$126+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DTT
Jun 17 — Jun 241
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
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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 May 18, 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 May 18, 2026.
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:06 pm
ONT
- DTW
1 stop19h 37m
Frontier
Sun 6/78:52 am
DTW
- ONT
1 stop25h 16m
Frontier
Deal found 5/12![Frontier logo]()
$250
This Trip.com deal was found by Cheapflights users on 5/13. 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.
Thu 7/25:43 pm
ONT
- DTW
1 stop22h 08m
Frontier
Fri 7/108:51 am
DTW
- ONT
1 stop9h 16m
Frontier
Deal found 5/13![Frontier logo]()
$262
This Frontier deal was found by Cheapflights users on 5/13. 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.
Wed 7/223:40 pm
ONT
- DTW
1 stop12h 41m
Frontier
Wed 7/298:52 am
DTW
- ONT
1 stop11h 57m
Frontier
Deal found 5/13![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Wed 10/2111:38 am
ONT
- DTW
1 stop9h 46m
Frontier
Sat 10/247:20 am
DTW
- ONT
1 stop19h 35m
Frontier
Deal found 5/14![Frontier logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/36:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Sun 6/77:53 pm
DTW
- ONT
2 stops41h 12m
Frontier
Deal found 5/13![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/36:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Mon 6/86:05 pm
DTW
- ONT
2 stops43h 00m
Frontier
Deal found 5/13![Frontier logo]()
$279
This CheapOair deal was found by Cheapflights users on 5/13. 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.
Tue 8/115:43 pm
ONT
- DTW
1 stop22h 17m
Frontier
Tue 8/181:22 pm
DTW
- ONT
1 stop23h 43m
Frontier
Deal found 5/13![Frontier logo]()
$280
This Frontier deal was found by Cheapflights users on 5/13. 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.
Sun 7/56:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Tue 7/148:00 am
DTW
- ONT
1 stop29h 03m
Frontier
Deal found 5/13![Frontier logo]()
$281
This Booking.com deal was found by Cheapflights users on 5/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/110:50 am
ONT
- DTW
1 stop22h 56m
Frontier
Tue 7/148:51 am
DTW
- ONT
1 stop9h 16m
Frontier
Deal found 5/14![Frontier logo]()
$282
This Booking.com deal was found by Cheapflights users on 5/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:55 pm
ONT
- DTW
1 stop19h 10m
Frontier
Tue 10/137:20 am
DTW
- ONT
1 stop19h 35m
Frontier
Deal found 5/14![Frontier logo]()
$283
This Frontier deal was found by Cheapflights users on 5/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/143:40 pm
ONT
- DTW
1 stop12h 41m
Frontier
Sat 7/258:52 am
DTW
- ONT
1 stop11h 57m
Frontier
Deal found 5/17![Frontier logo]()
$284
This Trip.com deal was found by Cheapflights users on 5/13. 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.
Thu 9/35:43 pm
ONT
- DTW
1 stop22h 08m
Frontier
Tue 9/88:52 am
DTW
- ONT
1 stop12h 00m
Frontier
Deal found 5/13![Frontier logo]()
$288
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 May 18, 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 May 18, 2026.
This Delta deal was found by Cheapflights users on 5/14. 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.
Wed 6/171:00 pm
ONT
- DTW
1 stop8h 11m
Delta
Mon 6/228:25 am
DTW
- ONT
1 stop6h 45m
Delta
Deal found 5/14![Delta logo]()
$428
This Southwest deal was found by Cheapflights users on 5/13. 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 7/212:45 pm
ONT
- DTW
2 stops8h 20m
Southwest
Sat 7/41:35 pm
DTW
- ONT
2 stops9h 25m
Southwest
Deal found 5/13![Southwest logo]()
$490
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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.
Thu 5/286:00 am
ONT
- DTW
2 stops14h 37m
Alaska Airlines
Wed 6/36:08 pm
DTW
- ONT
1 stop8h 50m
Alaska Airlines
Deal found 5/13![Alaska Airlines logo]()
$571
This United Airlines deal was found by Cheapflights users on 5/13. 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 8/115:00 am
ONT
- DTW
2 stops15h 45m
United Airlines
Thu 8/1310:30 am
DTW
- ONT
2 stops12h 31m
United Airlines
Deal found 5/13![United Airlines logo]()
$621
This Southwest deal was found by Cheapflights users on 5/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2412:45 pm
ONT
- DTW
2 stops8h 20m
Southwest
Tue 7/287:05 am
DTW
- ONT
2 stops8h 35m
Southwest
Deal found 5/17![Southwest logo]()
$492
This Southwest deal was found by Cheapflights users on 5/15. 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.
