$59+ Cheap flights from Ontario to Detroit (ONT - DTT)
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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTT
Feb 26 — Mar 51
1 adult, Economy
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Find cheap flights from Ontario to Detroit with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Detroit
Cheapest flights from Ontario to DetroitExplore 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 January 27, 2026.
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 January 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Wed 2/258:40 am
ONT
- DTW
1 stop12h 00m
Frontier
Wed 3/48:30 am
DTW
- ONT
1 stop16h 04m
Frontier
Deal found 1/26![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Tue 3/38:40 am
ONT
- DTW
1 stop12h 15m
Frontier
Wed 3/1111:54 am
DTW
- ONT
1 stop15h 05m
Frontier
Deal found 1/26![Frontier logo]()
$128
This Booking.com deal was found by Cheapflights users on 1/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:35 am
ONT
- DTW
1 stop12h 20m
Frontier
Tue 3/38:30 am
DTW
- ONT
1 stop16h 04m
Frontier
Deal found 1/25![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 1/25. 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 2/196:05 am
ONT
- DTW
1 stop25h 59m
Frontier
Wed 2/258:30 am
DTW
- ONT
1 stop16h 04m
Frontier
Deal found 1/25![Frontier logo]()
$161
This Mytrip deal was found by Cheapflights users on 1/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:08 pm
ONT
- DTW
1 stop6h 47m
Frontier
Mon 3/26:52 pm
DTW
- ONT
1 stop8h 07m
Frontier
Deal found 1/25![Frontier logo]()
$168
This Booking.com deal was found by Cheapflights users on 1/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:30 am
ONT
- DTW
1 stop13h 10m
Frontier
Mon 2/236:52 pm
DTW
- ONT
1 stop29h 42m
Frontier
Deal found 1/26![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:15 am
ONT
- DTW
1 stop12h 17m
Frontier
Mon 3/910:27 pm
DTW
- ONT
1 stop28h 32m
Frontier
Deal found 1/25![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Wed 2/258:40 am
ONT
- DTW
1 stop12h 00m
Multiple Airlines
Wed 3/42:35 pm
DTW
- ONT
2 stops21h 59m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Tue 3/38:40 am
ONT
- DTW
1 stop12h 15m
Frontier
Tue 3/1711:54 am
DTW
- ONT
2 stops28h 34m
Frontier
Deal found 1/26![Frontier logo]()
$182
This CheapOair deal was found by Cheapflights users on 1/26. 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.
Wed 3/48:40 am
ONT
- DTW
1 stop12h 00m
Frontier
Wed 3/1111:54 am
DTW
- ONT
1 stop15h 05m
Frontier
Deal found 1/26![Frontier logo]()
$190
This Mytrip deal was found by Cheapflights users on 1/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:00 am
ONT
- DTW
1 stop14h 55m
Frontier
Tue 2/1710:32 am
DTW
- ONT
1 stop14h 02m
Frontier
Deal found 1/26![Frontier logo]()
$192
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 (DTT). 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 January 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $126 (Kiwi.com) |
One-way from | $59 (Trip.com) |
Popular in | January |
Cheapest in | September |
Average price | $569 |
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 January 27, 2026.
Use the filters below to find and compare flights from Ontario to Detroit that are best for you.
Fly from
Ontario
Fly to
Detroit
Route
Depart
Return
Price
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Fri 2/27
9:43 pm-11:55 pm
2 stops23h 12m
Detroit Metropolitan Wayne County
Tue 3/3
8:30 am-9:34 pm
1 stop16h 04m
$157
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Wed 3/4
8:40 am-11:40 pm
1 stop12h 00m
Detroit Metropolitan Wayne County
Wed 3/11
11:54 am-11:59 pm
1 stop15h 05m
$190
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Fri 3/6
6:15 am-9:32 pm
1 stop12h 17m
Detroit Metropolitan Wayne County
Mon 3/9
11:54 am-11:59 pm
1 stop15h 05m
$280
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 2/12
6:05 am-11:55 pm
1 stop14h 50m
Detroit Metropolitan Wayne County
Sun 2/15
7:15 am-2:29 pm
1 stop10h 14m
$290
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Wed 2/11
8:10 am-11:55 pm
1 stop12h 45m
Detroit Metropolitan Wayne County
Sun 2/15
7:15 am-2:29 pm
1 stop10h 14m
$290
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Sat 5/9
7:00 am-5:49 am
2 stops19h 49m
Detroit Metropolitan Wayne County
Mon 5/11
10:05 am-4:38 pm
1 stop9h 33m
$308
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Fri 2/27
4:02 pm-4:26 pm
1 stop21h 24m
Detroit Metropolitan Wayne County
Tue 3/10
5:22 pm-11:08 am
1 stop20h 46m
$353
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 4/23
3:26 pm-5:49 am
1 stop11h 23m
Detroit Metropolitan Wayne County
Mon 4/27
5:10 pm-9:45 am
1 stop19h 35m
$373
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 5/7
10:39 am-5:49 am
1 stop16h 10m
Detroit Metropolitan Wayne County
Sun 5/10
7:09 am-9:45 am
1 stop29h 36m
$383
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 5/7
7:00 am-5:19 pm
1 stop7h 19m
Detroit Metropolitan Wayne County
Sat 5/9
11:15 am-6:01 pm
1 stop9h 46m
$411
Showing 1-10 of 24 results
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Ontario-Detroit flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Detroit flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Detroit flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Detroit 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 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
What is the cheapest month to book a flight from Ontario to Detroit?
Currently, February is the cheapest month in which you can book a flight from Ontario to Detroit (average of $99). Flying from Ontario to Detroit in June is currently the most expensive (average of $173). 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?
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 January 27, 2026.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Ontario to Detroit. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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.
Traveling to a place near Detroit?
Book flights to Detroit if you plan to visit one of these locationsRoseville
Port Huron
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Alternative routes for Ontario to Detroit
See prices for flight routes from nearby airports that may be better suited for you.
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 January 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$177 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$170 | Average$285 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$272 | Average$442 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$292 | Average$439 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$321 | Average$496 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$352 | Average$477 | FlexibilityNo cancel fee | On-time63% |