ONT - DTW

$130 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 8/12. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Detroit Metropolitan Wayne County Airport

 
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
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Everything you should know

Cheapest round-trip
$264
Typical prices: $396-$572
Frontier
Tue 8/25Tue 9/1
ONT - DTW • 1 stop
Cheapest one-way
$130
Typical prices: $138-$292
Frontier
Wed 8/12
ONT - DTW • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Detroit. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $440 (round-trip)
Shortest trip • 6h 25m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 34% compared to booking last minute.
Insights
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When to travel
Cheapest • 33% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Detroit!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Detroit

Tue, Aug 25 - Tue, Sep 1
Frontier Logo
3:40 pm - 6:20 am
ONT
-
DTW
11h 40m
1 stop
Frontier Logo
8:30 am - 3:54 pm
DTW
-
ONT
10h 24m
1 stop
$264Frontier
Thu, Aug 27 - Wed, Sep 2
Frontier Logo
3:40 pm - 6:20 am
ONT
-
DTW
11h 40m
1 stop
Frontier Logo
9:00 am - 7:01 pm
DTW
-
ONT
13h 01m
1 stop
$267Frontier
Sat, Sep 26 - Thu, Oct 1
Frontier Logo
8:07 am - 8:46 pm
ONT
-
DTW
9h 39m
1 stop
Frontier Logo
9:41 pm - 7:12 am
DTW
-
ONT
12h 31m
1 stop
$268Frontier
Mon, Aug 10 - Mon, Aug 17
Frontier Logo
8:17 am - 6:15 pm
ONT
-
DTW
6h 58m
1 stop
Frontier Logo
8:30 am - 3:54 pm
DTW
-
ONT
10h 24m
1 stop
$270Frontier
Sat, Aug 1 - Sat, Aug 8
Frontier Logo
3:40 pm - 7:00 am
ONT
-
DTW
12h 20m
1 stop
Frontier Logo
9:06 am - 7:32 am
DTW
-
ONT
25h 26m
1 stop
$271Frontier
Sat, Aug 15 - Sat, Aug 22
Frontier Logo
8:17 am - 6:15 pm
ONT
-
DTW
6h 58m
1 stop
Frontier Logo
7:55 am - 10:04 am
DTW
-
ONT
29h 09m
1 stop
$272Frontier
Wed, Jul 29 - Tue, Aug 11
Frontier Logo
6:00 am - 11:59 pm
ONT
-
DTW
14h 59m
1 stop
Frontier Logo
9:06 am - 7:32 am
DTW
-
ONT
25h 26m
1 stop
$274Frontier
Thu, Aug 6 - Tue, Aug 11
Frontier Logo
8:17 am - 6:15 pm
ONT
-
DTW
6h 58m
1 stop
Frontier Logo
7:40 am - 10:04 am
DTW
-
ONT
29h 24m
1 stop
$275Frontier
Tue, Aug 11 - Thu, Aug 20
Frontier Logo
4:09 pm - 7:00 am
ONT
-
DTW
11h 51m
1 stop
Frontier Logo
8:20 am - 4:22 pm
DTW
-
ONT
11h 02m
1 stop
$277Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
9:36 am - 6:49 pm
ONT
-
DTW
30h 13m
1 stop
Frontier Logo
7:40 am - 11:50 pm
DTW
-
ONT
19h 10m
1 stop
$279Frontier
Booking Insights

KAYAK's insights & trends for Ontario to Detroit flights

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.

How much is a round-trip flight from Ontario to Detroit Metropolitan Wayne County Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Detroit Metropolitan Wayne County Airport departing in August.

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 round-trip 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 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $568 and $567 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from Ontario to Detroit Metropolitan Wayne County Airport, you should book around 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$130
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 7% lower on average.
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 5 days, the lowest price for a flight from Ontario to Detroit Metropolitan Wayne County Airport was $130 for a one-way ticket and $264 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 Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from Ontario to Detroit are Southwest and Delta. With an average price for the route of $567 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $499 and an overall rating of 7.8.

  • 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.

Reviews of the 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.
7.9
SouthwestOverall score based on 4246 reviews
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
Airline reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

10.0 Excellentkelly, Jul 2026
SFO - PHX
Read more Southwest reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

The plane was not very clean. Lots of napkins and kleenex on the floor and in the seat pocket

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

We had a great experience with Delta. They helped us from the start at the kiosk all the way to our final destination, including help reassigning and upgrading our seats free of charge at the gates, escorts with the wheelchair for my brother and even getting our luggage at baggage claim for us. I also had special help because I forgot my pillow on the plane. The wheelchair escort contacted for associates at the check-in desk all the way back to the plane and retrieved my pillow for me.

