Flight profile · American Airlines
AA1177
Dallas–Fort Worth (DFW) to Washington (DCA) · scheduled 8:32 AM – 11:59 AM
How AA1177 performs
1,056 operations, July 2023 – July 2026.
AA1177 arrived on time 84.6% of the time, against 74.5% for all DFW → DCA flights, so this departure is 10.1 percentage points better than the route as a whole. Against American Airlines’ own flights on this route it is 10.1 points better.
Source: US DOT Bureau of Transportation Statistics · 1,056 operations, July 2023 – July 2026 · If AA1177 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 AA1177 compares to other flight numbers, not just to itself.
This flight runs unusually far ahead of the carrier's own average on this route, better than 92% of 11,589 comparable flight numbers.
84.6% on time for this specific departure, against 74.5% for the same carrier's other flights on this route.
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 AA1177 is right now
A live reading, only if you ask for it. It is not part of the reliability record above.
Ask for the position of AA1177 right now, if receivers on the ground are hearing it. Nothing is requested until you press the button.
Against the rest of the route
| Flight or route | On time | Cancelled | Median delay | Severe | Flights |
|---|---|---|---|---|---|
| AA1177 | 84.6% | 2.37% | -12 min | 4.9% | 1,056 |
| American Airlines on DFW → DCA | 74.5% | 2.56% | -4 min | 8.8% | 10,254 |
| All DFW → DCA flights | 74.5% | 2.56% | -4 min | 8.8% | 10,254 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Why AA1177 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
weather severe enough to stop this flight specifically
airspace and airport capacity, including weather-driven flow control
Share of the delay minutes US DOT attributed to each cause for AA1177 on DFW → DCA. 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 AA1177 comes in late, and what that does to the departure.
When the aircraft came in 15 or more minutes late, AA1177 pushed back an average of 35 minutes late; when it came in on time or early, an average of 4 minutes late.
Each departure is matched to the flight the same aircraft flew into DFW just before it, using the tail number in the DOT file, 870 of 1,032 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 |
|---|---|---|---|
| AA1177 | 14% | 42% | 14% |
| 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 AA1177’s aircraft landed 15 or more minutes late is lower than the network’s and, once the aircraft was late, how often AA1177 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 DFW late, does that still matter by the time it reaches DCA?
AA1177 pushes back an average of 10.4 minutes late and reaches the gate at DCA an average of 2.1 minutes early. The 12.5 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. It spends 19.3 minutes on the taxiways at DFW, 3.0 minutes shorter than a typical DFW departure in the same hour.
On arrival at DCA, AA1177 spends 4.7 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 2.9 minutes shorter than a typical DCA arrival (7.6 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 DCA. Taxi-out is gate to wheels up and sits inside the scheduled block rather than on top of it; the comparison is 92,608 departures from DFW scheduled in the clock hour AA1177 most often leaves in. Taxi-in is landing to gate, compared against every arrival FlyerIntel has on file at DCA (435,126 flights), not just AA1177’s own. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
The hour it leaves DFW
Part of any flight’s record belongs to the clock rather than to the flight. AA1177 has one departure time, so this is what that time is worth.
On-time arrival rate. 92,608 departures from DFW are scheduled in the 8 AM–9 AM hour over the period, against 961,718 across the whole day.
AA1177 is scheduled out of DFW at 8:32 AM, in the 8 AM–9 AM bank. Departures from DFW in that hour arrive on time 84.1% of the time against 73.1% across the airport’s whole day — the slot alone is worth 11.0 points better before anything about this particular flight is considered.
The two airport figures cover every departure from DFW 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 AA1177 run worse on particular days?
Thursday is historically the most reliable day and Tuesday the least, a gap of 7.4 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 AA1177 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 |
|---|---|---|---|
| DCA→DFW Washington to Dallas–Fort Worth | July 1, 2023 – July 31, 2026 | 1,032 | 76.1% |
| DFW→JAC Dallas–Fort Worth to Jackson | June 8, 2024 – August 3, 2024 | 9 | — |
Because the same number has served different journeys, the statistics above describe only the route AA1177 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.
27 min late
against a median of 12 min early
Percentiles over 1,056 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 |
|---|---|---|---|---|
| AA1623 | American Airlines | 88.3% | 10 min early | 621 |
| AA1177 this flight | American Airlines | 84.6% | 12 min early | 1,056 |
| AA2752 | American Airlines | 63.6% | 1 min late | 1,090 |
| AA472 | American Airlines | 59.8% | 5 min late | 1,076 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. AA1177 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 1,056 records of AA1177 operating DFW → DCA, 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