Tue 6/168:25 pm
ONT
- DTW
2 stops10h 35m
Southwest
Sat 6/205:25 pm
DTW
- ONT
2 stops8h 25m
Southwest
Deal found 5/15![Southwest logo]()
$537
This Southwest deal was found by Cheapflights users on 5/13. 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.
Fri 6/2612:45 pm
ONT
- DTW
2 stops8h 20m
Southwest
Thu 7/165:25 am
DTW
- ONT
2 stops8h 55m
Southwest
Deal found 5/13![Southwest logo]()
$543
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:03 pm
ONT
- DTW
1 stop10h 46m
Alaska Airlines
Sat 6/131:02 pm
DTW
- ONT
2 stops13h 09m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$682
This Southwest deal was found by Cheapflights users on 5/15. 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.
Thu 6/2512:40 pm
ONT
- DTW
2 stops8h 25m
Southwest
Thu 7/94:00 pm
DTW
- ONT
2 stops9h 10m
Southwest
Deal found 5/15![Southwest logo]()
$557
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:26 pm
ONT
- DTW
1 stop9h 15m
Alaska Airlines
Tue 7/211:34 pm
DTW
- ONT
2 stops12h 37m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$696
This Southwest deal was found by Cheapflights users on 5/15. 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.
Thu 6/2512:40 pm
ONT
- DTW
2 stops8h 25m
Southwest
Thu 7/165:25 am
DTW
- ONT
2 stops8h 55m
Southwest
Deal found 5/15![Southwest logo]()
$557
This Southwest deal was found by Cheapflights users on 5/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1512:45 pm
ONT
- DTW
2 stops8h 20m
Southwest
Fri 6/195:25 am
DTW
- ONT
2 stops8h 55m
Southwest
Deal found 5/14![Southwest logo]()
$557
Last-minute flights from Ontario to DetroitDiscover last-minute flight deals from Ontario to Detroit. Data last updated May 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Detroit. Data last updated May 18, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 5/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Tue 6/28:20 am
DTW
- ONT
1 stop18h 29m
Frontier
Deal found 5/13![Frontier logo]()
$310
This CheapOair deal was found by Cheapflights users on 5/13. 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 6/16:00 am
ONT
- DTW
1 stop27h 35m
Frontier
Wed 6/38:52 am
DTW
- ONT
1 stop25h 16m
Frontier
Deal found 5/13![Frontier logo]()
$290
This Frontier deal was found by Cheapflights users on 5/13. 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.
Wed 6/310:50 am
ONT
- DTW
1 stop10h 09m
Frontier
Wed 6/108:52 am
DTW
- ONT
1 stop12h 00m
Frontier
Deal found 5/13![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/36:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Sun 6/77:53 pm
DTW
- ONT
2 stops41h 12m
Frontier
Deal found 5/13![Frontier logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/36:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Mon 6/86:05 pm
DTW
- ONT
2 stops43h 00m
Frontier
Deal found 5/13![Frontier logo]()
$279
This Expedia deal was found by Cheapflights users on 5/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:50 am
ONT
- DTW
1 stop22h 45m
Frontier
Sat 6/68:57 am
DTW
- ONT
1 stop25h 11m
Frontier
Deal found 5/13![Frontier logo]()
$280
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:06 pm
ONT
- DTW
1 stop19h 37m
Frontier
Sun 6/78:52 am
DTW
- ONT
1 stop25h 16m
Frontier
Deal found 5/12![Frontier logo]()
$250
This CheapOair deal was found by Cheapflights users on 5/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Sun 6/78:52 am
DTW
- ONT
1 stop25h 16m
Frontier
Deal found 5/14![Frontier logo]()
$300
This Gotogate deal was found by Cheapflights users on 5/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/115:43 pm
ONT
- DTW
1 stop22h 08m
Frontier
Tue 6/168:52 am
DTW
- ONT
1 stop12h 00m
Frontier
Deal found 5/15![Frontier logo]()
$299
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 May 18, 2026.
Search for one-way flight options from Ontario to Detroit. Find affordable one-way fares based on user searches. Data last updated May 18, 2026.