Very good flight. Crew was great. No issues and we even arrived early.

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Didn't like sitting on the waiting pad for 30 minutes right after departing the gate. If you're going to do that, just don't board so people can still get up and walk around in the terminal. My luggage was damaged by the baggage handlers.

The gentleman at the gate I think his name is RIE was exceptional

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

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!!!!

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.

Gate agent was a terrible person out to make people miserable

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

The boarding process on the departure from LA was rather slow even though I was in Group 1. For first class, I was not expecting to have to pay for Wi-fi but I did and then the wi-fi was spotty. The entree was surprisingly good and so that was a pleasant surprise. However, once I got to Houston, it was terrible. Unfortunately there was bad weather but the constant gate changes for my connecting flight was difficult to manage due to having to navigate back and forth between different terminals.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Not enough veg food available for passengers. I actually did not get the veg food and was told it was over, and I starved the entire flight duration.

Plane was was better than th YVR to ORD flight but was a fraction of the distance. Fly your better planes on longer distance flights.

In this flight we had selected seating for our family in the middle of the plane in a 2x2 format. The airline changed them to the very back row of the plane and split them to 3x1. Why pay for seats that allow seat selection if the airline will just move them to the worst seats in the plane?

The flight was canceled. Got rebooked to Chicago and when we arrived our luggage where to there. They were going to our original destination the day after. They would not deliver them to our house. We had to go pick them up.

Upgrade planes to have larger overhead bins, especially on this popular route and first class. Easy flight to Chicago, good service in first class. Can't wait for seatback entertainment to be brought back. I like the free wifi and messaging with T-Mobile. Although, the tray tables are not big enough to work even on a small laptop - so why is it called "business" class? Flight attendant said that the flight was too short to even serve water. I've flown that route several times, and that is the first time I ever heard that. No chargers in the seats. Rough landing.

Pilots were great on take off and landing. Flight attendant were very kind. The only problem was take off was later than the scheduling.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

I rated the experience "mediocre" because of the 2 hour delay in take off. This is the 4th flight from DFW on AA where there was a delay and in one of the instances (after 13 delays), the flight was cancelled. I understand weather but for the March 18th flight, there was no weather issue in Dallas or Detroit. I called Concierge Key and they were wonderful, booking me on a later flight in case my flight was cancelled. I have flown with American for many years and never has there been this consistent pattern of delays. Very disappointing.

The flight was on time and arrived early. The crew were friendly and helpful.

My carry on baggage was damaged. Entire trip, I had to carry the baggage. When complained to the boarding crew, they got mad at me and still asked me to valet check in the cabin baggage. Rude boarding crew!!!

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

American Airlines initially postponed the flight. Then they cancelled it an rescheduled us on a flight that would take over 24 hours with multiple stops. They then changed this flight to a reasonable alternative the next day which they later cancelled and replaced with a flight that would take off with an additional 16 hour delay. They blamed weather but I noticed (at 4am) that Delta had direct flights from Charlotte to Detroit. I went on line. Booked it and was in Detroit buy 9am. The interesting thing is they did a similar thing to a family member just 2 days earlier. I don't think I will fly American unless I have to.

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

The offered WiFi on AA isn't worth wasting time or effort on. If you manage to connect it's incredibly slow.

The service was good during the flight, but booking process was arduous due to mysterious partial cancellation (on the return leg), which took me 1 whole day to connect to the RJ’s NYC ticketing department to straighten it out. The reservation line of RJ customer service said they did not have the authority to un-cancel it, nor refund the ticket. To undo, I would have to email the NYC office and wait 5-6 days for reply, while my departure is 5 days away. Then the NYC phone number given (and I also found on their website) had no one answering, until I got someone in accounting or HR department to transfer me to ticketing dept. Then the seat upgrade at the gate only takes cash, no CC. From speaking with other tour mates, other airlines were given them the similar headache too - cancelling part of the trip without rescheduling options.

It was awful everything about it terrible I will never ever ever ride it again

Both legs of the flight were changed. The day of the flight and length of the trip.

They switched my flight to Spirit, Never using Kayak again,

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There were a lot of issues at the gate in Atlanta — which caused delays in boarding and getting to our destination. The aircraft and crew were excellent.

It was fine. The flight was delayed for 3 hours. I had things scheduled in Detroit, and I let a lot of people down by not being there on time.

Long lines, rude staff, everything that's offered you have to pay for.

Flight was canceled as soon as I got to the airport

Everything you need to know for your flight from Ontario to Detroit

Information on your arrival and departure airports