Flight profile · American Airlines
AA1940
Memphis (MEM) to Dallas–Fort Worth (DFW) · scheduled 5:00 AM – 7:09 AM
How AA1940 performs
961 operations, July 2023 – August 2026.
Between its first and last recorded date on MEM → DFW, AA1940 averaged about 6 operations a week (961 in 1,158 days, cancelled ones included).
AA1940 arrived on time 85.6% of the time, against 73.3% for all MEM → DFW flights, so this departure is 12.3 percentage points better than the route as a whole. Against American Airlines’ own flights on this route it is 13.2 points better.
Source: US DOT Bureau of Transportation Statistics · 961 operations, July 2023 – August 2026 · If AA1940 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 AA1940 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 96% of 12,152 comparable flight numbers.
85.6% on time for this specific departure, against 72.4% for the same carrier's other flights on this route.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 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 AA1940 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 |
|---|---|---|---|---|---|
| AA1940 | 85.6% | 3.02% | -15 min | 6.4% | 961 |
| American Airlines on MEM → DFW | 72.4% | 2.74% | -4 min | 10.3% | 5,332 |
| All MEM → DFW flights | 73.3% | 2.55% | -5 min | 10.3% | 7,816 |
AA1940 cancelled 29 of 961 operations (3.02%), close to the 2.55% for MEM → DFW.
6.4% of AA1940’s arrivals were an hour or more late, against 10.3% across MEM → DFW, so the long delays are less common on this number than on the route.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026
Why AA1940 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
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for AA1940 on MEM → DFW. Only delays of 15 minutes or more are attributed. What the five causes mean
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
Does a late aircraft delay this flight?
How often the plane that flies AA1940 comes in late, and what that does to the departure.
AA1940 is usually the aircraft’s first flight of the day: the schedule gives it a median of 6.7 hours on the ground at MEM, so its “inbound” is mostly the aircraft’s arrival the evening before.
When the aircraft came in 15 or more minutes late, AA1940 pushed back an average of 19 minutes late; when it came in on time or early, an average of 7 minutes late.
Matched by tail number to the aircraft’s previous flight into MEM: 902 of 932 departures. Unknown, cancelled or diverted inbounds and gaps over 12 hours are left out.
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 |
|---|---|---|---|
| AA1940 | 38% | 14% | 9% |
| Network, same turn | 29% | 12% | 9% |
A night on the ground absorbs most of a late arrival, so a late inbound matters far less here than on a same-day turn.
The network row is every flight with a scheduled turn of 6 hours or more, usually overnight. How often AA1940’s aircraft landed 15 or more minutes late is higher than the network’s and, once the aircraft was late, how often AA1940 left 15 or more minutes late is about the same as the network’s.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
From pushback to gate
When it leaves MEM late, does that still matter by the time it reaches DFW?
AA1940 pushes back an average of 13.2 minutes late and reaches the gate at DFW an average of 4.8 minutes late. The 8.3 minutes between those two figures are slack the published schedule already carries, so a late pushback is partly, not fully, made up before the gate. It spends 16.4 minutes on the taxiways at MEM, 2.2 minutes longer than a typical MEM departure in the same hour.
On arrival at DFW, AA1940 spends 13.8 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 DFW spends on the ground before reaching the gate.
Taxi-out is gate to wheels up and sits inside the scheduled block; the hourly comparison is 5,529 MEM departures. Taxi-in is landing to gate, set against 988,998 arrivals at DFW. More on taxi time.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026
The hour it leaves MEM
AA1940 has one departure time, 5:00 AM, so this is what that hour at MEM is worth.
On-time arrival rate. 5,529 departures from MEM are scheduled in the 5 AM–6 AM hour over the period, against 74,899 across the whole day.
AA1940 is scheduled out of MEM at 5:00 AM, in the 5 AM–6 AM bank. Departures from MEM in that hour arrive on time 89.2% of the time against 81.1% across the airport’s whole day — the slot alone is worth 8.0 points better before anything about this particular flight is considered.
Both airport figures cover every destination from MEM, so they describe the slot, not this journey; the route comparison is above. Why the hour matters.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · Hours below 120 departures are not scored.
By day of week
Does AA1940 run worse on particular days?
Tuesday scored highest and Saturday lowest, 4.6 points apart, but with about 137 operations per scored day that is within what chance alone produces, so no day stands out.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · Days with fewer than 120 operations are not scored.
Other routes AA1940 has flown
Carriers reassign flight numbers. AA1940 also served these 3 other city pairs in the period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| DFW→SJC Dallas–Fort Worth to San Jose | June 5, 2025 – August 4, 2026 | 110 | 56.1% |
| RSW→ORD Fort Myers to Chicago | October 7, 2024 – November 3, 2024 | 16 | — |
| ORD→RSW Chicago to Fort Myers | October 7, 2024 – November 3, 2024 | 15 | — |
The figures above describe only MEM → DFW, the route AA1940 flies now.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
25 min late
against a median of 15 min early
Percentiles over 961 operations; cancelled and diverted flights are counted separately.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026
Other flights on this route
Same airports, same journey, different odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| AA1940 this flight | American Airlines | 85.6% | 15 min early | 961 |
| AA1825 | American Airlines | 70.4% | 2 min early | 603 |
Among all 2 departures on this route with at least 600 operations, AA1940 has the highest on-time rate. Every departure here has at least 600 operations; the other rows are the most punctual on the route, not all of them.
Data and methodology
Calculated by FlyerIntel from 961 records of AA1940 operating MEM → 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 reported separately, not in the on-time rate.
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