Historical on-time performance
Dallas-Fort Worth to San Juan
Flights on DFW–SJU arrive on time 66% of the time over the last 12 months.
based on 758 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Spirit AirlinesOn-time67%Median5 minp9035 minCancel3.7%Flights107
- American AirlinesOn-time65%Medianon timep9060 minCancel1.7%Flights651
Why flights run late
Delay causes
- Airline42%
- Weather10%
- Air traffic (NAS)14%
- Late aircraft34%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline13%
- Weather67%
- Air traffic (NAS)20%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 15 cancellations with a reported cause (BTS reports causes from June 2003).
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 (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 49% to 78% on time.
- Mornings78% on time · p90 35 min · 1,449 flights
- Middays73% on time · p90 55 min · 233 flights
- Afternoons68% on time · p90 65 min · 297 flights
- Overnights59% on time · p90 70 min · 486 flights
- Evenings49% on time · p90 90 min · 493 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 75% on time.
- Thursdays75% on time · p90 45 min · 440 flights
- Mondays70% on time · p90 60 min · 438 flights
- Wednesdays69% on time · p90 50 min · 376 flights
- Saturdays67% on time · p90 60 min · 446 flights
- Tuesdays67% on time · p90 55 min · 373 flights
- Fridays67% on time · p90 60 min · 441 flights
- Sundays66% on time · p90 65 min · 444 flights
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