Delta Flight 4027 Deals & Information (2025/2026)

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Delta Flight 4027 Route Deals From $99

The cheapest prices found with in the last 7 days for return flights were $160 and $99 for one-way flights to Los Angeles - Ontario Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 17 - Tue, Sep 23
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$160 Roundtrip, found 1 hour ago
$160
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Sep 17 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Tue, Sep 23, priced at $160 found 1 hour ago
Fri, Aug 22 - Tue, Aug 26
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$180 Roundtrip, just found
$180
Roundtrip
just found
Select Delta flight, departing Fri, Aug 22 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Tue, Aug 26, priced at $180 just found