How long is the flight from Ontario to Detroit?

Airlines like Frontier fly from Ontario to Detroit in about 6h 47m. The time it takes to get you to your destination can typically vary by up to . Ontario and Detroit are separated by a distance of 1929 mi.

What are the cheapest airlines flying from Ontario to Detroit round-trip?

Flying on Spirit Airlines is currently your cheapest option to Detroit, with prices starting at $128. Additional round-trip tickets that might be worth considering are offered by Frontier and American Airlines, with the lowest prices starting at $157 and $272, respectively. These flights start at 70% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Ontario to Detroit one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $82. Delta flights start at $146 while deals on Southwest start at $148 one-way.

In terms of precipitation, rainfall in Detroit ranges from 1.8 - 3.1 inches per month. August is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Detroit when rainfall is around 1.8 in.

If weather is an important factor for your trip to Detroit, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What are the most popular airlines that fly from Ontario to Detroit?

Consider Frontier, American Airlines or Delta when booking your flight. These represent the most popular airlines when flying from Ontario to Detroit.

What is the cheapest time of day to fly from ONT to DTT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Detroit as you normally would.

Most accurate provider : When it comes to deals on Ontario-Detroit flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Detroit flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Can I find deals for flights from Ontario to Detroit that include hotel bookings?

Yes. In addition to deals on Ontario to Detroit flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Detroit?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Detroit.

Can I find deals for business class flights from Ontario to Detroit?

Yes. Cheapflights offers flight deals from Ontario to Detroit by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$62+ Flights from Ontario to Detroit

Q: 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 $531 and $917 in February. The cheapest round-trip price found within the last 3 days was $135 on Frontier (Feb 11-Feb 16).

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Cheap flight deals from Ontario to Detroit

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$135 (Kiwi.com)
One-way from	$62 (Trip.com)
Popular in	April
Cheapest in	September
Average price	$569

Provider with most accurate pricing for Ontario-Detroit (DTT) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-Detroit (DTT) flights.

Search Deals

From Ontario to Detroit (DTT)

Search Deals

One-way flight from Ontario to Detroit (DTT)

Search Deals

Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Find flight deals from Ontario to Detroit

Cheapest flights from Ontario to Detroit
Explore the most affordable flight options available from Ontario to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

Fri 2/66:20 amONT - DTW

1 stop6h 59mFrontier

Sun 2/85:14 pmDTW - ONT

1 stop10h 06mFrontier

Deal found 1/6

$134

Thu 2/192:08 pmONT - DTW

1 stop6h 47mFrontier

Mon 2/236:52 pmDTW - ONT

1 stop8h 07mFrontier

Deal found 1/7

$138

Wed 2/118:10 amONT - DTW

1 stop12h 45mFrontier

Tue 2/1710:32 amDTW - ONT

1 stop14h 02mFrontier

Deal found 1/7

$144

Sat 2/146:00 amONT - DTW

1 stop14h 55mFrontier

Thu 2/197:15 amDTW - ONT

1 stop10h 14mFrontier

Deal found 1/6

$145

Sat 3/146:39 pmONT - DTW

1 stop12h 31mFrontier

Sat 3/2111:54 amDTW - ONT

1 stop15h 05mFrontier

Deal found 1/8

$150

Wed 3/186:15 amONT - DTW

1 stop25h 44mFrontier

Tue 3/2411:54 amDTW - ONT

1 stop15h 05mFrontier

Deal found 1/7

$151

Fri 2/68:48 pmONT - DTW

2 stops21h 14mMultiple Airlines

Sun 2/85:14 pmDTW - ONT

1 stop10h 06mMultiple Airlines

Deal found 1/7

$161

Tue 2/33:07 pmONT - DTW

2 stops26h 37mFrontier

Tue 2/108:30 amDTW - ONT

1 stop16h 04mFrontier

Deal found 1/6

$162

Wed 2/118:10 amONT - DTW

1 stop12h 45mFrontier

Thu 2/127:15 amDTW - ONT

1 stop10h 14mFrontier

Deal found 1/6

$165

Fri 1/308:48 pmONT - DTW

2 stops22h 16mFrontier

Mon 2/25:14 pmDTW - ONT

1 stop10h 06mFrontier

Deal found 1/6

$167

Best flights from Ontario to Detroit
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 January 8, 2026.

