DTW - ONT

$111 Find Cheap Flights from Detroit to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Detroit to Ontario departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Ontario, as well as popular online travel agencies
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Cheap Flights from Detroit to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Detroit to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Detroit to Ontario

KAYAK's recommended round-trip deals from the most popular airlines that fly from Detroit to Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
9:55 pm - 4:31 pmDTW-ONT
21h 36m1 stop
Frontier Logo
6:30 am - 3:26 pmONT-DTW
5h 56m1 stop
$210Frontier
Find Deal
Wed, May 28 - Wed, Jun 4
Frontier Logo
9:59 pm - 12:20 pmDTW-ONT
17h 21m1 stop
Frontier Logo
5:21 pm - 10:51 amONT-DTW
14h 30m1 stop
$220Frontier
Find Deal
Sun, Jun 1 - Sat, Jun 7
Delta Logo
8:17 am - 12:15 pmDTW-ONT
6h 58m1 stop
Delta Logo
7:05 pm - 6:14 amONT-DTW
8h 09m1 stop
$293Delta
Find Deal
Wed, Jun 4 - Wed, Jun 4
Delta Logo
4:15 pm - 11:08 pmDTW-ONT
9h 53m1 stop
Delta Logo
6:00 am - 7:09 pmONT-DTW
10h 09m1 stop
$340Delta
Find Deal
Sat, May 31 - Tue, Jun 3
American Airlines Logo
11:51 am - 5:52 pmDTW-ONT
9h 01m2 stops
American Airlines Logo
10:50 am - 10:24 pmONT-DTW
8h 34m1 stop
$345American Airlines
Find Deal
Wed, Aug 6 - Sat, Aug 9
United Airlines Logo
9:24 am - 5:25 pmDTW-ONT
11h 01m2 stops
United Airlines Logo
6:41 pm - 10:06 amONT-DTW
12h 25m2 stops
$393United Airlines
Find Deal
Tue, Jun 3 - Wed, Jun 4
United Airlines Logo
8:30 am - 3:16 pmDTW-ONT
9h 46m1 stop
United Airlines Logo
6:00 am - 4:37 pmONT-DTW
7h 37m1 stop
$407United Airlines
Find Deal
Sat, May 17 - Tue, May 20
American Airlines Logo
11:51 am - 5:52 pmDTW-ONT
9h 01m2 stops
American Airlines Logo
7:02 pm - 9:16 amONT-DTW
11h 14m2 stops
$415American Airlines
Find Deal
Wed, Aug 6 - Fri, Aug 8
Southwest Logo
6:30 am - 12:40 pmDTW-ONT
9h 10m2 stops
Southwest Logo
6:40 am - 6:45 pmONT-DTW
9h 05m1 stop
$444Southwest
Find Deal
Thu, Aug 14 - Thu, Aug 21
Southwest Logo
6:30 am - 12:40 pmDTW-ONT
9h 10m2 stops
Southwest Logo
10:20 am - 10:50 pmONT-DTW
9h 30m2 stops
$449Southwest
Find Deal
Thu, Aug 14 - Thu, Aug 21
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KAYAK's insights & trends for Detroit to Ontario flights

Get data-powered insights and trends into flights from Detroit to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Detroit to Ontario?

The average price of all round-trip flights from Detroit Metropolitan Wayne County Airport to Ontario clicked on KAYAK for each day over the last 12 months.

When flying from Detroit to Ontario, you should consider leaving on a Sunday and avoid Wednesdays if you are looking for the best rates. For your return to Detroit, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Detroit Metropolitan Wayne County Airport to Ontario is August, where tickets cost $232 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $573 and $511 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Detroit Metropolitan Wayne County Airport to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$111
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Detroit to Ontario

When to book flights from Detroit to Ontario

Are your dates flexible? Find out the best times to travel from Detroit to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Detroit to Ontario flights

  • What is the cheapest flight from Detroit Metropolitan Wayne County Airport to Ontario?

    In the last 3 days, the lowest price for a flight from Detroit Metropolitan Wayne County Airport to Ontario was $111 for a one-way ticket and $210 for a round-trip.

  • Do I need a passport to fly between Detroit and Ontario?

    A passport is not required to fly from Detroit to Ontario.

  • Which aircraft models fly most regularly from Detroit to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Detroit to Ontario?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Detroit and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Detroit to Ontario, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Detroit to Ontario are Delta and Southwest. With an average price for the route of $450 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $484 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Detroit to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Detroit to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Detroit to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Detroit is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Detroit to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Detroit with another airline. Booking your flights between Detroit and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Detroit to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Detroit up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from Detroit to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Detroit to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Detroit to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4292 reviews
8.6Crew
8.0Comfort
8.2Boarding
7.1Food
7.6Entertainment
Airline reviews

It was a perfect flight in all aspects! Both legs!

10.0 ExcellentAnonymous, Apr 2025LGB - SMF
Read more Southwest reviews

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

The plane arrived 25 minutes late, and the Wi-Fi was slower than it usually is.

Crew was friendly Love the entertainment in the seat head rest.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

Kind staff. Snacks are small but that’s the new normal.

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

I appreciated friendly service from check-in, to boarding, to in-flight amenities! Attendants were accommodating and helpful. Thank you! Elaine

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

The trip was very smooth and they provided great customer service

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

The flight attendant spilled ice all down my leg and all over my suede boots and didn’t even apologize or anything. They just gave me a look like “what?!” Incredibly rude and dismissive. I saw them roll their eyes at other guests and even once yell at a lady with a baby.

Worst airline ever! The guy weighing my bag had his foot on the metal plate and when I called him out on it, I got this stupid little smirk. La is a scam and so is Spirit Airlines. All the flight attendants looked like they hated our flight just as much as we did.

My flight was good from my wheelchair assist to the plan & my exit.

Unclear pricing; ended up being charged an extra $52 just to get onboard

Spirit is awful. Too expensive for what you get. Stop nickel and diming.

would be great to get basic water, soda at least and stop charging for carry ons

Flight was on time It was a good flight overall

Check in at dtw was understaffed and chaotic. Flight itself was smooth. Airplane seats seemed newly upholstered and comfortable, flight attendants attentive.

Your crew is a representation of your Standards and Values. The crew from Seattle to LAX, was very disappointing. The crew was more interested in hanging out at the lobby area. Talking, laughing loudly and eating all the snacks. They did not do regular rounds to see if customers needed anything. This was a huge disappointment. I will no longer be flying with your airlines moving forward.

More groups for smother boarding, I didnt have any food. and there was no entertainment

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

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