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Cheap flights from Detroit to Ontario from C$ 231

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 25/12. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
17 Jan — 24 Jan1
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 18 December 2025.

Thu 25/1210:01 p.m.DTW - ONT
1 stop28h 58mFrontier
Mon 29/126:00 a.m.ONT - DTW
1 stop21h 54mFrontier
Deal found 15/12C$ 322
Thu 25/125:14 p.m.DTW - ONT
1 stop9h 45mFrontier
Thu 1/16:45 a.m.ONT - DTW
1 stop6h 34mFrontier
Deal found 15/12C$ 420
Wed 24/126:00 p.m.DTW - ONT
1 stop7h 33mDelta
Thu 1/11:15 p.m.ONT - DTW
1 stop8h 12mDelta
Deal found 16/12C$ 467
Fri 19/127:50 a.m.DTW - ONT
1 stop12h 19mFrontier
Tue 23/126:17 p.m.ONT - DTW
1 stop9h 37mFrontier
Deal found 16/12C$ 473
Thu 25/125:14 p.m.DTW - ONT
1 stop9h 45mFrontier
Wed 31/126:00 p.m.ONT - DTW
1 stop9h 54mFrontier
Deal found 15/12C$ 489
Thu 25/127:50 a.m.DTW - ONT
1 stop12h 32mFrontier
Mon 5/16:00 p.m.ONT - DTW
1 stop9h 54mFrontier
Deal found 16/12C$ 502
Sat 20/1210:01 p.m.DTW - ONT
1 stop28h 58mFrontier
Wed 24/126:00 a.m.ONT - DTW
1 stop21h 54mFrontier
Deal found 16/12C$ 569
Mon 22/1212:29 p.m.DTW - ONT
1 stop8h 01mFrontier
Thu 1/16:45 a.m.ONT - DTW
1 stop6h 34mFrontier
Deal found 16/12C$ 570
Fri 19/1212:29 p.m.DTW - ONT
1 stop8h 01mFrontier
Mon 22/126:00 p.m.ONT - DTW
1 stop9h 54mFrontier
Deal found 15/12C$ 572
Thu 25/1210:01 p.m.DTW - ONT
1 stop28h 58mFrontier
Sun 4/16:37 p.m.ONT - DTW
1 stop9h 17mFrontier
Deal found 16/12C$ 598
Wed 24/124:16 p.m.DTW - ONT
1 stop7h 51mUnited Airlines
Tue 6/11:24 p.m.ONT - DTW
1 stop6h 06mUnited Airlines
Deal found 16/12C$ 601

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 18 December 2025.

Round-trip from

C$ 277

One-way from

C$ 231

Popular in

June

Cheapest in

September

Average price

C$ 559
13/1-20/1
  • 13/1-20/1
  • 3 total stops
  • 42h 17m total
  • Detroit to Ontario
Search Deals
Frontier
  • Frontier
  • 25/12
  • 1 total stop
  • 9h 45m total
  • Detroit to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 18 December 2025.
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 17/1

4:16 p.m.-9:05 p.m.

1 stop7h 49m

Ontario

Wed 21/1

7:30 a.m.-6:30 a.m.

1 stop20h 00m

C$ 444

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 24/1

5:15 p.m.-10:59 a.m.

1 stop20h 44m

Ontario

Mon 26/1

4:03 p.m.-4:19 p.m.

1 stop21h 16m

C$ 486

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 17/1

5:15 p.m.-10:59 a.m.

1 stop20h 44m

Ontario

Tue 20/1

4:03 p.m.-4:19 p.m.

1 stop21h 16m

C$ 508

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 13/1

5:15 p.m.-1:06 p.m.

2 stops22h 51m

Ontario

Tue 20/1

7:56 p.m.-4:19 p.m.

2 stops17h 23m

C$ 514

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 20/3

10:30 a.m.-3:45 p.m.

1 stop8h 15m

Ontario

Sun 22/3

11:55 p.m.-9:50 a.m.

1 stop6h 55m

C$ 577

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 17/1

9:00 a.m.-5:51 p.m.

2 stops11h 51m

Ontario

Wed 21/1

5:05 a.m.-3:08 p.m.

1 stop7h 03m

C$ 608

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 15/1

5:15 p.m.-11:56 p.m.

1 stop9h 41m

Ontario

Sat 24/1

5:59 p.m.-4:19 p.m.

2 stops19h 20m

C$ 609

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 7/2

9:00 a.m.-12:47 p.m.

1 stop6h 47m

Ontario

Sun 15/2

1:50 p.m.-12:32 a.m.

1 stop7h 42m

C$ 610

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 14/1

9:00 a.m.-12:47 p.m.

1 stop6h 47m

Ontario

Wed 21/1

1:24 p.m.-10:30 p.m.

1 stop6h 06m

C$ 610

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 6/1

4:45 p.m.-8:58 p.m.

1 stop7h 13m

Ontario

Sat 10/1

5:05 a.m.-3:08 p.m.

1 stop7h 03m

C$ 610

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

Showing 1-10 of 22 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$ 142). Flying from Detroit to Ontario in June is currently the most expensive (average of C$ 219). 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 DTT to ONT?

Find hourly flight availability from Detroit 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 18 December 2025.

One of the essential ways to save on airfare from Detroit to Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 68% on airfare.

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 75% 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$ 409.

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, Alaska Airlines, and Southwest can get you from Detroit to Ontario in just under 7h 49m. Your travel time can differ by up to 12h 55m. 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$ 499.

  • 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$ 142). Flying from Detroit to Ontario in June is currently the most expensive (average of C$ 219). 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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 499AverageC$ 618FlexibilityNo cancel feeOn-time63%
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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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