Thu 2/192:08 pmONT - DTW

1 stop6h 47mFrontier

Mon 2/236:52 pmDTW - ONT

1 stop8h 07mFrontier

Deal found 1/7

$138

Thu 1/222:06 pmONT - DTW

1 stop27h 17mMultiple Airlines

Sat 1/249:01 amDTW - ONT

1 stop7h 33mMultiple Airlines

Deal found 1/6

$255

Tue 2/311:15 amONT - DTW

2 stops7h 40mSouthwest

Tue 2/106:50 amDTW - ONT

2 stops12h 15mSouthwest

Deal found 1/6

$272

Thu 2/54:03 pmONT - DTW

1 stop21h 16mAlaska Airlines

Sat 2/75:15 pmDTW - ONT

1 stop20h 44mAlaska Airlines

Deal found 1/8

$277

Wed 3/186:15 amONT - DTW

1 stop25h 44mFrontier

Tue 3/2411:54 amDTW - ONT

1 stop15h 05mFrontier

Deal found 1/7

$151

Sat 1/315:05 amONT - DTW

2 stops8h 58mUnited Airlines

Tue 2/32:19 pmDTW - ONT

2 stops11h 34mUnited Airlines

Deal found 1/6

$318

Tue 2/178:35 amONT - DTW

1 stop12h 20mFrontier

Sun 2/227:15 amDTW - ONT

1 stop10h 14mFrontier

Deal found 1/8

$191

Thu 3/56:05 amONT - DTW

1 stop14h 50mFrontier

Sat 3/711:54 amDTW - ONT

1 stop15h 05mFrontier

Deal found 1/6

$219

Thu 1/294:03 pmONT - DTW

1 stop21h 16mAlaska Airlines

Tue 2/35:15 pmDTW - ONT

2 stops29h 01mAlaska Airlines

Deal found 1/7

$295

Thu 1/299:00 amONT - DTW

2 stops9h 55mSouthwest

Tue 2/31:40 pmDTW - ONT

2 stops10h 05mSouthwest

Deal found 1/7

$302

Tue 2/311:53 amONT - DTW

1 stop25h 26mAlaska Airlines

Tue 2/105:15 pmDTW - ONT

1 stop24h 53mAlaska Airlines

Deal found 1/7

$306

Sun 2/152:08 pmONT - DTW

1 stop6h 47mFrontier

Fri 2/2011:59 amDTW - ONT

1 stop15h 00mFrontier

Deal found 1/8

$294

Last-minute flights from Ontario to Detroit
Discover last-minute flight deals from Ontario to Detroit. Data last updated January 8, 2026 and is based on user searches.

