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Cheap flights from Detroit to Ontario from C$ 198

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 27/11. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 30 October 2025.

Round-trip from

C$ 256

One-way from

C$ 198

Popular in

June

Cheapest in

September

Average price

C$ 552
Frontier
  • Frontier
  • 10/11-19/11
  • 2 total stops
  • 28h 41m total
  • Detroit to Ontario
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Frontier
  • Frontier
  • 27/11
  • 1 total stop
  • 8h 26m total
  • Detroit to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 108 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 30 October 2025.

Mon 10/115:14 p.m.DTW - ONT
1 stop9h 36mFrontier
Wed 19/118:00 a.m.ONT - DTW
1 stop19h 05mFrontier
Deal found 30/10C$ 256
Thu 13/115:14 p.m.DTW - ONT
1 stop9h 36mFrontier
Wed 19/118:00 a.m.ONT - DTW
1 stop19h 05mFrontier
Deal found 29/10C$ 261
Thu 13/119:53 p.m.DTW - ONT
1 stop23h 56mMultiple Airlines
Wed 19/118:45 a.m.ONT - DTW
2 stops21h 45mMultiple Airlines
Deal found 30/10C$ 318
Sun 14/125:20 p.m.DTW - ONT
1 stop24h 05mFrontier
Sun 21/126:45 a.m.ONT - DTW
1 stop11h 21mFrontier
Deal found 29/10C$ 404
Mon 10/115:14 p.m.DTW - ONT
1 stop9h 36mFrontier
Sat 22/1112:58 a.m.ONT - DTW
1 stop7h 45mFrontier
Deal found 29/10C$ 409
Wed 24/1212:20 p.m.DTW - ONT
1 stop14h 39mFrontier
Sat 27/126:45 a.m.ONT - DTW
1 stop11h 21mFrontier
Deal found 28/10C$ 424
Thu 13/115:14 p.m.DTW - ONT
1 stop20h 56mFrontier
Sun 16/114:05 p.m.ONT - DTW
1 stop21h 14mFrontier
Deal found 30/10C$ 437
Fri 7/115:14 p.m.DTW - ONT
1 stop20h 56mFrontier
Sun 9/116:45 a.m.ONT - DTW
1 stop10h 00mFrontier
Deal found 28/10C$ 455
Fri 21/117:02 p.m.DTW - ONT
1 stop7h 55mFrontier
Wed 26/115:06 p.m.ONT - DTW
1 stop9h 59mFrontier
Deal found 28/10C$ 480
Sat 22/1112:28 p.m.DTW - ONT
1 stop8h 45mFrontier
Sat 3/15:16 p.m.ONT - DTW
1 stop10h 38mFrontier
Deal found 28/10C$ 493
Wed 24/128:34 a.m.DTW - ONT
1 stop11h 41mMultiple Airlines
Sat 27/125:16 p.m.ONT - DTW
2 stops15h 09mMultiple Airlines
Deal found 28/10C$ 501

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 30 October 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

Thu 13/11

5:14 p.m.-11:10 a.m.

1 stop20h 56m

Ontario

Wed 19/11

8:00 a.m.-6:05 a.m.

1 stop19h 05m

C$ 289

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 18/2

12:15 p.m.-10:38 p.m.

1 stop13h 23m

Ontario

Sat 28/2

4:00 p.m.-6:28 a.m.

1 stop11h 28m

C$ 535

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 18/2

12:15 p.m.-10:38 p.m.

1 stop13h 23m

Ontario

Wed 4/3

4:00 p.m.-6:28 a.m.

1 stop11h 28m

C$ 535

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 27/11

2:41 p.m.-7:42 p.m.

1 stop8h 01m

Ontario

Tue 2/12

1:29 p.m.-12:20 a.m.

1 stop7h 51m

C$ 538

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 20/1

5:15 p.m.-8:36 p.m.

1 stop30h 21m

Ontario

Fri 23/1

11:53 a.m.-4:19 p.m.

1 stop25h 26m

C$ 547

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 21/1

8:35 a.m.-10:29 p.m.

1 stop16h 54m

Ontario

Sat 24/1

3:30 p.m.-6:30 a.m.

1 stop12h 00m

C$ 549

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 27/11

2:41 p.m.-7:42 p.m.

1 stop8h 01m

Ontario

Mon 8/12

5:49 p.m.-6:39 a.m.

1 stop9h 50m

C$ 559

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 27/11

12:20 p.m.-7:42 p.m.

1 stop10h 22m

Ontario

Thu 4/12

12:12 p.m.-12:43 a.m.

1 stop9h 31m

C$ 559

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 19/2

4:40 p.m.-10:37 p.m.

1 stop8h 57m

Ontario

Tue 24/2

6:55 p.m.-3:22 p.m.

1 stop17h 27m

C$ 561

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 2/2

5:15 p.m.-3:08 p.m.

1 stop24h 53m

Ontario

Sat 7/2

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

1 stop21h 16m

C$ 561

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

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, 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 June is currently the most expensive (average of C$ 222). 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 30 October 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 77% 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$ 477.

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?

    Frontier, Delta, and Alaska Airlines can get you from Detroit to Ontario in just under 13h 23m. Your travel time can differ by up to 16h 58m. 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$ 506. Southwest is currently priced 1% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Detroit to Ontario one-way?

    The cheapest airlines for a one-way flight from Detroit to Ontario are Delta (C$ 274), United Airlines (C$ 324), and Alaska Airlines (C$ 331).

  • 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 June is currently the most expensive (average of C$ 222). 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

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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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 506AverageC$ 626FlexibilityNo cancel feeOn-time63%
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Fly with Cheapflights

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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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