Flight profile · United Airlines
UA1370
Tampa (TPA) to Washington (IAD) · scheduled 6:20 PM – 9:25 PM
How UA1370 performs
713 operations, June 2024 – July 2026.
UA1370 arrived on time 73.2% of the time, against 82.4% for all TPA → IAD flights, so this departure is 9.2 percentage points worse than the route as a whole. Against United Airlines’ own flights on this route it is 9.9 points worse.
Source: US DOT Bureau of Transportation Statistics · 713 operations, June 2024 – July 2026 · If UA1370 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where UA1370 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 |
|---|---|---|---|---|---|
| UA1370 | 73.2% | 1.26% | -6 min | 12.4% | 713 |
| United Airlines on TPA → IAD | 83.1% | 1.31% | -9 min | 6.9% | 3,590 |
| All TPA → IAD flights | 82.4% | 1.50% | -9 min | 7.2% | 3,940 |
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026
Why UA1370 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding and fueling, all within the carrier’s control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA1370 on TPA → IAD. Only delays of 15 minutes or more are attributed.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
Does a late aircraft delay this flight?
How often the plane that flies UA1370 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, UA1370 pushed back an average of 58 minutes late; when it came in on time or early, an average of 2 minutes late.
Each departure is matched to the flight the same aircraft flew into TPA just before it, using the tail number in the DOT file, 684 of 704 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 |
|---|---|---|---|
| UA1370 | 20% | 73% | 9% |
| 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 UA1370’s aircraft landed 15 or more minutes late is higher than the network’s and, once the aircraft was late, how often UA1370 left 15 or more minutes late is higher 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 June 2024 – July 2026
From pushback to gate
When it leaves TPA late, does that still matter by the time it reaches IAD?
UA1370 pushes back an average of 15.9 minutes late and reaches the gate at IAD an average of 12.4 minutes late. The 3.5 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. Its 17.7 minutes on the taxiways at TPA is about what any departure from the airport in that hour spends.
On arrival at IAD, UA1370 spends 8.4 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 about what any arrival at IAD spends on the ground before reaching the gate.
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 IAD. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 15,268 departures from TPA scheduled in the clock hour UA1370 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at IAD (169,930 flights), not just UA1370’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · June 2024 – July 2026
The hour it leaves TPA
Part of any flight’s record belongs to the clock rather than to the flight. UA1370 has one departure time, so this is what that time is worth.
On-time arrival rate. 15,268 departures from TPA are scheduled in the 6 PM–7 PM hour over the period, against 242,628 across the whole day.
UA1370 is scheduled out of TPA at 6:20 PM, in the 6 PM–7 PM bank. Departures from TPA in that hour arrive on time 65.2% of the time against 78.2% across the airport’s whole day — the slot alone is worth 13.1 points worse before anything about this particular flight is considered.
The two airport figures cover every departure from TPA 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 · June 2024 – July 2026 · Hours below 120 departures are not scored.
Other routes UA1370 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 |
|---|---|---|---|
| SFO→OGG San Francisco to Kahului | March 28, 2026 | 1 | — |
| RNO→SFO Reno to San Francisco | March 7–21, 2026 | 3 | — |
| SFO→TPA San Francisco to Tampa | September 26, 2024 – February 11, 2026 | 196 | 89.1% |
| IAD→RDU Washington to Raleigh–Durham | October 26, 2025 – February 11, 2026 | 73 | — |
| IAH→TPA Houston to Tampa | October 26, 2025 – January 5, 2026 | 56 | — |
| PHX→IAH Phoenix to Houston | December 18, 2025 – January 5, 2026 | 19 | — |
| IAD→CLE Washington to Cleveland | December 21, 2023 – August 18, 2025 | 373 | 78.6% |
| TPA→ORD Tampa to Chicago | March 6–29, 2025 | 20 | — |
| IAH→IAD Houston to Washington | July 1, 2023 – May 22, 2024 | 251 | 75.3% |
| SEA→IAH Seattle to Houston | May 2–22, 2024 | 21 | — |
| SEA→IAD Seattle to Washington | December 25, 2023 – January 5, 2024 | 10 | — |
Because the same number has served different journeys, the statistics above describe only the route UA1370 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.
77 min late
against a median of 6 min early
UA1370 has an average that understates its risk: a typical arrival is 6 min early, but the worst tenth are 83 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 713 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering June 2024 – July 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA2331 | United Airlines | 91.5% | 13 min early | 901 |
| UA1370 this flight | United Airlines | 73.2% | 6 min early | 713 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. UA1370 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 713 records of UA1370 operating TPA → IAD, 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