--- title: "Chicago (ORD) to Sioux City (SUX) flights: who flies it" description: "United Airlines flies Chicago (ORD) to Sioux City (SUX) nonstop twice a week as UA 5021, scheduled at 1h 50m to 1h 53m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/ord-sux" url: "https://2lnr.com/routes/ord-sux.md" date_modified: "2026-10-18T05:10:47Z" --- # Chicago to Sioux City (ORD-SUX): nonstop flights and who flies them United Airlines flies nonstop from Chicago (ORD) to Sioux City (SUX) just twice a week. In the timetable below it flies as UA 5021, scheduled at 1h 50m to 1h 53m for the 435 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See ORD to SUX on the interactive map [Get started free](https://2lnr.com/login) 2 Flights a week, 4-week average 1h 50m to 1h 53m Scheduled flight time 435 mi Nonstop distance Free To get started ## Chicago to Sioux City flight schedule Scheduled nonstop departures for ORD to SUX starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Chicago (ORD) to Sioux City (SUX) | Date | Flight | Airline | Departs ORD | Arrives SUX | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | UA 5021 | United Airlines | 16:00 | 17:53 | 1h 53m | [Bombardier CRJ-200](https://2lnr.com/seatmaps/ua/crj-200.md) | | Sat, Oct 24 | UA 5021 | United Airlines | 16:00 | 17:53 | 1h 53m | Bombardier CRJ-200 | | Sun, Nov 22 | UA 5021 | United Airlines | 16:20 | 18:10 | 1h 50m | CRJ | | Mon, Nov 23 | UA 5021 | United Airlines | 16:20 | 18:10 | 1h 50m | Bombardier CRJ-200 | | Tue, Nov 24 | UA 5021 | United Airlines | 16:20 | 18:10 | 1h 50m | Bombardier CRJ-200 | | Wed, Nov 25 | UA 5021 | United Airlines | 16:20 | 18:10 | 1h 50m | Bombardier CRJ-200 | | Thu, Nov 26 | UA 5021 | United Airlines | 16:20 | 18:10 | 1h 50m | CRJ | Showing all 7 scheduled ORD to SUX departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every ORD to SUX date on the interactive map ## Aircraft on the Chicago to Sioux City nonstop United Airlines flies the departures in the schedule table on this page with the [Bombardier CRJ-200](https://2lnr.com/seatmaps/ua/crj-200.md) and the Bombardier CRJ. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full ORD to SUX nonstop schedule This page carries the full ORD to SUX nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each ORD to SUX nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See ORD to SUX on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Chicago to Sioux City nonstop Carriers operating ORD to SUX nonstop in the current schedule. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) See ORD to SUX on the interactive map → ## Frequently asked questions about ORD to SUX **How long is the flight from Chicago (ORD) to Sioux City (SUX)?** Scheduled flight times from Chicago (ORD) to Sioux City (SUX) run from 1h 50m to 1h 53m across the departures in the schedule table on this page. The nonstop covers about 435 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from ORD to SUX?** United Airlines is currently the only airline flying ORD to SUX nonstop. 2LNR doesn't show award or upgrade space for it on ORD to SUX, so this page carries the schedule rather than a space claim. **How often does ORD to SUX operate?** The ORD to SUX nonstop currently runs twice a week, on United Airlines. Thin schedules like this change by season, and on Pro an alert will catch anything added. **What time do flights from ORD to SUX depart?** Scheduled ORD to SUX nonstops in the next 7 days with service leave between 16:00 and 16:20, local time at Chicago. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate ORD to SUX nonstop?** United Airlines flies UA 5021 nonstop from Chicago (ORD) to Sioux City (SUX), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft. **Does 2LNR show upgrade or award space on ORD to SUX?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on ORD to SUX. The page carries the full ORD to SUX nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [SUX to ORD nonstop flights](https://2lnr.com/routes/sux-ord.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Chicago (ORD)](https://2lnr.com/routes/ord.md), or [every route from Sioux City (SUX)](https://2lnr.com/routes/sux.md). Nonstops from Chicago (ORD) to other airports within 150 miles of Sioux City (SUX): - [Chicago (ORD) to Omaha (OMA)](https://2lnr.com/routes/ord-oma.md), 80 miles from SUX - [Chicago (ORD) to Sioux Falls (FSD)](https://2lnr.com/routes/ord-fsd.md), 83 miles from SUX - [Chicago (ORD) to Lincoln (LNK)](https://2lnr.com/routes/ord-lnk.md), 109 miles from SUX - [Chicago (ORD) to Fort Dodge (FOD)](https://2lnr.com/routes/ord-fod.md), 112 miles from SUX Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full ORD to SUX nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)