SFO to EWR flight delays & on-time performance
Nonstop flights from San Francisco International Airport to Newark Liberty International Airport · 2,565 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SFO or EWR right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Francisco (SFO) to Newark (EWR) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2% were cancelled, and 10% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (88% on time); United Airlines was the least (75%).
- Departures scheduled around 6am did best (92% on time); around 1pm did worst (57%).
- Tuesday was the most reliable day to fly (81% on time) and Sunday the least (71%).
- The largest source of delay minutes was late-arriving aircraft (48%).
Which airline is most on time from SFO to EWR?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Alaska Airlines | 88% | 0.9% | 7 min | 4.4% | 549 |
| United Airlines | 75% | 2.2% | 21 min | 10.9% | 3,822 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%207 flights
- 7am91%536 flights
- 8am85%362 flights
- 9am67%89 flights
- 10am72%379 flights
- 11am72%360 flights
- 12pm63%81 flights
- 1pm57%359 flights
- 2pm63%242 flights
- 3pm73%114 flights
- 4pm69%315 flights
- 9pm83%526 flights
- 10pm82%390 flights
- 11pm77%409 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday76%3.0% cancelled
- Tuesday81%1.3% cancelled
- Wednesday78%1.3% cancelled
- Thursday76%1.7% cancelled
- Friday80%0.6% cancelled
- Saturday76%1.9% cancelled
- Sunday71%4.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft48%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion25%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather54%
- Airline (crew, maintenance, cleaning, fueling)44%
- Air traffic control & airport congestion2%
- Security0%
SFO to EWR: common questions
- How often are SFO to EWR flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from San Francisco to Newark cancelled?
- 2.0% of scheduled flights were cancelled (89 of 4,371).
- How long are typical delays?
- Across all flights the average arrival delay was 19 min (early arrivals count as zero). Flights that were late arrived 80 min behind schedule on average, and 10.1% of flights were an hour or more late.
- How long is taxi time at SFO?
- Flights on this route spent 25 min taxiing from the gate to takeoff on average.
Related routes
Return trip: EWR to SFO — 69% on time
More flights from San Francisco
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SFO → EWR, nonstop flights by US airlines that report to the DOT. How we calculate this.