This Super.com deal was found by Cheapflights users on 5/13. 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 6/86:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Deal found 5/13![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Wed 6/36:00 am
ONT
- DTW
2 stops27h 00m
Frontier
Deal found 5/14![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 5/13. 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 6/105:43 pm
ONT
- DTW
1 stop22h 08m
Frontier
Deal found 5/13![Frontier logo]()
$139
This Super.com deal was found by Cheapflights users on 5/13. 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 6/56:00 am
ONT
- DTW
1 stop27h 35m
Frontier
Deal found 5/13![Frontier logo]()
$145
This Trip.com deal was found by Cheapflights users on 5/13. 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 6/166:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Deal found 5/13![Frontier logo]()
$146
This Booking.com deal was found by Cheapflights users on 5/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:43 pm
ONT
- DTW
1 stop21h 23m
Frontier
Deal found 5/16![Frontier logo]()
$147
This Super.com deal was found by Cheapflights users on 5/14. 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.
Tue 6/26:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Deal found 5/14![Frontier logo]()
$150
This Frontier deal was found by Cheapflights users on 5/13. 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 6/410:50 am
ONT
- DTW
1 stop10h 09m
Frontier
Deal found 5/13![Frontier logo]()
$151
This Super.com deal was found by Cheapflights users on 5/14. 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.
Thu 6/116:00 am
ONT
- DTW
1 stop14h 59m
Frontier
Deal found 5/14![Frontier logo]()
$153
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 May 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $250 (Expedia) |
One-way from | $126 (Super.com) |
Popular in | February |
Cheapest in | September |
Average price | $412 |
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 May 18, 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
Quickest round-trip
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Wed 6/17
1:00 pm-12:11 am
1 stop8h 11m
Detroit Metropolitan Wayne County
Mon 6/22
8:25 am-12:10 pm
1 stop6h 45m
$428
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 7/2
12:45 pm-12:05 am
2 stops8h 20m
Detroit Metropolitan Wayne County
Sat 7/4
1:35 pm-8:00 pm
2 stops9h 25m
$490
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Fri 7/24
12:45 pm-12:05 am
2 stops8h 20m
Detroit Metropolitan Wayne County
Tue 7/28
7:05 am-12:40 pm
2 stops8h 35m
$492
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Tue 6/16
8:25 pm-10:00 am
2 stops10h 35m
Detroit Metropolitan Wayne County
Sat 6/20
5:25 pm-10:50 pm
2 stops8h 25m
$537
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Fri 6/26
12:45 pm-12:05 am
2 stops8h 20m
Detroit Metropolitan Wayne County
Thu 7/16
5:25 am-11:20 am
2 stops8h 55m
$543
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 6/25
12:40 pm-12:05 am
2 stops8h 25m
Detroit Metropolitan Wayne County
Thu 7/9
4:00 pm-10:10 pm
2 stops9h 10m
$557
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 6/25
12:40 pm-12:05 am
2 stops8h 25m
Detroit Metropolitan Wayne County
Thu 7/16
5:25 am-11:20 am
2 stops8h 55m
$557
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Mon 6/15
12:45 pm-12:05 am
2 stops8h 20m
Detroit Metropolitan Wayne County
Fri 6/19
5:25 am-11:20 am
2 stops8h 55m
$557
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Thu 5/28
6:00 am-11:37 pm
2 stops14h 37m
Detroit Metropolitan Wayne County
Wed 6/3
6:08 pm-11:58 pm
1 stop8h 50m
$571
OntarioDetroit
ONT - DTW
ONTDTW
Ontario
Tue 8/11
5:00 am-11:45 pm
2 stops15h 45m
Detroit Metropolitan Wayne County
Thu 8/13
10:30 am-8:01 pm
2 stops12h 31m
$621
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 May.
| 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
How far ahead should I book a flight from Ontario to Detroit?
Booking 35 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.
What is the cheapest month to book a flight from Ontario to Detroit?
Currently, June is the cheapest month in which you can book a flight from Ontario to Detroit (average of $128). Flying from Ontario to Detroit in January is currently the most expensive (average of $296). 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 May 18, 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.
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Food
7.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Food
7.0
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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Complete your trip
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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 May 18, 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 May 18, 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 May 18, 2026.
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Check out other popular destinations found by fellow travelers in 2026
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 May 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$177 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$170 | Average$305 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$272 | Average$454 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$277 | Average$496 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$305 | Average$566 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$340 | Average$587 | FlexibilityNo cancel fee | On-time69% |