St. Louis to San Diego: what the flight costs
In the last 60 days we checked this route 7 times. The typical return was £341 per person and the lowest £276, taxes and fees included.
| Per person | |
|---|---|
| Lowest seen | £276 |
| Typical (median) | £341 |
| Price checks, 60 days | 7 |
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Trips we picked on this route
Next weekend · from St. LouisLowest in 30 daysWorth it, if
San Diego
16 – 18 Oct 2026 · 2 nights
- £65 per person below the typical fare on this route
- Lowest in 30 days on this route
- Samesun Ocean Beach Hotel & Hostel, rated 9 by 1,724 guests
£777 for two · 2 nights · flights, hotel, taxes & fees
Flights £552 + hotel £225, taxes in · a checked bag each adds about £181
Frontier · with a stop · 8h 19m
The catch: Not nonstop: a stop on the way, 8h 19m in all.
Worth it if you want sun, sand and a pool; skip it if you want a city to walk.
Every fare we found in the last 30 days
| Checked | Trip dates | Per person | Airline | Stops | Duration | Source |
|---|---|---|---|---|---|---|
| 12 Oct 2026 | 23 – 25 Oct 2026 | £459 | AS | with a stop | 22h 17m | Kiwi.com |
| 12 Oct 2026 | 23 – 25 Oct 2026 | £321 | Frontier | with a stop | 5h 56m | Google Flights |
| 12 Oct 2026 | 16 – 18 Oct 2026 | £403 | AS | with a stop | 22h 22m | Kiwi.com |
| 12 Oct 2026 | 16 – 18 Oct 2026 | £276 | Frontier | with a stop | 8h 19m | Google Flights |
| 12 Oct 2026 | 23 – 25 Oct 2026 | £341 | F9 | with a stop | 5h 56m | Kiwi.com |
| 12 Oct 2026 | 16 – 18 Oct 2026 | £292 | F9 | with a stop | 8h 19m | Kiwi.com |
| 12 Oct 2026 | 23 – 25 Oct 2026 | £342 | 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 return from St. Louis to San Diego usually cost?
Over the last 60 days the typical price we found was £341 per person, taxes and fees included, across 7 checks; the lowest was £276.
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 passport needed for travellers from the United States: a government photo ID is enough for San Diego.
Prices converted from US dollars at the rate of 15 Oct 2026.