Route on-time record
EWR to SFO: most on-time flights and the best time to fly
Newark (Newark Liberty International Airport) to San Francisco (San Francisco International Airport). 4,416 nonstop flights in Jun 2025 to May 2026, 71% arrived within 15 minutes and 2.5% were cancelled. The most reliable flight number was Alaska 595 at 7:50 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
EWR → SFO
Newark to San Francisco: 4,416 nonstop flights a year
On time (12 months)
71%
Cancelled
2.5%
avg delay 27 min
Best time to leave
Before 9 AM
78% on time vs 59% 6 to 9 PM
Most reliable airline
Alaska
74% chance on time
Lowest nonstop fare seen in the next two months: $191 (United 1914 on 2026-11-07). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Alaska 595
7:50 AM → 11:28 AM6h 38m nonstop
Local times, typical schedule. Last flown 2026-04-21.
84%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 94% of the time (35 flights, Jun 2025 to May 2026).
- Never cancelled in 35 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 78% on time; 6 to 9 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Limited track record · 35 flights
Find Alaska 595 fares Opens this date on Aviasales#2 · United 2115
6:00 AM → 9:30 AM6h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 84%
- Cancelled
- 2.3%
- Avg arrival delay
- 12 min
- Arrived on time 84% of the time (338 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 78% on time; 6 to 9 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Lands inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
Strong track record · 338 flights
Find United 2115 fares Opens this date on Aviasales#3 · Alaska 364
8:30 AM → 11:58 AM6h 28m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 89% of the time (19 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 78% on time; 6 to 9 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Lands inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
Limited track record · 19 flights
Find Alaska 364 fares Opens this date on Aviasales#4 · Alaska 344
7:59 AM → 11:25 AM6h 26m nonstop
Local times, typical schedule. Last flown 2026-05-12.
80%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 86% of the time (21 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 78% on time; 6 to 9 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
- Lands inside SFO's trouble window: 61% of its 333 ground stops and delay programs started between 7 AM and 1 PM.
Limited track record · 21 flights
Find Alaska 344 fares Opens this date on Aviasales#5 · United 1227
1:00 PM → 5:35 PM6h 11m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 76%
- Cancelled
- 2.7%
- Avg arrival delay
- 27 min
- Arrived on time 76% of the time (317 flights, Jun 2025 to May 2026).
- Departs inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
Strong track record · 317 flights
Find United 1227 fares Opens this date on Aviasales#6 · United 2080
4:00 PM → 7:30 PM6h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 2004; its record covers all of them.
72%
chance on time
- On time (history)
- 78%
- Cancelled
- 1.6%
- Avg arrival delay
- 18 min
- Arrived on time 78% of the time (60 flights, Jun 2025 to May 2026).
- Departs inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.
Moderate track record · 60 flights
Find United 2080 fares Opens this date on Aviasales#7 · United 1777
8:00 AM → 11:20 AM6h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
71%
chance on time
- On time (history)
- 73%
- Cancelled
- 3.5%
- Avg arrival delay
- 23 min
- Arrived on time 73% of the time (335 flights, Jun 2025 to May 2026).
- Cancelled 3.5% of the time (12 of 347).
- Leaves in this route's most on-time window (Before 9 AM: 78% on time; 6 to 9 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Strong track record · 335 flights
Find United 1777 fares Opens this date on Aviasales#8 · United 1960
7:05 AM → 10:25 AM6h 20m nonstop
Local times, typical schedule. Last flown 2026-05-31.
71%
chance on time
- On time (history)
- 74%
- Cancelled
- 4.3%
- Avg arrival delay
- 32 min
- Arrived on time 74% of the time (309 flights, Jun 2025 to May 2026).
- Cancelled 4.3% of the time (14 of 324).
- Leaves in this route's most on-time window (Before 9 AM: 78% on time; 6 to 9 PM: 59%).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Strong track record · 309 flights
Find United 1960 fares Opens this date on Aviasales#9 · United 648
9:40 AM → 1:10 PM6h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
70%
chance on time
- On time (history)
- 71%
- Cancelled
- 1.4%
- Avg arrival delay
- 25 min
- Arrived on time 71% of the time (357 flights, Jun 2025 to May 2026).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Strong track record · 357 flights
Find United 648 fares Opens this date on Aviasales#10 · United 1343
11:20 AM → 3:01 PM6h 32m nonstop
Local times, typical schedule. Last flown 2026-05-31.
70%
chance on time
- On time (history)
- 72%
- Cancelled
- 1.6%
- Avg arrival delay
- 28 min
- Arrived on time 72% of the time (358 flights, Jun 2025 to May 2026).
- Departs outside EWR's trouble window (1 PM to 7 PM, when 65% of its 259 ground stops and delay programs started).
Strong track record · 358 flights
Find United 1343 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Alaska Airlines74%
663 flights · 75% on time as flown · 1.6% cancel
- United Airlines69%
3,753 flights · 70% on time as flown · 2.7% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM78%
1,281 flights · avg delay 20 min
- 9 AM to noon74%
675 flights · avg delay 24 min
- Noon to 3 PM73%
738 flights · avg delay 29 min
- 3 to 6 PM69%
821 flights · avg delay 33 min
- 6 to 9 PM59%
900 flights · avg delay 34 min
Best day: Tuesday (79%). Worst: Thursday (71%).
Smarter routing
Nearby airports that run more on time
JFK → SFO 73% chance on time
John F. Kennedy International Airport to San Francisco International Airport · 6,707 flights a year · 21 mi from your airports · yours: 69%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)35%
- Late-arriving aircraft33%
- Air traffic control and airport volume27%
- Severe weather5%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
EWR to SFO questions
- What time of day is best to fly EWR to SFO?
- Before 9 AM: 78% of flights arrived on time, against 59% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from EWR to SFO?
- Alaska, with a season-adjusted 74% chance of operating and arriving on time over 663 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on EWR to SFO?
- July (61% on time); the best was January (81%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from EWR
- SFO to EWR (return)
- EWR to MCO 76%
- EWR to ATL 77%
- EWR to ORD 71%
- EWR to LAX 72%
- EWR to FLL 75%
- EWR to MIA 77%
- EWR to BOS 71%
- EWR to CLT 80%
- EWR to IAH 79%
- EWR to DTW 79%
- EWR to PBI 77%
- EWR to DFW 79%
Live status: FAA delays and ground stops