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Cheap flights from Montana to Saint Croix from $655

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Saint Croix departing on 3/9. 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

Enter your travel dates to find the best prices.
American Airlines Logo
1:48 pm - 12:56 pm
BIL
-
STX
21h 08m
2 stops
American Airlines Logo
5:17 pm - 1:18 pm
STX
-
BIL
22h 01m
2 stops
$655American Airlines
Mon, Mar 9 - Fri, Mar 13
American Airlines Logo
6:45 am - 1:15 pm
MSO
-
STX
28h 30m
2 stops
American Airlines Logo
3:47 pm - 1:18 pm
STX
-
MSO
23h 31m
2 stops
$735American Airlines
Sat, May 16 - Fri, May 22
American Airlines Logo
6:45 am - 1:15 pm
MSO
-
STX
28h 30m
2 stops
American Airlines Logo
3:47 pm - 1:18 pm
STX
-
MSO
23h 31m
2 stops
$755American Airlines
Sat, May 16 - Fri, May 22
American Airlines Logo
1:19 pm - 8:41 pm
BIL
-
STX
29h 22m
2 stops
American Airlines Logo
3:47 pm - 12:08 pm
STX
-
BIL
22h 21m
2 stops
$940American Airlines
Mon, Jun 8 - Mon, Jun 15
American Airlines Logo
1:08 pm - 1:15 pm
MSO
-
STX
22h 07m
3 stops
American Airlines Logo
3:47 pm - 1:18 pm
STX
-
MSO
23h 31m
2 stops
$969American Airlines
Sat, May 16 - Fri, May 22
American Airlines Logo
1:08 pm - 1:15 pm
MSO
-
STX
22h 07m
3 stops
American Airlines Logo
3:47 pm - 1:18 pm
STX
-
MSO
23h 31m
2 stops
$989American Airlines
Sat, May 16 - Fri, May 22
American Airlines Logo
1:48 pm - 12:56 pm
BIL
-
STX
21h 08m
2 stops
American Airlines Logo
5:17 pm - 1:18 pm
STX
-
BIL
22h 01m
3 stops
$1,002American Airlines
Mon, Mar 9 - Fri, Mar 13
American Airlines Logo
1:19 pm - 2:57 pm
BIL
-
STX
23h 38m
3 stops
American Airlines Logo
3:47 pm - 12:08 pm
STX
-
BIL
22h 21m
2 stops
$1,232American Airlines
Mon, Jun 8 - Mon, Jun 15
American Airlines Logo
1:08 pm - 1:15 pm
MSO
-
STX
22h 07m
3 stops
American Airlines Logo
8:08 am - 10:38 pm
STX
-
MSO
16h 30m
3 stops
$1,343American Airlines
Sat, May 16 - Fri, May 22
American Airlines Logo
1:08 pm - 1:15 pm
MSO
-
STX
22h 07m
3 stops
American Airlines Logo
8:08 am - 10:38 pm
STX
-
MSO
16h 30m
3 stops
$1,363American Airlines
Sat, May 16 - Fri, May 22

American Airlines flights from Montana to Saint Croix

Our best American Airlines deals on Montana to Saint Croix flight tickets
American Airlines
Mar 9
BIL1:48 pmBillings Logan Intl
21h 08m
2 stops
STX12:56 pmChristiansted Henry Rohlsen
Mar 13
STX5:17 pmChristiansted Henry Rohlsen
22h 01m
2 stops
BIL1:18 pmBillings Logan Intl
$655
American Airlines
May 16
MSO6:45 amMissoula Johnson-Bell Field
28h 30m
2 stops
STX1:15 pmChristiansted Henry Rohlsen
May 22
STX3:47 pmChristiansted Henry Rohlsen
23h 31m
2 stops
MSO1:18 pmMissoula Johnson-Bell Field
$735
American Airlines
May 16
MSO6:45 amMissoula Johnson-Bell Field
28h 30m
2 stops
STX1:15 pmChristiansted Henry Rohlsen
May 22
STX3:47 pmChristiansted Henry Rohlsen
23h 31m
2 stops
MSO1:18 pmMissoula Johnson-Bell Field
$755

