Historical on-time performance
Dallas-Fort Worth to San Juan
2,165 miData through Dec 2025Source: US DOT · BTS
Flights on DFW–SJU arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 732 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Spirit AirlinesOn-time71%Medianon timep9055 minCancel0.0%Flights182
- American AirlinesOn-time66%Medianon timep9055 minCancel0.4%Flights550
Why flights run late
Delay causes
- Airline34%
- Weather7%
- Air traffic (NAS)24%
- Late aircraft34%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DFW → SJU
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 47% to 79% on time.
- Mornings79% on time · p90 35 min · 1,260 flights
- Middays73% on time · p90 55 min · 233 flights
- Afternoons71% on time · p90 80 min · 339 flights
- Overnights59% on time · p90 70 min · 386 flights
- Evenings47% on time · p90 90 min · 460 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 74% on time.
- Thursdays74% on time · p90 50 min · 393 flights
- Saturdays70% on time · p90 55 min · 402 flights
- Mondays69% on time · p90 60 min · 402 flights
- Wednesdays69% on time · p90 55 min · 342 flights
- Sundays67% on time · p90 65 min · 399 flights
- Tuesdays67% on time · p90 55 min · 344 flights
- Fridays66% on time · p90 65 min · 396 flights
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