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Cheap flights from St. Louis to Saint Croix from $213

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 5/21. 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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Find the cheapest flights from St. Louis to Saint Croix

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:15 am - 8:45 pm
STL
-
STX
13h 30m
2 stops
American Airlines Logo
9:00 am - 11:59 pm
STX
-
STL
15h 59m
2 stops
$544American Airlines
Tue, May 26 - Mon, Jun 1
American Airlines Logo
5:14 am - 8:45 pm
STL
-
STX
14h 31m
2 stops
American Airlines Logo
9:00 am - 10:58 pm
STX
-
STL
14h 58m
1 stop
$591American Airlines
Tue, May 26 - Mon, Jun 1
American Airlines Logo
5:33 am - 12:55 pm
STL
-
STX
6h 22m
1 stop
American Airlines Logo
1:50 pm - 11:12 pm
STX
-
STL
10h 22m
1 stop
$614American Airlines
Fri, Sep 18 - Tue, Sep 22
American Airlines Logo
11:00 am - 8:50 pm
STL
-
STX
8h 50m
1 stop
American Airlines Logo
3:54 pm - 10:40 pm
STX
-
STL
7h 46m
1 stop
$615American Airlines
Tue, Aug 4 - Tue, Aug 25
American Airlines Logo
5:33 am - 12:55 pm
STL
-
STX
6h 22m
1 stop
American Airlines Logo
1:50 pm - 11:20 pm
STX
-
STL
10h 30m
2 stops
$618American Airlines
Fri, Sep 18 - Tue, Sep 22
American Airlines Logo
5:29 am - 8:50 pm
STL
-
STX
14h 21m
2 stops
American Airlines Logo
8:04 am - 10:40 pm
STX
-
STL
15h 36m
1 stop
$619American Airlines
Tue, Aug 4 - Tue, Aug 25
American Airlines Logo
5:16 am - 8:44 pm
STL
-
STX
14h 28m
1 stop
American Airlines Logo
9:01 am - 8:52 pm
STX
-
STL
12h 51m
2 stops
$620American Airlines
Tue, Jun 9 - Tue, Jun 16
American Airlines Logo
5:00 am - 8:38 pm
STL
-
STX
14h 38m
1 stop
American Airlines Logo
1:50 pm - 11:12 pm
STX
-
STL
10h 22m
1 stop
$639American Airlines
Fri, Sep 4 - Wed, Sep 9
American Airlines Logo
11:00 am - 8:50 pm
STL
-
STX
8h 50m
1 stop
American Airlines Logo
3:50 pm - 10:53 pm
STX
-
STL
8h 03m
1 stop
$641American Airlines
Fri, Jul 3 - Tue, Jul 7
American Airlines Logo
3:29 pm - 12:55 pm
STL
-
STX
20h 26m
2 stops
American Airlines Logo
1:50 pm - 8:02 am
STX
-
STL
19h 12m
2 stops
$643American Airlines
Fri, Sep 18 - Wed, Sep 23

American Airlines flights from St. Louis to Saint Croix

Our best American Airlines deals on St. Louis to Saint Croix flight tickets
American Airlines
May 26
STL6:15 amLambert-St Louis
13h 30m
2 stops
STX8:45 pmChristiansted Henry Rohlsen
Jun 1
STX9:00 amChristiansted Henry Rohlsen
15h 59m
2 stops
STL11:59 pmLambert-St Louis
$544
American Airlines
May 23
STL6:00 amLambert-St Louis
13h 45m
2 stops
STX8:45 pmChristiansted Henry Rohlsen
Jun 3
STX3:48 pmChristiansted Henry Rohlsen
17h 44m
2 stops
STL8:32 amLambert-St Louis
$545
American Airlines
May 26
STL5:14 amLambert-St Louis
14h 31m
2 stops
STX8:45 pmChristiansted Henry Rohlsen
Jun 1
STX9:00 amChristiansted Henry Rohlsen
14h 58m
1 stop
STL10:58 pmLambert-St Louis
$591

United Airlines flights from St. Louis to Saint Croix

Our best United Airlines deals on St. Louis to Saint Croix flight tickets
United Airlines
Aug 31
STL11:15 amLambert-St Louis
31h 23m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Sep 3
STX10:25 amChristiansted Henry Rohlsen
14h 13m
2 stops
STL11:38 pmLambert-St Louis
$1,712
United Airlines
Aug 1
STL6:00 amLambert-St Louis
10h 10m
2 stops
STX5:10 pmChristiansted Henry Rohlsen
Aug 9
STX9:59 amChristiansted Henry Rohlsen
14h 45m
2 stops
STL11:44 pmLambert-St Louis
$1,731
United Airlines
Aug 31
STL11:15 amLambert-St Louis
31h 23m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Sep 2
STX3:14 pmChristiansted Henry Rohlsen
32h 45m
2 stops
STL10:59 pmLambert-St Louis
$1,858

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 May 15, 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 5/26

6:15 am-8:45 pm

2 stops13h 30m

Christiansted Henry Rohlsen

Mon 6/1

9:00 am-11:59 pm

2 stops15h 59m

$544

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 5/26

5:14 am-8:45 pm

2 stops14h 31m

Christiansted Henry Rohlsen

Mon 6/1

9:00 am-10:58 pm

1 stop14h 58m

$591

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 9/18

5:33 am-12:55 pm

1 stop6h 22m

Christiansted Henry Rohlsen

Tue 9/22

1:50 pm-11:12 pm

1 stop10h 22m

$614
Quickest round-trip

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 8/4

11:00 am-8:50 pm

1 stop8h 50m

Christiansted Henry Rohlsen

Tue 8/25

3:54 pm-10:40 pm

1 stop7h 46m

$615

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 9/18

5:33 am-12:55 pm

1 stop6h 22m

Christiansted Henry Rohlsen

Tue 9/22

1:50 pm-11:20 pm

2 stops10h 30m

$618

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 8/4

5:29 am-8:50 pm

2 stops14h 21m

Christiansted Henry Rohlsen

Tue 8/25

8:04 am-10:40 pm

1 stop15h 36m

$619

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Tue 6/9

5:16 am-8:44 pm

1 stop14h 28m

Christiansted Henry Rohlsen

Tue 6/16

9:01 am-8:52 pm

2 stops12h 51m

$620

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 9/4

5:00 am-8:38 pm

1 stop14h 38m

Christiansted Henry Rohlsen

Wed 9/9

1:50 pm-11:12 pm

1 stop10h 22m

$639

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 7/3

11:00 am-8:50 pm

1 stop8h 50m

Christiansted Henry Rohlsen

Tue 7/7

3:50 pm-10:53 pm

1 stop8h 03m

$641

St. LouisChristiansted

STL - STX

STLSTX

Lambert-St Louis

Fri 9/18

3:29 pm-12:55 pm

2 stops20h 26m

Christiansted Henry Rohlsen

Wed 9/23

1:50 pm-8:02 am

2 stops19h 12m

$643

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 month to fly to Saint Croix?

The month of February is another great option to travel to Saint Croix, with average flight prices from St. Louis averaging around $363.

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

Fastest flight time

7h 03m

Direct flights

None
The fastest flight from St. Louis to Saint Croix takes 7h 03m
There are no direct flights from St. Louis to Saint Croix. There are no popular flight routes from St. Louis to Saint Croix.
Search flight deals

Frequently asked questions about flying 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
American AirlinesPriceFrom $443Free CancellationRating
7.1
11,662 reviews
Search American Airlines 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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