Flights from Saint Louis to San Juan from $ 373*
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1 Passenger, Economy
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Featured daily fares for flights from Saint Louis (STL) to San Juan (SJU)
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More United deals on Saint Louis (STL) to San Juan (SJU) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 05/16/26 - 05/22/26 | from $ 373 Viewed: 1 day ago |
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 07/04/26 - 07/08/26 | from $ 403 Viewed: 11 hours ago |
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 07/07/26 - 07/14/26 | from $ 418 Viewed: 11 hours ago |
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 06/30/26 - 07/14/26 | from $ 433 Viewed: 11 hours ago |
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 05/19/26 - 05/23/26 | from $ 433 Viewed: 11 hours ago |
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 06/27/26 - 07/01/26 | from $ 436 Viewed: 11 hours ago |
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 07/13/26 - 07/17/26 | from $ 441 Viewed: 11 hours ago |
| Saint Louis (STL) | San Juan (SJU) | Roundtrip | Economy | 06/29/26 - 07/03/26 | from $ 450 Viewed: 11 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
