Routes/Denver, CO to San Diego, CA
Denver, CO to San Diego, CA
Average one-way fare in 2026 Q1: $169 · 853 nonstop miles · 2078 passengers per day.
2026 Q1 fare$169
2025 Q1 fare$193
Change−$24
Passengers/day2078
Distance853 mi
The average fare a year earlier (2025 Q1) was $193. The change is $24 lower (12.3%).
The largest carrier on this route in 2026 Q1 was Southwest with 36% of passengers. The lowest-fare carrier was Frontier with 12% of passengers, at an average fare of $110.
All quarters on this route
| Quarter | Passengers/day | Avg. fare | Largest carrier | Largest share | Lowest-fare carrier |
|---|---|---|---|---|---|
| 2024 Q1 | 1746 | $188 | Southwest | 48% | Frontier |
| 2024 Q2 | 2061 | $179 | Southwest | 46% | Frontier |
| 2024 Q3 | 2189 | $180 | Southwest | 42% | Frontier |
| 2024 Q4 | 1924 | $190 | Southwest | 41% | Frontier |
| 2025 Q1 | 1705 | $193 | Southwest | 45% | Frontier |
| 2025 Q2 | 1906 | $181 | Southwest | 42% | Frontier |
| 2025 Q3 | 2204 | $179 | Southwest | 40% | Frontier |
| 2025 Q4 | 2065 | $164 | Southwest | 40% | Frontier |
| 2026 Q1 | 2078 | $169 | Southwest | 36% | Frontier |