Carrier route record
YXOMA→ORD
Republic Airways · Omaha to Chicago
- Flights
- 170
- Period
- July 2025 to June 2026
- Share of route
- 6%
- Carriers
- 6
Historical statistics for July 2025 to June 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 77.6%. The late ones land a little over an hour behind schedule. That rests on 170 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 855 at 75.6% on time.
Envoy Air is the most reliable of the three carriers covered here at 75.6% on time across 855 flights.
Key figures
On time
72.7%
Arrivals under 15 minutes late, of 165 completed flights
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
2.94%
National rate is 1.81%
Whole route
74.5%
Every carrier on OMA to ORD, 3,025 flights
These figures cover 170 flights between July 2025 and June 2026. Beyond the headline rate, 10.9% 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
Republic against every carrier on OMA to ORD
Republic flew 170 of the 3,025 flights on OMA to ORD, about 6% of it. Its 72.7% on time is 2 points worse than the route as a whole, which runs 74.5%. Ranked by on-time rate it is number four of six carriers on the route, where the range runs from American at 76.0% to PSA at 71.4%. 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlinesthin sample | 261 | 76.0% | 126 min | 2.30% | B |
| Envoy Air | 855 | 75.6% | 69 min | 3.39% | B− |
| United Airlines | 1,347 | 74.6% | 92 min | 1.71% | C |
| Republic Airways (this page)thin sample | 170 | 72.7% | 73 min | 2.94% | C |
| SkyWest Airlines | 384 | 71.5% | 80 min | 3.91% | C− |
| PSA Airlinesthin sample | 8 | 71.4% | 55 min | 12.50% | C− |
SkyWest Airlines 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.
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 14 points, against 4 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am28 flights—
- 8am–11am—
- 11am–2pm74 flights65.3%
- 2pm–5pm12 flights—
- 5pm–8pm56 flights79.2%
- 8pm–5am—
Scale runs 55% to 85%. 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 65.3% on time against 79.2% 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 11am–2pm window is the busiest, with 74 flights scheduled in it.
Across the year
Republic on OMA to ORD through the year
- Jul–Sep 202513 flights—
- Oct–Dec 202514 flights—
- Jan–Mar 2026110 flights72.0%
- Apr–Jun 202633 flights71.9%
Scale runs 65% 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 72.7% on time across 170 flights.
Split by quarter, Republic on OMA to ORD logged 13 flights in Jul–Sep 2025, 14 flights in Oct–Dec 2025, 110 flights in Jan–Mar 2026 and 33 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 72.7% annual figure is the one to use.
Delay causes
Why Republic runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 3,271 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 44%Late-arriving aircraft
- 37%National Airspace System
- 19%Carrier
- 1%Extreme weather
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 3,271 reported delay minutes here, that single category outweighs weather by 44 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 3,271 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 1,199 minutes out of 3,271, against a national NAS share of 21%.
Cancellations run at 2.94%, against 1.81% nationally. That is roughly 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 10.9% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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 70.1% on time across 170 flights, within 3 points 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. 170 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 2.94% cancellation rate. A late arrival costs you a little over an hour; 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. 165 completed flights over 12 months sit behind that.
Related
Where to go next
- OMA to ORD, every carrier
- Republic on ORD to OMA, the return leg
- American Airlines on OMA to ORD76.0%
- Envoy Air on OMA to ORD75.6%
- United Airlines on OMA to ORD74.6%
- SkyWest Airlines on OMA to ORD71.5%
- Republic Airways network-wide record
- Chicago O'Hare International (ORD) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.