Historical on-time performance
Newark to St. Thomas
1,634 miData through Dec 2025Source: US DOT · BTS
Flights on EWR–STT arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.0%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-time81%Medianon timep9030 minCancel0.0%Flights153
Why flights run late
Delay causes
- Airline28%
- Weather3%
- Air traffic (NAS)52%
- Late aircraft17%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 77% to 86% on time.
- Mornings86% on time · p90 20 min · 637 flights
- Middays77% on time · p90 40 min · 96 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 88% on time.
- Mondays88% on time · p90 20 min · 88 flights · limited
- Sundays86% on time · p90 25 min · 144 flights · limited
- Saturdays86% on time · p90 20 min · 156 flights · limited
- Wednesdays85% on time · p90 15 min · 88 flights · limited
- Fridays85% on time · p90 20 min · 84 flights · limited
- Tuesdays83% on time · p90 30 min · 88 flights · limited
- Thursdays76% on time · p90 40 min · 85 flights · limited
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