Thu 1/292:06 pmONT - DTW

1 stop27h 17mFrontier

Mon 2/25:14 pmDTW - ONT

1 stop10h 06mFrontier

Deal found 1/7

$169

Fri 1/308:48 pmONT - DTW

2 stops22h 16mFrontier

Mon 2/25:14 pmDTW - ONT

1 stop10h 06mFrontier

Deal found 1/6

$167

Tue 2/33:07 pmONT - DTW

2 stops26h 37mFrontier

Tue 2/108:30 amDTW - ONT

1 stop16h 04mFrontier

Deal found 1/6

$162

Fri 2/66:20 amONT - DTW

1 stop6h 59mFrontier

Sun 2/85:14 pmDTW - ONT

1 stop10h 06mFrontier

Deal found 1/6

$134

Fri 2/68:48 pmONT - DTW

2 stops21h 14mMultiple Airlines

Sun 2/85:14 pmDTW - ONT

1 stop10h 06mMultiple Airlines

Deal found 1/7

$161

Wed 2/118:10 amONT - DTW

1 stop12h 45mFrontier

Tue 2/1710:32 amDTW - ONT

1 stop14h 02mFrontier

Deal found 1/7

$144

Wed 2/118:10 amONT - DTW

1 stop12h 45mFrontier

Thu 2/127:15 amDTW - ONT

1 stop10h 14mFrontier

Deal found 1/6

$165

Sat 2/146:00 amONT - DTW

1 stop14h 55mFrontier

Thu 2/197:15 amDTW - ONT

1 stop10h 14mFrontier

Deal found 1/6

$145

Thu 2/192:08 pmONT - DTW

1 stop6h 47mFrontier

Mon 2/236:52 pmDTW - ONT

1 stop8h 07mFrontier

Deal found 1/7

$138

One-way flights from Ontario to Detroit
Search for one-way flight options from Ontario to Detroit. Find affordable one-way fares based on user searches. Data last updated January 8, 2026.

