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Ontario

$92+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
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 July 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Wed 9/22:41 pm
ORD
-
ONT
1 stop11h 09m
Frontier
Tue 9/87:56 pm
ONT
-
ORD
1 stop12h 05m
Frontier
Deal found 7/23$190
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 9/1511:06 am
ORD
-
ONT
1 stop14h 49m
Frontier
Mon 9/216:00 am
ONT
-
ORD
1 stop26h 01m
Frontier
Deal found 7/23$194
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Wed 9/22:41 pm
ORD
-
ONT
1 stop11h 09m
Frontier
Wed 9/92:55 pm
ONT
-
ORD
1 stop17h 06m
Frontier
Deal found 7/23$195
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Wed 9/96:30 am
ORD
-
ONT
1 stop19h 17m
Frontier
Wed 9/166:15 am
ONT
-
ORD
1 stop16h 08m
Frontier
Deal found 7/26$197
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 8/179:57 pm
ORD
-
ONT
1 stop14h 07m
Frontier
Mon 8/2410:49 am
ONT
-
ORD
1 stop24h 47m
Frontier
Deal found 7/23$198
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Wed 9/2310:40 pm
ORD
-
ONT
1 stop27h 15m
Frontier
Wed 9/306:00 am
ONT
-
ORD
1 stop13h 35m
Frontier
Deal found 7/23$199
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:30 am
ORD
-
ONT
1 stop19h 17m
Frontier
Mon 9/2111:45 am
ONT
-
ORD
1 stop10h 38m
Frontier
Deal found 7/24$211
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:41 pm
ORD
-
ONT
1 stop11h 09m
Frontier
Wed 9/911:45 am
ONT
-
ORD
1 stop10h 38m
Frontier
Deal found 7/25$217
This eDestinos deal was found by Cheapflights users on 7/24. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:57 pm
ORD
-
ONT
1 stop14h 07m
Frontier
Tue 8/1810:59 am
ONT
-
ORD
1 stop27h 00m
Frontier
Deal found 7/24$219
This Southwest deal was found by Cheapflights users on 7/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:00 pm
MDW
-
ONT
Nonstop4h 10m
Southwest
Mon 8/2411:55 pm
ONT
-
MDW
Nonstop3h 50m
Southwest
Deal found 7/23$239
This Frontier deal was found by Cheapflights users on 7/26. 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 8/209:26 pm
MDW
-
ONT
1 stop13h 12m
Frontier
Mon 8/248:17 am
ONT
-
MDW
1 stop10h 14m
Frontier
Deal found 7/26$240
This Frontier deal was found by Cheapflights users on 7/22. 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 9/104:37 pm
GRR
-
ONT
1 stop10h 18m
Frontier
Tue 9/156:00 am
ONT
-
GRR
1 stop6h 42m
Frontier
Deal found 7/22$240

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 July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$190
(Kiwi.com)

One-way from

$92
(Trip.com)

Popular in

July

Cheapest in

January

Average price

$500
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.
Search Deals
From Michigan to Ontario
Search Deals
One-way flight from Michigan to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 27, 2026.
Use the filters below to find and compare flights from Michigan to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 10/8

11:55 am-2:10 pm

Nonstop4h 15m

Ontario

Mon 10/12

11:55 pm-5:40 am

Nonstop3h 45m

$239

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Mon 8/17

2:00 pm-4:10 pm

Nonstop4h 10m

Ontario

Mon 8/24

11:55 pm-5:45 am

Nonstop3h 50m

$239

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Tue 9/15

2:40 pm-7:00 pm

1 stop6h 20m

Ontario

Mon 9/21

11:55 pm-5:45 am

Nonstop3h 50m

$249

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Sat 10/3

5:10 am-11:10 am

1 stop8h 00m

Ontario

Tue 10/6

11:55 pm-5:40 am

Nonstop3h 45m

$249

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Mon 11/23

3:35 pm-9:55 pm

1 stop8h 20m

Ontario

Wed 12/2

10:50 am-4:35 pm

Nonstop3h 45m

$254

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 8/29

7:48 am-12:16 pm

1 stop6h 28m

Ontario

Sat 9/5

1:06 pm-9:33 pm

1 stop6h 27m

$259

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Wed 9/9

5:20 pm-9:00 pm

1 stop5h 40m

Ontario

Wed 9/16

1:10 pm-11:25 pm

1 stop8h 15m

$259

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 10/1

8:20 pm-10:49 pm

Nonstop4h 29m

Ontario

Wed 10/7

1:24 pm-9:52 pm

1 stop6h 28m

$349

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 9/1

8:06 pm-10:35 pm

Nonstop4h 29m

Ontario

Tue 9/8

1:18 pm-9:59 pm

1 stop6h 41m

$349

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Thu 8/27

8:06 pm-10:35 pm

Nonstop4h 29m

Ontario

Mon 8/31

7:13 pm-7:16 am

1 stop10h 03m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 60 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Michigan to Ontario (average of $386). Flying from Michigan to Ontario in April is currently the most expensive (average of $528). 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.

How much does it cost to fly round-trip from Michigan to Ontario?

Airfare is below average for this route at the moment.
Michigan to Ontario flights typically cost between $316 and $584 in August.
The cheapest round-trip price found within the last 5 days was $264 on Frontier (Aug 18-Aug 26).

How far ahead should I book a flight from Michigan to Ontario?

Booking 53 days in advance of your planned departure date is, on average, the best time to get cheap flights from Michigan to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 4h 15m. The distance from Michigan to Ontario is about 1701 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 $148 while deals on Delta start at $165 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, October is the cheapest month in which you can book a flight from Michigan to Ontario (average of $386). Flying from Michigan to Ontario in April is currently the most expensive (average of $528). 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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$294FlexibilityNo cancel feeOn-time62%
DeltaCheapest$277Average$531FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$281Average$531FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$324Average$477FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$344Average$465FlexibilityNo cancel feeOn-time69%

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