$159 Cheap Delta flights Ontario (ONT) to St. Louis (STL)

$159 Cheap Delta flights Ontario (ONT) to St. Louis (STL)

Prices were available within the past 7 days and start at $159 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 27 - Mon, Nov 3

ONT

Ontario

STL

St. Louis

$317 Roundtrip, found 14 hours ago

$317

Roundtrip

found 14 hours ago

Select Delta flight, departing Mon, Oct 27 from Ontario to St. Louis, returning Mon, Nov 3, priced at $317 found 14 hours ago