OO4991 Flight Status SkyWest Airlines: Sioux Falls to Chicago (SKW4991)

Are you looking for the November 9th, 2026 OO 4991 Kalamazoo to Chicago flight? Go to our OO4991 Kalamazoo to Chicago Flight Status page >

OO 4991 Sioux Falls to Chicago Flight Status

Not scheduled today (November 9th, 2026). Latest flight: October 4th, 2026 ; recent history is in the table below.

OO 4991 Flight Status & Schedule SkyWest Airlines Sioux Falls to Chicago

Date From To Departure Arrival Status Details
Oct 04 FSD ORD 12:15 13:22 Landed Track >
Oct 03 FSD ORD 12:07 13:12 Landed Track >
Oct 02 FSD ORD 13:41 14:44 Landed Late Track >
Oct 01 FSD ORD 12:14 13:31 Landed Track >
Sep 30 FSD ORD 14:01 15:12 Delayed Track >
Sep 29 FSD ORD 12:05 13:14 Landed Track >
Sep 28 FSD ORD 12:17 13:24 Landed Track >
Sep 27 FSD ORD 15:03 14:07 En-Route Track >
Sep 26 FSD ORD 12:10 13:18 Landed Track >
Sep 25 FSD ORD 12:21 13:26 Landed Track >

SkyWest Airlines flight OO 4991 links Sioux Falls and Chicago, 742 km (461 mi) apart. The timetable allows 2 h 1 min, but the flight usually takes about 1 h 5 min, so it often makes up time. It is not flying today; the last flight, on 4 October 2026, landed on time.

< All Sioux Falls FSD Departures All Chicago ORD Arrivals >

About OO 4991

Route
Sioux Falls Regional Airport FSD to Chicago O'Hare International Airport ORD
Distance
742 km (461 mi)
Typical flight time
1 h 5 min
On time
7 of the last 8
Average delay when late
37 min
Usually departs from
Gate 5

OO 4991 FAQ

How long is the OO4991 flight?
The timetable allows 2 h 1 min. Sioux Falls to Chicago is 742 km (461 mi).
How often is OO4991 late?
1 of the last 8 flights arrived 15 or more minutes late; when late, by 37 minutes on average.
Which terminal does OO4991 use?
It usually leaves from gate 5 at Sioux Falls Regional Airport (FSD) and arrives at Terminal 3 at Chicago O'Hare International Airport (ORD). Check the flight card above for today's terminal and gate.
What other flight numbers does OO4991 have?
Also listed as SKW4991 (SkyWest Airlines' ICAO code) and OO 4991.

OO4991 and Sioux Falls FSD to Chicago ORD Flights

Flight OO4991 is code-shared by 3 airlines using the flight numbers AS4401, IB4574, QR2296

Other flights departing from Sioux Falls FSD: DL1435, OO3888, OO3763, G4656

Other flights arriving at Chicago ORD: AA3048, MQ3921, OO6215

All flights connecting Sioux Falls FSD to Chicago ORD.