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DelayAtlas

Flight number record

UA 752

United Airlines · Chicago to Washington

Route
ORD → DCA
Departs
12:50
Flights
302
Period
July 2025 to June 2026
D+GRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 752, check with United Airlines.

UA 752 draws a D+. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 302 flights, with a median arrival 1 minute late.

The national on-time rate over the same period is 77.6%, so UA 752 runs 14 points behind the country as a whole. Across a thousand flights that is about 141 extra late arrivals.

Key figures

On time

63.5%

Arrivals under 15 minutes late, of 299 completed flights

Avg delay

72 min

Across delayed arrivals only, not all flights

Cancelled

0.33%

National rate is 1.81%

1 hour+ late

14.0%

National rate is 8.1%

These figures cover 302 flights between July 2025 and June 2026. Beyond the headline rate, 14.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When UA 752 flies

UA 752 flies ORD to DCA without a single fixed slot. Its most common scheduled departure was 12:50, used on 99 of 302 flights, with 12:45 (80 flights) and 12:40 (46 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

  • Departs 12:5099 flights32.8%
  • Departs 12:4580 flights26.5%
  • Departs 12:4046 flights15.2%

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 12:50 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and UA 752 runs 15 points worse at 63.5%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

UA 752 next to ORD to DCA

Every carrier on ORD to DCA combined arrived on time 69.1% of the time across 6,987 flights, so UA 752 is 6 points behind it. United flew 3,393 flights on the same city pair under all its flight numbers, including this one, and those ran 70.6% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 16 points.

UA 752 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
UA 752thin sample30263.5%72 min0.33%D+
All United Airlines on ORD–DCA3,39370.6%75 min1.80%C
All carriers on ORD–DCA6,98769.1%82 min3.05%C−
United Airlines, whole network821,04179.0%72 min1.01%B

Across the year

UA 752 quarter by quarter

Quarter by quarter UA 752 held fairly steady: 62.3% in Jul–Sep 2025, 69.4% in Oct–Dec 2025, 61.1% in Jan–Mar 2026 and 61.5% 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 202578 flights62.3%
  • Oct–Dec 202572 flights69.4%
  • Jan–Mar 202674 flights61.1%
  • Apr–Jun 202678 flights61.5%

Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.

By weekday, UA 752 ranged from 57.4% on Thursday to 69.2% on Tuesday. With about 43 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

On-time rate by day of the week66.7Mon69.2Tue67.3Wed57.4Thu59.2FriSat60.0Sun
Monday: 66.7 percent on time. Tuesday: 69.2 percent on time. Wednesday: 67.3 percent on time. Thursday: 57.4 percent on time. Friday: 59.2 percent on time. Saturday: not enough flights. Sunday: 60.0 percent on time

Delay causes

Why UA 752 runs late

One category carries most of the weight here. National Airspace System accounts for 49% of the 7,862 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
    49%
  • Late-arriving aircraft
    38%
  • Carrier
    12%
  • Extreme weather
    0%

38% 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 7,862 reported delay minutes here, that single category outweighs weather by 38 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 7,862 delay minutes reported on UA 752.

Cancellations are rare at 0.33%, 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

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 14.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 612 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 thirteen other city pairs in the data, including FLL to ORD (62), TPA to ORD (37) and RSW to ORD (30), but none flew often enough under UA 752 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to DCA only.

One caution: this is a thin sample. 302 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 752

For a booking, UA 752 is a flight to put a long connection behind. 14.0% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

Related

Where to go next

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.