What is the cheapest month to fly from Seattle to Osaka?

Based on current 6-month forward fare data, October 2026 is the cheapest month to fly from Seattle (SEA) to Osaka (KIX), with fares starting from $497.

What is the lowest current fare from SEA to KIX?

The lowest currently-listed fare from Seattle (SEA) to Osaka (KIX) is $497 on 2026-10-16.

Is there a direct flight from Seattle to Osaka?

There is currently no non-stop service from SEA to KIX. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Seattle to Osaka

Cheapest current fares: $497 in October 2026 on connecting flights.

Last updated August 3, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Seattle (SEA) to Osaka (KIX). Refreshed daily.

Seattle (SEA) → Osaka (KIX)

October 2026 $497
November 2026 $531

Frequently asked questions

What is the cheapest month to fly from Seattle to Osaka?

Based on current 6-month forward fare data, October 2026 is the cheapest month to fly from Seattle (SEA) to Osaka (KIX), with fares starting from $497.
What is the lowest current fare from SEA to KIX?

The lowest currently-listed fare from Seattle (SEA) to Osaka (KIX) is $497 on 2026-10-16.
Is there a direct flight from Seattle to Osaka?

There is currently no non-stop service from SEA to KIX. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.