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$78+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
1 adult, Economy
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Cheap flight deals from Michigan to Ontario

Keep the following information in mind while searching for Michigan to Ontario flight deals. Data was last updated septembre 15, 2025.

Round-trip from

$143
(eDestinos)

One-way from

$78
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$269
From Michigan to Ontario
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One-way flight from Michigan to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 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 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 septembre 15, 2025.

This eDestinos 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/48:25 amORD - ONT
1 stop24h 58mFrontier
mar. 10/77:04 amONT - ORD
1 stop14h 49mFrontier
Deal found 9/13$143
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/248:49 pmGRR - ONT
1 stop6h 01mFrontier
dim. 10/266:53 amONT - GRR
1 stop9h 56mFrontier
Deal found 9/13$145
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/238:49 pmGRR - ONT
1 stop6h 01mFrontier
dim. 10/266:53 amONT - GRR
1 stop9h 56mFrontier
Deal found 9/13$146
This Booking.com deal was found by Cheapflights users on 9/12. 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.
jeu. 10/24:20 pmGRR - ONT
1 stop18h 33mFrontier
dim. 10/58:59 pmONT - GRR
1 stop19h 39mFrontier
Deal found 9/12$147
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/310:42 amORD - ONT
1 stop11h 12mFrontier
ven. 10/1011:53 amONT - ORD
1 stop11h 06mFrontier
Deal found 9/14$148
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/166:00 amDTW - ONT
1 stop20h 50mFrontier
mer. 10/226:53 amONT - DTW
1 stop15h 06mFrontier
Deal found 9/13$148
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/25:35 amORD - ONT
1 stop16h 19mFrontier
mer. 10/86:53 amONT - ORD
1 stop15h 00mFrontier
Deal found 9/13$149
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/96:00 amDTW - ONT
1 stop6h 35mFrontier
mar. 10/147:04 amONT - DTW
1 stop14h 55mFrontier
Deal found 9/13$149
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 10/236:24 pmMDW - ONT
1 stop7h 26mFrontier
dim. 11/25:53 amONT - MDW
1 stop26h 37mFrontier
Deal found 9/13$150
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 10/3112:30 pmMDW - ONT
1 stop13h 20mFrontier
dim. 11/25:53 amONT - MDW
1 stop26h 37mFrontier
Deal found 9/13$151
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/254:03 pmORD - ONT
1 stop28h 32mFrontier
mar. 9/308:59 pmONT - ORD
1 stop22h 29mFrontier
Deal found 9/13$153
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/147:15 amORD - ONT
1 stop18h 35mFrontier
ven. 10/1712:32 pmONT - ORD
1 stop10h 12mFrontier
Deal found 9/13$154

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 septembre 15, 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

Grand RapidsOntario

GRR - ONT

GRRONT

Grand Rapids Gerald R. Ford Intl

jeu. 10/23

8:49 pm-11:50 pm

1 stop6h 01m

Ontario

dim. 10/26

6:53 am-7:49 pm

1 stop9h 56m

$146

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

sam. 10/11

7:55 am-11:50 pm

1 stop18h 55m

Ontario

mer. 10/15

6:53 am-12:59 am

1 stop15h 06m

$149

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jeu. 10/23

6:24 pm-11:50 pm

1 stop7h 26m

Ontario

dim. 10/26

6:53 am-11:16 am

1 stop26h 23m

$150

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jeu. 11/13

12:30 pm-11:50 pm

1 stop13h 20m

Ontario

lun. 11/17

7:54 am-5:59 pm

1 stop8h 05m

$154

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

ven. 11/7

12:30 pm-11:10 am

1 stop24h 40m

Ontario

lun. 11/10

8:24 am-5:15 pm

1 stop6h 51m

$156

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

dim. 11/9

6:30 am-6:49 pm

1 stop14h 19m

Ontario

sam. 11/15

12:05 pm-11:30 am

1 stop21h 25m

$156

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

dim. 11/9

6:30 am-6:49 pm

1 stop14h 19m

Ontario

lun. 11/10

8:24 am-5:15 pm

1 stop6h 51m

$158

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

ven. 11/7

8:55 am-6:28 pm

1 stop11h 33m

Ontario

ven. 11/14

8:24 am-5:15 pm

1 stop6h 51m

$158

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

ven. 10/17

9:00 am-4:28 pm

1 stop9h 28m

Ontario

lun. 10/20

6:53 am-12:24 am

1 stop15h 31m

$168

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

jeu. 10/30

5:14 pm-11:50 pm

1 stop9h 36m

Ontario

lun. 11/3

6:53 am-4:19 pm

1 stop6h 26m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, August is the cheapest month in which you can book a flight from Michigan to Ontario (average of $246). Flying from Michigan 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.

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 septembre 15, 2025.

When flying from Michigan to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 6h 01m. The distance from Michigan to Ontario is about 1824 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 $79. United Airlines flights start at $125 while deals on American Airlines start at $157 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, August is the cheapest month in which you can book a flight from Michigan to Ontario (average of $246). Flying from Michigan 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 Michigan to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Michigan to Ontario

Discover the top 6 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 septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$149Average$238FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$177Average$204FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$269Average$505FlexibilityNo cancel feeOn-time71%
DeltaCheapest$298Average$435FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$324Average$479FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$329Average$521FlexibilityNo cancel feeOn-time69%

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