$179 Cheap Delta flights Washington (DCA) to Ontario (ONT)

View $179 flight on Tue, Jan 20, 2026Opens in a new window

$179 Cheap Delta flights Washington (DCA) to Ontario (ONT)

Prices were available within the past 7 days and start at $179 for one-way flights and $979 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Dec 23 - Sun, Jan 4
DCA
Washington
ONT
Ontario
$979 Roundtrip, found 17 hours ago
$979
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Dec 23 from Washington to Ontario, returning Sun, Jan 4, priced at $979 found 17 hours ago
Flights from Washington (DCA) to Ontario (ONT)
Origin airport
Ronald Reagan Washington National
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
Delta
Distance
3614 km