flights
St. Louis to San Diego flights
St. Louis to Los Angeles flights
O'Hare Intl to Santa Barbara flights
O'Hare Intl to Palm Springs flights
O'Hare Intl to Fresno flights
Rockford to Las Vegas flights
Midway to Reno flights
Midway to Sacramento flights
St. Louis to Reno flights
Midway to San Jose flights
Midway to Palm Springs flights
St. Louis to Sacramento flights
Moline to Las Vegas flights
Midway to Ontario flights
St. Louis to Ontario flights
Midway to Fresno flights
Midway to Oakland flights
St. Louis to San Jose flights
O'Hare Intl to Long Beach flights
O'Hare Intl to Monterey flights
St. Louis to Oakland flights
Bloomington to Las Vegas flights
St. Louis to Santa Ana flights
Peoria to Las Vegas flights
Midway to Long Beach flights
Moline to Los Angeles flights
St. Louis to Fresno flights
St. Louis to Palm Springs flights
O'Hare Intl to Bakersfield flights
Moline to San Francisco flights

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.