Cheap Flights from Philadelphia (PHL) to Christiansted (SSB)

Popular airlines from Philadelphia Intl. Airport (PHL) to Christiansted (SSB-St. Croix Seaplane Base)

Find available prices by choosing your travel dates.
Flights from Philadelphia (PHL) to Christiansted (SSB)
Origin airport
Philadelphia Intl.
Destination airport
St. Croix Seaplane Base
Distance
1653 mi

Philadelphia to Christiansted Flights

The cheapest times to fly from Philadelphia to Christiansted

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 Philadelphia to Christiansted are during the month of . You can find some of the cheapest flights from Philadelphia to Christiansted with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Philadelphia to Christiansted

Sunday is one of the best days to book for cheap flights from Philadelphia to Christiansted: 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 Philadelphia to Christiansted

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 Philadelphia to Christiansted 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 Philadelphia to Christiansted 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 Philadelphia to Christiansted 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.

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to St. Croix Seaplane Base Airport (SSB) cost?
Discover the latest flight deals from PHL to SSB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PHL to SSB?
The cheapest flights from PHL to SSB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PHL to SSB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from PHL to SSB. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Philadelphia Intl. Airport (PHL) to St. Croix Seaplane Base Airport (SSB)?
Direct flights from Philadelphia Intl. Airport (PHL) to St. Croix Seaplane Base Airport (SSB) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from PHL to SSB?
You’ll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to St. Croix Seaplane Base Airport (SSB)?
Choose a flight from Philadelphia Intl. Airport (PHL) to St. Croix Seaplane Base Airport (SSB) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**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.
What airports do you fly into for Christiansted from Philadelphia Intl. Airport (PHL)?
Compare your flight options from Philadelphia Intl. Airport (PHL) to Cyril E. King Airport (STT). This is the only airport in Christiansted you can land at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to St. Croix Seaplane Base Airport (SSB) last-minute?
Holding off until just before your departure to book a ticket from PHL to SSB often results in higher prices. Although you may find some last-minute deals, there’s no guarantee. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a PHL to SSB flight and hotel package?
Securing a PHL to SSB flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to St. Croix Seaplane Base Airport (SSB)?
If you reserved your PHL to SSB flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you’d like more information.

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*Available to One Key members.