$125+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTT
Aug 23 — Aug 301
Round-trip
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
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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 July 24, 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 July 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 9/110:59 am
ONT
- DTW
1 stop28h 56m
Frontier
Wed 9/93:34 pm
DTW
- ONT
2 stops46h 09m
Frontier
Deal found 7/19![Frontier logo]()
$249
This Frontier deal was found by Cheapflights users on 7/23. 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 8/2010:49 am
ONT
- DTW
1 stop10h 10m
Frontier
Wed 8/269:00 am
DTW
- ONT
1 stop13h 01m
Frontier
Deal found 7/23![Frontier logo]()
$264
This Super.com deal was found by Cheapflights users on 7/22. 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.
Thu 8/278:17 am
ONT
- DTW
1 stop6h 58m
Frontier
Mon 8/317:55 am
DTW
- ONT
1 stop18h 55m
Frontier
Deal found 7/22![Frontier logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/1510:49 am
ONT
- DTW
1 stop10h 10m
Frontier
Tue 8/186:40 pm
DTW
- ONT
2 stops32h 10m
Frontier
Deal found 7/21![Frontier logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/116:00 am
ONT
- DTW
1 stop27h 34m
Frontier
Tue 8/186:40 pm
DTW
- ONT
2 stops32h 10m
Frontier
Deal found 7/22![Frontier logo]()
$270
This Super.com deal was found by Cheapflights users on 7/23. 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.
Thu 8/2010:49 am
ONT
- DTW
1 stop21h 36m
Frontier
Mon 8/3112:20 pm
DTW
- ONT
1 stop24h 44m
Frontier
Deal found 7/23![Frontier logo]()
$272
This Super.com deal was found by Cheapflights users on 7/23. 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.
Tue 10/138:07 am
ONT
- DTW
1 stop10h 27m
Frontier
Thu 10/152:00 pm
DTW
- ONT
1 stop27h 47m
Frontier
Deal found 7/23![Frontier logo]()
$273
This CheapOair deal was found by Cheapflights users on 7/22. 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.
Mon 8/176:00 am
ONT
- DTW
1 stop26h 25m
Frontier
Sat 8/2212:20 pm
DTW
- ONT
1 stop14h 30m
Frontier
Deal found 7/22![Frontier logo]()
$274
This CheapOair deal was found by Cheapflights users on 7/23. 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.
Mon 8/1710:49 am
ONT
- DTW
1 stop21h 36m
Frontier
Wed 8/268:30 am
DTW
- ONT
1 stop10h 24m
Frontier
Deal found 7/23![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 8/2410:49 am
ONT
- DTW
2 stops35h 15m
Frontier
Thu 8/2712:20 pm
DTW
- ONT
1 stop14h 30m
Frontier
Deal found 7/23![Frontier logo]()
$277
This Trip.com deal was found by Cheapflights users on 7/22. 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.
Tue 11/1010:48 am
ONT
- DTW
1 stop7h 15m
Frontier
Wed 11/116:07 pm
DTW
- ONT
1 stop23h 30m
Frontier
Deal found 7/22![Frontier logo]()
$278
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 July 24, 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 July 24, 2026.
This Southwest deal was found by Cheapflights users on 7/24. 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.
Thu 10/151:05 pm
ONT
- DTW
2 stops7h 30m
Southwest
Mon 10/192:45 pm
DTW
- ONT
2 stops9h 35m
Southwest
Deal found 7/24![Southwest logo]()
$413
This United Airlines deal was found by Cheapflights users on 7/21. 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 8/125:00 am
ONT
- DTW
2 stops9h 00m
United Airlines
Mon 8/1712:35 pm
DTW
- ONT
2 stops10h 26m
United Airlines
Deal found 7/21![United Airlines logo]()
$422
This Delta deal was found by Cheapflights users on 7/23. 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.
