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Cheap flights from Ontario to Detroit from $78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Detroit departing on 10/31. 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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0 bags

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Find the cheapest flights from Ontario to Detroit (ONT-DTW)

Cheap round-trip flights

Frontier Logo
8:59 pm - 11:04 amONT-DTW
11h 05m1 stop
Frontier Logo
6:10 am - 7:54 pmDTW-ONT
16h 44m1 stop
$147Frontier
Find Deal
sáb., sep. 20 - vie., sep. 26
Frontier Logo
12:59 am - 12:46 amONT-DTW
20h 47m1 stop
Frontier Logo
6:10 am - 7:23 amDTW-ONT
28h 13m1 stop
$148Frontier
Find Deal
mié., sep. 3 - dom., sep. 7
Frontier Logo
8:59 pm - 12:46 amONT-DTW
24h 47m1 stop
Frontier Logo
8:00 am - 7:54 pmDTW-ONT
14h 54m1 stop
$149Frontier
Find Deal
dom., sep. 7 - mar., sep. 9
Frontier Logo
12:59 am - 5:39 pmONT-DTW
13h 40m1 stop
Frontier Logo
6:10 am - 7:23 amDTW-ONT
28h 13m1 stop
$172Frontier
Find Deal
mar., sep. 2 - dom., sep. 7
Logo
10:05 am - 11:49 pmONT-DTW
10h 44m1 stop
Logo
7:55 am - 11:50 pmDTW-ONT
18h 55m1 stop
$228
Find Deal
jue., oct. 23 - sáb., oct. 25
Logo
9:16 am - 5:26 amONT-DTW
17h 10m1 stop
Logo
9:19 pm - 11:33 amDTW-ONT
41h 14m2 stops
$234
Find Deal
jue., sep. 11 - mar., sep. 16
Delta Logo
1:00 pm - 12:03 amONT-DTW
8h 03m1 stop
Delta Logo
6:00 pm - 10:41 pmDTW-ONT
7h 41m1 stop
$337Delta
Find Deal
lun., nov. 24 - mié., dic. 3
Alaska Airlines Logo
3:06 pm - 5:07 amONT-DTW
11h 01m1 stop
Alaska Airlines Logo
6:30 am - 2:12 pmDTW-ONT
10h 42m1 stop
$349Alaska Airlines
Find Deal
lun., sep. 22 - mié., sep. 24
Delta Logo
1:00 pm - 12:03 amONT-DTW
8h 03m1 stop
Delta Logo
5:20 am - 11:24 amDTW-ONT
9h 04m1 stop
$350Delta
Find Deal
lun., nov. 24 - mar., dic. 2
American Airlines Logo
7:16 pm - 9:06 amONT-DTW
10h 50m2 stops
American Airlines Logo
7:00 am - 4:05 pmDTW-ONT
12h 05m2 stops
$360American Airlines
Find Deal
jue., sep. 11 - mar., sep. 16

Frontier flights from Ontario to Detroit Metropolitan Wayne County Airport

Our best Frontier deals on Ontario to Detroit Metropolitan Wayne County Airport flight tickets
Frontier
Sep 20
ONT8:59 pmOntario
11h 05m
1 stop
DTW11:04 amDetroit Metropolitan Wayne County
Sep 26
DTW6:10 amDetroit Metropolitan Wayne County
16h 44m
1 stop
ONT7:54 pmOntario
$147
Find similar
Frontier
Sep 3
ONT12:59 amOntario
20h 47m
1 stop
DTW12:46 amDetroit Metropolitan Wayne County
Sep 7
DTW6:10 amDetroit Metropolitan Wayne County
28h 13m
1 stop
ONT7:23 amOntario
$148
Find similar
Frontier
Sep 7
ONT8:59 pmOntario
24h 47m
1 stop
DTW12:46 amDetroit Metropolitan Wayne County
Sep 9
DTW8:00 amDetroit Metropolitan Wayne County
14h 54m
1 stop
ONT7:54 pmOntario
$149
Find similar

Delta flights from Ontario to Detroit Metropolitan Wayne County Airport

Our best Delta deals on Ontario to Detroit Metropolitan Wayne County Airport flight tickets
Delta
Nov 24
ONT1:00 pmOntario
8h 03m
1 stop
DTW12:03 amDetroit Metropolitan Wayne County
Dec 3
DTW6:00 pmDetroit Metropolitan Wayne County
7h 41m
1 stop
ONT10:41 pmOntario
$337
Find similar
Delta
Nov 24
ONT1:00 pmOntario
8h 03m
1 stop
DTW12:03 amDetroit Metropolitan Wayne County
Dec 2
DTW5:20 amDetroit Metropolitan Wayne County
9h 04m
1 stop
ONT11:24 amOntario
$350
Find similar
Delta
Nov 28
ONT1:00 pmOntario
7h 18m
1 stop
DTW11:18 pmDetroit Metropolitan Wayne County
Dec 3
DTW8:25 amDetroit Metropolitan Wayne County
11h 52m
1 stop
ONT5:17 pmOntario
$355
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Detroit Metropolitan Wayne County Airport 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 agosto 21, 2025.
Use the filters below to find and compare flights from Ontario to Detroit Metropolitan Wayne County Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

