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DelayAtlas

Carrier route record

UACIDORD

United Airlines · Cedar Rapids to Chicago

Flights
457
Period
July 2025 to June 2026
Share of route
17%
Carriers
5
BGRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with United Airlines.

United on CID to ORD sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 457 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 965 at 75.8% on time.

The US average over the same twelve months is 77.6%, so there is little to separate United on CID to ORD from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

Key figures

On time

75.4%

Arrivals under 15 minutes late, of 447 completed flights

Avg delay

78 min

Across delayed arrivals only, not all flights

Cancelled

2.19%

National rate is 1.81%

Whole route

72.1%

Every carrier on CID to ORD, 2,715 flights

These figures cover 457 flights between July 2025 and June 2026. Beyond the headline rate, 8.1% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

United against every carrier on CID to ORD

United flew 457 of the 2,715 flights on CID to ORD, about 17% of it. Its 75.4% on time is 3 points better than the route as a whole, which runs 72.1%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from American at 86.7% to SkyWest at 65.6%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. Envoy Air arrives on time 75.8% of the time; SkyWest Airlines manages 65.6%. Sample sizes sit next to every figure, because a two-point gap across 812 flights means less than a ten-point one.

On-time performance by carrier on CID to ORD
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlinesthin sample12686.7%58 min4.76%A−
Envoy Air96575.8%70 min2.69%B
United Airlines (this page)45775.4%78 min2.19%B
Republic Airwaysthin sample35466.9%79 min6.21%C−
SkyWest Airlines81265.6%115 min4.56%C−

SkyWest Airlines cancels 4.6% 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.

Departure window

When United runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 15 points, against 10 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am66 flights87.7%
  • 8am–11am357 flights73.0%
  • 11am–2pm34 flights76.5%
  • 2pm–5pm
  • 5pm–8pm
  • 8pm–5am

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 87.7% of the time, against 73.0% for the morning window. That is 15 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 357 flights scheduled in it.

Across the year

United on CID to ORD through the year

On-time rate by calendar month70JF80MA83M77J77J87A72S71OND
Darker means more delays. Figures are on-time percentages.August best, January worst

January is the weak month at 70.0% on time, against 87.1% in August. 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. June was the busiest month here, with 75 flights.

Across the week, Saturday is the strongest day at 82.8% on time and Thursday the weakest at 70.8%. 12 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week75.0Mon76.5Tue78.8Wed70.8Thu72.1Fri82.8Sat71.2Sun
Monday: 75.0 percent on time. Tuesday: 76.5 percent on time. Wednesday: 78.8 percent on time. Thursday: 70.8 percent on time. Friday: 72.1 percent on time. Saturday: 82.8 percent on time. Sunday: 71.2 percent on time

Delay causes

Why United 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 8,536 reported delay minutes.

  • Extreme weather
    36%
  • National Airspace System
    32%
  • Carrier
    20%
  • Late-arriving aircraft
    12%

Extreme weather accounts for 36% 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 5.7 times the usual weather exposure. The split is drawn from 8,536 reported delay minutes.

32% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 2,767 minutes out of 8,536, against a national NAS share of 21%.

Cancellations sit at 2.19% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and stage length

What a delay here costs

8.1% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

At 196 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 63.4% on time across 456 flights, 12 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 12 points of difference.

One caution: this is a thin sample. 457 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 United on CID to ORD

Put together: treat all of this as provisional. 457 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 75.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 447 completed flights over 12 months sit behind that.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.