St. Louis to San Diego: what the flight costs
In the last 60 days we checked this route 7 times. The typical round trip was $452 per person and the lowest $366, taxes and fees included.
| Per person | |
|---|---|
| Lowest seen | $366 |
| Typical (median) | $452 |
| Price checks, 60 days | 7 |
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Trips we picked on this route
$452 $366 per person, round trip, taxes and fees included You save $86 (19%)
the typical fare on this route
Every fare we found in the last 30 days
| Checked | Trip dates | Per person | Airline | Stops | Duration | Source |
|---|---|---|---|---|---|---|
| Oct 12, 2026 | Oct 23–25, 2026 | $609 | AS | with a stop | 22h 17m | Kiwi.com |
| Oct 12, 2026 | Oct 23–25, 2026 | $426 | Frontier | with a stop | 5h 56m | Google Flights |
| Oct 12, 2026 | Oct 16–18, 2026 | $535 | AS | with a stop | 22h 22m | Kiwi.com |
| Oct 12, 2026 | Oct 16–18, 2026 | $366 | Frontier | with a stop | 8h 19m | Google Flights |
| Oct 12, 2026 | Oct 23–25, 2026 | $452 | F9 | with a stop | 5h 56m | Kiwi.com |
| Oct 12, 2026 | Oct 16–18, 2026 | $387 | F9 | with a stop | 8h 19m | Kiwi.com |
| Oct 12, 2026 | Oct 23–25, 2026 | $454 | F9 | with a stop | 5h 56m | Kiwi.com |
About San Diego
San Diego has the most reliable beach weather in the country, plus the famous zoo, Balboa Park, fish tacos and a laid-back surf culture.
San Diego from every city: when to go, where to stay, what to do
Questions about St. Louis to San Diego
What does a round trip from St. Louis to San Diego usually cost?
Over the last 60 days the typical price we found was $452 per person, taxes and fees included, across 7 checks; the lowest was $366.
When is the best time to fly from St. Louis to San Diego?
San Diego is at its best in March, April, May, August, September, October and November. Avoid June: June Gloom marine layer
Do I need a passport to fly from St. Louis to San Diego?
No, a government photo ID is enough for US citizens.