tue, feb 11 - tue, feb 11 lax los angeles intl. sea seattle - tacoma intl. $63 roundtrip, found 17 hours ago $63 roundtrip found 17 hours ago select frontier airlines flight, departing tue, feb 11 from los angeles intl. to seattle - tacoma intl., returning tue, feb 11, priced at $63 found 17 hours ago