$114 Cheap United flights Ontario (ONT) to Dallas (DFW)

View $114 flight on Fri, Oct 31, 2025Opens in a new window

$114 Cheap United flights Ontario (ONT) to Dallas (DFW)

Prices were available within the past 7 days and start at $114 for one-way flights and $168 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Oct 31 - Mon, Nov 3
ONT
Ontario
DFW
Dallas
$168 Roundtrip, just found
$168
Roundtrip
just found
Select United flight, departing Fri, Oct 31 from Ontario to Dallas, returning Mon, Nov 3, priced at $168 just found
United
Sat, Jan 17 - Sun, Jan 18
ONT
Ontario
DFW
Dallas
$237 Roundtrip, found 4 hours ago
$237
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Jan 17 from Ontario to Dallas, returning Sun, Jan 18, priced at $237 found 4 hours ago
Flights from Ontario (ONT) to Dallas (DFW)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Dallas-Fort Worth Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Popular airline
American Airlines
Distance
1184 mi
Average flight time
5 hours 1 min

Frequently asked questions

How much is a United Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to Dallas-Fort Worth Intl. Airport (DFW)?
You can discover affordable return United Airlines flights from $168 from ONT to DFW by organizing your results from "Price (lowest to highest)" on Expedia. Or search for options from $114 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 DFW with United Airlines?
United Airlines flights to Dallas tend to be cheaper in the off-peak months of February and January. Whether you're in search of a one-way or a return ticket, you could land a better deal then.
What is the cheapest time to book flights from Los Angeles - Ontario Intl. Airport (ONT) to Dallas-Fort Worth Intl. Airport (DFW) with United Airlines?
Search for affordable United Airlines flights from Los Angeles - Ontario Intl. Airport (ONT) to Dallas-Fort Worth Intl. Airport (DFW) one to three months before your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and itinerary, the best day to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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 United Airlines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to Dallas-Fort Worth Intl. Airport (DFW)?
Fill in your dates, click search and select the "Nonstop" filter on Expedia to browse any direct flights from ONT to DFW with United Airlines or another airline.
What is the earliest United Airlines flight from ONT to DFW?
To find the earliest departure from ONT to DFW with United Airlines, filter your results by "Early Morning" and "Morning." Choosing an early flight usually means you'll experience fewer cancellations.**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 United Airlines fly into in Dallas?
Dallas-Fort Worth Intl. Airport (DFW) is the main Dallas gateway for United Airlines flights from Los Angeles - Ontario Intl. Airport (ONT).
Why fly with United Airlines from ONT to DFW?
A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to travel from ONT to DFW with United Airlines. Plus, by joining Expedia's free One Key™ program, you can earn OneKeyCash™* alongside any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*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 United Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to Dallas-Fort Worth Intl. Airport (DFW)?
Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that time. For more information about modifying your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to update your itinerary without extra charges, tick the "Changes included" and "No cancel fee" filters when organizing your next trip.

Explore a world of travel with Expedia

*Available to One Key members.