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$767+ Cheap flights from Bloomington, IL to Ontario (BMI - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
BMI — ONT
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$767
(Delta)

Popular in

March

Cheapest in

August

Average price

$464
From Bloomington-Normal to Ontario
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Highest demand for flights based on searches. 11% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/13. 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 10/133:42 pmBMI - ONT
1 stop8h 40mDelta
Tue 10/1411:36 amONT - BMI
1 stop8h 41mDelta
Deal found 9/13$767
This Delta deal was found by Cheapflights users on 9/15. 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 9/153:39 pmBMI - ONT
1 stop8h 44mDelta
Fri 9/1911:55 amONT - BMI
1 stop8h 16mDelta
Deal found 9/15$865
This Delta deal was found by Cheapflights users on 9/15. 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 12/294:02 pmBMI - ONT
1 stop8h 57mDelta
Sat 1/311:45 amONT - BMI
1 stop8h 34mDelta
Deal found 9/15$989
This Delta deal was found by Cheapflights users on 9/13. 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 11/263:30 pmBMI - ONT
1 stop9h 34mDelta
Sat 11/2911:45 amONT - BMI
1 stop8h 21mDelta
Deal found 9/13$1,695

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 September 15, 2025.
Use the filters below to find and compare flights from Bloomington to Ontario that are best for you.

Fly from

Bloomington

Fly to

Ontario

Route

Depart

Return

Price

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Mon 10/13

3:42 pm-10:22 pm

1 stop8h 40m

Ontario

Tue 10/14

11:36 am-10:17 pm

1 stop8h 41m

$767

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Mon 12/29

4:02 pm-10:59 pm

1 stop8h 57m

Ontario

Sat 1/3

11:45 am-10:19 pm

1 stop8h 34m

$989

BloomingtonOntario

BMI - ONT

BMIONT

Bloomington-Normal

Wed 11/26

3:30 pm-11:04 pm

1 stop9h 34m

Ontario

Sat 11/29

11:45 am-10:06 pm

1 stop8h 21m

$1,695

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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.

Cheapflights Insights

Everything you need to know about your flight from Bloomington to Ontario

What is the cheapest month to book a flight from Bloomington, Illinois to Ontario?

Currently, August is the cheapest month in which you can book a flight from Bloomington, Illinois to Ontario (average of $246). Flying from Bloomington, Illinois to Ontario in March is currently the most expensive (average of $328). 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.

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 September 15, 2025.
See what other customers who have flown with American Airlines from Bloomington 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.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Diana,Jul 2024

ORD - IND

Shout out to Isabelle and Debbie who went above and beyond to make it a good experience. Wheelchair service and workers were excellent and much appreciated.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Diana,Jul 2024

ORD - IND

Shout out to Isabelle and Debbie who went above and beyond to make it a good experience. Wheelchair service and workers were excellent and much appreciated.

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 8h 40m. Fly via Delta to get the fastest option. Airlines will cover a distance of 1629 mi.

  • What is the cheapest airline to fly from Bloomington, Illinois to Ontario round-trip?

    Our cheapest airline available from Bloomington, Illinois to Ontario is American Airlines. Our recent data shows that you can find tickets from as low as $490 on this airline.

  • 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.

  • What is the cheapest month to book a flight from Bloomington, Illinois to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Bloomington, Illinois to Ontario (average of $246). Flying from Bloomington, Illinois to Ontario in March is currently the most expensive (average of $328). 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.

See more FAQs

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Alternative routes for Bloomington to Ontario

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Top airline flying from Bloomington to Ontario

Discover the top airline that operate flights from Bloomington 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$490Average$675FlexibilityNo cancel feeOn-time71%

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