Cheap flights from St. Louis to Saint Croix from $267

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Saint Croix departing on 8/28. 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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Cheap round-trip flights

Spirit Airlines Logo
10:57 am - 3:07 pmSTL-STX
27h 10m1 stop
Spirit Airlines Logo
5:24 pm - 10:02 amSTX-STL
17h 38m1 stop
$321Spirit Airlines
Find Deal
Thu, Oct 16 - Sat, Oct 25
 Logo
10:57 am - 3:07 pmSTL-STX
27h 10m1 stop
 Logo
5:24 pm - 9:22 amSTX-STL
16h 58m2 stops
Thu, Oct 16 - Sat, Oct 25
American Airlines Logo
5:23 am - 1:06 pmSTL-STX
6h 43m1 stop
American Airlines Logo
1:56 pm - 11:56 pmSTX-STL
11h 00m1 stop
$495American Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
American Airlines Logo
12:51 pm - 1:06 pmSTL-STX
23h 15m2 stops
American Airlines Logo
1:56 pm - 8:53 amSTX-STL
19h 57m2 stops
$499American Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
American Airlines Logo
5:28 am - 1:03 pmSTL-STX
6h 35m1 stop
American Airlines Logo
1:53 pm - 11:59 pmSTX-STL
11h 06m1 stop
$645American Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
American Airlines Logo
5:28 am - 1:03 pmSTL-STX
6h 35m1 stop
American Airlines Logo
1:53 pm - 10:21 amSTX-STL
21h 28m2 stops
$649American Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
American Airlines Logo
5:23 am - 1:06 pmSTL-STX
6h 43m1 stop
American Airlines Logo
3:40 pm - 11:56 pmSTX-STL
9h 16m1 stop
$710American Airlines
Find Deal
Wed, Oct 15 - Sat, Oct 25
 Logo
9:50 am - 11:07 amSTL-STX
24h 17m3 stops
 Logo
12:13 pm - 12:00 pmSTX-STL
24h 47m3 stops
Thu, Sep 4 - Mon, Sep 8
United Airlines Logo
12:25 pm - 6:00 pmSTL-STX
28h 35m2 stops
United Airlines Logo
10:34 am - 9:59 pmSTX-STL
12h 25m2 stops
$1,184United Airlines
Find Deal
Sun, Oct 19 - Sun, Oct 26
United Airlines Logo
6:15 am - 6:00 pmSTL-STX
10h 45m2 stops
United Airlines Logo
10:34 am - 9:59 pmSTX-STL
12h 25m2 stops
$1,305United Airlines
Find Deal
Sun, Oct 19 - Sun, Oct 26

American Airlines flights from St. Louis to Saint Croix

Our best American Airlines deals on St. Louis to Saint Croix flight tickets
American Airlines
Oct 7
STL5:23 amLambert-St Louis
6h 43m
1 stop
STX1:06 pmChristiansted Henry Rohlsen
Oct 14
STX1:56 pmChristiansted Henry Rohlsen
11h 00m
1 stop
STL11:56 pmLambert-St Louis
American Airlines
Oct 7
STL12:51 pmLambert-St Louis
23h 15m
2 stops
STX1:06 pmChristiansted Henry Rohlsen
Oct 14
STX1:56 pmChristiansted Henry Rohlsen
19h 57m
2 stops
STL8:53 amLambert-St Louis
American Airlines
Sep 4
STL5:28 amLambert-St Louis
6h 35m
1 stop
STX1:03 pmChristiansted Henry Rohlsen
Sep 8
STX1:53 pmChristiansted Henry Rohlsen
11h 06m
1 stop
STL11:59 pmLambert-St Louis

United Airlines flights from St. Louis to Saint Croix

Our best United Airlines deals on St. Louis to Saint Croix flight tickets
United Airlines
Oct 19
STL12:25 pmLambert-St Louis
28h 35m
2 stops
STX6:00 pmChristiansted Henry Rohlsen
Oct 26
STX10:34 amChristiansted Henry Rohlsen
12h 25m
2 stops
STL9:59 pmLambert-St Louis
United Airlines
Oct 19
STL6:15 amLambert-St Louis
10h 45m
2 stops
STX6:00 pmChristiansted Henry Rohlsen
Oct 26
STX10:34 amChristiansted Henry Rohlsen
12h 25m
2 stops
STL9:59 pmLambert-St Louis

momondo 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, momondo users made 832,500 searches. Data last updated August 21, 2025.
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

