Which airport is the most popular layover for flights between Ontario and Detroit?

Chicago (ORD) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Ontario to Detroit?

Denver (DEN) has the shortest average layover time for this route: 1h 12m.

Which layover airport has the shortest travel time from Ontario to Detroit?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 6h 10m.

Which layover airport offers the lowest fares from Ontario to Detroit?

Flights via Denver (DEN) offer the lowest average round-trip price of $452.

What is the cheapest airline that flies from Ontario to Detroit?

Frontier and Delta are the most popular carriers operating from Ontario to Detroit

What airlines fly to Detroit?

Spirit Airlines, Delta and Frontier are the top three most popular airlines that fly to Detroit from Ontario according to our data. Spirit Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Detroit. Keep in mind that there are 6 different airlines that fly to Detroit on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Detroit?

Prices for flights from Ontario Airport to Detroit were last updated today.

How many operators does momondo search for flights from Ontario Airport to Detroit?

The number of operators available for flights from Ontario Airport to Detroit is 6 as of December 2025.

How old do you have to be to fly from Ontario Airport to Detroit?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Detroit.

What documentation or ID do you need to fly to Detroit?

The required travel and health documents for your Detroit trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Detroit. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$75 Cheap Flights from Ontario to Detroit in 2025/26

Q: What is the typical price of a round-trip flight between Ontario and Detroit?

Prices are currently low for flights on this route. Typical prices usually range from $352 to $606. The lowest price recently found on this route was $148.

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Find the cheapest flights from Ontario to Detroit

