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

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

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

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 6h 48m.

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

Phoenix (PHX) was the most common stop: 35% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Ontario?

Delta, Frontier and Southwest are the top three most popular airlines that fly to Ontario from Detroit according to our data. Delta is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 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 connection time from Detroit to Ontario?

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

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

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

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 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.

$128 Cheap Flights from Detroit to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Detroit to Los Angeles

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:29 pm - 7:12 amDTW Detroit Metropolitan Wayne County-ONT Ontario

11h 43m1 stop Dallas/Fort Worth

10:48 am - 9:03 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 15m1 stop Dallas/Fort Worth

$246Frontier

Tue, Oct 20 - Wed, Oct 28

10:37 am - 6:16 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

10h 39m1 stop Dallas/Fort Worth

7:46 pm - 8:23 pmONT Ontario-DTW Detroit Metropolitan Wayne County

21h 37m1 stop Dallas/Fort Worth

$248Frontier

Wed, Sep 16 - Mon, Sep 21

7:05 am - 1:40 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

9h 35m1 stop Denver Intl

6:02 am - 5:01 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 59m1 stop Seattle/Tacoma Intl

$385Multiple Airlines

Wed, Oct 28 - Sat, Oct 31

8:10 am - 12:03 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

6h 53m1 stop Phoenix Sky Harbor Intl

7:11 pm - 9:47 amONT Ontario-DTW Detroit Metropolitan Wayne County

11h 36m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$413American Airlines

Sat, Sep 5 - Thu, Sep 10

11:43 am - 6:15 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

9h 32m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

7:11 pm - 9:47 amONT Ontario-DTW Detroit Metropolitan Wayne County

11h 36m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$418American Airlines

Sat, Sep 5 - Thu, Sep 10

10:40 am - 3:00 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

7h 20m1 stop Las Vegas Harry Reid Intl

8:05 am - 6:40 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 35m1 stop Las Vegas Harry Reid Intl

$425Southwest

Fri, Feb 5 - Mon, Feb 8

5:45 am - 12:15 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

9h 30m2 stops Denver Intl Oakland

8:05 am - 6:40 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 35m1 stop Las Vegas Harry Reid Intl

$430Southwest

Fri, Feb 5 - Mon, Feb 8

6:00 am - 2:08 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

11h 08m1 stop Seattle/Tacoma Intl

1:04 pm - 11:59 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 55m1 stop Salt Lake City

$431Delta

Sat, Sep 5 - Tue, Sep 8

6:00 am - 10:42 amDTW Detroit Metropolitan Wayne County-ONT Ontario

7h 42m1 stop Atlanta Hartsfield-Jackson

12:17 pm - 10:17 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 00m1 stop Atlanta Hartsfield-Jackson

$431Delta

Sun, Sep 6 - Sat, Sep 19

7:08 am - 10:30 amDTW Detroit Metropolitan Wayne County-ONT Ontario

6h 22m1 stop Denver Intl

10:39 pm - 11:56 pmONT Ontario-DTW Detroit Metropolitan Wayne County

22h 17m1 stop New York John F Kennedy Intl

$461Multiple Airlines

Tue, Sep 15 - Tue, Sep 22

Cheap last minute flights

Enter your travel dates to find the best prices.

1:19 pm - 11:50 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

13h 31m1 stop Denver Intl

3:40 pm - 6:20 amONT Ontario-DTW Detroit Metropolitan Wayne County

11h 40m1 stop Las Vegas Harry Reid Intl

$402Frontier

Sat, Aug 15 - Sat, Aug 22

1:19 pm - 11:50 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

13h 31m1 stop Denver Intl

10:49 am - 1:13 amONT Ontario-DTW Detroit Metropolitan Wayne County

11h 24m1 stop Denver Intl

$402Frontier

Fri, Aug 14 - Fri, Aug 21

9:06 am - 7:32 amDTW Detroit Metropolitan Wayne County-ONT Ontario

25h 26m1 stop Houston George Bush Intcntl

7:12 am - 5:22 amONT Ontario-DTW Detroit Metropolitan Wayne County

19h 10m2 stops Portland Seattle/Tacoma Intl

$699Multiple Airlines

Sat, Aug 15 - Sat, Aug 29

7:53 am - 6:15 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

13h 22m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

6:15 am - 9:33 pmONT Ontario-DTW Detroit Metropolitan Wayne County

12h 18m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$783American Airlines

