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Cheap flights from Detroit to Los Angeles from $133

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 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Detroit to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:52 am - 5:52 pm
DTW
-
ONT
12h 00m
1 stop
Frontier Logo
3:34 pm - 7:00 am
ONT
-
DTW
12h 26m
1 stop
$274Frontier
Tue, Aug 18 - Sat, Aug 22
Frontier Logo
8:52 am - 7:32 am
DTW
-
ONT
25h 40m
1 stop
Frontier Logo
6:00 am - 12:34 pm
ONT
-
DTW
27h 34m
1 stop
$275Frontier
Tue, Aug 4 - Thu, Aug 6
Frontier Logo
8:52 am - 7:32 am
DTW
-
ONT
25h 40m
1 stop
Frontier Logo
9:36 am - 6:49 pm
ONT
-
DTW
30h 13m
1 stop
$276Frontier
Thu, Aug 6 - Tue, Aug 11
Frontier Logo
8:52 am - 7:32 am
DTW
-
ONT
25h 40m
1 stop
Frontier Logo
6:00 am - 12:34 pm
ONT
-
DTW
27h 34m
1 stop
$278Frontier
Wed, Jul 8 - Tue, Jul 14
Frontier Logo
8:52 am - 7:32 am
DTW
-
ONT
25h 40m
1 stop
Frontier Logo
6:00 am - 11:59 pm
ONT
-
DTW
14h 59m
1 stop
$280Frontier
Wed, Jul 8 - Wed, Jul 15
Frontier Logo
8:30 am - 3:09 pm
DTW
-
ONT
9h 39m
1 stop
Frontier Logo
3:34 pm - 7:00 am
ONT
-
DTW
12h 26m
1 stop
$282Frontier
Mon, Aug 24 - Wed, Sep 2
Frontier Logo
8:52 am - 7:32 am
DTW
-
ONT
25h 40m
1 stop
Frontier Logo
6:47 pm - 10:54 am
ONT
-
DTW
13h 07m
1 stop
$284Frontier
Tue, Aug 4 - Tue, Aug 18
Frontier Logo
8:52 am - 7:32 am
DTW
-
ONT
25h 40m
1 stop
Frontier Logo
8:17 am - 6:15 pm
ONT
-
DTW
6h 58m
1 stop
$286Frontier
Wed, Aug 12 - Sat, Aug 15
Frontier Logo
1:22 pm - 10:05 am
DTW
-
ONT
23h 43m
1 stop
Frontier Logo
6:00 am - 11:59 pm
ONT
-
DTW
14h 59m
1 stop
$287Frontier
Tue, Sep 1 - Tue, Sep 8
Frontier Logo
8:30 am - 3:09 pm
DTW
-
ONT
9h 39m
1 stop
Frontier Logo
3:34 pm - 7:00 am
ONT
-
DTW
12h 26m
1 stop
$290Frontier
Tue, Aug 18 - Wed, Aug 19

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Frontier flights from Detroit to Ontario

Our best Frontier deals on Detroit to Ontario flight tickets
Frontier
Aug 18
DTW8:52 amDetroit Metropolitan Wayne County
12h 00m
1 stop
ONT5:52 pmOntario
Aug 22
ONT3:34 pmOntario
12h 26m
1 stop
DTW7:00 amDetroit Metropolitan Wayne County
$274
Frontier
Aug 4
DTW8:52 amDetroit Metropolitan Wayne County
25h 40m
1 stop
ONT7:32 amOntario
Aug 6
ONT6:00 amOntario
27h 34m
1 stop
DTW12:34 pmDetroit Metropolitan Wayne County
$275
Frontier
Aug 6
DTW8:52 amDetroit Metropolitan Wayne County
25h 40m
1 stop
ONT7:32 amOntario
Aug 12
ONT10:49 amOntario
10h 10m
1 stop
DTW11:59 pmDetroit Metropolitan Wayne County
$276

momondo Fare Finder

 
Customize your flight search to find flights from Detroit to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 15, 2026.
Use the filters below to find and compare flights from Detroit to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 8/18

8:52 am-5:52 pm

1 stop12h 00m

Ontario

Sat 8/22

3:34 pm-7:00 am

1 stop12h 26m

$274

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 8/4

8:52 am-7:32 am

1 stop25h 40m

Ontario

Thu 8/6

6:00 am-12:34 pm

1 stop27h 34m

$275

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 8/6

8:52 am-7:32 am

1 stop25h 40m

Ontario

Tue 8/11

9:36 am-6:49 pm

1 stop30h 13m

$276

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 7/8

8:52 am-7:32 am

1 stop25h 40m

Ontario

Tue 7/14

6:00 am-12:34 pm

1 stop27h 34m

$278

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 7/8

8:52 am-7:32 am

1 stop25h 40m

Ontario

Wed 7/15

6:00 am-11:59 pm

1 stop14h 59m

$280
Quickest round-trip

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Mon 8/24

8:30 am-3:09 pm

1 stop9h 39m

Ontario

Wed 9/2

3:34 pm-7:00 am

1 stop12h 26m

$282

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 8/4

8:52 am-7:32 am

1 stop25h 40m

Ontario

Tue 8/18

6:47 pm-10:54 am

1 stop13h 07m

$284

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 8/12

8:52 am-7:32 am

1 stop25h 40m

Ontario

Sat 8/15

8:17 am-6:15 pm

1 stop6h 58m

$286

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 9/1

1:22 pm-10:05 am

1 stop23h 43m

Ontario

Tue 9/8

6:00 am-11:59 pm

1 stop14h 59m

$287

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 8/18

8:30 am-3:09 pm

1 stop9h 39m

Ontario

Wed 8/19

3:34 pm-7:00 am

1 stop12h 26m

$290

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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, 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 $138. If you aren’t able to travel during the month of January, then book flights to Ontario from Detroit during September instead. Flights to Ontario in September, while not as cheap as those in January, still average around $149.

Can stopping save me money on Detroit to Ontario flights?

You could potentially save up to 33% 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 22m

Direct flights

None
The fastest flight from Detroit to Ontario takes 6h 22m
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 22m, 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?

  • 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?

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
FrontierPriceFrom $162Free CancellationRating
5.6
2,887 reviews
Search Frontier flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,396 reviews
Search Delta flights
American AirlinesPriceFrom $304Free CancellationRating
7.1
11,660 reviews
Search American Airlines flights
United AirlinesPriceFrom $329Free CancellationRating
7.4
9,831 reviews
Search United Airlines flights
SouthwestPriceFrom $360Free CancellationRating
7.9
4,235 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

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