Cheap Flights from St. Petersburg (PIE) to Castries (SLU)

Popular airlines from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU)

Frequently asked questions

How much does a flight from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU) cost?
Get a cheap one-way flight or cheap return flight from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU)?
is the cheapest month to fly from PIE to SLU. Traveling outside of peak seasons is often the key to finding better deals on flights.
What is the cheapest airline that flies from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PIE to SLU flight.
How many flights per day from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU)?
Direct flights from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PIE to SLU?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU)?
Opt for a flight from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU) last-minute?
Holding off until just before your trip to book a flight from PIE to SLU often results in higher prices. Although you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans for the best chance of landing a bargain.
Is it cheaper to book a PIE to SLU flight and hotel package?
You'll typically save money by securing a PIE to SLU flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred accommodations and flights, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from St. Petersburg-Clearwater Intl. Airport (PIE) to George F. L. Charles Airport (SLU)?
Typically, you can modify or cancel your PIE to SLU flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you want further details, head to our Customer Service portal.

Travel information

Travel information

Origin airport
St. Petersburg-Clearwater Intl.
Destination airport
George F. L. Charles
Distance
1692 mi

Book with confidence

Book with confidence

St. Petersburg to Castries Flights

The cheapest times to fly from St. Petersburg to Castries

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Petersburg to Castries are during the month of . You can find some of the cheapest flights from St. Petersburg to Castries with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Petersburg to Castries

Sunday is one of the best days to book for cheap flights from St. Petersburg to Castries: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Petersburg to Castries

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Petersburg to Castries in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Petersburg to Castries flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Petersburg to Castries airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Petersburg to Castries Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.