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Saint Croix

$288+ Cheap flights from St. Louis (STL) to Saint Croix

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STX
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap flight deals from St. Louis to Saint Croix

Cheapest flights from St. Louis to Saint Croix
Explore the most affordable flight options available from St. Louis to Saint Croix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2026.

This American Airlines deal was found by Cheapflights users on 7/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:00 am
STL
-
STX
1 stop9h 04m
American Airlines
Tue 9/83:54 pm
STX
-
STL
1 stop7h 46m
American Airlines
Deal found 7/21$486
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:00 am
STL
-
STX
1 stop9h 39m
American Airlines
Wed 9/234:40 pm
STX
-
STL
2 stops21h 23m
American Airlines
Deal found 7/22$490
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:44 pm
STL
-
STX
2 stops21h 18m
American Airlines
Wed 10/285:08 pm
STX
-
STL
2 stops20h 01m
American Airlines
Deal found 7/22$495
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:00 am
STL
-
STX
1 stop9h 39m
American Airlines
Tue 9/224:40 pm
STX
-
STL
1 stop30h 09m
American Airlines
Deal found 7/22$550
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:00 am
STL
-
STX
1 stop9h 04m
American Airlines
Sun 8/168:30 am
STX
-
STL
1 stop15h 10m
American Airlines
Deal found 7/23$597

Find flight deals from St. Louis to Saint Croix

Keep the following information in mind while searching for St. Louis to Saint Croix flight deals. Data was last updated July 25, 2026.

Round-trip from

$486
(American Airlines)
From Lambert-St Louis to Saint Croix
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Saint Croix 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 July 25, 2026.
Use the filters below to find and compare flights from St. Louis to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 9/1

6:00 am-9:29 pm

2 stops14h 29m

Christiansted Henry Rohlsen

Tue 9/8

8:30 am-10:40 pm

1 stop15h 10m

$490

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 9/18

5:00 am-3:39 pm

1 stop9h 39m

Christiansted Henry Rohlsen

Tue 9/22

4:40 pm-8:46 am

2 stops17h 06m

$490
Quickest round-trip

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Wed 10/21

5:00 am-1:07 pm

1 stop7h 07m

Christiansted Henry Rohlsen

Wed 10/28

5:08 pm-10:41 am

2 stops18h 33m

$495

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 9/18

5:00 am-3:39 pm

1 stop9h 39m

Christiansted Henry Rohlsen

Wed 9/23

4:40 pm-1:21 pm

1 stop21h 41m

$550

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 7/31

7:56 pm-4:00 pm

2 stops19h 04m

Christiansted Henry Rohlsen

Sat 8/8

8:11 am-11:26 pm

2 stops16h 15m

$729
Cheapest one-way

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Wed 10/28

10:35 am-8:20 am

3 stops20h 45m

$325

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Thu 10/29

10:35 am-8:20 am

3 stops20h 45m

$326

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Wed 10/28

5:00 am-4:02 pm

1 stop10h 02m

$407
Quickest one-way

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Thu 10/29

5:00 am-1:07 pm

1 stop7h 07m

$462

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

Sorted by cheapest first

Best time to book a flight from St. Louis to Saint Croix

Have a flexible travel schedule? Discover the best time to fly to Saint Croix from St. Louis 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 St. Louis to Saint Croix

What is the cheapest month to book a flight from St. Louis to Saint Croix?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Saint Croix (average of $494). Flying from St. Louis to Saint Croix in July is currently the most expensive (average of $759). 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.

How much does it cost to fly round-trip from St. Louis to Saint Croix?

Airfare is below average for this route at the moment.
St. Louis to Saint Croix flights typically cost between $642 and $764 in September.
The cheapest round-trip price found within the last 5 days was $486 on American Airlines (Sep 1-Sep 8).

Reviews of airlines servicing Saint Croix

Get insights into the airlines that provide service to Saint Croix. 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 Saint Croix. Reviews last updated July 25, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from St. Louis to Saint Croix to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,486 reviews

Food

7.2

Overall

7.8

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,486 reviews
Delta
7.8
Good
8,486 reviews

Food

7.2

Overall

7.8

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,847 reviews
Delta
7.8
Good
8,486 reviews

Food

7.2

Overall

7.8

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Saint Croix. 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 from for flights from St. Louis to Saint Croix?

    If you book a flight to Saint Croix from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from St. Louis to Saint Croix?

    Departing from St. Louis to Saint Croix will take you 14h 29m. St. Louis and Saint Croix are separated by a distance of 2115 mi.

  • Can I find deals for flights from St. Louis to Saint Croix that include hotel bookings?

    Yes. In addition to deals on St. Louis to Saint Croix flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Saint Croix?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Saint Croix.

  • Can I find deals for business class flights from St. Louis to Saint Croix?

    Yes. Cheapflights offers flight deals from St. Louis to Saint Croix 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 St. Louis to Saint Croix?

    Currently, October is the cheapest month in which you can book a flight from St. Louis to Saint Croix (average of $494). Flying from St. Louis to Saint Croix in July is currently the most expensive (average of $759). 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

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Alternative routes for St. Louis to Saint Croix

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from St. Louis to Saint Croix

Discover the top 2 airlines that operate flights from St. Louis to Saint Croix. 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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$440Average$620FlexibilityNo cancel feeOn-time71%
DeltaCheapest$465Average$685FlexibilityNo cancel feeOn-timeN/A

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