C$397 Cheap Flights from Houston (HOUA) to Castries (SLUA)

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Flight deals from Houston to Castries

Looking for a cheap last-minute deal or the best return flight from Houston to Castries? If you want to travel next month, return fares start from C$761. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Houston to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston to Castries flights are currently cheapest in June.

Alternative Houston to Castries routes

Looking for the cheapest, fastest or easiest route from Houston to Castries? You could fly into the following airports instead.

Houston to Castries: Flight information

The things to know before you go.
Cheapest flight foundC$397
Cheapest month to flyJune

Finding cheap flights from Houston to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from Houston to Castries is C$761. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Houston to Castries. But we found flights with one or more stops from C$761.
As of May 2026, there are no flights flying from Houston to Castries.
The cheapest month to fly from Houston to Castries is usually June.
If you're flying from Houston, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.5 km away from the centre of Castries. We've found flights into this airport from C$761.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Castries on Monday, June 8, 2026.
No airlines currently offer direct flights between Houston and Castries. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 27°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
The cheapest airline that flies to Castries is Air Canada .

Flying from Houston to Castries: what you need to know

  • There are two main airports you can fly out of in Houston. Check out your options leaving from George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU) when organizing your flight from Houston to Castries.

  • Hewanorra Airport (UVF) and George F. L. Charles Airport (SLU) are Castries's primary hubs.

  • Give yourself enough time to get on your flight from Houston to Castries. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

  • You can expect longer queues in popular months such as July and other peak seasons. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • If you have a passport from United States and are travelling to Saint Lucia for tourism purposes, you won't need a visa. However, visa and entry requirements may differ based on the length and purpose of your stay and are subject to change. For the latest rules, contact your destination's nearest consulate or embassy before booking a cheap flight from Houston to Castries.

Flying from Houston

George Bush Intercontinental Airport (IAH)

  • We make it a piece of cake to plan a flight from Houston to Castries with a stopover. To see the options departing from George Bush Intercontinental Airport, deselect 'Direct flights only.' Next, pick a flight that has a stop long enough to see the sights of your chosen city. Top stopovers include:

    • Piarco International Airport (POS)

    • Miami International Airport (MIA)

    • O'Hare International Airport (ORD)

  • Travelling from central Houston to IAH takes around 49 minutes by public transport. If you ride-share, drive or grab a cab, you'll cover the 27 kilometres in 20 minutes or so, depending on traffic.

  • Want a handy hotel close to George Bush Intercontinental Airport? If you've booked an early flight from Houston to Castries, these accommodation options will have you moments from your check-in counter:

William P. Hobby Airport (HOU)

  • Make the most of your vacation with a stopover on your flight from Houston to Castries. Visit friends or family or tick a new city off your list. Whatever you'd like to do, check out these options between George Bush Intercontinental Airport and Castries:

    • Piarco International Airport (POS)

    • Miami International Airport (MIA)

    • O'Hare International Airport (ORD)

  • On public transport, you can travel from central Houston to HOU in around 1 hour and 42 minutes. The terminal is roughly 19 kilometres away, and making the journey by car takes approximately 22 minutes.

  • Want to treat yourself to an extra night away before boarding your flight from Houston to Castries? Kick back in a hotel near William P. Hobby Airport before your trip officially starts. Stay at one of these accommodation options:

Arriving in Castries

Hewanorra Airport (UVF)

George F. L. Charles Airport (SLU)

  • George F. L. Charles Airport (SLU) is around 3 kilometres from the centre of Castries. After your flight from Houston to Castries, expect a drive time of approximately 6 minutes to reach the heart of the city.

  • You can also travel using public transport, which will take approximately 40 minutes.

  • You'll find some comfortable stays to park your luggage (and yourself) near SLU. Tuck yourself in after your flight from Houston to Castries at one of these well-located options:

How to find the cheapest flights from Houston to Castries

  • C$397 is currently the best price for a one-way ticket from Houston to Castries. A return flight starts from C$761. These prices can change depending on demand.

  • To get your hands on cheap flights from Houston to Castries, book ahead. Airlines generally offer the most competitive fares when flights are first made available.

  • If you can be flexible with your trip dates, try using the 'Whole month' tool. It'll find the lowest price in each month when searching for your ticket from Houston to Castries.

  • Locking in a cheap ticket from Houston to Castries is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you when the price has fallen.

  • Tailor your flights using filters. Select your departure and arrival times, total journey duration and airlines. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest' flights from Houston to Castries.

Best time to go to Castries

  • It's time to work out your dates for your flight from Houston to Castries. July is the busiest month to visit Castries. If you prefer a more low-key vibe, go in May.

  • Before locking in your flight from Houston to Castries, consider the type of weather you enjoy. September is the warmest month in Castries, with the temperature ranging from 26ºC to 30ºC.

  • February has average temperatures of between 24ºC and 28ºC. Search for cheap flights from Houston to Castries sometime then if you like cooler conditions.

More about Castries

  • After booking your flight from Houston to Castries, think about where to rest your head in this city. Make one of these options your base for exploring Castries:

  • Every great adventure has to include some sightseeing. Derek Walcott Square, Morne Fortune and Immaculate Conception Church are must-do's during your Castries adventure.

Complete your Castries trip with a car rental

  • We use the same magic that helped you find your cheap flight from Houston to Castries to track down incredible deals on car rentals. Search for your ride in seconds and compare offers in one place. Plus we give you all the info you need to drive in Castries, from the most popular car type to the best time to book.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.