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Castries

$425+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SLU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$673
(Trip.com)

One-way from

$425
(Kiwi.com)

Popular in

July

Cheapest in

May
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. 17% potential increase in price ($189 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($61 potential savings vs. average RT price).
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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 September 11, 2025.

This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:21 amIAH - SLU
2 stops27h 09mMultiple Airlines
Mon 11/34:35 pmSLU - IAH
2 stops28h 23mMultiple Airlines
Deal found 9/10$673
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:42 pmIAH - SLU
2 stops47h 28mMultiple Airlines
Sat 11/16:20 pmSLU - IAH
2 stops23h 34mMultiple Airlines
Deal found 9/10$712
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/161:08 pmIAH - SLU
3 stops47h 02mMultiple Airlines
Mon 10/208:20 pmSLU - IAH
2 stops23h 38mMultiple Airlines
Deal found 9/10$730
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Fri 10/108:35 amIAH - SLU
2 stops27h 35mMultiple Airlines
Tue 10/143:45 pmSLU - IAH
3 stops30h 32mMultiple Airlines
Deal found 9/10$960
This Mytrip deal was found by Cheapflights users on 9/10. 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.
Thu 11/611:55 amIAH - SLU
2 stops21h 35mMultiple Airlines
Tue 11/117:30 amSLU - IAH
3 stops29h 39mMultiple Airlines
Deal found 9/10$1,396
This Orbitz deal was found by Cheapflights users on 9/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:55 amIAH - SLU
3 stops45h 50mMultiple Airlines
Sun 1/412:30 pmSLU - IAH
3 stops59h 14mMultiple Airlines
Deal found 9/8$3,922

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 September 11, 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

Thu 10/30

7:21 am-11:30 am

2 stops27h 09m

Castries George F. L. Charle

Mon 11/3

4:35 pm-6:58 pm

2 stops28h 23m

$673

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Tue 10/28

12:42 pm-1:10 pm

2 stops47h 28m

Castries George F. L. Charle

Sat 11/1

6:20 pm-4:54 pm

2 stops23h 34m

$712

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Thu 10/16

1:08 pm-1:10 pm

3 stops47h 02m

Castries George F. L. Charle

Mon 10/20

8:20 pm-6:58 pm

2 stops23h 38m

$730

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Fri 10/10

8:35 am-1:10 pm

2 stops27h 35m

Castries George F. L. Charle

Tue 10/14

3:45 pm-9:17 pm

3 stops30h 32m

$960

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Thu 11/6

11:55 am-11:30 am

2 stops21h 35m

Castries George F. L. Charle

Tue 11/11

7:30 am-11:09 am

3 stops29h 39m

$1,396

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Wed 1/14

7:10 am-11:30 am

2 stops50h 20m

Castries George F. L. Charle

Wed 1/21

10:25 am-9:44 pm

2 stops37h 19m

$3,649

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Fri 12/26

7:10 am-10:10 pm

2 stops37h 00m

Castries George F. L. Charle

Sun 1/4

12:30 pm-9:44 pm

3 stops59h 14m

$3,922

HoustonCastries

IAH - SLU

IAHSLU

Houston George Bush Intcntl

Mon 12/1

9:05 pm-9:30 am

3 stops34h 25m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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.

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Castries. Reviews last updated September 11, 2025.
See what other customers who have flown with American Airlines from Houston George Bush Intcntl Airport to Castries have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Overall

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Comfort

7.2

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Overall

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Comfort

7.2

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

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.

  • What is the cheapest airline to fly from Houston George Bush Intcntl Airport to Castries round-trip?

    Flying on American Airlines is currently your cheapest option to Castries, with prices starting at $529.

  • 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 Castries?

Book flights to Castries if you plan to visit one of these locations
Rodney Bay
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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$529Average$730FlexibilityNo cancel feeOn-time71%

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