What is the cheapest airline to fly from Ontario to Detroit round-trip?

Flying on Frontier is currently your cheapest option to Detroit, with prices starting at $197. This flight start at 61% lower than the current average price 3 months from now.

What are the most popular airlines that fly from Ontario to Detroit?

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Ontario to Detroit.

Can I find flights from Ontario to Detroit for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to Detroit for under $200. The cheapest flight booked recently is on Frontier for just $197, but on average you can expect to pay $245.

Are there last-minute flights available from Ontario to Detroit for under $300?

There are currently 20+ open flights from Ontario to Detroit within the next 7 days for less than $300.

Which airlines flying from Ontario to Detroit have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Ontario to Detroit that may be offering flexible cancellation policies are American Airlines, Delta, and Frontier. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

What is the cheapest day to fly round-trip from Ontario to Detroit?

Users have found that flying from Ontario to Detroit on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Ontario to Detroit?

February is one of the best times of the year to fly to Detroit from Ontario. Prices for February average $417 per person but you can even find prices for as low as $158. The most expensive prices can be found in the month of July. Opting for a February flight can save you 28% on your journey compared to booking in July

When is the cheapest time to fly from Ontario to Detroit (ONT - DTT)?

It’s optimal to fly from Ontario to Detroit in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the morning.

What does ONT to DTW mean?

Ontario Airport is ONT and Detroit Metropolitan Wayne County Airport is DTW. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

Flights from Ontario, CA to Detroit, MI from $112

How to find the cheapest flight from Ontario (ONT) to Detroit (DTT)

Popular in	June
Cheapest in	January
Round-trip from	$210
One-way from	$170

High demand for flights, 24% potential price rise

Search Deals

Best time to find cheap flights, 23% potential price drop

Search Deals

From Ontario to Detroit (DTT)

Search Deals

One-way flight from Ontario to Detroit (DTT)

Search Deals

ONT - DTT Price	$210 - $399
DTT Temperature	24.8 - 73.4 °F
DTT Rainfall	1.8 - 3.1 inches

ONT - DTT

Price

$210 - $399

DTT

Temperature

24.8 - 73.4 °F

DTT

Rainfall

1.8 - 3.1 inches

Users have found that booking a flight from Ontario to Detroit at least 18 days early can save you up to 16% on average compared to booking a flight this week. If booking 18 days before your flight isn’t an option for you, users have found flights from Ontario to Detroit for as little as $426 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $521 for flights departing within the next 3 days.

Cheap flights from Ontario to Detroit in June, July 2023

Scroll through some of the best deals on flights from Ontario to Detroit in 2023. Check back soon for alternative fares.

Jun 19 - Aug 9

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

17h 10m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

11h 09m

$224

Multiple Airlines

Deal found 5/31

Jun 19 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

17h 10m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

21h 40m

$227

Multiple Airlines

Deal found 5/30

Jun 27 - Jul 22

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

14h 39m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 31m

$237

Multiple Airlines

Deal found 5/31

Jun 19 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

25h 33m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 24m

$240

Multiple Airlines

Deal found 5/30

Jun 27 - Jul 18

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

14h 39m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 08m

$241

Multiple Airlines

Deal found 5/31

Jun 6 - Jun 8

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

12h 48m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

20h 29m

$246

Frontier

Deal found 5/31

Jun 14 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 32m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

12h 48m

$248

Frontier

Deal found 5/31

Jun 21 - Aug 9

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 35m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

11h 09m

$250

Frontier

Deal found 5/31

Jun 28 - Jul 22

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 28m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 31m

$251

Multiple Airlines

Deal found 5/31

Ontario to Detroit 2023 flight deals

Scroll through some of the best deals on flights from Ontario to Detroit in 2023. Check back soon for alternative fares.

