$80+ Cheap flights from Ontario to Detroit (ONT - DTT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTT
Nov 18 — Nov 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Best
Last-minute
One-way
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 October 19, 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 October 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Sat 11/1411:52 am -
1 stop8h 59m
Tue 11/177:00 am -
1 stop6h 35m
Deal found 10/14![Frontier logo]()
$179
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Wed 11/186:30 am -
1 stop14h 21m
Wed 12/211:56 am -
1 stop25h 49m
Deal found 10/15![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Sat 11/146:30 am -
1 stop6h 00m
Wed 11/1810:07 am -
2 stops16h 44m
Deal found 10/14![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/176:30 am -
1 stop6h 00m
Tue 11/178:35 pm -
1 stop17h 00m
Deal found 10/14![Frontier logo]()
$194
This Trip.com deal was found by Cheapflights users on 10/14. 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.
Sat 11/146:30 am -
1 stop6h 00m
Mon 11/168:35 pm -
1 stop17h 00m
Deal found 10/14![Frontier logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/176:30 am -
1 stop6h 00m
Wed 11/1810:07 am -
2 stops16h 44m
Deal found 10/14![Frontier logo]()
$204
This Travelocity deal was found by Cheapflights users on 10/14. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am -
1 stop16h 09m
Thu 12/37:39 pm -
1 stop18h 06m
Deal found 10/14![Frontier logo]()
$205
This Trip.com deal was found by Cheapflights users on 10/14. 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.
Fri 12/411:30 am -
1 stop10h 39m
Tue 12/811:58 am -
1 stop25h 47m
Deal found 10/14![Frontier logo]()
$206
This Cheapflightsfares deal was found by Cheapflights users on 10/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:52 am -
1 stop8h 59m
Sat 11/218:31 pm -
1 stop17h 14m
Deal found 10/15![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/1311:52 am -
2 stops18h 27m
Wed 11/187:00 am -
1 stop6h 35m
Deal found 10/14![Frontier logo]()
$211
Best flights from Ontario to DetroitDiscover carefully curated flight deals from Ontario to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
Discover carefully curated flight deals from Ontario to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Tue 12/223:59 pm -
1 stop10h 01m
Fri 12/256:20 am -
1 stop11h 43m
Deal found 10/16![Alaska Airlines logo]()
$490
This Southwest deal was found by Cheapflights users on 10/15. 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.
Wed 12/232:00 pm -
2 stops7h 30m
Wed 12/303:45 pm -
2 stops9h 40m
Deal found 10/15![Southwest logo]()
$509
This Delta deal was found by Cheapflights users on 10/14. 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.
Mon 11/1611:10 pm -
2 stops16h 34m
Sat 11/212:48 pm -
1 stop8h 01m
Deal found 10/14![Delta logo]()
$517
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Thu 12/175:00 am -
1 stop6h 43m
Fri 1/88:35 am -
2 stops14h 50m
Deal found 10/14![United Airlines logo]()
$562
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 12/167:00 am -
1 stop7h 06m
Fri 1/88:35 am -
2 stops14h 50m
Deal found 10/14![United Airlines logo]()
$562
This Delta deal was found by Cheapflights users on 10/14. 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.
Fri 11/206:00 am -
1 stop6h 20m
Thu 11/2612:15 pm -
1 stop9h 15m
Deal found 10/14![Delta logo]()
$615
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Tue 12/223:59 pm -
1 stop10h 01m
Tue 12/296:20 am -
1 stop11h 43m
Deal found 10/16![Alaska Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Mon 12/216:27 pm -
2 stops12h 01m
Thu 12/3112:30 pm -
2 stops13h 23m
Deal found 10/16![United Airlines logo]()
$591
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 11/214:01 pm -
1 stop10h 40m
Tue 11/247:01 am -
1 stop11h 04m
Deal found 10/15![Alaska Airlines logo]()
$643
This Delta deal was found by Cheapflights users on 10/17. 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.
Fri 11/271:15 pm -
1 stop7h 43m
Sat 11/288:10 am -
1 stop7h 10m
Deal found 10/17![Delta logo]()
$655
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Tue 12/223:59 pm -
1 stop10h 01m
Mon 12/286:20 am -
1 stop31h 51m
Deal found 10/16![Alaska Airlines logo]()
$691
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Wed 12/233:59 pm -
1 stop10h 01m
Mon 12/286:20 am -
1 stop31h 51m
Deal found 10/16![Alaska Airlines logo]()
$691
Last-minute flights from Ontario to DetroitDiscover last-minute flight deals from Ontario to Detroit. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Detroit. Data last updated October 19, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Tue 11/105:07 pm -
2 stops23h 33m
Tue 11/177:00 am -
1 stop6h 35m
Deal found 10/15![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/1311:52 am -
2 stops18h 27m
Wed 11/187:00 am -
1 stop6h 35m
Deal found 10/14![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/1311:52 am -
1 stop8h 59m
Tue 11/177:00 am -
1 stop6h 35m
Deal found 10/14![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Sat 11/1411:52 am -
1 stop8h 59m
Tue 11/177:00 am -
1 stop6h 35m
Deal found 10/14![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
Sat 11/146:30 am -
1 stop6h 00m
Wed 11/1810:07 am -
2 stops16h 44m
Deal found 10/14![Frontier logo]()
$191
This Trip.com deal was found by Cheapflights users on 10/14. 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.
