Flight number record
UA 1310
United Airlines · New York to Chicago
- Route
- LGA → ORD
- Departs
- 10:15
- Flights
- 329
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 1310, check with United Airlines.
UA 1310 lands a B, level with the national rate of 77.3%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 329 flights, with a median arrival 8 minutes early.
Key figures
On time
77.8%
Arrivals under 15 minutes late, of 320 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
2.43%
National rate is 1.89%
1 hour+ late
8.4%
National rate is 8.3%
These figures cover 329 flights between September 2025 and August 2026. Beyond the headline rate, 8.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When UA 1310 flies
UA 1310 flies LGA to ORD without a single fixed slot. Its most common scheduled departure was 10:15, used on 261 of 329 flights.
- Departs 10:15261 flights79.3%
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 10:15 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and UA 1310 runs 6 points worse at 77.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
UA 1310 next to LGA to ORD
Every carrier on LGA to ORD combined arrived on time 66.7% of the time across 11,630 flights, so UA 1310 is 11 points ahead of it. United flew 4,671 flights on the same city pair under all its flight numbers, including this one, and those ran 65.4% on time. Across its whole network United Airlines managed 78.8%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1310thin sample | 329 | 77.8% | 79 min | 2.43% | B |
| All United Airlines on LGA–ORD | 4,671 | 65.4% | 90 min | 4.24% | C− |
| All carriers on LGA–ORD | 11,630 | 66.7% | 89 min | 5.45% | C− |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 1310 quarter by quarter
Quarter by quarter UA 1310 held fairly steady: 71.4% in Oct–Dec 2025, 77.5% in Jan–Mar 2026, 80.9% in Apr–Jun 2026 and 80.3% in Jul–Sep 2026. A spread of 10 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 202584 flights71.4%
- Jan–Mar 202687 flights77.5%
- Apr–Jun 202691 flights80.9%
- Jul–Sep 202661 flights80.3%
Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1310 did best on Wednesday at 84.4% on time and worst on Sunday at 68.1%. Each day rests on about 47 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 1310 runs when it is late
UA 1310 often beats the schedule: 111 of 320 completed flights, 35%, arrived 15 minutes or more early. The 71 late arrivals split 25 under half an hour, 19 between 30 and 60 minutes, and 27 an hour or more.
- 15+ min early111 flights34.7%
- Within 15 min138 flights43.1%
- 15–29 min late25 flights7.8%
- 30–59 min late19 flights5.9%
- 1–2 hours late12 flights3.8%
- 2+ hours late15 flights4.7%
Scale runs 0% to 100%.
Share of 320 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 38 departures that left 15 minutes late or more, only 3 made it up before arrival. In the other direction, 36 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 1310
The latest arrival of the period was on 14 December 2025, 7 hours 21 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The five worst days are spread across December, July, April and March, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 December 2025 | 7 hours 21 minutes | Late-arriving aircraft |
| 7 December 2025 | 4 hours 57 minutes | National Airspace System |
| 18 July 2026 | 4 hours 27 minutes | Extreme weather |
| 21 April 2026 | 4 hours 23 minutes | Carrier |
| 6 March 2026 | 3 hours 51 minutes | Extreme weather |
Delay causes
Why UA 1310 runs late
National Airspace System accounts for 60% of the 5,605 delay minutes carriers reported here, and the remaining four split what is left.
- 60%National Airspace System
- 21%Late-arriving aircraft
- 11%Carrier
- 9%Extreme weather
60% 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 3,342 minutes out of 5,605, against a national NAS share of 21%. The split is drawn from 5,605 delay minutes reported on UA 1310.
Cancellations sit at 2.43% against a national 1.89%, which is ordinary. Diversions add another 0.30%.
Connections and routes
What a delay on this flight costs
8.4% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 733 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 three other city pairs in the data, including ORD to CMH (55), SNA to ORD (21) and IAH to MIA (11), but none flew often enough under UA 1310 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to ORD only.
One caution: this is a thin sample. 329 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 1310
For a booking, read UA 1310 as 77.8% on time with 2.43% cancelled over 329 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- LGA to ORD, every carrier and departure
- ORD to LGA, the return direction
- United Airlines 2389 on the same route88.7%
- United Airlines 623 on the same route78.6%
- United Airlines 1504 on the same route59.4%
- United Airlines 2299 on the same route45.4%
- LaGuardia (LGA) 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
- Connecting flights: how much buffer the data says you need
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.