Are you looking for the June 4th, 2026 K9 91 Oakland County to Detroit flight? Click here to go to our K991 Oakland County to Detroit Flight Status page >

K9 91 Chicago to St. Louis Flight Status

Kalitta Charters Flight K991 from Chicago Midway International Airport MDW to Spirit of St. Louis Airport SUS is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on May 31st, 2026.
Check the table below for K991's most recent flight history:

K9 91 Flight Status & Schedule

Date Departure Arrival Status
May 31 15:25 16:22
En-Route
Track >

Kalitta Charters K9 91 Chicago to St. Louis Flight Information

Kalitta Charters Flight K991 connects Chicago, United States to St. Louis, United States, taking off from Chicago Midway International Airport MDW and landing at Spirit of St. Louis Airport SUS.

How many K991 flights are operated per week?

1 flight per week. The flight K991 is operated on Sunday.

What is the On-Time Performance (OTP) of Kalitta Charters Flight K991 Chicago to St. Louis?

The Airportia On-Time Performance Rating for Kalitta Charters Flight K991 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest K991 flight?

The latest flight took off on Sunday, May 31st, 2026 with the flight status being En-Route on 16:22.

How else can the flight K991 be referenced as?

This Kalitta Charters flight can also be referenced as KFS91, KFS091, K9091, K90091, K9 91, KFS 91.

How often is flight K991 delayed?

On average, 0% of all K991 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled K991 flight or baggage issues?

If your K991 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our K991 Flight Tracker above for more details.

K991 and Chicago MDW to St. Louis SUS Flights

Other flights departing from Chicago MDW: PD2394, WN518, WN1576, WN1550

Other flights arriving at St. Louis SUS: JL61, JL887

All flights connecting Chicago MDW to St. Louis SUS.

K991 Kalitta Charters Flight: Chicago to St. Louis Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.