$128 Cheap Frontier Airlines flights San Juan (SJU) to Raleigh (RDU)

Finding cheap one-way Frontier Airlines flights from SJU to RDU from $128 on Expedia is easy — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $216 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the most affordable months to jet away to Raleigh with Frontier Airlines. You could also find great prices on one-way and round-trip tickets in December.

Check for Frontier Airlines flights from SJU to RDU about one month before you want to go. The cheapest time to reserve an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of ticket type or itinerary, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Travelers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Fill in your dates, press search and select the “Nonstop” filter on Expedia to browse any direct flights from SJU to RDU with Frontier Airlines or another airline.

To find the earliest departure from SJU to RDU with Frontier Airlines, filter your results by “Early Morning” and “Morning.” Booking an early flight usually means you’ll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Raleigh - Durham Intl. Airport (RDU) is the primary Raleigh gateway for Frontier Airlines flights from Luis Munoz Marin Intl. Airport (SJU).

Travel from SJU to RDU with Frontier Airlines and you’ll enjoy a range of perks starting with a rewarding loyalty program. When you book through Expedia as a Frontier Miles and One Key™ member, you may also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your fare type, a fee generally applies if you modify or cancel your flight more than 24 hours after confirmation. To find flexible plane tickets, select our “Changes included” and “No cancel fee” boxes when you search for flights. For more information on canceling or changing your reservation, visit “Trips,” select your flight and click on “Manage Booking.”