Deal found on October 5, 2026
Los Angeles to Seattle
$138$20131% off
Round trip
Seattle fares from Ontario typically run near $327, and this nonstop Frontier fare is down to $138, a 58% discount. Seattle's waterfront, Pike Place, and easy access to the Cascades make it a great fall or winter city break, and nonstop pricing this low from ONT doesn't show up often.
Travel dates
Dates in November
e.g. Nov 6 – Nov 15 · 9 nights
Date options
4 at this price
Lowest we've seen
$88
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