Flight number record
UA 1730
United Airlines · Los Angeles to Orlando
- Route
- LAX → MCO
- Departs
- 21:35
- Flights
- 279
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s UA 1730, check with United Airlines.
UA 1730 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 12 points better than the national rate of 77.6%. When something does go wrong the average delay runs an hour and a half. That rests on 279 flights, with a median arrival 13 minutes early.
Set against the rest of the country, UA 1730's record is 12 points better than the US average of 77.6%. That gap is worth roughly 123 fewer late arrivals for every thousand flights.
Key figures
On time
89.9%
Arrivals under 15 minutes late, of 278 completed flights
Avg delay
87 min
Across delayed arrivals only, not all flights
Cancelled
0.00%
National rate is 1.81%
1 hour+ late
4.0%
National rate is 8.1%
These figures cover 279 flights between July 2025 and June 2026. The median arrival is 13 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 1730 flies
UA 1730 flies LAX to MCO without a single fixed slot. Its most common scheduled departure was 21:35, used on 47 of 279 flights, with 21:59 (41 flights) and 21:30 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 21:3547 flights16.8%
- Departs 21:5941 flights14.7%
- Departs 21:3041 flights14.7%
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 21:35 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and UA 1730 runs 19 points better at 89.9%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
UA 1730 next to LAX to MCO
Every carrier on LAX to MCO combined arrived on time 77.1% of the time across 3,487 flights, so UA 1730 is 13 points ahead of it. United flew 833 flights on the same city pair under all its flight numbers, including this one, and those ran 89.1% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 1730thin sample | 279 | 89.9% | 87 min | 0.00% | A+ |
| All United Airlines on LAX–MCO | 833 | 89.1% | 61 min | 0.00% | A+ |
| All carriers on LAX–MCO | 3,487 | 77.1% | 69 min | 0.57% | B+ |
| United Airlines, whole network | 821,041 | 79.0% | 72 min | 1.01% | B |
Across the year
UA 1730 quarter by quarter
Quarter by quarter UA 1730 held fairly steady: 89.4% in Jul–Sep 2025, 88.9% in Oct–Dec 2025, 93.5% in Jan–Mar 2026 and 87.8% in Apr–Jun 2026. A spread of 6 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202585 flights89.4%
- Oct–Dec 202591 flights88.9%
- Jan–Mar 202662 flights93.5%
- Apr–Jun 202641 flights87.8%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 1730 did best on Saturday at 95.0% on time and worst on Friday at 77.5%. Each day rests on about 40 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Delay causes
Why UA 1730 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 48% of the 2,438 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.
- 48%Late-arriving aircraft
- 45%Carrier
- 7%National Airspace System
48% 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 2,438 reported delay minutes here, that single category outweighs weather by 48 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 2,438 delay minutes reported on UA 1730.
Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are 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 4.0% 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.
At 2,218 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The same number turns up on seven other city pairs in the data, including SEA to LAX (59), LAX to SAN (56) and SMF to LAX (36), but none flew often enough under UA 1730 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to MCO 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 1730
For a booking, UA 1730 has one of the better records a US domestic flight can show: 89.9% on time and 0.00% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- LAX to MCO, every carrier and departure
- MCO to LAX, the return direction
- Delta Air Lines 482 on the same route82.4%
- American Airlines 1024 on the same route68.1%
- Delta Air Lines 718 on the same route77.2%
- Delta Air Lines 867 on the same route66.6%
- United Airlines 1621 on the same route88.6%
- American Airlines 1118 on the same route80.9%
- Los Angeles International (LAX) delay statistics
- Orlando International (MCO) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.