sáb. 9/20

8:59 pm-11:04 am

1 stop11h 05m

Detroit Metropolitan Wayne County

vie. 9/26

6:10 am-7:54 pm

1 stop16h 44m

$147

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

mié. 9/3

12:59 am-12:46 am

1 stop20h 47m

Detroit Metropolitan Wayne County

dom. 9/7

6:10 am-7:23 am

1 stop28h 13m

$148

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

dom. 9/7

8:59 pm-12:46 am

1 stop24h 47m

Detroit Metropolitan Wayne County

mar. 9/9

8:00 am-7:54 pm

1 stop14h 54m

$149

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

mar. 9/2

12:59 am-5:39 pm

1 stop13h 40m

Detroit Metropolitan Wayne County

dom. 9/7

6:10 am-7:23 am

1 stop28h 13m

$172

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

jue. 10/23

10:05 am-11:49 pm

1 stop10h 44m

Detroit Metropolitan Wayne County

sáb. 10/25

7:55 am-11:50 pm

1 stop18h 55m

$228

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

jue. 9/11

9:16 am-5:26 am

1 stop17h 10m

Detroit Metropolitan Wayne County

mar. 9/16

9:19 pm-11:33 am

2 stops41h 14m

$234

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

lun. 11/24

1:00 pm-12:03 am

1 stop8h 03m

Detroit Metropolitan Wayne County

mié. 12/3

6:00 pm-10:41 pm

1 stop7h 41m

$337

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

lun. 9/22

3:06 pm-5:07 am

1 stop11h 01m

Detroit Metropolitan Wayne County

mié. 9/24

6:30 am-2:12 pm

1 stop10h 42m

$349

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

lun. 11/24

1:00 pm-12:03 am

1 stop8h 03m

Detroit Metropolitan Wayne County

mar. 12/2

5:20 am-11:24 am

1 stop9h 04m

$350

OntarioDetroit

ONT - DTW

ONTDTW

Ontario

jue. 9/11

7:16 pm-9:06 am

2 stops10h 50m

Detroit Metropolitan Wayne County

mar. 9/16

7:00 am-4:05 pm

2 stops12h 05m

$360

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Detroit from

How to get the cheapest flight ticket from Ontario to Detroit Metropolitan Wayne County Airport

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 cheapest month to fly to Detroit Metropolitan Wayne County Airport?

The cheapest month to fly to Detroit Metropolitan Wayne County Airport from Ontario is in October. Flight prices, which tend to average around $302, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Detroit Metropolitan Wayne County Airport from Ontario during May instead. Flights to Detroit Metropolitan Wayne County Airport in May, while not as cheap as those in October, still average around $386.

What is the cheapest day to depart on your flight to Detroit Metropolitan Wayne County Airport?

The cheapest day to depart from Ontario to Detroit Metropolitan Wayne County Airport is on a Friday when prices can be found for as low as $339. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Detroit Metropolitan Wayne County Airport on Sunday is $430.

What is the cheapest time of day to depart on your flight to Detroit Metropolitan Wayne County Airport?

Flying to Detroit Metropolitan Wayne County Airport from Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $322 when looking at flights departing in the afternoon. Flights to Detroit Metropolitan Wayne County Airport are more costly at noon, with an average ticket price of $417. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Detroit Metropolitan Wayne County Airport?

You are more likely to see cheaper flights to Detroit Metropolitan Wayne County Airport from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit Metropolitan Wayne County Airport for around $477 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit Metropolitan Wayne County Airport from Ontario for as low as $340 on momondo.

How have Ontario to Detroit Metropolitan Wayne County Airport flight prices changed over time?

As of August 2025, prices for Ontario to Detroit Metropolitan Wayne County Airport flights are approximately 29% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Detroit Metropolitan Wayne County Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Detroit Metropolitan Wayne County Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Detroit Metropolitan Wayne County Airport (ONT to DTW) flight deals and tips

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

Direct flights

None
There are no direct flights from Ontario to Detroit Metropolitan Wayne County Airport. There are no popular flight routes from Ontario to Detroit Metropolitan Wayne County Airport.
Search flight deals

  • How far is Ontario to Detroit Metropolitan Wayne County by plane?

    There are 1931.2 mi between Ontario and Detroit Metropolitan Wayne County. A reasonable flight in good conditions will take 6h 03m.

  • When did momondo last update prices for flights from Ontario Airport to Detroit Metropolitan Wayne County Airport?

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

  • How many operators does momondo search for flights from Ontario Airport to Detroit Metropolitan Wayne County Airport?

  • How old do you have to be to fly from Ontario Airport to Detroit Metropolitan Wayne County 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 Ontario Airport to Detroit Metropolitan Wayne County Airport.

  • What documentation or ID do you need to fly to Detroit Metropolitan Wayne County Airport?

    The required travel and health documents for your Detroit Metropolitan Wayne County 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 Detroit Metropolitan Wayne County 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 Ontario to Detroit Metropolitan Wayne County Airport?

Best airlines flying from Ontario to Detroit Metropolitan Wayne County Airport

Compare and see reviews for airlines that fly from Ontario to Detroit Metropolitan Wayne County Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,207 reviews
Search Frontier flights
DeltaPriceFrom $276Free CancellationRating
7.9
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $335Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $394Free CancellationRating
8.0
4,245 reviews
Search Southwest flights
United AirlinesPriceFrom $408Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights

Traveling to a place near Detroit?

Book flights to Detroit if you plan to visit one of these locations
Put-in-Bay
Auburn Hills
Warren
Monroe
Southfield
Troy
Dearborn
Novi
Livonia
Romulus
Port Huron
Port Clinton
Sterling Heights
Roseville
Brighton
Pontiac
Ypsilanti
Madison Heights
Belleville
Royal Oak

Why use momondo?

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

Finding the right flight to Detroit from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Detroit quick and easy, saving you time and money.

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

Yes. All flights to Detroit from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Detroit?

Once all potential Ontario to Detroit 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 Ontario to Detroit right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Detroit now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Detroit and let you know when they change.

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