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$57+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
nov 29 — dic 61
sab 11/29
sab 12/6
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 ottobre 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$125
(Frontier)

One-way from

$57
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$288
Provider with most accurate pricing for Detroit (DTT)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Los Angeles flights.
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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 ($25 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 October 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 ottobre 30, 2025.

This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 11/136:00 amORD - ONT
1 stop7h 10mFrontier
gio 11/131:46 pmONT - ORD
1 stop7h 58mFrontier
Deal found 10/28$125
This CheapOair deal was found by Cheapflights users on 10/29. 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.
gio 11/131:36 pmORD - ONT
1 stop7h 13mFrontier
lun 11/171:46 pmONT - ORD
1 stop7h 58mFrontier
Deal found 10/29$130
This CheapOair deal was found by Cheapflights users on 10/30. 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.
gio 11/139:39 pmMDW - ONT
1 stop11h 50mFrontier
sab 11/1512:05 pmONT - MDW
1 stop21h 25mFrontier
Deal found 10/30$130
This CheapOair deal was found by Cheapflights users on 10/29. 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.
gio 11/138:49 pmGRR - ONT
1 stop17h 21mFrontier
gio 11/2012:23 pmONT - GRR
1 stop24h 26mFrontier
Deal found 10/29$130
This CheapOair deal was found by Cheapflights users on 10/30. 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.
lun 11/175:14 pmDTW - ONT
1 stop9h 36mFrontier
mer 11/198:00 amONT - DTW
1 stop19h 05mFrontier
Deal found 10/30$130
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
gio 12/47:00 amORD - ONT
1 stop6h 09mFrontier
sab 12/136:15 amONT - ORD
1 stop27h 27mFrontier
Deal found 10/28$131
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 12/87:00 amORD - ONT
1 stop9h 25mFrontier
lun 12/153:20 pmONT - ORD
1 stop6h 52mFrontier
Deal found 10/29$133
This CheapOair deal was found by Cheapflights users on 10/30. 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.
dom 12/77:00 amORD - ONT
1 stop10h 06mFrontier
gio 12/116:15 amONT - ORD
1 stop27h 27mFrontier
Deal found 10/30$134
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 12/1511:01 amORD - ONT
1 stop26h 26mFrontier
mer 12/316:45 amONT - ORD
1 stop15h 27mFrontier
Deal found 10/30$135
This CheapOair deal was found by Cheapflights users on 10/30. 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.
ven 11/146:00 amORD - ONT
1 stop19h 50mFrontier
lun 11/171:46 pmONT - ORD
1 stop7h 58mFrontier
Deal found 10/30$137
This CheapOair deal was found by Cheapflights users on 10/29. 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.
gio 11/136:30 amMDW - ONT
1 stop14h 19mFrontier
dom 11/161:46 pmONT - MDW
1 stop20h 51mFrontier
Deal found 10/29$137
This Frontier deal was found by Cheapflights users on 10/29. 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.
ven 11/145:14 pmDTW - ONT
1 stop9h 36mFrontier
lun 11/177:54 amONT - DTW
1 stop7h 18mFrontier
Deal found 10/29$137

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 ottobre 30, 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

MDW - ONT

MDWONT

Chicago Midway

gio 11/13

6:30 am-6:49 pm

1 stop14h 19m

Ontario

dom 11/16

1:46 pm-12:37 pm

1 stop20h 51m

$137

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

lun 11/17

6:30 am-6:49 pm

1 stop14h 19m

Ontario

dom 11/23

12:58 am-2:31 pm

1 stop11h 33m

$206

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

lun 11/10

6:30 am-6:39 pm

1 stop14h 09m

Ontario

mer 11/12

8:45 am-11:30 am

1 stop24h 45m

$226

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

mar 2/3

6:00 am-11:54 am

1 stop8h 54m

Ontario

lun 2/9

10:30 pm-11:14 am

1 stop9h 44m

$289

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

gio 12/11

6:00 am-11:02 am

1 stop8h 02m

Ontario

lun 1/12

10:30 pm-11:14 am

1 stop9h 44m

$289

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

mar 2/3

6:00 am-11:54 am

1 stop8h 54m

Ontario

mar 2/10

1:04 pm-11:19 pm

1 stop7h 15m

$289

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

sab 1/31

1:35 pm-9:07 pm

1 stop10h 32m

Ontario

mar 2/10

10:30 pm-11:14 am

1 stop9h 44m

$289

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

sab 1/24

6:00 am-12:47 pm

2 stops9h 47m

Ontario

sab 1/31

6:00 am-8:08 pm

2 stops11h 08m

$299

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

gio 12/4

8:10 am-4:09 pm

2 stops10h 59m

Ontario

mer 12/10

6:00 am-9:42 pm

2 stops12h 42m

$299

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

mar 4/21

3:30 pm-11:44 pm

2 stops11h 14m

Ontario

mar 4/28

10:59 pm-11:13 am

2 stops9h 14m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 $83). Flying from Michigan to Ontario in November is currently the most expensive (average of $158). 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 ottobre 30, 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 40% 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 54m. 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 $118. Alaska Airlines flights start at $159 while deals on Delta start at $189 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 $83). Flying from Michigan to Ontario in November is currently the most expensive (average of $158). 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

Browse thousands of different options on Cheapflights for your next trip

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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 ottobre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$162Average$319FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$269Average$496FlexibilityNo cancel feeOn-time71%
DeltaCheapest$298Average$442FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$317Average$533FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$324Average$469FlexibilityNo cancel feeOn-time63%

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