Sat 11/146:30 am -
1 stop6h 00m
Mon 11/168:35 pm -
1 stop17h 00m
Deal found 10/14![Frontier logo]()
$203
This Cheapflightsfares deal was found by Cheapflights users on 10/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:52 am -
1 stop8h 59m
Sat 11/218:31 pm -
1 stop17h 14m
Deal found 10/15![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/176:30 am -
1 stop6h 00m
Tue 11/178:35 pm -
1 stop17h 00m
Deal found 10/14![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 11/176:30 am -
1 stop6h 00m
Wed 11/1810:07 am -
2 stops16h 44m
Deal found 10/14![Frontier logo]()
$204
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Wed 11/186:30 am -
1 stop14h 21m
Wed 12/211:56 am -
1 stop25h 49m
Deal found 10/15![Frontier logo]()
$186
One-way flights from Ontario to DetroitSearch for one-way flight options from Ontario to Detroit. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
Search for one-way flight options from Ontario to Detroit. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This Super.com deal was found by Cheapflights users on 10/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:52 am -
1 stop8h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 10/17. 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 12/1511:30 am -
1 stop10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$94
This Super.com deal was found by Cheapflights users on 10/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:52 am -
1 stop24h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 10/17. 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 12/811:30 am -
1 stop6h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$99
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Mon 11/168:35 pm -
2 stops19h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$109
This Mytrip deal was found by Cheapflights users on 10/14. 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 11/126:30 am -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$118
This deal was found by Cheapflights users on 10/18. 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 10/226:15 am -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Frontier logo]()
$119
This Mytrip deal was found by Cheapflights users on 10/15. 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.
Tue 11/1011:52 am -
2 stops18h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 10/17. 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 12/1011:23 am -
2 stops23h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$123
This Mytrip deal was found by Cheapflights users on 10/17. 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.
Wed 11/1811:52 am -
1 stop8h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$130
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 October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $179 (Kiwi.com) |
One-way from | $80 (Super.com) |
Popular in | February |
Cheapest in | December |
Average price | $437 |
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 7,457,451 searches. Data last updated October 19, 2026.
Use the filters below to find and compare flights from Ontario to Detroit that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Wed 11/25
8:15 am-6:56 am
1 stop19h 41m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$161
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Thu 11/12
6:30 am-9:43 pm
2 stops12h 13m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$214
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Tue 12/22
1:01 pm-11:59 pm
1 stop7h 58m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$231
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Sat 10/24
5:25 pm-5:00 am
1 stop8h 35m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$255
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Fri 11/27
1:15 pm-11:58 pm
1 stop7h 43m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$303
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Fri 1/1
5:45 am-5:20 pm
2 stops8h 35m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$305
Quickest round-trip
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Sat 11/28
6:00 am-3:20 pm
1 stop6h 20m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$353
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Sat 10/31
7:07 am-6:39 pm
1 stop8h 32m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$358
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Sun 10/25
8:35 pm-9:53 am
2 stops10h 18m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$394
OntarioDetroit
ONT Ontario - DTW Detroit Metropolitan Wayne County
ONTDTW
Ontario
Sun 11/1
7:13 pm-9:27 am
2 stops11h 14m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$403
Showing 1-10 of 23 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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.
ONT-DTT
ONT-DTW
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
ONT-DTT
ONT-DTW
What is the cheapest month to book a flight from Ontario to Detroit?
Currently, December is the cheapest month in which you can book a flight from Ontario to Detroit (average of $400). Flying from Ontario to Detroit in February is currently the most expensive (average of $763). 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?
Airfare is below average for this route at the moment.
Ontario to Detroit flights typically cost between $385 and $505 in November.The cheapest round-trip price found within the last 5 days was $179 on Frontier (Nov 14-Nov 17).
How far ahead should I book a flight from Ontario to Detroit?
Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Detroit. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 October 19, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited 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.
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
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.
Alternative routes
Complete your trip
Detroit flight routes
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Detroit
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Detroit by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Detroit
Explore flights to Detroit departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.
Search flights from Ontario to Detroit by cabin class
Find flights from Ontario to Detroit, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Detroit flights
Browse other Ontario and Detroit flight options. Last updated on October 19, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$238 | Average$350 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$314 | Average$524 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$332 | Average$512 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$338 | Average$567 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$340 | Average$578 | FlexibilityNo cancel fee | On-time69% |