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$87+ Cheap flights from Ontario to Detroit (ONT - DTT)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTT
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
1 adult, Economy
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Cheap flight deals from Ontario to Detroit

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Detroit (DTT). 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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$170
(CheapOair)

One-way from

$87
(Mytrip)

Popular in

January

Cheapest in

July

Average price

$352
Provider with most accurate pricing for Ontario-Detroit (DTT) flight deals.
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Provider most trusted by Cheapflights users for Ontario-Detroit (DTT) flights.
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From Ontario to Detroit (DTT)
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One-way flight from Ontario to Detroit (DTT)
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Highest demand for flights based on searches. 18% potential increase in price ($97 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ontario to Detroit

Cheapest flights from Ontario to Detroit
Explore the most affordable flight options available from Ontario to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

This Frontier deal was found by Cheapflights users on 3/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3112:59 amONT - DTW
1 stop9h 53mFrontier
Tue 4/82:43 pmDTW - ONT
1 stop12h 16mFrontier
Deal found 3/2$170
This Expedia deal was found by Cheapflights users on 3/2. 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 4/1612:59 amONT - DTW
1 stop9h 53mMultiple Airlines
Wed 4/237:00 amDTW - ONT
1 stop11h 32mMultiple Airlines
Deal found 3/2$323
This Alaska Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 4/16:00 amONT - DTW
1 stop31h 04mAlaska Airlines
Tue 4/85:10 pmDTW - ONT
1 stop20h 29mAlaska Airlines
Deal found 3/2$353
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 4/19:47 amONT - DTW
2 stops8h 47mAmerican Airlines
Tue 4/85:01 amDTW - ONT
1 stop9h 45mAmerican Airlines
Deal found 3/2$357
This United Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 4/16:00 amONT - DTW
1 stop7h 57mUnited Airlines
Tue 4/87:17 amDTW - ONT
2 stops11h 00mUnited Airlines
Deal found 3/2$358
This Delta deal was found by Cheapflights users on 3/2. 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.
Sat 4/121:30 pmONT - DTW
1 stop6h 49mDelta
Mon 4/216:05 pmDTW - ONT
1 stop7h 31mDelta
Deal found 3/2$370
This Southwest deal was found by Cheapflights users on 3/1. 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.
Thu 4/105:45 amONT - DTW
2 stops8h 25mSouthwest
Mon 4/145:55 pmDTW - ONT
1 stop8h 05mSouthwest
Deal found 3/1$392

Find flights from Ontario to Detroit within your budget

Customize your flight search to find flights from Ontario to Detroit 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 March 3, 2025.

Fly from

Ontario

Fly to

Detroit

Route

Depart

Return

Price

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 3/31

12:59 am-1:52 pm

1 stop9h 53m

Detroit Metropolitan Wayne County

Tue 4/8

2:43 pm-11:59 pm

1 stop12h 16m

$170

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 4/16

12:59 am-1:52 pm

1 stop9h 53m

Detroit Metropolitan Wayne County

Wed 4/23

7:00 am-3:32 pm

1 stop11h 32m

$323

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 4/1

2:54 pm-12:56 am

1 stop7h 02m

Detroit Metropolitan Wayne County

Tue 4/8

5:37 pm-10:10 pm

1 stop7h 33m

$352

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 4/1

6:00 am-4:04 pm

1 stop31h 04m

Detroit Metropolitan Wayne County

Tue 4/8

5:10 pm-10:39 am

1 stop20h 29m

$353

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 4/1

6:00 am-4:57 pm

1 stop7h 57m

Detroit Metropolitan Wayne County

Tue 4/8

7:17 am-3:17 pm

2 stops11h 00m

$358

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 4/12

1:30 pm-11:19 pm

1 stop6h 49m

Detroit Metropolitan Wayne County

Mon 4/21

6:05 pm-10:36 pm

1 stop7h 31m

$370

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 4/10

5:45 am-5:10 pm

2 stops8h 25m

Detroit Metropolitan Wayne County

Mon 4/14

5:55 pm-11:00 pm

1 stop8h 05m

$392

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 3/31

12:59 am-1:52 pm

1 stop9h 53m

$87

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 3/31

4:09 pm-9:19 am

1 stop14h 10m

$90

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 4/1

1:30 pm-11:17 pm

1 stop6h 47m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 14 results
1
2

Compare providers for flights from Ontario to Detroit

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 Ontario to Detroit in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Ontario-Detroit flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Detroit flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Detroit flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Detroit 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 Ontario-Detroit 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 Ontario to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from Ontario 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 Ontario to Detroit

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

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

Currently, April is the cheapest month in which you can book a flight from Ontario to Detroit (average of $257). Flying from Ontario to Detroit in March is currently the most expensive (average of $305). 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 ONT to DTT?

Find hourly flight availability from Ontario to Detroit. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

It’s optimal to fly from Ontario to Detroit in the afternoon. By choosing this option you can save up to 50% on the cost of your flight, compared to a flight at noon.

Rainfall in Detroit by month

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

In terms of precipitation, rainfall in Detroit ranges from 1.8 - 3.1 inches per month. August is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Detroit when rainfall is around 1.8 in.

Temperature in Detroit by month

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

If weather is an important factor for your trip to Detroit, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Detroit

Get insights into the airlines that provide service to Detroit. 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 Detroit. Reviews last updated March 3, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines and Delta from Ontario to Detroit 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.
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,333 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,710 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,068 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines
7.4
Good
8,679 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,333 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Detroit. 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 Ontario to Detroit round-trip?

    Flying on Frontier is currently your cheapest option to Detroit, with prices starting at $170. Additional round-trip tickets that might be worth considering are offered by American Airlines and Alaska Airlines, with the lowest prices starting at $352 and $353, respectively. These flights start at 60% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $87. Delta flights start at $176 while deals on American Airlines start at $177 one-way.

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

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

  • How can I find direct flights from Ontario to Detroit?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Detroit 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 Ontario to Detroit?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Detroit (average of $257). Flying from Ontario to Detroit in March is currently the most expensive (average of $305). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Roseville
Port Huron

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ontario to Detroit

Discover the top 6 airlines that operate flights from Ontario to Detroit. 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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$246FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$152Average$265FlexibilityNo cancel feeOn-time65%
DeltaCheapest$298Average$537FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$336Average$476FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$341Average$536FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$394Average$609FlexibilityNo cancel feeOn-time63%
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