Flight number record
AA 1771
American Airlines · Dallas-Fort Worth to Las Vegas
- Route
- DFW → LAS
- Departs
- 18:20
- Flights
- 320
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s AA 1771, check with American Airlines.
AA 1771 draws a D−. Roughly one flight in two arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 320 flights, with a median arrival 6 minutes late.
The national on-time rate over the same period is 77.3%, so AA 1771 runs 19 points behind the country as a whole. Across a thousand flights that is about 185 extra late arrivals.
Key figures
On time
58.8%
Arrivals under 15 minutes late, of 306 completed flights
Avg delay
84 min
Across delayed arrivals only, not all flights
Cancelled
4.06%
National rate is 1.89%
1 hour+ late
18.0%
National rate is 8.3%
These figures cover 320 flights between September 2025 and August 2026. Beyond the headline rate, 18.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When AA 1771 flies
AA 1771 flies DFW to LAS without a single fixed slot. Its most common scheduled departure was 18:20, used on 51 of 320 flights, with 19:05 (44 flights) and 19:21 (38 flights) next.
- Departs 18:2051 flights15.9%
- Departs 19:0544 flights13.8%
- Departs 19:2138 flights11.9%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 18:20 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and AA 1771 runs 9 points worse at 58.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
AA 1771 next to DFW to LAS
Every carrier on DFW to LAS combined arrived on time 68.8% of the time across 5,138 flights, so AA 1771 is 10 points behind it. American flew 4,003 flights on the same city pair under all its flight numbers, including this one, and those ran 67.1% on time. Across its whole network American Airlines managed 74.7%, which this flight trails by 16 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AA 1771thin sample | 320 | 58.8% | 84 min | 4.06% | D− |
| All American Airlines on DFW–LAS | 4,003 | 67.1% | 69 min | 2.55% | C |
| All carriers on DFW–LAS | 5,138 | 68.8% | 70 min | 2.41% | C |
| American Airlines, whole network | 988,892 | 74.7% | 85 min | 2.14% | C |
Across the year
AA 1771 quarter by quarter
AA 1771 did not run the same all year. Its best quarter was Jan–Mar 2026 at 71.4% on time and its weakest Jul–Sep 2026 at 42.0%, a swing of 29 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 20259 flights—
- Oct–Dec 202584 flights61.4%
- Jan–Mar 202690 flights71.4%
- Apr–Jun 202686 flights56.2%
- Jul–Sep 202651 flights42.0%
Scale runs 35% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, AA 1771 did best on Wednesday at 78.0% on time and worst on Sunday at 41.7%. Each day rests on about 46 flights, so a gap of 36 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late AA 1771 runs when it is late
The 126 late arrivals split 29 under half an hour, 42 between 30 and 60 minutes, and 55 an hour or more.
- 15+ min early51 flights16.7%
- Within 15 min129 flights42.2%
- 15–29 min late29 flights9.5%
- 30–59 min late42 flights13.7%
- 1–2 hours late28 flights9.2%
- 2+ hours late27 flights8.8%
Scale runs 0% to 100%.
Share of 306 completed flights by arrival against schedule.
20 of 140 late departures made up the time and arrived on time, 14% of them. Only 6 left on time and still arrived late.
The worst days
Worst days for AA 1771
The latest arrival of the period was on 25 June 2026, 10 hours 7 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 25 June 2026 | 10 hours 7 minutes | Late-arriving aircraft |
| 10 May 2026 | 6 hours 24 minutes | Late-arriving aircraft |
| 14 August 2026 | 6 hours 1 minute | Carrier |
| 20 July 2026 | 5 hours 53 minutes | Late-arriving aircraft |
| 25 May 2026 | 4 hours 31 minutes | Late-arriving aircraft |
Delay causes
Why AA 1771 runs late
Late-arriving aircraft accounts for 63% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 63%Late-arriving aircraft
- 25%Carrier
- 9%National Airspace System
- 3%Extreme weather
63% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 11,000 reported delay minutes here, that single category outweighs weather by 20 to one. The split is drawn from 10,564 delay minutes reported on AA 1771.
Cancellations run at 4.06%, against 1.89% nationally. That is about one flight in 25 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
18.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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.
The same number turns up on one other city pair in the data, including PHL to SFO (3), but none flew often enough under AA 1771 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. 320 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 1771
For a booking, the cancellation rate is the figure to plan around on AA 1771: 4.06% of its 320 scheduled flights did not operate. A late arrival costs an hour and a half, 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 route72.9%
- American Airlines 1584 on the same route85.4%
- Frontier Airlines 3885 on the same route70.1%
- American Airlines 1797 on the same route56.2%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.