Historical on-time performance
San Francisco to Newark
2,565 miData through May 2026Source: US DOT · BTS
Flights on SFO–EWR arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights
based on 4,361 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesbestOn-time84%Medianon timep9035 minCancel0.7%Flights611
- United AirlinesOn-time72%Medianon timep9070 minCancel2.4%Flights3,750
Why flights run late
Delay causes
- Airline27%
- Weather0%
- Air traffic (NAS)28%
- Late aircraft45%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline52%
- Weather43%
- Air traffic (NAS)5%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 94 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 SFO → EWR
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 80% on time.
- Mornings80% on time · p90 40 min · 3,703 flights
- Overnights77% on time · p90 40 min · 4,088 flights
- Afternoons69% on time · p90 80 min · 2,046 flights
- Middays62% on time · p90 95 min · 2,828 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 79% on time.
- Tuesdays79% on time · p90 35 min · 1,798 flights
- Mondays74% on time · p90 55 min · 1,839 flights
- Wednesdays74% on time · p90 60 min · 1,817 flights
- Saturdays73% on time · p90 60 min · 1,691 flights
- Fridays73% on time · p90 55 min · 1,845 flights
- Thursdays72% on time · p90 65 min · 1,835 flights
- Sundays70% on time · p90 75 min · 1,842 flights
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