Flight number record
AA 1797
American Airlines · Dallas-Fort Worth to Las Vegas
- Route
- DFW → LAS
- Departs
- 21:00
- Flights
- 321
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s AA 1797, check with American Airlines.
AA 1797 earns an F, which is as low as this site's scale goes for a reason. Only 54.3% of flights arrive inside the 15-minute window, 23 points worse than the national rate of 77.6%. Late arrivals average about an hour. Treat any tight connection here as a coin flip. That rests on 321 flights, with a median arrival 10 minutes late.
The national on-time rate over the same period is 77.6%, so AA 1797 runs 23 points behind the country as a whole. Across a thousand flights that is about 233 extra late arrivals.
Key figures
On time
54.3%
Arrivals under 15 minutes late, of 311 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
2.80%
National rate is 1.81%
1 hour+ late
17.4%
National rate is 8.1%
These figures cover 321 flights between July 2025 and June 2026. Beyond the headline rate, 17.4% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When AA 1797 flies
AA 1797 flies DFW to LAS without a single fixed slot. Its most common scheduled departure was 21:00, used on 51 of 321 flights, with 20:56 (45 flights) and 20:55 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 21:0051 flights15.9%
- Departs 20:5645 flights14.0%
- Departs 20:5542 flights13.1%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 21:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and AA 1797 runs 16 points worse at 54.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
AA 1797 next to DFW to LAS
Every carrier on DFW to LAS combined arrived on time 69.2% of the time across 5,163 flights, so AA 1797 is 15 points behind it. American flew 3,982 flights on the same city pair under all its flight numbers, including this one, and those ran 66.7% on time. Across its whole network American Airlines managed 74.4%, which this flight trails by 20 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 1797thin sample | 321 | 54.3% | 68 min | 2.80% | F |
| All American Airlines on DFW–LAS | 3,982 | 66.7% | 71 min | 3.04% | C− |
| All carriers on DFW–LAS | 5,163 | 69.2% | 72 min | 2.75% | C |
| American Airlines, whole network | 986,297 | 74.4% | 85 min | 2.29% | C |
Across the year
AA 1797 quarter by quarter
AA 1797 did not run the same all year. Its best quarter was Oct–Dec 2025 at 59.5% on time and its weakest Jul–Sep 2025 at 46.0%, a swing of 14 points on roughly 80 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202591 flights46.0%
- Oct–Dec 202586 flights59.5%
- Jan–Mar 202659 flights56.9%
- Apr–Jun 202685 flights56.1%
Scale runs 40% to 65%. Rows with fewer than 30 flights show a dash.
By weekday, AA 1797 did best on Wednesday at 71.4% on time and worst on Sunday at 33.3%. Each day rests on about 46 flights, so a gap of 38 points is worth noticing but could still narrow in another year.
Delay causes
Why AA 1797 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 9,632 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 44%Late-arriving aircraft
- 25%Carrier
- 18%National Airspace System
- 13%Extreme weather
Extreme weather accounts for 13% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.1 times the usual weather exposure. The split is drawn from 9,632 delay minutes reported on AA 1797.
Cancellations run at 2.80%, against 1.81% nationally. That is roughly one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 17.4% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 1,055 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on one other city pair in the data, including MIA to PHL (9), but none flew often enough under AA 1797 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DFW to LAS only.
One caution: this is a thin sample. 321 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking AA 1797
For a booking, the cancellation rate is the figure to plan around on AA 1797: 2.80% of its 321 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- DFW to LAS, every carrier and departure
- LAS to DFW, the return direction
- American Airlines 777 on the same route72.8%
- American Airlines 1771 on the same route56.0%
- American Airlines 1584 on the same route83.8%
- Frontier Airlines 3885 on the same route73.5%
- Dallas/Fort Worth International (DFW) delay statistics
- Harry Reid International (LAS) delay statistics
- American Airlines on-time record
- Every American Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means American Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.