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Cheap flights from San Antonio to Castries from $629

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Castries departing on 1/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Antonio to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:10 am - 4:02 pm
SAT
-
UVF
8h 52m1 stop
American Airlines Logo
4:06 pm - 11:58 pm
UVF
-
SAT
9h 52m1 stop
$629American Airlines
Thu, Jan 29 - Thu, Feb 5
American Airlines Logo
6:01 pm - 4:02 pm
SAT
-
UVF
20h 01m2 stops
American Airlines Logo
5:02 pm - 9:52 am
UVF
-
SAT
18h 50m2 stops
$634American Airlines
Thu, Jan 29 - Thu, Feb 5
Multiple Airlines Logo
6:30 am - 4:25 pm
SAT
-
UVF
31h 55m3 stops
Multiple Airlines Logo
3:40 pm - 11:52 pm
UVF
-
SAT
34h 12m2 stops
$979Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
American Airlines Logo
3:08 pm - 2:18 pm
SAT
-
UVF
21h 10m2 stops
American Airlines Logo
2:57 pm - 12:50 pm
UVF
-
SAT
22h 53m2 stops
$1,017American Airlines
Sat, Mar 7 - Sat, Mar 14
American Airlines Logo
1:10 pm - 2:18 pm
SAT
-
UVF
23h 08m1 stop
American Airlines Logo
2:57 pm - 12:50 pm
UVF
-
SAT
22h 53m2 stops
$1,114American Airlines
Sat, Mar 7 - Sat, Mar 14
American Airlines Logo
5:10 pm - 2:58 pm
SAT
-
UVF
19h 48m1 stop
American Airlines Logo
2:57 pm - 12:50 pm
UVF
-
SAT
22h 53m2 stops
$1,117American Airlines
Sat, Mar 7 - Sat, Mar 14
Multiple Airlines Logo
10:35 am - 4:25 pm
SAT
-
UVF
27h 50m3 stops
Multiple Airlines Logo
3:40 pm - 11:52 pm
UVF
-
SAT
34h 12m3 stops
$1,203Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
American Airlines Logo
5:20 am - 4:00 pm
SAT
-
UVF
8h 40m1 stop
American Airlines Logo
2:57 pm - 11:27 pm
UVF
-
SAT
9h 30m1 stop
$1,266American Airlines
Sat, Mar 7 - Sat, Mar 14
American Airlines Logo
1:10 pm - 2:18 pm
SAT
-
UVF
23h 08m1 stop
American Airlines Logo
2:57 pm - 11:27 pm
UVF
-
SAT
9h 30m1 stop
$1,292American Airlines
Sat, Mar 7 - Sat, Mar 14
American Airlines Logo
5:10 pm - 2:58 pm
SAT
-
UVF
19h 48m1 stop
American Airlines Logo
2:57 pm - 11:27 pm
UVF
-
SAT
9h 30m1 stop
$1,295American Airlines
Sat, Mar 7 - Sat, Mar 14

American Airlines flights from San Antonio to Castries

Our best American Airlines deals on San Antonio to Castries flight tickets
American Airlines
Jan 29
SAT5:10 amSan Antonio
8h 52m
1 stop
UVF4:02 pmCastries Hewanorra
Feb 5
UVF4:06 pmCastries Hewanorra
9h 52m
1 stop
SAT11:58 pmSan Antonio
$629
Find similar
American Airlines
Jan 29
SAT6:01 pmSan Antonio
20h 01m
2 stops
UVF4:02 pmCastries Hewanorra
Feb 5
UVF5:02 pmCastries Hewanorra
18h 50m
2 stops
SAT9:52 amSan Antonio
$634
Find similar
American Airlines
Mar 7
SAT3:08 pmSan Antonio
21h 10m
2 stops
UVF2:18 pmCastries Hewanorra
Mar 14
UVF2:57 pmCastries Hewanorra
22h 53m
2 stops
SAT12:50 pmSan Antonio
$1,017
Find similar

WestJet flights from San Antonio to Castries

Our best WestJet deals on San Antonio to Castries flight tickets
WestJet
Jan 26
SAT6:30 amSan Antonio
30h 20m
2 stops
UVF2:50 pmCastries Hewanorra
Jan 29
UVF3:40 pmCastries Hewanorra
34h 58m
2 stops
SAT12:38 amSan Antonio
$3,771
Find similar
WestJet
Jan 26
SAT10:45 amSan Antonio
26h 05m
2 stops
UVF2:50 pmCastries Hewanorra
Jan 29
UVF3:40 pmCastries Hewanorra
27h 42m
2 stops
SAT5:22 pmSan Antonio
$3,794
Find similar
WestJet
Jan 26
SAT6:30 amSan Antonio
30h 20m
2 stops
UVF2:50 pmCastries Hewanorra
Jan 29
UVF3:40 pmCastries Hewanorra
44h 41m
2 stops
SAT10:21 amSan Antonio
$3,842
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio 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, momondo users made 832,500 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from San Antonio to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Thu 1/29