Thu 8/2012:00 pm
ONT
- DTW
1 stop8h 46m
Delta
Sun 8/235:20 am
DTW
- ONT
1 stop8h 22m
Delta
Deal found 7/23![Delta logo]()
$504
This Southwest deal was found by Cheapflights users on 7/19. 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 8/269:40 am
ONT
- DTW
2 stops8h 50m
Southwest
Sat 9/57:15 am
DTW
- ONT
1 stop6h 05m
Southwest
Deal found 7/19![Southwest logo]()
$431
This Southwest deal was found by Cheapflights users on 7/23. 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 10/79:15 am
ONT
- DTW
2 stops7h 50m
Southwest
Wed 10/142:25 pm
DTW
- ONT
2 stops9h 20m
Southwest
Deal found 7/23![Southwest logo]()
$436
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Tue 8/259:01 am
ONT
- DTW
2 stops11h 53m
United Airlines
Sat 8/294:26 pm
DTW
- ONT
1 stop9h 09m
United Airlines
Deal found 7/21![United Airlines logo]()
$508
This Delta deal was found by Cheapflights users on 7/23. 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 8/2110:00 pm
ONT
- DTW
1 stop8h 11m
Delta
Thu 8/276:20 am
DTW
- ONT
1 stop7h 22m
Delta
Deal found 7/23![Delta logo]()
$536
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Sat 8/225:00 am
ONT
- DTW
1 stop6h 27m
United Airlines
Mon 8/2412:35 pm
DTW
- ONT
2 stops13h 24m
United Airlines
Deal found 7/23![United Airlines logo]()
$508
This Southwest deal was found by Cheapflights users on 7/20. 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.
Thu 9/35:40 am
ONT
- DTW
2 stops7h 40m
Southwest
Tue 9/86:00 am
DTW
- ONT
2 stops9h 30m
Southwest
Deal found 7/20![Southwest logo]()
$494
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sat 8/155:00 am
ONT
- DTW
2 stops12h 29m
United Airlines
Mon 8/246:10 pm
DTW
- ONT
1 stop7h 25m
United Airlines
Deal found 7/21![United Airlines logo]()
$508
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 10/225:30 am
ONT
- DTW
2 stops8h 25m
Southwest
Sun 10/256:05 am
DTW
- ONT
2 stops9h 05m
Southwest
Deal found 7/22![Southwest logo]()
$504
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 9/35:15 am
ONT
- DTW
2 stops8h 05m
Southwest
Mon 9/75:55 am
DTW
- ONT
2 stops8h 30m
Southwest
Deal found 7/22![Southwest logo]()
$539
Last-minute flights from Ontario to DetroitDiscover last-minute flight deals from Ontario to Detroit. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Detroit. Data last updated July 24, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/116:00 am
ONT
- DTW
1 stop27h 34m
Frontier
Tue 8/186:40 pm
DTW
- ONT
2 stops32h 10m
Frontier
Deal found 7/22![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/1510:49 am
ONT
- DTW
1 stop10h 10m
Frontier
Tue 8/186:40 pm
DTW
- ONT
2 stops32h 10m
Frontier
Deal found 7/21![Frontier logo]()
$269
This CheapOair deal was found by Cheapflights users on 7/22. 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.
Mon 8/176:00 am
ONT
- DTW
1 stop26h 25m
Frontier
Sat 8/2212:20 pm
DTW
- ONT
1 stop14h 30m
Frontier
Deal found 7/22![Frontier logo]()
$274
This CheapOair deal was found by Cheapflights users on 7/23. 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.
Mon 8/1710:49 am
ONT
- DTW
1 stop21h 36m
Frontier
Wed 8/268:30 am
DTW
- ONT
1 stop10h 24m
Frontier
Deal found 7/23![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/1910:59 am
ONT
- DTW
1 stop28h 56m
Frontier
Wed 8/266:00 am
DTW
- ONT
2 stops28h 32m
Frontier
Deal found 7/20![Frontier logo]()
$279
This Frontier deal was found by Cheapflights users on 7/23. 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 8/2010:49 am
ONT
- DTW
1 stop10h 10m
Frontier
Wed 8/269:00 am
DTW
- ONT
1 stop13h 01m
Frontier
Deal found 7/23![Frontier logo]()
$264
This Super.com deal was found by Cheapflights users on 7/23. 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.
Thu 8/2010:49 am
ONT
- DTW
1 stop21h 36m
Frontier
Mon 8/3112:20 pm
DTW
- ONT
1 stop24h 44m
Frontier
Deal found 7/23![Frontier logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 8/2410:49 am
ONT
- DTW
2 stops35h 15m
Frontier
Thu 8/2712:20 pm
DTW
- ONT
1 stop14h 30m
Frontier
Deal found 7/23![Frontier logo]()
$277
This Super.com deal was found by Cheapflights users on 7/22. 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.
Thu 8/278:17 am
ONT
- DTW
1 stop6h 58m
Frontier
Mon 8/317:55 am
DTW
- ONT
1 stop18h 55m
Frontier
Deal found 7/22![Frontier logo]()
$267
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 July 24, 2026.
Search for one-way flight options from Ontario to Detroit. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
This Trip.com deal was found by Cheapflights users on 7/20. 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 9/116:00 am
ONT
- DTW
1 stop15h 24m
Frontier
Deal found 7/20![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 7/21. 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.
