The cheapest times to fly from SLU to JAX are

  • January 15th to February 18th (except the week of February 5th)
  • March 19th to June 10th (except the weeks of April 2nd and April 16th)
  • October 15th to November 25th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SLU to JAX is early November. Prices can be as high as $1895 for Saturday flights during early August, or as low as $746 for Tuesday flights around early November.


When to Fly to Jacksonville

Flying from St. Lucia (SLU) to Jacksonville, FL (JAX) will usually cost between $795 to $1325 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $798. Due to high demand the most expensive time to fly is early August, with an average price of $1895. Planning your trip to low-cost times can easily save you $1097 on economy flights and even more on first-class flights. Generally, any price below $967 can be considered a good price for a round-trip SLU to JAX flight.

See below for a graph of average weekly prices for the SLU to JAX route. All prices are for round-trip tickets in USD.

SLU to JAX Flight Prices

Compared to other flights, the SLU to JAX flight is priced close to the average and costs less than the average flight leaving from Saint Lucia. The average price per mile (for a direct flight) is $0.35, which is in the normal range for a flight.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to Jacksonville, and Fridays are the most expensive days to return to Saint Lucia. Selecting flights on the least expensive days could save you up to $105 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $941. Return trip prices are from the JAX to SLU flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SLU to JAX can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 7 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SLU to JAX while comparing.

Destination alternative #1: Orlando International Airport (MCO) in Orlando, FL

  • 144 miles (232 km) away from JAX
  • Usually 6.20% less expensive than JAX
  • 1-layover flights available

See SLU to MCO flights


Flight Hacking SLU to JAX

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SLU to JAX — but Champion Traveler does!

Hack #1: Port of Spain (SLU > POS > JAX)

  • Price for both tickets: $809
  • Average savings: $158 (16.34%)

See SLU to FLL flights

Hack #2: Fort Lauderdale, FL (SLU > FLL > JAX)

  • Price for both tickets: $811
  • Average savings: $156 (16.13%)

See SLU to POS flights

Hack #3: Miami, FL (SLU > MIA > JAX)

  • Price for both tickets: $824
  • Average savings: $144 (14.84%)

See SLU to MIA flights


Flight Questions Answered

Still have questions about flying from SLU to JAX? We’ve got answers.

Which airlines fly this route?

You can find 7 major airlines flying this route most often: Air France, American, Caribbean Airlines, Delta, JetBlue, LIAT, United, and potentially more during busy seasons.

How far away is it from Jacksonville International Airport to George F Charles Airport?

The distance between the two airports is roughly 1739 miles or 2799 kilometers.

How long does it take to fly from SLU to JAX?

The real-world flight time for a nonstop SLU to JAX flight is about 4 hour 7 minutes.

How many flights go between St. Lucia and Jacksonville, FL?

It depends on the day of the week and the date, but a typical day might have around 12 available flights from SLU to JAX.


Airport Location Info


Departing Airport

Origination code SLU
Origination airport name George F Charles Airport
City St. Lucia
Country St Lucia
Latitude 14
Longitude -61

Return Airport

Destination code JAX
Destination airport name Jacksonville International Airport
City Jacksonville, FL
Country the United States
Latitude 30.5
Longitude -81.7


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.