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Cheap flights from Montana to Saint Thomas Island from $835

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 Thomas Island departing on 9/1. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from Montana to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:54 pm - 3:58 pm
FCA
-
STT
21h 04m
2 stops
American Airlines Logo
4:55 pm - 11:37 am
STT
-
FCA
20h 42m
2 stops
$835American Airlines
Tue, Sep 1 - Mon, Sep 7
American Airlines Logo
3:55 pm - 3:58 pm
MSO
-
STT
22h 03m
2 stops
American Airlines Logo
4:55 pm - 12:16 pm
STT
-
MSO
21h 21m
2 stops
$835American Airlines
Tue, Sep 1 - Mon, Sep 7
American Airlines Logo
4:54 pm - 3:58 pm
FCA
-
STT
21h 04m
2 stops
American Airlines Logo
4:55 pm - 12:34 pm
STT
-
FCA
21h 39m
2 stops
$840American Airlines
Wed, Sep 2 - Mon, Sep 7
United Airlines Logo
2:33 pm - 12:20 pm
FCA
-
STT
19h 47m
3 stops
United Airlines Logo
4:45 pm - 9:27 pm
STT
-
FCA
30h 42m
2 stops
$860United Airlines
Sun, Apr 19 - Mon, Apr 20
United Airlines Logo
2:38 pm - 3:31 pm
MSO
-
STT
22h 53m
3 stops
United Airlines Logo
2:10 pm - 1:32 pm
STT
-
MSO
25h 22m
3 stops
$865United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
2:33 pm - 3:31 pm
FCA
-
STT
22h 58m
3 stops
United Airlines Logo
1:22 pm - 1:31 pm
STT
-
FCA
26h 09m
2 stops
$867United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
2:33 pm - 3:31 pm
FCA
-
STT
22h 58m
3 stops
United Airlines Logo
2:10 pm - 1:31 pm
STT
-
FCA
25h 21m
2 stops
$877United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
2:38 pm - 12:20 pm
MSO
-
STT
19h 42m
2 stops
United Airlines Logo
2:10 pm - 1:32 pm
STT
-
MSO
25h 22m
3 stops
$886United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
2:33 pm - 12:20 pm
FCA
-
STT
19h 47m
2 stops
United Airlines Logo
4:45 pm - 1:31 pm
STT
-
FCA
22h 46m
2 stops
$899United Airlines
Mon, Apr 20 - Thu, Apr 23
United Airlines Logo
2:33 pm - 3:31 pm
FCA
-
STT
22h 58m
3 stops
United Airlines Logo
2:10 pm - 9:27 pm
STT
-
FCA
33h 17m
2 stops
$903United Airlines
Mon, Apr 20 - Thu, Apr 23

American Airlines flights from Montana to Saint Thomas Island

Our best American Airlines deals on Montana to Saint Thomas Island flight tickets
American Airlines
Sep 1
FCA4:54 pmKalispell Glacier Park
21h 04m
2 stops
STT3:58 pmSaint Thomas Island Cyril E King
Sep 7
STT4:55 pmSaint Thomas Island Cyril E King
20h 42m
2 stops
FCA11:37 amKalispell Glacier Park
$835
American Airlines
Sep 2
FCA4:54 pmKalispell Glacier Park
21h 04m
2 stops
STT3:58 pmSaint Thomas Island Cyril E King
Sep 7
STT4:55 pmSaint Thomas Island Cyril E King
21h 39m
2 stops
FCA12:34 pmKalispell Glacier Park
$840
American Airlines
Apr 18
MSO6:45 amMissoula Johnson-Bell Field
28h 30m
2 stops
STT1:15 pmSaint Thomas Island Cyril E King
Apr 26
STT3:29 pmSaint Thomas Island Cyril E King
32h 16m
2 stops
MSO9:45 pmMissoula Johnson-Bell Field
$960

