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

Flights via Denver (DEN) offer the lowest average round-trip price of $198.

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

Chicago (MDW) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

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 57% 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 Phoenix (PHX) have the shortest average one-way travel time: 7h 09m.

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

Chicago (MDW) has the shortest average layover time for this route: 1h 10m.

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

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

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 January 2026, there are 5 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.

$59 Cheap Flights from Detroit to Ontario in 2026

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 $338 to $701. The lowest price recently found on this route was $126.

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Find the cheapest flights from Detroit to Los Angeles

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:21 pm - 11:59 pm

DTW

ONT

9h 38m

1 stop

6:00 am - 11:55 pm

ONT

DTW

14h 55m

1 stop

$126Frontier

Sat, Feb 21 - Sat, Feb 28

5:21 pm - 11:59 pm

DTW

ONT

9h 38m

1 stop

6:00 am - 11:55 pm

ONT

DTW

14h 55m

1 stop

$128Frontier

Sat, Feb 21 - Sat, Feb 28

8:30 am - 9:34 pm

DTW

ONT

16h 04m

1 stop

8:40 am - 11:40 pm

ONT

DTW

12h 00m

1 stop

$140Frontier

Wed, Feb 18 - Wed, Feb 25

5:21 pm - 7:59 am

DTW

ONT

17h 38m

1 stop

6:00 am - 11:55 pm

ONT

DTW

14h 55m

1 stop

$142Frontier

Sat, Feb 21 - Sat, Feb 28

5:21 pm - 11:59 pm

DTW

ONT

9h 38m

1 stop

8:35 am - 11:55 pm

ONT

DTW

12h 20m

1 stop

$148Frontier

Sat, Feb 21 - Tue, Feb 24

5:21 pm - 7:59 am

DTW

ONT

17h 38m

1 stop

6:00 am - 11:55 pm

ONT

DTW

14h 55m

1 stop

$150Frontier

Sat, Feb 21 - Sat, Feb 28

9:01 am - 1:52 pm

DTW

ONT

7h 51m

1 stop

6:00 am - 11:55 pm

ONT

DTW

14h 55m

1 stop

$152Multiple Airlines

Tue, Feb 24 - Sat, Feb 28

8:30 am - 9:34 pm

DTW

ONT

16h 04m

1 stop

8:40 am - 11:55 pm

ONT

DTW

12h 15m

1 stop

$159Frontier

Wed, Feb 25 - Tue, Mar 3

10:45 am - 11:59 pm

DTW

ONT

16h 14m

2 stops

6:00 am - 11:55 pm

ONT

DTW

14h 55m

1 stop

$161Frontier

Sat, Feb 21 - Sat, Feb 28

5:21 pm - 11:59 pm

DTW

ONT

9h 38m

1 stop

2:08 pm - 11:55 pm

ONT

DTW

6h 47m

1 stop

$164Frontier

Sat, Feb 21 - Thu, Feb 26

Frontier flights from Detroit to Ontario

Our best Frontier deals on Detroit to Ontario flight tickets

Frontier

Feb 21

DTW5:21 pmDetroit Metropolitan Wayne County

9h 38m

1 stop

ONT11:59 pmOntario

Feb 28

ONT6:00 amOntario

14h 55m

1 stop

DTW11:55 pmDetroit Metropolitan Wayne County

$126

Frontier

Feb 21

DTW5:21 pmDetroit Metropolitan Wayne County

9h 38m

1 stop

ONT11:59 pmOntario

Feb 28

ONT6:00 amOntario

14h 55m

1 stop

DTW11:55 pmDetroit Metropolitan Wayne County

$128

Frontier

Feb 18

DTW8:30 amDetroit Metropolitan Wayne County

16h 04m

1 stop

ONT9:34 pmOntario

Feb 25

ONT8:40 amOntario

12h 00m

1 stop

DTW11:40 pmDetroit Metropolitan Wayne County

$140

American Airlines flights from Detroit to Ontario

Our best American Airlines deals on Detroit to Ontario flight tickets

American Airlines

Feb 7

DTW6:35 amDetroit Metropolitan Wayne County

8h 28m

1 stop

ONT12:03 pmOntario

Feb 14

ONT11:58 pmOntario

7h 52m

1 stop

DTW10:50 amDetroit Metropolitan Wayne County

$441

American Airlines

Feb 7

DTW11:20 amDetroit Metropolitan Wayne County

10h 25m

1 stop

ONT6:45 pmOntario