Sat, Aug 15 - Sat, Aug 29

7:53 am - 6:15 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

13h 22m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

6:15 am - 10:58 pmONT Ontario-DTW Detroit Metropolitan Wayne County

13h 43m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$894American Airlines

Sat, Aug 15 - Tue, Aug 18

5:20 am - 10:42 amDTW Detroit Metropolitan Wayne County-ONT Ontario

8h 22m1 stop Atlanta Hartsfield-Jackson

10:00 pm - 10:10 amONT Ontario-DTW Detroit Metropolitan Wayne County

9h 10m1 stop Atlanta Hartsfield-Jackson

$914Delta

Sat, Aug 15 - Mon, Aug 24

12:20 pm - 6:30 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

9h 10m1 stop Atlanta Hartsfield-Jackson

12:00 pm - 10:38 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 38m1 stop Atlanta Hartsfield-Jackson

$914Delta

Sat, Aug 15 - Sat, Aug 22

5:59 pm - 10:35 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

7h 36m1 stop Chicago O'Hare Intl

6:08 am - 6:06 pmONT Ontario-DTW Detroit Metropolitan Wayne County

8h 58m1 stop San Francisco

$914United Airlines

Sat, Aug 15 - Fri, Aug 28

3:33 pm - 8:53 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

8h 20m1 stop Denver Intl

1:18 pm - 10:38 pmONT Ontario-DTW Detroit Metropolitan Wayne County

6h 20m1 stop Denver Intl

$914United Airlines

Sat, Aug 15 - Tue, Aug 25

7:01 am - 1:09 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

9h 08m1 stop Seattle/Tacoma Intl

10:49 am - 11:59 pmONT Ontario-DTW Detroit Metropolitan Wayne County

10h 10m1 stop Denver Intl

$947Multiple Airlines

Fri, Aug 14 - Mon, Aug 17

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Frontier flights from Detroit to Ontario

