Historical on-time performance
Newark to St. Thomas
1,634 miData through May 2026Source: US DOT · BTS
Flights on EWR–STT arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 153 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time80%Medianon timep9045 minCancel1.3%Flights153
Why flights run late
Delay causes
- Airline48%
- Weather2%
- Air traffic (NAS)29%
- Late aircraft21%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather50%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 2 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 EWR → STT
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 84% to 87% on time.
- Saturdays87% on time · p90 20 min · 157 flights · limited
- Sundays84% on time · p90 30 min · 144 flights · limited
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