Flight profile · United Airlines
UA1383
Houston (IAH) to Santa Ana (SNA) · scheduled 9:30 AM – 10:59 AM
How UA1383 performs
823 operations, March 2024 – July 2026.
UA1383 arrived on time 87.4% of the time, against 83.5% for all IAH → SNA flights, so this departure is 3.9 percentage points better than the route as a whole. Against United Airlines’ own flights on this route it is 3.9 points better.
Source: US DOT Bureau of Transportation Statistics · 823 operations, March 2024 – July 2026 · If UA1383 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where UA1383 is right now
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Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| UA1383 | 87.4% | 0.73% | -8 min | 4.3% | 823 |
| United Airlines on IAH → SNA | 83.5% | 0.81% | -7 min | 5.1% | 3,721 |
| All IAH → SNA flights | 83.5% | 0.81% | -7 min | 5.1% | 3,721 |
Source: FlyerIntel analysis of US DOT BTS data · March 2024 – July 2026
Why UA1383 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
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA1383 on IAH → SNA. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering March 2024 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies UA1383 comes in late, and what that does to the departure.
The aircraft flying UA1383 came in 15 or more minutes late on 9% of the departures where its previous flight is known. There are not enough departures in both groups to say how the flight left after a late one and after an on-time one.
Each departure is matched to the flight the same aircraft flew into IAH just before it, using the tail number in the DOT file, 566 of 817 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 |
|---|---|
| UA1383 | 9% |
| Network, same turn | 17% |
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 UA1383’s aircraft landed 15 or more minutes late is lower than the network’s. There are not enough departures in both groups to compare how it left.
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 March 2024 – July 2026
From pushback to gate
When it leaves IAH late, does that still matter by the time it reaches SNA?
UA1383 pushes back an average of 7.2 minutes late and reaches the gate at SNA an average of 0.6 minutes early. The 7.9 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 19.8 minutes on the taxiways at IAH, 1.7 minutes shorter than a typical IAH departure in the same hour.
On arrival at SNA, UA1383 spends 7.7 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 1.0 minutes longer than a typical SNA arrival (6.7 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 SNA. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 27,050 departures from IAH scheduled in the clock hour UA1383 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at SNA (137,357 flights), not just UA1383’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · March 2024 – July 2026
The hour it leaves IAH
Part of any flight’s record belongs to the clock rather than to the flight. UA1383 has one departure time, so this is what that time is worth.
On-time arrival rate. 27,050 departures from IAH are scheduled in the 9 AM–10 AM hour over the period, against 359,450 across the whole day.
UA1383 is scheduled out of IAH at 9:30 AM, in the 9 AM–10 AM bank. Departures from IAH in that hour arrive on time 82.7% of the time against 77.4% across the airport’s whole day — the slot alone is worth 5.3 points better before anything about this particular flight is considered.
The two airport figures cover every departure from IAH 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 · March 2024 – July 2026 · Hours below 120 departures are not scored.
Other routes UA1383 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 |
|---|---|---|---|
| RDU→IAH Raleigh–Durham to Houston | March 6, 2025 – June 29, 2026 | 454 | 92.4% |
| SNA→SFO Santa Ana to San Francisco | March 29, 2026 – June 24, 2026 | 88 | — |
| SNA→ORD Santa Ana to Chicago | March 6, 2025 – February 11, 2026 | 163 | 66.7% |
| SNA→EWR Santa Ana to Newark | May 22, 2025 – June 25, 2025 | 35 | — |
| ORF→IAH Norfolk to Houston | January 7, 2025 – February 12, 2025 | 37 | — |
| PNS→IAH Pensacola to Houston | December 19, 2024 – January 6, 2025 | 19 | — |
| CLE→IAH Cleveland to Houston | December 3–18, 2024 | 16 | — |
| RSW→IAH Fort Myers to Houston | October 27, 2024 – December 2, 2024 | 36 | — |
| MSY→IAH New Orleans to Houston | January 9, 2024 – September 25, 2024 | 208 | 84.6% |
| IND→IAH Indianapolis to Houston | March 31, 2024 | 1 | — |
| IAH→DCA Houston to Washington | July 1, 2023 – February 14, 2024 | 153 | 87.5% |
| EWR→SEA Newark to Seattle | December 21, 2023 – January 8, 2024 | 19 | — |
| SRQ→DEN Sarasota/Bradenton to Denver | November 4–25, 2023 | 4 | — |
| EWR→BNA Newark to Nashville | August 1, 2023 – September 4, 2023 | 8 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1383 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.
20 min late
against a median of 8 min early
Percentiles over 823 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering March 2024 – July 2026
Data and methodology
Calculated by FlyerIntel from 823 records of UA1383 operating IAH → SNA, 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