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$80+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
apr. 5 — apr. 121
lør. 4/5
lør. 4/12
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 marts 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$218
(Trip.com)

One-way from

$80
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$344
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. 14% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in March 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 marts 31, 2025.

This Trip.com deal was found by Cheapflights users on 3/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 4/285:24 pmORD - ONT
1 stop8h 35mFrontier
tor. 5/16:35 pmONT - ORD
1 stop8h 35mFrontier
Deal found 3/30$207
This Trip.com deal was found by Cheapflights users on 3/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons. 4/238:15 pmDTW - ONT
1 stop14h 39mFrontier
tor. 4/2412:59 amONT - DTW
2 stops15h 26mFrontier
Deal found 3/30$218
This eDestinos deal was found by Cheapflights users on 3/31. 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.
tor. 4/242:40 pmMDW - ONT
1 stop28h 44mFrontier
søn. 4/278:44 amONT - MDW
1 stop28h 50mFrontier
Deal found 3/31$229
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lør. 5/36:15 amORD - ONT
1 stop7h 45mSouthwest
tir. 5/67:00 amONT - ORD
1 stop6h 00mSouthwest
Deal found 3/30$242
This Alaska Airlines deal was found by Cheapflights users on 3/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lør. 5/36:00 amORD - ONT
1 stop11h 32mAlaska Airlines
man. 5/56:24 pmONT - ORD
1 stop9h 41mAlaska Airlines
Deal found 3/30$246
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
man. 6/168:00 pmMDW - ONT
1 stop5h 55mSouthwest
fre. 6/208:05 pmONT - MDW
1 stop6h 55mSouthwest
Deal found 3/30$247
This American Airlines deal was found by Cheapflights users on 3/29. 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.
ons. 5/147:05 amORD - ONT
1 stop6h 46mAmerican Airlines
ons. 5/217:25 pmONT - ORD
1 stop7h 48mAmerican Airlines
Deal found 3/29$249
This Delta deal was found by Cheapflights users on 3/29. 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.
fre. 8/157:15 amORD - ONT
1 stop7h 08mDelta
fre. 8/1510:59 pmONT - ORD
1 stop9h 03mDelta
Deal found 3/29$257
This Delta deal was found by Cheapflights users on 3/30. 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.
lør. 5/34:00 pmMDW - ONT
1 stop8h 36mDelta
man. 5/55:30 pmONT - MDW
2 stops13h 10mDelta
Deal found 3/30$262
This CheapOair deal was found by Cheapflights users on 3/30. 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.
man. 5/58:54 pmGRR - ONT
1 stop6h 05mFrontier
tor. 5/812:16 pmONT - GRR
1 stop28h 38mFrontier
Deal found 3/30$270
This Delta deal was found by Cheapflights users on 3/30. 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.
lør. 4/191:24 pmSBN - ONT
1 stop9h 04mDelta
ons. 4/2312:07 pmONT - SBN
1 stop6h 39mDelta
Deal found 3/30$283
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre. 5/237:55 pmORD - ONT
Nonstop4h 31mUnited Airlines
søn. 6/17:00 amONT - ORD
Nonstop4h 03mUnited Airlines
Deal found 3/30$317

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 marts 31, 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

ORD - ONT

ORDONT

Chicago O'Hare Intl

man. 4/28

5:24 pm-11:59 pm

1 stop8h 35m

Ontario

tor. 5/1

6:35 pm-5:10 am

1 stop8h 35m

$207

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

ons. 4/23

8:15 pm-7:54 am

1 stop14h 39m

Ontario

tor. 4/24

12:59 am-7:25 pm

2 stops15h 26m

$218

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

tor. 4/24

2:40 pm-5:24 pm

1 stop28h 44m

Ontario

søn. 4/27

8:44 am-3:34 pm

1 stop28h 50m

$229

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

lør. 5/3

6:15 am-12:00 pm

1 stop7h 45m

Ontario

tir. 5/6

7:00 am-3:00 pm

1 stop6h 00m

$242

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

lør. 5/3

6:00 am-3:32 pm

1 stop11h 32m

Ontario

man. 5/5

6:24 pm-6:05 am

1 stop9h 41m

$246

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

man. 6/16

8:00 pm-11:55 pm

1 stop5h 55m

Ontario

fre. 6/20

8:05 pm-5:00 am

1 stop6h 55m

$247

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

ons. 5/14

7:05 am-11:51 am

1 stop6h 46m

Ontario

ons. 5/21

7:25 pm-5:13 am

1 stop7h 48m

$249

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

ons. 5/7

7:30 am-12:15 pm

1 stop6h 45m

Ontario

ons. 8/6

12:00 pm-9:21 pm

1 stop7h 21m

$257

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

lør. 5/3

4:00 pm-10:36 pm

1 stop8h 36m

Ontario

man. 5/5

5:30 pm-8:40 am

2 stops13h 10m

$262

Grand RapidsOntario

GRR - ONT

GRRONT

Grand Rapids Gerald R. Ford Intl

man. 5/5

8:54 pm-11:59 pm

1 stop6h 05m

Ontario

tor. 5/8

12:16 pm-7:54 pm

1 stop28h 38m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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 $326). 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 marts 31, 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 marts 31, 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
9,818 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,344 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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 $80. United Airlines flights start at $114 while deals on Hawaiian Airlines start at $123 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 $326). 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 marts 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$137Average$220FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$216FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$479FlexibilityNo cancel feeOn-time71%
DeltaCheapest$331Average$444FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$350Average$536FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$390Average$480FlexibilityNo cancel feeOn-time63%
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