Flight number record

UA 2115

United Airlines · Newark to San Francisco

Route: EWR → SFO
Departs: 06:00
Flights: 362
Period: September 2025 to August 2026

Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2115, check with United Airlines.

UA 2115 lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 362 flights, with a median arrival 8 minutes early.

Set against the rest of the country, UA 2115's record is 6 points better than the US average of 77.3%. That gap is worth roughly 59 fewer late arrivals for every thousand flights.

On time

83.2%

Arrivals under 15 minutes late, of 351 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

2.76%

National rate is 1.89%

1 hour+ late

4.6%

National rate is 8.3%

These figures cover 362 flights between September 2025 and August 2026. The median arrival is 8 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.

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Schedule

When UA 2115 flies

UA 2115 is scheduled to leave Newark (EWR) at 06:00 local time and reach San Francisco (SFO) at 09:09. That slot held for 361 of the 362 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 06:00361 flights99.7%

Scale runs 0% to 100%.

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

A 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 2115 runs 6 points worse at 83.2%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

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Against the route

UA 2115 next to EWR to SFO

Every carrier on EWR to SFO combined arrived on time 67.9% of the time across 4,349 flights, so UA 2115 is 15 points ahead of it. United flew 3,863 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 78.8%, which this flight beats by 4 points.

UA 2115 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2115thin sample	362	83.2%	73 min	2.76%	B
All United Airlines on EWR–SFO	3,863	66.7%	90 min	2.43%	C
All carriers on EWR–SFO	4,349	67.9%	88 min	2.30%	C
United Airlines, whole network	830,825	78.8%	73 min	1.02%	B

Across the year

UA 2115 quarter by quarter

UA 2115 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.6% on time and its weakest Oct–Dec 2025 at 78.3%, a swing of 10 points on roughly 91 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 202530 flights—
Oct–Dec 202592 flights78.3%
Jan–Mar 202689 flights83.1%
Apr–Jun 202690 flights88.6%
Jul–Sep 202661 flights84.7%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2115 ranged from 79.6% on Sunday to 86.0% on Wednesday. With about 52 flights behind each day, a spread of 6 points is inside normal variation, so the day you fly is not worth changing for this flight.

Arrival by arrival

How late UA 2115 runs when it is late

UA 2115 often beats the schedule: 126 of 351 completed flights, 36%, arrived 15 minutes or more early. Most of the lateness is short. 33 of the 59 late arrivals were under half an hour behind, and 16 reached an hour or more.

15+ min early126 flights35.9%
Within 15 min166 flights47.3%
15–29 min late33 flights9.4%
30–59 min late10 flights2.8%
1–2 hours late6 flights1.7%
2+ hours late10 flights2.8%

Scale runs 0% to 100%.

Share of 351 completed flights by arrival against schedule.

10 of 38 late departures made up the time and arrived on time, 26% of them. In the other direction, 31 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SFO.

The worst days

Worst days for UA 2115

The latest arrival of the period was on 21 July 2026, 15 hours 8 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across July, March, January, November and April, with no single month standing out.

The latest arrivals of UA 2115 in the period
Date	Arrived late by	Largest filed cause
21 July 2026	15 hours 8 minutes	Carrier
8 March 2026	5 hours 21 minutes	Late-arriving aircraft
29 January 2026	4 hours 10 minutes	Carrier
9 November 2025	3 hours 59 minutes	National Airspace System
28 April 2026	3 hours 43 minutes	Late-arriving aircraft

Delay causes

Why UA 2115 runs late

Carrier accounts for 54% of the 4,295 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
54%
National Airspace System
26%
Late-arriving aircraft
18%
Extreme weather
2%

The largest share of delay minutes, 54%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,321 of the 4,295 delay minutes reported here. The split is drawn from 4,295 delay minutes reported on UA 2115.

Cancellations run at 2.76%, against 1.89% nationally. That is roughly one flight in 40 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 4.6% land an hour or more behind schedule, against 8.3% 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.

At 2,565 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

The same number turns up on three other city pairs in the data, including SFO to BUR (156), SFO to PHX (72) and SFO to PDX (24), but none flew often enough under UA 2115 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to EWR to SFO only.

One caution: this is a thin sample. 362 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 2115

For a booking, the cancellation rate is the figure to plan around on UA 2115: 2.76% of its 362 scheduled flights did not operate. A late arrival costs a little over 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures