Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

ONT - DTW

$73 Find cheap flights from Ontario to Detroit

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Detroit departing on 6/18. 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
0 bags
Thu 7/11
Thu 7/18

Search hundreds of travel sites at once for deals on flights to Detroit

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Detroit, 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 Ontario to Detroit, as well as popular online travel agencies
In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Ontario to Detroit (ONT-DTW)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Detroit 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:16 pm - 5:02 amONT-DTW
8h 46m1 stop
6:35 am - 1:02 pmDTW-ONT
9h 27m1 stop
$158Frontier
Find Deal
Wed, Jul 10 - Wed, Jul 17
5:16 pm - 5:02 amONT-DTW
8h 46m1 stop
10:18 pm - 11:02 amDTW-ONT
15h 44m1 stop
$159Frontier
Find Deal
Wed, Jul 24 - Wed, Jul 31
7:26 pm - 5:05 amONT-DTW
6h 39m1 stop
10:29 pm - 11:56 pmDTW-ONT
28h 27m1 stop
$162Frontier
Find Deal
Tue, Jul 2 - Wed, Jul 10
5:26 pm - 5:05 amONT-DTW
8h 39m1 stop
10:29 pm - 11:56 pmDTW-ONT
28h 27m1 stop
$163Frontier
Find Deal
Tue, Jul 2 - Wed, Jul 10
5:16 pm - 5:03 amONT-DTW
8h 47m1 stop
6:00 am - 6:09 pmDTW-ONT
15h 09m1 stop
$166Frontier
Find Deal
Tue, Aug 6 - Tue, Aug 13
5:16 pm - 5:03 amONT-DTW
8h 47m1 stop
5:56 am - 1:22 pmDTW-ONT
10h 26m1 stop
$167Frontier
Find Deal
Tue, Jul 30 - Wed, Aug 14
5:16 pm - 5:03 amONT-DTW
8h 47m1 stop
12:59 pm - 11:39 pmDTW-ONT
13h 40m1 stop
$168Frontier
Find Deal
Tue, Jul 30 - Tue, Aug 20
5:16 pm - 5:03 amONT-DTW
8h 47m1 stop
6:00 am - 6:09 pmDTW-ONT
15h 09m1 stop
$169Frontier
Find Deal
Tue, Aug 6 - Tue, Aug 13
12:49 am - 11:25 amONT-DTW
7h 36m1 stop
5:56 am - 1:22 pmDTW-ONT
10h 26m1 stop
$176Frontier
Find Deal
Tue, Sep 17 - Wed, Oct 2
5:26 pm - 5:05 amONT-DTW
8h 39m1 stop
7:17 am - 10:57 amDTW-ONT
6h 40m1 stop
$177Frontier
Find Deal
Tue, Jul 2 - Thu, Jul 11

Flights from Ontario to Detroit - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Detroit 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 Ontario to Detroit?

The average price of all flights from Ontario to Detroit Metropolitan Wayne County Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Detroit on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Ontario to Detroit. For your return ticket, we recommend flying on a Tuesday and avoiding Wednesdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Detroit Metropolitan Wayne County Airport, 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 Ontario to Detroit Metropolitan Wayne County Airport is October, where tickets cost $298 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $398 and $398 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Detroit Metropolitan Wayne County Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Detroit Metropolitan Wayne County Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 23 days before departure.

Good to know

Low season

January

High season

July

Cheapest flight

$73
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Ontario to Detroit

When to book flights from Ontario to Detroit

Are your dates flexible? Find out the best times to travel from Ontario to Detroit 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 Ontario to Detroit flights

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

    In the last 3 days, the lowest price for a flight from Ontario to Detroit Metropolitan Wayne County Airport was $73 for a one-way ticket and $158 for a round-trip.

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

    No

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

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

  • Which airline alliances offer flights from Ontario to Detroit?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Detroit are Delta and United Airlines. With an average price for the route of $573 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $611 and an overall rating of 7.4.

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

    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 Ontario to Detroit.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Detroit from Ontario 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 Ontario to Detroit?

    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 Detroit with an airline and back to Ontario with another airline. Booking your flights between Ontario and DTW 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 Ontario to Detroit?

    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 Detroit from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Ontario to Detroit

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Detroit. 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 Ontario to Detroit? 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
DeltaOverall score based on 10277 reviews
7.4Food
8.0Entertainment
7.9Comfort
8.6Crew
8.2Boarding
Airline reviews

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

8.0 ExcellentPatricia, May 2024CMH - DTW
Read more about Delta reviews

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

Delta did an awful job w logistics at DTW. Missed connection. We were there an hour early. SUCKED

Had to run to make it only to have the flight delayed to wait for all the late connectors Second drink service skipped up

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Crew were exceptional. Plane was quiet and quite empty, so I had a row to sleep across.

Gate crew helping to scan tickets was a little short tempered with customers. Flight crew was very friendly, welcoming , and provided excellent service on board.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Was a great smooth flight from Detroit to San Diego.

The entertainment wasn’t playing in the app or online.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

On time take off…US cabins look tired and need of refresh!

