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$112+ Cheap flights from Detroit Metropolitan Wayne County Airport to Ontario (DTW - ONT)

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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Detroit Metropolitan Wayne County to Ontario are usually found in October or June, booked 80 days in advance, depart on a Sunday or Monday and return on a Friday

Cheap flight deals from Detroit to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) to Ontario (ONT). 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 julio 30, 2025.

Round-trip from

$223
(Trip.com)

One-way from

$112
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$448
From Detroit Metropolitan Wayne County to Ontario
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One-way flight from Detroit Metropolitan Wayne County to Ontario
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Highest demand for flights based on searches. 13% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Detroit to Ontario

Cheapest flights from Detroit to Ontario
Explore the most affordable flight options available from Detroit to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/66:10 amDTW - ONT
1 stop16h 44mFrontier
lun. 10/136:11 pmONT - DTW
1 stop27h 34mFrontier
Deal found 7/27$223
This American Airlines deal was found by Cheapflights users on 7/29. 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.
sáb. 10/47:00 amDTW - ONT
1 stop7h 55mAmerican Airlines
mié. 10/810:09 amONT - DTW
1 stop10h 00mAmerican Airlines
Deal found 7/29$327
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 9/56:30 amDTW - ONT
1 stop10h 42mAlaska Airlines
lun. 9/83:06 pmONT - DTW
1 stop11h 01mAlaska Airlines
Deal found 7/29$336
This Delta deal was found by Cheapflights users on 7/29. 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.
sáb. 10/184:25 pmDTW - ONT
1 stop9h 24mDelta
lun. 10/2010:29 pmONT - DTW
1 stop7h 56mDelta
Deal found 7/29$337
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/57:30 amDTW - ONT
2 stops8h 10mSouthwest
mar. 9/1611:55 amONT - DTW
1 stop7h 35mSouthwest
Deal found 7/28$342
This lastminute.com deal was found by Cheapflights users on 7/29. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/1812:16 pmDTW - ONT
1 stop12h 13mJetBlue
sáb. 9/2010:56 pmONT - DTW
1 stop9h 34mJetBlue
Deal found 7/29$356

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to Ontario 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 julio 30, 2025.
Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport to Ontario that are best for you.

Fly from

Detroit

Fly to

Ontario

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

lun. 10/6

6:10 am-7:54 pm

1 stop16h 44m

Ontario

lun. 10/13

6:11 pm-12:45 am

1 stop27h 34m

$223

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

sáb. 10/4

7:00 am-11:55 am

1 stop7h 55m

Ontario

mié. 10/8

10:09 am-11:09 pm

1 stop10h 00m

$327

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

vie. 9/5

6:30 am-2:12 pm

1 stop10h 42m

Ontario

lun. 9/8

3:06 pm-5:07 am

1 stop11h 01m

$336

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

sáb. 10/18

5:45 am-10:26 am

1 stop7h 41m

Ontario

mar. 10/21

10:29 pm-9:25 am

1 stop7h 56m

$337

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

vie. 9/5

7:30 am-12:40 pm

2 stops8h 10m

Ontario

mar. 9/16

11:55 am-10:30 pm

1 stop7h 35m

$342

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

jue. 9/18

12:16 pm-9:29 pm

1 stop12h 13m

Ontario

sáb. 9/20

10:56 pm-11:30 am

1 stop9h 34m

$356

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mar. 8/26

11:21 am-4:18 pm

1 stop7h 57m

$112

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

lun. 9/29

6:10 am-7:54 pm

1 stop16h 44m

$115

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mié. 10/1

6:30 am-2:12 pm

1 stop10h 42m

$168

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mar. 8/19

8:20 pm-11:40 pm

1 stop6h 20m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 14 results
1
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Best time to book a flight from Detroit to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Detroit 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 Detroit Metropolitan Wayne County Airport to Ontario

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

Use this chart to determine the optimal time to book a round-trip flight from Detroit to Ontario. Price data was last updated on July 25, 2025.

The best time to book flights from Detroit Metropolitan Wayne County Airport to Ontario is 79 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 Detroit Metropolitan Wayne County Airport to Ontario?

Currently, August is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Ontario (average of $246). Flying from Detroit Metropolitan Wayne County Airport to Ontario in March is currently the most expensive (average of $328). 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 DTW to ONT?

Find hourly flight availability from Detroit to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

It’s optimal to fly from Detroit Metropolitan Wayne County Airport to Ontario in the evening. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight in the afternoon.

What’s the top layover airport for flights from Detroit Metropolitan Wayne County Airport to Ontario?

Share of 1-stop round-trip flights from Detroit Metropolitan Wayne County Airport to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 75% of 1-stop itineraries from Detroit Metropolitan Wayne County Airport to Ontario on Cheapflights.

What’s the cheapest layover airport for flights from Detroit Metropolitan Wayne County Airport to Ontario?

Average round-trip fare for 1-stop flights from Detroit Metropolitan Wayne County Airport to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $400.

What’s the fastest layover option from Detroit Metropolitan Wayne County Airport to Ontario?

Shortest average travel time for 1-stop one-way flights from Detroit Metropolitan Wayne County Airport to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 6h 25m.

Which airport typically offers the quickest layover for flights from Detroit Metropolitan Wayne County Airport to Ontario?

Average layover duration for 1-stop one-way flights from Detroit Metropolitan Wayne County Airport to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 0h 58m.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated julio 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Detroit Metropolitan Wayne County Airport to Ontario 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

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 Detroit to Ontario. 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 Detroit Metropolitan Wayne County Airport to Ontario round-trip?

    Cheapflights users have booked flights from Detroit Metropolitan Wayne County Airport to Ontario round-trip from $223. Other airlines that can offer you cheap pricing are American Airlines, from $327, and Alaska Airlines, from $336. Users have found that Frontier is 47% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $115. Alaska Airlines flights start at $168 while deals on Delta start at $169 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Detroit to Ontario 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 Detroit Metropolitan Wayne County Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Ontario (average of $246). Flying from Detroit Metropolitan Wayne County Airport to Ontario in March is currently the most expensive (average of $328). 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

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Top 6 airlines flying from Detroit to Ontario

Discover the top 6 airlines that operate flights from Detroit to Ontario. 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$154Average$275FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$177Average$206FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$329Average$511FlexibilityNo cancel feeOn-time69%
DeltaCheapest$344Average$436FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$352Average$456FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$390Average$485FlexibilityNo cancel feeOn-time63%

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