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Cheap flights from Detroit to Ontario from C$ 186

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
25 Feb — 4 Mar1
1 adult

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 20 February 2025.

Round-trip from

C$ 249

One-way from

C$ 186

Popular in

April

Cheapest in

September

Average price

C$ 399
Frontier
  • Frontier
  • 17/3-22/3
  • 2 total stops
  • 19h 52m total
  • Detroit to Ontario
Search Deals
Hawaiian Airlines
  • Hawaiian Airlines
  • 13/3
  • 1 total stop
  • 9h 35m total
  • Detroit to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Detroit to Ontario

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 20 February 2025.

Mon 17/310:45 a.m.DTW - ONT
1 stop9h 58mFrontier
Sat 22/312:59 a.m.ONT - DTW
1 stop9h 54mFrontier
Deal found 20/2C$ 249
Fri 14/34:49 p.m.DTW - ONT
1 stop31h 11mAlaska Airlines
Mon 17/36:00 a.m.ONT - DTW
1 stop30h 53mAlaska Airlines
Deal found 20/2C$ 372
Wed 16/48:30 a.m.DTW - ONT
1 stop17h 12mDelta
Thu 24/45:45 a.m.ONT - DTW
1 stop12h 05mDelta
Deal found 20/2C$ 374
Tue 15/44:05 p.m.DTW - ONT
2 stops9h 25mSouthwest
Tue 22/47:55 a.m.ONT - DTW
1 stop8h 00mSouthwest
Deal found 20/2C$ 509
Mon 17/34:35 p.m.DTW - ONT
1 stop7h 22mUnited Airlines
Tue 18/36:45 p.m.ONT - DTW
2 stops12h 23mUnited Airlines
Deal found 19/2C$ 611

Find flights from Detroit to Ontario within your budget

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 20 February 2025.

Fly from

Detroit

Fly to

Ontario

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 17/3

10:45 a.m.-5:43 p.m.

1 stop9h 58m

Ontario

Sat 22/3

12:59 a.m.-1:53 p.m.

1 stop9h 54m

C$ 249

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 14/3

4:49 p.m.-9:00 p.m.

1 stop31h 11m

Ontario

Mon 17/3

6:00 a.m.-3:53 p.m.

1 stop30h 53m

C$ 372

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 16/4

8:30 a.m.-10:42 p.m.

1 stop17h 12m

Ontario

Tue 22/4

5:45 a.m.-6:09 a.m.

1 stop21h 24m

C$ 374

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 15/4

4:05 p.m.-10:30 p.m.

2 stops9h 25m

Ontario

Tue 22/4

7:55 a.m.-6:55 p.m.

1 stop8h 00m

C$ 509

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 17/3

4:35 p.m.-8:57 p.m.

1 stop7h 22m

Ontario

Tue 18/3

6:45 p.m.-10:08 a.m.

2 stops12h 23m

C$ 611

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 13/3

4:49 p.m.-11:24 p.m.

1 stop9h 35m

C$ 186

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 3/3

11:45 a.m.-6:58 p.m.

1 stop10h 13m

C$ 213

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 9/4

8:25 a.m.-12:26 p.m.

1 stop7h 01m

C$ 251

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 25/3

5:10 p.m.-11:59 p.m.

2 stops9h 49m

C$ 266

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 26/3

4:35 p.m.-8:57 p.m.

1 stop7h 22m

C$ 315

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 12 results
1
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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.

Travel insights for flights from Detroit to Ontario

Get recent, data-driven insights about flights from Detroit to Ontario including ideal travel times, pricing trends, and more.

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

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 May is currently the most expensive (average of C$ 574). 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 20 February 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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 64% on airfare.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 20 February 2025.
Read through reviews of airlines operating flights from Detroit to Ontario, such as Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews
Check prices

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Comfort

8.1

Entertainment

7.6

Food

7.1

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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?

    Cheapflights users have booked flights from Detroit to Ontario round-trip from C$ 249. Other airlines that can offer you cheap pricing are Alaska Airlines, from C$ 372, and Delta, from C$ 374. Frontier is currently priced 54% 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 Hawaiian Airlines (C$ 186), Frontier (C$ 213), and Delta (C$ 251).

  • 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, 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 May is currently the most expensive (average of C$ 574). 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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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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