Our best Frontier deals on Detroit to Ontario flight tickets

Frontier

Oct 20

DTW10:29 pmDetroit Metropolitan Wayne County

11h 43m

1 stop

ONT7:12 amOntario

Oct 28

ONT10:48 amOntario

7h 15m

1 stop

DTW9:03 pmDetroit Metropolitan Wayne County

$246

Frontier

Sep 16

DTW10:37 amDetroit Metropolitan Wayne County

10h 39m

1 stop

ONT6:16 pmOntario

Sep 21

ONT7:46 pmOntario

21h 37m

1 stop

DTW8:23 pmDetroit Metropolitan Wayne County

$248

Frontier

Oct 19

DTW10:29 pmDetroit Metropolitan Wayne County

11h 43m

1 stop

ONT7:12 amOntario

Oct 21

ONT8:07 amOntario

10h 27m

1 stop

DTW9:34 pmDetroit Metropolitan Wayne County

$249

Delta flights from Detroit to Ontario

Our best Delta deals on Detroit to Ontario flight tickets

Delta

Aug 24

DTW8:15 pmDetroit Metropolitan Wayne County

6h 19m

1 stop

ONT11:34 pmOntario

Sep 1

ONT7:05 amOntario

7h 14m

1 stop

DTW5:19 pmDetroit Metropolitan Wayne County

$567

Delta

Aug 21

DTW8:15 pmDetroit Metropolitan Wayne County

6h 19m

1 stop

ONT11:34 pmOntario

Aug 28

ONT12:00 pmOntario

8h 46m

1 stop

DTW11:46 pmDetroit Metropolitan Wayne County

$619

Delta

Aug 24

DTW8:15 pmDetroit Metropolitan Wayne County

6h 19m

1 stop

ONT11:34 pmOntario

Aug 30

ONT1:06 pmOntario

7h 53m

1 stop

DTW11:59 pmDetroit Metropolitan Wayne County

$662

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Tue 10/20

10:29 pm-7:12 am

1 stop11h 43m

Ontario

Wed 10/28

10:48 am-9:03 pm

1 stop7h 15m

$246

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Wed 9/16

10:37 am-6:16 pm

1 stop10h 39m

Ontario

Mon 9/21

7:46 pm-8:23 pm

1 stop21h 37m

$248

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Wed 10/28

7:05 am-1:40 pm

1 stop9h 35m

Ontario

Sat 10/31

6:02 am-5:01 pm

1 stop7h 59m

$385

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Sat 9/5

8:10 am-12:03 pm

1 stop6h 53m

Ontario

Thu 9/10

7:11 pm-9:47 am

2 stops11h 36m

$413

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Sat 9/5

11:43 am-6:15 pm

2 stops9h 32m

Ontario

Thu 9/10

7:11 pm-9:47 am

2 stops11h 36m

$418

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Fri 2/5

10:40 am-3:00 pm

1 stop7h 20m

Ontario

Mon 2/8

8:05 am-6:40 pm

1 stop7h 35m

$425

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Fri 2/5

5:45 am-12:15 pm

2 stops9h 30m

Ontario

Mon 2/8

8:05 am-6:40 pm

1 stop7h 35m

$430

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Sat 9/5

6:00 am-2:08 pm

1 stop11h 08m

Ontario

Tue 9/8

1:04 pm-11:59 pm

1 stop7h 55m

$431

Quickest round-trip

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Sun 9/6

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 9/19

12:17 pm-10:17 pm

1 stop7h 00m

$431

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Tue 9/15

7:08 am-10:30 am

1 stop6h 22m

Ontario

Tue 9/22

10:39 pm-11:56 pm

1 stop22h 17m

$461

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?

Prices are currently low for flights on this route.

Typical prices usually range from $384 to $511.
The lowest price recently found on this route was $246.

What is the cheapest month to fly to Ontario?

In general, January 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 $358. If you aren’t able to travel during the month of January, then book flights to Ontario from Detroit during July instead. Flights to Ontario in July, while not as cheap as those in January, still average around $387.

How far in advance should I book a flight from Detroit 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 $470 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 $409 on momondo.

Can stopping save me money on Detroit to Ontario flights?

You could potentially save up to 35% on your flight if you consider stops on a Detroit to Ontario flight.

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 12m
Direct flights	None

The fastest flight from Detroit to Ontario takes 6h 12m

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

Search flight deals

Frequently asked questions about flying from Detroit to Ontario

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 12m, 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 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 30% of all bookings. The subsequent popular airlines are American Airlines at 25%, Southwest at 23%, and Frontier at 21%.

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 $162	Free Cancellation	Rating 5.6 2,715 reviews	Search Frontier flights
American Airlines	PriceFrom $281	Free Cancellation	Rating 7.1 11,897 reviews	Search American Airlines flights
United Airlines	PriceFrom $344	Free Cancellation	Rating 7.4 10,097 reviews	Search United Airlines flights
Delta	PriceFrom $346	Free Cancellation	Rating 7.8 8,497 reviews	Search Delta flights
Southwest	PriceFrom $360	Free Cancellation	Rating 8.0 4,214 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.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Detroit to Los Angeles from $128

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Los Angeles departing on 9/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Detroit to Ontario

Our best Frontier deals on Detroit to Ontario flight tickets

Delta flights from Detroit to Ontario

Our best Delta deals on Detroit to Ontario flight tickets

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

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How to get the cheapest flight ticket from Detroit to Ontario

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

What is the cheapest month to fly to Ontario?

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

Can stopping save me money on Detroit to Ontario flights?

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

What airlines fly to Ontario?

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

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

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

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

When to book flights from Detroit to Ontario

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Detroit to Ontario

Best airlines flying from Detroit to Ontario

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

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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According to popular flight searches on momondo this year

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