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$65+ Cheap flights from Ontario to Detroit Metropolitan Wayne County Airport (ONT - DTW)

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTW
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find cheap flights from Ontario to Detroit with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Ontario to Detroit Metropolitan Wayne County are usually found in October or September, booked 47 days in advance, depart on a Friday or Tuesday and return on a Sunday

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 (DTW). 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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$130
(CheapOair)

One-way from

$65
(Super.com)

Popular in

March

Cheapest in

October

Average price

$630
Provider with most accurate pricing for Ontario-Detroit Metropolitan Wayne County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Detroit Metropolitan Wayne County flights.
Search Deals
From Ontario to Detroit Metropolitan Wayne County
Search Deals
One-way flight from Ontario to Detroit Metropolitan Wayne County
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 6, 2025.

This CheapOair deal was found by Cheapflights users on 11/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:04 pmONT - DTW
1 stop25h 15mFrontier
Mon 12/811:44 amDTW - ONT
1 stop7h 49mFrontier
Deal found 11/5$130
This Booking.com deal was found by Cheapflights users on 11/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:20 pmONT - DTW
1 stop21h 59mFrontier
Mon 12/811:44 amDTW - ONT
1 stop7h 49mFrontier
Deal found 11/6$132
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:58 amONT - DTW
1 stop20h 52mFrontier
Mon 12/811:44 amDTW - ONT
1 stop7h 49mFrontier
Deal found 11/3$134
This CheapOair deal was found by Cheapflights users on 11/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:58 amONT - DTW
1 stop7h 45mFrontier
Mon 11/245:45 amDTW - ONT
1 stop21h 12mFrontier
Deal found 11/4$137
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:30 amONT - DTW
1 stop20h 35mFrontier
Mon 12/110:29 pmDTW - ONT
1 stop25h 48mFrontier
Deal found 11/3$138
This CheapOair deal was found by Cheapflights users on 11/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:06 pmONT - DTW
1 stop9h 59mFrontier
Mon 11/2410:57 amDTW - ONT
1 stop8h 24mFrontier
Deal found 11/4$144
This Frontier deal was found by Cheapflights users on 11/5. 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.
Thu 11/203:31 pmONT - DTW
1 stop11h 34mFrontier
Wed 11/265:45 amDTW - ONT
1 stop8h 43mFrontier
Deal found 11/5$145
This CheapOair deal was found by Cheapflights users on 11/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:04 pmONT - DTW
1 stop25h 15mFrontier
Sun 12/145:20 pmDTW - ONT
1 stop24h 05mFrontier
Deal found 11/4$146
This Booking.com deal was found by Cheapflights users on 11/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:58 amONT - DTW
1 stop7h 45mFrontier
Fri 11/2810:29 pmDTW - ONT
1 stop14h 42mFrontier
Deal found 11/5$149
This Booking.com deal was found by Cheapflights users on 11/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:06 pmONT - DTW
1 stop9h 59mFrontier
Thu 11/2712:35 pmDTW - ONT
1 stop14h 22mFrontier
Deal found 11/5$156

Cheapflights Fare Finder

 
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 November 6, 2025.
Use the filters below to find and compare flights from Ontario to Detroit Metropolitan Wayne County Airport that are best for you.

