$210 Cheap Delta flights Ontario (ONT) to Dayton (DAY)

View $210 flight on Thu, Sep 11, 2025Opens in a new window

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$210 Cheap Delta flights Ontario (ONT) to Dayton (DAY)

Prices were available within the past 7 days and start at $210 for one-way flights and $283 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Sep 26 - Sat, Sep 27
ONT
Ontario
DAY
Dayton
$283 Roundtrip, found 20 hours ago
$283
Roundtrip
found 20 hours ago
Select Delta flight, departing Fri, Sep 26 from Ontario to Dayton, returning Sat, Sep 27, priced at $283 found 20 hours ago
Delta
Fri, Sep 12 - Mon, Sep 15
ONT
Ontario
DAY
Dayton
$314 Roundtrip, found 1 hour ago
$314
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Sep 12 from Ontario to Dayton, returning Mon, Sep 15, priced at $314 found 1 hour ago
Delta
Sat, Aug 16 - Tue, Aug 19
ONT
Ontario
DAY
Dayton
$339 Roundtrip, just found
$339
Roundtrip
just found
Select Delta flight, departing Sat, Aug 16 from Ontario to Dayton, returning Tue, Aug 19, priced at $339 just found
Delta
Fri, Sep 19 - Tue, Sep 30
ONT
Ontario
DAY
Dayton
$359 Roundtrip, found 11 hours ago
$359
Roundtrip
found 11 hours ago
Select Delta flight, departing Fri, Sep 19 from Ontario to Dayton, returning Tue, Sep 30, priced at $359 found 11 hours ago
Delta
Sat, Sep 27 - Sun, Sep 28
ONT
Ontario
DAY
Dayton
$363 Roundtrip, found 6 days ago
$363
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Sep 27 from Ontario to Dayton, returning Sun, Sep 28, priced at $363 found 6 days ago
Delta
Wed, Sep 10 - Mon, Sep 15
ONT
Ontario
DAY
Dayton
$364 Roundtrip, found 1 hour ago
$364
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Sep 10 from Ontario to Dayton, returning Mon, Sep 15, priced at $364 found 1 hour ago
Flights from Ontario (ONT) to Dayton (DAY)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
James M. Cox Dayton Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Popular airline
Delta
Distance
1873 mi

Frequently asked questions

How much is a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to James M. Cox Dayton Intl. Airport (DAY)?
Make use of the "Price (lowest to highest)" filter on Expedia to find cheap Delta Air Lines return flights from $283 from ONT to DAY. Affordable one-way fares from $210 are also available.**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 DAY with Delta Air Lines?
January is one of the most affordable months to travel to Dayton with Delta Air Lines. You could also find fantastic deals on return and one-way tickets in February.
What is the cheapest time to book flights from Los Angeles - Ontario Intl. Airport (ONT) to James M. Cox Dayton Intl. Airport (DAY) with Delta Air Lines?
Start searching one to three months before your departure to find cheap fares on Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT) to James M. Cox Dayton Intl. Airport (DAY). 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 cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, 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 James M. Cox Dayton Intl. Airport (DAY)?
To figure out if there's a direct journey from ONT to DAY with Delta Air Lines or another carrier, select the "Nonstop" filter when searching for flights.
What is the earliest Delta Air Lines flight from ONT to DAY?
Filter your results by "Early Morning" and "Morning" to find the earliest departures from ONT to DAY. Leaving early means flight cancellations are less likely.**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 Dayton?
Board a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Dayton, and you'll probably touch down at James M. Cox Dayton Intl. Airport (DAY). This is the airline's primary hub here.
Why fly with Delta Air Lines from ONT to DAY?
Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a favorite for many travelers heading from ONT to DAY. Also, if you're a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future travel purchases.*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 James M. Cox Dayton Intl. Airport (DAY)?
In most cases, you can cancel or change your flight, although there may be additional fees if you booked more than 24 hours ago. Need to keep your options open? Apply the "Changes included" or "No cancel fee" filter to find flights that won't charge extra if you have to revise your plans. To make modifications, head to "Trips," select your flight and click on "Manage Booking" for more information.

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