Delta Flight 4027 Deals & Information (2026/2027)

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Delta Flight 4027 Route Deals From $72

The cheapest prices found with in the last 7 days for return flights were $119 and $72 for one-way flights to Los Angeles - Ontario Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Feb 26 - Mon, Mar 2
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Feb 26 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Mon, Mar 2, priced at $119 found 1 day ago
Tue, Feb 10 - Tue, Feb 17
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$122 Roundtrip, found 3 days ago
$122
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Feb 10 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Tue, Feb 17, priced at $122 found 3 days ago
Wed, Feb 4 - Wed, Feb 11
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$133 Roundtrip, found 1 day ago
$133
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Feb 4 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Wed, Feb 11, priced at $133 found 1 day ago
Sat, Mar 21 - Tue, Mar 24
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$140 Roundtrip, found 1 day ago
$140
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Mar 21 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Tue, Mar 24, priced at $140 found 1 day ago
Wed, Feb 11 - Sat, Feb 14
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$142 Roundtrip, found 4 days ago
$142
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Feb 11 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Sat, Feb 14, priced at $142 found 4 days ago
Sat, Mar 21 - Tue, Mar 24
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$148 Roundtrip, found 1 day ago
$148
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Mar 21 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Tue, Mar 24, priced at $148 found 1 day ago
Fri, Feb 27 - Mon, Mar 2
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$153 Roundtrip, found 12 hours ago
$153
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Feb 27 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Mon, Mar 2, priced at $153 found 12 hours ago