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$65+ Cheap flights from Detroit to Ontario (DTT - ONT)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ONT
Feb 24 — Mar 31
Mon 2/24
Mon 3/3
1 adult, Economy
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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 February 19, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$106
(Trip.com)

One-way from

$65
(Frontier)

Popular in

April

Cheapest in

September

Average price

$281
Provider with most accurate pricing for Detroit (DTT)-Ontario flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Ontario flights.
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From Detroit (DTT) to Ontario
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One-way flight from Detroit (DTT) to Ontario
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Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 potential savings vs. average RT price).
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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 February 19, 2025.

This Trip.com deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/43:35 pmDTW - ONT
1 stop11h 24mFrontier
Mon 3/1012:59 amONT - DTW
1 stop9h 54mFrontier
Deal found 2/17$106
This Delta deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/222:45 pmDTW - ONT
1 stop7h 43mDelta
Tue 4/295:30 pmONT - DTW
1 stop9h 39mDelta
Deal found 2/18$353
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:55 pmDTW - ONT
2 stops9h 03mAmerican Airlines
Mon 5/511:59 pmONT - DTW
1 stop7h 57mAmerican Airlines
Deal found 2/19$358
This Alaska Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/174:49 pmDTW - ONT
1 stop9h 35mAlaska Airlines
Tue 3/186:00 amONT - DTW
1 stop31h 04mAlaska Airlines
Deal found 2/17$367
This Expedia deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/289:54 pmDTW - ONT
1 stop12h 29mMultiple Airlines
Sat 5/314:45 pmONT - DTW
1 stop9h 29mMultiple Airlines
Deal found 2/17$369
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/174:35 pmDTW - ONT
1 stop7h 22mUnited Airlines
Tue 3/186:45 pmONT - DTW
2 stops12h 23mUnited Airlines
Deal found 2/19$430
This Southwest deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/95:40 amDTW - ONT
2 stops8h 20mSouthwest
Mon 5/125:20 amONT - DTW
2 stops8h 50mSouthwest
Deal found 2/18$458

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 2,558,603 searches. Data last updated February 19, 2025.

Fly from

Detroit

Fly to

Ontario

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 3/4

3:35 pm-11:59 pm

1 stop11h 24m

Ontario

Mon 3/10

12:59 am-1:53 pm

1 stop9h 54m

$106

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 4/22

2:45 pm-7:28 pm

1 stop7h 43m

Ontario

Tue 4/29

5:30 pm-6:09 am

1 stop9h 39m

$353

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 4/30

3:55 pm-9:58 pm

2 stops9h 03m

Ontario

Mon 5/5

11:59 pm-10:56 am

1 stop7h 57m

$358

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 3/17

4:49 pm-11:24 pm

1 stop9h 35m

Ontario

Tue 3/18

6:00 am-4:04 pm

1 stop31h 04m

$367

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 3/12

11:14 am-9:27 pm

2 stops13h 13m

Ontario

Sun 3/16

5:24 pm-9:45 am

1 stop13h 21m

$373

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 3/17

4:35 pm-8:57 pm

1 stop7h 22m

Ontario

Tue 3/18

6:45 pm-10:08 am

2 stops12h 23m

$430

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 5/9

5:40 am-11:00 am

2 stops8h 20m

Ontario

Mon 5/12

5:20 am-5:10 pm

2 stops8h 50m

$458

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 3/5

1:00 pm-5:58 pm

1 stop7h 58m

$65

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 4/2

5:49 pm-10:27 pm

1 stop7h 38m

$176

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 4/22

5:40 pm-11:41 pm

1 stop9h 01m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 15 results
1
2

Compare providers for flights from Detroit to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, August is the cheapest month in which you can book a flight from Detroit to Ontario (average of $246). Flying from Detroit to Ontario in March is currently the most expensive (average of $315). 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 February 19, 2025.

A simple way to save on the total cost of your ticket is to fly from Detroit to Ontario in the evening. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Detroit to Ontario. Price data was last updated on December 16, 2024.

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

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 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 February 19, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Detroit to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

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
4,413 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

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
9,691 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

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
8,236 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

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
4,413 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

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
8,771 reviews
Southwest
8.1
Very good
4,413 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

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 $106. Other airlines that can offer you cheap pricing are Delta, from $353, and American Airlines, from $358. Users have found that Frontier is 72% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $65. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Detroit to Ontario for a low price.

  • 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 $246). Flying from Detroit to Ontario in March is currently the most expensive (average of $315). 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 6 airlines flying from Detroit to Ontario

Discover the top 6 airlines 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 2,558,603 searches. Data last updated February 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$137Average$221FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$240FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$336Average$507FlexibilityNo cancel feeOn-time71%
DeltaCheapest$340Average$562FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$400Average$501FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$412Average$511FlexibilityNo cancel feeOn-time69%
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