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 am - 4:19 pm

ONT

DTW

6h 59m1 stop

5:14 pm - 12:20 am

DTW

ONT

10h 06m1 stop

$148Frontier

Fri, Jan 30 - Sun, Feb 1

6:20 am - 4:19 pm

ONT

DTW

6h 59m1 stop

12:05 pm - 11:59 pm

DTW

ONT

14h 54m1 stop

$149Frontier

Sun, Feb 8 - Fri, Feb 20

3:07 pm - 11:59 pm

ONT

DTW

29h 52m2 stops

5:14 pm - 3:07 pm

DTW

ONT

24h 53m1 stop

$152Frontier

Wed, Jan 21 - Mon, Jan 26

7:15 am - 4:19 pm

ONT

DTW

30h 04m1 stop

12:05 pm - 11:59 pm

DTW

ONT

14h 54m1 stop

$156Frontier

Sat, Jan 31 - Sat, Feb 14

8:05 pm - 8:44 pm

ONT

DTW

21h 39m2 stops

12:05 pm - 11:59 pm

DTW

ONT

14h 54m1 stop

$161Frontier

Mon, Feb 2 - Fri, Feb 20

6:00 pm - 6:54 am

ONT

DTW

9h 54m1 stop

5:14 pm - 12:20 am

DTW

ONT

10h 06m1 stop

$167Frontier

Wed, Dec 31 - Mon, Jan 26

6:20 am - 4:19 pm

ONT

DTW

6h 59m1 stop

12:05 pm - 11:59 pm

DTW

ONT

14h 54m1 stop

$170Frontier

Mon, Feb 2 - Fri, Feb 20

6:20 am - 4:19 pm

ONT

DTW

6h 59m1 stop

12:05 pm - 11:59 pm

DTW

ONT

14h 54m1 stop

$179Frontier

Sun, Feb 1 - Sat, Feb 14

6:17 pm - 6:54 am

ONT

DTW

9h 37m1 stop

7:51 am - 3:09 pm

DTW

ONT

10h 18m1 stop

$183Frontier

Tue, Dec 30 - Tue, Jan 6

6:00 pm - 6:54 am

ONT

DTW

9h 54m1 stop

7:51 am - 3:09 pm

DTW

ONT

10h 18m1 stop

$184Frontier

Wed, Dec 24 - Tue, Jan 6

American Airlines flights from Ontario to Detroit

Our best American Airlines deals on Ontario to Detroit flight tickets

American Airlines

Jan 21

ONT6:00 amOntario

7h 32m

1 stop

DTW4:32 pmDetroit Metropolitan Wayne County

Jan 27

DTW5:35 pmDetroit Metropolitan Wayne County

8h 13m

1 stop

ONT10:48 pmOntario

$207

Find similar

American Airlines

Jan 21

ONT9:59 amOntario

9h 36m

2 stops

DTW10:35 pmDetroit Metropolitan Wayne County

Jan 27

DTW7:00 amDetroit Metropolitan Wayne County

10h 18m

1 stop

ONT2:18 pmOntario

$212

Find similar

American Airlines

Jan 21

ONT9:59 amOntario

9h 31m

2 stops

DTW10:30 pmDetroit Metropolitan Wayne County

Jan 27

DTW8:00 amDetroit Metropolitan Wayne County

11h 05m

2 stops

ONT4:05 pmOntario

$217

Find similar

Frontier flights from Ontario to Detroit

Our best Frontier deals on Ontario to Detroit flight tickets

Frontier

Jan 30

ONT6:20 amOntario

6h 59m

1 stop

DTW4:19 pmDetroit Metropolitan Wayne County

Feb 1

DTW5:14 pmDetroit Metropolitan Wayne County

10h 06m

1 stop

ONT12:20 amOntario

$148

Find similar

Frontier

Feb 8

ONT6:20 amOntario

6h 59m

1 stop

DTW4:19 pmDetroit Metropolitan Wayne County

Feb 20

DTW12:05 pmDetroit Metropolitan Wayne County

14h 54m

1 stop

ONT11:59 pmOntario

$149

Find similar

Frontier

Jan 21

ONT3:07 pmOntario

29h 52m

2 stops

DTW11:59 pmDetroit Metropolitan Wayne County

Jan 26

DTW5:14 pmDetroit Metropolitan Wayne County

24h 53m

1 stop

ONT3:07 pmOntario

$152

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Fri 1/30

6:20 am-4:19 pm

1 stop6h 59m

Detroit Metropolitan Wayne County

Sun 2/1

5:14 pm-12:20 am

1 stop10h 06m

$148

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sun 2/8

6:20 am-4:19 pm

1 stop6h 59m

Detroit Metropolitan Wayne County

Fri 2/20

12:05 pm-11:59 pm

1 stop14h 54m

$149

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 1/21

3:07 pm-11:59 pm

2 stops29h 52m

Detroit Metropolitan Wayne County

Mon 1/26

5:14 pm-3:07 pm

1 stop24h 53m

$152

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sat 1/31

7:15 am-4:19 pm

1 stop30h 04m

Detroit Metropolitan Wayne County

Sat 2/14

12:05 pm-11:59 pm

1 stop14h 54m

$156

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 2/2

8:05 pm-8:44 pm

2 stops21h 39m

Detroit Metropolitan Wayne County

Fri 2/20

12:05 pm-11:59 pm

1 stop14h 54m

$161

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 12/31

6:00 pm-6:54 am

1 stop9h 54m

Detroit Metropolitan Wayne County

Mon 1/26

5:14 pm-12:20 am

1 stop10h 06m

$167

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Mon 2/2

6:20 am-4:19 pm

1 stop6h 59m

Detroit Metropolitan Wayne County

Fri 2/20

12:05 pm-11:59 pm

1 stop14h 54m

$170

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Sun 2/1

6:20 am-4:19 pm

1 stop6h 59m

Detroit Metropolitan Wayne County

Sat 2/14

12:05 pm-11:59 pm

1 stop14h 54m

$179

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 12/30

6:17 pm-6:54 am

1 stop9h 37m

Detroit Metropolitan Wayne County

Tue 1/6

7:51 am-3:09 pm

1 stop10h 18m

$183

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 12/24

6:00 pm-6:54 am

1 stop9h 54m

Detroit Metropolitan Wayne County

Tue 1/6

7:51 am-3:09 pm

1 stop10h 18m

$184

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Detroit

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Ontario and Detroit?

What is the cheapest month to fly to Detroit?

The cheapest month to fly to Detroit from Ontario is in September. Flight prices, which tend to average around $241, are often lower during this time because this is during the off-season. If you’re not able to fly to Detroit in September, then March is your next best option. Flight prices from Ontario to Detroit during March average around $352.

What is the cheapest day to depart on your flight to Detroit?

On average, the least expensive day to fly to Detroit from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $344. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Detroit for around $421.

What is the cheapest time of day to depart on your flight to Detroit?

At noon is the cheapest time of day to fly from Ontario to Detroit when you can find flight prices for as low as $336. Flying to Detroit at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $385 on average. Flights to Detroit from Ontario in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Detroit?

You are more likely to see cheaper flights to Detroit from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit for around $468 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit from Ontario for as low as $296 on momondo.

How have Ontario to Detroit flight prices changed over time?

When to book flights from Ontario to Detroit

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Detroit according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Detroit (ONT to DTT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Detroit

Fastest flight time	5h 35m
Direct flights	None

The fastest flight from Ontario to Detroit takes 5h 35m

There are no direct flights from Ontario to Detroit. There are no popular flight routes from Ontario to Detroit.

Search flight deals

How far is Ontario to Detroit by plane?
A flight from Ontario to Detroit will travel around 1947.2 mi. 6h 34m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Detroit?
Prices for flights from Ontario Airport to Detroit were last updated today.
How many operators does momondo search for flights from Ontario Airport to Detroit?
The number of operators available for flights from Ontario Airport to Detroit is 6 as of December 2025.
How old do you have to be to fly from Ontario Airport to Detroit?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Detroit.
What documentation or ID do you need to fly to Detroit?
The required travel and health documents for your Detroit trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Detroit. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Detroit?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Detroit is American Airlines (40% of total bookings). The next most popular airlines are Southwest (18%), Delta (15%), and United Airlines (14%).

Best airlines flying from Ontario to Detroit

Compare and see reviews for airlines that fly from Ontario to Detroit with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $147	Free Cancellation	Rating 6.3 8,161 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $155	Free Cancellation	Rating 5.8 3,092 reviews	Search Frontier flights
Delta	PriceFrom $292	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
American Airlines	PriceFrom $310	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
United Airlines	PriceFrom $362	Free Cancellation	Rating 7.4 9,063 reviews	Search United Airlines flights
Southwest	PriceFrom $394	Free Cancellation	Rating 8.0 4,253 reviews	Search Southwest flights

Port Huron

Roseville

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Detroit?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Detroit. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Detroit with flexible booking policies on momondo?

Flights from Ontario to Detroit with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Detroit?

Once you have performed a search for Ontario to Detroit flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Detroit right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Detroit, momondo offers a useful price alert feature which will track prices for flights to Detroit from Ontario and alert you when they change.