$450 Cheap Delta flights Ontario (ONT) to Sioux Falls (FSD)

View $450 flight on Sun, Nov 9, 2025Opens in a new window

$450 Cheap Delta flights Ontario (ONT) to Sioux Falls (FSD)

Prices were available within the past 7 days and start at $450 for one-way flights and $269 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Delta
Sat, Nov 8 - Sat, Nov 15
ONT
Ontario
FSD
Sioux Falls
$269
Roundtrip
Found 3 days ago
Select Delta flight, departing Sat, Nov 8 from Ontario to Sioux Falls, returning Sat, Nov 15, priced at $269 Found 3 days ago
Delta
Sat, Nov 8 - Wed, Nov 12
ONT
Ontario
FSD
Sioux Falls
$329
Roundtrip
Found 3 days ago
Select Delta flight, departing Sat, Nov 8 from Ontario to Sioux Falls, returning Wed, Nov 12, priced at $329 Found 3 days ago
Delta
Sat, Nov 8 - Sun, Nov 16
ONT
Ontario
FSD
Sioux Falls
$403
Roundtrip
Found 3 days ago
Select Delta flight, departing Sat, Nov 8 from Ontario to Sioux Falls, returning Sun, Nov 16, priced at $403 Found 3 days ago
Delta
Tue, Nov 11 - Wed, Nov 12
ONT
Ontario
FSD
Sioux Falls
$504
Roundtrip
Found 3 days ago
Select Delta flight, departing Tue, Nov 11 from Ontario to Sioux Falls, returning Wed, Nov 12, priced at $504 Found 3 days ago
Flights from Ontario (ONT) to Sioux Falls (FSD)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Sioux Falls Regional
Distance
2073 km