Flight number record

UA 2098

United Airlines · Boston to Washington

Route: BOS → IAD
Departs: 09:30
Flights: 316
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2098, check with United Airlines.

UA 2098 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 316 flights, with a median arrival 11 minutes early.

Set against the rest of the country, UA 2098's record is 13 points better than the US average of 77.6%. That gap is worth roughly 133 fewer late arrivals for every thousand flights.

On time

90.9%

Arrivals under 15 minutes late, of 309 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

2.22%

National rate is 1.81%

1 hour+ late

2.3%

National rate is 8.1%

These figures cover 316 flights between July 2025 and June 2026. The median arrival is 11 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 2098 flies

UA 2098 is scheduled to leave Boston (BOS) at 09:30 local time and reach Washington (IAD) at 11:13. That slot held for 309 of the 316 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.

Departs 09:30309 flights97.8%

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 09:30 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 2098 runs 7 points better at 90.9%. 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 2098 next to BOS to IAD

Every carrier on BOS to IAD combined arrived on time 83.0% of the time across 1,464 flights, so UA 2098 is 8 points ahead of it. United flew 1,461 flights on the same city pair under all its flight numbers, including this one, and those ran 83.1% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 12 points.

UA 2098 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2098thin sample	316	90.9%	67 min	2.22%	A
All United Airlines on BOS–IAD	1,461	83.1%	76 min	2.05%	B
All carriers on BOS–IAD	1,464	83.0%	76 min	2.05%	B
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2098 quarter by quarter

Quarter by quarter UA 2098 held fairly steady: 90.7% in Jul–Sep 2025, 93.5% in Oct–Dec 2025, 90.5% in Jan–Mar 2026 and 88.9% 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 202543 flights90.7%
Oct–Dec 202592 flights93.5%
Jan–Mar 202690 flights90.5%
Apr–Jun 202691 flights88.9%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2098 did best on Wednesday at 100.0% on time and worst on Thursday at 79.5%. Each day rests on about 45 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2098 runs late

One category carries most of the weight here. Carrier accounts for 48% of the 1,870 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.

Carrier
48%
Late-arriving aircraft
27%
National Airspace System
23%
Extreme weather
2%

The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 896 of the 1,870 delay minutes reported here. The split is drawn from 1,870 delay minutes reported on UA 2098.

Cancellations sit at 2.22% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.3% land an hour or more behind schedule, against 8.1% 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.

The same number turns up on two other city pairs in the data, including IAD to BNA (49) and EWR to BOS (20), but none flew often enough under UA 2098 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BOS to IAD only.

One caution: this is a thin sample. 316 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 2098

For a booking, read UA 2098 as 90.9% on time with 2.22% cancelled over 316 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