Flights from Ontario (ONT) to Seattle (SEA)

Route intelligence for ONT → SEA: direct flights, stopover options, and timetable coverage in one place.

Show route on mapAll flights from ONTAll flights to SEA

Direct flights

No direct flights currently listed. See stopover options below.

Stopover options

  • No stopover itineraries available.

Timetable coverage

Published flight numbers: AS530, AS532, DL3816, DL3819, DL4031, DL4070, JL6389, KE3098, KL5993, KL6721, KL6941, QR2126, QR2127, SK3675, SK3875, VS3853, VS4052, VS5467, WS7523, WS8396

Published schedule snapshot may be stale

Flight number: AS 530

Operating days: 1, 2, 3, 4, 5, 6, 7

  • ONT 18:58 → SEA 21:39

Plan this city pair

Compare nearby alternatives and airline networks to decide whether a direct trip, one-stop connection, or reverse search gives you better options.

Explore all departures from ONT →Explore all arrivals to SEA →Compare airline network coverage →Browse airports by country →

Route planning checklist

  • Compare direct duration with one-stop total duration before committing to a fare.
  • Check inbound alternatives on flights to SEA when return timing is important.
  • Use Guides for alliance and hub strategy playbooks.
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