Flight number record

UA 300

United Airlines · San Francisco to Honolulu

Route: SFO → HNL
Departs: 13:55
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 300, check with United Airlines.

UA 300 lands a B+, 6 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 365 flights, with a median arrival 8 minutes early.

Set against the rest of the country, UA 300's record is 6 points better than the US average of 77.6%. That gap is worth roughly 59 fewer late arrivals for every thousand flights.

On time

83.5%

Arrivals under 15 minutes late, of 363 completed flights

Avg delay

64 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.81%

1 hour+ late

5.8%

National rate is 8.1%

These figures cover 365 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 300 flies

UA 300 flies SFO to HNL without a single fixed slot. Its most common scheduled departure was 13:55, used on 162 of 365 flights, with 13:45 (53 flights) and 14:05 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:55162 flights44.4%
Departs 13:4553 flights14.5%
Departs 14:0549 flights13.4%

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 13:55 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 300 runs 5 points better at 83.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

UA 300 next to SFO to HNL

Every carrier on SFO to HNL combined arrived on time 81.4% of the time across 2,426 flights, so UA 300 is 2 points ahead of it. United flew 1,742 flights on the same city pair under all its flight numbers, including this one, and those ran 86.5% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 5 points.

UA 300 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 300	365	83.5%	64 min	0.55%	B+
All United Airlines on SFO–HNL	1,742	86.5%	72 min	0.29%	A+
All carriers on SFO–HNL	2,426	81.4%	64 min	0.95%	B+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 300 quarter by quarter

Quarter by quarter UA 300 held fairly steady: 83.3% in Jul–Sep 2025, 84.8% in Oct–Dec 2025, 85.6% in Jan–Mar 2026 and 80.2% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights83.3%
Oct–Dec 202592 flights84.8%
Jan–Mar 202690 flights85.6%
Apr–Jun 202691 flights80.2%

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, UA 300 did best on Thursday at 90.2% on time and worst on Saturday at 76.9%. Each day rests on about 52 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 300 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 50% of the 3,820 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.

Late-arriving aircraft
50%
Carrier
36%
National Airspace System
14%

50% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 3,820 reported delay minutes here, that single category outweighs weather by 50 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 3,820 delay minutes reported on UA 300.

Cancellations are rare at 0.55%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

5.8% 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 about an hour, which a normal layover absorbs.

At 2,398 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 one other city pair in the data, including ATL to SFO (3), but none flew often enough under UA 300 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to SFO to HNL only.

One caution: this is a thin sample. 365 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 300

For a booking, read UA 300 as 83.5% on time with 0.55% cancelled over 365 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