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DelayAtlas

Carrier route record

OOOMA→ORD

SkyWest Airlines · Omaha to Chicago

Flights
452
Period
September 2025 to August 2026
Share of route
15%
Carriers
6
C−GRADE

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

SkyWest on OMA to ORD sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 452 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 825 at 75.6% on time.

The national on-time rate over the same period is 77.3%, so SkyWest on OMA to ORD runs 6 points behind the country as a whole. Across a thousand flights that is about 61 extra late arrivals.

Key figures

On time

71.2%

Arrivals under 15 minutes late, of 431 completed flights

Avg delay

93 min

Across delayed arrivals only, not all flights

Cancelled

4.42%

National rate is 1.89%

Whole route

74.2%

Every carrier on OMA to ORD, 3,108 flights

These figures cover 452 flights between September 2025 and August 2026. Beyond the headline rate, 14.4% 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 OMA to ORD

SkyWest flew 452 of the 3,108 flights on OMA to ORD, about 15% of it. Its 71.2% on time is 3 points worse than the route as a whole, which runs 74.2%. Ranked by on-time rate it is last of six carriers on the route, where the range runs from American at 80.3% to SkyWest at 71.2%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The two carriers here are closely matched: 2 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on OMA to ORD
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlinesthin sample24380.3%82 min1.65%B
Envoy Air82575.6%75 min3.88%B−
United Airlines1,38173.6%95 min2.17%C
Republic Airwaysthin sample19971.9%84 min3.52%C−
PSA Airlinesthin sample871.4%55 min12.50%C−
SkyWest Airlines (this page)45271.2%93 min4.42%C−

Envoy Air cancels 3.9% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

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 28 points, against 2 points between the best and worst carrier.

  • 5am–8am98 flights85.1%
  • 8am–11am56 flights72.2%
  • 11am–2pm188 flights69.2%
  • 2pm–5pm32 flights56.7%
  • 5pm–8pm77 flights62.9%
  • 8pm–5am1 flights—

Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 85.1% of the time, against 56.7% for the afternoon window. That is 28 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 11am–2pm window is the busiest, with 188 flights scheduled in it.

Across the year

SkyWest on OMA to ORD through the year

  • Jul–Sep 202524 flights—
  • Oct–Dec 2025115 flights67.3%
  • Jan–Mar 202630 flights70.0%
  • Apr–Jun 2026133 flights71.2%
  • Jul–Sep 2026150 flights71.1%

Scale runs 60% to 75%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 71.2% on time across 452 flights.

Quarter by quarter SkyWest on OMA to ORD held fairly steady: 67.3% in Oct–Dec 2025, 70.0% in Jan–Mar 2026, 71.2% in Apr–Jun 2026 and 71.1% in Jul–Sep 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Across the week, Wednesday is the strongest day at 78.6% on time and Sunday the weakest at 60.3%, a spread of 18 points.

On-time rate by day of the week74.6Mon69.6Tue78.6Wed69.7Thu72.7Fri73.8Sat60.3Sun
Monday: 74.6 percent on time. Tuesday: 69.6 percent on time. Wednesday: 78.6 percent on time. Thursday: 69.7 percent on time. Friday: 72.7 percent on time. Saturday: 73.8 percent on time. Sunday: 60.3 percent on time

Arrival by arrival

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

The 124 late arrivals split 31 under half an hour, 31 between 30 and 60 minutes, and 62 an hour or more.

  • 15+ min early80 flights18.6%
  • Within 15 min227 flights52.7%
  • 15–29 min late31 flights7.2%
  • 30–59 min late31 flights7.2%
  • 1–2 hours late28 flights6.5%
  • 2+ hours late34 flights7.9%

Scale runs 0% to 100%.

Share of 431 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 113 departures that left 15 minutes late or more, only 13 made it up before arrival. In the other direction, 24 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 ORD.

The worst days

Worst days for SkyWest on OMA to ORD

The latest arrival of the period was on 18 August 2026, 10 hours 38 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across August, July, January and November, with no single month standing out.

The latest arrivals of SkyWest on OMA to ORD in the period
DateArrived late byLargest filed cause
18 August 202610 hours 38 minutesCarrier
3 July 20266 hours 4 minutesExtreme weather
1 January 20265 hours 45 minutesLate-arriving aircraft
10 November 20255 hours 42 minutesNational Airspace System
9 August 20264 hours 49 minutesNational Airspace System

Delay causes

Why SkyWest runs late on this route

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 12,000 reported delay minutes.

  • Late-arriving aircraft
    41%
  • National Airspace System
    26%
  • Carrier
    25%
  • Extreme weather
    8%

41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 12,000 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 11,508 reported delay minutes.

The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 85.1% on time here.

Cancellations run at 4.42%, against 1.89% nationally. That is roughly 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

14.4% 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 416 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 5am–8am window matters as much as it does.

The return leg is a different operation and performs like one: it runs 63.7% on time across 452 flights, 8 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 8 points of difference.

One caution: this is a thin sample. 452 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 OMA to ORD

Put together: the delay figures matter less here than the 4.42% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 431 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.