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DelayAtlas

Carrier route record

OOORD→FSD

SkyWest Airlines · Chicago to Sioux Falls

Flights
964
Period
September 2025 to August 2026
Share of route
54%
Carriers
5
D−GRADE

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on ORD to FSD carries a cancellation problem, not just a delay problem: 3.7% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, a little over half of flights arrive on time, worth a D− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 964 flights, with a median arrival 3 minutes late.

The national on-time rate over the same period is 77.3%, so SkyWest on ORD to FSD runs 16 points behind the country as a whole. Across a thousand flights that is about 161 extra late arrivals.

Key figures

On time

61.2%

Arrivals under 15 minutes late, of 927 completed flights

Avg delay

103 min

Across delayed arrivals only, not all flights

Cancelled

3.73%

National rate is 1.89%

Whole route

63.5%

Every carrier on ORD to FSD, 1,790 flights

These figures cover 964 flights between September 2025 and August 2026. Beyond the headline rate, 20.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Carrier by carrier

SkyWest against every carrier on ORD to FSD

SkyWest flew 964 of the 1,790 flights on ORD to FSD, most of the route. Its 61.2% on time is 2 points worse than the route as a whole, which runs 63.5%. Ranked by on-time rate it is number four of five carriers on the route, where the range runs from PSA at 73.3% to United at 59.1%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on ORD to FSD
AirlineFlightsOn timeAvg delayCancelledGrade
PSA Airlinesthin sample3073.3%81 min0.00%C+
Envoy Air39072.5%52 min3.85%C−
Republic Airwaysthin sample6063.8%59 min3.33%D−
SkyWest Airlines (this page)96461.2%103 min3.73%D−
United Airlinesthin sample34659.1%67 min2.89%D

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 24 points, against half a point between the best and worst carrier.

  • 5am–8am—
  • 8am–11am276 flights67.6%
  • 11am–2pm81 flights64.9%
  • 2pm–5pm346 flights61.3%
  • 5pm–8pm46 flights43.2%
  • 8pm–5am215 flights54.7%

Scale runs 35% to 75%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 43.2% on time, against 67.6% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 346 flights scheduled in it.

Across the year

SkyWest on ORD to FSD through the year

On-time rate by calendar month44J62F—M—A81M59J69J59A75S56O69N40D
Darker means more delays. Figures are on-time percentages.May best, December worst

December is the weak month at 39.8% on time, against 80.5% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. November was the busiest month here, with 128 flights.

Across the week, Saturday is the strongest day at 68.9% on time and Sunday the weakest at 48.6%, a spread of 20 points.

On-time rate by day of the week61.3Mon63.2Tue63.0Wed58.2Thu66.4Fri68.9Sat48.6Sun
Monday: 61.3 percent on time. Tuesday: 63.2 percent on time. Wednesday: 63.0 percent on time. Thursday: 58.2 percent on time. Friday: 66.4 percent on time. Saturday: 68.9 percent on time. Sunday: 48.6 percent on time

Arrival by arrival

How late SkyWest on ORD to FSD runs when it is late

When SkyWest on ORD to FSD is late it tends to be very late: 185 of its 360 late arrivals were an hour or more behind, and 79 were two hours or more.

  • 15+ min early186 flights20.1%
  • Within 15 min381 flights41.1%
  • 15–29 min late70 flights7.6%
  • 30–59 min late105 flights11.3%
  • 1–2 hours late106 flights11.4%
  • 2+ hours late79 flights8.5%

Scale runs 0% to 100%.

Share of 927 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 332 departures that left 15 minutes late or more, only 31 made it up before arrival. In the other direction, 59 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at FSD.

The worst days

Worst days for SkyWest on ORD to FSD

The latest arrival of the period was on 21 January 2026, 21 hours behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in December 2025.

The latest arrivals of SkyWest on ORD to FSD in the period
DateArrived late byLargest filed cause
21 January 202621 hoursCarrier
14 December 202518 hours 36 minutesCarrier
18 December 202516 hours 50 minutesCarrier
17 September 202515 hours 52 minutesCarrier
30 December 202513 hours 34 minutesCarrier

Delay causes

Why SkyWest runs late on this route

Carrier accounts for 46% of the 37,000 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    46%
  • Late-arriving aircraft
    21%
  • Extreme weather
    20%
  • National Airspace System
    13%

Extreme weather accounts for 20% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.3 times the usual weather exposure. The split is drawn from 37,029 reported delay minutes.

The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 17,000 of the 37,000 delay minutes reported here.

Cancellations run at 3.73%, against 1.89% nationally. That is about one flight in 25 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and stage length

What a delay here costs

20.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.

At 462 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8am–11am window matters as much as it does.

The return leg runs 61.1% on time across 964 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 964 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking SkyWest on ORD to FSD

Put together: the delay figures matter less here than the 3.73% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 927 completed flights over 12 months sit behind that.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.