Cheap Flights from Houston (HOU) to Castries (SLU)

Popular airlines from Houston William Hobby Airport (HOU) to George F. L. Charles Airport (SLU)

Alternative airports near Castries

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Hewanorra Intl. UVF. Cheapest option available. Average driving time to city center is 53 minutes. Flights from $687
UVF
Hewanorra Intl.
Cheapest
Average driving time to city center53 min
Flights from $687

Frequently asked questions

How much does a flight from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU) cost?
Snag a cheap one-way flight or cheap return flight from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU)?
is the cheapest month to fly from HOU to SLU. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest HOU to SLU flight.
How many flights per day from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU)?
Direct flights from William P. Hobby Airport (HOU) 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 filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HOU to SLU?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU)?
Opt for a flight from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour 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.
Is it cheaper to buy a plane ticket from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU) last-minute?
Last-minute bookings from HOU to SLU are typically more expensive. For the lowest prices, start searching for flights early. That being said, if you're flexible with your travel plans, you may find a cheap fare just before your departure.
Is it cheaper to book a HOU to SLU flight and hotel package?
Compared with arranging flights and hotels separately, booking a HOU to SLU flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place takes the hassle out of planning your trip. Simply secure your flights and choose from our wide range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from William P. Hobby Airport (HOU) to George F. L. Charles Airport (SLU)?
If you booked your HOU to SLU flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
William P. Hobby
Destination airport
George F. L. Charles
Distance
2436 mi

Book with confidence

Houston to Castries Flights

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

 

The best time to book a flight from Houston to Castries

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

 

Houston to Castries Flights

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*Available to One Key members.