Flight number record

UA 1330

United Airlines · Newark to Seattle

Route: EWR → SEA
Departs: 07:45
Flights: 319
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1330, check with United Airlines.

UA 1330 lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 45 minutes on average. That is a workable record, not a spotless one. That rests on 319 flights, with a median arrival 8 minutes early.

On time

79.9%

Arrivals under 15 minutes late, of 314 completed flights

Avg delay

46 min

Across delayed arrivals only, not all flights

Cancelled

1.25%

National rate is 1.81%

1 hour+ late

5.4%

National rate is 8.1%

These figures cover 319 flights between July 2025 and June 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.

Schedule

When UA 1330 flies

UA 1330 flies EWR to SEA without a single fixed slot. Its most common scheduled departure was 07:45, used on 53 of 319 flights, with 07:30 (42 flights) and 08:50 (40 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:4553 flights16.6%
Departs 07:3042 flights13.2%
Departs 08:5040 flights12.5%

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 07:45 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 1330 runs 9 points worse at 79.9%. 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 1330 next to EWR to SEA

Every carrier on EWR to SEA combined arrived on time 73.5% of the time across 2,234 flights, so UA 1330 is 6 points ahead of it. United flew 997 flights on the same city pair under all its flight numbers, including this one, and those ran 77.1% on time. Across its whole network United Airlines managed 79.0%, close to this flight's figure.

UA 1330 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1330thin sample	319	79.9%	46 min	1.25%	B
All United Airlines on EWR–SEA	997	77.1%	61 min	1.00%	B
All carriers on EWR–SEA	2,234	73.5%	64 min	2.01%	C
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1330 quarter by quarter

UA 1330 did not run the same all year. Its best quarter was Jul–Sep 2025 at 92.7% on time and its weakest Jan–Mar 2026 at 72.1%, a swing of 21 points on roughly 80 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 202555 flights92.7%
Oct–Dec 202592 flights72.5%
Jan–Mar 202690 flights72.1%
Apr–Jun 202682 flights87.8%

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

By weekday, UA 1330 did best on Wednesday at 88.4% on time and worst on Saturday at 72.7%. Each day rests on about 46 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1330 runs late

One category carries most of the weight here. National Airspace System accounts for 53% of the 2,906 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
53%
Carrier
24%
Late-arriving aircraft
22%
Extreme weather
1%

53% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,542 minutes out of 2,906, against a national NAS share of 21%. The split is drawn from 2,906 delay minutes reported on UA 1330.

Cancellations sit at 1.25% against a national 1.81%, which is ordinary. Diversions add another 0.31%.

Connections and routes

What a delay on this flight costs

5.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 45 minutes, which a normal layover absorbs.

At 2,402 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 four other city pairs in the data, including SEA to SFO (31), EWR to LAX (23) and SAV to EWR (20), but none flew often enough under UA 1330 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to EWR to SEA only.

One caution: this is a thin sample. 319 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 1330

For a booking, read UA 1330 as 79.9% on time with 1.25% cancelled over 319 flights. Those are rates from the past twelve months, not a forecast for any particular 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