Feb 14

ONT9:53 amOntario

11h 38m

2 stops

DTW12:31 amDetroit Metropolitan Wayne County

$446

American Airlines

Feb 7

DTW11:20 amDetroit Metropolitan Wayne County

10h 00m

2 stops

ONT6:20 pmOntario

Feb 14

ONT9:53 amOntario

11h 38m

2 stops

DTW12:31 amDetroit Metropolitan Wayne County

$452

Fly from

Fly to

Route

Depart

Return

Price

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/21

5:21 pm-11:59 pm

1 stop9h 38m

Ontario

Sat 2/28

6:00 am-11:55 pm

1 stop14h 55m

$126

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/21

5:21 pm-11:59 pm

1 stop9h 38m

Ontario

Sat 2/28

6:00 am-11:55 pm

1 stop14h 55m

$128

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 2/18

8:30 am-9:34 pm

1 stop16h 04m

Ontario

Wed 2/25

8:40 am-11:40 pm

1 stop12h 00m

$140

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/21

5:21 pm-7:59 am

1 stop17h 38m

Ontario

Sat 2/28

6:00 am-11:55 pm

1 stop14h 55m

$142

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/21

5:21 pm-11:59 pm

1 stop9h 38m

Ontario

Tue 2/24

8:35 am-11:55 pm

1 stop12h 20m

$148

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/21

5:21 pm-7:59 am

1 stop17h 38m

Ontario

Sat 2/28

6:00 am-11:55 pm

1 stop14h 55m

$150

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 2/24

9:01 am-1:52 pm

1 stop7h 51m

Ontario

Sat 2/28

6:00 am-11:55 pm

1 stop14h 55m

$152

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 2/25

8:30 am-9:34 pm

1 stop16h 04m

Ontario

Tue 3/3

8:40 am-11:55 pm

1 stop12h 15m

$159

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/21

10:45 am-11:59 pm

2 stops16h 14m

Ontario

Sat 2/28

6:00 am-11:55 pm

1 stop14h 55m

$161

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 2/21

5:21 pm-11:59 pm

1 stop9h 38m

Ontario

Thu 2/26

2:08 pm-11:55 pm

1 stop6h 47m

$164

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, September 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 $198. If you aren’t able to travel during the month of September, then book flights to Ontario from Detroit during August instead. Flights to Ontario in August, while not as cheap as those in September, still average around $296.

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 $416 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 $322 on momondo.

Can stopping save me money on Detroit to Ontario flights?

You could potentially save up to 18% on your flight if you consider stops on a Detroit to Ontario flight.

How have Detroit to Ontario flight prices changed over time?

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

Fastest flight time	6h 34m
Direct flights	None

The fastest flight from Detroit to Ontario takes 6h 34m

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

Search flight deals

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 34m, 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 January 2026, there are 5 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 Delta, representing 54% of all bookings. The subsequent popular airline is American Airlines at 46%.

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 $155	Free Cancellation	Rating 5.7 3,058 reviews	Search Frontier flights
United Airlines	PriceFrom $266	Free Cancellation	Rating 7.4 9,194 reviews	Search United Airlines flights
American Airlines	PriceFrom $329	Free Cancellation	Rating 7.2 11,192 reviews	Search American Airlines flights
Delta	PriceFrom $344	Free Cancellation	Rating 7.9 8,110 reviews	Search Delta flights
Southwest	PriceFrom $360	Free Cancellation	Rating 8.0 4,268 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.