Cheap Flights from Bilbao (BIO) to Castries (SLU)

Popular airlines from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU)

Frequently asked questions

How much does a flight from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU) cost?
Snag a cheap one-way flight or cheap return flight from Bilbao Airport (BIO) 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 deals on this route.
What is the cheapest month to fly from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU)?
is the least expensive month to fly from BIO to SLU. Traveling outside of peak seasons is often the key to landing a great deal.
What is the cheapest airline that flies from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from BIO to SLU. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU)?
You'll have to catch a flight with a layover when traveling from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from BIO to SLU?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU)?
Select a flight from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this 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 Bilbao Airport (BIO) to George F. L. Charles Airport (SLU) last-minute?
Holding off until just before your trip to book a flight from BIO to SLU generally means paying more. While it's possible to find some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary to maximize your chances of landing a bargain.
Is it cheaper to book a BIO to SLU flight and hotel package?
You'll generally save money by securing a BIO to SLU flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your preferred accommodations and flights, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Bilbao Airport (BIO) to George F. L. Charles Airport (SLU)?
It's generally possible to reschedule or cancel your BIO to SLU flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Bilbao
Destination airport
George F. L. Charles
Distance
3962 mi

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Bilbao to Castries Flights

The cheapest times to fly from Bilbao 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 Bilbao to Castries are during the month of . You can find some of the cheapest flights from Bilbao to Castries with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bilbao to Castries

Sunday is one of the best days to book for cheap flights from Bilbao 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 Bilbao 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 Bilbao 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 Bilbao 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 Bilbao 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.

 

Bilbao to Castries Flights

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*Available to One Key members.