$169 Cheap Delta flights Ontario (ONT) to Detroit (DTW)

View $169 flight on Thu, Sep 18, 2025Opens in a new window

$169 Cheap Delta flights Ontario (ONT) to Detroit (DTW)

Prices were available within the past 7 days and start at $169 for one-way flights and $337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Aug 27 - Tue, Sep 9
ONT
Ontario
DTW
Detroit
$337 Roundtrip, just found
$337
Roundtrip
just found
Select Delta flight, departing Wed, Aug 27 from Ontario to Detroit, returning Tue, Sep 9, priced at $337 just found
Flights from Ontario (ONT) to Detroit (DTW)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Detroit Metropolitan Wayne County
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
American Airlines
Distance
1929 mi

Frequently asked questions

How much is a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Detroit Metropolitan Wayne County Airport (DTW)?
You can discover affordable round-trip Delta Air Lines flights from $337 from ONT to DTW by sorting your results from "Price (lowest to highest)" on Expedia. Or search for options from $169 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ONT to DTW with Delta Air Lines?
Delta Air Lines flights to Detroit are typically cheaper in the off-peak months of January and February. Whether you're after a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Los Angeles - Ontario Intl. Airport (ONT) to Detroit Metropolitan Wayne County Airport (DTW) with Delta Air Lines?
Begin your search one to three months before your departure to find cheap fares on Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT) to Detroit Metropolitan Wayne County Airport (DTW). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Nail your timing, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to Detroit Metropolitan Wayne County Airport (DTW)?
To see if there's a direct route from ONT to DTW with Delta Air Lines or other carriers, check the "Nonstop" box when looking for flights.
What is the earliest Delta Air Lines flight from ONT to DTW?
Find Delta Air Lines's earliest flights from ONT to DTW by using our "Early Morning" and "Morning" filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Detroit?
Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT) to Detroit touch down at Detroit Metropolitan Wayne County Airport (DTW). This is the main gateway to this destination.
Why fly with Delta Air Lines from ONT to DTW?
Delta Air Lines makes traveling from ONT to DTW enjoyable with an excellent in-flight experience and a rewarding loyalty program. You also have the chance to earn points with Delta SkyMiles. Don't forget to join Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Detroit Metropolitan Wayne County Airport (DTW)?
Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that time. For more details about altering your flights, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to change your itinerary without additional costs, tick the "Changes included" or "No cancel fee" filter when planning your next getaway.

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*Available to One Key members.