Flight number record

UA 2054

United Airlines · Washington to San Diego

Route: IAD → SAN
Departs: 17:55
Flights: 293
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2054, check with United Airlines.

UA 2054 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 293 flights, with a median arrival 7 minutes early.

Set against the rest of the country, UA 2054's record is 8 points better than the US average of 77.6%. That gap is worth roughly 76 fewer late arrivals for every thousand flights.

On time

85.2%

Arrivals under 15 minutes late, of 290 completed flights

Avg delay

68 min

Across delayed arrivals only, not all flights

Cancelled

0.34%

National rate is 1.81%

1 hour+ late

5.5%

National rate is 8.1%

These figures cover 293 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 2054 flies

UA 2054 flies IAD to SAN without a single fixed slot. Its most common scheduled departure was 17:55, used on 165 of 293 flights, with 17:50 (69 flights) and 18:00 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 17:55165 flights56.3%
Departs 17:5069 flights23.5%
Departs 18:0041 flights14.0%

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 17:55 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and UA 2054 runs 17 points better at 85.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

UA 2054 next to IAD to SAN

Every carrier on IAD to SAN combined arrived on time 83.6% of the time across 1,400 flights, so UA 2054 is 2 points ahead of it. United flew 1,040 flights on the same city pair under all its flight numbers, including this one, and those ran 87.1% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 6 points.

UA 2054 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2054thin sample	293	85.2%	68 min	0.34%	A+
All United Airlines on IAD–SAN	1,040	87.1%	65 min	0.38%	A+
All carriers on IAD–SAN	1,400	83.6%	58 min	0.43%	B+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2054 quarter by quarter

Quarter by quarter UA 2054 held fairly steady: 92.7% in Jul–Sep 2025, 83.5% in Oct–Dec 2025, 84.4% in Jan–Mar 2026 and 83.9% in Apr–Jun 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202542 flights92.7%
Oct–Dec 202586 flights83.5%
Jan–Mar 202678 flights84.4%
Apr–Jun 202687 flights83.9%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2054 did best on Tuesday at 93.3% on time and worst on Friday at 77.8%. Each day rests on about 42 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2054 runs late

One category carries most of the weight here. National Airspace System accounts for 44% 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
44%
Carrier
31%
Late-arriving aircraft
17%
Extreme weather
7%

44% 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 1,282 minutes out of 2,906, against a national NAS share of 21%. The split is drawn from 2,906 delay minutes reported on UA 2054.

Cancellations are rare at 0.34%, 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

5.5% 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 2,253 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 two other city pairs in the data, including RSW to IAD (225) and EWR to RSW (19), but none flew often enough under UA 2054 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAD to SAN only.

One caution: this is a thin sample. 293 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 2054

For a booking, UA 2054 has one of the better records a US domestic flight can show: 85.2% on time and 0.34% cancelled. That is a base rate, not a promise about any single 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