Cheap flights from Detroit to Los Angeles from $126
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Los Angeles departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Detroit to Los Angeles
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Frontier flights from Detroit to Ontario
Our best Frontier deals on Detroit to Ontario flight tickets
American Airlines flights from Detroit to Ontario
Our best American Airlines deals on Detroit to Ontario flight tickets
See travel insights to Los Angeles from
How to get the cheapest flight ticket from Detroit to Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Detroit and Ontario?
What is the cheapest month to fly to Ontario?
In general, September is the cheapest month to fly from Detroit to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $196. If you aren’t able to travel during the month of September, then book flights to Ontario from Detroit during February instead. Flights to Ontario in February, while not as cheap as those in September, still average around $281.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Sunday when prices can be found for as low as $248. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Detroit to Ontario for around $406.
What is the cheapest time of day to depart on your flight to Ontario?
In the evening is the cheapest time of day to fly from Detroit to Ontario when you can find flight prices for as low as $297. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $469 on average. Flights to Ontario from Detroit in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Ontario?
You are more likely to see cheaper flights to Ontario from Detroit when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $409 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Detroit for as low as $301 on momondo.
What is the cheapest airline that flies from Detroit to Ontario?
Frontier, Alaska Airlines, and American Airlines are the most popular carriers operating from Detroit to Ontario
What airlines fly to Ontario?
Spirit Airlines, Delta and American Airlines are the top three most popular airlines that fly to Ontario from Detroit according to our data. Spirit Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
When to book flights from Detroit to Ontario
Cheap Detroit to Ontario (DTT to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Detroit to Ontario
How far is Detroit to Ontario by plane?
The straight-line distance from Detroit to Ontario is 1947.2 mi. Flights usually cover this in 6h 13m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Detroit to Ontario Airport?
Prices for flights from Detroit to Ontario Airport were last updated today.
How many operators does momondo search for flights from Detroit to Ontario Airport?
As of June 2025, there are 6 operators available to choose from for flights from Detroit to Ontario Airport.
How old do you have to be to fly from Detroit to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Detroit to Ontario?
momondo data reveals that the most frequently booked airline on the route from Detroit to Ontario is Frontier, representing 33% of all bookings. The subsequent popular airlines are American Airlines at 29%, Delta at 20%, and Southwest at 18%.
Best airlines flying from Detroit to Ontario
Compare and see reviews for airlines that fly from Detroit to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $137 | Free Cancellation | Rating 6.3 8,052 reviews | |||
| PriceFrom $154 | Free Cancellation | Rating 5.9 3,295 reviews | |||
| PriceFrom $344 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $352 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $390 | Free Cancellation | Rating 8.0 4,287 reviews | |||
| PriceFrom $412 | Free Cancellation | Rating 7.4 8,790 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Detroit to Ontario?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Detroit to Ontario for you.
Can I find flights from Detroit to Ontario with flexible booking policies on momondo?
Flights from Detroit to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Detroit to Ontario?
Once all potential Detroit to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Detroit to Ontario right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Detroit and alert you when they change.