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

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Louisville (SDF) to Rockford (RFD), with fares starting from $213.

What is the lowest current fare from SDF to RFD?

The lowest currently-listed fare from Louisville (SDF) to Rockford (RFD) is $213 on 2026-06-04.

Is there a direct flight from Louisville to Rockford?

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

Cheap flights from Louisville to Rockford

Cheapest current fares: $213 in June 2026 on connecting flights.

Last updated May 26, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Louisville (SDF) to Rockford (RFD). Refreshed daily.

Louisville (SDF) → Rockford (RFD)

June 2026 $213
September 2026 $293
May 2026 $370

Frequently asked questions

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

Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Louisville (SDF) to Rockford (RFD), with fares starting from $213.
What is the lowest current fare from SDF to RFD?

The lowest currently-listed fare from Louisville (SDF) to Rockford (RFD) is $213 on 2026-06-04.
Is there a direct flight from Louisville to Rockford?

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