$371 Cheap United flights Washington (IAD) to Ontario (ONT)

$371 Cheap United flights Washington (IAD) to Ontario (ONT)

Prices were available within the past 7 days and start at $371 for one-way flights and $740 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 23 - Sun, Jan 4

IAD

Washington

ONT

Ontario

$740 Roundtrip, found 1 day ago

$740

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from Washington to Ontario, returning Sun, Jan 4, priced at $740 found 1 day ago

Tue, Dec 23 - Sun, Jan 4

IAD

Washington

ONT

Ontario

$746 Roundtrip, found 1 day ago

$746

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from Washington to Ontario, returning Sun, Jan 4, priced at $746 found 1 day ago

Tue, Dec 23 - Sun, Jan 4

IAD

Washington

ONT

Ontario

$840 Roundtrip, found 1 day ago

$840

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from Washington to Ontario, returning Sun, Jan 4, priced at $840 found 1 day ago

Tue, Dec 23 - Sun, Jan 4

IAD

Washington

ONT

Ontario

$846 Roundtrip, found 1 day ago

$846

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from Washington to Ontario, returning Sun, Jan 4, priced at $846 found 1 day ago

Tue, Dec 23 - Sun, Jan 4

IAD

Washington

ONT

Ontario

$904 Roundtrip, found 1 day ago

$904

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from Washington to Ontario, returning Sun, Jan 4, priced at $904 found 1 day ago

Tue, Dec 23 - Sun, Jan 4

IAD

Washington

ONT

Ontario

$950 Roundtrip, found 1 day ago

$950

Roundtrip

found 1 day ago

Select United flight, departing Tue, Dec 23 from Washington to Ontario, returning Sun, Jan 4, priced at $950 found 1 day ago