Jun 19 - Aug 9

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

17h 10m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

11h 09m

$224

Multiple Airlines

Deal found 5/31

Jun 19 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

17h 10m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

21h 40m

$227

Multiple Airlines

Deal found 5/30

Aug 25 - Aug 27

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

23h 54m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

8h 19m

$228

Frontier

Deal found 5/31

Jun 27 - Jul 22

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

14h 39m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 31m

$237

Multiple Airlines

Deal found 5/31

Jun 19 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

25h 33m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 24m

$240

Multiple Airlines

Deal found 5/30

Jun 27 - Jul 18

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

14h 39m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 08m

$241

Multiple Airlines

Deal found 5/31

Jun 6 - Jun 8

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

12h 48m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

20h 29m

$246

Frontier

Deal found 5/31

Jun 14 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 32m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

12h 48m

$248

Frontier

Deal found 5/31

Jun 21 - Aug 9

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 35m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

11h 09m

$250

Frontier

Deal found 5/31

Cheap Frontier flights from Ontario to Detroit

Take a look at some of the lowest-priced Frontier flights heading from Ontario to Detroit. Come back soon if you're not finding the exact deal you're looking for.

Sep 26 - Oct 3

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

15h 12m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

10h 21m

$197

Frontier

Deal found 6/1

Aug 25 - Aug 27

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

23h 54m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

8h 19m

$228

Frontier

Deal found 5/31

Sep 26 - Oct 3

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

15h 12m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

11h 39m

$230

Frontier

Deal found 6/1

Jun 6 - Jun 8

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

12h 48m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

20h 29m

$246

Frontier

Deal found 5/31

Jun 14 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 32m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

12h 48m

$248

Frontier

Deal found 5/31

Jun 21 - Aug 9

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 35m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

11h 09m

$250

Frontier

Deal found 5/31

Jun 20 - Aug 9

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

12h 59m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

11h 09m

$252

Frontier

Deal found 5/31

Jun 28 - Jul 18

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 28m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 08m

$254

Frontier

Deal found 5/31

Jun 13 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

8h 53m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

12h 48m

$258

Frontier

Deal found 5/31

Cheap American Airlines flights from Ontario to Detroit

Take a gander at the lowest prices we've found on American Airlines flights from Ontario to Detroit. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Jun 7 - Dec 1

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

7h 37m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

6h 54m

$618

American Airlines

Deal found 5/30

Jun 6 - Dec 1

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

7h 17m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

6h 54m

$620

American Airlines

Deal found 5/30

Jun 11 - Jun 21

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

7h 37m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

8h 11m

$623

American Airlines

Deal found 5/31

Jun 7 - Dec 1

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

8h 40m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

6h 54m

$625

American Airlines

Deal found 5/30

Jun 11 - Jun 17

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

7h 37m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

7h 17m

$638

American Airlines

Deal found 5/31

Jun 8 - Jun 15

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

7h 37m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 29m

$639

American Airlines

Deal found 5/31

Jun 7 - Jun 15

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

7h 17m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 29m

$641

American Airlines

Deal found 5/31

Jun 11 - Aug 5

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

7h 37m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

8h 13m

$644

American Airlines

Deal found 5/31

Jun 8 - Jun 15

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

9h 21m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

9h 29m

$646

American Airlines

Deal found 5/31

Last minute flights from Ontario to Detroit

Consider one of these great deals we found on last-minute flights from Ontario to Detroit. Tip: verify your flight details before completing your reservation.

Jun 6 - Jun 8

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

12h 48m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

20h 29m

$246

Frontier

Deal found 5/31

Jun 6 - Jun 8

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

12h 48m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

28h 59m

$268

Multiple Airlines

Deal found 5/31

Jun 7 - Jun 8

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

16h 39m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

20h 29m

$280

Multiple Airlines

Deal found 5/31

Jun 10 - Jun 24

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

6h 23m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

10h 51m

$315

Frontier

Deal found 6/1

Jun 7 - Jun 8

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

16h 39m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

21h 54m

$316

Multiple Airlines

Deal found 5/31

Jun 10 - Jun 17

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

12h 34m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

15h 20m

$355

Multiple Airlines

Deal found 5/31

Jun 10 - Jun 17

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

12h 34m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

10h 54m

$357

Multiple Airlines

Deal found 5/31

Jun 11 - Aug 5

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 31m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

1 stop

13h 35m

$428

Frontier

Deal found 5/31

Jun 11 - Aug 4

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 31m

DTW

Detroit Metropolitan Wayne County

ONT

Ontario

2 stops

15h 09m

$433

Frontier

Deal found 5/31

One-way flights to Detroit from Ontario

Take a look at some of the best available options we've come across on one-way flights from Ontario to Detroit. Those needing a return flight from Ontario to Detroit can use the search form above.