Thu 8/278:17 am
ONT
- DTW
1 stop6h 58m
Frontier
Deal found 7/21![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 7/22. 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.
Wed 9/232:55 pm
ONT
- DTW
1 stop6h 29m
Frontier
Deal found 7/22![Frontier logo]()
$131
This Frontier deal was found by Cheapflights users on 7/22. 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 8/138:17 am
ONT
- DTW
1 stop6h 58m
Frontier
Deal found 7/22![Frontier logo]()
$132
This Super.com deal was found by Cheapflights users on 7/22. 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.
Mon 9/76:00 am
ONT
- DTW
1 stop16h 13m
Frontier
Deal found 7/22![Frontier logo]()
$137
This Frontier deal was found by Cheapflights users on 7/23. 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 8/2010:49 am
ONT
- DTW
1 stop10h 10m
Frontier
Deal found 7/23![Frontier logo]()
$138
This Super.com deal was found by Cheapflights users on 7/20. 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.
Thu 10/12:55 pm
ONT
- DTW
1 stop6h 29m
Frontier
Deal found 7/20![Frontier logo]()
$141
This Frontier deal was found by Cheapflights users on 7/20. 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 9/38:17 am
ONT
- DTW
1 stop6h 58m
Frontier
Deal found 7/20![Frontier logo]()
$145
This Super.com deal was found by Cheapflights users on 7/20. 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.
Wed 9/26:00 am
ONT
- DTW
1 stop26h 25m
Frontier
Deal found 7/20![Frontier logo]()
$147
This Super.com deal was found by Cheapflights users on 7/20. 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.
Mon 8/109:36 am
ONT
- DTW
1 stop30h 13m
Frontier
Deal found 7/20![Frontier logo]()
$148
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 July 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $249 (Kiwi.com) |
One-way from | $125 (Trip.com) |
Popular in | February |
Cheapest in | September |
Average price | $560 |
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 July 24, 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 - DTW
ONTDTW
Ontario
Thu 10/15
1:05 pm-11:35 pm
2 stops7h 30m
Detroit Metropolitan Wayne County
Mon 10/19
2:45 pm-9:20 pm
2 stops9h 35m
$413
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Wed 8/12
5:00 am-5:00 pm
2 stops9h 00m
Detroit Metropolitan Wayne County
Mon 8/17
12:35 pm-8:01 pm
2 stops10h 26m
$422
Quickest round-trip
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Wed 8/26
9:40 am-9:30 pm
2 stops8h 50m
Detroit Metropolitan Wayne County
Sat 9/5
7:15 am-10:20 am
1 stop6h 05m
$431
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Wed 10/7
9:15 am-8:05 pm
2 stops7h 50m
Detroit Metropolitan Wayne County
Wed 10/14
2:25 pm-8:45 pm
2 stops9h 20m
$436
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 9/3
5:40 am-4:20 pm
2 stops7h 40m
Detroit Metropolitan Wayne County
Tue 9/8
6:00 am-12:30 pm
2 stops9h 30m
$494
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 8/20
12:00 pm-11:46 pm
1 stop8h 46m
Detroit Metropolitan Wayne County
Sun 8/23
5:20 am-10:42 am
1 stop8h 22m
$504
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 10/22
5:30 am-4:55 pm
2 stops8h 25m
Detroit Metropolitan Wayne County
Sun 10/25
6:05 am-12:10 pm
2 stops9h 05m
$504
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Tue 8/25
9:01 am-11:54 pm
2 stops11h 53m
Detroit Metropolitan Wayne County
Sat 8/29
4:26 pm-10:35 pm
1 stop9h 09m
$508
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Sat 8/22
5:00 am-2:27 pm
1 stop6h 27m
Detroit Metropolitan Wayne County
Mon 8/24
12:35 pm-10:59 pm
2 stops13h 24m
$508
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Sat 8/15
5:00 am-8:29 pm
2 stops12h 29m
Detroit Metropolitan Wayne County
Mon 8/24
6:10 pm-10:35 pm
1 stop7h 25m
$508
Showing 1-10 of 22 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 July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 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.
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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
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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 $369). 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 $456 and $518 in September.The cheapest round-trip price found within the last 5 days was $249 on Frontier (Sep 1-Sep 9).
How far ahead should I book a flight from Ontario to Detroit?
Booking 41 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 July 24, 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.
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
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
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Alternative routes for Ontario to Detroit
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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 July 24, 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 July 24, 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 July 24, 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 2,558,603 searches. Data last updated July 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$170 | Average$321 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$277 | Average$499 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$492 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$305 | Average$567 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$340 | Average$587 | FlexibilityNo cancel fee | On-time69% |