5:10 am-4:02 pm

1 stop8h 52m

Castries Hewanorra

Thu 2/5

4:06 pm-11:58 pm

1 stop9h 52m

$629

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Thu 1/29

6:01 pm-4:02 pm

2 stops20h 01m

Castries Hewanorra

Thu 2/5

5:02 pm-9:52 am

2 stops18h 50m

$634

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Thu 1/29

6:30 am-4:25 pm

3 stops31h 55m

Castries Hewanorra

Thu 2/5

3:40 pm-11:52 pm

2 stops34h 12m

$979

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Sat 3/7

3:08 pm-2:18 pm

2 stops21h 10m

Castries Hewanorra

Sat 3/14

2:57 pm-12:50 pm

2 stops22h 53m

$1,017

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Sat 3/7

1:10 pm-2:18 pm

1 stop23h 08m

Castries Hewanorra

Sat 3/14

2:57 pm-12:50 pm

2 stops22h 53m

$1,114

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Sat 3/7

5:10 pm-2:58 pm

1 stop19h 48m

Castries Hewanorra

Sat 3/14

2:57 pm-12:50 pm

2 stops22h 53m

$1,117

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Thu 1/29

10:35 am-4:25 pm

3 stops27h 50m

Castries Hewanorra

Thu 2/5

3:40 pm-11:52 pm

3 stops34h 12m

$1,203

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Sat 3/7

5:20 am-4:00 pm

1 stop8h 40m

Castries Hewanorra

Sat 3/14

2:57 pm-11:27 pm

1 stop9h 30m

$1,266

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Sat 3/7

1:10 pm-2:18 pm

1 stop23h 08m

Castries Hewanorra

Sat 3/14

2:57 pm-11:27 pm

1 stop9h 30m

$1,292

San AntonioCastries

SAT - UVF

SATUVF

San Antonio

Sat 3/7

5:10 pm-2:58 pm

1 stop19h 48m

Castries Hewanorra

Sat 3/14

2:57 pm-11:27 pm

1 stop9h 30m

$1,295

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Castries from

How to get the cheapest flight ticket from San Antonio to Castries

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between San Antonio and Castries?

What is the cheapest day to depart on your flight to Castries?

The cheapest day to depart from San Antonio to Castries is on a Tuesday when prices can be found for as low as $575. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $921. These prices are subject to change though, so be sure to set up a Price Alert for flights to Castries.

What is the cheapest time of day to depart on your flight to Castries?

According to our data, the cheapest time of day to fly to Castries is in the afternoon. momondo users have found flights departing from San Antonio to Castries in the afternoon for as low as $590. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Castries are more costly in the morning, with an average ticket price of $732. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from San Antonio to Castries

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Castries according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Antonio to Castries (SAT to UVF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Castries

Fastest flight time

7h 35m

Direct flights

None
The fastest flight from San Antonio to Castries takes 7h 35m
There are no direct flights from San Antonio to Castries. There are no popular flight routes from San Antonio to Castries.
Search flight deals

  • How far is San Antonio to Castries Hewanorra by plane?

    Castries Hewanorra is 2615.1 mi away from San Antonio. 7h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Antonio Airport to Castries Hewanorra Airport?

    Prices for flights from San Antonio Airport to Castries Hewanorra Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Antonio Airport to Castries Hewanorra Airport?

  • How old do you have to be to fly from San Antonio Airport to Castries Hewanorra Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Castries Hewanorra Airport.

  • What documentation or ID do you need to fly to Castries Hewanorra Airport?

    The travel and health documents required for your trip to Castries Hewanorra Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Castries Hewanorra Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from San Antonio to Castries?

Best airlines flying from San Antonio to Castries

Compare and see reviews for airlines that fly from San Antonio to Castries with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $596Free CancellationRating
7.2
11,052 reviews
Search American Airlines flights
DeltaPriceFrom $606Free CancellationRating
7.9
8,007 reviews
Search Delta flights

Traveling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Vieux Fort

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Castries?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Antonio to Castries for you.

Can I find flights from San Antonio to Castries with flexible booking policies on momondo?

Yes. All flights to Castries from San Antonio on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Antonio to Castries?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Antonio to Castries.

I’m not ready to book a flight from San Antonio to Castries right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Castries, momondo offers a useful price alert feature which will track prices for flights to Castries from San Antonio and alert you when they change.

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Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries George F. L. Charle Airport