Jun 14

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

17h 07m

$112

Multiple Airlines

Deal found 6/1

Aug 9

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

14h 45m

$113

Frontier

Deal found 5/31

Jul 12

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

14h 45m

$120

Frontier

Deal found 5/31

Jun 26

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

25h 33m

$123

Multiple Airlines

Deal found 5/31

Jun 7

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 04m

$126

Frontier

Deal found 5/31

Jun 6

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

13h 38m

$129

Frontier

Deal found 5/31

Jun 15

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

11h 45m

$130

Frontier

Deal found 5/31

Jun 13

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

1 stop

8h 53m

$131

Frontier

Deal found 6/1

Jun 13

ONT

Ontario

DTW

Detroit Metropolitan Wayne County

2 stops

31h 59m

$133

Multiple Airlines

Deal found 6/1

Find flights from Ontario to Detroit within your budget

Fly from

Fly to

Budget

$197 - $248

Route

Depart

Return

Price

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Tue 9/26

1 stop15h 12m

Detroit Metropolitan Wayne County

Tue 10/3

1 stop10h 21m

$197

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Mon 6/19

1 stop17h 10m

Detroit Metropolitan Wayne County

Wed 8/9

1 stop11h 09m

$224

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Mon 6/19

1 stop17h 10m

Detroit Metropolitan Wayne County

Wed 6/21

1 stop21h 40m

$227

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Fri 8/25

1 stop23h 54m

Detroit Metropolitan Wayne County

Sun 8/27

1 stop8h 19m

$228

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Tue 9/26

1 stop15h 12m

Detroit Metropolitan Wayne County

Tue 10/3

2 stops11h 39m

$230

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Tue 6/27

1 stop14h 39m

Detroit Metropolitan Wayne County

Sat 7/22

1 stop9h 31m

$237

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Mon 6/19

2 stops25h 33m

Detroit Metropolitan Wayne County

Wed 6/21

1 stop9h 24m

$240

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Tue 6/27

1 stop14h 39m

Detroit Metropolitan Wayne County

Tue 7/18

1 stop9h 08m

$241

Pick Dates

OntarioDetroit Metropolitan Wayne County

ONT - DTW

ONTDTW

Ontario

Wed 6/14

1 stop11h 32m

Detroit Metropolitan Wayne County

Wed 6/21

1 stop12h 48m

$248

Pick Dates

Flights are sorted by cheapest first

Deals found on 6/1

Reviews of Airlines Servicing Detroit

Peruse reviews from past customers who have flown with Frontier and American Airlines from Ontario to Detroit to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

2,370 reviews

Check prices

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

Delta

8.0

Very good

2,370 reviews

Delta

8.0

Very good

2,370 reviews

Check prices

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

United Airlines

7.6

Good

1,535 reviews

Delta

8.0

Very good

2,370 reviews

Check prices

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

American Airlines

7.3

Good

2,149 reviews

Delta

8.0

Very good

2,370 reviews

Check prices

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

Frontier

5.9

Fair

669 reviews

Delta

8.0

Very good

2,370 reviews

Check prices

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

Related info for your journey

Alternative routes for Ontario to Detroit

Los Angeles to Grand Rapidsfrom $158 pp

Top 5 airlines flying from Ontario to Detroit

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
Frontier	Cheapest$163	Average$296	FlexibilityNo cancel fee	On-time62%	COVID-19 safety	Search Frontier flights
Spirit Airlines	Cheapest$168	Average$297	FlexibilityNo cancel fee	On-time65%	COVID-19 safety	Search Spirit Airlines flights
American Airlines	Cheapest$287	Average$552	FlexibilityNo cancel fee	On-time71%	COVID-19 safety	Search American Airlines flights
United Airlines	Cheapest$366	Average$467	FlexibilityNo cancel fee	On-time69%	COVID-19 safety	Search United Airlines flights
Delta	Cheapest$408	Average$536	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Delta flights

