Live signal for EWR to SAN · Updated September 23, 2026
Flights from Newark to San Diego
What have fares historically cost? — Newark (EWR) to San Diego (SAN)
Historical prices in USD for Newark (EWR) to San Diego (SAN) (round-trip) ranged from $307 to $887 across 312 accepted price checks from 2026-06-26 through 2026-09-23, inclusive; source: SERPRadio verified price observations; these are historical observations, not fares available to buy now. The latest accepted price check for Newark (EWR) to San Diego (SAN) was observed on 2026-09-23, based on 1 accepted observation from 2026-09-23 through 2026-09-23; source: SERPRadio verified price observations.
Observed prices by departure day — Newark (EWR) to San Diego (SAN)
For Newark (EWR) to San Diego (SAN), historical round-trip USD median prices by departure weekday were Monday $463 (52 checks); Tuesday $373 (31 checks); Wednesday $384 (25 checks); Thursday $468 (56 checks); Friday $417 (52 checks); Saturday $395.5 (46 checks); Sunday $542 (50 checks), from 312 accepted price checks observed from 2026-06-26 through 2026-09-23; source: SERPRadio verified price observations. Comparisons describe only qualifying captured departure-day cells, not a recommendation for all flights.
Observed prices by departure month — Newark (EWR) to San Diego (SAN)
For Newark (EWR) to San Diego (SAN), historical round-trip USD median prices by departure month were 2026-07 $462 (21 checks); 2026-08 $462 (125 checks); 2026-09 $415 (111 checks); 2026-10 $466 (55 checks), from 312 accepted price checks observed from 2026-06-26 through 2026-09-23; source: SERPRadio verified price observations. Named-month comparisons do not establish annual seasonality.
How reliable were these flights? — Newark (EWR) to San Diego (SAN)
Across 973 Newark (EWR) to San Diego (SAN) flights reported from 2025-09-01 through 2026-04-30, 84.5% of departures were on time; source: U.S. Department of Transportation. Across 973 Newark (EWR) to San Diego (SAN) flights reported from 2025-09-01 through 2026-04-30, 2.0% were canceled; source: U.S. Department of Transportation.
Which departure days were most reliable? — Newark (EWR) to San Diego (SAN)
For Newark (EWR) to San Diego (SAN), Wednesday and Tuesday were the most reliable departure days among the qualifying weekday groups across 973 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation. For Newark (EWR) to San Diego (SAN), Sunday and Saturday were the least reliable departure days among the qualifying weekday groups across 973 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
United Airlines posted 84.6% on-time departures, across 973 flights in 8 months of U.S. Department of Transportation reporting from September 2025 through April 2026.
Traveler questions — Newark (EWR) to San Diego (SAN)
What prices were observed for Newark (EWR) to San Diego (SAN)?
Historical prices in USD for Newark (EWR) to San Diego (SAN) (round-trip) ranged from $307 to $887 across 312 accepted price checks from 2026-06-26 through 2026-09-23, inclusive; source: SERPRadio verified price observations; these are historical observations, not fares available to buy now.
When was the latest verified price check for Newark (EWR) to San Diego (SAN)?
The latest accepted price check for Newark (EWR) to San Diego (SAN) was observed on 2026-09-23, based on 1 accepted observation from 2026-09-23 through 2026-09-23; source: SERPRadio verified price observations.
How did observed prices differ by departure day for Newark (EWR) to San Diego (SAN)?
For Newark (EWR) to San Diego (SAN), historical round-trip USD median prices by departure weekday were Monday $463 (52 checks); Tuesday $373 (31 checks); Wednesday $384 (25 checks); Thursday $468 (56 checks); Friday $417 (52 checks); Saturday $395.5 (46 checks); Sunday $542 (50 checks), from 312 accepted price checks observed from 2026-06-26 through 2026-09-23; source: SERPRadio verified price observations. Comparisons describe only qualifying captured departure-day cells, not a recommendation for all flights.
How did observed prices differ by departure month for Newark (EWR) to San Diego (SAN)?
For Newark (EWR) to San Diego (SAN), historical round-trip USD median prices by departure month were 2026-07 $462 (21 checks); 2026-08 $462 (125 checks); 2026-09 $415 (111 checks); 2026-10 $466 (55 checks), from 312 accepted price checks observed from 2026-06-26 through 2026-09-23; source: SERPRadio verified price observations. Named-month comparisons do not establish annual seasonality.
What operational reliability is supported for Newark (EWR) to San Diego (SAN)?
Across 973 Newark (EWR) to San Diego (SAN) flights reported from 2025-09-01 through 2026-04-30, 84.5% of departures were on time; source: U.S. Department of Transportation.
Which departure days were most reliable for Newark (EWR) to San Diego (SAN)?
For Newark (EWR) to San Diego (SAN), Wednesday and Tuesday were the most reliable departure days among the qualifying weekday groups across 973 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
Which departure days were least reliable for Newark (EWR) to San Diego (SAN)?
For Newark (EWR) to San Diego (SAN), Sunday and Saturday were the least reliable departure days among the qualifying weekday groups across 973 flights reported from 2025-09-01 through 2026-04-30; source: U.S. Department of Transportation.
What cancellation rate was observed for Newark (EWR) to San Diego (SAN)?
Across 973 Newark (EWR) to San Diego (SAN) flights reported from 2025-09-01 through 2026-04-30, 2.0% were canceled; source: U.S. Department of Transportation.
Sources and methodology — Newark (EWR) to San Diego (SAN)
- SERPRadio verified price observations; 2026-06-26–2026-09-23; 312 price checks.
- SERPRadio verified price observations; 2026-09-23–2026-09-23; 1 price checks.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 973 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 973 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 973 flights.
- U.S. Department of Transportation; 2025-09-01–2026-04-30; 973 flights.
- SERPRadio verified price observations; 2026-06-26–2026-09-23; 312 price checks.
- SERPRadio verified price observations; 2026-06-26–2026-09-23; 312 price checks.
Who: SERP Radio route dossier system
How: Route pages combine accepted fare observations, timing guidance, carrier mix, and route-level context from current NYC corridor feeds.
Why: This page exists to explain current fare behavior on one route and point to the next timing or airport surface when needed.
Limits: If route coverage is thin, the page falls back to limited route guidance instead of publishing weak pricing claims.
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