Wed 2/118:10 amONT - DTW

1 stop12h 45mFrontier

Deal found 1/6

$62

Sat 1/317:15 amONT - DTW

1 stop30h 04mFrontier

Deal found 1/6

$72

Sat 2/146:00 amONT - DTW

1 stop14h 55mFrontier

Deal found 1/7

$79

Tue 2/108:36 amONT - DTW

1 stop12h 19mFrontier

Deal found 1/6

$81

Tue 3/106:15 amONT - DTW

1 stop25h 44mFrontier

Deal found 1/6

$82

Mon 1/266:20 amONT - DTW

1 stop6h 59mFrontier

Deal found 1/7

$86

Sun 2/156:10 amONT - DTW

1 stop14h 45mFrontier

Deal found 1/7

$89

Thu 2/192:08 pmONT - DTW

1 stop6h 47mFrontier

Deal found 1/6

$90

Thu 2/122:08 pmONT - DTW

1 stop6h 47mFrontier

Deal found 1/6

$91

Tue 2/178:35 amONT - DTW

1 stop12h 20mFrontier

Deal found 1/7

$92

Wed 2/47:15 amONT - DTW

2 stops35h 53mMultiple Airlines

Deal found 1/7

$100

Fly from

Fly to

Route

Depart

Return

Price

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 2/19

2:08 pm-11:55 pm

1 stop6h 47m

Detroit Metropolitan Wayne County

Mon 2/23

6:52 pm-11:59 pm

1 stop8h 07m

$138

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 3/18

6:15 am-10:59 am

1 stop25h 44m

Detroit Metropolitan Wayne County

Tue 3/24

11:54 am-11:59 pm

1 stop15h 05m

$151

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 2/17

8:35 am-11:55 pm

1 stop12h 20m

Detroit Metropolitan Wayne County

Sun 2/22

7:15 am-2:29 pm

1 stop10h 14m

$191

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 3/5

6:05 am-11:55 pm

1 stop14h 50m

Detroit Metropolitan Wayne County

Sat 3/7

11:54 am-11:59 pm

1 stop15h 05m

$219

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 1/22

2:06 pm-8:23 pm

1 stop27h 17m

Detroit Metropolitan Wayne County

Sat 1/24

9:01 am-1:34 pm

1 stop7h 33m

$255

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 2/3

11:15 am-9:55 pm

2 stops7h 40m

Detroit Metropolitan Wayne County

Tue 2/10

6:50 am-4:05 pm

2 stops12h 15m

$272

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 2/5

4:03 pm-4:19 pm

1 stop21h 16m

Detroit Metropolitan Wayne County

Sat 2/7

5:15 pm-10:59 am

1 stop20h 44m

$277

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sun 2/15

2:08 pm-11:55 pm

1 stop6h 47m

Detroit Metropolitan Wayne County

Fri 2/20

11:59 am-11:59 pm

1 stop15h 00m

$294

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 1/29

4:03 pm-4:19 pm

1 stop21h 16m

Detroit Metropolitan Wayne County

Tue 2/3

5:15 pm-7:16 pm

2 stops29h 01m

$295

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 1/29

9:00 am-9:55 pm

2 stops9h 55m

Detroit Metropolitan Wayne County

Tue 2/3

1:40 pm-8:45 pm

2 stops10h 05m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 23 results

Compare providers for flights from Ontario to Detroit

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Detroit in January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ontario-Detroit flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Detroit flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Detroit flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Detroit

What is the cheapest month to book a flight from Ontario to Detroit?

Currently, February is the cheapest month in which you can book a flight from Ontario to Detroit (average of $99). Flying from Ontario to Detroit in January is currently the most expensive (average of $173). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Ontario to Detroit?

Reviews of airlines servicing Detroit

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Ontario to Detroit. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Southwest

8.0

Very good

4,250 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Delta

7.9

Good

8,025 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

United Airlines

7.4

Good

9,139 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

American Airlines

7.2

Good

11,095 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Frontier

5.7

Fair

3,062 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

How long is the flight from Ontario to Detroit?
Airlines like Frontier fly from Ontario to Detroit in about 6h 47m. The time it takes to get you to your destination can typically vary by up to . Ontario and Detroit are separated by a distance of 1929 mi.
What are the cheapest airlines flying from Ontario to Detroit round-trip?
Flying on Spirit Airlines is currently your cheapest option to Detroit, with prices starting at $128. Additional round-trip tickets that might be worth considering are offered by Frontier and American Airlines, with the lowest prices starting at $157 and $272, respectively. These flights start at 70% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Ontario to Detroit one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $82. Delta flights start at $146 while deals on Southwest start at $148 one-way.
Can I find deals for flights from Ontario to Detroit that include hotel bookings?
Yes. In addition to deals on Ontario to Detroit flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Detroit?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Detroit.
Can I find deals for business class flights from Ontario to Detroit?
Yes. Cheapflights offers flight deals from Ontario to Detroit by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ontario to Detroit?
Currently, February is the cheapest month in which you can book a flight from Ontario to Detroit (average of $99). Flying from Ontario to Detroit in January is currently the most expensive (average of $173). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Roseville

Port Huron

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Top 6 airlines flying from Ontario to Detroit

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$147	Average$177	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$157	Average$292	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$272	Average$465	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$292	Average$439	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$352	Average$477	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$352	Average$534	FlexibilityNo cancel fee	On-time69%

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$62+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Detroit with Cheapflights

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Cheap flight deals from Ontario to Detroit

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Most trusted provider

Round-trip from

One-way from

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Find flight deals from Ontario to Detroit

Cheapest flights from Ontario to DetroitExplore the most affordable flight options available from Ontario to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

Explore the most affordable flight options available from Ontario to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Detroit that are best for you.

Compare providers for flights from Ontario to Detroit

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Detroit in January.

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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Detroit

What is the cheapest month to book a flight from Ontario to Detroit?

How much does it cost to fly round-trip from Ontario to Detroit?

Reviews of airlines servicing Detroit

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Ontario to Detroit. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

How long is the flight from Ontario to Detroit?

What are the cheapest airlines flying from Ontario to Detroit round-trip?

What are the cheapest airlines to fly from Ontario to Detroit one-way?

Can I find deals for flights from Ontario to Detroit that include hotel bookings?

How can I find direct flights from Ontario to Detroit?

Can I find deals for business class flights from Ontario to Detroit?

What is the cheapest month to book a flight from Ontario to Detroit?

Traveling to a place near Detroit?

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Alternative routes for Ontario to Detroit

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Top 6 airlines flying from Ontario to Detroit

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Cheapest flights from Ontario to Detroit
Explore the most affordable flight options available from Ontario to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.