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DelayAtlas

Carrier route record

YXOMA→ORD

Republic Airways · Omaha to Chicago

Flights
199
Period
September 2025 to August 2026
Share of route
6%
Carriers
6
C−GRADE

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

Republic 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, 5 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 199 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 825 at 75.6% on time.

Envoy Air is the most reliable of the three carriers covered here at 75.6% on time across 825 flights.

Key figures

On time

71.9%

Arrivals under 15 minutes late, of 192 completed flights

Avg delay

84 min

Across delayed arrivals only, not all flights

Cancelled

3.52%

National rate is 1.89%

Whole route

74.2%

Every carrier on OMA to ORD, 3,108 flights

These figures cover 199 flights between September 2025 and August 2026. Beyond the headline rate, 11.5% 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

Republic against every carrier on OMA to ORD

Republic flew 199 of the 3,108 flights on OMA to ORD, about 6% of it. Its 71.9% on time is 2 points worse than the route as a whole, which runs 74.2%. Ranked by on-time rate it is number four of six carriers on the route, where the range runs from American at 80.3% to SkyWest at 71.2%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The three carriers here are closely matched: 4 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 Airways (this page)thin sample19971.9%84 min3.52%C−
PSA Airlinesthin sample871.4%55 min12.50%C−
SkyWest Airlines45271.2%93 min4.42%C−

SkyWest Airlines cancels 4.4% 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 Republic runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against 4 points between the best and worst carrier.

  • 5am–8am32 flights75.0%
  • 8am–11am—
  • 11am–2pm76 flights64.9%
  • 2pm–5pm6 flights—
  • 5pm–8pm85 flights76.8%
  • 8pm–5am—

Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 64.9% on time against 76.8% for 5pm–8pm. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 5pm–8pm window is the busiest, with 85 flights scheduled in it.

Across the year

Republic on OMA to ORD through the year

  • Jul–Sep 20252 flights—
  • Oct–Dec 202514 flights—
  • Jan–Mar 2026110 flights72.0%
  • Apr–Jun 202633 flights71.9%
  • Jul–Sep 202640 flights68.4%

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 71.9% on time across 199 flights.

Quarter by quarter Republic on OMA to ORD held fairly steady: 72.0% in Jan–Mar 2026, 71.9% in Apr–Jun 2026 and 68.4% 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.

Arrival by arrival

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

Republic on OMA to ORD often beats the schedule: 56 of 192 completed flights, 29%, arrived 15 minutes or more early. The 54 late arrivals split 18 under half an hour, 14 between 30 and 60 minutes, and 22 an hour or more.

  • 15+ min early56 flights29.2%
  • Within 15 min82 flights42.7%
  • 15–29 min late18 flights9.4%
  • 30–59 min late14 flights7.3%
  • 1–2 hours late14 flights7.3%
  • 2+ hours late8 flights4.2%

Scale runs 0% to 100%.

Share of 192 completed flights by arrival against schedule.

11 of 52 late departures made up the time and arrived on time, 21% of them. In the other direction, 13 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 Republic on OMA to ORD

The latest arrival of the period was on 15 July 2026, 12 hours 44 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as national airspace system delay.

The latest arrivals of Republic on OMA to ORD in the period
DateArrived late byLargest filed cause
15 July 202612 hours 44 minutesLate-arriving aircraft
7 March 20267 hours 14 minutesCarrier
3 July 20266 hours 3 minutesNational Airspace System
2 April 20264 hours 42 minutesNational Airspace System
2 April 20263 hours 3 minutesNational Airspace System

Delay causes

Why Republic runs late on this route

Late-arriving aircraft accounts for 46% of the 4,517 delay minutes carriers reported here, and the remaining four split what is left.

  • Late-arriving aircraft
    46%
  • National Airspace System
    37%
  • Carrier
    14%
  • Extreme weather
    3%

46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,517 reported delay minutes here, that single category outweighs weather by 18 to one. The split is drawn from 4,517 reported delay minutes.

37% 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 1,662 minutes out of 4,517, against a national NAS share of 21%.

Cancellations run at 3.52%, against 1.89% nationally. That is about one flight in 30 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

11.5% 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.

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 5pm–8pm window matters as much as it does.

The return leg runs 72.9% on time across 199 flights, within about 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. 199 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 Republic on OMA to ORD

Put together: the delay figures matter less here than the 3.52% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5pm–8pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 192 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.