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Flights from St. Louis to Saint Croix

Search cheap flights from St. Louis to Saint Croix in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$597, and round-trip tickets start at US$789.

      • STL 05:16
        8h 40m
        1 stop
        STX 14:56
        St. Louis - Saint Croix | Fri, Jun 19 | American Airlines
        STX 09:01
        14h 56m
        1 stop
        STL 22:57
        Saint Croix - St. Louis | Thu, Jun 25 | American Airlines
        US$789 US$1,286
        39% off
        39% off
        US$1,286 US$789
      • STL 05:16
        14h 28m
        1 stop
        STX 20:44
        St. Louis - Saint Croix | Sun, Jun 21 | American Airlines
        STX 16:48
        7h 56m
        1 stop
        STL 23:44
        Saint Croix - St. Louis | Sat, Jun 27 | American Airlines
        US$824 US$1,286
        36% off
        36% off
        US$1,286 US$824
      • STL 05:14
        9h 42m
        1 stop
        STX 15:56
        St. Louis - Saint Croix | Sat, Jun 20 | American Airlines
        STX 15:46
        8h 11m
        1 stop
        STL 22:57
        Saint Croix - St. Louis | Fri, Jun 26 | American Airlines
        US$828 US$1,286
        36% off
        36% off
        US$1,286 US$828
      • STL 11:15
        8h 30m
        1 stop
        STX 20:45
        St. Louis - Saint Croix | Thu, Jun 18 | American Airlines
        STX 15:47
        19h 48m
        1 stop
        STL 10:35
        Saint Croix - St. Louis | Mon, Jun 22 | American Airlines
        US$869
        32% off
        US$1,286 US$869
      • STL 05:16
        8h 40m
        1 stop
        STX 14:56
        St. Louis - Saint Croix | Fri, Jun 26 | American Airlines
        STX 15:50
        8h 3m
        1 stop
        STL 22:53
        Saint Croix - St. Louis | Thu, Jul 2 | American Airlines
        US$911
        28% off
        US$1,286 US$911
      • STL 11:00
        8h 50m
        1 stop
        STX 20:50
        St. Louis - Saint Croix | Tue, Jul 7 | American Airlines
        STX 15:50
        8h 4m
        1 stop
        STL 22:54
        Saint Croix - St. Louis | Mon, Jul 13 | American Airlines
        US$916
        28% off
        US$1,286 US$916
      • STL 11:04
        8h 40m
        1 stop
        STX 20:44
        St. Louis - Saint Croix | Mon, Jun 15 | American Airlines
        STX 15:46
        8h 11m
        1 stop
        STL 22:57
        Saint Croix - St. Louis | Fri, Jun 19 | American Airlines
        US$977
        24% off
        US$1,286 US$977
      • STL 13:00
        17h 25m
        1 stop
        STX 14:00
        St. Louis - Saint Croix | Tue, Jun 16 | Normal Airline
        STX 15:00
        6h
        Nonstop
        STL 16:00
        Saint Croix - St. Louis | Thu, Jun 18 | Normal Airline
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        Find more flights
      • STL 06:14
        9h 56m
        2 stops
        STX 17:10
        St. Louis - Saint Croix | Thu, Jul 2 | United Airlines
        US$597 US$1,464
        59% off
        59% off
        US$1,464 US$597
      • STL 06:00
        12h 38m
        2 stops
        STX 19:38
        St. Louis - Saint Croix | Wed, Jul 1 | United Airlines
        US$711 US$1,464
        51% off
        51% off
        US$1,464 US$711
      • STL 07:08
        9h 2m
        2 stops
        STX 17:10
        St. Louis - Saint Croix | Wed, Jul 1 | Delta Air Lines
        US$959 US$1,464
        34% off
        34% off
        US$1,464 US$959
      • STL 06:14
        9h 56m
        2 stops
        STX 17:10
        St. Louis - Saint Croix | Fri, Jul 3 | United Airlines
        US$1,048
        28% off
        US$1,464 US$1,048
      • STL 06:00
        9h 15m
        2 stops
        STX 16:15
        St. Louis - Saint Croix | Thu, Jul 2 | Delta Air Lines
        US$1,112
        24% off
        US$1,464 US$1,112
      • STL 13:00
        17h 25m
        1 stop
        STX 14:00
        St. Louis - Saint Croix | Tue, Jun 16 | Normal Airline
        Find more flights
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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.

St. Louis to Saint Croix Flight Details

The distance between St. Louis and Saint Croix is about 3,383.54 km. Based on Trip.com's latest data, travel demand is highest in October. The off-season for travel is December.

Cheapest one-way flight priceUS$597
Cheapest return ticket priceUS$789
Cheapest monthDecember
Peak season for travelOctober
Flight distance3,383.54 km
Flight statistics for the St. Louis–Saint Croix route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

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

    Based on Trip.com data, United Airlines offers one-way fares as low as US$597 on Cheapest nonstop routes (e.g. STL to STX on Thu, Jul 2), while American Airlines offers Cheapest nonstop round-trips from US$789 departing on Fri, Jun 19 and returning on Thu, Jun 25.
  • 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 Thu, Jul 2, with one-way flights priced at just US$597.
    · 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 June flight calendar, it's currently cheapest to fly from St. Louis to Saint Croix on June 19, 2026 with American Airlines, with prices starting at US$789.
  • 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 the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.