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$109+ Cheap flights from Ontario (ONT) to Michigan

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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTW
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Ontario to Michigan

Keep the following information in mind while searching for Ontario to Michigan flight deals. Data was last updated July 30, 2025.

Round-trip from

$238
(Frontier)

One-way from

$109
(Trip.com)

Popular in

March

Cheapest in

January

Average price

$339
From Ontario to Michigan
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One-way flight from Ontario to Michigan
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Highest demand for flights based on searches. 9% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Ontario to Michigan

Cheapest flights from Ontario to Michigan
Explore the most affordable flight options available from Ontario to Michigan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1912:59 amONT - GRR
1 stop12h 02mFrontier
Wed 8/274:56 pmGRR - ONT
1 stop9h 54mFrontier
Deal found 7/30$238
This CheapOair deal was found by Cheapflights users on 7/29. 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.
Mon 8/1112:59 amONT - DTW
1 stop12h 21mFrontier
Tue 8/198:00 amDTW - ONT
1 stop18h 50mFrontier
Deal found 7/29$239
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3012:47 pmONT - SBN
1 stop6h 47mAmerican Airlines
Tue 9/97:36 amSBN - ONT
1 stop9h 18mAmerican Airlines
Deal found 7/30$247
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/312:59 amONT - ORD
1 stop6h 38mFrontier
Wed 9/107:20 amORD - ONT
1 stop26h 03mFrontier
Deal found 7/30$255
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:13 pmONT - MDW
1 stop6h 39mFrontier
Sun 9/2110:18 amMDW - ONT
1 stop9h 57mFrontier
Deal found 7/30$258
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:17 amONT - ORD
1 stop10h 00mAmerican Airlines
Sat 8/308:00 amORD - ONT
1 stop10h 24mAmerican Airlines
Deal found 7/30$274
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:45 amONT - SBN
1 stop7h 04mDelta
Wed 9/176:05 amSBN - ONT
1 stop7h 37mDelta
Deal found 7/29$277
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/810:53 amONT - TVC
2 stops10h 41mAmerican Airlines
Wed 9/171:54 pmTVC - ONT
1 stop10h 30mAmerican Airlines
Deal found 7/29$294
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:00 pmONT - MBS
2 stops9h 54mDelta
Tue 9/303:33 pmMBS - ONT
2 stops11h 09mDelta
Deal found 7/29$299
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:00 amONT - SBN
1 stop6h 18mUnited Airlines
Fri 9/194:55 pmSBN - ONT
1 stop8h 35mUnited Airlines
Deal found 7/28$302
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/237:05 amONT - ORD
1 stop7h 23mDelta
Sat 8/306:24 pmORD - ONT
1 stop6h 16mDelta
Deal found 7/30$305
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:39 amONT - ORD
1 stop8h 28mAlaska Airlines
Tue 9/236:20 amORD - ONT
1 stop9h 52mAlaska Airlines
Deal found 7/29$306

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Michigan 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 30, 2025.
Use the filters below to find and compare flights from Ontario to Michigan that are best for you.

Fly from

Ontario

Fly to

Michigan

Route

Depart

Return

Price

OntarioGrand Rapids

ONT - GRR

ONTGRR

Ontario

Tue 8/19

12:59 am-4:01 pm

1 stop12h 02m

Grand Rapids Gerald R. Ford Intl

Wed 8/27

4:56 pm-11:50 pm

1 stop9h 54m

$238

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 8/11

12:59 am-4:20 pm

1 stop12h 21m

Detroit Metropolitan Wayne County

Tue 8/19

8:00 am-11:50 pm

1 stop18h 50m

$239

OntarioSouth Bend

ONT - SBN

ONTSBN

Ontario

Sat 8/30

12:47 pm-10:34 pm

1 stop6h 47m

South Bend/Michiana

Tue 9/9

7:36 am-1:54 pm

1 stop9h 18m

$247

OntarioChicago

ONT - ORD

ONTORD

Ontario

Wed 9/3

12:59 am-9:37 am

1 stop6h 38m

Chicago O'Hare Intl

Wed 9/10

7:20 am-7:23 am

1 stop26h 03m

$255

OntarioChicago

ONT - MDW

ONTMDW

Ontario

Fri 9/19

12:13 pm-8:52 pm

1 stop6h 39m

Chicago Midway

Sun 9/21

10:18 am-6:15 pm

1 stop9h 57m

$258

OntarioChicago

ONT - ORD

ONTORD

Ontario

Tue 8/26

6:17 am-6:17 pm

1 stop10h 00m

Chicago O'Hare Intl

Sat 8/30

8:00 am-4:24 pm

1 stop10h 24m

$274

OntarioSouth Bend

ONT - SBN

ONTSBN

Ontario

Tue 9/9

11:45 am-9:49 pm

1 stop7h 04m

South Bend/Michiana

Wed 9/17

6:05 am-10:42 am

1 stop7h 37m

$277

OntarioTraverse City

ONT - TVC

ONTTVC

Ontario

Mon 9/8

10:53 am-12:34 am

2 stops10h 41m

Traverse City Cherry Capital

Wed 9/17

1:54 pm-9:24 pm

1 stop10h 30m

$294

OntarioBay City

ONT - MBS

ONTMBS

Ontario

Fri 9/26

10:00 pm-10:54 am

2 stops9h 54m

Bay City MBS Intl

Tue 9/30

3:33 pm-11:42 pm

2 stops11h 09m

$299

OntarioSouth Bend

ONT - SBN

ONTSBN

Ontario

Wed 9/10

7:00 am-4:18 pm

1 stop6h 18m

South Bend/Michiana

Fri 9/19

4:55 pm-10:30 pm

1 stop8h 35m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

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

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

Currently, April is the cheapest month in which you can book a flight from Ontario to Michigan (average of $257). Flying from Ontario to Michigan in March is currently the most expensive (average of $305). 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 ONT to MI?

Find hourly flight availability from Ontario to Michigan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Michigan as you normally would.

Reviews of airlines servicing Michigan

Get insights into the airlines that provide service to Michigan. 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 Michigan. Reviews last updated July 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Ontario to Michigan. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Michigan. 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 from for flights from Ontario to Michigan?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Michigan.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $117. Users have also found prices from $139 and $143 on Delta and Alaska Airlines, respectively.

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

    The most popular flight routes from Ontario to Michigan are Ontario - Chicago O'Hare Intl, Ontario - Chicago Midway and Ontario - Detroit Metropolitan Wayne County.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Ontario to Michigan (average of $257). Flying from Ontario to Michigan in March is currently the most expensive (average of $305). 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 Ontario to Michigan

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

Discover the top 6 airlines that operate flights from Ontario to Michigan. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$126Average$334FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$157Average$247FlexibilityNo cancel feeOn-time65%
DeltaCheapest$292Average$463FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$299Average$492FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$326Average$517FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$394Average$538FlexibilityNo cancel feeOn-time63%

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