Frontier Airlines flights from SJU to RDU
Find comprehensive Frontier Airlines flight information, schedules, and booking details for direct flights from SJU to RDU. Frontier Airlines operates 2-4 flights daily flights on this route.• Flight Duration: 3h 32m - 3h 59m (average flight time)• Distance: 1443 miles (2322 km) (air miles between airports)• Daily Flights: 2-4 flights (scheduled departures per day)
SJU
RDU
FLIGHT TIME
3h 32m - 3h 59m
FLIGHT DISTANCE
1443 miles (2322 km)
3h 39m - 3h 39m
14:33
14:33
1443 miles (2322 km)
January
1 (Show)
21
Frontier Airlines Flight Schedule from SJU to RDU
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
F91225 |  Frontier Airlines | 14:33 | 17:12:00 | 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 14:00, offering more flight options and potentially better connections.
SJU - RDU flight price statistics
$385
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.
$115
Jan$185
Feb$305
Mar$202
Apr$160
May$420
Jun$520
Jul$411
Aug$340
Sep$626
Oct$900
Nov$440
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 SJU to RDU?
Frontier Airlines operates 1 flight from SJU to RDU.
What city does RDU airport serve?
RDU airport serves Morrisville.
How long is the Frontier Airlines flight from SJU to RDU?
The flight duration is approximately 3h 32m - 3h 59m.
What is the distance from SJU to RDU?
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 SJU to RDU?
January is typically the cheapest month to fly Frontier Airlines on this route.
What is the average price for a Frontier Airlines flight from SJU to RDU?
The average price for a round-trip Frontier Airlines flight on this route is approximately $385. Prices can vary based on booking time and demand.
How many Frontier Airlines flights operate per week on this route?
Frontier Airlines operates approximately 21 flights per week from SJU to RDU.