DFW to SJU flight delays
Dallas/Fort Worth, TX (DFW) San Juan, PR (SJU) · 2,165 miles
989 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
69.47%
Arrived on time
Within 15 minutes of schedule
2.53%
Cancelled
Share of scheduled flights
70 min
When late, late by
Average across delayed arrivals
23 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The cancellation rate for the period is 2.53%, but almost all of it belongs to one month: January 2026, when 15.69% of flights on this route did not operate. Outside that month the route cancelled at around 1.01%. Whatever happened in January was an event, not the normal state of this route.
The season swings this route hard. In September it ran 41.4 points more punctual than in June — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Which airline you fly changes the odds here. Spirit Airlines arrived on time 8.5 points more often than American Airlines over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The two directions do not behave alike. SJU to DFW arrives on time 9.3 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Which airline should you fly on this route?
Over January 2025 – August 2026, Spirit Airlines arrived on time most often on DFW to SJU. American Airlines was late most often. Flights ran closest to schedule in September and worst in June.
Every airline on DFW to SJU
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| American Airlines | 702 | 67.68% | 1.57% | 62 min | D |
| Spirit Airlines | 250 | 76.15% | 4.4% | 103 min | D |
| Frontier Airlines | 37 | 58.82% | 8.11% | 58 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
Other routes from Dallas/Fort Worth
Common questions
Are flights from Dallas/Fort Worth to San Juan usually delayed?
69.47% of flights on the DFW to SJU route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airline is most on time from Dallas/Fort Worth to San Juan?
Spirit Airlines, at 76.15% on time across 250 flights. The least punctual on the route was American Airlines at 67.68%.
How often are DFW to SJU flights cancelled?
2.53% of scheduled flights did not operate — about 25 in every thousand. That is high enough that cancellation, not delay, is the risk worth planning around.
What is the best month to fly Dallas/Fort Worth to San Juan?
September, when 89.7% of flights arrived on time. The worst was June at 48.3%.
When DFW to SJU flights are late, how late are they?
About 70 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on DFW to SJU during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →