Flight number record

UA 563

United Airlines · Chicago to Newark

Route: ORD → EWR
Departs: 07:10
Flights: 356
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 563, check with United Airlines.

UA 563 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 50 minutes. That rests on 356 flights, with a median arrival 13 minutes early.

Set against the rest of the country, UA 563's record is 13 points better than the US average of 77.6%. That gap is worth roughly 125 fewer late arrivals for every thousand flights.

On time

90.1%

Arrivals under 15 minutes late, of 352 completed flights

Avg delay

52 min

Across delayed arrivals only, not all flights

Cancelled

1.12%

National rate is 1.81%

1 hour+ late

3.1%

National rate is 8.1%

These figures cover 356 flights between July 2025 and June 2026. The median arrival is 13 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When UA 563 flies

UA 563 flies ORD to EWR without a single fixed slot. Its most common scheduled departure was 07:10, used on 239 of 356 flights, with 07:15 (63 flights) and 07:00 (53 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:10239 flights67.1%
Departs 07:1563 flights17.7%
Departs 07:0053 flights14.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 07:10 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 563 runs level with that at 90.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

UA 563 next to ORD to EWR

Every carrier on ORD to EWR combined arrived on time 69.4% of the time across 6,044 flights, so UA 563 is 21 points ahead of it. United flew 4,391 flights on the same city pair under all its flight numbers, including this one, and those ran 71.3% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 11 points.

UA 563 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 563thin sample	356	90.1%	52 min	1.12%	A
All United Airlines on ORD–EWR	4,391	71.3%	86 min	2.37%	C
All carriers on ORD–EWR	6,044	69.4%	83 min	3.26%	C−
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 563 quarter by quarter

Quarter by quarter UA 563 held fairly steady: 89.1% in Jul–Sep 2025, 85.6% in Oct–Dec 2025, 91.1% in Jan–Mar 2026 and 94.5% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights89.1%
Oct–Dec 202591 flights85.6%
Jan–Mar 202682 flights91.1%
Apr–Jun 202691 flights94.5%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, UA 563 did best on Wednesday at 96.1% on time and worst on Monday at 82.4%. Each day rests on about 51 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 563 runs late

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 1,830 reported delay minutes.

National Airspace System
40%
Carrier
38%
Late-arriving aircraft
11%
Extreme weather
11%

The largest share of delay minutes, 38%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 695 of the 1,830 delay minutes reported here. The split is drawn from 1,830 delay minutes reported on UA 563.

Cancellations sit at 1.12% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 3.1% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on three other city pairs in the data, including LAX to TPA (4), SFO to STL (3) and PBI to IAH (1), but none flew often enough under UA 563 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to EWR only.

One caution: this is a thin sample. 356 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 UA 563

For a booking, UA 563 has one of the better records a US domestic flight can show: 90.1% on time and 1.12% cancelled. That is a base rate, not a promise about any single day.

Where to go next

A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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.

Key figures