Flight number record

UA 2389

United Airlines · New York to Chicago

Route: LGA → ORD
Departs: 06:10
Flights: 339
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2389, check with United Airlines.

UA 2389 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 11 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 339 flights, with a median arrival 7 minutes early.

Set against the rest of the country, UA 2389's record is 11 points better than the US average of 77.6%. That gap is worth roughly 105 fewer late arrivals for every thousand flights.

On time

88.1%

Arrivals under 15 minutes late, of 328 completed flights

Avg delay

57 min

Across delayed arrivals only, not all flights

Cancelled

2.95%

National rate is 1.81%

1 hour+ late

1.8%

National rate is 8.1%

These figures cover 339 flights between July 2025 and June 2026. The median arrival is 7 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 2389 flies

UA 2389 flies LGA to ORD without a single fixed slot. Its most common scheduled departure was 06:10, used on 115 of 339 flights, with 06:15 (83 flights) and 06:25 (72 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:10115 flights33.9%
Departs 06:1583 flights24.5%
Departs 06:2572 flights21.2%

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 06:10 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 2389 runs level with that at 88.1%. 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 2389 next to LGA to ORD

Every carrier on LGA to ORD combined arrived on time 67.3% of the time across 11,625 flights, so UA 2389 is 21 points ahead of it. United flew 4,662 flights on the same city pair under all its flight numbers, including this one, and those ran 66.7% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 9 points.

UA 2389 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2389thin sample	339	88.1%	57 min	2.95%	A
All United Airlines on LGA–ORD	4,662	66.7%	88 min	3.69%	C−
All carriers on LGA–ORD	11,625	67.3%	89 min	4.94%	C−
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2389 quarter by quarter

UA 2389 did not run the same all year. Its best quarter was Jul–Sep 2025 at 95.6% on time and its weakest Oct–Dec 2025 at 74.7%, a swing of 21 points on roughly 85 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202592 flights95.6%
Oct–Dec 202577 flights74.7%
Jan–Mar 202679 flights86.3%
Apr–Jun 202691 flights93.3%

Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2389 ranged from 83.0% on Sunday to 93.9% on Wednesday. With about 48 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why UA 2389 runs late

One category carries most of the weight here. National Airspace System accounts for 42% of the 2,202 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.

National Airspace System
42%
Carrier
24%
Late-arriving aircraft
19%
Extreme weather
15%

Extreme weather accounts for 15% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 2,202 delay minutes reported on UA 2389.

Cancellations run at 2.95%, 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 routes

What a delay on this flight costs

Badly late arrivals are rare here: only 1.8% 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 733 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 ORD to CLE (207), ORD to RSW (117) and ORD to AUS (20), but none flew often enough under UA 2389 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to ORD only.

One caution: this is a thin sample. 339 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 2389

For a booking, the cancellation rate is the figure to plan around on UA 2389: 2.95% of its 339 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.

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