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

Chicago (ORD) has the shortest average layover time for this route: 1h 50m.

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

Flights via Denver (DEN) offer the lowest average round-trip price of $277.

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.

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

Denver (DEN) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

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 35m.

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

Delta, Alaska Airlines, and Southwest are the most popular carriers operating from Ontario to Detroit

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 March 2026.

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.

$94 Cheap Flights from Ontario to Detroit in 2026

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Find the cheapest flights from Ontario to Detroit

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:33 pm - 10:58 am

ONT

DTW

14h 25m

1 stop

10:27 pm - 11:55 pm

DTW

ONT

28h 28m

1 stop

$172Frontier

Thu, Apr 16 - Fri, Apr 17

5:33 pm - 10:58 am

ONT

DTW

14h 25m

1 stop

10:27 pm - 11:55 pm

DTW

ONT

28h 28m

1 stop

$178Frontier

Thu, Apr 16 - Mon, Apr 20

12:59 am - 10:58 am

ONT

DTW

6h 59m

1 stop

10:27 pm - 11:55 pm

DTW

ONT

28h 28m

1 stop

$187Frontier

Thu, May 14 - Sun, May 17

12:59 am - 10:58 am

ONT

DTW

6h 59m

1 stop

10:05 am - 4:38 pm

DTW

ONT

9h 33m

1 stop

$189Frontier

Thu, May 7 - Mon, May 11

10:03 pm - 7:00 am

ONT

DTW

5h 57m

1 stop

7:45 am - 3:57 pm

DTW

ONT

11h 12m

1 stop

$190Frontier

Wed, Apr 1 - Wed, Apr 8

12:59 am - 10:58 am

ONT

DTW

6h 59m

1 stop

10:27 pm - 11:55 pm

DTW

ONT

28h 28m

1 stop

$192Frontier

Thu, Apr 16 - Mon, Apr 27

5:33 pm - 10:58 am

ONT

DTW

14h 25m

1 stop

10:05 am - 4:38 pm

DTW

ONT

9h 33m

1 stop

$197Frontier

Thu, Apr 23 - Mon, May 4

5:33 pm - 9:42 pm

ONT

DTW

25h 09m

1 stop

10:27 pm - 7:31 am

DTW

ONT

12h 04m

1 stop

$200Frontier

Thu, Apr 23 - Thu, Apr 30

5:33 pm - 9:42 pm

ONT

DTW

25h 09m

1 stop

11:53 am - 11:55 pm

DTW

ONT

15h 02m

1 stop

$201Frontier

Thu, Apr 23 - Sun, Apr 26

12:59 am - 8:13 pm

ONT

DTW

16h 14m

2 stops

10:27 pm - 11:55 pm

DTW

ONT

28h 28m

1 stop

$204Multiple Airlines

Tue, Apr 14 - Fri, Apr 17

Frontier flights from Ontario to Detroit

Our best Frontier deals on Ontario to Detroit flight tickets

Frontier

Apr 16

ONT5:33 pmOntario

14h 25m

1 stop

DTW10:58 amDetroit Metropolitan Wayne County

Apr 20

DTW10:27 pmDetroit Metropolitan Wayne County

28h 28m

1 stop

ONT11:55 pmOntario

$178

Frontier

May 7

ONT12:59 amOntario

6h 59m

1 stop

DTW10:58 amDetroit Metropolitan Wayne County

May 11

DTW10:05 amDetroit Metropolitan Wayne County

9h 33m

1 stop

ONT4:38 pmOntario

$189

Frontier

May 7

ONT12:59 amOntario

6h 59m

1 stop

DTW10:58 amDetroit Metropolitan Wayne County

May 11

DTW10:05 amDetroit Metropolitan Wayne County

9h 33m

1 stop

ONT4:38 pmOntario

$190

Southwest flights from Ontario to Detroit

Our best Southwest deals on Ontario to Detroit flight tickets

Southwest

Apr 15

ONT11:55 pmOntario

7h 15m

1 stop

DTW10:10 amDetroit Metropolitan Wayne County

Apr 25

DTW4:05 pmDetroit Metropolitan Wayne County

8h 55m

1 stop

ONT10:00 pmOntario

$277

Southwest

Apr 15

ONT11:55 pmOntario

7h 15m

1 stop

DTW10:10 amDetroit Metropolitan Wayne County

Apr 25

DTW3:40 pmDetroit Metropolitan Wayne County

8h 40m

2 stops

ONT9:20 pmOntario

$282