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

My flight was uncomfortable and crammed. There were no pockets to store things, I couldn’t move my seat back slightly. Beverages including soda cost extra. My husband flew on another spirit airline flight, which was delayed a total of 48 hours, only to be canceled.

Flight was canceled less than 6 hours before takeoff, rebooked on a flight that was twice as long and left earlier so we couldn’t make it, when using text support option took over 2 hours to speak with someone.

Terrible legroom, seats do not recline, tray table the size of an iPhone, delayed flight, have to pay 5$ to get a cup of water onboard.

EVERYTHING WAS WONDERFUL HOSPITALITY THE HELP.THE SEATING FRIENDLY ALWAYS HAVE A GOOD RIDE NOT ONE BAD EXPERIENCE WITH THEM

This was the smoothest flight I have had in awhile. I was also offered an exit row seat for a great upgrade cost and was able to sleep almost thr whole flight due to comfort and a smooth flight. We left on time and arrived on time.

The crew was the best and very accommodating I know you don't offer any complimentary items but water and coffee will not break the bank !!

My mother was HARASSED AND ACCOSTED by the gate agent for her bag. I pre purchased the bag fee and the gate agent made my 78 year old mother board, deplane, re pay for her bag fee and board again. The gate agent made my mother pick up her own bag and REFUSED to help her, she is an older woman who wasn’t bothering anyone on a flight that had maybe 30’total passengers. I am going to sue this airlines for their HORRIBLE customer service and treatment of my mother, and all this occurred the day after Mother’s Day!!!

Horrible, first flight delayed. They switched my connecting flight while I was en route and even though I was originally supposed to be on the flight going back home to boston, refused to let me board and told me I would have to wait for next flight that was 14 hours later. Ended up renting a car and driving 6.5 hours back home. Still getting messages about flight and it is now showing that the other flight they put me on is now canceled and I would have to wait 24 hours for the next one. I will never book with spirit again

They stuck us with multiple extra fees. I will never fly spirit again

Overall it was a miserable experience... I will never fly spirit for more than a 3 hour flight or overnight.

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Terrible. Seats are bad and the baggage policy is inconsistent

Book cheap flights from Ontario to Detroit

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Detroit found on KAYAK in the last 72 hours.
6/18Tue
1 stopFrontier
27h 19mONT-DTW
$73
6/22Sat
1 stopFrontier
6h 46mONT-DTW
$74
11/1Fri
1 stopUnited Airlines
8h 57mONT-DTW
$186
7/3Wed
1 stopDelta
7h 38mONT-DTW
$194
8/13Tue
2 stopsUnited Airlines
15h 33mONT-DTW
$222
8/3Sat
2 stopsAmerican Airlines
9h 43mONT-DTW
$223
9/11Wed
2 stopsAlaska Airlines
14h 31mONT-DTW
$226
7/23Tue
2 stopsAmerican Airlines
18h 16mONT-DTW
$228
8/20Tue
2 stopsAlaska Airlines
14h 31mONT-DTW
$232
6/16Sun
2 stopsDelta
17h 23mONT-DTW
$441

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Detroit

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Detroit that are departing in the next 10 days.
6/15Sat
multi-stopFrontier
10h 59mONT-DTW
6/22Sat
multi-stopFrontier
7h 48mDTW-ONT
$158
6/13Thu
multi-stopFrontier
27h 49mONT-DTW
6/18Tue
multi-stopFrontier
16h 36mDTW-ONT
$162
6/13Thu
multi-stopFrontier
27h 49mONT-DTW
6/17Mon
multi-stopFrontier
14h 29mDTW-ONT
$164
6/15Sat
multi-stopFrontier
10h 59mONT-DTW
6/22Sat
multi-stopFrontier
28h 03mDTW-ONT
$198
6/15Sat
multi-stopFrontier
10h 59mONT-DTW
6/19Wed
multi-stopFrontier
11h 44mDTW-ONT
$199
6/14Fri
multi-stopUnited Airlines
6h 17mONT-DTW
6/21Fri
multi-stopUnited Airlines
21h 20mDTW-ONT
$825
6/15Sat
multi-stopAmerican Airlines
19h 43mONT-DTW
6/22Sat
multi-stopAmerican Airlines
14h 30mDTW-ONT
$866
6/14Fri
multi-stopAmerican Airlines
13h 35mONT-DTW
6/21Fri
multi-stopAmerican Airlines
11h 59mDTW-ONT
$933
6/14Fri
multi-stopAlaska Airlines
10h 11mONT-DTW
6/21Fri
multi-stopAlaska Airlines
11h 33mDTW-ONT
$1,024
6/14Fri
multi-stopAlaska Airlines
10h 11mONT-DTW
6/19Wed
multi-stopAlaska Airlines
18h 40mDTW-ONT
$1,089

Search by stops

Search by airline

Search by price

Ontario - Detroit Flights

Departure:

Ontario (ONT)United States

Destination:

Detroit (DTW)United States

Return flight deals:

Detroit - Ontario

Cabin classes: