Flight number record

UA 1363

United Airlines · Chicago to Los Angeles

Route: ORD → LAX
Departs: 13:00
Flights: 328
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1363, check with United Airlines.

UA 1363 lands a B+, 5 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 an hour and a half on average. That is a workable record, not a spotless one. That rests on 328 flights, with a median arrival 8 minutes early.

Set against the rest of the country, UA 1363's record is 5 points better than the US average of 77.6%. That gap is worth roughly 50 fewer late arrivals for every thousand flights.

On time

82.6%

Arrivals under 15 minutes late, of 327 completed flights

Avg delay

97 min

Across delayed arrivals only, not all flights

Cancelled

0.30%

National rate is 1.81%

1 hour+ late

6.1%

National rate is 8.1%

These figures cover 328 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 1363 flies

UA 1363 flies ORD to LAX without a single fixed slot. Its most common scheduled departure was 13:00, used on 102 of 328 flights, with 12:54 (72 flights) and 13:05 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 13:00102 flights31.1%
Departs 12:5472 flights22.0%
Departs 13:0555 flights16.8%

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 13:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 1363 runs 4 points better at 82.6%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

UA 1363 next to ORD to LAX

Every carrier on ORD to LAX combined arrived on time 72.5% of the time across 6,961 flights, so UA 1363 is 10 points ahead of it. United flew 3,380 flights on the same city pair under all its flight numbers, including this one, and those ran 76.5% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 4 points.

UA 1363 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1363thin sample	328	82.6%	97 min	0.30%	B+
All United Airlines on ORD–LAX	3,380	76.5%	69 min	0.65%	B+
All carriers on ORD–LAX	6,961	72.5%	73 min	1.59%	C
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1363 quarter by quarter

Quarter by quarter UA 1363 held fairly steady: 87.0% in Jul–Sep 2025, 80.0% in Oct–Dec 2025, 77.5% in Jan–Mar 2026 and 84.6% in Apr–Jun 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights87.0%
Oct–Dec 202555 flights80.0%
Jan–Mar 202690 flights77.5%
Apr–Jun 202691 flights84.6%

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

By weekday, UA 1363 did best on Thursday at 93.6% on time and worst on Tuesday at 75.0%. Each day rests on about 47 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 1363 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 5,542 reported delay minutes.

Late-arriving aircraft
40%
Carrier
39%
Extreme weather
12%
National Airspace System
9%

Extreme weather accounts for 12% 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 2.0 times the usual weather exposure. The split is drawn from 5,542 delay minutes reported on UA 1363.

Cancellations are rare at 0.30%, 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

6.1% 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 an hour and a half, which a normal layover absorbs.

At 1,744 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.

UA 1363 is not only a ORD to LAX flight. It also flew DSM to ORD (271 flights, 80.8% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 328 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.

Other routes flown as UA 1363
Also flown as	Flights	On time	Avg delay	Cancelled	Grade
DSM to ORDthin sample	271	80.8%	78 min	1.85%	B

What to do with this

Booking UA 1363

For a booking, read UA 1363 as 82.6% on time with 0.30% cancelled over 328 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