Cheap flights from St. Louis to San Juan from £109
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Not happy with the results? Try some of our useful filters
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
How much do flights to San Juan cost?
Cheapest one-way trip | £109 |
|---|---|
Cheapest round-trip | £287 |
Average round-trip | £313 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
Getting from San Juan airport to the city center
Fastest options: taxi or ride-hailing services. Best value: public buses and shared shuttles.
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
20-40 min | $15 – $25; fixed zone rates; metered to other areas | on-demand 24/7 (traffic dependent) | convenience with luggage | |
20-40 min | $12 – $30; varies with demand and destination | on-demand 24/7 (traffic dependent) | app-based convenience | |
45-75 min | $0.75; exact change required | every 30–60 min (traffic dependent) | budget travelers | |
20-45 min | $0 – $20; complimentary or fee varies by hotel | scheduled by hotel (traffic dependent) | hotel guests | |
20-40 min | $35 – $80; per day; varies by company and vehicle | on-demand (traffic dependent) | exploring the island | |
30-60 min | $10 – $20; per person; multiple stops | scheduled departures (traffic dependent) | solo travelers on budget |
Notes:
- Prices in USD; table created in 2025 and subject to change.
- Taxis from SJU operate on fixed zone rates to tourist areas like Condado, Isla Verde, and Old San Juan.
- Public bus service is limited and may require transfers to reach central tourist areas.
- Ride-hailing pickup is located at designated areas outside the terminal.
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
Key info about flying to San Juan
Check-in for a flight from St. Louis to San Juan
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| United Airlines | UAL | UA | No |
| JetBlue Airways | JBU | B6 | No |
| WestJet | WJA | WS | No |
| - |
Online check-in is not available for these airlines.
Weather in San Juan
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 27°C | 22°C |
| February | 27°C | 22°C |
| March | 27°C | 22°C |
| April | 28°C | 23°C |
| May | 29°C | 24°C |
| June | 30°C | 25°C |
| July | 30°C | 25°C |
| August | 30°C | 25°C |
| September | 30°C | 25°C |
| October | 29°C | 25°C |
| November | 28°C | 24°C |
| December | 27°C | 23°C |
14 day forecast
Frequently asked questions
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