ONT - DTW

$119 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 4/17. 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 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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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.

Recent round-trip flight deals from Ontario to Detroit

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Detroit.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
12:59 am - 1:28 pmONT-DTW
9h 29m1 stop
2:28 pm - 11:59 pmDTW-ONT
12h 31m1 stop
$238Frontier
Find Deal
Thu, May 8 - Mon, May 12
12:10 pm - 1:39 pmONT-DTW
22h 29m1 stop
2:28 pm - 11:59 pmDTW-ONT
12h 31m1 stop
$240Frontier
Find Deal
Sat, Apr 26 - Mon, May 5
1:15 pm - 11:54 pmONT-DTW
7h 39m1 stop
7:00 am - 12:23 pmDTW-ONT
8h 23m1 stop
$387Delta
Find Deal
Sat, Jul 5 - Tue, Jul 15
7:00 am - 4:45 pmONT-DTW
6h 45m1 stop
5:25 am - 11:59 amDTW-ONT
9h 34m2 stops
$392American Airlines
Find Deal
Wed, Apr 23 - Tue, Apr 29
6:30 am - 6:25 pmONT-DTW
8h 55m2 stops
7:10 am - 12:00 pmDTW-ONT
7h 50m2 stops
$397Southwest
Find Deal
Tue, Aug 5 - Wed, Aug 20
11:59 pm - 10:49 amONT-DTW
7h 50m1 stop
5:00 am - 11:50 amDTW-ONT
9h 50m1 stop
$413American Airlines
Find Deal
Wed, Apr 30 - Mon, May 12
1:10 pm - 11:54 pmONT-DTW
7h 44m1 stop
7:00 am - 12:18 pmDTW-ONT
8h 18m1 stop
$425Delta
Find Deal
Tue, Jun 3 - Sun, Jun 8
5:05 am - 4:53 pmONT-DTW
8h 48m2 stops
7:23 am - 12:24 pmDTW-ONT
8h 01m1 stop
$430United Airlines
Find Deal
Wed, May 14 - Fri, May 16
5:05 am - 4:53 pmONT-DTW
8h 48m2 stops
6:00 am - 12:38 pmDTW-ONT
9h 38m2 stops
$435United Airlines
Find Deal
Wed, May 14 - Fri, May 16
10:00 am - 11:05 pmONT-DTW
10h 05m2 stops
6:35 am - 1:00 pmDTW-ONT
9h 25m2 stops
$442Southwest
Find Deal
Sat, Jul 5 - Tue, Jul 15

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.

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

The average price of all round-trip flights from Ontario to Detroit Metropolitan Wayne County Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Ontario to Detroit, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Detroit, Sunday is the cheapest day to fly and Wednesday is the most expensive.

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 $314 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $630 and $606 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. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low season

January

High season

July

Cheapest flight

$119
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 22% 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 3 days, the lowest price for a flight from Ontario to Detroit Metropolitan Wayne County Airport was $119 for a one-way ticket and $238 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?

    oneworld, SkyTeam, and Star Alliance 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 Southwest?

    The two airlines most popular with KAYAK users for flights from Ontario to Detroit are Delta and Southwest. With an average price for the route of $529 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 $604 and an overall rating of 8.0.

  • 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
SouthwestOverall score based on 4275 reviews
8.2Boarding
8.7Crew
7.6Entertainment
8.1Comfort
7.1Food
Airline reviews

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

10.0 ExcellentAnonymous, Mar 2025SNA - OAK
Read more Southwest reviews

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

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

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 used to fly SWA all the time. I know the crew has their little acts that are often fun, and entertaining. On this flight one of the crew was just not nice. Very surprising.

Boarding in Amsterdam is always chaotic. KLM/ Delta has not streamlined or made it efficient as it was boarding in Detroit . The food was mediocre The crew was unfriendly and more focused on getting things done quickly rather than service with a smile .

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Coach seating is debilitating, neither my husband or I can walk the following day

Extremely dosappoontined and frustrated. Refused entry to lounge in Detroit despite having Delta AMEX Reserve linked in MyDelta phone app as revommended and also having proof of account. No pillows were available for overnight flight to AMS and breakfast was not served in Delta Comfort.

I liked the screens in the seat headrest with movies to watch. I didn’t like being forced to check my carryon bag and being told there wasn’t room for my bag - when there were 5 bins sitting empty on takeoff. I didn’t like the “I don’t give a fig” attitude of the flight attendants and the delta gate attendants when I asked why they decided to put me out. They gave me a 1800 number to call but I can’t get a live person on the phone. Customer service is non existent. My business must not be that important to them.

The airplanes were so old and out-dated it was terrifying to fly on them.

It was very good. Our flight was delayed and we as a result missed our connecting flight but rescheduled to the next day. The Need Help staff was so great and offered us compensation that was beyond satisfactory.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

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!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

After several delays and being rebooked onto a layer flight, I had to speak to three AA agents for baggage claim to get an attendant. All were in foul mode and reluctant to assist or offer any assistance.

Seats are uncomfortable and too close together. Also, you missed my connection in Vegas on the way back and I ended up sleeping in the airport, flying back to Burbank instead of LAX and I got home 12 hours late.

Surprising everything went well. Nice attendants and fast getting on and off the plane. Overall, was happy with the experience.

Pl meed tp make proper accom for all pets and owners by placing them on a section to accommodate human animal allergies and give up a few seats YWS ACCOMMODATIONS SHOULD BE MADEBY THE AIRLINES and not pushed off to another paying customer that has to sit in fear or by being touched by someone elses animal.

Non-professional acting crew, Very uncomfortable seats…!! Very bad pricing with all the add-ons for seat choice, luggage fees, etc….soon you’ll charge extra for oxygen. The ticket price means Nothing because in the end, the actual amount i paid, i could have and will in the future continue to fly on a real airline…

With this price, I shouldn't complain on anything. I understand I have to pay for every services they provide. The plane could smell a little better. Advise them to use frebeeze to freshen up the interior a little bit.

Terrible. 1st and last flight on Spirit. Check in process was a nightmare. Despite arriving 1.6 hours before flight we had to be pulled from the ridiculously long line to “self check” our bags which took 10 min and required assistance. Seats are very uncomfortable , don’t move, no pockets, no entertainment, no wifi Basically like taking a time capsule back to the 70s. No thank you.

They kept delaying us and not providing any information which cost us hundreds of dollars . We had an event to get to and missed our even that we had paid for along with lots of wasted time and money booking nee flights.

It’s ridiculous to pay for carry-on luggage. I also wasn’t given an option to specify I have carry on bag at time of ticket purchase. I also could not specify I have carry on luggage at time of online check-in.

Nothing I liked. Seats uncomfortable child behind kicking my seat entire flight. Delayed. Couldn't get free glass of water

The gate area was terrible at San Diego airport -way too crowded in a small space. Since my husband was driving to our destination, we did not have to take any luggage so my kids and I only had backpacks. Therefore everything was easy and smooth. And we didn’t have to pay up charges for everything and it was a short flight. I tried table was broken and it was a little cramped, but it was fine for what we needed. I probably would not fly spirit on a longer flight and if I had to take baggage.

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

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

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.. .

With frontier you get what you pay for. The flight was two hours late. It’s a tight fit for the number of people they bring but you get to where you’re going cheap. Sometimes that’s more important than a nifty drink and cool TV..

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

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