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DelayAtlas

Carrier route record

OOAVP→ORD

SkyWest Airlines · Avoca to Chicago

Flights
180
Period
September 2025 to August 2026
Share of route
21%
Carriers
2
CGRADE

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

SkyWest on AVP 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, 5 points worse than the national rate of 77.3%. The late ones land about 2.5 hours behind schedule. That rests on 180 flights, with a median arrival right on schedule.

The national on-time rate over the same period is 77.3%, so SkyWest on AVP to ORD runs 5 points behind the country as a whole. Across a thousand flights that is about 45 extra late arrivals.

Key figures

On time

72.8%

Arrivals under 15 minutes late, of 173 completed flights

Avg delay

150 min

Across delayed arrivals only, not all flights

Cancelled

2.78%

National rate is 1.89%

Whole route

76.4%

Every carrier on AVP to ORD, 846 flights

These figures cover 180 flights between September 2025 and August 2026. Beyond the headline rate, 14.5% 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 AVP to ORD

SkyWest flew 180 of the 846 flights on AVP to ORD, about 21% of it. Its 72.8% on time is 4 points worse than the route as a whole, which runs 76.4%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Envoy at 77.4% to SkyWest at 72.8%.

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 AVP to ORD
AirlineFlightsOn timeAvg delayCancelledGrade
Envoy Air66677.4%70 min2.10%B
SkyWest Airlines (this page)thin sample18072.8%150 min2.78%C

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 is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 180 flights.

  • 5am–8am40 flights79.5%
  • 8am–11am—
  • 11am–2pm—
  • 2pm–5pm126 flights70.0%
  • 5pm–8pm14 flights—
  • 8pm–5am—

Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 79.5% of the time, against 70.0% for the afternoon window. That is 10 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 126 flights scheduled in it.

Across the year

SkyWest on AVP to ORD through the year

  • Jul–Sep 20254 flights—
  • Oct–Dec 202536 flights75.0%
  • Jan–Mar 202656 flights77.8%
  • Apr–Jun 202684 flights68.7%

Scale runs 60% to 85%. 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 72.8% on time across 180 flights.

Quarter by quarter SkyWest on AVP to ORD held fairly steady: 75.0% in Oct–Dec 2025, 77.8% in Jan–Mar 2026 and 68.7% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Arrival by arrival

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

SkyWest on AVP to ORD often beats the schedule: 48 of 173 completed flights, 28%, arrived 15 minutes or more early. When SkyWest on AVP to ORD is late it tends to be very late: 25 of its 47 late arrivals were an hour or more behind, and 15 were two hours or more.

  • 15+ min early48 flights27.7%
  • Within 15 min78 flights45.1%
  • 15–29 min late13 flights7.5%
  • 30–59 min late9 flights5.2%
  • 1–2 hours late10 flights5.8%
  • 2+ hours late15 flights8.7%

Scale runs 0% to 100%.

Share of 173 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 41 departures that left 15 minutes late or more, only 3 made it up before arrival. In the other direction, 9 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 AVP to ORD

The latest arrival of the period was on 31 May 2026, 22 hours 30 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. Three of the five worst days fell in May 2026.

The latest arrivals of SkyWest on AVP to ORD in the period
DateArrived late byLargest filed cause
31 May 202622 hours 30 minutesLate-arriving aircraft
2 April 202619 hours 37 minutesNational Airspace System
22 May 20265 hours 57 minutesLate-arriving aircraft
17 February 20265 hours 55 minutesCarrier
13 May 20265 hours 49 minutesCarrier

Delay causes

Why SkyWest runs late on this route

Late-arriving aircraft accounts for 49% of the 7,064 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    49%
  • National Airspace System
    28%
  • Carrier
    20%
  • Extreme weather
    3%

49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 7,064 reported delay minutes here, that single category outweighs weather by 16 to one. The split is drawn from 7,064 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 79.5% on time here.

Cancellations run at 2.78%, against 1.89% nationally. That is roughly one flight in 40 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

14.5% 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.

The 632 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.

The return leg is a different operation and performs like one: it runs 63.1% on time across 180 flights, 10 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 10 points of difference.

One caution: this is a thin sample. 180 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 AVP to ORD

Put together: treat all of this as provisional. 180 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 72.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 173 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.