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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 24, 2026.
Use the filters below to find and compare flights from Montana to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BillingsChristiansted

BIL - STX

BILSTX

Billings Logan Intl

Mon 3/9

1:48 pm-12:56 pm

2 stops21h 08m

Christiansted Henry Rohlsen

Fri 3/13

5:17 pm-1:18 pm

2 stops22h 01m

$655

MissoulaChristiansted

MSO - STX

MSOSTX

Missoula Johnson-Bell Field

Sat 5/16

6:45 am-1:15 pm

2 stops28h 30m

Christiansted Henry Rohlsen

Fri 5/22

3:47 pm-1:18 pm

2 stops23h 31m

$735

MissoulaChristiansted

MSO - STX

MSOSTX

Missoula Johnson-Bell Field

Sat 5/16

6:45 am-1:15 pm

2 stops28h 30m

Christiansted Henry Rohlsen

Fri 5/22

3:47 pm-1:18 pm

2 stops23h 31m

$755

BillingsChristiansted

BIL - STX

BILSTX

Billings Logan Intl

Mon 6/8

1:19 pm-8:41 pm

2 stops29h 22m

Christiansted Henry Rohlsen

Mon 6/15

3:47 pm-12:08 pm

2 stops22h 21m

$940

MissoulaChristiansted

MSO - STX

MSOSTX

Missoula Johnson-Bell Field

Sat 5/16

1:08 pm-1:15 pm

3 stops22h 07m

Christiansted Henry Rohlsen

Fri 5/22

3:47 pm-1:18 pm

2 stops23h 31m

$969

MissoulaChristiansted

MSO - STX

MSOSTX

Missoula Johnson-Bell Field

Sat 5/16

1:08 pm-1:15 pm

3 stops22h 07m

Christiansted Henry Rohlsen

Fri 5/22

3:47 pm-1:18 pm

2 stops23h 31m

$989

BillingsChristiansted

BIL - STX

BILSTX

Billings Logan Intl

Mon 3/9

1:48 pm-12:56 pm

2 stops21h 08m

Christiansted Henry Rohlsen

Fri 3/13

5:17 pm-1:18 pm

3 stops22h 01m

$1,002

BillingsChristiansted

BIL - STX

BILSTX

Billings Logan Intl

Mon 6/8

1:19 pm-2:57 pm

3 stops23h 38m

Christiansted Henry Rohlsen

Mon 6/15

3:47 pm-12:08 pm

2 stops22h 21m

$1,232

MissoulaChristiansted

MSO - STX

MSOSTX

Missoula Johnson-Bell Field

Sat 5/16

1:08 pm-1:15 pm

3 stops22h 07m

Christiansted Henry Rohlsen

Fri 5/22

8:08 am-10:38 pm

3 stops16h 30m

$1,343

MissoulaChristiansted

MSO - STX

MSOSTX

Missoula Johnson-Bell Field

Sat 5/16

1:08 pm-1:15 pm

3 stops22h 07m

Christiansted Henry Rohlsen

Fri 5/22

8:08 am-10:38 pm

3 stops16h 30m

$1,363

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Croix from

How to get the cheapest flight ticket from Montana 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

How long is the flight from Montana to Saint Croix?

Flight times vary depending on what airport in Montana you fly out of and what airport in Saint Croix you fly into. For example, flying from Missoula to Christiansted takes 18h 11m on average. On the other hand, flying from Billings to Christiansted takes 20h 52m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Cheap Montana to Saint Croix flight deals and tips

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

Fastest flight time

18h 11m

Direct flights

None
The fastest flight from Montana to Saint Croix takes 18h 11m
There are no direct flights from Montana to Saint Croix. There are no popular flight routes from Montana to Saint Croix.
Search flight deals

  • When did momondo last update prices for flights from Montana to Saint Croix?

    Prices for flights from Montana to Saint Croix refresh daily.

  • How old do you have to be to fly from Montana 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 Montana to Saint Croix.

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

    The travel and health documents required for your trip to Saint Croix can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint Croix. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Montana 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 Montana.

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

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

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

Once all potential Montana to Saint Croix flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Montana to Saint Croix now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Saint Croix and let you know when they change.

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