United Airlines flights from Montana to Saint Thomas Island

Our best United Airlines deals on Montana to Saint Thomas Island flight tickets
United Airlines
Apr 19
FCA2:33 pmKalispell Glacier Park
19h 47m
3 stops
STT12:20 pmSaint Thomas Island Cyril E King
Apr 20
STT4:45 pmSaint Thomas Island Cyril E King
30h 42m
2 stops
FCA9:27 pmKalispell Glacier Park
$860
United Airlines
Apr 20
MSO2:38 pmMissoula Johnson-Bell Field
22h 53m
3 stops
STT3:31 pmSaint Thomas Island Cyril E King
Apr 23
STT2:10 pmSaint Thomas Island Cyril E King
25h 22m
3 stops
MSO1:32 pmMissoula Johnson-Bell Field
$865
United Airlines
Apr 20
FCA2:33 pmKalispell Glacier Park
22h 58m
3 stops
STT3:31 pmSaint Thomas Island Cyril E King
Apr 23
STT1:22 pmSaint Thomas Island Cyril E King
26h 09m
2 stops
FCA1:31 pmKalispell Glacier Park
$867

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Saint Thomas Island 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 April 5, 2026.
Use the filters below to find and compare flights from Montana to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 9/1

4:54 pm-3:58 pm

2 stops21h 04m

Saint Thomas Island Cyril E King

Mon 9/7

4:55 pm-11:37 am

2 stops20h 42m

$835

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Tue 9/1

3:55 pm-3:58 pm

2 stops22h 03m

Saint Thomas Island Cyril E King

Mon 9/7

4:55 pm-12:16 pm

2 stops21h 21m

$835

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Wed 9/2

4:54 pm-3:58 pm

2 stops21h 04m

Saint Thomas Island Cyril E King

Mon 9/7

4:55 pm-12:34 pm

2 stops21h 39m

$840

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Sun 4/19

2:33 pm-12:20 pm

3 stops19h 47m

Saint Thomas Island Cyril E King

Mon 4/20

4:45 pm-9:27 pm

2 stops30h 42m

$860

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Mon 4/20

2:38 pm-3:31 pm

3 stops22h 53m

Saint Thomas Island Cyril E King

Thu 4/23

2:10 pm-1:32 pm

3 stops25h 22m

$865

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Mon 4/20

2:33 pm-3:31 pm

3 stops22h 58m

Saint Thomas Island Cyril E King

Thu 4/23

1:22 pm-1:31 pm

2 stops26h 09m

$867

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Mon 4/20

2:33 pm-3:31 pm

3 stops22h 58m

Saint Thomas Island Cyril E King

Thu 4/23

2:10 pm-1:31 pm

2 stops25h 21m

$877

MissoulaSaint Thomas Island

MSO - STT

MSOSTT

Missoula Johnson-Bell Field

Mon 4/20

2:38 pm-12:20 pm

2 stops19h 42m

Saint Thomas Island Cyril E King

Thu 4/23

2:10 pm-1:32 pm

3 stops25h 22m

$886

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Mon 4/20

2:33 pm-12:20 pm

2 stops19h 47m

Saint Thomas Island Cyril E King

Thu 4/23

4:45 pm-1:31 pm

2 stops22h 46m

$899

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Mon 4/20

2:33 pm-3:31 pm

3 stops22h 58m

Saint Thomas Island Cyril E King

Thu 4/23

2:10 pm-9:27 pm

2 stops33h 17m

$903

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from Montana to Saint Thomas Island

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 does it take to fly to Saint Thomas Island?

Average flight duration from Montana to Saint Thomas Island depends on which airport you fly into and out of. Flying from Kalispell to Saint Thomas Island is 17h 40m on average, while flying from Missoula to Saint Thomas Island is 17h 42m on average. Saint Thomas Island is the most popular airport in Saint Thomas Island.

Cheap Montana to Saint Thomas Island flight deals and tips

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

Fastest flight time

17h 40m

Direct flights

None
The fastest flight from Montana to Saint Thomas Island takes 17h 40m
There are no direct flights from Montana to Saint Thomas Island. There are no popular flight routes from Montana to Saint Thomas Island.
Search flight deals

Frequently asked questions about flying from Montana to Saint Thomas Island

  • When did momondo last update prices for flights from Montana to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Montana to Saint Thomas Island Cyril E King Airport were last updated today.

  • How old do you have to be to fly from Montana to Saint Thomas Island Cyril E King Airport?

    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 Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Saint Thomas Island?

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 Thomas Island from Montana.

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

Flights from Montana to Saint Thomas Island with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Saint Thomas Island from Montana.

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

If you are not ready to book a flight from Montana to Saint Thomas Island 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 Thomas Island and let you know when they change.

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