HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$76+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Michigan to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(Booking.com)

One-way from

$76
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$300
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. 15% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 24, 2025.

This Frontier deal was found by Cheapflights users on 4/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/162:28 pmDTW - ONT
1 stop12h 31mFrontier
Sat 5/246:00 amONT - DTW
1 stop6h 26mFrontier
Deal found 4/23$188
This Booking.com deal was found by Cheapflights users on 4/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/308:33 pmGRR - ONT
1 stop15h 42mFrontier
Sat 6/75:21 pmONT - GRR
1 stop23h 26mFrontier
Deal found 4/23$198
This Frontier deal was found by Cheapflights users on 4/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/58:40 amORD - ONT
1 stop11h 07mFrontier
Fri 5/92:28 pmONT - ORD
1 stop12h 42mFrontier
Deal found 4/23$218
This Booking.com deal was found by Cheapflights users on 4/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:03 pmMDW - ONT
1 stop5h 56mFrontier
Wed 5/1411:58 pmONT - MDW
1 stop17h 10mFrontier
Deal found 4/23$218
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/117:55 pmORD - ONT
Nonstop4h 31mUnited Airlines
Sun 6/157:00 amONT - ORD
Nonstop4h 03mUnited Airlines
Deal found 4/23$227
This Southwest deal was found by Cheapflights users on 4/23. 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.
Wed 6/118:05 pmMDW - ONT
Nonstop4h 10mSouthwest
Sun 6/155:00 amONT - MDW
Nonstop3h 50mSouthwest
Deal found 4/23$227
This American Airlines deal was found by Cheapflights users on 4/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/72:40 pmORD - ONT
1 stop6h 21mAmerican Airlines
Fri 6/1312:59 amONT - ORD
1 stop7h 11mAmerican Airlines
Deal found 4/22$246
This Delta deal was found by Cheapflights users on 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/244:30 pmORD - ONT
1 stop7h 46mDelta
Thu 6/121:15 pmONT - ORD
1 stop6h 54mDelta
Deal found 4/23$257
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:00 amMDW - ONT
1 stop7h 08mDelta
Sat 6/712:18 pmONT - MDW
1 stop6h 55mDelta
Deal found 4/22$257
This American Airlines deal was found by Cheapflights users on 4/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/215:00 amDTW - ONT
1 stop7h 50mAmerican Airlines
Wed 5/286:15 amONT - DTW
1 stop9h 36mAmerican Airlines
Deal found 4/23$263
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/36:00 amORD - ONT
1 stop11h 50mAlaska Airlines
Thu 6/57:30 amONT - ORD
1 stop14h 26mAlaska Airlines
Deal found 4/23$266
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:00 amDTW - ONT
2 stops9h 14mUnited Airlines
Tue 8/127:00 amONT - DTW
1 stop7h 13mUnited Airlines
Deal found 4/23$268

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 April 24, 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

Fri 5/16

2:28 pm-11:59 pm

1 stop12h 31m

Ontario

Sat 5/24

6:00 am-3:26 pm

1 stop6h 26m

$188

Grand RapidsOntario

GRR - ONT

GRRONT

Grand Rapids Gerald R. Ford Intl

Fri 5/30

8:33 pm-9:15 am

1 stop15h 42m

Ontario

Sat 6/7

5:21 pm-7:47 pm

1 stop23h 26m

$198

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 5/5

8:40 am-5:47 pm

1 stop11h 07m

Ontario

Fri 5/9

2:28 pm-5:10 am

1 stop12h 42m

$218

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 5/8

8:03 pm-11:59 pm

1 stop5h 56m

Ontario

Wed 5/14

11:58 pm-7:08 pm

1 stop17h 10m

$218

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Wed 6/11

7:55 pm-10:26 pm

Nonstop4h 31m

Ontario

Sun 6/15

7:00 am-1:03 pm

Nonstop4h 03m

$227

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Wed 6/11

8:05 pm-10:15 pm

Nonstop4h 10m

Ontario

Sun 6/15

5:00 am-10:50 am

Nonstop3h 50m

$227

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 6/7

2:40 pm-7:01 pm

1 stop6h 21m

Ontario

Fri 6/13

12:59 am-10:10 am

1 stop7h 11m

$246

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Sat 5/24

4:30 pm-10:16 pm

1 stop7h 46m

Ontario

Thu 6/12

1:15 pm-10:09 pm

1 stop6h 54m

$257

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Sat 5/31

6:00 am-11:08 am

1 stop7h 08m

Ontario

Sat 6/7

12:18 pm-9:13 pm

1 stop6h 55m

$257

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 5/21

5:00 am-9:50 am

1 stop7h 50m

Ontario

Wed 5/28

6:15 am-6:51 pm

1 stop9h 36m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 60 results
1
2
3
...
6

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 April 24, 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 April 24, 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
9,918 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 $76. United Airlines flights start at $114 while deals on Southwest start at $114 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Michigan to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
Newark to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Seattle to Los Angeles flights
O'Hare Intl to Las Vegas flights
John F Kennedy Intl to Las Vegas flights
Newark to San Francisco flights
Seattle to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
LaGuardia to Los Angeles flights
LaGuardia to Las Vegas flights
Dulles Intl to Los Angeles flights
San Jose to Los Angeles flights
Hobby to Las Vegas flights
San Francisco to Los Angeles flights
Denver to Las Vegas flights
Reagan-National to Los Angeles flights
Los Angeles to Las Vegas flights
San Francisco to Las Vegas flights
Santa Ana to Las Vegas flights
Dulles Intl to Las Vegas flights
Boston to Los Angeles flights
John F Kennedy Intl to Ontario flights
Burbank to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Los Angeles to San Francisco flights
Oakland to Los Angeles flights
O'Hare Intl to Los Angeles flights
Boston to Las Vegas flights
Oakland to Las Vegas flights
Baltimore to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Los Angeles to San Jose flights
Baltimore to Los Angeles flights
Seattle to Santa Ana flights
John F Kennedy Intl to San Diego flights
Newark to Burbank flights
Minneapolis to Las Vegas flights
Reagan-National to Las Vegas flights
Dulles Intl to San Francisco flights
Los Angeles to Oakland flights
LaGuardia to San Francisco flights
Midway to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
Reagan-National to San Francisco flights
Atlanta to Las Vegas flights
Seattle to San Diego flights
San Jose to Las Vegas flights
Seattle to Burbank flights

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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$137Average$208FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$217FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$473FlexibilityNo cancel feeOn-time71%
DeltaCheapest$331Average$452FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$350Average$531FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$388Average$476FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.