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Cheap flights from Detroit to Ontario from C$ 112

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Detroit to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Detroit to Ontario
Explore the most affordable flight options available from Detroit to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Sat 21/25:21 p.m.
DTW
-
ONT
1 stop9h 38m
Frontier
Mon 2/36:10 a.m.
ONT
-
DTW
1 stop8h 57m
Frontier
Deal found 31/1C$ 215
Sat 21/25:21 p.m.
DTW
-
ONT
1 stop9h 38m
Frontier
Tue 24/28:35 a.m.
ONT
-
DTW
1 stop12h 20m
Frontier
Deal found 30/1C$ 260
Sat 21/25:21 p.m.
DTW
-
ONT
1 stop9h 38m
Frontier
Thu 26/22:08 p.m.
ONT
-
DTW
1 stop6h 47m
Frontier
Deal found 30/1C$ 275
Sat 21/25:21 p.m.
DTW
-
ONT
1 stop9h 38m
Frontier
Sat 28/26:00 a.m.
ONT
-
DTW
1 stop14h 55m
Frontier
Deal found 31/1C$ 279
Sun 22/27:15 a.m.
DTW
-
ONT
1 stop10h 14m
Frontier
Mon 2/36:10 a.m.
ONT
-
DTW
1 stop8h 57m
Frontier
Deal found 31/1C$ 291
Sun 22/27:15 a.m.
DTW
-
ONT
1 stop10h 14m
Frontier
Tue 24/28:35 a.m.
ONT
-
DTW
1 stop12h 20m
Frontier
Deal found 30/1C$ 293
Sun 22/27:15 a.m.
DTW
-
ONT
1 stop10h 14m
Frontier
Thu 26/22:08 p.m.
ONT
-
DTW
1 stop6h 47m
Frontier
Deal found 30/1C$ 308
Sun 1/32:35 p.m.
DTW
-
ONT
2 stops26h 55m
Multiple Airlines
Sun 8/36:15 a.m.
ONT
-
DTW
1 stop25h 44m
Multiple Airlines
Deal found 1/2C$ 309
Sat 28/210:28 a.m.
DTW
-
ONT
2 stops13h 22m
United Airlines
Wed 4/31:45 p.m.
ONT
-
DTW
1 stop5h 46m
United Airlines
Deal found 1/2C$ 357
Tue 24/28:00 a.m.
DTW
-
ONT
1 stop7h 07m
Delta
Tue 24/210:20 p.m.
ONT
-
DTW
1 stop8h 10m
Delta
Deal found 30/1C$ 377
Sat 21/25:21 p.m.
DTW
-
ONT
1 stop9h 38m
Frontier
Sun 1/32:08 p.m.
ONT
-
DTW
1 stop6h 47m
Frontier
Deal found 31/1C$ 387

Find flight deals from Detroit to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) 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 2 February 2026.

Round-trip from

C$ 215

One-way from

C$ 112

Popular in

January

Cheapest in

September

Average price

C$ 493
Frontier
  • Frontier
  • 21/2-2/3
  • 2 total stops
  • 18h 35m total
  • Detroit to Ontario
Search Deals
Frontier
  • Frontier
  • 17/3
  • 1 total stop
  • 15h 05m total
  • Detroit to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit 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 629,999 searches. Data last updated 2 February 2026.
Use the filters below to find and compare flights from Detroit to Ontario that are best for you.

Fly from

Detroit

Fly to

Ontario

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 28/2

10:28 a.m.-8:50 p.m.

2 stops13h 22m

Ontario

Wed 4/3

1:45 p.m.-10:31 p.m.

1 stop5h 46m

C$ 357

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 24/2

8:00 a.m.-12:07 p.m.

1 stop7h 07m

Ontario

Tue 24/2

10:20 p.m.-9:30 a.m.

1 stop8h 10m

C$ 377

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 23/2

5:55 p.m.-11:49 p.m.

1 stop8h 54m

Ontario

Fri 27/2

1:10 p.m.-12:09 a.m.

1 stop7h 59m

C$ 467

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 7/5

4:30 p.m.-9:54 p.m.

1 stop8h 24m

Ontario

Sun 10/5

11:04 p.m.-11:09 a.m.

1 stop9h 05m

C$ 467

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 1/4

6:10 p.m.-10:20 p.m.

1 stop7h 10m

Ontario

Thu 9/4

12:40 p.m.-12:15 a.m.

2 stops8h 35m

C$ 468

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 24/2

4:43 p.m.-8:50 p.m.

1 stop7h 07m

Ontario

Wed 25/2

1:45 p.m.-10:31 p.m.

1 stop5h 46m

C$ 472

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 29/4

7:09 a.m.-2:32 p.m.

1 stop10h 23m

Ontario

Mon 4/5

7:59 p.m.-4:14 p.m.

1 stop17h 15m

C$ 477

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 28/2

10:28 a.m.-8:50 p.m.

2 stops13h 22m

Ontario

Tue 3/3

6:10 a.m.-8:22 p.m.

2 stops11h 12m

C$ 486

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 25/2

5:45 a.m.-3:08 p.m.

2 stops12h 23m

Ontario

Sat 28/2

6:14 a.m.-9:26 p.m.

2 stops12h 12m

C$ 501

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 21/2

4:43 p.m.-8:50 p.m.

1 stop7h 07m

Ontario

Sat 28/2

5:00 a.m.-2:55 p.m.

1 stop6h 55m

C$ 527

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/1

Showing 1-10 of 23 results
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Best time to book a flight from Detroit to Ontario

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

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

Currently, February is the cheapest month in which you can book a flight from Detroit to Ontario (average of C$ 140). Flying from Detroit to Ontario in June is currently the most expensive (average of C$ 216). 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.

How much does it cost to fly round-trip from Detroit to Ontario?

What’s the top layover airport for flights from Detroit to Ontario?

Share of one-stop round-trip flights from Detroit to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 82% of one-stop itineraries from Detroit to Ontario on Cheapflights.

What’s the cheapest layover airport for flights from Detroit to Ontario?

Average round-trip fare for 1-stop flights from Detroit to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of C$ 404.

What’s the fastest layover option from Detroit to Ontario?

Shortest average travel time for 1-stop one-way flights from Detroit to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 51m.

Which airport typically offers the quickest layover for flights from Detroit to Ontario?

Average layover duration for 1-stop one-way flights from Detroit to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 18m.

Related info for your journey

Find useful and relevant information for your journey from Detroit to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Detroit to Ontario?

    United Airlines and Delta can get you from Detroit to Ontario in just under 7h 07m. Your travel time can differ by up to 6h 15m. Detroit and Ontario are separated by a distance of 3104 km. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Detroit to Ontario round-trip?

    Cheapflights users have booked flights from Detroit to Ontario round-trip from C$ 493. Southwest is currently priced 8% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Detroit to Ontario (average of C$ 140). Flying from Detroit to Ontario in June is currently the most expensive (average of C$ 216). 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

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Top airline flying from Detroit to Ontario

Discover the top airline that operate flights from Detroit 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 629,999 searches. Data last updated 2 February 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 493AverageC$ 610FlexibilityNo cancel feeOn-time63%
Search Southwest flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Detroit to Ontario?

Cheapflights helps you search for flights from Detroit to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Detroit to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Detroit by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Detroit to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Detroit to Ontario flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Detroit to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Detroit to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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