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

Flights via Dallas (DFW) offer the lowest average round-trip price of $240.

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

Phoenix (PHX) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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

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

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

Phoenix (PHX) has the shortest average layover time for this route: 1h 00m.

What airlines fly to Ontario?

Spirit Airlines, Delta and Frontier are the top three most popular airlines that fly to Ontario from Detroit according to our data. Spirit Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

Flights connecting via Chicago (MDW) have the shortest average one-way travel time: 6h 15m.

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

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

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

As of August 2025, there are 6 operators available to choose from for flights from Detroit to Ontario Airport.

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

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 Detroit to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport 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 Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$78 Cheap Flights from Detroit to Ontario in 2025

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

Prices are currently low for flights on this route. Typical prices usually range from $296 to $501. The lowest price recently found on this route was $148.

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Find the cheapest flights from Detroit to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

6:10 am - 7:53 amDTW-ONT

28h 43m1 stop

8:59 pm - 10:54 amONT-DTW

10h 55m1 stop

$148Frontier

Find Deal

Thu, Sep 18 - Wed, Sep 24

8:00 am - 7:54 pmDTW-ONT

14h 54m1 stop

8:59 pm - 11:58 pmONT-DTW

23h 59m1 stop

$149Frontier

Find Deal

Tue, Sep 9 - Fri, Sep 19

6:00 am - 9:35 amDTW-ONT

6h 35m1 stop

8:24 am - 6:27 pmONT-DTW

7h 03m1 stop

$160Frontier

Find Deal

Fri, Oct 24 - Fri, Oct 31

11:49 am - 7:54 pmDTW-ONT

11h 05m1 stop

7:15 pm - 9:47 amONT-DTW

11h 32m1 stop

$162Frontier

Find Deal

Thu, Sep 4 - Sun, Sep 7

5:14 pm - 11:50 pmDTW-ONT

9h 36m1 stop

6:53 am - 4:19 pmONT-DTW

6h 26m1 stop

$165Frontier

Find Deal

Fri, Nov 14 - Mon, Nov 17

5:14 pm - 11:50 pmDTW-ONT

9h 36m1 stop

7:47 am - 6:27 pmONT-DTW

31h 40m1 stop

$169Frontier

Find Deal

Fri, Nov 14 - Sun, Nov 16

8:00 am - 11:50 pmDTW-ONT

18h 50m1 stop

3:43 pm - 12:46 amONT-DTW

6h 03m1 stop

$170Frontier

Find Deal

Wed, Sep 3 - Thu, Sep 18

5:14 pm - 11:50 pmDTW-ONT

9h 36m1 stop

7:47 am - 6:27 pmONT-DTW

31h 40m1 stop

$172Frontier

Find Deal

Fri, Nov 14 - Sun, Nov 16

8:00 am - 7:54 pmDTW-ONT

14h 54m1 stop

8:00 am - 6:13 pmONT-DTW

31h 13m2 stops

$212

Find Deal

Sat, Oct 4 - Tue, Oct 14

9:19 pm - 11:33 amDTW-ONT

17h 14m2 stops

10:28 pm - 5:26 amONT-DTW

27h 58m1 stop

$214

Find Deal

Wed, Sep 17 - Sun, Sep 21

Frontier flights from Detroit to Ontario

Our best Frontier deals on Detroit to Ontario flight tickets

Frontier

Sep 18

DTW6:10 amDetroit Metropolitan Wayne County

28h 43m

1 stop

ONT7:53 amOntario

Sep 24

ONT8:59 pmOntario

10h 55m

1 stop

DTW10:54 amDetroit Metropolitan Wayne County

$148

Find similar

Frontier

Sep 9

DTW8:00 amDetroit Metropolitan Wayne County

14h 54m

1 stop

ONT7:54 pmOntario

Sep 19

ONT8:59 pmOntario

23h 59m

1 stop

DTW11:58 pmDetroit Metropolitan Wayne County

$149

Find similar

Frontier

Oct 24

DTW6:00 amDetroit Metropolitan Wayne County

6h 35m

1 stop

ONT9:35 amOntario

Oct 31

ONT8:24 amOntario

7h 03m

1 stop

DTW6:27 pmDetroit Metropolitan Wayne County

$160

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 9/18

6:10 am-7:53 am

1 stop28h 43m

Ontario

Wed 9/24

8:59 pm-10:54 am

1 stop10h 55m

$148

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 9/9

8:00 am-7:54 pm

1 stop14h 54m

Ontario

Fri 9/19

8:59 pm-11:58 pm

1 stop23h 59m

$149

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 10/24

6:00 am-9:35 am

1 stop6h 35m

Ontario

Fri 10/31

8:24 am-6:27 pm

1 stop7h 03m

$160

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 9/4

11:49 am-7:54 pm

1 stop11h 05m

Ontario

Sun 9/7

7:15 pm-9:47 am

1 stop11h 32m

$162

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 11/14

5:14 pm-11:50 pm

1 stop9h 36m

Ontario

Mon 11/17

6:53 am-4:19 pm

1 stop6h 26m

$165

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 11/14

5:14 pm-11:50 pm

1 stop9h 36m

Ontario

Sun 11/16

7:47 am-6:27 pm

