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$134+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTW
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 August, 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 junio 12, 2025.

Round-trip from

$235
(Booking.com)

One-way from

$134
(Trip.com)

Popular in

March

Cheapest in

October

Average price

$392
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. 10% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/10. 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.
lun. 7/76:00 amONT - DTW
1 stop6h 28mFrontier
lun. 7/1410:08 pmDTW - ONT
1 stop21h 12mFrontier
Deal found 6/10$235
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/2711:39 amONT - DTW
1 stop14h 26mAlaska Airlines
mié. 9/104:51 pmDTW - ONT
1 stop20h 53mAlaska Airlines
Deal found 6/12$296
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/41:15 pmONT - DTW
1 stop8h 08mDelta
jue. 8/145:25 amDTW - ONT
1 stop8h 10mDelta
Deal found 6/12$297
This American Airlines deal was found by Cheapflights users on 6/11. 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.
jue. 8/2812:22 pmONT - DTW
2 stops9h 18mAmerican Airlines
dom. 8/318:06 amDTW - ONT
1 stop10h 26mAmerican Airlines
Deal found 6/11$340
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/1610:56 pmONT - DTW
1 stop9h 34mJetBlue
vie. 9/2612:16 pmDTW - ONT
1 stop12h 13mJetBlue
Deal found 6/10$372
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/275:10 amONT - DTW
2 stops8h 41mUnited Airlines
mié. 9/109:01 amDTW - ONT
2 stops11h 36mUnited Airlines
Deal found 6/12$397

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 junio 12, 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

lun. 7/7

6:00 am-3:28 pm

1 stop6h 28m

Detroit Metropolitan Wayne County

lun. 7/14

10:08 pm-4:20 pm

1 stop21h 12m

$235

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

mié. 8/27

11:39 am-5:05 am

1 stop14h 26m

Detroit Metropolitan Wayne County

mié. 9/10

4:51 pm-10:44 am

1 stop20h 53m

$296

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

lun. 8/4

1:15 pm-12:23 am

1 stop8h 08m

Detroit Metropolitan Wayne County

jue. 8/14

5:25 am-10:35 am

1 stop8h 10m

$297

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

jue. 8/28

12:22 pm-12:40 am

2 stops9h 18m

Detroit Metropolitan Wayne County

dom. 8/31

8:06 am-3:32 pm

1 stop10h 26m

$340

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

mar. 9/16

10:56 pm-11:30 am

1 stop9h 34m

Detroit Metropolitan Wayne County

vie. 9/26

12:16 pm-9:29 pm

1 stop12h 13m

$372

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

mié. 8/27

5:10 am-4:51 pm

2 stops8h 41m

Detroit Metropolitan Wayne County

mié. 9/10

9:01 am-5:37 pm

2 stops11h 36m

$397

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

mié. 7/2

7:00 am-7:07 pm

1 stop9h 07m

$134

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

lun. 9/8

3:04 pm-5:05 am

1 stop11h 01m

$148

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

mié. 8/20

10:00 pm-7:55 am

1 stop6h 55m

$149

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

sáb. 10/18

12:59 am-12:45 am

1 stop20h 46m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 13 results
1
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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 June 9, 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, April is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $257). 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 junio 12, 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.

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 Metropolitan Wayne County Airport 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 Metropolitan Wayne County Airport 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 Metropolitan Wayne County Airport, 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 junio 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and Hawaiian Airlines from Ontario to Detroit. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Metropolitan Wayne County Airport round-trip?

    According to our current data, Frontier ($235), Alaska Airlines ($296), and Delta ($297) offers the cheapest pricing from Ontario to Detroit Metropolitan Wayne County Airport. Frontier is currently priced 47% 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 Hawaiian Airlines ($148), Delta ($149), and Frontier ($153).

  • 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, April is the cheapest month in which you can book a flight from Ontario to Detroit Metropolitan Wayne County Airport (average of $257). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Sterling Heights
Warren
Dearborn
Novi
Troy
Southfield
Romulus
Clarkston
Plymouth
Auburn Hills
Utica
Monroe
Wixom
Roseville
Port Huron
Put-in-Bay
Belleville
Brighton
Livonia
Fremont

Browse thousands of different options on Cheapflights for your next trip

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$127Average$252FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$145Average$250FlexibilityNo cancel feeOn-time65%
DeltaCheapest$292Average$525FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$341Average$534FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$356Average$498FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$394Average$590FlexibilityNo cancel feeOn-time63%

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