Carrier route record

YXEWR→ORD

Republic Airways · Newark to Chicago

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 EWR to ORD earns an F−, which is as low as this site's scale goes for a reason. Only 52.8% of flights arrive inside the 15-minute window, 25 points worse than the national rate of 77.3%. Late arrivals average an hour and a half. Treat any tight connection here as a coin flip. That rests on 102 flights. The strongest carrier on the route with a full sample, American Airlines, flew 924 at 76.8% on time.

American Airlines is the most reliable of the three carriers covered here at 76.8% on time across 924 flights.

On time

52.8%

Arrivals under 15 minutes late, of 89 completed flights

Avg delay

82 min

Across delayed arrivals only, not all flights

Cancelled

11.76%

National rate is 1.89%

Whole route

70.7%

Every carrier on EWR to ORD, 6,123 flights

These figures cover 102 flights between September 2025 and August 2026. Beyond the headline rate, 23.6% 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 EWR to ORD

Republic flew 102 of the 6,123 flights on EWR to ORD, about 2% of it. Its 52.8% on time is 18 points worse than the route as a whole, which runs 70.7%. Ranked by on-time rate it is number four of five carriers on the route, where the range runs from American at 76.8% to Spirit at 51.6%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

The choice of carrier is not cosmetic here. American Airlines arrives on time 76.8% of the time; United Airlines manages 70.3%. Sample sizes sit next to every figure, because a two-point gap across 4,415 flights means less than a ten-point one.

On-time performance by carrier on EWR to ORD
Airline	Flights	On time	Avg delay	Cancelled	Grade
American Airlines	924	76.8%	116 min	4.76%	B−
Envoy Air	533	72.2%	84 min	6.19%	C−
United Airlines	4,415	70.3%	80 min	2.83%	C
Republic Airways (this page)thin sample	102	52.8%	82 min	11.76%	F−
Spirit Airlinesthin sample	149	51.6%	102 min	16.78%	F−

Envoy Air cancels 6.2% 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.

There are not enough flights in each departure window to split Republic's EWR to ORD record by time of day without the percentages moving on noise. The headline rate of 52.8% is the reliable figure here.

Across the year

Republic on EWR to ORD through the year

Oct–Dec 202547 flights40.5%
Jan–Mar 202650 flights63.6%
Apr–Jun 20265 flights—

Scale runs 30% to 70%. 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 52.8% on time across 102 flights.

Split by quarter, Republic on EWR to ORD 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 52.8% annual figure is the one to use.

Delay causes

Why Republic runs late on this route

Late-arriving aircraft accounts for 65% of the 3,459 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
65%
National Airspace System
30%
Carrier
4%
Extreme weather
1%

65% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,459 reported delay minutes here, that single category outweighs weather by 65 to one. The split is drawn from 3,459 reported delay minutes.

Cancellations run at 11.76%, against 1.89% nationally. That is about one flight in nine 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

23.6% 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 60.2% on time across 102 flights, 7 points above 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 EWR to ORD

Put together: the delay figures matter less here than the 11.76% 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. 89 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