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Castries

$492+ Cheap flights from George Bush Intcntl (IAH) to Castries (SLU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SLU
Jun 19 — Jun 261
Thu 6/19
Thu 6/26
1 adult, Economy
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Cheap flight deals from George Bush Intcntl to Castries

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 14, 2025.

Round-trip from

$921
(Mytrip)

One-way from

$492
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$828
From Houston George Bush Intcntl to Castries George F. L. Charle
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One-way flight from Houston George Bush Intcntl to Castries George F. L. Charle
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Highest demand for flights based on searches. 13% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from George Bush Intcntl to Castries

Cheapest flights from George Bush Intcntl to Castries
Explore the most affordable flight options available from George Bush Intcntl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2025.

This Mytrip deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:00 amIAH - SLU
3 stops28h 05mMultiple Airlines
Sun 9/2812:30 pmSLU - IAH
2 stops33h 30mMultiple Airlines
Deal found 6/13$921

Cheapflights Fare Finder

Customize your flight search to find flights from George Bush Intcntl to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 14, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Castries that are best for you.

Fly from

George Bush Intcntl

Fly to

Castries

Route

Depart

Return

Price

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Mon 9/22

7:00 am-12:05 pm

3 stops28h 05m

Castries George F. L. Charle

Sun 9/28

12:30 pm-9:00 pm

2 stops33h 30m

$921

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Sun 7/13

6:31 pm-5:00 pm

2 stops21h 29m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/13

Best time to book a flight from George Bush Intcntl to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Castries

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Castries?

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Castries (average of $525). Flying from Houston George Bush Intcntl Airport to Castries in July is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Castries from Houston George Bush Intcntl?

    Most people fly into Castries George F. L. Charle (SLU) if they book a flight to Castries from Houston George Bush Intcntl. On average, George F. L. Charle has 0 inbound flights from Houston George Bush Intcntl per day from 1 airline. Castries George F. L. Charle is conveniently located just 0.7 mi from Castries’s city center.

  • Can I find deals for flights from George Bush Intcntl to Castries that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Castries.

  • Can I find deals for business class flights from George Bush Intcntl to Castries?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Castries?

    Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Castries (average of $525). Flying from Houston George Bush Intcntl Airport to Castries in July is currently the most expensive (average of $767). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Gros Islet
Marigot Bay

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Alternative routes for George Bush Intcntl to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Castries flights
George Bush Intcntl to Castries flights

Top airline flying from George Bush Intcntl to Castries

Discover the top airline that operate flights from George Bush Intcntl to Castries. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$517Average$730FlexibilityNo cancel feeOn-time71%

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