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Ontario

$59+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ONT
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 enero 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
mar. 2/248:30 am
DTW
-
ONT
1 stop16h 04m
Frontier
mar. 3/38:40 am
ONT
-
DTW
1 stop12h 15m
Frontier
Deal found 1/27$130
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/38:30 am
DTW
-
ONT
1 stop16h 04m
Frontier
mar. 3/106:15 am
ONT
-
DTW
1 stop25h 44m
Frontier
Deal found 1/28$134
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
mar. 2/242:35 pm
DTW
-
ONT
2 stops33h 59m
Multiple Airlines
mar. 3/38:40 am
ONT
-
DTW
1 stop12h 15m
Multiple Airlines
Deal found 1/27$142
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
vie. 2/2710:00 pm
DTW
-
ONT
2 stops28h 59m
Frontier
mar. 3/38:40 am
ONT
-
DTW
1 stop12h 15m
Frontier
Deal found 1/27$147
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
mié. 2/188:30 am
DTW
-
ONT
1 stop16h 04m
Frontier
mié. 2/258:40 am
ONT
-
DTW
1 stop12h 00m
Frontier
Deal found 1/28$148
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
dom. 3/17:15 pm
DTW
-
ONT
1 stop20h 56m
Multiple Airlines
mar. 3/38:40 am
ONT
-
DTW
1 stop12h 15m
Multiple Airlines
Deal found 1/27$155
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
jue. 2/267:15 pm
DTW
-
ONT
1 stop21h 11m
Multiple Airlines
mar. 3/38:40 am
ONT
-
DTW
1 stop12h 15m
Multiple Airlines
Deal found 1/28$156
This CheapOair deal was found by Cheapflights users on 1/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/215:21 pm
DTW
-
ONT
1 stop9h 38m
Frontier
sáb. 2/286:00 am
ONT
-
DTW
1 stop14h 55m
Frontier
Deal found 1/27$158
This Mytrip deal was found by Cheapflights users on 1/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/118:30 am
DTW
-
ONT
1 stop16h 04m
Frontier
mié. 2/258:40 am
ONT
-
DTW
1 stop12h 00m
Frontier
Deal found 1/27$164
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
dom. 3/17:15 pm
DTW
-
ONT
1 stop20h 56m
Multiple Airlines
mié. 3/48:40 am
ONT
-
DTW
1 stop12h 00m
Multiple Airlines
Deal found 1/28$166

Find 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 enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(Kiwi.com)

One-way from

$59
(Trip.com)

Popular in

November

Cheapest in

June

Average price

$358
Provider with most accurate pricing for Detroit Metropolitan Wayne County-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Ontario flights.
Search Deals
From Detroit Metropolitan Wayne County to Ontario
Search Deals
One-way flight from Detroit Metropolitan Wayne County to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 29, 2026.
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

mié. 4/1

3:35 pm-9:40 pm

1 stop9h 05m

Ontario

jue. 4/9

12:50 pm-12:15 am

1 stop8h 25m

$316

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

jue. 4/30

2:05 pm-9:00 pm

1 stop9h 55m

Ontario

sáb. 5/9

1:00 pm-12:02 am

1 stop8h 02m

$331

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mié. 3/18

8:09 am-12:23 pm

1 stop7h 14m

Ontario

jue. 3/19

1:20 pm-11:59 pm

1 stop7h 39m

$331

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

sáb. 4/25

7:09 am-2:32 pm

1 stop10h 23m

Ontario

sáb. 5/2

10:39 am-5:49 am

1 stop16h 10m

$340

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mar. 4/28

7:09 am-2:32 pm

1 stop10h 23m

Ontario

vie. 5/1

7:59 pm-5:49 am

1 stop30h 50m

$350

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

sáb. 4/25

3:29 pm-8:36 pm

1 stop8h 07m

Ontario

sáb. 5/2

10:43 am-11:58 pm

2 stops10h 15m

$352

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mar. 5/5

7:09 am-2:32 pm

1 stop10h 23m

Ontario

vie. 5/8

7:59 pm-4:14 pm

1 stop17h 15m

$353

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mar. 3/31

4:15 pm-11:10 pm

2 stops9h 55m

Ontario

mar. 4/7

10:30 am-9:35 pm

2 stops8h 05m

$357

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

sáb. 2/28

10:28 am-8:50 pm

2 stops13h 22m

Ontario

sáb. 3/7

6:37 pm-9:04 am

2 stops11h 27m

$367

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

mié. 3/18

4:52 pm-11:59 pm

1 stop10h 07m

Ontario

lun. 3/30

7:08 pm-3:56 pm

1 stop17h 48m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 23 results
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Compare providers for flights from Detroit to Ontario

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 Detroit to Ontario in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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 Detroit Metropolitan Wayne County Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit Metropolitan Wayne County Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit Metropolitan Wayne County Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Ontario 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 Detroit Metropolitan Wayne County Airport-Ontario 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 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 January 23, 2026.

The best time to book flights from Detroit Metropolitan Wayne County Airport to Ontario is 33 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, February is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Ontario (average of $103). Flying from Detroit Metropolitan Wayne County Airport to Ontario in June is currently the most expensive (average of $159). 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.

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 enero 29, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines 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.
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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 Detroit to Ontario. 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 Detroit Metropolitan Wayne County Airport to Ontario?

    Southwest, Delta, and Alaska Airlines can get you from Detroit Metropolitan Wayne County Airport to Ontario in just under 9h 05m. Your travel time can differ by up to 1h 18m. There are 1929 mi between Detroit Metropolitan Wayne County Airport and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $155. Other airlines that can offer you cheap pricing are United Airlines, from $266, and American Airlines, from $329. Users have found that Frontier is 62% 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 $92. United Airlines flights start at $159 while deals on Southwest start at $176 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, February is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Ontario (average of $103). Flying from Detroit Metropolitan Wayne County Airport to Ontario in June is currently the most expensive (average of $159). 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.

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Top 5 airlines flying from Detroit to Ontario

Discover the top 5 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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$155Average$319FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$266Average$502FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$329Average$418FlexibilityNo cancel feeOn-time71%
DeltaCheapest$344Average$423FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$353Average$411FlexibilityNo cancel feeOn-time63%

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