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Cheap flights from Detroit to Los Angeles from $110

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 11/14. 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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Find the cheapest flights from Detroit to Los Angeles

Cheap round-trip flights

Frontier Logo
6:10 am - 7:54 pmDTW-ONT
16h 44m1 stop
Frontier Logo
6:53 am - 12:59 amONT-DTW
15h 06m1 stop
$148Frontier
Find Deal
Thu, Oct 2 - Wed, Oct 8
Frontier Logo
8:00 am - 7:54 pmDTW-ONT
14h 54m1 stop
Frontier Logo
8:59 pm - 11:04 amONT-DTW
11h 05m1 stop
$149Frontier
Find Deal
Tue, Sep 30 - Sat, Oct 4
Frontier Logo
7:55 am - 11:50 pmDTW-ONT
18h 55m1 stop
Frontier Logo
8:34 am - 7:33 pmONT-DTW
7h 59m1 stop
$152Frontier
Find Deal
Tue, Oct 7 - Sat, Oct 11
Frontier Logo
7:55 am - 9:35 amDTW-ONT
28h 40m1 stop
Frontier Logo
8:34 am - 7:33 pmONT-DTW
7h 59m1 stop
$154Frontier
Find Deal
Sat, Oct 18 - Sat, Oct 25
Frontier Logo
6:10 am - 7:54 pmDTW-ONT
16h 44m1 stop
Frontier Logo
6:53 am - 12:59 amONT-DTW
15h 06m1 stop
$157Frontier
Find Deal
Thu, Oct 2 - Wed, Oct 8
Frontier Logo
6:10 am - 7:54 pmDTW-ONT
16h 44m1 stop
Frontier Logo
6:53 am - 12:59 amONT-DTW
15h 06m1 stop
$158Frontier
Find Deal
Thu, Oct 2 - Wed, Oct 8
Frontier Logo
6:00 am - 11:50 pmDTW-ONT
20h 50m1 stop
Frontier Logo
7:04 am - 12:59 amONT-DTW
14h 55m1 stop
$168Frontier
Find Deal
Wed, Oct 15 - Tue, Oct 21
Frontier Logo
8:00 am - 7:54 pmDTW-ONT
14h 54m1 stop
Frontier Logo
8:59 pm - 11:58 pmONT-DTW
23h 59m1 stop
$173Frontier
Find Deal
Tue, Sep 23 - Fri, Sep 26
Logo
9:20 pm - 11:50 pmDTW-ONT
29h 30m2 stops
Logo
12:23 pm - 12:50 amONT-DTW
9h 27m1 stop
$228
Find Deal
Thu, Nov 6 - Thu, Nov 20
Logo
6:29 pm - 5:54 pmDTW-ONT
26h 25m2 stops
Logo
8:00 am - 11:49 pmONT-DTW
12h 49m1 stop
$240
Find Deal
Wed, Oct 8 - Wed, Oct 15

Frontier flights from Detroit to Ontario

Our best Frontier deals on Detroit to Ontario flight tickets
Frontier
Oct 2
DTW6:10 amDetroit Metropolitan Wayne County
16h 44m
1 stop
ONT7:54 pmOntario
Oct 8
ONT6:53 amOntario
15h 06m
1 stop
DTW12:59 amDetroit Metropolitan Wayne County
$148
Find similar
Frontier
Sep 30
DTW8:00 amDetroit Metropolitan Wayne County
14h 54m
1 stop
ONT7:54 pmOntario
Oct 4
ONT8:59 pmOntario
11h 05m
1 stop
DTW11:04 amDetroit Metropolitan Wayne County
$149
Find similar
Frontier
Oct 7
DTW7:55 amDetroit Metropolitan Wayne County
18h 55m
1 stop
ONT11:50 pmOntario
Oct 11
ONT8:34 amOntario
7h 59m
1 stop
DTW7:33 pmDetroit Metropolitan Wayne County
$152
Find similar

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 September 11, 2025.
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

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 10/2

6:10 am-7:54 pm

1 stop16h 44m

Ontario

Wed 10/8

6:53 am-12:59 am

1 stop15h 06m

$148

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 9/30

8:00 am-7:54 pm

1 stop14h 54m

Ontario

Sat 10/4

8:59 pm-11:04 am

1 stop11h 05m

$149

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 10/7

7:55 am-11:50 pm

1 stop18h 55m

Ontario

Sat 10/11

8:34 am-7:33 pm

1 stop7h 59m

$152

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Sat 10/18

7:55 am-9:35 am

1 stop28h 40m

Ontario

Sat 10/25

8:34 am-7:33 pm

1 stop7h 59m

$154

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 10/2

6:10 am-7:54 pm

1 stop16h 44m

Ontario

Wed 10/8

6:53 am-12:59 am

1 stop15h 06m

$157

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 10/2

6:10 am-7:54 pm

1 stop16h 44m

Ontario

Wed 10/8

6:53 am-12:59 am

1 stop15h 06m

$158

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 10/15

6:00 am-11:50 pm

1 stop20h 50m

Ontario

Tue 10/21

7:04 am-12:59 am

1 stop14h 55m

$168

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Tue 9/23

8:00 am-7:54 pm

1 stop14h 54m

Ontario

Fri 9/26

8:59 pm-11:58 pm

1 stop23h 59m

$173

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Thu 11/6

9:20 pm-11:50 pm

2 stops29h 30m

Ontario

Thu 11/20

12:23 pm-12:50 am

1 stop9h 27m

$228

DetroitOntario

DTW - ONT

DTWONT

Detroit Metropolitan Wayne County

Wed 10/8

6:29 pm-5:54 pm

2 stops26h 25m

Ontario

Wed 10/15

8:00 am-11:49 pm

1 stop12h 49m

$240

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, 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 $423 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 $313 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

Direct flights

None
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 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?

  • 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 $155Free CancellationRating
5.8
3,177 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $177Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $329Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
American AirlinesPriceFrom $329Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $344Free CancellationRating
7.9
7,960 reviews
Search Delta flights
SouthwestPriceFrom $390Free CancellationRating
8.0
4,248 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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