DTW - ONT

$136 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 8/5. 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 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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

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

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

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

Everything you should know

Cheapest round-trip
$264
Typical prices: $316-$603
Frontier
Wed 8/19Wed 8/26
DTW - ONT • 1 stop
Cheapest one-way
$136
Typical prices: $209-$338
Frontier
Wed 8/5
DTW - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Detroit and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $371 (round-trip)
Shortest trip • 6h 50m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Detroit to Ontario (DTW-ONT)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Detroit to Ontario

Wed, Aug 19 - Wed, Aug 26
Frontier Logo
9:00 am - 7:01 pm
DTW
-
ONT
13h 01m
1 stop
Frontier Logo
3:40 pm - 6:20 am
ONT
-
DTW
11h 40m
1 stop
$264Frontier
Tue, Jul 28 - Tue, Aug 4
Frontier Logo
7:40 am - 11:50 pm
DTW
-
ONT
19h 10m
1 stop
Frontier Logo
8:17 am - 6:15 pm
ONT
-
DTW
6h 58m
1 stop
$272Frontier
Sat, Jul 25 - Sat, Aug 1
Frontier Logo
7:40 am - 10:04 am
DTW
-
ONT
29h 24m
1 stop
Frontier Logo
11:52 am - 7:00 am
ONT
-
DTW
16h 08m
1 stop
$274Frontier
Tue, Aug 11 - Tue, Aug 18
Frontier Logo
1:19 pm - 10:04 am
DTW
-
ONT
23h 45m
1 stop
Frontier Logo
10:59 am - 6:55 pm
ONT
-
DTW
28h 56m
1 stop
$276Frontier
Wed, Sep 9 - Sat, Sep 19
Frontier Logo
7:20 am - 1:57 pm
DTW
-
ONT
9h 37m
1 stop
Frontier Logo
2:55 pm - 12:24 am
ONT
-
DTW
6h 29m
1 stop
$277Frontier
Wed, Jul 29 - Tue, Aug 4
Frontier Logo
1:19 pm - 11:50 pm
DTW
-
ONT
13h 31m
1 stop
Frontier Logo
3:40 pm - 7:00 am
ONT
-
DTW
12h 20m
1 stop
$278Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
8:30 am - 3:54 pm
DTW
-
ONT
10h 24m
1 stop
Frontier Logo
8:07 am - 8:46 pm
ONT
-
DTW
9h 39m
1 stop
$284Frontier
Tue, Aug 11 - Sat, Aug 15
Frontier Logo
7:40 am - 11:50 pm
DTW
-
ONT
19h 10m
1 stop
Frontier Logo
8:17 am - 6:15 pm
ONT
-
DTW
6h 58m
1 stop
$286Frontier
Thu, Sep 3 - Tue, Sep 8
Frontier Logo
7:55 am - 11:50 pm
DTW
-
ONT
18h 55m
1 stop
Frontier Logo
10:59 am - 4:57 pm
ONT
-
DTW
26h 58m
1 stop
$287Frontier
Wed, Jul 22 - Wed, Jul 29
Frontier Logo
8:52 am - 7:32 am
DTW
-
ONT
25h 40m
1 stop
Frontier Logo
3:40 pm - 7:00 am
ONT
-
DTW
12h 20m
1 stop
$288Frontier
Booking Insights

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.

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

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

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 January, where tickets cost $346 (return) on average. On the other hand, the most expensive months are April and November, where the average cost of round-trip tickets is $554 and $534 respectively.

Good to know

Low seasonJanuary
Cheapest flight$136
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly with an average 10% increase in price.
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 5 days, the lowest price for a flight from Detroit Metropolitan Wayne County Airport to Ontario was $136 for a one-way ticket and $264 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, and SkyTeam 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Detroit to Ontario are Southwest and Delta. With an average price for the route of $507 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 $516 and an overall rating of 7.8.

  • 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.

Reviews of the top 4 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.
7.9
SouthwestOverall score based on 4246 reviews
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

2.0 MediocreIrene, Jun 2026
DEN - SFO
Read more Southwest reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

Southwest's seats are the least comfortable I have ever sat in.

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

Southwest is a discount airline. I get it. You take the (usually) good pricing with the bad (cramped). But Southwest is becoming more and more like the cut-rate airlines *cough* Spirit *cough*. It used to actually be a fun experience. e.g. paying for WiFi is bad enough - having to pay for it on each leg of a flight is ridiculous. Yes, I've seen your numbers that it only "impacts a small percentage", but you and I both know that is misleading at best. While I used to try to fly SW exclusively when flying domestically, now I'll look elsewhere very frequently and price being equal (or close) I'm going to the other carriers.

The flight in it self was good. The delays looking for pilots was unexpected.

Should never have had to go to Detroit from Orlando back to Tennessee!

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

2+hrs delay without any reason provided and a cramped flight

Meh. A late flight meant I missed my connections, and a 2pm LAX arrival turned into gettin in after midnight.

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

Was a great smooth flight from Detroit to San Diego.

Food could have been better. A little more leg room would have been appreciated.

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

It was a good trip. Flight Attendants were friendly and responsive.

Amazing I love American. I’ll never fly anyone else if I can help it.

The trip was very smooth and they provided great customer service

It was on time, which is always a good thing. There wasn’t any food hence my okay rating.

It was a crazy day with a lot of delays and gate changes. Not a huge fan of the Charlotte hub at all.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Plane was hot and miserable and the crew was rude!

They switched our terminal 3 times and we were delayed for four plus hours!!!

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Seats were extremely uncomfortable and it was very hot on the plane.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Xmas Day- Flights were on time for departure and arrival, baggage check in and boarding process were hassle free, baggage also arrived without any delay. Satisfied customer on this journey.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

Boarded late, no communication as to why, a lot of turbulence

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

Information on your arrival and departure airports