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$131+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTW
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Cheap 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 July 29, 2026.

This deal was found by Cheapflights users on 7/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1912:30 am
ONT
-
DTW
1 stop7h 45m
Frontier
Mon 11/235:49 pm
DTW
-
ONT
1 stop8h 46m
Frontier
Deal found 7/24$238
This Frontier deal was found by Cheapflights users on 7/25. 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 9/38:17 am
ONT
-
DTW
1 stop6h 58m
Frontier
Sat 9/127:08 am
DTW
-
ONT
1 stop6h 22m
Frontier
Deal found 7/25$264
This Frontier deal was found by Cheapflights users on 7/24. 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.
Wed 8/193:40 pm
ONT
-
DTW
1 stop11h 40m
Frontier
Sat 8/229:00 am
DTW
-
ONT
1 stop13h 01m
Frontier
Deal found 7/24$265
This Booking.com deal was found by Cheapflights users on 7/28. 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.
Mon 8/248:17 am
ONT
-
DTW
1 stop6h 58m
Frontier
Thu 8/2712:20 pm
DTW
-
ONT
1 stop14h 30m
Frontier
Deal found 7/28$272
This CheapOair deal was found by Cheapflights users on 7/28. 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 8/197:56 pm
ONT
-
DTW
1 stop12h 29m
Frontier
Thu 8/277:55 am
DTW
-
ONT
1 stop29h 09m
Frontier
Deal found 7/28$274
This CheapOair deal was found by Cheapflights users on 7/26. 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.
Mon 8/176:00 am
ONT
-
DTW
1 stop26h 25m
Frontier
Wed 8/267:55 am
DTW
-
ONT
1 stop18h 55m
Frontier
Deal found 7/26$275
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Thu 10/156:00 am
ONT
-
DTW
1 stop15h 24m
Frontier
Mon 10/193:38 pm
DTW
-
ONT
2 stops35h 17m
Frontier
Deal found 7/24$277
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Tue 8/186:00 am
ONT
-
DTW
1 stop14h 59m
Frontier
Tue 8/256:40 pm
DTW
-
ONT
2 stops27h 21m
Frontier
Deal found 7/28$279
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Thu 8/2710:49 am
ONT
-
DTW
1 stop10h 10m
Frontier
Mon 8/318:46 pm
DTW
-
ONT
2 stops30h 04m
Frontier
Deal found 7/26$280
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 8/266:00 am
ONT
-
DTW
2 stops28h 39m
Frontier
Wed 9/212:20 pm
DTW
-
ONT
1 stop14h 30m
Frontier
Deal found 7/27$281
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 8/266:00 am
ONT
-
DTW
2 stops28h 39m
Frontier
Sat 8/2912:20 pm
DTW
-
ONT
1 stop14h 30m
Frontier
Deal found 7/27$282
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Thu 8/206:00 am
ONT
-
DTW
1 stop14h 59m
Frontier
Mon 8/248:46 pm
DTW
-
ONT
2 stops30h 04m
Frontier
Deal found 7/26$283

Find 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 July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$238

One-way from

$131
(Super.com)

Popular in

June

Cheapest in

October

Average price

$436
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. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 29, 2026.
Use the filters below to find and compare flights from Ontario to Detroit Metropolitan Wayne County Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 8/29

1:06 pm-10:40 pm

1 stop6h 34m

Detroit Metropolitan Wayne County

Sat 9/26

8:25 am-12:14 pm

1 stop6h 49m

$403

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 9/2

7:05 am-5:19 pm

1 stop7h 14m

Detroit Metropolitan Wayne County

Tue 9/29

8:20 pm-11:47 pm

1 stop6h 27m

$403

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 9/3

1:06 pm-11:59 pm

1 stop7h 53m

Detroit Metropolitan Wayne County

Sun 9/6

6:00 am-10:42 am

1 stop7h 42m

$408

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 9/3

1:06 pm-11:59 pm

1 stop7h 53m

Detroit Metropolitan Wayne County

Wed 9/30

8:20 pm-11:47 pm

1 stop6h 27m

$461

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 12/24

10:59 pm-9:27 am

1 stop7h 28m

Detroit Metropolitan Wayne County

Thu 12/31

3:55 pm-10:14 pm

1 stop9h 19m

$461
Quickest round-trip

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 8/29

6:00 am-3:09 pm

1 stop6h 09m

Detroit Metropolitan Wayne County

Wed 9/30

8:20 pm-11:47 pm

1 stop6h 27m

$461

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 9/2

5:00 am-5:00 pm

2 stops9h 00m

Detroit Metropolitan Wayne County

Fri 9/4

12:35 pm-8:01 pm

2 stops10h 26m

$483

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 8/27

1:18 pm-10:38 pm

1 stop6h 20m

Detroit Metropolitan Wayne County

Tue 9/1

12:35 pm-8:01 pm

2 stops10h 26m

$508

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 8/26

5:00 am-5:00 pm

2 stops9h 00m

Detroit Metropolitan Wayne County

Tue 9/1

3:29 pm-8:53 pm

1 stop8h 24m

$508

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 8/25

9:01 am-11:54 pm

2 stops11h 53m

Detroit Metropolitan Wayne County

Sat 8/29

12:23 pm-8:53 pm

2 stops11h 30m

$513

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Detroit Metropolitan Wayne County Airport flight deals on Cheapflights vs. FlightHub >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 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 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?

The best time to book flights from Ontario to Detroit Metropolitan Wayne County Airport is 37 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, October is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $298). Flying from Ontario to Detroit Metropolitan Wayne County Airport in June is currently the most expensive (average of $568). 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.

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

Airfare is below average for this route at the moment.

Ontario to Detroit Metropolitan Wayne County Airport flights typically cost between $402 and $576 in November.
The cheapest round-trip price found within the last 5 days was $238 on Frontier (Nov 19-Nov 23).

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 July 29, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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
4,228 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Southwest
8.0
Very good
4,228 reviews
Southwest
8.0
Very good
4,228 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Delta
7.8
Good
8,483 reviews
Southwest
8.0
Very good
4,228 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
United Airlines
7.4
Good
10,048 reviews
Southwest
8.0
Very good
4,228 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
American Airlines
7.1
Good
11,839 reviews
Southwest
8.0
Very good
4,228 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Frontier
5.6
Fair
2,753 reviews
Southwest
8.0
Very good
4,228 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

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 45m. 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, Frontier ($170), Delta ($277), and American Airlines ($296) offers the cheapest pricing from Ontario to Detroit Metropolitan Wayne County Airport. Frontier is currently priced 61% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ontario to Detroit Metropolitan Wayne County Airport one-way?

    The cheapest airlines for a one-way flight from Ontario to Detroit Metropolitan Wayne County Airport are Frontier ($135), Southwest ($158), and Delta ($159).

  • 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, October is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $298). Flying from Ontario to Detroit Metropolitan Wayne County Airport in June is currently the most expensive (average of $568). 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
Dearborn
Southfield
Sterling Heights
Troy
Auburn Hills
Pontiac
Warren
Rochester Hills
Livonia
Southgate
Allen Park
Romulus
Roseville
Utica
Ypsilanti
Plymouth
Fremont
Port Huron
Waterford
Madison Heights

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 5 airlines flying from Ontario to Detroit

Discover the top 5 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 July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$170Average$322FlexibilityNo cancel feeOn-time62%
DeltaCheapest$277Average$499FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$296Average$495FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$305Average$567FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$340Average$587FlexibilityNo cancel feeOn-time69%

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