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

${flightsLowestPriceOW} Cheap Delta flights ${flightsOriginNameOW} (${flightsOriginCodeOW}) to ${flightsDestinationNameOW} (${flightsDestinationCodeOW})

Prices were available within the past 7 days and start at ${flightsLowestPriceOW} for one-way flights and $279 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Delta
Mon, Jun 30 - Tue, Jul 1
STL
St. Louis
ONT
Ontario
$279
Roundtrip
Found 1 day ago
Select Delta flight, departing Mon, Jun 30 from St. Louis to Ontario, returning Tue, Jul 1, priced at $279 Found 1 day ago
Delta
Tue, Jul 1 - Mon, Aug 4
STL
St. Louis
ONT
Ontario
$308
Roundtrip
Found 1 day ago
Select Delta flight, departing Tue, Jul 1 from St. Louis to Ontario, returning Mon, Aug 4, priced at $308 Found 1 day ago
Delta
Tue, Jul 1 - Wed, Jul 30
STL
St. Louis
ONT
Ontario
$329
Roundtrip
Found 1 day ago
Select Delta flight, departing Tue, Jul 1 from St. Louis to Ontario, returning Wed, Jul 30, priced at $329 Found 1 day ago
Delta
Tue, Jul 1 - Thu, Jul 31
STL
St. Louis
ONT
Ontario
$348
Roundtrip
Found 1 day ago
Select Delta flight, departing Tue, Jul 1 from St. Louis to Ontario, returning Thu, Jul 31, priced at $348 Found 1 day ago
Delta
Tue, Jul 1 - Sun, Jul 27
STL
St. Louis
ONT
Ontario
$378
Roundtrip
Found 1 day ago
Select Delta flight, departing Tue, Jul 1 from St. Louis to Ontario, returning Sun, Jul 27, priced at $378 Found 1 day ago
Delta
Sun, Jun 29 - Tue, Jul 1
STL
St. Louis
ONT
Ontario
$398
Roundtrip
Found 1 day ago
Select Delta flight, departing Sun, Jun 29 from St. Louis to Ontario, returning Tue, Jul 1, priced at $398 Found 1 day ago
Delta
Thu, Jul 3 - Mon, Aug 4
STL
St. Louis
ONT
Ontario
$427
Roundtrip
Found 1 day ago
Select Delta flight, departing Thu, Jul 3 from St. Louis to Ontario, returning Mon, Aug 4, priced at $427 Found 1 day ago
Delta
Sun, Jun 29 - Wed, Jul 2
STL
St. Louis
ONT
Ontario
$458
Roundtrip
Found 1 day ago
Select Delta flight, departing Sun, Jun 29 from St. Louis to Ontario, returning Wed, Jul 2, priced at $458 Found 1 day ago
Delta
Thu, Jul 3 - Sun, Jul 27
STL
St. Louis
ONT
Ontario
$497
Roundtrip
Found 1 day ago
Select Delta flight, departing Thu, Jul 3 from St. Louis to Ontario, returning Sun, Jul 27, priced at $497 Found 1 day ago
Delta
Tue, Jun 24 - Tue, Jul 1
STL
St. Louis
ONT
Ontario
$544
Roundtrip
Found 1 day ago
Select Delta flight, departing Tue, Jun 24 from St. Louis to Ontario, returning Tue, Jul 1, priced at $544 Found 1 day ago
Delta
Sun, Jun 29 - Sun, Jun 29
STL
St. Louis
ONT
Ontario
$579
Roundtrip
Found 1 day ago
Select Delta flight, departing Sun, Jun 29 from St. Louis to Ontario, returning Sun, Jun 29, priced at $579 Found 1 day ago
Delta
Tue, Jun 24 - Wed, Jul 2
STL
St. Louis
ONT
Ontario
$604
Roundtrip
Found 1 day ago
Select Delta flight, departing Tue, Jun 24 from St. Louis to Ontario, returning Wed, Jul 2, priced at $604 Found 1 day ago
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Flights from St. Louis (STL) to Ontario (ONT)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Delta, Frontier Airlines, Hawaiian Airlines
Popular airline
Delta
Distance
2467 km