Frontier Airlines flights from RDU to SJU
Find comprehensive Frontier Airlines flight information, schedules, and booking details for direct flights from RDU to SJU. Frontier Airlines operates 2-4 flights daily flights on this route.• Flight Duration: 3h 18m - 3h 39m (average flight time)• Distance: 1443 miles (2322 km) (air miles between airports)• Daily Flights: 2-4 flights (scheduled departures per day)
RDU
SJU
FLIGHT TIME
3h 18m - 3h 39m
FLIGHT DISTANCE
1443 miles (2322 km)
3h 23m - 3h 23m
17:57
17:57
1443 miles (2322 km)
January
1 (Show)
10
Frontier Airlines Flight Schedule from RDU to SJU
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
F91226 |  Frontier Airlines | 17:57 | 22:20:00 | Airbus A320neo |
Frontier Airlines Monthly Flight Calendar
December 2025
Route Insights
Pricing patterns: January typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 17:00, offering more flight options and potentially better connections.
RDU - SJU flight price statistics
$438
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$122
Jan$170
Feb$128
Mar$183
Apr$780
May$360
Jun$480
Jul$498
Aug$340
Sep$861
Oct$620
Nov$710
DecFrontier Airlines Terminal Information
Terminal information for Frontier Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Frontier Airlines Flights
How many Frontier Airlines flights operate from RDU to SJU?
Frontier Airlines operates 1 flight from RDU to SJU.
What city does SJU airport serve?
SJU airport serves San Juan.
How long is the Frontier Airlines flight from RDU to SJU?
The flight duration is approximately 3h 18m - 3h 39m.
What is the distance from RDU to SJU?
The distance is 1443 miles (2322 km).
What aircraft does Frontier Airlines use on this route?
Frontier Airlines uses Airbus A320neo on this route.
Which other airlines operate on this route?
1 other airline operates on this route: JetBlue Airways.
What is the cheapest month to fly Frontier Airlines from RDU to SJU?
January is typically the cheapest month to fly Frontier Airlines on this route.
What is the average price for a Frontier Airlines flight from RDU to SJU?
The average price for a round-trip Frontier Airlines flight on this route is approximately $438. Prices can vary based on booking time and demand.
How many Frontier Airlines flights operate per week on this route?
Frontier Airlines operates approximately 10 flights per week from RDU to SJU.