Route profile
EWR→SNA
Flight reliability, delays and best times to fly from Newark to Santa Ana, 2,434 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 82% of comparable major US routes (4,598 compared)
Calculated from 3,368 flights. How this is calculated
EWR → SNA arrives on time 85.5% of the time; the return trip, SNA → EWR, arrives on time 81.9% of the time, a 3.6-point gap between the two directions of the same city pair.
EWR → SNA spends 29.6 minutes on the ground on a 2,434-mile trip: 23.5 minutes from pushback to wheels-up at EWR and 6.1 minutes from touchdown to gate at SNA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
This route has stayed remarkably steady year over year, a smaller swing than 97% of 5,368 comparable routes.
85.5% on time over the most recent 12 months (2025-08 to 2026-07), against 85.3% in the 12 months before (2024-08 to 2025-07), virtually unchanged.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 5,368 in the comparison.
What sets this route apart
Where EWR to SNA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
EWR to SNA is at its best against routes of similar length for flights scheduled at 6 PM: 82.1% arrive on time, 13.9 points ahead of the 68.2% those routes manage at that hour. Against all other routes the gap is 13.6 points.
EWR to SNA holds up on Fridays better than routes of similar length do: 86.8% on time to their 77.3%, a 9.5 points lead. Against all other routes the gap is 10.6 points.
June is kinder to EWR to SNA than to routes of similar length: 84.0% on time against 74.3%, 9.7 points better. Against all other routes the gap is 11.3 points.
United Airlines does better on EWR to SNA than on its routes of similar length: 85.5% on time here, 80.9% there, 4.6 points apart. Against all other routes the gap is 5.6 points.
EWR to SNA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 6 PM departures | 82.1% | routes of similar length | 68.2% | +13.9 pts | 739 here, 61,659 there |
| Weekday: Friday | 86.8% | routes of similar length | 77.3% | +9.5 pts | 471 here, 159,600 there |
| Month: June | 84.0% | routes of similar length | 74.3% | +9.7 pts | 263 here, 95,391 there |
| Airline: United Airlines | 85.5% | routes of similar length | 80.9% | +4.6 pts | 3,276 here, 228,262 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 2,434 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
Why EWR → SNA flights are cancelled
July 2023 – July 2026
EWR → SNA cancelled 54 of 3,368 scheduled flights — about 1 in every 62. The reason filed most often was extreme weather, 57.4% of the cancellations coded on this route — about 1 in every 109 scheduled flights.
Share of cancellations
Of 54 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
31 cancellations, 57.4% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
12 cancellations, 22.2% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
11 cancellations, 20.4% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. With only one or two carriers on the route, the split mostly reflects how they file. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
54 coded cancellations were recorded on EWR → SNA; the section appears from 50.
When it goes wrong
July 2023 – July 2026
28 min late
against a median of 14 min early
Percentiles over 3,368 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at SNA after arriving from EWR.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 25% | High risk |
| 45 min | 14% | Some risk |
| 60 min | 9.4% | Some risk |
| 90 min | 5.1% | Some risk |
| 120 min | 2.9% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.60% of the time and diverts 1.13% of the time, which a late arrival never shows up in.
Chance of missing is the share of 3,276 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 28 minutes late (90th-percentile gate arrival delay), over 3,368 operations.
Any other layover length: connection checker.
Best time to fly
EWR → SNA flights departing 5–9 AM arrived on time 91.2% of the time, against 78.4% for 3–6 PM departures, a gap of 12.8 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 91.9% on time from 540 flights
- 7 AM: 90.1% on time from 529 flights
- 8 AM to 12 PM: too few flights to score
- 1 PM: 85.6% on time from 448 flights
- 2 PM: 84.9% on time from 544 flights
- 3 PM to 4 PM: too few flights to score
- 5 PM: 79.5% on time from 228 flights
- 6 PM: 82.1% on time from 786 flights
- 7 PM to 11 PM: too few flights to score
Why EWR → SNA runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for EWR → SNA. Only delays of 15 minutes or more are attributed.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| United Airlines | 3,368 | 85.5% | 1.60% | -14 min | 5.3% |
Other ways to fly New York to Los Angeles
Airport pairs in the same two city markets, as the DOT defines them.
EWR → SNA is the most reliable pairing for this journey at 85.5% on time, against 74.5% for EWR → LAX.
Flying to SNA from the New York area? Compare EWR, LGA, JFK for SNA, with the same test for what counts as a real difference.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 12.1 percentage points.
By month
- Jan: 87.5%
- Feb: 83.3%
- Mar: 88.0%
- Apr: 87.5%
- May: 83.3%
- Jun: 84.0%
- Jul: 75.3%
- Aug: 86.4%
- Sep: 89.7%
- Oct: 87.7%
- Nov: 87.2%
- Dec: 88.4%
July is historically the weakest month and September the strongest, a spread of 14.4 percentage points.
Reliability over time
July 2023 – July 2026
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 85.5% against 85.3% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 3,368 EWR → SNA flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed