JetBlue announced a major expansion of its San Juan (SJU) focus city with the launch of five new nonstop routes to Philadelphia (PHL); Jacksonville Florida (JAX); Beginning in spring 2026, the airline will operate year-round service to all five markets, reinforcing JetBlue's longstanding investment in Puerto Rico and deepening its 23-year commitment to the island. With these new routes available for purchase now, JetBlue is offering fares as low as $99 one-way available onjetblue.com.