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Cheap flights from Detroit to Ontario from C$ 219

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
16 Jun — 23 Jun1
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 17 May 2026.

Mon 24/81:22 p.m.
DTW
-
ONT
1 stop13h 27m
Frontier
Sat 29/810:50 a.m.
ONT
-
DTW
1 stop10h 09m
Frontier
Deal found 12/5C$ 337
Wed 15/78:52 a.m.
DTW
-
ONT
1 stop11h 57m
Frontier
Wed 22/73:40 p.m.
ONT
-
DTW
1 stop12h 41m
Frontier
Deal found 13/5C$ 371
Wed 29/78:52 a.m.
DTW
-
ONT
1 stop11h 57m
Frontier
Tue 4/810:49 a.m.
ONT
-
DTW
1 stop10h 10m
Frontier
Deal found 14/5C$ 373
Fri 17/71:19 p.m.
DTW
-
ONT
1 stop23h 44m
Frontier
Mon 20/76:00 a.m.
ONT
-
DTW
1 stop27h 34m
Frontier
Deal found 12/5C$ 386
Sat 1/88:52 a.m.
DTW
-
ONT
1 stop11h 57m
Frontier
Wed 12/810:49 a.m.
ONT
-
DTW
1 stop10h 10m
Frontier
Deal found 15/5C$ 390
Fri 31/78:00 a.m.
DTW
-
ONT
1 stop18h 50m
Frontier
Wed 12/810:49 a.m.
ONT
-
DTW
1 stop10h 10m
Frontier
Deal found 14/5C$ 396
Wed 3/68:52 a.m.
DTW
-
ONT
1 stop25h 16m
Frontier
Wed 10/65:43 p.m.
ONT
-
DTW
1 stop22h 08m
Frontier
Deal found 15/5C$ 412
Sat 4/78:52 a.m.
DTW
-
ONT
1 stop12h 00m
Frontier
Fri 10/710:49 a.m.
ONT
-
DTW
1 stop10h 10m
Frontier
Deal found 15/5C$ 418
Tue 2/68:20 a.m.
DTW
-
ONT
1 stop28h 45m
Frontier
Thu 9/75:43 p.m.
ONT
-
DTW
1 stop22h 17m
Frontier
Deal found 13/5C$ 423
Sat 10/107:20 a.m.
DTW
-
ONT
1 stop6h 23m
Frontier
Sat 17/1011:38 a.m.
ONT
-
DTW
1 stop9h 46m
Frontier
Deal found 16/5C$ 426

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 17 May 2026.

Round-trip from

C$ 337

One-way from

C$ 219

Popular in

January

Cheapest in

September

Average price

C$ 756
Frontier
  • Frontier
  • 24/8-29/8
  • 2 total stops
  • 23h 36m total
  • Detroit to Ontario
Search Deals
Frontier
  • Frontier
  • 6/6
  • 1 total stop
  • 25h 11m total
  • Detroit to Ontario
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (C$ 61 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 17 May 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

Thu 20/8

6:55 a.m.-12:00 p.m.

2 stops8h 05m

Ontario

Tue 25/8

9:40 a.m.-9:30 p.m.

2 stops8h 50m

C$ 603

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 25/8

7:34 a.m.-8:53 p.m.

2 stops16h 19m

Ontario

Wed 26/8

5:00 a.m.-2:27 p.m.

1 stop6h 27m

C$ 731
Quickest round-trip

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 1/6

5:55 p.m.-9:57 p.m.

1 stop7h 02m

Ontario

Thu 4/6

1:11 p.m.-10:24 p.m.

1 stop6h 13m

C$ 748

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 12/9

1:51 p.m.-11:24 p.m.

2 stops12h 33m

Ontario

Thu 17/9

7:57 p.m.-11:59 a.m.

2 stops13h 02m

C$ 756

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 27/5

7:09 a.m.-3:09 p.m.

1 stop11h 00m

Ontario

Tue 7/7

5:26 p.m.-5:41 a.m.

1 stop9h 15m

C$ 763

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 6/6

4:30 p.m.-9:48 p.m.

1 stop8h 18m

Ontario

Fri 12/6

10:00 p.m.-9:25 a.m.

1 stop8h 25m

C$ 781

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 10/10

7:00 a.m.-1:19 p.m.

1 stop9h 19m

Ontario

Sun 25/10

6:00 a.m.-9:04 p.m.

2 stops12h 04m

C$ 910

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 31/7

1:34 p.m.-11:11 p.m.

2 stops12h 37m

Ontario

Wed 12/8

5:54 p.m.-5:41 a.m.

1 stop8h 47m

C$ 910

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 17/9

5:36 p.m.-11:24 p.m.

1 stop8h 48m

Ontario

Sun 20/9

7:57 p.m.-11:59 a.m.

2 stops13h 02m

C$ 910

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 1/6

3:00 p.m.-9:15 p.m.

2 stops9h 15m

Ontario

Tue 2/6

10:30 a.m.-9:35 p.m.

2 stops8h 05m

C$ 925

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/5

Showing 1-10 of 23 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from Detroit to Ontario (average of C$ 190). Flying from Detroit to Ontario in November is currently the most expensive (average of C$ 439). 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.

Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of C$ 630.

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?

    Southwest, United Airlines, and American Airlines can get you from Detroit to Ontario in just under 7h 02m. Your travel time can differ by up to 9h 17m. 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$ 498. Southwest is currently priced 14% 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, January is the cheapest month in which you can book a flight from Detroit to Ontario (average of C$ 190). Flying from Detroit to Ontario in November is currently the most expensive (average of C$ 439). 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 17 May 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 498AverageC$ 616FlexibilityNo 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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