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Cheap flights from Detroit to Ontario from C$ 195

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 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
1 May — 8 May1
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 1 April 2026.

Mon 11/57:55 a.m.
DTW
-
ONT
1 stop29h 10m
Frontier
Fri 15/56:00 a.m.
ONT
-
DTW
1 stop14h 59m
Frontier
Deal found 29/3C$ 258
Fri 22/51:20 p.m.
DTW
-
ONT
1 stop23h 45m
Frontier
Mon 25/56:00 a.m.
ONT
-
DTW
1 stop27h 35m
Frontier
Deal found 28/3C$ 286
Tue 12/58:52 a.m.
DTW
-
ONT
1 stop25h 43m
Frontier
Sat 16/510:50 a.m.
ONT
-
DTW
1 stop22h 45m
Frontier
Deal found 27/3C$ 301
Sat 23/58:52 a.m.
DTW
-
ONT
1 stop25h 43m
Frontier
Sun 31/58:06 p.m.
ONT
-
DTW
1 stop19h 37m
Frontier
Deal found 27/3C$ 308
Mon 20/410:27 p.m.
DTW
-
ONT
1 stop28h 28m
Frontier
Sun 26/412:59 a.m.
ONT
-
DTW
1 stop17h 43m
Frontier
Deal found 30/3C$ 313
Fri 1/510:05 a.m.
DTW
-
ONT
1 stop9h 33m
Frontier
Tue 5/510:50 a.m.
ONT
-
DTW
1 stop10h 09m
Frontier
Deal found 31/3C$ 315
Thu 21/57:55 a.m.
DTW
-
ONT
1 stop18h 54m
Frontier
Fri 5/68:06 p.m.
ONT
-
DTW
1 stop19h 37m
Frontier
Deal found 28/3C$ 336
Sun 5/47:45 a.m.
DTW
-
ONT
1 stop27h 19m
Frontier
Wed 8/410:03 p.m.
ONT
-
DTW
1 stop5h 57m
Frontier
Deal found 29/3C$ 355
Fri 15/51:20 p.m.
DTW
-
ONT
1 stop13h 29m
Frontier
Tue 19/510:50 a.m.
ONT
-
DTW
1 stop10h 09m
Frontier
Deal found 30/3C$ 375
Wed 29/47:09 a.m.
DTW
-
ONT
1 stop10h 23m
Multiple Airlines
Tue 5/510:50 a.m.
ONT
-
DTW
1 stop10h 09m
Multiple Airlines
Deal found 31/3C$ 386
Thu 16/410:27 p.m.
DTW
-
ONT
1 stop12h 04m
Frontier
Sun 19/412:59 a.m.
ONT
-
DTW
1 stop17h 43m
Frontier
Deal found 29/3C$ 393
Fri 12/61:22 p.m.
DTW
-
ONT
1 stop13h 27m
Frontier
Sun 14/610:50 a.m.
ONT
-
DTW
1 stop10h 09m
Frontier
Deal found 31/3C$ 405

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 1 April 2026.

Round-trip from

C$ 258

One-way from

C$ 195

Popular in

January

Cheapest in

September

Average price

C$ 483
Frontier
  • Frontier
  • 11/5-15/5
  • 2 total stops
  • 44h 09m total
  • Detroit to Ontario
Search Deals
25/4
  • 25/4
  • 1 total stop
  • 17h 12m total
  • Detroit to Ontario
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 257 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 1 April 2026.
Use the filters below to find and compare flights from Detroit to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 25/4

12:15 p.m.-4:25 p.m.

1 stop7h 10m

Ontario

Wed 6/5

10:15 p.m.-10:23 a.m.

1 stop9h 08m

C$ 495

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 12/5

3:00 p.m.-9:48 p.m.

1 stop9h 48m

Ontario

Sat 16/5

6:00 a.m.-3:18 p.m.

1 stop6h 18m

C$ 497
Quickest round-trip

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 21/4

12:15 p.m.-4:25 p.m.

1 stop7h 10m

Ontario

Tue 28/4

7:05 a.m.-4:51 p.m.

1 stop6h 46m

C$ 553

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 25/4

9:03 a.m.-12:38 p.m.

1 stop6h 35m

Ontario

Wed 6/5

6:59 p.m.-10:06 a.m.

2 stops12h 07m

C$ 641
Cheapest one-way

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 19/5

5:43 p.m.-11:34 p.m.

1 stop8h 51m

C$ 248

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 25/4

5:14 p.m.-10:32 p.m.

1 stop8h 18m

C$ 249

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/5

12:15 p.m.-6:33 p.m.

1 stop9h 18m

C$ 277

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 12/5

11:15 a.m.-8:36 p.m.

2 stops12h 21m

C$ 326

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 10/6

8:35 a.m.-12:10 p.m.

1 stop6h 35m

C$ 333

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 4/5

8:15 p.m.-11:44 p.m.

1 stop6h 29m

C$ 333

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/3

Showing 1-10 of 15 resultsSorted by cheapest first
1
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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, August is the cheapest month in which you can book a flight from Detroit to Ontario (average of C$ 145). Flying from Detroit to Ontario in January is currently the most expensive (average of C$ 226). 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 67% 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$ 471.

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?

    Delta can get you from Detroit to Ontario in just under 7h 10m. Your travel time can differ by up to . Detroit and Ontario are separated by a distance of 3104 km.

  • 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$ 505. Southwest is currently priced 12% 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, August is the cheapest month in which you can book a flight from Detroit to Ontario (average of C$ 145). Flying from Detroit to Ontario in January is currently the most expensive (average of C$ 226). 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 1 April 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 505AverageC$ 624FlexibilityNo 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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