Routes/Philadelphia, PA to San Diego, CA

Philadelphia, PA to San Diego, CA

Average one-way fare in 2026 Q1: $371 · 2370 nonstop miles · 600 passengers per day.

2026 Q1 fare$371
2025 Q1 fare$337
Change+$35
Passengers/day600
Distance2370 mi

The average fare a year earlier (2025 Q1) was $337. The change is $35 higher (10.3%).

The largest carrier on this route in 2026 Q1 was American with 86% of passengers. The lowest-fare carrier was Southwest with 8% of passengers, at an average fare of $260.

All routes from Philadelphia, PA · All routes from San Diego, CA

All quarters on this route

QuarterPassengers/dayAvg. fareLargest carrierLargest shareLowest-fare carrier
2024 Q1588$368American80%Spirit
2024 Q2771$355American76%Frontier
2024 Q3782$328American80%Spirit
2024 Q4785$333American83%Frontier
2025 Q1581$337American86%Frontier
2025 Q2807$320American84%Frontier
2025 Q3732$317American85%Spirit
2025 Q4728$326American86%Frontier
2026 Q1600$371American86%Southwest

Source: U.S. Department of Transportation, Consumer Airfare Report Table 1, 2026 Q1. Figures are average one-way fares paid, including taxes and fees, for the quarter shown. Record: city markets 34100 and 33570; U.S. Department of Transportation, Domestic Airline Consumer Airfare Report, Table 1: top 1,000 contiguous-state city-pair markets (average one-way fare, passengers per day, largest carrier, lowest-fare carrier). Fetched 2026-09-27T00:40:04Z. Source data.