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Thu 10/16

10:57 am-3:07 pm

1 stop27h 10m

Christiansted Henry Rohlsen

Sat 10/25

5:24 pm-10:02 am

1 stop17h 38m

$321

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Thu 10/16

10:57 am-3:07 pm

1 stop27h 10m

Christiansted Henry Rohlsen

Sat 10/25

5:24 pm-9:22 am

2 stops16h 58m

$411

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 10/7

5:23 am-1:06 pm

1 stop6h 43m

Christiansted Henry Rohlsen

Tue 10/14

1:56 pm-11:56 pm

1 stop11h 00m

$495

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 10/7

12:51 pm-1:06 pm

2 stops23h 15m

Christiansted Henry Rohlsen

Tue 10/14

1:56 pm-8:53 am

2 stops19h 57m

$499

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Thu 9/4

5:28 am-1:03 pm

1 stop6h 35m

Christiansted Henry Rohlsen

Mon 9/8

1:53 pm-11:59 pm

1 stop11h 06m

$645

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Thu 9/4

5:28 am-1:03 pm

1 stop6h 35m

Christiansted Henry Rohlsen

Mon 9/8

1:53 pm-10:21 am

2 stops21h 28m

$649

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Wed 10/15

5:23 am-1:06 pm

1 stop6h 43m

Christiansted Henry Rohlsen

Sat 10/25

3:40 pm-11:56 pm

1 stop9h 16m

$710

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Thu 9/4

9:50 am-11:07 am

3 stops24h 17m

Christiansted Henry Rohlsen

Mon 9/8

12:13 pm-12:00 pm

3 stops24h 47m

$773

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Sun 10/19

12:25 pm-6:00 pm

2 stops28h 35m

Christiansted Henry Rohlsen

Sun 10/26

10:34 am-9:59 pm

2 stops12h 25m

$1,184

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Sun 10/19

6:15 am-6:00 pm

2 stops10h 45m

Christiansted Henry Rohlsen

Sun 10/26

10:34 am-9:59 pm

2 stops12h 25m

$1,305

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Saint Croix from

How to get the cheapest flight ticket from St. Louis to Saint Croix

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 cheapest airline that flies from Lambert-St Louis to Saint Croix?

Spirit Airlines and American Airlines are the most popular carriers operating from Lambert-St Louis to Saint Croix

What airlines fly to Saint Croix?

American Airlines, Spirit Airlines and Delta are the top three most popular airlines that fly to Saint Croix from St. Louis according to our data. American Airlines is the first choice among our users, with 82% of people opting to fly with this airline when traveling to Saint Croix. Keep in mind that there are 3 different airlines that fly to Saint Croix on a routine basis, so you have a few additional options to choose from.

Cheap St. Louis to Saint Croix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Saint Croix

Direct flights

None
There are no direct flights from St. Louis to Saint Croix. There are no popular flight routes from St. Louis to Saint Croix.
  • When did momondo last update prices for flights from Lambert-St Louis Airport to Saint Croix?

    Prices for flights from Lambert-St Louis Airport to Saint Croix are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Saint Croix?

  • How old do you have to be to fly from Lambert-St Louis Airport to Saint Croix?

    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 Lambert-St Louis Airport to Saint Croix.

  • What documentation or ID do you need to fly to Saint Croix?

    The necessary travel and health documents for your Saint Croix trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Saint Croix

Compare and see reviews for airlines that fly from St. Louis to Saint Croix with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $259Free CancellationRating
6.3
8,035 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $367Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $387Free CancellationRating
7.9
7,981 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Saint Croix?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Saint Croix from St. Louis.

Can I find flights from St. Louis to Saint Croix with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Saint Croix flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Saint Croix?

momondo helps you find the best flight between St. Louis and Saint Croix by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Saint Croix right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Saint Croix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Tue 8/26
Tue 9/2

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