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$95+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTW
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Detroit Metropolitan Wayne County are usually found in October or May, booked 54 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 September 15, 2025.

Round-trip from

$148
(CheapOair)

One-way from

$95
(Trip.com)

Popular in

November

Cheapest in

October

Average price

$452
From Ontario to Detroit Metropolitan Wayne County
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One-way flight from Ontario to Detroit Metropolitan Wayne County
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Highest demand for flights based on searches. 12% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This CheapOair deal was found by Cheapflights users on 9/13. 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 10/38:59 pmONT - DTW
1 stop23h 59mFrontier
Mon 10/66:10 amDTW - ONT
1 stop19h 03mFrontier
Deal found 9/13$148
This Booking.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/28:59 pmONT - DTW
1 stop24h 47mFrontier
Sun 10/56:10 amDTW - ONT
1 stop28h 43mFrontier
Deal found 9/13$149
This Priceline deal was found by Cheapflights users on 9/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:15 pmONT - DTW
1 stop11h 32mFrontier
Thu 10/211:54 amDTW - ONT
1 stop11h 00mFrontier
Deal found 9/12$152
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/307:39 amONT - DTW
1 stop7h 54mFrontier
Sun 11/29:05 pmDTW - ONT
1 stop17h 05mFrontier
Deal found 9/14$154
This Frontier deal was found by Cheapflights users on 9/13. 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.
Sat 9/278:59 pmONT - DTW
1 stop11h 05mFrontier
Thu 10/211:54 amDTW - ONT
1 stop11h 00mFrontier
Deal found 9/13$158
This Frontier deal was found by Cheapflights users on 9/13. 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.
Sat 10/118:34 amONT - DTW
1 stop7h 59mFrontier
Thu 10/236:00 amDTW - ONT
1 stop6h 35mFrontier
Deal found 9/13$162
This CheapOair deal was found by Cheapflights users on 9/13. 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.
Tue 9/238:59 pmONT - DTW
1 stop24h 47mFrontier
Tue 9/308:00 amDTW - ONT
1 stop14h 54mFrontier
Deal found 9/13$172
This CheapOair deal was found by Cheapflights users on 9/14. 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 10/96:53 amONT - DTW
1 stop15h 06mFrontier
Sat 10/117:55 amDTW - ONT
1 stop18h 55mFrontier
Deal found 9/14$186
This CheapOair deal was found by Cheapflights users on 9/14. 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 10/1011:53 amONT - DTW
1 stop10h 06mFrontier
Sun 10/126:00 amDTW - ONT
1 stop6h 35mFrontier
Deal found 9/14$188
This Frontier deal was found by Cheapflights users on 9/13. 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.
Fri 10/316:53 amONT - DTW
1 stop6h 26mFrontier
Mon 11/105:14 pmDTW - ONT
1 stop9h 36mFrontier
Deal found 9/13$189
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Tue 10/147:04 amONT - DTW
1 stop14h 55mFrontier
Fri 10/176:00 amDTW - ONT
1 stop6h 35mFrontier
Deal found 9/15$191
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:53 amONT - DTW
1 stop15h 06mFrontier
Fri 11/75:14 pmDTW - ONT
1 stop20h 56mFrontier
Deal found 9/13$192

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 September 15, 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

Mon 10/27

6:53 am-12:59 am

1 stop15h 06m

Detroit Metropolitan Wayne County

Mon 11/3

5:14 pm-11:50 pm

1 stop9h 36m

$148

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Fri 10/24

11:53 am-12:59 am

1 stop10h 06m

Detroit Metropolitan Wayne County

Sun 10/26

6:00 am-9:35 am

1 stop6h 35m

$148

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 10/25

7:04 am-12:59 am

1 stop14h 55m

Detroit Metropolitan Wayne County

Sun 10/26

6:00 am-9:35 am

1 stop6h 35m

$149

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 11/5

5:55 am-5:50 pm

2 stops8h 55m

Detroit Metropolitan Wayne County

Mon 11/10

2:45 pm-8:35 pm

2 stops8h 50m

$317

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 10/9

1:15 pm-11:59 pm

1 stop7h 44m

Detroit Metropolitan Wayne County

Sat 10/11

8:00 am-12:14 pm

1 stop7h 14m

$363

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 10/8

11:48 am-10:28 pm

1 stop7h 40m

Detroit Metropolitan Wayne County

Wed 10/15

8:25 am-5:10 pm

1 stop11h 45m

$363

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 10/8

10:00 pm-9:25 am

1 stop8h 25m

Detroit Metropolitan Wayne County

Sat 10/11

8:00 am-12:14 pm

1 stop7h 14m

$363

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 10/7

10:00 pm-9:25 am

1 stop8h 25m

Detroit Metropolitan Wayne County

Sat 10/11

8:00 am-12:14 pm

1 stop7h 14m

$363

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 10/8

10:56 pm-11:30 am

1 stop9h 34m

Detroit Metropolitan Wayne County

Wed 10/15

12:16 pm-9:29 pm

1 stop12h 13m

$367

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 12/13

1:20 pm-12:09 am

1 stop7h 49m

Detroit Metropolitan Wayne County

Tue 1/6

4:30 pm-10:52 pm

1 stop9h 22m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 21 results
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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 September 12, 2025.

The best time to book flights from Ontario to Detroit Metropolitan Wayne County Airport is 54 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, August is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $250). Flying from Ontario to Detroit Metropolitan Wayne County Airport 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 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 September 15, 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 46% 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 September 15, 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
4,242 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

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
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

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
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

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
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Food

7.0

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 7h 44m. Airlines will cover a distance of 1929 mi. This flight may include one or multiple stops.

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

    According to our current data, Frontier ($127), Spirit Airlines ($147), and Delta ($292) offers the cheapest pricing from Ontario to Detroit Metropolitan Wayne County Airport. Frontier is currently priced 73% 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, August is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $250). Flying from Ontario to Detroit Metropolitan Wayne County Airport 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 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
Troy
Warren
Southfield
Novi
Clarkston
Allen Park
Utica
Plymouth
Monroe
Wixom
Brighton
Livonia
Roseville
Fremont
Port Huron
Auburn Hills
Madison Heights
Southgate

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$264FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$147Average$160FlexibilityNo cancel feeOn-time65%
DeltaCheapest$292Average$530FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$335Average$494FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$394Average$541FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$408Average$624FlexibilityNo cancel feeOn-time69%

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