Flight profile · American Airlines
AA633
Phoenix (PHX) to Dallas–Fort Worth (DFW) · scheduled 6:55 PM – 11:21 PM
How AA633 performs
704 operations, July 2023 – July 2026.
AA633 arrived on time 77.8% of the time, against 80.0% for all PHX → DFW flights, so this departure is 2.2 percentage points worse than the route as a whole. Against American Airlines’ own flights on this route it is 2.8 points worse.
Source: US DOT Bureau of Transportation Statistics · 704 operations, July 2023 – July 2026 · If AA633 is cancelled or significantly changed, DOT’s automatic refund rule may entitle you to your money back. The refund checker walks through eligibility.
Where AA633 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 |
|---|---|---|---|---|---|
| AA633 | 77.8% | 2.70% | -8 min | 8.0% | 704 |
| American Airlines on PHX → DFW | 80.6% | 1.84% | -7 min | 7.0% | 13,740 |
| All PHX → DFW flights | 80.0% | 1.77% | -7 min | 7.5% | 16,005 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why AA633 runs late
Where US DOT attributed the delay minutes on this flight.
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for AA633 on PHX → DFW. 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 AA633 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, AA633 pushed back an average of 36 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 PHX just before it, using the tail number in the DOT file, 629 of 686 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 |
|---|---|---|---|
| AA633 | 22% | 65% | 10% |
| 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 AA633’s aircraft landed 15 or more minutes late is higher than the network’s and, once the aircraft was late, how often AA633 left 15 or more minutes late is about the same as 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 PHX late, does that still matter by the time it reaches DFW?
AA633 pushes back an average of 13.3 minutes late and reaches the gate at DFW an average of 5.6 minutes late. The 7.7 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 16.3 minutes on the taxiways at PHX, 2.5 minutes longer than a typical PHX departure in the same hour.
On arrival at DFW, AA633 spends 10.1 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 3.4 minutes shorter than a typical DFW arrival (13.5 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 DFW. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 30,544 departures from PHX scheduled in the clock hour AA633 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at DFW (961,642 flights), not just AA633’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves PHX
Part of any flight’s record belongs to the clock rather than to the flight. AA633 has one departure time, so this is what that time is worth.
On-time arrival rate. 30,544 departures from PHX are scheduled in the 6 PM–7 PM hour over the period, against 598,518 across the whole day.
AA633 is scheduled out of PHX at 6:55 PM, in the 6 PM–7 PM bank. Departures from PHX in that hour arrive on time 71.4% of the time against 80.3% across the airport’s whole day — the slot alone is worth 8.9 points worse before anything about this particular flight is considered.
The two airport figures cover every departure from PHX 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.
Other routes AA633 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 |
|---|---|---|---|
| DFW→FSD Dallas–Fort Worth to Sioux Falls | March 8, 2026 – May 20, 2026 | 74 | — |
| FSD→DFW Sioux Falls to Dallas–Fort Worth | March 8, 2026 – May 20, 2026 | 74 | — |
| PHX→CVG Phoenix to Cincinnati / Covington | December 18, 2025 – January 5, 2026 | 16 | — |
| CVG→PHX Cincinnati / Covington to Phoenix | December 18, 2025 – January 5, 2026 | 12 | — |
| MIA→STT Miami to Charlotte Amalie | October 6, 2025 – November 1, 2025 | 27 | — |
| STT→MIA Charlotte Amalie to Miami | October 6, 2025 – November 1, 2025 | 27 | — |
| MCO→CLT Orlando to Charlotte | January 7, 2025 – February 12, 2025 | 37 | — |
| PDX→CLT Portland to Charlotte | December 6–18, 2024 | 13 | — |
| PHL→RDU Philadelphia to Raleigh–Durham | November 7, 2024 – December 4, 2024 | 21 | — |
Because the same number has served different journeys, the statistics above describe only the route AA633 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.
47 min late
against a median of 8 min early
Percentiles over 704 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 |
|---|---|---|---|---|
| AA1018 | American Airlines | 89.2% | 11 min early | 618 |
| AA633 this flight | American Airlines | 77.8% | 8 min early | 704 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. AA633 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 704 records of AA633 operating PHX → DFW, 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