What is the cheapest month to fly from Niagara Falls to Louisville?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Niagara Falls (IAG) to Louisville (SDF), with fares starting from $513.

What is the lowest current fare from IAG to SDF?

The lowest currently-listed fare from Niagara Falls (IAG) to Louisville (SDF) is $513 on 2026-08-15.

Is there a direct flight from Niagara Falls to Louisville?

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

Cheap flights from Niagara Falls to Louisville

Cheapest current fares: $513 in August 2026 on connecting flights.

Last updated August 5, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Niagara Falls (IAG) to Louisville (SDF). Refreshed daily.

Niagara Falls (IAG) → Louisville (SDF)

August 2026 $513

Frequently asked questions

What is the cheapest month to fly from Niagara Falls to Louisville?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Niagara Falls (IAG) to Louisville (SDF), with fares starting from $513.
What is the lowest current fare from IAG to SDF?

The lowest currently-listed fare from Niagara Falls (IAG) to Louisville (SDF) is $513 on 2026-08-15.
Is there a direct flight from Niagara Falls to Louisville?

There is currently no non-stop service from IAG 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.