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Ontario to Detroit Metropolitan Wayne County Airport flights

Hourly flight availability from Ontario to Detroit

0%of flight departures	Early morningMidnight to 6 am
100%of flight departures	Morning6 am to noon
0%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

Midnight

6 AM

Noon

6 PM

Weekly flight availability from Ontario to Detroit

Sunday	1daily flight
Monday	0daily flights
Tuesday	0daily flights
Wednesday	0daily flights
Thursday	0daily flights
Friday	0daily flights
Saturday	0daily flights

Cheap flights from Ontario to Detroit (ONT - DTT) from $112

This is the cheapest one-way flight price, found on 6/1. Prices may vary by date and flight preferences.

100% Free

Book with Flexibility

Travel Smart

The best prices from Ontario to Detroit All airports are usually found in January or December, booked 42 days in advance, depart on a Wednesday or Monday and return on a Monday

How to find the cheapest flight from Ontario (ONT) to Detroit (DTT)

All the information you need to plan the best ONT to DTT flight in 2023: compare Ontario to Detroit flight prices with the expected peak season, weather and rainfall in Detroit.

Popular in

Cheapest in

Round-trip from

One-way from

What is the cheapest day to fly round-trip from Ontario to Detroit?

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

What is the cheapest month to fly from Ontario to Detroit?

When is the cheapest time to fly from Ontario to Detroit (ONT - DTT)?

Cheap flights from Ontario to Detroit in June, July 2023

The best prices found for ONT to DTT flights for June, July

Scroll through some of the best deals on flights from Ontario to Detroit in 2023. Check back soon for alternative fares.

Ontario to Detroit 2023 flight deals

Cheap flights to Detroit from Ontario found for this year

Scroll through some of the best deals on flights from Ontario to Detroit in 2023. Check back soon for alternative fares.

Cheap Frontier flights from Ontario to Detroit

Take a look at some of the lowest-priced Frontier flights heading from Ontario to Detroit. Come back soon if you're not finding the exact deal you're looking for.

Cheap American Airlines flights from Ontario to Detroit

Take a gander at the lowest prices we've found on American Airlines flights from Ontario to Detroit. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Last minute flights from Ontario to Detroit

Late deals on return flights to Detroit from Ontario, departing today and this week

Consider one of these great deals we found on last-minute flights from Ontario to Detroit. Tip: verify your flight details before completing your reservation.

One-way flights to Detroit from Ontario

The cheapest one-way flights from Ontario to Detroit

Take a look at some of the best available options we've come across on one-way flights from Ontario to Detroit. Those needing a return flight from Ontario to Detroit can use the search form above.

Find flights from Ontario to Detroit within your budget

Use the slider to find flights from Ontario to Detroit that fit your budget.

Reviews of Airlines Servicing Detroit

Peruse reviews from past customers who have flown with Frontier and American Airlines from Ontario to Detroit to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Useful info, stats and facts about Ontario to Detroit flights.

Which airlines flying from Ontario to Detroit have flexible cancellations due to COVID-19?

Can I find flights from Ontario to Detroit for under $200 on Cheapflights?

Are there last-minute flights available from Ontario to Detroit for under $300?

What is the cheapest airline to fly from Ontario to Detroit round-trip?

What are the most popular airlines that fly from Ontario to Detroit?

What does ONT to DTW mean?

Other flights from Ontario

Other flights to Detroit

Flights to Detroit from Ontario

Rent a Car

Alternative routes for Ontario to Detroit

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to Detroit

The chart below displays the airlines Cheapflights users traveling from Ontario to Detroit choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2023

Hourly flight availability from Ontario to Detroit

See what time of day planes typically take off from Ontario to Detroit

Weekly flight availability from Ontario to Detroit

See how many times per day planes take to the skies headed from Ontario to Detroit