1 stop31h 40m

$169

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 9/3

8:00 am-11:50 pm

1 stop18h 50m

Ontario

Thu 9/18

3:43 pm-12:46 am

1 stop6h 03m

$170

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Fri 11/14

5:14 pm-11:50 pm

1 stop9h 36m

Ontario

Sun 11/16

7:47 am-6:27 pm

1 stop31h 40m

$172

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 10/4

8:00 am-7:54 pm

1 stop14h 54m

Ontario

Tue 10/14

8:00 am-6:13 pm

2 stops31h 13m

$212

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 9/17

9:19 pm-11:33 am

2 stops17h 14m

Ontario

Sun 9/21

10:28 pm-5:26 am

1 stop27h 58m

$214

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 Detroit to Ontario

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 Detroit and Ontario?

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from Detroit to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $281. If you aren’t able to travel during the month of February, then book flights to Ontario from Detroit during August instead. Flights to Ontario in August, while not as cheap as those in February, still average around $296.

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

The cheapest day to depart on your flight to Ontario is on a Sunday when prices can be found for as low as $248. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Detroit to Ontario for around $406.

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

In the evening is the cheapest time of day to fly from Detroit to Ontario when you can find flight prices for as low as $297. Flying to Ontario in the evening 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 afternoon when prices are $469 on average. Flights to Ontario from Detroit in the afternoon 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 Ontario?

You are more likely to see cheaper flights to Ontario from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Detroit for as low as $301 on momondo.

When to book flights from Detroit to Ontario

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

Estimated round-trip price

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

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

Best Price Found	$78
Fastest flight time	6h 35m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from Detroit in the past 72 hours is $78. The best round-trip flight deal from Detroit to Ontario found on momondo in the last 72 hours is $148.

The fastest flight from Detroit to Ontario takes 6h 35m

There are no direct flights from Detroit to Ontario. Popular non-direct route for this connection is Detroit Metropolitan Wayne County Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

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How far is Detroit to Ontario by plane?
The straight-line distance from Detroit to Ontario is 1947.2 mi. Flights usually cover this in 6h 35m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Detroit to Ontario Airport?
Prices for flights from Detroit to Ontario Airport were last updated today.
How many operators does momondo search for flights from Detroit to Ontario Airport?
As of August 2025, there are 6 operators available to choose from for flights from Detroit to Ontario Airport.
How old do you have to be to fly from Detroit to Ontario Airport?
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 Detroit to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport 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 Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Detroit to Ontario?
momondo data reveals that the most frequently booked airline on the route from Detroit to Ontario is American Airlines, representing 30% of all bookings. The subsequent popular airlines are Delta at 27%, Frontier at 22%, and Southwest at 22%.

Best airlines flying from Detroit to Ontario

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $154	Free Cancellation	Rating 5.8 3,212 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $177	Free Cancellation	Rating 6.3 8,038 reviews	Search Spirit Airlines flights
United Airlines	PriceFrom $329	Free Cancellation	Rating 7.4 8,925 reviews	Search United Airlines flights
Delta	PriceFrom $344	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $352	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $390	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Detroit to Ontario for you.

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

Flights from Detroit to Ontario 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 Detroit to Ontario?

Once all potential Detroit to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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