Historical on-time performance
Raleigh-durham to San Juan
1,433 miData through Dec 2025Source: US DOT · BTS
Flights on RDU–SJU arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 228 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- JetBlue AirwaysOn-time78%Medianon timep9060 minCancel0.4%Flights228
Why flights run late
Delay causes
- Airline21%
- Weather0%
- Air traffic (NAS)11%
- Late aircraft68%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly RDU → SJU
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 77% on time.
- Mornings77% on time · p90 40 min · 191 flights · limited
- Afternoons69% on time · p90 65 min · 672 flights
- Middays66% on time · p90 105 min · 327 flights
- Evenings63% on time · p90 95 min · 150 flights · limited
- Overnights63% on time · p90 80 min · 195 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 63% to 72% on time.
- Tuesdays72% on time · p90 85 min · 185 flights · limited
- Fridays72% on time · p90 65 min · 254 flights
- Sundays69% on time · p90 60 min · 222 flights
- Wednesdays69% on time · p90 65 min · 185 flights · limited
- Thursdays66% on time · p90 75 min · 215 flights
- Mondays65% on time · p90 80 min · 252 flights
- Saturdays63% on time · p90 75 min · 222 flights
Advertisement
Keep exploring