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Flights from St. Louis to Saint Croix

Find flight deals from St. Louis to Saint Croix for the next 3 months. Book one way flights from $1,828 or round trip flights from $720.

      • STL 5:15 AM
        14h 46m
        1 stop
        STX 9:01 PM
        St. Louis - Saint Croix | Fri, May 29 | American Airlines
        STX 8:08 AM
        15h 50m
        1 stop
        STL 10:58 PM
        Saint Croix - St. Louis | Mon, Jun 1 | American Airlines
        $720 $1,331
        46% off
        46% off
        $1,331 $720
      • STL 5:24 AM
        6h 51m
        1 stop
        STX 1:15 PM
        St. Louis - Saint Croix | Thu, May 21 | American Airlines
        STX 3:48 PM
        8h 10m
        1 stop
        STL 10:58 PM
        Saint Croix - St. Louis | Mon, May 25 | American Airlines
        $858 $1,331
        36% off
        36% off
        $1,331 $858
      • STL 5:24 AM
        9h 49m
        1 stop
        STX 4:13 PM
        St. Louis - Saint Croix | Sat, May 16 | American Airlines
        STX 2:05 PM
        9h 19m
        1 stop
        STL 10:24 PM
        Saint Croix - St. Louis | Wed, May 20 | American Airlines
        $859 $1,331
        35% off
        35% off
        $1,331 $859
      • STL 11:15 AM
        8h 30m
        1 stop
        STX 8:45 PM
        St. Louis - Saint Croix | Fri, Jun 19 | American Airlines
        STX 3:47 PM
        19h 48m
        1 stop
        STL 10:35 AM
        Saint Croix - St. Louis | Tue, Jun 23 | American Airlines
        $865
        35% off
        $1,331 $865
      • STL 11:04 AM
        8h 37m
        1 stop
        STX 8:41 PM
        St. Louis - Saint Croix | Sat, May 23 | American Airlines
        STX 3:47 PM
        8h 11m
        1 stop
        STL 10:58 PM
        Saint Croix - St. Louis | Fri, May 29 | American Airlines
        $971
        27% off
        $1,331 $971
      • STL 1:00 PM
        17h 25m
        1 stop
        STX 2:00 PM
        St. Louis - Saint Croix | Wed, May 13 | Normal Airline
        STX 3:00 PM
        6h
        Nonstop
        STL 4:00 PM
        Saint Croix - St. Louis | Fri, May 15 | Normal Airline
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      • STL 4:41 PM
        20h 4m
        1 stop
        STX 1:45 PM
        St. Louis - Saint Croix | Mon, May 18 | Delta Air Lines
        $1,828 $2,505
        27% off
        27% off
        $2,505 $1,828
      • STL 1:00 PM
        17h 25m
        1 stop
        STX 2:00 PM
        St. Louis - Saint Croix | Wed, May 13 | Normal Airline
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Displayed flight fares from St. Louis to Saint Croix are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Frequently Asked Questions

  • What are the cheapest flights from St. Louis to Saint Croix (STL-STX)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as $1,828 on Cheapest nonstop routes (e.g. STL to STX on Mon, May 18), while American Airlines offers Cheapest nonstop round-trips from $720 departing on Fri, May 29 and returning on Mon, Jun 1.
  • At the moment, several airlines serve connecting flights from St. Louis to Saint Croix, including: Delta Air Lines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from St. Louis to Saint Croix is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from St. Louis to Saint Croix, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, May 18, with one-way flights priced at just $1,828.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Saint Croix travel is around October.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from St. Louis to Saint Croix is December, when demand for travel is lower.
  • After crunching the numbers on our May flight calendar, it's currently cheapest to fly from St. Louis to Saint Croix on May 28, 2026 with American Airlines, with prices starting at $720.
  • You can land at any one of the following hubs in Saint Croix, with St. Louis Lambert International Airport to Henry E. Rohlsen Airport (STL-STX) is by far the most common option on this route: St. Croix Seaplane Base (SSB) Henry E. Rohlsen Airport (STX).
  • The time difference between Saint Croix and St. Louis is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.