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$62+ Cheap flights from Michigan to Ontario (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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Michigan to Ontario

Cheapest flights from Michigan to Ontario
Explore the most affordable flight options available from Michigan to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:20 pmDTW - ONT
1 stop14h 39mFrontier
Mon 12/296:00 pmONT - DTW
1 stop9h 54mFrontier
Deal found 12/15$233
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - ONT
1 stop13h 19mFrontier
Mon 1/56:20 pmONT - ORD
1 stop14h 29mFrontier
Deal found 12/16$234
This Mytrip deal was found by Cheapflights users on 12/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:01 pmDTW - ONT
1 stop28h 58mFrontier
Mon 12/296:00 amONT - DTW
1 stop21h 54mFrontier
Deal found 12/15$234
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:00 amORD - ONT
1 stop18h 59mFrontier
Wed 12/316:45 amONT - ORD
1 stop15h 27mFrontier
Deal found 12/15$235
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:01 pmDTW - ONT
1 stop28h 58mFrontier
Wed 12/316:00 amONT - DTW
1 stop21h 54mFrontier
Deal found 12/15$235
This CheapOair deal was found by Cheapflights users on 12/14. 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 12/2510:01 pmDTW - ONT
1 stop28h 58mFrontier
Wed 12/316:00 amONT - DTW
1 stop21h 54mFrontier
Deal found 12/14$255
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:01 pmDTW - ONT
1 stop28h 58mFrontier
Thu 12/256:07 pmONT - DTW
1 stop9h 47mFrontier
Deal found 12/15$259
This Trip.com deal was found by Cheapflights users on 12/16. 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.
Wed 12/247:00 amORD - ONT
1 stop18h 59mFrontier
Wed 12/316:45 amONT - ORD
1 stop15h 27mFrontier
Deal found 12/16$275
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:00 amORD - ONT
1 stop18h 59mFrontier
Thu 12/259:48 amONT - ORD
1 stop7h 04mFrontier
Deal found 12/15$278
This Travelocity deal was found by Cheapflights users on 12/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:20 pmDTW - ONT
1 stop14h 39mFrontier
Mon 1/56:00 pmONT - DTW
1 stop9h 54mFrontier
Deal found 12/15$284
This CheapOair deal was found by Cheapflights users on 12/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:01 pmDTW - ONT
1 stop28h 58mFrontier
Tue 12/306:00 amONT - DTW
1 stop21h 54mFrontier
Deal found 12/15$285
This Frontier deal was found by Cheapflights users on 12/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:14 pmDTW - ONT
1 stop9h 45mFrontier
Thu 1/16:45 amONT - DTW
1 stop6h 34mFrontier
Deal found 12/15$304

Find flight deals from Michigan to Ontario

Keep the following information in mind while searching for Michigan to Ontario flight deals. Data was last updated December 16, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$148
(Kiwi.com)

One-way from

$62
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$406
Provider with most accurate pricing for Detroit (DTT)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Los Angeles flights.
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From Michigan to Ontario
Search Deals
One-way flight from Michigan to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Michigan 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 December 16, 2025.
Use the filters below to find and compare flights from Michigan to Ontario that are best for you.

Fly from

Michigan

Fly to

Ontario

Route

Depart

Return

Price

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 1/14

7:30 am-10:51 pm

1 stop17h 21m

Ontario

Sun 1/18

7:30 am-1:22 pm

1 stop27h 52m

$305

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 1/30

5:15 pm-11:56 pm

1 stop9h 41m

Ontario

Tue 2/3

4:03 pm-4:19 pm

1 stop21h 16m

$306

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 1/21

5:15 pm-3:08 pm

1 stop24h 53m

Ontario

Wed 1/28

11:53 am-4:19 pm

1 stop25h 26m

$306

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Wed 1/14

5:13 pm-10:48 pm

1 stop8h 35m

Ontario

Wed 1/21

7:16 am-4:37 pm

1 stop6h 21m

$309

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Wed 1/21

6:00 am-11:31 am

1 stop8h 31m

Ontario

Mon 1/26

10:30 pm-11:04 am

1 stop9h 34m

$309

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 1/22

2:20 pm-11:58 pm

2 stops11h 38m

Ontario

Tue 1/27

7:30 am-9:43 pm

2 stops12h 13m

$316

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Wed 1/14

11:47 am-5:43 pm

2 stops8h 56m

Ontario

Wed 1/21

6:00 am-8:08 pm

2 stops11h 08m

$319

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 1/28

8:00 am-8:36 pm

1 stop14h 36m

Ontario

Sun 2/1

6:00 am-11:50 pm

1 stop15h 50m

$324

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Fri 2/27

3:54 pm-11:32 pm

1 stop9h 38m

Ontario

Tue 3/3

6:14 am-4:33 pm

1 stop8h 19m

$324

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 1/31

3:35 pm-10:59 am

1 stop21h 24m

Ontario

Tue 2/3

4:03 pm-2:38 pm

1 stop20h 35m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Michigan to Ontario

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

What is the cheapest month to book a flight from Michigan to Ontario?

Currently, May is the cheapest month in which you can book a flight from Michigan to Ontario (average of $82). Flying from Michigan to Ontario in November is currently the most expensive (average of $159). 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.

What is the cheapest time of day to fly from MI to ONT?

Find hourly flight availability from Michigan to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

When flying from Michigan to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 22% versus a flight in the morning.

What is the cheapest day to fly from Michigan to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Michigan to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Michigan to Ontario flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Michigan to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Michigan?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Michigan. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Michigan to Ontario?

    Departing from Michigan to Ontario will take you 8h 35m. The distance from Michigan to Ontario is about 1774 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Michigan to Ontario one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $65. American Airlines flights start at $146 while deals on United Airlines start at $159 one-way.

  • What are the most popular routes from Michigan to Ontario?

    The most popular route from Michigan to Ontario is Chicago O'Hare Intl - Ontario. You may also consider Detroit Metropolitan Wayne County - Ontario or Chicago Midway - Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Michigan 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 Michigan to Ontario?

    Currently, May is the cheapest month in which you can book a flight from Michigan to Ontario (average of $82). Flying from Michigan to Ontario in November is currently the most expensive (average of $159). 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 Michigan to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Michigan to Ontario

Discover the top 5 airlines that operate flights from Michigan 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$120Average$270FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$269Average$488FlexibilityNo cancel feeOn-time71%
DeltaCheapest$277Average$428FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$317Average$524FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$324Average$466FlexibilityNo cancel feeOn-time63%

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