Q: How much does it cost to fly round-trip from Detroit to Ontario?

Airfare is below average for this route at the moment. Detroit to Ontario flights typically cost between C$ 410 and C$ 697 in August. The cheapest round-trip price found within the last 3 days was C$ 343 on Frontier (16 Aug-22 Aug).

Question 1

How much does it cost to fly round-trip from Detroit to Ontario?

Accepted Answer

Airfare is below average for this route at the moment.Detroit to Ontario flights typically cost between C$ 410 and C$ 697 in August.
The cheapest round-trip price found within the last 3 days was C$ 343 on Frontier (16 Aug-22 Aug).

Question 2

What’s the top layover airport for flights from Detroit to Ontario?

Accepted Answer

Denver (DEN) – chosen by Cheapflights users on 77% of one-stop itineraries from Detroit to Ontario on Cheapflights.

Question 3

Which airport typically offers the quickest layover for flights from Detroit to Ontario?

Accepted Answer

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 18m.

Question 4

What’s the cheapest layover airport for flights from Detroit to Ontario?

Accepted Answer

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of C$ 473.

Question 5

What’s the fastest layover option from Detroit to Ontario?

Accepted Answer

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 51m.

Question 6

What are the cheapest airlines flying from Detroit to Ontario round-trip?

Accepted Answer

Cheapflights users have booked flights from Detroit to Ontario round-trip from C$ 343. Other airlines that can offer you cheap pricing are Alaska Airlines, from C$ 465, and Delta, from C$ 466. Frontier is currently priced 34% below the average price you’ll pay for this route.

Question 7

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

Accepted Answer

The cheapest airlines for a one-way flight from Detroit to Ontario are Frontier (C$ 206), Alaska Airlines (C$ 232), and Delta (C$ 234).

Question 8

What is the cheapest month to book a flight from Detroit to Ontario?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Detroit to Ontario (average of C$ 290). Flying from Detroit to Ontario in December is currently the most expensive (average of C$ 461). 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.

Question 9

What is the cheapest day to fly from Detroit to Ontario?

Accepted Answer

Travelers seeking maximum savings on their Detroit to Ontario flight should consider departing on Thursday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Question 10

E

Accepted Answer

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Question 11

E

Accepted Answer

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

Question 12

What is the cheapest day to fly round-trip from Detroit to Ontario?

Accepted Answer

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 164% on your flight compared to booking on days when demand is much higher.

Question 13

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

Accepted Answer

To save on the cost of your flight from Detroit to Ontario, book at least 58 days before your planned departure. Booking around this time can save you about 109% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 352 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 588.

Question 14

What is the cheapest month to fly from Detroit to Ontario?

Accepted Answer

January can be a great time to fly to Ontario from Detroit with a flight ticket averaging about C$ 389. Cheapflights users have found deals in the month of January for as cheap as C$ 191. The most expensive prices can be found in the month of December.

Question 15

What is the cheapest time of day to fly from DTT to ONT?

Accepted Answer

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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 64% on airfare.

Question 16

Can I find deals for flights from Detroit to Ontario that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Detroit to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 17

How can I find direct flights from Detroit to Ontario?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Ontario.

Question 18

Can I find deals for business class flights from Detroit to Ontario?

Accepted Answer

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.

Question 19

How does Cheapflights help users find flights from Detroit to Ontario?

Accepted Answer

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.

Question 20

Why should you use Cheapflights to find cheap flight tickets from Detroit to Ontario?

Accepted Answer

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!

Question 21

Can Cheapflights find flights from Detroit to Ontario with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Detroit to Ontario flexibly with Cheapflights today.

Question 22

Can Cheapflights notify me if prices for flights from Detroit to Ontario become cheaper?

Accepted Answer

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.

Round-trip from	C$ 343
One-way from	C$ 206
Popular in	December
Cheapest in	September
Average price	C$ 587

Cheap flights from Detroit to Ontario from C$ 206

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Detroit to OntarioExplore 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 31 July 2025.

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 31 July 2025.

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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.

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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?

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 31 July 2025.

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.

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.

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.

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.

Reviews of airlines servicing Ontario

Check out reviews from past customers who have flown with Alaska Airlines,Southwest, andDelta from Detroit to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines flying from Detroit to Ontario round-trip?

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

Can I find deals for flights from Detroit to Ontario that include hotel bookings?

How can I find direct flights from Detroit to Ontario?

Can I find deals for business class flights from Detroit to Ontario?

What is the cheapest month to book a flight from Detroit to Ontario?

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Can Cheapflights find flights from Detroit to Ontario with no change fees?

Can Cheapflights notify me if prices for flights from Detroit to Ontario become cheaper?

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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 31 July 2025.