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$320+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
BMI — ONT
Jun 26 — Jul 31
Fri 6/26
Fri 7/3
1 adult, Economy
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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 May 27, 2026.

This Delta deal was found by Cheapflights users on 5/25. 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.
Thu 7/24:19 pm
BMI
-
ONT
1 stop7h 29m
Delta
Tue 7/1411:48 am
ONT
-
BMI
1 stop9h 00m
Delta
Deal found 5/25$374
This Delta deal was found by Cheapflights users on 5/25. 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.
Mon 6/294:19 pm
BMI
-
ONT
1 stop7h 29m
Delta
Wed 7/1511:48 am
ONT
-
BMI
1 stop9h 00m
Delta
Deal found 5/25$399
This Delta deal was found by Cheapflights users on 5/25. 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.
Thu 7/24:19 pm
BMI
-
ONT
1 stop7h 29m
Delta
Thu 7/1611:48 am
ONT
-
BMI
1 stop9h 00m
Delta
Deal found 5/25$459
This Delta deal was found by Cheapflights users on 5/25. 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.
Sun 7/54:19 pm
BMI
-
ONT
1 stop7h 29m
Delta
Tue 7/1411:48 am
ONT
-
BMI
1 stop9h 00m
Delta
Deal found 5/25$484
This American Airlines deal was found by Cheapflights users on 5/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:30 pm
BMI
-
ONT
1 stop8h 02m
American Airlines
Tue 7/141:11 pm
ONT
-
BMI
2 stops9h 24m
American Airlines
Deal found 5/25$489
This Delta deal was found by Cheapflights users on 5/25. 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.
Thu 7/94:18 pm
BMI
-
ONT
1 stop7h 32m
Delta
Thu 7/2311:48 am
ONT
-
BMI
1 stop9h 00m
Delta
Deal found 5/25$500
This Delta deal was found by Cheapflights users on 5/24. 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.
Mon 6/14:14 pm
BMI
-
ONT
1 stop7h 34m
Delta
Sat 6/612:07 pm
ONT
-
BMI
1 stop8h 23m
Delta
Deal found 5/24$509
This Delta deal was found by Cheapflights users on 5/24. 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.
Tue 6/26:00 am
BMI
-
ONT
2 stops12h 17m
Delta
Sat 6/612:07 pm
ONT
-
BMI
1 stop8h 23m
Delta
Deal found 5/24$514
This American Airlines deal was found by Cheapflights users on 5/24. 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.
Sat 7/184:30 pm
BMI
-
ONT
1 stop8h 02m
American Airlines
Tue 7/217:00 am
ONT
-
BMI
1 stop6h 56m
American Airlines
Deal found 5/24$519
This American Airlines deal was found by Cheapflights users on 5/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/304:22 pm
BMI
-
ONT
1 stop8h 17m
American Airlines
Tue 7/141:11 pm
ONT
-
BMI
2 stops9h 24m
American Airlines
Deal found 5/25$524
This Delta deal was found by Cheapflights users on 5/25. 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.
Sun 6/284:19 pm
BMI
-
ONT
1 stop7h 29m
Delta
Tue 7/1411:48 am
ONT
-
BMI
1 stop9h 00m
Delta
Deal found 5/25$525
This American Airlines deal was found by Cheapflights users on 5/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:02 pm
BMI
-
ONT
2 stops29h 55m
American Airlines
Tue 7/145:34 am
ONT
-
BMI
1 stop8h 22m
American Airlines
Deal found 5/25$527

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 May 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$374
(Delta)

One-way from

$320
(American Airlines)

Popular in

March

Cheapest in

April

Average price

$426
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. 10% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 27, 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

Sun 7/5

4:19 pm-9:48 pm

1 stop7h 29m

Ontario

Wed 7/15

11:48 am-10:48 pm

1 stop9h 00m

$484

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Fri 7/17

4:18 pm-9:50 pm

1 stop7h 32m

Ontario

Thu 7/23

11:48 am-10:48 pm

1 stop9h 00m

$500
Quickest round-trip

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Sat 7/18

4:30 pm-10:32 pm

1 stop8h 02m

Ontario

Sat 7/25

7:00 am-3:56 pm

1 stop6h 56m

$519

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Sun 6/28

4:19 pm-9:48 pm

1 stop7h 29m

Ontario

Tue 7/14

11:48 am-10:48 pm

1 stop9h 00m

$525

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Fri 7/17

4:18 pm-9:50 pm

1 stop7h 32m

Ontario

Tue 7/21

11:48 am-10:48 pm

1 stop9h 00m

$534

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Sun 7/5

4:19 pm-9:48 pm

1 stop7h 29m

Ontario

Thu 7/16

11:48 am-10:48 pm

1 stop9h 00m

$569

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Fri 7/17

4:18 pm-9:50 pm

1 stop7h 32m

Ontario

Fri 7/24

10:00 pm-11:23 am

1 stop11h 23m

$588

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Fri 7/17

4:18 pm-9:50 pm

1 stop7h 32m

Ontario

Sun 7/19

10:00 pm-11:23 am

1 stop11h 23m

$588

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Mon 7/20

4:30 pm-10:32 pm

1 stop8h 02m

Ontario

Tue 7/21

7:00 am-3:56 pm

1 stop6h 56m

$677

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Sun 7/5

4:19 pm-9:48 pm

1 stop7h 29m

Ontario

Fri 7/17

10:00 pm-9:47 pm

1 stop21h 47m

$698

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/22

Showing 1-10 of 13 resultsSorted by cheapest first
1
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  • 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 7h 29m. Fly via Delta or American Airlines to get the fastest option. Airlines will cover a distance of 1629 mi. This flight may include one or multiple stops.

  • 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

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