Flight number record

UA 1775

United Airlines · Washington to Chicago

Route: IAD → ORD
Departs: 08:20
Flights: 279
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1775, check with United Airlines.

UA 1775 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 40 minutes on average. That is a workable record, not a spotless one. That rests on 279 flights, with a median arrival 2 minutes early.

Set against the rest of the country, UA 1775'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 278 completed flights

Avg delay

39 min

Across delayed arrivals only, not all flights

Cancelled

0.36%

National rate is 1.81%

1 hour+ late

2.5%

National rate is 8.1%

These figures cover 279 flights between July 2025 and June 2026. The median arrival is 2 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 1775 flies

UA 1775 flies IAD to ORD without a single fixed slot. Its most common scheduled departure was 08:20, used on 138 of 279 flights, with 08:15 (80 flights) and 08:30 (50 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:20138 flights49.5%
Departs 08:1580 flights28.7%
Departs 08:3050 flights17.9%

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 08:20 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 1775 runs level with that at 83.5%. 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 1775 next to IAD to ORD

Every carrier on IAD to ORD combined arrived on time 75.2% of the time across 2,054 flights, so UA 1775 is 8 points ahead of it. Across its whole network United Airlines managed 79.0%, which this flight beats by 5 points.

UA 1775 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 1775thin sample	279	83.5%	39 min	0.36%	B+
All United Airlines on IAD–ORD	2,054	75.2%	73 min	0.83%	B+
All carriers on IAD–ORD	2,054	75.2%	73 min	0.83%	B+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 1775 quarter by quarter

Quarter by quarter UA 1775 held fairly steady: 83.7% in Oct–Dec 2025, 78.7% in Jan–Mar 2026 and 86.8% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 20256 flights—
Oct–Dec 202592 flights83.7%
Jan–Mar 202690 flights78.7%
Apr–Jun 202691 flights86.8%

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

By weekday, UA 1775 ranged from 77.5% on Sunday to 87.2% on Monday. With about 40 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why UA 1775 runs late

One category carries most of the weight here. National Airspace System accounts for 74% of the 1,808 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
74%
Carrier
26%

74% 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 1,342 minutes out of 1,808, against a national NAS share of 21%. The split is drawn from 1,808 delay minutes reported on UA 1775.

Cancellations are rare at 0.36%, 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

Badly late arrivals are rare here: only 2.5% 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 588 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on three other city pairs in the data, including ORD to FLL (133), ORD to PNS (19) and ORD to LGA (17), but none flew often enough under UA 1775 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAD to ORD only.

One caution: this is a thin sample. 279 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 1775

For a booking, read UA 1775 as 83.5% on time with 0.36% cancelled over 279 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