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$65+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Michigan to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Michigan (USMI) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(Frontier)

One-way from

$65
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$245
Provider with most accurate pricing for Detroit (DTT)-Los Angeles flight deals.
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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. 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 January 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 January 30, 2025.

This Trip.com deal was found by Cheapflights users on 1/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/112:43 pmDTW - ONT
1 stop12h 21mFrontier
Wed 3/1912:59 amONT - DTW
1 stop9h 54mFrontier
Deal found 1/29$126
This Booking.com deal was found by Cheapflights users on 1/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/76:40 amMDW - ONT
1 stop19h 29mFrontier
Sat 3/89:35 pmONT - MDW
1 stop5h 55mFrontier
Deal found 1/29$169
This Booking.com deal was found by Cheapflights users on 1/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/97:59 pmORD - ONT
1 stop13h 27mFrontier
Wed 3/1212:59 amONT - ORD
1 stop21h 24mFrontier
Deal found 1/29$174
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Sat 3/84:10 pmORD - ONT
1 stop6h 47mUnited Airlines
Tue 3/116:00 amONT - ORD
1 stop9h 06mUnited Airlines
Deal found 1/28$242
This Delta deal was found by Cheapflights users on 1/29. 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.
Sun 3/27:18 pmORD - ONT
1 stop6h 33mDelta
Thu 3/61:21 pmONT - ORD
1 stop6h 06mDelta
Deal found 1/29$257
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/13:41 pmMDW - ONT
1 stop9h 11mDelta
Wed 3/51:10 pmONT - MDW
1 stop7h 10mDelta
Deal found 1/28$273
This Southwest deal was found by Cheapflights users on 1/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:00 amORD - ONT
1 stop11h 35mSouthwest
Tue 3/115:45 amONT - ORD
1 stop8h 40mSouthwest
Deal found 1/29$297
This Justfly.com deal was found by Cheapflights users on 1/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:00 pmORD - ONT
1 stop10h 37mAlaska Airlines
Mon 9/226:55 pmONT - ORD
1 stop8h 09mAlaska Airlines
Deal found 1/29$301
This Delta deal was found by Cheapflights users on 1/30. 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 4/192:13 pmMBS - ONT
2 stops11h 28mDelta
Fri 4/2510:59 pmONT - MBS
2 stops11h 31mDelta
Deal found 1/30$319
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Wed 2/1912:36 pmSBN - ONT
1 stop8h 59mAmerican Airlines
Fri 2/2811:59 pmONT - SBN
1 stop9h 07mAmerican Airlines
Deal found 1/29$333
This Delta deal was found by Cheapflights users on 1/30. 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.
Thu 3/136:00 amGRR - ONT
1 stop8h 36mDelta
Thu 3/206:00 amONT - GRR
2 stops9h 07mDelta
Deal found 1/30$342
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 3/141:33 pmORD - ONT
1 stop9h 20mAmerican Airlines
Sun 3/167:35 pmONT - ORD
1 stop7h 33mAmerican Airlines
Deal found 1/29$359

Find flights from Michigan to Ontario within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/22

2:28 pm-7:09 pm

1 stop7h 41m

Ontario

Thu 2/27

7:58 pm-11:00 am

1 stop12h 02m

$130

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Fri 2/21

6:50 am-12:09 am

1 stop19h 19m

Ontario

Sun 2/23

7:18 pm-8:24 am

1 stop11h 06m

$175

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 3/27

6:40 am-12:09 am

1 stop19h 29m

Ontario

Sun 3/30

12:59 am-12:17 am

1 stop21h 18m

$175

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 4/29

11:19 am-7:42 pm

1 stop10h 23m

Ontario

Fri 5/2

10:59 pm-10:02 am

1 stop9h 03m

$257

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 2/28

5:05 pm-10:52 pm

1 stop7h 47m

Ontario

Wed 3/5

1:10 pm-10:20 pm

1 stop7h 10m

$308

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Sat 4/19

2:13 pm-10:41 pm

2 stops11h 28m

Ontario

Fri 4/25

10:59 pm-1:30 pm

2 stops11h 31m

$319

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 4/8

2:43 pm-11:59 pm

1 stop12h 16m

Ontario

Tue 4/15

6:00 am-9:10 pm

2 stops12h 10m

$332

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Wed 2/19

12:36 pm-6:35 pm

1 stop8h 59m

Ontario

Fri 2/28

11:59 pm-12:06 pm

1 stop9h 07m

$333

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Tue 2/25

7:45 am-4:59 pm

2 stops11h 14m

Ontario

Fri 2/28

7:14 pm-5:53 am

1 stop8h 39m

$333

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 4/30

8:45 am-2:50 pm

1 stop8h 05m

Ontario

Mon 5/5

3:10 pm-1:16 am

1 stop8h 06m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Showing 1-10 of 57 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.

Travel insights for flights from Michigan to Ontario

Get recent, data-driven insights about flights from Michigan to Ontario including ideal travel times, pricing trends, and more.

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 $310). 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 January 30, 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 January 30, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,585 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,686 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,450 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
8,906 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,585 reviews

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

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 $65. United Airlines flights start at $124 while deals on Delta start at $129 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 Chicago Midway - Ontario or Detroit Metropolitan Wayne County - 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 $310). 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$137Average$228FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$219FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$282Average$657FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$483FlexibilityNo cancel feeOn-time71%
DeltaCheapest$331Average$522FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$386Average$493FlexibilityNo cancel feeOn-time63%
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