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Ontario

$118+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$225
(Booking.com)

One-way from

$118
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$316
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. 13% potential increase in price ($44 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 June 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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/9. 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.
Mon 6/3010:07 pmDTW - ONT
1 stop26h 44mFrontier
Wed 7/97:22 pmONT - DTW
1 stop17h 06mFrontier
Deal found 6/9$225
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Fri 8/2212:31 pmORD - ONT
1 stop8h 03mFrontier
Sat 8/3012:59 amONT - ORD
1 stop7h 38mFrontier
Deal found 6/10$244
This Frontier deal was found by Cheapflights users on 6/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/142:44 pmMDW - ONT
1 stop11h 06mFrontier
Sun 8/1712:59 amONT - MDW
1 stop8h 42mFrontier
Deal found 6/12$255
This FlightHub deal was found by Cheapflights users on 6/10. 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 7/27:38 pmGRR - ONT
1 stop7h 12mFrontier
Fri 7/1112:59 amONT - GRR
1 stop14h 51mFrontier
Deal found 6/10$270
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 7/95:15 pmSBN - ONT
1 stop8h 12mDelta
Sat 7/1911:40 amONT - SBN
1 stop7h 09mDelta
Deal found 6/9$277
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:36 amSBN - ONT
2 stops11h 29mAmerican Airlines
Sun 9/711:59 pmONT - SBN
1 stop9h 05mAmerican Airlines
Deal found 6/12$282
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:51 pmDTW - ONT
1 stop10h 08mHawaiian Airlines
Tue 9/303:04 pmONT - DTW
1 stop11h 01mHawaiian Airlines
Deal found 6/11$296
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/162:52 pmGRR - ONT
1 stop7h 02mAmerican Airlines
Tue 9/2312:46 pmONT - GRR
1 stop8h 42mAmerican Airlines
Deal found 6/12$297
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 10/315:57 pmORD - ONT
1 stop28h 51mAlaska Airlines
Tue 11/116:00 amONT - ORD
1 stop15h 59mAlaska Airlines
Deal found 6/10$298
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 10/27:45 pmDTW - ONT
1 stop7h 14mAmerican Airlines
Wed 10/86:47 amONT - DTW
1 stop5h 41mAmerican Airlines
Deal found 6/11$298
This Southwest deal was found by Cheapflights users on 6/10. 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.
Sat 11/17:50 amGRR - ONT
1 stop6h 30mSouthwest
Mon 11/32:15 pmONT - GRR
1 stop5h 30mSouthwest
Deal found 6/10$306
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 11/112:56 pmGRR - ONT
2 stops10h 21mUnited Airlines
Mon 11/37:00 amONT - GRR
1 stop5h 48mUnited Airlines
Deal found 6/10$311

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 June 12, 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

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 6/30

10:07 pm-9:51 pm

1 stop26h 44m

Ontario

Wed 7/9

7:22 pm-3:28 pm

1 stop17h 06m

$225

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Fri 8/22

12:31 pm-6:34 pm

1 stop8h 03m

Ontario

Sat 8/30

12:59 am-10:37 am

1 stop7h 38m

$244

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 8/14

2:44 pm-11:50 pm

1 stop11h 06m

Ontario

Sun 8/17

12:59 am-11:41 am

1 stop8h 42m

$255

Grand RapidsOntario

GRR - ONT

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 7/2

7:38 pm-11:50 pm

1 stop7h 12m

Ontario

Fri 7/11

12:59 am-6:50 pm

1 stop14h 51m

$270

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Wed 7/9

5:15 pm-10:27 pm

1 stop8h 12m

Ontario

Sat 7/19

11:40 am-9:49 pm

1 stop7h 09m

$277

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Thu 9/4

7:36 am-4:05 pm

2 stops11h 29m

Ontario

Sun 9/7

11:59 pm-12:04 pm

1 stop9h 05m

$282

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 9/25

4:51 pm-11:59 pm

1 stop10h 08m

Ontario

Tue 9/30

3:04 pm-5:05 am

1 stop11h 01m

$296

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 10/2

7:45 pm-11:59 pm

1 stop7h 14m

Ontario

Wed 10/8

6:47 am-3:28 pm

1 stop5h 41m

$298

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 8/12

1:30 pm-11:40 pm

2 stops12h 10m

Ontario

Wed 8/13

9:50 am-6:07 pm

1 stop6h 17m

$324

Grand RapidsOntario

GRR - ONT

GRRONT

Grand Rapids Gerald R. Ford Intl

Thu 8/28

7:10 am-1:41 pm

1 stop9h 31m

Ontario

Sun 8/31

6:10 am-6:13 pm

1 stop9h 03m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 12, 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Michigan to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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 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.

  • 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 $122. Alaska Airlines flights start at $137 while deals on Hawaiian Airlines start at $141 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$137Average$206FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$220FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$467FlexibilityNo cancel feeOn-time71%
DeltaCheapest$298Average$421FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$527FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$388Average$480FlexibilityNo cancel feeOn-time63%

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