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

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Seattle (SEA) to Louisville (SDF), with fares starting from $236.

What is the lowest current fare from SEA to SDF?

The lowest currently-listed fare from Seattle (SEA) to Louisville (SDF) is $236 on 2026-05-28.

Is there a direct flight from Seattle to Louisville?

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

Cheap flights from Seattle to Louisville

Cheapest current fares: $236 in May 2026 on connecting flights.

Last updated May 25, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Seattle (SEA) to Louisville (SDF). Refreshed daily.

Seattle (SEA) → Louisville (SDF)

May 2026 $236

Frequently asked questions

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

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Seattle (SEA) to Louisville (SDF), with fares starting from $236.
What is the lowest current fare from SEA to SDF?

The lowest currently-listed fare from Seattle (SEA) to Louisville (SDF) is $236 on 2026-05-28.
Is there a direct flight from Seattle to Louisville?

There is currently no non-stop service from SEA to SDF. 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.