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Cheap flights from Kalispell to Saint Thomas Island from $944

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Kalispell to Saint Thomas Island departing on 2/24. 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 Kalispell to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:41 pm - 1:56 pm
FCA
-
STT
20h 15m2 stops
United Airlines Logo
3:05 pm - 9:57 pm
STT
-
FCA
33h 52m2 stops
$944United Airlines
Tue, Feb 24 - Wed, Mar 4
United Airlines Logo
2:42 pm - 1:56 pm
FCA
-
STT
20h 14m2 stops
United Airlines Logo
3:05 pm - 9:59 pm
STT
-
FCA
33h 54m2 stops
$961United Airlines
Tue, Jan 27 - Mon, Feb 2
United Airlines Logo
2:41 pm - 1:56 pm
FCA
-
STT
20h 15m2 stops
United Airlines Logo
3:05 pm - 9:57 pm
STT
-
FCA
33h 52m2 stops
$1,064United Airlines
Tue, Mar 3 - Thu, Mar 5
United Airlines Logo
2:41 pm - 4:18 pm
FCA
-
STT
22h 37m2 stops
United Airlines Logo
1:02 pm - 9:57 pm
STT
-
FCA
35h 55m2 stops
$1,146United Airlines
Tue, Mar 3 - Thu, Mar 5
United Airlines Logo
2:41 pm - 1:56 pm
FCA
-
STT
20h 15m2 stops
United Airlines Logo
3:05 pm - 12:34 pm
STT
-
FCA
24h 29m1 stop
$1,455United Airlines
Tue, Feb 24 - Wed, Mar 4
United Airlines Logo
2:41 pm - 1:56 pm
FCA
-
STT
20h 15m2 stops
United Airlines Logo
3:05 pm - 12:34 pm
STT
-
FCA
24h 29m1 stop
$1,511United Airlines
Tue, Mar 3 - Thu, Mar 5
United Airlines Logo
2:41 pm - 4:18 pm
FCA
-
STT
22h 37m2 stops
United Airlines Logo
3:05 pm - 12:34 pm
STT
-
FCA
24h 29m1 stop
$1,531United Airlines
Tue, Mar 3 - Thu, Mar 5

United Airlines flights from Kalispell to Saint Thomas Island

Our best United Airlines deals on Kalispell to Saint Thomas Island flight tickets
United Airlines
Feb 24
FCA2:41 pmKalispell Glacier Park
20h 15m
2 stops
STT1:56 pmSaint Thomas Island Cyril E King
Mar 4
STT3:05 pmSaint Thomas Island Cyril E King
33h 52m
2 stops
FCA9:57 pmKalispell Glacier Park
$944
Find similar
United Airlines
Jan 27
FCA2:42 pmKalispell Glacier Park
20h 14m
2 stops
STT1:56 pmSaint Thomas Island Cyril E King
Feb 2
STT3:05 pmSaint Thomas Island Cyril E King
33h 54m
2 stops
FCA9:59 pmKalispell Glacier Park
$961
Find similar
United Airlines
Mar 3
FCA2:41 pmKalispell Glacier Park
20h 15m
2 stops
STT1:56 pmSaint Thomas Island Cyril E King
Mar 5
STT3:05 pmSaint Thomas Island Cyril E King
33h 52m
2 stops
FCA9:57 pmKalispell Glacier Park
$1,064
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kalispell 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 December 28, 2025.
Use the filters below to find and compare flights from Kalispell to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 2/24

2:41 pm-1:56 pm

2 stops20h 15m

Saint Thomas Island Cyril E King

Wed 3/4

3:05 pm-9:57 pm

2 stops33h 52m

$944

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 1/27

2:42 pm-1:56 pm

2 stops20h 14m

Saint Thomas Island Cyril E King

Mon 2/2

3:05 pm-9:59 pm

2 stops33h 54m

$961

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 3/3

2:41 pm-1:56 pm

2 stops20h 15m

Saint Thomas Island Cyril E King

Thu 3/5

3:05 pm-9:57 pm

2 stops33h 52m

$1,064

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 3/3

2:41 pm-4:18 pm

2 stops22h 37m

Saint Thomas Island Cyril E King

Thu 3/5

1:02 pm-9:57 pm

2 stops35h 55m

$1,146

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 2/24

2:41 pm-1:56 pm

2 stops20h 15m

Saint Thomas Island Cyril E King

Wed 3/4

3:05 pm-12:34 pm

1 stop24h 29m

$1,455

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 3/3

2:41 pm-1:56 pm

2 stops20h 15m

Saint Thomas Island Cyril E King

Thu 3/5

3:05 pm-12:34 pm

1 stop24h 29m

$1,511

KalispellSaint Thomas Island

FCA - STT

FCASTT

Kalispell Glacier Park

Tue 3/3

2:41 pm-4:18 pm

2 stops22h 37m

Saint Thomas Island Cyril E King

Thu 3/5

3:05 pm-12:34 pm

1 stop24h 29m

$1,531

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Kalispell to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from Kalispell to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Kalispell to Saint Thomas Island (FCA to STT) flight deals and tips

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

Fastest flight time

20h 14m

Direct flights

None
The fastest flight from Kalispell to Saint Thomas Island takes 20h 14m
There are no direct flights from Kalispell to Saint Thomas Island. There are no popular flight routes from Kalispell to Saint Thomas Island.
Search flight deals

  • How far is Kalispell Glacier Park to Saint Thomas Island Cyril E King by plane?

    Kalispell Glacier Park and Saint Thomas Island Cyril E King are 3433.1 mi apart from one another. Flights usually cover this in 20h 14m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Kalispell Glacier Park Airport to Saint Thomas Island Cyril E King Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kalispell Glacier Park Airport 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.

  • How do I get Price Alerts for flights from Kalispell to Saint Thomas Island?

    Confirm your travel details to search for the latest offers for flights from Kalispell to Saint Thomas Island. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Kalispell to Saint Thomas Island 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?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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 Kalispell to Saint Thomas Island?

Finding the right flight to Saint Thomas Island from Kalispell is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Thomas Island quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Saint Thomas Island from Kalispell with this policy.

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

Once all potential Kalispell to Saint Thomas Island 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 Kalispell to Saint Thomas Island right now. Can momondo alert me if prices change?

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

An easier way to manage your Saint Thomas Island trip

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