App
Customer Support
EUR
Find Bookings
Trip.com
>
Flights
>
Flights to Saint Lucia
>
Flights to Castries
>
Flights from San Antonio to Castries
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Cheap flight deals from San Antonio to Castries Starting at €432

For as little as €432, you can take your next adventure to Castries without breaking the bank. Choose between one-way and return tickets from San Antonio below.

  • One way
  • Round-trip
      • SAT07:25
        30h 30m
        1 stop
        UVF15:55
        Sun, Feb 23|San Antonio - Castries|United Airlines
        €432€514
        16% OFF
        16% OFF
        €514€432

        Choose United Airlines flights from San Antonio to Castries. The one-way connecting flight with United Airlines departs from San Antonio International Airport on Sun, Feb 23, arriving at Hewanorra Airport. One-way Prices start from €432 including taxes and charges.

      • SAT01:00 pm
        3h 5m
        Nonstop
        SLU02:00 pm
        Fri, Feb 21|San Antonio - Castries|United Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

San Antonio to Castries flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL1073

    Delta Air Lines

    05:30

    SAT

    2.4h

    08:53

    ATL

    SMTWTFS
    Search

  2. DL1970

    Delta Air Lines

    09:40

    ATL

    4.5h

    14:08

    UVF

    SMTWTFS

  3. UA2250

    United Airlines

    12:10

    SAT

    3.3h

    16:29

    IAD

    SMTWTFS
    Search

  4. UA4174

    United Airlines

    19:18

    DCA

    1.7h

    21:00

    EWR

    SMTWT--

  5. B6181

    Jetblue Airways

    08:24

    JFK

    4.5h

    13:54

    UVF

    -M-W-FS

  6. UA1282

    United Airlines

    12:19

    SAT

    1.1h

    13:23

    IAH

    SMTWTFS
    Search

  7. UA313

    United Airlines

    18:15

    IAH

    3.4h

    22:36

    YYZ

    SMTWTFS

  8. WS2292

    WestJet

    08:25

    YYZ

    5.3h

    13:45

    UVF

    -M-W--S

  9. UA2498

    United Airlines

    14:15

    SAT

    1.0h

    15:15

    IAH

    SMTWTFS
    Search

  10. UA1444

    United Airlines

    20:07

    IAH

    3.4h

    00:30

    EWR

    SMTWTFS

  11. UA449

    United Airlines

    07:30

    EWR

    4.7h

    12:10

    UVF

    --T--F-

  12. DL2009

    Delta Air Lines

    16:25

    SAT

    2.4h

    19:48

    ATL

    S--WT-S
    Search

  13. DL2527

    Delta Air Lines

    20:50

    ATL

    2.2h

    23:01

    EWR

    SMTWTFS

  14. B6881

    Jetblue Airways

    07:20

    JFK

    4.8h

    12:07

    UVF

    SMTWTFS

  15. WS8257

    WestJet

    16:25

    SAT

    2.4h

    19:48

    ATL

    S--WT--
    Search

  16. WS6307

    WestJet

    21:43

    ATL

    2.2h

    23:57

    YYZ

    SMTWTFS

  17. WS2292

    WestJet

    08:25

    YYZ

    5.3h

    13:45

    UVF

    -M-W--S

  18. AA6400

    American Airlines

    17:13

    SAT

    1.3h

    18:33

    DFW

    SMTWTFS
    Search

  19. AA2929

    American Airlines

    05:00

    DFW

    2.8h

    08:46

    MIA

    SMTWTFS

  20. AA1004

    American Airlines

    11:00

    MIA

    3.8h

    15:45

    UVF

    SMTWTFS

  21. AA6400

    American Airlines

    17:13

    SAT

    1.3h

    18:33

    DFW

    SMTWTFS
    Search

  22. AA575

    American Airlines

    05:00

    DFW

    2.6h

    08:35

    CLT

    SMTWTFS

  23. AA823

    American Airlines

    09:41

    CLT

    4.5h

    14:11

    UVF

    SMTWTFS

  24. UA465

    United Airlines

    17:59

    SAT

    1.1h

    19:03

    IAH

    SMTWTFS
    Search

  25. UA1444

    United Airlines

    20:07

    IAH

    3.4h

    00:30

    EWR

    SMTWTFS

  26. B6881

    Jetblue Airways

    07:20

    JFK

    4.8h

    12:07

    UVF

    SMTWTFS

  27. UA465

    United Airlines

    17:59

    SAT

    1.1h

    19:03

    IAH

    SMTWTFS
    Search

  28. UA1444

    United Airlines

    20:07

    IAH

    3.4h

    00:30

    EWR

    SMTWTFS

  29. UA449

    United Airlines

    07:30

    EWR

    4.7h

    12:10

    UVF

    --T--F-
Find more flights and airlines

When is the cheapest time to fly from San Antonio to Castries?

Price trend charts are a great way of tracking how much your flights cost in the lead up to departure and can help you choose when to book your tickets. See how prices to Castries from San Antonio have changed and are set to move below.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from San Antonio (SAT) to Castries (SLU) the cheapest?

    Airlines adjust prices for flights from San Antonio to Castries based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from San Antonio (SAT) to Castries (SLU) cost?

    According to Trip.com's data, the lowest price is around €798.

  • What is the transportation method from the main airport to downtown in Castries?

    • The distance from Hewanorra Airport to downtown is about 30 km, by taxi about 50 minutes.
    • The distance from George F. L. Charles Airport to downtown is about 1 km, by taxi about 20 minutes.

  • How many airports are there in Castries (SLU)?

    There are 2 airport(s) near Castries (SLU): George F. L. Charles Airport and Hewanorra Airport.

How to find a cheap flight from San Antonio to Castries

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Info | San Antonio to Castries

Cheapest direct flight price€432
Off-season for travelMarch
Peak season for travelJanuary
Flight distance4,210.93 km
Popular airlineAmerican Airlines

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.