Flight number record
UA 1564
United Airlines · Dallas-Fort Worth to Chicago
- Route
- DFW → ORD
- Departs
- 16:27
- Flights
- 352
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1564, check with United Airlines.
UA 1564 draws a D. Roughly one flight in two arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 352 flights, with a median arrival 6 minutes late.
The national on-time rate over the same period is 77.3%, so UA 1564 runs 19 points behind the country as a whole. Across a thousand flights that is about 185 extra late arrivals.
Key figures
On time
58.8%
Arrivals under 15 minutes late, of 347 completed flights
Avg delay
94 min
Across delayed arrivals only, not all flights
Cancelled
1.14%
National rate is 1.89%
1 hour+ late
19.3%
National rate is 8.3%
These figures cover 352 flights between September 2025 and August 2026. Beyond the headline rate, 19.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 1564 flies
UA 1564 flies DFW to ORD without a single fixed slot. Its most common scheduled departure was 16:27, used on 49 of 352 flights, with 16:28 (46 flights) and 17:47 (46 flights) next.
- Departs 16:2749 flights13.9%
- Departs 16:2846 flights13.1%
- Departs 17:4746 flights13.1%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 16:27 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and UA 1564 runs 13 points worse at 58.8%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
UA 1564 next to DFW to ORD
Every carrier on DFW to ORD combined arrived on time 68.8% of the time across 7,115 flights, so UA 1564 is 10 points behind it. United flew 2,080 flights on the same city pair under all its flight numbers, including this one, and those ran 70.9% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 20 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1564thin sample | 352 | 58.8% | 94 min | 1.14% | D |
| All United Airlines on DFW–ORD | 2,080 | 70.9% | 96 min | 1.78% | C |
| All carriers on DFW–ORD | 7,115 | 68.8% | 82 min | 2.75% | C |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1564 quarter by quarter
UA 1564 did not run the same all year. Its best quarter was Oct–Dec 2025 at 62.2% on time and its weakest Jul–Sep 2026 at 50.8%, a swing of 11 points on roughly 70 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights60.0%
- Oct–Dec 202583 flights62.2%
- Jan–Mar 202687 flights60.5%
- Apr–Jun 202691 flights58.9%
- Jul–Sep 202661 flights50.8%
Scale runs 40% to 70%.
By weekday, UA 1564 did best on Wednesday at 68.0% on time and worst on Thursday at 50.0%. Each day rests on about 50 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1564 runs when it is late
The 143 late arrivals split 46 under half an hour, 30 between 30 and 60 minutes, and 67 an hour or more.
- 15+ min early32 flights9.2%
- Within 15 min172 flights49.6%
- 15–29 min late46 flights13.3%
- 30–59 min late30 flights8.6%
- 1–2 hours late28 flights8.1%
- 2+ hours late39 flights11.2%
Scale runs 0% to 100%.
Share of 347 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 106 departures that left 15 minutes late or more, only 7 made it up before arrival. In the other direction, 44 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at ORD.
The worst days
Worst days for UA 1564
The latest arrival of the period was on 29 November 2025, 7 hours 24 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The five worst days are spread across November, March, April and May, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 29 November 2025 | 7 hours 24 minutes | National Airspace System |
| 20 November 2025 | 6 hours 56 minutes | Late-arriving aircraft |
| 31 March 2026 | 6 hours 36 minutes | National Airspace System |
| 27 April 2026 | 6 hours 32 minutes | Carrier |
| 19 May 2026 | 6 hours 17 minutes | Late-arriving aircraft |
Delay causes
Why UA 1564 runs late
Late-arriving aircraft accounts for 44% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Late-arriving aircraft
- 41%National Airspace System
- 13%Carrier
- 2%Extreme weather
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 13,000 reported delay minutes here, that single category outweighs weather by 27 to one. The split is drawn from 13,368 delay minutes reported on UA 1564.
Cancellations sit at 1.14% against a national 1.89%, which is ordinary. Diversions add another 0.28%.
Connections and routes
What a delay on this flight costs
19.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 802 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.
The same number turns up on six other city pairs in the data, including IAD to DFW (198), ORD to MSP (50) and ORD to SJC (24), but none flew often enough under UA 1564 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DFW to ORD only.
One caution: this is a thin sample. 352 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 1564
For a booking, UA 1564 is a flight to put a long connection behind. 19.3% 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
- DFW to ORD, every carrier and departure
- ORD to DFW, the return direction
- United Airlines 1517 on the same route65.5%
- American Airlines 1290 on the same route66.5%
- Dallas/Fort Worth International (DFW) delay statistics
- Chicago O'Hare International (ORD) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.