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Cheap flights from Detroit to Ontario from C$ 214

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
13 Aug — 20 Aug1
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 14 July 2026.

Sat 22/812:20 p.m.
DTW
-
ONT
1 stop14h 30m
Frontier
Wed 26/86:00 a.m.
ONT
-
DTW
1 stop14h 59m
Frontier
Deal found 11/7C$ 330
Wed 5/87:40 a.m.
DTW
-
ONT
1 stop19h 10m
Frontier
Mon 10/86:00 a.m.
ONT
-
DTW
1 stop27h 34m
Frontier
Deal found 11/7C$ 376
Tue 4/89:06 a.m.
DTW
-
ONT
1 stop25h 26m
Frontier
Tue 11/84:09 p.m.
ONT
-
DTW
1 stop11h 51m
Frontier
Deal found 13/7C$ 391
Tue 25/87:55 a.m.
DTW
-
ONT
1 stop18h 55m
Frontier
Sat 29/86:00 a.m.
ONT
-
DTW
1 stop14h 59m
Frontier
Deal found 10/7C$ 403
Fri 7/89:06 a.m.
DTW
-
ONT
1 stop25h 26m
Frontier
Mon 10/86:00 a.m.
ONT
-
DTW
1 stop27h 34m
Frontier
Deal found 11/7C$ 408
Tue 18/87:55 a.m.
DTW
-
ONT
1 stop18h 55m
Frontier
Fri 21/88:17 a.m.
ONT
-
DTW
1 stop6h 58m
Frontier
Deal found 12/7C$ 440
Mon 21/98:20 p.m.
DTW
-
ONT
1 stop6h 27m
Delta
Mon 28/91:04 p.m.
ONT
-
DTW
1 stop7h 55m
Delta
Deal found 9/7C$ 468
Sun 16/88:30 a.m.
DTW
-
ONT
1 stop10h 24m
Frontier
Tue 18/83:40 p.m.
ONT
-
DTW
1 stop11h 40m
Frontier
Deal found 13/7C$ 473

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 14 July 2026.

Round-trip from

C$ 330

One-way from

C$ 214

Popular in

January

Cheapest in

July

Average price

C$ 449
Frontier
  • Frontier
  • 22/8-26/8
  • 2 total stops
  • 29h 29m total
  • Detroit to Ontario
Search Deals
Frontier
  • Frontier
  • 11/8
  • 1 total stop
  • 25h 26m total
  • Detroit to Ontario
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (C$ 359 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease (C$ 115 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 14 July 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

Fri 25/9

8:20 p.m.-11:47 p.m.

1 stop6h 27m

Ontario

Mon 28/9

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

1 stop9h 28m

C$ 468

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 9/12

8:00 a.m.-12:30 p.m.

1 stop7h 30m

Ontario

Tue 15/12

7:00 a.m.-6:48 p.m.

1 stop8h 48m

C$ 468

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 10/9

12:15 p.m.-4:35 p.m.

1 stop7h 20m

Ontario

Wed 16/9

1:04 p.m.-11:59 p.m.

1 stop7h 55m

C$ 570

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 25/8

7:00 a.m.-12:40 p.m.

2 stops8h 40m

Ontario

Tue 1/9

6:40 a.m.-6:25 p.m.

2 stops8h 45m

C$ 584

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 19/8

6:25 a.m.-12:40 p.m.

2 stops9h 15m

Ontario

Wed 26/8

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

2 stops8h 50m

C$ 584

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 25/8

10:55 a.m.-8:53 p.m.

2 stops12h 58m

Ontario

Sat 29/8

1:18 p.m.-10:45 p.m.

1 stop6h 27m

C$ 617

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 18/8

10:55 a.m.-6:11 p.m.

2 stops10h 16m

Ontario

Sat 22/8

7:00 a.m.-4:57 p.m.

1 stop6h 57m

C$ 631

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 25/9

7:01 a.m.-2:16 p.m.

1 stop10h 15m

Ontario

Mon 28/9

7:59 p.m.-9:47 a.m.

2 stops10h 48m

C$ 688

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 22/8

12:23 p.m.-8:01 p.m.

2 stops10h 38m

Ontario

Wed 26/8

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

2 stops9h 00m

C$ 695
Quickest round-trip

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 29/7

6:17 a.m.-10:38 a.m.

1 stop7h 21m

Ontario

Mon 10/8

1:06 p.m.-11:59 p.m.

1 stop7h 53m

C$ 705

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Showing 1-10 of 22 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$ 195). Flying from Detroit to Ontario in November is currently the most expensive (average of C$ 451). 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’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.

Phoenix (PHX) – chosen by Cheapflights users on 50% 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.

Phoenix (PHX) is the most affordable 1-stop option, with an average round-trip price of C$ 605.

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 Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 6h 53m.

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 Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 16m.

How far ahead should I book a flight from Detroit to Ontario?

To ensure you get the cheapest price possible for a flight from Detroit to Ontario, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 and Southwest can get you from Detroit to Ontario in just under 6h 27m. Your travel time can differ by up to 2h 13m. 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$ 513. Southwest is currently priced 25% 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$ 195). Flying from Detroit to Ontario in November is currently the most expensive (average of C$ 451). 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 14 July 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 513AverageC$ 634FlexibilityNo 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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