Carrier route record
AADFW→SJU
American Airlines · Dallas-Fort Worth to San Juan
- Flights
- 703
- Period
- September 2025 to August 2026
- Share of route
- 72%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.
American on DFW to SJU sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 703 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so American on DFW to SJU runs 8 points behind the country as a whole. Across a thousand flights that is about 79 extra late arrivals.
Key figures
On time
69.4%
Arrivals under 15 minutes late, of 692 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
1.42%
National rate is 1.89%
Whole route
70.1%
Every carrier on DFW to SJU, 971 flights
These figures cover 703 flights between September 2025 and August 2026. Beyond the headline rate, 10.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
American against every carrier on DFW to SJU
American flew 703 of the 971 flights on DFW to SJU, most of the route. Its 69.4% on time is about level with the route as a whole at 70.1%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Spirit at 76.9% to Frontier at 61.8%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Spirit Airlinesthin sample | 184 | 76.9% | 112 min | 5.98% | B− |
| American Airlines (this page) | 703 | 69.4% | 61 min | 1.42% | C |
| Frontier Airlinesthin sample | 84 | 61.8% | 56 min | 9.52% | D− |
Flight by flight
American flight numbers on DFW to SJU
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 25 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am279 flights83.9%
- 11am–2pm—
- 2pm–5pm83 flights58.8%
- 5pm–8pm174 flights59.5%
- 8pm–5am167 flights60.6%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 83.9% of the time, against 58.8% for the afternoon window. That is 25 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 279 flights scheduled in it.
Across the year
American on DFW to SJU through the year
June is the worst month at 48.3% on time, 39 points below November, the best at 87.5%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. April was the busiest month here, with 85 flights.
Across the week, Wednesday is the strongest day at 76.8% on time and Monday the weakest at 61.0%, a spread of 16 points.
Arrival by arrival
How late American on DFW to SJU runs when it is late
The 212 late arrivals split 76 under half an hour, 65 between 30 and 60 minutes, and 71 an hour or more.
- 15+ min early136 flights19.7%
- Within 15 min344 flights49.7%
- 15–29 min late76 flights11.0%
- 30–59 min late65 flights9.4%
- 1–2 hours late46 flights6.6%
- 2+ hours late25 flights3.6%
Scale runs 0% to 100%.
Share of 692 completed flights by arrival against schedule.
59 of 246 late departures made up the time and arrived on time, 24% of them. 25 flights left on time and still arrived late.
The worst days
Worst days for American on DFW to SJU
The latest arrival of the period was on 12 June 2026, 7 hours 10 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 12 June 2026 | 7 hours 10 minutes | Late-arriving aircraft |
| 7 March 2026 | 5 hours 23 minutes | Late-arriving aircraft |
| 2 June 2026 | 4 hours 59 minutes | Late-arriving aircraft |
| 26 July 2026 | 4 hours 31 minutes | Late-arriving aircraft |
| 25 January 2026 | 4 hours 21 minutes | Late-arriving aircraft |
Delay causes
Why American runs late on this route
Late-arriving aircraft accounts for 42% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 42%Late-arriving aircraft
- 40%Carrier
- 10%Extreme weather
- 8%National Airspace System
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 13,000 reported delay minutes here, that single category outweighs weather by 4 to one. The split is drawn from 12,840 reported delay minutes.
The largest share of delay minutes, 40%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 5,110 of the 13,000 delay minutes reported here.
Cancellations sit at 1.42% against a national 1.89%, which is ordinary. Diversions add another 0.14%.
Connections and stage length
What a delay here costs
10.3% 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.
At 2,165 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg is a different operation and performs like one: it runs 82.7% on time across 704 flights, 13 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 13 points of difference.
One caution: this is a thin sample. 703 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 American on DFW to SJU
Put together: treat all of this as provisional. 703 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 69.4% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 692 completed flights over 12 months sit behind that.
Related
Where to go next
- DFW to SJU, every carrier
- American on SJU to DFW, the return leg
- Spirit Airlines on DFW to SJU76.9%
- American Airlines network-wide record
- Dallas/Fort Worth International (DFW) delay statistics
- Luis Munoz Marin International (SJU) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
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.