Flight profile · United Airlines
UA1730
Los Angeles (LAX) to Orlando (MCO) · scheduled 9:35 PM – 7:03 AM
How UA1730 performs
967 operations, July 2023 – July 2026.
UA1730 arrived on time 89.3% of the time, against 79.1% for all LAX → MCO flights, so this departure is 10.2 percentage points better than the route as a whole.
UA1730’s scheduled departure has moved during the period FlyerIntel has on file: it typically left around 11:00 PM earlier on, and around 9:30 PM more recently — a 90-minute shift, not the few minutes of day-to-day rounding every published schedule carries. Confirm the current departure time before booking around an older listing.
Source: US DOT Bureau of Transportation Statistics · 967 operations, July 2023 – July 2026 · If UA1730 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
What stands out
How UA1730 compares to other flight numbers, not just to itself.
This flight runs unusually far ahead of the LAX → MCO route as a whole, better than 91% of 11,788 comparable flight numbers.
89.3% on time for this specific departure, against 79.1% for every LAX → MCO flight.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · The one thing about this specific departure that ranks most extreme against every other published flight number, out of everything FlyerIntel checks — shown only when something clears a real statistical bar, not for every flight.
Where UA1730 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| UA1730 | 89.3% | 1.03% | -13 min | 3.1% | 967 |
| United Airlines on LAX → MCO | 88.9% | 0.89% | -13 min | 3.1% | 2,353 |
| All LAX → MCO flights | 79.1% | 0.75% | -5 min | 6.8% | 9,918 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why UA1730 runs late
Where US DOT attributed the delay minutes on this flight.
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for UA1730 on LAX → MCO. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies UA1730 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, UA1730 pushed back an average of 26 minutes late; when it came in on time or early, an average of 0 minutes early.
Each departure is matched to the flight the same aircraft flew into LAX just before it, using the tail number in the DOT file, 866 of 958 departures in all. A departure is left out when that flight is unknown, was cancelled or diverted, or the aircraft had sat for more than 12 hours. A flight the airline cancelled never left and is not in the count, and one flown by a substitute aircraft is matched to the aircraft that flew it, not to the one first planned.
Against the network at the same turn length
| Share of departures | Inbound landed 15+ late | Left 15+ late after a late inbound | Left 15+ late after an on-time inbound |
|---|---|---|---|
| UA1730 | 14% | 50% | 7% |
| Network, same turn | 17% | 68% | 9% |
The schedule leaves a normal turn: enough time to clean and board if the aircraft is on time, little to spare if it is not.
The network row is every flight with a scheduled turn of 60 to 89 minutes. How often UA1730’s aircraft landed 15 or more minutes late is about the same as the network’s and, once the aircraft was late, how often UA1730 left 15 or more minutes late is lower than the network’s.
More: Which Flight Numbers Pay for a Late Aircraft lists the flight numbers that pass a late aircraft on.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
From pushback to gate
When it leaves LAX late, does that still matter by the time it reaches MCO?
UA1730 pushes back an average of 4.5 minutes late and reaches the gate at MCO an average of 6.2 minutes early. The 10.7 minutes between those two figures are slack the published schedule already carries, which is why a late pushback on this flight does not reliably become a late arrival. It spends 20.4 minutes on the taxiways at LAX, 2.7 minutes longer than a typical LAX departure in the same hour.
On arrival at MCO, UA1730 spends 6.8 min taxiing from touchdown to the gate — ground time a connecting passenger sits through before they can even leave the aircraft, on top of however late the flight itself ran. That is 4.1 minutes shorter than a typical MCO arrival (10.9 min).
Departure delay is averaged over every pushback and arrival delay over every completed arrival, so the two counts differ by the flights that never reached MCO. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 25,920 departures from LAX scheduled in the clock hour UA1730 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at MCO (498,229 flights), not just UA1730’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves LAX
Part of any flight’s record belongs to the clock rather than to the flight. UA1730 has one departure time, so this is what that time is worth.
On-time arrival rate. 25,920 departures from LAX are scheduled in the 9 PM–10 PM hour over the period, against 595,153 across the whole day.
UA1730 is scheduled out of LAX at 9:35 PM, in the 9 PM–10 PM bank. Departures from LAX in that hour arrive on time 79.1% of the time against 81.4% across the airport’s whole day, so the hour UA1730 leaves in is an ordinary one for LAX and explains nothing about its record either way.
The two airport figures cover every departure from LAX to every destination, so they describe the slot rather than this journey — the like-for-like comparison against the route is above. Hours are scheduled local, and a number whose schedule moved between banks inside the period has no single hour and is not described here at all. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Hours below 120 departures are not scored.
By day of week
Does UA1730 run worse on particular days?
Tuesday is historically the most reliable day and Friday the least, a gap of 9.2 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Days with fewer than 120 operations are not scored.
Other routes UA1730 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SEA→LAX Seattle to Los Angeles | April 30, 2026 – July 31, 2026 | 88 | — |
| LAX→CLE Los Angeles to Cleveland | April 30, 2026 – May 20, 2026 | 15 | — |
| LAX→SAN Los Angeles to San Diego | March 5, 2026 – April 29, 2026 | 56 | — |
| SMF→LAX Sacramento to Los Angeles | March 5, 2026 – April 27, 2026 | 36 | — |
| IAH→SMF Houston to Sacramento | March 5–27, 2026 | 17 | — |
| IAD→LAX Washington to Los Angeles | February 12, 2026 – March 4, 2026 | 18 | — |
| JAX→IAD Jacksonville to Washington | August 19, 2025 | 1 | — |
| IAD→SEA Washington to Seattle | February 13, 2025 – March 5, 2025 | 21 | — |
| DEN→LAX Denver to Los Angeles | March 31, 2024 – May 22, 2024 | 53 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1730 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
15 min late
against a median of 13 min early
Percentiles over 967 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA1730 this flight | United Airlines | 89.3% | 13 min early | 967 |
| UA1621 | United Airlines | 87.9% | 12 min early | 1,074 |
| DL482 | Delta Air Lines | 82.6% | 4 min early | 782 |
| DL718 | Delta Air Lines | 79.9% | 5 min early | 973 |
| DL547 | Delta Air Lines | 77.4% | 3 min early | 601 |
| DL867 | Delta Air Lines | 73.4% | 0 min early | 1,035 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. UA1730 is placed in the same ordering rather than left out of it; the rows around it are the most punctual departures on the route, not all of them, so this is a comparison and not a rank. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 967 records of UA1730 operating LAX → MCO, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
Full methodology · Data sources · Report a problem
Related research: Most and Least Reliable Flight Numbers · The Delay You Inherit · Making Up Time in the Air
Analysis last recomputed