Carrier route record

YXORD→EWR

Republic Airways · Chicago to Newark

Flights: 102
Period: September 2025 to August 2026
Share of route: 2%
Carriers: 5

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

Republic on ORD to EWR draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 102 flights. The strongest carrier on the route with a full sample, Envoy Air, flew 533 at 78.0% on time.

Envoy Air is the most reliable of the three carriers covered here at 78.0% on time across 533 flights.

On time

60.2%

Arrivals under 15 minutes late, of 93 completed flights

Avg delay

83 min

Across delayed arrivals only, not all flights

Cancelled

7.84%

National rate is 1.89%

Whole route

69.8%

Every carrier on ORD to EWR, 6,126 flights

These figures cover 102 flights between September 2025 and August 2026. Beyond the headline rate, 19.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Carrier by carrier

Republic against every carrier on ORD to EWR

Republic flew 102 of the 6,126 flights on ORD to EWR, about 2% of it. Its 60.2% on time is 10 points worse than the route as a whole, which runs 69.8%. Ranked by on-time rate it is number three of five carriers on the route, where the range runs from Envoy at 78.0% to Spirit at 45.6%. One 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 78.0% of the time; American Airlines manages 59.0%. Sample sizes sit next to every figure, because a two-point gap across 926 flights means less than a ten-point one.

On-time performance by carrier on ORD to EWR
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Air	533	78.0%	60 min	5.82%	B−
United Airlines	4,415	72.0%	89 min	2.85%	C
Republic Airways (this page)thin sample	102	60.2%	83 min	7.84%	D−
American Airlines	926	59.0%	87 min	4.97%	D−
Spirit Airlinesthin sample	150	45.6%	79 min	15.33%	F−

Envoy Air cancels 5.8% 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.

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Departure window

When Republic 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 102 flights.

5am–8am—
8am–11am—
11am–2pm62 flights58.6%
2pm–5pm36 flights58.1%
5pm–8pm4 flights—
8pm–5am—

Scale runs 50% to 65%. Rows with fewer than 30 flights show a dash.

The 11am–2pm window is the strongest at 58.6% on time. The full set of windows spans half a point.

Across the year

Republic on ORD to EWR through the year

Oct–Dec 202547 flights50.0%
Jan–Mar 202650 flights68.2%
Apr–Jun 20265 flights—

Scale runs 40% 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 60.2% on time across 102 flights.

Split by quarter, Republic on ORD to EWR logged 47 flights in Oct–Dec 2025, 50 flights in Jan–Mar 2026 and 5 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 60.2% annual figure is the one to use.

Delay causes

Why Republic runs late on this route

Late-arriving aircraft accounts for 53% of the 3,060 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
53%
National Airspace System
27%
Carrier
11%
Extreme weather
9%

53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,060 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 3,060 reported delay minutes.

Cancellations run at 7.84%, against 1.89% nationally. That is about one flight in twelve 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

19.4% 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.

The 719 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 52.8% on time across 102 flights, 7 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 7 points of difference.

One caution: this is a thin sample. 102 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 ORD to EWR

Put together: the delay figures matter less here than the 7.84% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 93 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures