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Cheap flights from Rapid City to Saint Croix from $450

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to Saint Croix departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Rapid City to Saint Croix

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:53 am - 1:15 pm
RAP
-
STX
23h 22m
2 stops
American Airlines Logo
3:47 pm - 11:20 am
STX
-
RAP
21h 33m
2 stops
$450American Airlines
Tue, May 12 - Fri, May 29
American Airlines Logo
6:00 am - 1:15 pm
RAP
-
STX
29h 15m
2 stops
American Airlines Logo
3:47 pm - 9:49 am
STX
-
RAP
20h 02m
2 stops
$560American Airlines
Sat, May 9 - Sun, May 31
American Airlines Logo
1:08 pm - 1:15 pm
RAP
-
STX
22h 07m
2 stops
American Airlines Logo
2:05 pm - 12:38 pm
STX
-
RAP
24h 33m
2 stops
$607American Airlines
Tue, Apr 7 - Sun, Apr 12
American Airlines Logo
11:53 am - 4:13 pm
RAP
-
STX
26h 20m
2 stops
American Airlines Logo
8:08 am - 12:17 pm
STX
-
RAP
30h 09m
2 stops
$635American Airlines
Thu, May 14 - Tue, May 26
American Airlines Logo
1:08 pm - 1:15 pm
RAP
-
STX
22h 07m
2 stops
American Airlines Logo
3:47 pm - 9:49 am
STX
-
RAP
20h 02m
2 stops
$717American Airlines
Wed, May 6 - Wed, May 27
American Airlines Logo
11:53 am - 4:13 pm
RAP
-
STX
26h 20m
2 stops
American Airlines Logo
3:47 pm - 11:14 am
STX
-
RAP
21h 27m
2 stops
$792American Airlines
Thu, May 14 - Wed, May 27
American Airlines Logo
4:57 pm - 1:15 pm
RAP
-
STX
18h 18m
3 stops
American Airlines Logo
3:47 pm - 11:20 am
STX
-
RAP
21h 33m
2 stops
$828American Airlines
Sat, May 9 - Fri, May 29
American Airlines Logo
4:57 pm - 1:15 pm
RAP
-
STX
18h 18m
3 stops
American Airlines Logo
3:47 pm - 11:20 am
STX
-
RAP
21h 33m
2 stops
$837American Airlines
Tue, May 12 - Fri, May 29
American Airlines Logo
4:57 pm - 1:15 pm
RAP
-
STX
18h 18m
3 stops
American Airlines Logo
5:14 pm - 4:27 pm
STX
-
RAP
25h 13m
2 stops
$903American Airlines
Tue, Apr 7 - Sun, Apr 12
United Airlines Logo
7:00 am - 7:38 pm
RAP
-
STX
10h 38m
2 stops
United Airlines Logo
3:14 pm - 8:33 pm
STX
-
RAP
31h 19m
2 stops
$1,712United Airlines
Mon, Jul 27 - Tue, Aug 4

American Airlines flights from Rapid City to Saint Croix

Our best American Airlines deals on Rapid City to Saint Croix flight tickets
American Airlines
May 12
RAP11:53 amRapid City
23h 22m
2 stops
STX1:15 pmChristiansted Henry Rohlsen
May 29
STX3:47 pmChristiansted Henry Rohlsen
21h 33m
2 stops
RAP11:20 amRapid City
$450
American Airlines
May 9
RAP6:00 amRapid City
29h 15m
2 stops
STX1:15 pmChristiansted Henry Rohlsen
May 31
STX3:47 pmChristiansted Henry Rohlsen
20h 02m
2 stops
RAP9:49 amRapid City
$560
American Airlines
Apr 7
RAP1:08 pmRapid City
22h 07m
2 stops
STX1:15 pmChristiansted Henry Rohlsen
Apr 12
STX2:05 pmChristiansted Henry Rohlsen
24h 33m
2 stops
RAP12:38 pmRapid City
$607

United Airlines flights from Rapid City to Saint Croix

Our best United Airlines deals on Rapid City to Saint Croix flight tickets
United Airlines
Jul 27
RAP7:00 amRapid City
10h 38m
2 stops
STX7:38 pmChristiansted Henry Rohlsen
Aug 4
STX3:14 pmChristiansted Henry Rohlsen
31h 19m
2 stops
RAP8:33 pmRapid City
$1,712
United Airlines
Apr 25
RAP7:00 amRapid City
23h 55m
2 stops
STX8:55 amChristiansted Henry Rohlsen
Apr 29
STX8:30 amChristiansted Henry Rohlsen
33h 25m
2 stops
RAP3:55 pmRapid City
$1,999
United Airlines
Apr 25
RAP9:20 amRapid City
21h 35m
2 stops
STX8:55 amChristiansted Henry Rohlsen
Apr 29
STX8:30 amChristiansted Henry Rohlsen
39h 16m
2 stops
RAP9:46 pmRapid City
$2,025

momondo Fare Finder

 
Customize your flight search to find flights from Rapid City 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 February 28, 2026.
Use the filters below to find and compare flights from Rapid City to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Tue 5/12

11:53 am-1:15 pm

2 stops23h 22m

Christiansted Henry Rohlsen

Fri 5/29

3:47 pm-11:20 am

2 stops21h 33m

$450

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Sat 5/9

6:00 am-1:15 pm

2 stops29h 15m

Christiansted Henry Rohlsen

Sun 5/31

3:47 pm-9:49 am

2 stops20h 02m

$560

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Tue 4/7

1:08 pm-1:15 pm

2 stops22h 07m

Christiansted Henry Rohlsen

Sun 4/12

2:05 pm-12:38 pm

2 stops24h 33m

$607

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Thu 5/14

11:53 am-4:13 pm

2 stops26h 20m

Christiansted Henry Rohlsen

Tue 5/26

8:08 am-12:17 pm

2 stops30h 09m

$635

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Wed 5/6

1:08 pm-1:15 pm

2 stops22h 07m

Christiansted Henry Rohlsen

Wed 5/27

3:47 pm-9:49 am

2 stops20h 02m

$717

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Thu 5/14

11:53 am-4:13 pm

2 stops26h 20m

Christiansted Henry Rohlsen

Wed 5/27

3:47 pm-11:14 am

2 stops21h 27m

$792

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Sat 5/9

4:57 pm-1:15 pm

3 stops18h 18m

Christiansted Henry Rohlsen

Fri 5/29

3:47 pm-11:20 am

2 stops21h 33m

$828

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Tue 5/12

4:57 pm-1:15 pm

3 stops18h 18m

Christiansted Henry Rohlsen

Fri 5/29

3:47 pm-11:20 am

2 stops21h 33m

$837

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Tue 4/7

4:57 pm-1:15 pm

3 stops18h 18m

Christiansted Henry Rohlsen

Sun 4/12

5:14 pm-4:27 pm

2 stops25h 13m

$903

Rapid CityChristiansted

RAP - STX

RAPSTX

Rapid City

Mon 7/27

7:00 am-7:38 pm

2 stops10h 38m

Christiansted Henry Rohlsen

Tue 8/4

3:14 pm-8:33 pm

2 stops31h 19m

$1,712

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Rapid City to Saint Croix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rapid City to Saint Croix

Fastest flight time

10h 38m

Direct flights

None
The fastest flight from Rapid City to Saint Croix takes 10h 38m
There are no direct flights from Rapid City to Saint Croix. There are no popular flight routes from Rapid City to Saint Croix.
Search flight deals

  • When did momondo last update prices for flights from Rapid City Airport to Saint Croix?

    Prices for flights from Rapid City Airport to Saint Croix are updated daily.

  • How old do you have to be to fly from Rapid City Airport to Saint Croix?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City 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.

  • How do I get Price Alerts for flights from Rapid City to Saint Croix?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Rapid City from Saint Croix. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Rapid City to Saint Croix with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Rapid City to Saint Croix?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rapid City to Saint Croix. momondo saves you time and could save you money on your trip.

Can I find flights from Rapid City to Saint Croix with flexible booking policies on momondo?

momondo does allow users to show only those flights to Saint Croix from Rapid City which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Rapid City to Saint Croix?

momondo helps you find the best flight between Rapid City 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 Rapid City to Saint Croix right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Rapid City to Saint Croix flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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