Fly from

Ontario

Fly to

Detroit

Route

Depart

Return

Price

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 12/6

3:20 pm-4:19 pm

1 stop21h 59m

Detroit Metropolitan Wayne County

Mon 12/8

11:44 am-4:33 pm

1 stop7h 49m

$130

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 11/20

6:30 am-6:05 am

1 stop20h 35m

Detroit Metropolitan Wayne County

Fri 11/28

5:45 am-6:53 pm

1 stop16h 08m

$137

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Fri 11/21

12:58 am-11:43 am

1 stop7h 45m

Detroit Metropolitan Wayne County

Wed 11/26

10:57 am-4:21 pm

1 stop8h 24m

$144

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 11/24

12:58 am-12:50 am

1 stop20h 52m

Detroit Metropolitan Wayne County

Sun 11/30

10:29 pm-2:26 pm

1 stop18h 57m

$208

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sun 12/14

2:59 pm-10:59 am

1 stop17h 00m

Detroit Metropolitan Wayne County

Wed 12/17

9:40 am-9:17 pm

1 stop14h 37m

$234

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Fri 1/30

11:53 am-4:19 pm

1 stop25h 26m

Detroit Metropolitan Wayne County

Mon 2/2

5:15 pm-8:36 pm

1 stop30h 21m

$306

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 1/31

3:30 pm-6:30 am

1 stop12h 00m

Detroit Metropolitan Wayne County

Mon 2/2

7:45 pm-10:29 pm

1 stop29h 44m

$307

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 12/29

6:45 am-11:25 am

1 stop25h 40m

Detroit Metropolitan Wayne County

Sun 1/4

12:20 pm-11:59 pm

1 stop14h 39m

$322

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 12/29

6:00 pm-6:54 am

1 stop9h 54m

Detroit Metropolitan Wayne County

Mon 1/5

7:50 am-5:15 pm

1 stop12h 25m

$346

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 12/30

6:17 pm-6:54 am

1 stop9h 37m

Detroit Metropolitan Wayne County

Sat 1/3

7:50 am-11:21 pm

1 stop18h 31m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 19 results
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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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice 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 Ontario-Detroit Metropolitan Wayne County Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Detroit Metropolitan Wayne County Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Detroit Metropolitan Wayne County Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Detroit Metropolitan Wayne County Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Metropolitan Wayne County Airport 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Detroit Metropolitan Wayne County Airport

How far ahead should I book a flight from Ontario to Detroit Metropolitan Wayne County Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Detroit. Price data was last updated on October 31, 2025.

The best time to book flights from Ontario to Detroit Metropolitan Wayne County Airport is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ontario to Detroit Metropolitan Wayne County Airport?

Currently, February is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $99). Flying from Ontario to Detroit Metropolitan Wayne County Airport in June is currently the most expensive (average of $173). 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 DTW?

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 November 6, 2025.

When flying from Ontario to Detroit Metropolitan Wayne County Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 45% versus a flight in the morning.

How much does it cost to fly round-trip from Ontario to Detroit Metropolitan Wayne County Airport?

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 November 6, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Ontario to Detroit Metropolitan Wayne County Airport 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
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,115 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • How long is the flight from Ontario to Detroit Metropolitan Wayne County Airport?

    Departing from Ontario to Detroit Metropolitan Wayne County Airport will take you 21h 59m. Airlines will cover a distance of 1929 mi.

  • What are the cheapest airlines flying from Ontario to Detroit Metropolitan Wayne County Airport round-trip?

    According to our current data, Spirit Airlines ($147), Frontier ($155), and Delta ($292) offers the cheapest pricing from Ontario to Detroit Metropolitan Wayne County Airport. Spirit Airlines is currently priced 67% below the average price you’ll pay for this route.

  • 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 Metropolitan Wayne County Airport?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $99). Flying from Ontario to Detroit Metropolitan Wayne County Airport in June is currently the most expensive (average of $173). 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 Detroit Metropolitan Wayne County Airport?

Book flights to Detroit Metropolitan Wayne County Airport if you plan to visit one of these locations
Sterling Heights
Dearborn
Southfield
Warren
Troy
Novi
Clarkston
Allen Park
Utica
Romulus
Auburn Hills
Monroe
Wixom
Ypsilanti
Brighton
Livonia
Plymouth
Roseville
Fremont
Port Huron

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$147Average$177FlexibilityNo cancel feeOn-time65%
FrontierCheapest$155Average$272FlexibilityNo cancel feeOn-time62%
DeltaCheapest$292Average$477FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$310Average$502FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$394Average$550FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$408Average$624FlexibilityNo cancel feeOn-time69%

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