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 4/16

5:33 pm-10:58 am

1 stop14h 25m

Detroit Metropolitan Wayne County

Fri 4/17

10:27 pm-11:55 pm

1 stop28h 28m

$172

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 4/16

5:33 pm-10:58 am

1 stop14h 25m

Detroit Metropolitan Wayne County

Mon 4/20

10:27 pm-11:55 pm

1 stop28h 28m

$178

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 5/14

12:59 am-10:58 am

1 stop6h 59m

Detroit Metropolitan Wayne County

Sun 5/17

10:27 pm-11:55 pm

1 stop28h 28m

$187

Quickest round-trip

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 5/7

12:59 am-10:58 am

1 stop6h 59m

Detroit Metropolitan Wayne County

Mon 5/11

10:05 am-4:38 pm

1 stop9h 33m

$189

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Wed 4/1

10:03 pm-7:00 am

1 stop5h 57m

Detroit Metropolitan Wayne County

Wed 4/8

7:45 am-3:57 pm

1 stop11h 12m

$190

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 4/16

12:59 am-10:58 am

1 stop6h 59m

Detroit Metropolitan Wayne County

Mon 4/27

10:27 pm-11:55 pm

1 stop28h 28m

$192

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 4/23

5:33 pm-10:58 am

1 stop14h 25m

Detroit Metropolitan Wayne County

Mon 5/4

10:05 am-4:38 pm

1 stop9h 33m

$197

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 4/23

5:33 pm-9:42 pm

1 stop25h 09m

Detroit Metropolitan Wayne County

Thu 4/30

10:27 pm-7:31 am

1 stop12h 04m

$200

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Thu 4/23

5:33 pm-9:42 pm

1 stop25h 09m

Detroit Metropolitan Wayne County

Sun 4/26

11:53 am-11:55 pm

1 stop15h 02m

$201

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

Tue 4/14

12:59 am-8:13 pm

2 stops16h 14m

Detroit Metropolitan Wayne County

Fri 4/17

10:27 pm-11:55 pm

1 stop28h 28m

$204

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 cheapest month to fly to Detroit?

The cheapest month to fly to Detroit from Ontario is in March. Flight prices, which tend to average around $184, are often lower during this time because this is during the off-season. If you’re not able to fly to Detroit in March, then September is your next best option. Flight prices from Ontario to Detroit during September average around $241.

How have Ontario to Detroit flight prices changed over time?

As of March 2026, prices for Ontario to Detroit flights are approximately 44% more expensive when compared to flights at the same time last year.

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	6h 31m
Direct flights	None

The fastest flight from Ontario to Detroit takes 6h 31m

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 31m 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 March 2026.
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 Southwest (29% of total bookings). The next most popular airlines are American Airlines (28%), Delta (19%), and Frontier (13%).

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 $128	Free Cancellation	Rating 6.3 8,513 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $170	Free Cancellation	Rating 5.7 3,033 reviews	Search Frontier flights
American Airlines	PriceFrom $272	Free Cancellation	Rating 7.1 11,414 reviews	Search American Airlines flights
Delta	PriceFrom $277	Free Cancellation	Rating 7.9 8,276 reviews	Search Delta flights
United Airlines	PriceFrom $321	Free Cancellation	Rating 7.4 9,409 reviews	Search United Airlines flights
Southwest	PriceFrom $338	Free Cancellation	Rating 8.0 4,317 reviews	Search Southwest flights

Roseville

Port Huron

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.